[llvm] 304f1d5 - [IR] Switch everything to use memory attribute

Nikita Popov via llvm-commits llvm-commits at lists.llvm.org
Fri Nov 4 02:22:43 PDT 2022


Author: Nikita Popov
Date: 2022-11-04T10:21:38+01:00
New Revision: 304f1d59ca41872c094def3aee0a8689df6aa398

URL: https://github.com/llvm/llvm-project/commit/304f1d59ca41872c094def3aee0a8689df6aa398
DIFF: https://github.com/llvm/llvm-project/commit/304f1d59ca41872c094def3aee0a8689df6aa398.diff

LOG: [IR] Switch everything to use memory attribute

This switches everything to use the memory attribute proposed in
https://discourse.llvm.org/t/rfc-unify-memory-effect-attributes/65579.
The old argmemonly, inaccessiblememonly and inaccessiblemem_or_argmemonly
attributes are dropped. The readnone, readonly and writeonly attributes
are restricted to parameters only.

The old attributes are auto-upgraded both in bitcode and IR.
The bitcode upgrade is a policy requirement that has to be retained
indefinitely. The IR upgrade is mainly there so it's not necessary
to update all tests using memory attributes in this patch, which
is already large enough. We could drop that part after migrating
tests, or retain it longer term, to make it easier to import IR
from older LLVM versions.

High-level Function/CallBase APIs like doesNotAccessMemory() or
setDoesNotAccessMemory() are mapped transparently to the memory
attribute. Code that directly manipulates attributes (e.g. via
AttributeList) on the other hand needs to switch to working with
the memory attribute instead.

Differential Revision: https://reviews.llvm.org/D135780

Added: 
    

Modified: 
    clang/lib/CodeGen/CGCall.cpp
    clang/lib/CodeGen/CGObjCMac.cpp
    clang/lib/CodeGen/ItaniumCXXABI.cpp
    clang/test/CodeGen/asm-attrs.c
    clang/test/CodeGen/builtin-sqrt.c
    clang/test/CodeGen/complex-builtins.c
    clang/test/CodeGen/complex-libcalls.c
    clang/test/CodeGen/function-attributes.c
    clang/test/CodeGen/libcall-declarations.c
    clang/test/CodeGen/libcalls.c
    clang/test/CodeGen/math-builtins.c
    clang/test/CodeGen/math-libcalls.c
    clang/test/CodeGen/ms-declspecs.c
    clang/test/CodeGen/pragma-weak.c
    clang/test/CodeGen/struct-passing.c
    clang/test/CodeGenCXX/2009-05-04-PureConstNounwind.cpp
    clang/test/CodeGenCXX/dynamic-cast.cpp
    clang/test/CodeGenCXX/threadlocal_address.cpp
    clang/test/CodeGenObjC/class-stubs.m
    clang/test/CodeGenOpenCL/builtins-amdgcn.cl
    clang/test/CodeGenOpenCL/fdeclare-opencl-builtins.cl
    clang/test/OpenMP/barrier_codegen.cpp
    clang/test/OpenMP/irbuilder_simd_aligned.cpp
    clang/test/Sema/libbuiltins-ctype-powerpc64.c
    clang/test/Sema/libbuiltins-ctype-x86_64.c
    llvm/docs/LangRef.rst
    llvm/docs/ReleaseNotes.rst
    llvm/include/llvm/AsmParser/LLToken.h
    llvm/include/llvm/Frontend/OpenMP/OMPKinds.def
    llvm/include/llvm/IR/Attributes.td
    llvm/include/llvm/IR/Function.h
    llvm/include/llvm/IR/InstrTypes.h
    llvm/lib/Analysis/BasicAliasAnalysis.cpp
    llvm/lib/AsmParser/LLLexer.cpp
    llvm/lib/AsmParser/LLParser.cpp
    llvm/lib/Bitcode/Reader/BitcodeReader.cpp
    llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
    llvm/lib/CodeGen/MachineVerifier.cpp
    llvm/lib/IR/Function.cpp
    llvm/lib/IR/Instructions.cpp
    llvm/lib/IR/Verifier.cpp
    llvm/lib/Target/AMDGPU/AMDGPULibFunc.cpp
    llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    llvm/lib/Target/Mips/Mips16HardFloat.cpp
    llvm/lib/Transforms/IPO/AttributorAttributes.cpp
    llvm/lib/Transforms/IPO/FunctionAttrs.cpp
    llvm/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp
    llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
    llvm/lib/Transforms/Scalar/PartiallyInlineLibCalls.cpp
    llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp
    llvm/lib/Transforms/Scalar/SCCP.cpp
    llvm/lib/Transforms/Utils/BuildLibCalls.cpp
    llvm/lib/Transforms/Utils/CodeExtractor.cpp
    llvm/test/Analysis/BasicAA/cs-cs.ll
    llvm/test/Analysis/BasicAA/intrinsics-arm.ll
    llvm/test/Analysis/BasicAA/intrinsics.ll
    llvm/test/Analysis/BasicAA/pure-const-dce.ll
    llvm/test/Analysis/TypeBasedAliasAnalysis/functionattrs.ll
    llvm/test/Analysis/TypeBasedAliasAnalysis/intrinsics.ll
    llvm/test/Assembler/aarch64-intrinsics-attributes.ll
    llvm/test/Assembler/masked-load-store-intrinsics-attributes.ll
    llvm/test/Bindings/llvm-c/debug_info.ll
    llvm/test/Bitcode/attributes-3.3.ll
    llvm/test/Bitcode/attributes.ll
    llvm/test/Bitcode/compatibility-3.6.ll
    llvm/test/Bitcode/compatibility-3.7.ll
    llvm/test/Bitcode/compatibility-3.8.ll
    llvm/test/Bitcode/compatibility-3.9.ll
    llvm/test/Bitcode/compatibility-4.0.ll
    llvm/test/Bitcode/compatibility-5.0.ll
    llvm/test/Bitcode/compatibility-6.0.ll
    llvm/test/Bitcode/compatibility.ll
    llvm/test/Bitcode/ptest-new.ll
    llvm/test/Bitcode/ptest-old.ll
    llvm/test/Bitcode/upgrade-frame-pointer.ll
    llvm/test/Bitcode/upgrade-invariant-group-barrier.ll
    llvm/test/CodeGen/AMDGPU/addrspacecast-constantexpr.ll
    llvm/test/CodeGen/AMDGPU/annotate-kernel-features-hsa-call.ll
    llvm/test/CodeGen/AMDGPU/annotate-kernel-features-hsa.ll
    llvm/test/CodeGen/AMDGPU/annotate-kernel-features.ll
    llvm/test/CodeGen/AMDGPU/inline-attr.ll
    llvm/test/CodeGen/AMDGPU/pal-simple-indirect-call.ll
    llvm/test/CodeGen/AMDGPU/simplify-libcalls.ll
    llvm/test/CodeGen/AMDGPU/uniform-work-group-recursion-test.ll
    llvm/test/Feature/OperandBundles/function-attrs.ll
    llvm/test/Feature/intrinsics.ll
    llvm/test/Instrumentation/DataFlowSanitizer/basic.ll
    llvm/test/Instrumentation/MemorySanitizer/attributes.ll
    llvm/test/Other/attribute-comment.ll
    llvm/test/Other/cgscc-devirt-iteration.ll
    llvm/test/Other/cgscc-iterate-function-mutation.ll
    llvm/test/Other/invariant.group.ll
    llvm/test/Other/opt-override-mcpu-mattr.ll
    llvm/test/Other/print-module-scope.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/2008-02-01-ReturnAttrs.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/2008-07-02-array-indexing.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/2008-09-07-CGUpdate.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/2008-09-08-CGUpdateSelfEdge.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/X86/attributes.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/X86/min-legal-vector-width.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/aggregate-promote.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/alignment.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/attrs.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/basictest.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/byval-2.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/byval.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/chained.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/control-flow.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/control-flow2.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/crash.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/fp80.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/inalloca.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/invalidation.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/live_called_from_dead.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/live_called_from_dead_2.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/musttail.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/pr33641_remove_arg_dbgvalue.ll
    llvm/test/Transforms/Attributor/ArgumentPromotion/sret.ll
    llvm/test/Transforms/Attributor/IPConstantProp/2009-09-24-byval-ptr.ll
    llvm/test/Transforms/Attributor/IPConstantProp/PR16052.ll
    llvm/test/Transforms/Attributor/IPConstantProp/PR26044.ll
    llvm/test/Transforms/Attributor/IPConstantProp/PR43857.ll
    llvm/test/Transforms/Attributor/IPConstantProp/arg-count-mismatch.ll
    llvm/test/Transforms/Attributor/IPConstantProp/arg-type-mismatch.ll
    llvm/test/Transforms/Attributor/IPConstantProp/comdat-ipo.ll
    llvm/test/Transforms/Attributor/IPConstantProp/dangling-block-address.ll
    llvm/test/Transforms/Attributor/IPConstantProp/deadarg.ll
    llvm/test/Transforms/Attributor/IPConstantProp/fp-bc-icmp-const-fold.ll
    llvm/test/Transforms/Attributor/IPConstantProp/global.ll
    llvm/test/Transforms/Attributor/IPConstantProp/multiple_callbacks.ll
    llvm/test/Transforms/Attributor/IPConstantProp/musttail-call.ll
    llvm/test/Transforms/Attributor/IPConstantProp/pthreads.ll
    llvm/test/Transforms/Attributor/IPConstantProp/recursion.ll
    llvm/test/Transforms/Attributor/IPConstantProp/remove-call-inst.ll
    llvm/test/Transforms/Attributor/IPConstantProp/return-argument.ll
    llvm/test/Transforms/Attributor/IPConstantProp/return-constant.ll
    llvm/test/Transforms/Attributor/IPConstantProp/return-constants.ll
    llvm/test/Transforms/Attributor/IPConstantProp/solve-after-each-resolving-undefs-for-function.ll
    llvm/test/Transforms/Attributor/IPConstantProp/thread_local_acs.ll
    llvm/test/Transforms/Attributor/align.ll
    llvm/test/Transforms/Attributor/allow_list.ll
    llvm/test/Transforms/Attributor/alwaysinline.ll
    llvm/test/Transforms/Attributor/call-simplify-pointer-info.ll
    llvm/test/Transforms/Attributor/cb_liveness_disabled.ll
    llvm/test/Transforms/Attributor/cb_liveness_enabled.ll
    llvm/test/Transforms/Attributor/cb_range_disabled.ll
    llvm/test/Transforms/Attributor/cb_range_enabled.ll
    llvm/test/Transforms/Attributor/depgraph.ll
    llvm/test/Transforms/Attributor/dereferenceable-1.ll
    llvm/test/Transforms/Attributor/dereferenceable-2-inseltpoison.ll
    llvm/test/Transforms/Attributor/dereferenceable-2.ll
    llvm/test/Transforms/Attributor/heap_to_stack.ll
    llvm/test/Transforms/Attributor/heap_to_stack_gpu.ll
    llvm/test/Transforms/Attributor/internal-noalias.ll
    llvm/test/Transforms/Attributor/internalize.ll
    llvm/test/Transforms/Attributor/liveness.ll
    llvm/test/Transforms/Attributor/liveness_chains.ll
    llvm/test/Transforms/Attributor/lowerheap.ll
    llvm/test/Transforms/Attributor/lvi-after-jumpthreading.ll
    llvm/test/Transforms/Attributor/lvi-for-ashr.ll
    llvm/test/Transforms/Attributor/memory_locations.ll
    llvm/test/Transforms/Attributor/misc.ll
    llvm/test/Transforms/Attributor/misc_crash.ll
    llvm/test/Transforms/Attributor/noalias.ll
    llvm/test/Transforms/Attributor/nocapture-1.ll
    llvm/test/Transforms/Attributor/nocapture-2.ll
    llvm/test/Transforms/Attributor/nodelete.ll
    llvm/test/Transforms/Attributor/nofree.ll
    llvm/test/Transforms/Attributor/nonnull.ll
    llvm/test/Transforms/Attributor/norecurse.ll
    llvm/test/Transforms/Attributor/noreturn.ll
    llvm/test/Transforms/Attributor/noreturn_async.ll
    llvm/test/Transforms/Attributor/noreturn_sync.ll
    llvm/test/Transforms/Attributor/nosync.ll
    llvm/test/Transforms/Attributor/nounwind.ll
    llvm/test/Transforms/Attributor/openmp_parallel.ll
    llvm/test/Transforms/Attributor/pointer-info.ll
    llvm/test/Transforms/Attributor/potential.ll
    llvm/test/Transforms/Attributor/range.ll
    llvm/test/Transforms/Attributor/read_write_returned_arguments_scc.ll
    llvm/test/Transforms/Attributor/readattrs.ll
    llvm/test/Transforms/Attributor/returned.ll
    llvm/test/Transforms/Attributor/undefined_behavior.ll
    llvm/test/Transforms/Attributor/value-simplify-assume.ll
    llvm/test/Transforms/Attributor/value-simplify-dbg.ll
    llvm/test/Transforms/Attributor/value-simplify-gpu.ll
    llvm/test/Transforms/Attributor/value-simplify-instances.ll
    llvm/test/Transforms/Attributor/value-simplify-local-remote.ll
    llvm/test/Transforms/Attributor/value-simplify-pointer-info-struct.ll
    llvm/test/Transforms/Attributor/value-simplify-pointer-info.ll
    llvm/test/Transforms/Attributor/value-simplify.ll
    llvm/test/Transforms/Attributor/willreturn.ll
    llvm/test/Transforms/Attributor/wrapper.ll
    llvm/test/Transforms/Coroutines/coro-readnone-02.ll
    llvm/test/Transforms/DeadArgElim/2010-04-30-DbgInfo.ll
    llvm/test/Transforms/FunctionAttrs/2008-09-03-Mutual.ll
    llvm/test/Transforms/FunctionAttrs/2008-09-03-ReadNone.ll
    llvm/test/Transforms/FunctionAttrs/2008-09-03-ReadOnly.ll
    llvm/test/Transforms/FunctionAttrs/2008-12-29-Constant.ll
    llvm/test/Transforms/FunctionAttrs/argmemonly.ll
    llvm/test/Transforms/FunctionAttrs/atomic.ll
    llvm/test/Transforms/FunctionAttrs/convergent.ll
    llvm/test/Transforms/FunctionAttrs/incompatible_fn_attrs.ll
    llvm/test/Transforms/FunctionAttrs/int_sideeffect.ll
    llvm/test/Transforms/FunctionAttrs/nofree-attributor.ll
    llvm/test/Transforms/FunctionAttrs/nofree.ll
    llvm/test/Transforms/FunctionAttrs/norecurse.ll
    llvm/test/Transforms/FunctionAttrs/nosync.ll
    llvm/test/Transforms/FunctionAttrs/nounwind.ll
    llvm/test/Transforms/FunctionAttrs/optnone.ll
    llvm/test/Transforms/FunctionAttrs/readattrs.ll
    llvm/test/Transforms/FunctionAttrs/stats.ll
    llvm/test/Transforms/FunctionAttrs/willreturn-callsites.ll
    llvm/test/Transforms/FunctionAttrs/willreturn.ll
    llvm/test/Transforms/FunctionAttrs/writeonly.ll
    llvm/test/Transforms/GlobalOpt/ctor-memset.ll
    llvm/test/Transforms/GlobalOpt/pr54572.ll
    llvm/test/Transforms/InferFunctionAttrs/annotate.ll
    llvm/test/Transforms/InferFunctionAttrs/norecurse_debug.ll
    llvm/test/Transforms/InferFunctionAttrs/readonly_and_writeonly.ll
    llvm/test/Transforms/Inline/cgscc-update.ll
    llvm/test/Transforms/Inline/inline_invoke.ll
    llvm/test/Transforms/InstCombine/AArch64/2012-04-23-Neon-Intrinsics.ll
    llvm/test/Transforms/InstCombine/stpncpy-1.ll
    llvm/test/Transforms/LICM/scalar-promote.ll
    llvm/test/Transforms/LICM/strlen.ll
    llvm/test/Transforms/LowerMatrixIntrinsics/strided-store-double.ll
    llvm/test/Transforms/ObjCARC/basic.ll
    llvm/test/Transforms/ObjCARC/ensure-that-exception-unwind-path-is-visited.ll
    llvm/test/Transforms/ObjCARC/nested.ll
    llvm/test/Transforms/ObjCARC/rle-s2l.ll
    llvm/test/Transforms/OpenMP/add_attributes.ll
    llvm/test/Transforms/OpenMP/parallel_deletion.ll
    llvm/test/Transforms/OpenMP/remove_globalization.ll
    llvm/test/Transforms/OpenMP/replace_globalization.ll
    llvm/test/Transforms/OpenMP/spmdization.ll
    llvm/test/Transforms/OpenMP/spmdization_assumes.ll
    llvm/test/Transforms/OpenMP/spmdization_guarding.ll
    llvm/test/Transforms/OpenMP/spmdization_guarding_two_reaching_kernels.ll
    llvm/test/Transforms/RewriteStatepointsForGC/X86/intrinsic-attributes.ll
    llvm/test/Transforms/RewriteStatepointsForGC/statepoint-attrs.ll
    llvm/test/Transforms/SCCP/ipscp-drop-argmemonly.ll
    llvm/test/Transforms/SCCP/remove-call-inst.ll
    llvm/test/Transforms/SampleProfile/pseudo-probe-emit.ll
    llvm/test/Transforms/SimplifyCFG/X86/merge-compatible-invokes-of-landingpad-debuginfo.ll
    llvm/test/Transforms/SimplifyCFG/X86/merge-compatible-invokes-of-landingpad.ll
    llvm/test/Transforms/SimplifyCFG/preserve-branchweights.ll
    llvm/test/Verifier/fp-intrinsics.ll
    llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/check_attrs.ll.funcattrs.expected
    llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/various_ir_values.ll.funcsig.globals.expected
    llvm/test/tools/llvm-reduce/remove-attributes-from-intrinsics.ll
    llvm/unittests/IR/InstructionsTest.cpp
    llvm/utils/TableGen/IntrinsicEmitter.cpp
    llvm/utils/UpdateTestChecks/common.py
    mlir/test/Target/LLVMIR/llvmir.mlir

Removed: 
    llvm/test/Verifier/writeonly.ll


################################################################################
diff  --git a/clang/lib/CodeGen/CGCall.cpp b/clang/lib/CodeGen/CGCall.cpp
index 8cea9f3397b67..b7d6ea2d3cc62 100644
--- a/clang/lib/CodeGen/CGCall.cpp
+++ b/clang/lib/CodeGen/CGCall.cpp
@@ -2121,6 +2121,15 @@ void CodeGenModule::ConstructAttributeList(StringRef Name,
   // The NoBuiltinAttr attached to the target FunctionDecl.
   const NoBuiltinAttr *NBA = nullptr;
 
+  // Some ABIs may result in additional accesses to arguments that may
+  // otherwise not be present.
+  auto AddPotentialArgAccess = [&]() {
+    llvm::Attribute A = FuncAttrs.getAttribute(llvm::Attribute::Memory);
+    if (A.isValid())
+      FuncAttrs.addMemoryAttr(A.getMemoryEffects() |
+                              llvm::MemoryEffects::argMemOnly());
+  };
+
   // Collect function IR attributes based on declaration-specific
   // information.
   // FIXME: handle sseregparm someday...
@@ -2167,18 +2176,18 @@ void CodeGenModule::ConstructAttributeList(StringRef Name,
 
     // 'const', 'pure' and 'noalias' attributed functions are also nounwind.
     if (TargetDecl->hasAttr<ConstAttr>()) {
-      FuncAttrs.addAttribute(llvm::Attribute::ReadNone);
+      FuncAttrs.addMemoryAttr(llvm::MemoryEffects::none());
       FuncAttrs.addAttribute(llvm::Attribute::NoUnwind);
       // gcc specifies that 'const' functions have greater restrictions than
       // 'pure' functions, so they also cannot have infinite loops.
       FuncAttrs.addAttribute(llvm::Attribute::WillReturn);
     } else if (TargetDecl->hasAttr<PureAttr>()) {
-      FuncAttrs.addAttribute(llvm::Attribute::ReadOnly);
+      FuncAttrs.addMemoryAttr(llvm::MemoryEffects::readOnly());
       FuncAttrs.addAttribute(llvm::Attribute::NoUnwind);
       // gcc specifies that 'pure' functions cannot have infinite loops.
       FuncAttrs.addAttribute(llvm::Attribute::WillReturn);
     } else if (TargetDecl->hasAttr<NoAliasAttr>()) {
-      FuncAttrs.addAttribute(llvm::Attribute::ArgMemOnly);
+      FuncAttrs.addMemoryAttr(llvm::MemoryEffects::argMemOnly());
       FuncAttrs.addAttribute(llvm::Attribute::NoUnwind);
     }
     if (TargetDecl->hasAttr<RestrictAttr>())
@@ -2356,8 +2365,7 @@ void CodeGenModule::ConstructAttributeList(StringRef Name,
   case ABIArgInfo::InAlloca:
   case ABIArgInfo::Indirect: {
     // inalloca and sret disable readnone and readonly
-    FuncAttrs.removeAttribute(llvm::Attribute::ReadOnly)
-      .removeAttribute(llvm::Attribute::ReadNone);
+    AddPotentialArgAccess();
     break;
   }
 
@@ -2527,9 +2535,7 @@ void CodeGenModule::ConstructAttributeList(StringRef Name,
         Attrs.addAlignmentAttr(Align.getQuantity());
 
       // byval disables readnone and readonly.
-      FuncAttrs.removeAttribute(llvm::Attribute::ReadOnly)
-        .removeAttribute(llvm::Attribute::ReadNone);
-
+      AddPotentialArgAccess();
       break;
     }
     case ABIArgInfo::IndirectAliased: {
@@ -2545,8 +2551,7 @@ void CodeGenModule::ConstructAttributeList(StringRef Name,
 
     case ABIArgInfo::InAlloca:
       // inalloca disables readnone and readonly.
-      FuncAttrs.removeAttribute(llvm::Attribute::ReadOnly)
-          .removeAttribute(llvm::Attribute::ReadNone);
+      AddPotentialArgAccess();
       continue;
     }
 

diff  --git a/clang/lib/CodeGen/CGObjCMac.cpp b/clang/lib/CodeGen/CGObjCMac.cpp
index c3b8e6e8afa91..92eadb39e6ded 100644
--- a/clang/lib/CodeGen/CGObjCMac.cpp
+++ b/clang/lib/CodeGen/CGObjCMac.cpp
@@ -737,14 +737,17 @@ class ObjCNonFragileABITypesHelper : public ObjCCommonTypesHelper {
     // Also it is safe to make it readnone, since we never load or store the
     // classref except by calling this function.
     llvm::Type *params[] = { Int8PtrPtrTy };
+    llvm::LLVMContext &C = CGM.getLLVMContext();
+    llvm::AttributeSet AS = llvm::AttributeSet::get(C, {
+        llvm::Attribute::get(C, llvm::Attribute::NonLazyBind),
+        llvm::Attribute::getWithMemoryEffects(C, llvm::MemoryEffects::none()),
+        llvm::Attribute::get(C, llvm::Attribute::NoUnwind),
+    });
     llvm::FunctionCallee F = CGM.CreateRuntimeFunction(
         llvm::FunctionType::get(ClassnfABIPtrTy, params, false),
         "objc_loadClassref",
         llvm::AttributeList::get(CGM.getLLVMContext(),
-                                 llvm::AttributeList::FunctionIndex,
-                                 {llvm::Attribute::NonLazyBind,
-                                  llvm::Attribute::ReadNone,
-                                  llvm::Attribute::NoUnwind}));
+                                 llvm::AttributeList::FunctionIndex, AS));
     if (!CGM.getTriple().isOSBinFormatCOFF())
       cast<llvm::Function>(F.getCallee())->setLinkage(
         llvm::Function::ExternalWeakLinkage);

diff  --git a/clang/lib/CodeGen/ItaniumCXXABI.cpp b/clang/lib/CodeGen/ItaniumCXXABI.cpp
index f8491d3f59ac7..5f7c739a76786 100644
--- a/clang/lib/CodeGen/ItaniumCXXABI.cpp
+++ b/clang/lib/CodeGen/ItaniumCXXABI.cpp
@@ -1325,8 +1325,9 @@ static llvm::FunctionCallee getItaniumDynamicCastFn(CodeGenFunction &CGF) {
   llvm::FunctionType *FTy = llvm::FunctionType::get(Int8PtrTy, Args, false);
 
   // Mark the function as nounwind readonly.
-  llvm::Attribute::AttrKind FuncAttrs[] = { llvm::Attribute::NoUnwind,
-                                            llvm::Attribute::ReadOnly };
+  llvm::AttrBuilder FuncAttrs(CGF.getLLVMContext());
+  FuncAttrs.addAttribute(llvm::Attribute::NoUnwind);
+  FuncAttrs.addMemoryAttr(llvm::MemoryEffects::readOnly());
   llvm::AttributeList Attrs = llvm::AttributeList::get(
       CGF.getLLVMContext(), llvm::AttributeList::FunctionIndex, FuncAttrs);
 

diff  --git a/clang/test/CodeGen/asm-attrs.c b/clang/test/CodeGen/asm-attrs.c
index fa07601cc01ed..6d95e10d0af0b 100644
--- a/clang/test/CodeGen/asm-attrs.c
+++ b/clang/test/CodeGen/asm-attrs.c
@@ -10,9 +10,9 @@
 // CHECK: call void asm sideeffect "foo7", {{.*}} [[NOATTRS]]
 // CHECK: call i32 asm "foo8", {{.*}} [[READNONE]]
 
-// CHECK: attributes [[READNONE]] = { nounwind readnone }
+// CHECK: attributes [[READNONE]] = { nounwind memory(none) }
 // CHECK: attributes [[NOATTRS]] = { nounwind }
-// CHECK: attributes [[READONLY]] = { nounwind readonly }
+// CHECK: attributes [[READONLY]] = { nounwind memory(read) }
 
 int g0, g1;
 

diff  --git a/clang/test/CodeGen/builtin-sqrt.c b/clang/test/CodeGen/builtin-sqrt.c
index 32300085682bd..2313a68d2d0e2 100644
--- a/clang/test/CodeGen/builtin-sqrt.c
+++ b/clang/test/CodeGen/builtin-sqrt.c
@@ -8,8 +8,8 @@ float foo(float X) {
 }
 
 // HAS_ERRNO: declare float @sqrtf(float noundef) [[ATTR:#[0-9]+]]
-// HAS_ERRNO-NOT: attributes [[ATTR]] = {{{.*}} readnone
+// HAS_ERRNO-NOT: attributes [[ATTR]] = {{{.*}} memory(none)
 
 // NO_ERRNO: declare float @llvm.sqrt.f32(float) [[ATTR:#[0-9]+]]
-// NO_ERRNO: attributes [[ATTR]] = { nocallback nofree nosync nounwind readnone {{.*}}}
+// NO_ERRNO: attributes [[ATTR]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
 

diff  --git a/clang/test/CodeGen/complex-builtins.c b/clang/test/CodeGen/complex-builtins.c
index 5dc5424ae9316..29d6e7ba909f6 100644
--- a/clang/test/CodeGen/complex-builtins.c
+++ b/clang/test/CodeGen/complex-builtins.c
@@ -197,9 +197,9 @@ void foo(float f) {
 // HAS_ERRNO: declare { x86_fp80, x86_fp80 } @ctanhl(ptr noundef byval({ x86_fp80, x86_fp80 }) align 16) [[NOT_READNONE]]
 };
 
-// NO__ERRNO: attributes [[READNONE]] = { {{.*}}readnone{{.*}} }
+// NO__ERRNO: attributes [[READNONE]] = { {{.*}}memory(none){{.*}} }
 // NO__ERRNO: attributes [[NOT_READNONE]] = { nounwind {{.*}} }
 
 // HAS_ERRNO: attributes [[NOT_READNONE]] = { nounwind {{.*}} }
-// HAS_ERRNO: attributes [[READNONE]] = { {{.*}}readnone{{.*}} }
+// HAS_ERRNO: attributes [[READNONE]] = { {{.*}}memory(none){{.*}} }
 // HAS_ERRNO: attributes [[WILLRETURN_NOT_READNONE]] = { nounwind willreturn {{.*}} }

diff  --git a/clang/test/CodeGen/complex-libcalls.c b/clang/test/CodeGen/complex-libcalls.c
index 3a197a2f2005b..7d4e3d04cf64a 100644
--- a/clang/test/CodeGen/complex-libcalls.c
+++ b/clang/test/CodeGen/complex-libcalls.c
@@ -197,9 +197,9 @@ void foo(float f) {
 // HAS_ERRNO: declare { x86_fp80, x86_fp80 } @ctanhl(ptr noundef byval({ x86_fp80, x86_fp80 }) align 16) [[NOT_READNONE]]
 };
 
-// NO__ERRNO: attributes [[READNONE]] = { {{.*}}readnone{{.*}} }
+// NO__ERRNO: attributes [[READNONE]] = { {{.*}}memory(none){{.*}} }
 // NO__ERRNO: attributes [[NOT_READNONE]] = { nounwind {{.*}} }
 
 // HAS_ERRNO: attributes [[NOT_READNONE]] = { nounwind {{.*}} }
-// HAS_ERRNO: attributes [[READNONE]] = { {{.*}}readnone{{.*}} }
+// HAS_ERRNO: attributes [[READNONE]] = { {{.*}}memory(none){{.*}} }
 // HAS_ERRNO: attributes [[WILLRETURN_NOT_READNONE]] = { nounwind willreturn {{.*}} }

diff  --git a/clang/test/CodeGen/function-attributes.c b/clang/test/CodeGen/function-attributes.c
index 408a4f16f9b6c..38a0fb03de1e2 100644
--- a/clang/test/CodeGen/function-attributes.c
+++ b/clang/test/CodeGen/function-attributes.c
@@ -111,9 +111,9 @@ void f20(void) {
 
 // CHECK: attributes [[NUW]] = { nounwind optsize{{.*}} }
 // CHECK: attributes [[AI]] = { alwaysinline nounwind optsize{{.*}} }
-// CHECK: attributes [[NUW_OS_RN]] = { nounwind optsize readnone{{.*}} }
+// CHECK: attributes [[NUW_OS_RN]] = { nounwind optsize willreturn memory(none){{.*}} }
 // CHECK: attributes [[SR]] = { nounwind optsize{{.*}} "stackrealign"{{.*}} }
 // CHECK: attributes [[RT]] = { nounwind optsize returns_twice{{.*}} }
 // CHECK: attributes [[NR]] = { noreturn optsize }
-// CHECK: attributes [[NUW_RN]] = { nounwind optsize readnone willreturn }
+// CHECK: attributes [[NUW_RN]] = { nounwind optsize willreturn memory(none) }
 // CHECK: attributes [[RT_CALL]] = { optsize returns_twice }

diff  --git a/clang/test/CodeGen/libcall-declarations.c b/clang/test/CodeGen/libcall-declarations.c
index e39263c3d5c4c..ebdb05d7ff109 100644
--- a/clang/test/CodeGen/libcall-declarations.c
+++ b/clang/test/CodeGen/libcall-declarations.c
@@ -614,8 +614,8 @@ void *use[] = {
 // CHECK-ERRNO: declare { double, double } @ctanh(double noundef, double noundef) [[NONCONST]]
 // CHECK-ERRNO: declare <2 x float> @ctanhf(<2 x float> noundef) [[NONCONST]]
 
-// CHECK-NOERRNO: attributes [[NUWRN]] = { nounwind readnone{{.*}} }
-// CHECK-NOERRNO: attributes [[NUWRO]] = { nounwind readonly{{.*}} }
+// CHECK-NOERRNO: attributes [[NUWRN]] = { nounwind willreturn memory(none){{.*}} }
+// CHECK-NOERRNO: attributes [[NUWRO]] = { nounwind willreturn memory(read){{.*}} }
 
-// CHECK-ERRNO: attributes [[NUWRN]] = { nounwind readnone{{.*}} }
-// CHECK-ERRNO: attributes [[NUWRO]] = { nounwind readonly{{.*}} }
+// CHECK-ERRNO: attributes [[NUWRN]] = { nounwind willreturn memory(none){{.*}} }
+// CHECK-ERRNO: attributes [[NUWRO]] = { nounwind willreturn memory(read){{.*}} }

diff  --git a/clang/test/CodeGen/libcalls.c b/clang/test/CodeGen/libcalls.c
index 8313b9a742df8..42b6df4ccbe4a 100644
--- a/clang/test/CodeGen/libcalls.c
+++ b/clang/test/CodeGen/libcalls.c
@@ -124,5 +124,5 @@ void test_builtins(double d, float f, long double ld) {
 }
 
 // CHECK-YES: attributes [[NUW]] = { nounwind "frame-pointer"="none" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-features"="+cx8,+x87" }
-// CHECK-NO-DAG: attributes [[NUW_RN]] = { nounwind readnone{{.*}} }
-// CHECK-NO-DAG: attributes [[NUW_RNI]] = { nocallback nofree nosync nounwind readnone speculatable willreturn }
+// CHECK-NO-DAG: attributes [[NUW_RN]] = { nounwind willreturn memory(none){{.*}} }
+// CHECK-NO-DAG: attributes [[NUW_RNI]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }

diff  --git a/clang/test/CodeGen/math-builtins.c b/clang/test/CodeGen/math-builtins.c
index 965ed77b54be3..559421a4882c5 100644
--- a/clang/test/CodeGen/math-builtins.c
+++ b/clang/test/CodeGen/math-builtins.c
@@ -680,16 +680,16 @@ __builtin_trunc(f);      __builtin_truncf(f);     __builtin_truncl(f); __builtin
 // HAS_ERRNO: declare fp128 @llvm.trunc.f128(fp128) [[READNONE_INTRINSIC]]
 };
 
-// NO__ERRNO: attributes [[READNONE]] = { {{.*}}readnone{{.*}} }
-// NO__ERRNO: attributes [[READNONE_INTRINSIC]] = { {{.*}}readnone{{.*}} }
+// NO__ERRNO: attributes [[READNONE]] = { {{.*}}memory(none){{.*}} }
+// NO__ERRNO: attributes [[READNONE_INTRINSIC]] = { {{.*}}memory(none){{.*}} }
 // NO__ERRNO: attributes [[NOT_READNONE]] = { nounwind {{.*}} }
-// NO__ERRNO: attributes [[PURE]] = { {{.*}}readonly{{.*}} }
+// NO__ERRNO: attributes [[PURE]] = { {{.*}}memory(read){{.*}} }
 
 // HAS_ERRNO: attributes [[NOT_READNONE]] = { nounwind {{.*}} }
-// HAS_ERRNO: attributes [[READNONE_INTRINSIC]] = { {{.*}}readnone{{.*}} }
-// HAS_ERRNO: attributes [[PURE]] = { {{.*}}readonly{{.*}} }
-// HAS_ERRNO: attributes [[READNONE]] = { {{.*}}readnone{{.*}} }
+// HAS_ERRNO: attributes [[READNONE_INTRINSIC]] = { {{.*}}memory(none){{.*}} }
+// HAS_ERRNO: attributes [[PURE]] = { {{.*}}memory(read){{.*}} }
+// HAS_ERRNO: attributes [[READNONE]] = { {{.*}}memory(none){{.*}} }
 
-// HAS_ERRNO_GNU: attributes [[READNONE_INTRINSIC]] = { {{.*}}readnone{{.*}} }
-// HAS_ERRNO_WIN: attributes [[READNONE_INTRINSIC]] = { {{.*}}readnone{{.*}} }
+// HAS_ERRNO_GNU: attributes [[READNONE_INTRINSIC]] = { {{.*}}memory(none){{.*}} }
+// HAS_ERRNO_WIN: attributes [[READNONE_INTRINSIC]] = { {{.*}}memory(none){{.*}} }
 

diff  --git a/clang/test/CodeGen/math-libcalls.c b/clang/test/CodeGen/math-libcalls.c
index 52a08d2652817..0e61f92f8c751 100644
--- a/clang/test/CodeGen/math-libcalls.c
+++ b/clang/test/CodeGen/math-libcalls.c
@@ -704,18 +704,18 @@ void foo(double *d, float f, float *fp, long double *l, int *i, const char *c) {
 // HAS_ERRNO: declare x86_fp80 @llvm.trunc.f80(x86_fp80) [[READNONE_INTRINSIC]]
 };
 
-// NO__ERRNO: attributes [[READNONE]] = { {{.*}}readnone{{.*}} }
-// NO__ERRNO: attributes [[READNONE_INTRINSIC]] = { {{.*}}readnone{{.*}} }
+// NO__ERRNO: attributes [[READNONE]] = { {{.*}}memory(none){{.*}} }
+// NO__ERRNO: attributes [[READNONE_INTRINSIC]] = { {{.*}}memory(none){{.*}} }
 // NO__ERRNO: attributes [[NOT_READNONE]] = { nounwind {{.*}} }
-// NO__ERRNO: attributes [[READONLY]] = { {{.*}}readonly{{.*}} }
+// NO__ERRNO: attributes [[READONLY]] = { {{.*}}memory(read){{.*}} }
 
 // HAS_ERRNO: attributes [[NOT_READNONE]] = { nounwind {{.*}} }
-// HAS_ERRNO: attributes [[READNONE_INTRINSIC]] = { {{.*}}readnone{{.*}} }
-// HAS_ERRNO: attributes [[READONLY]] = { {{.*}}readonly{{.*}} }
-// HAS_ERRNO: attributes [[READNONE]] = { {{.*}}readnone{{.*}} }
+// HAS_ERRNO: attributes [[READNONE_INTRINSIC]] = { {{.*}}memory(none){{.*}} }
+// HAS_ERRNO: attributes [[READONLY]] = { {{.*}}memory(read){{.*}} }
+// HAS_ERRNO: attributes [[READNONE]] = { {{.*}}memory(none){{.*}} }
 
 // HAS_MAYTRAP: attributes [[NOT_READNONE]] = { nounwind {{.*}} }
-// HAS_MAYTRAP: attributes [[READNONE]] = { {{.*}}readnone{{.*}} }
+// HAS_MAYTRAP: attributes [[READNONE]] = { {{.*}}memory(none){{.*}} }
 
-// HAS_ERRNO_GNU: attributes [[READNONE_INTRINSIC]] = { {{.*}}readnone{{.*}} }
-// HAS_ERRNO_WIN: attributes [[READNONE_INTRINSIC]] = { {{.*}}readnone{{.*}} }
+// HAS_ERRNO_GNU: attributes [[READNONE_INTRINSIC]] = { {{.*}}memory(none){{.*}} }
+// HAS_ERRNO_WIN: attributes [[READNONE_INTRINSIC]] = { {{.*}}memory(none){{.*}} }

diff  --git a/clang/test/CodeGen/ms-declspecs.c b/clang/test/CodeGen/ms-declspecs.c
index ff9a143f241ec..e390dddbe2b47 100644
--- a/clang/test/CodeGen/ms-declspecs.c
+++ b/clang/test/CodeGen/ms-declspecs.c
@@ -41,4 +41,4 @@ void noalias_caller(int *x) { noalias_callee(x); }
 // CHECK: attributes [[NUW]] = { nounwind{{.*}} }
 // CHECK: attributes [[NI]] = { noinline nounwind{{.*}} }
 // CHECK: attributes [[NR]] = { noreturn }
-// CHECK: attributes [[NA]] = { argmemonly nounwind{{.*}} }
+// CHECK: attributes [[NA]] = { nounwind memory(argmem: readwrite){{.*}} }

diff  --git a/clang/test/CodeGen/pragma-weak.c b/clang/test/CodeGen/pragma-weak.c
index 306ce306f4640..52328bf9ff1be 100644
--- a/clang/test/CodeGen/pragma-weak.c
+++ b/clang/test/CodeGen/pragma-weak.c
@@ -202,4 +202,4 @@ void zzz(void){}
 int correct_linkage;
 
 // CHECK: attributes [[NI]] = { noinline nounwind{{.*}} }
-// CHECK: attributes [[RN]] = { noinline nounwind optnone readnone{{.*}} }
+// CHECK: attributes [[RN]] = { noinline nounwind optnone willreturn memory(none){{.*}} }

diff  --git a/clang/test/CodeGen/struct-passing.c b/clang/test/CodeGen/struct-passing.c
index ad7b813320849..c8cfeb9c8168a 100644
--- a/clang/test/CodeGen/struct-passing.c
+++ b/clang/test/CodeGen/struct-passing.c
@@ -23,5 +23,5 @@ void *ps[] = { f0, f1, f2, f3, f4, f5 };
 // CHECK: declare void @f4({{.*}} byval({{.*}}) align 4)
 // CHECK: declare void @f5({{.*}} byval({{.*}}) align 4)
 
-// CHECK: attributes [[RN]] = { nounwind readnone{{.*}} }
-// CHECK: attributes [[RO]] = { nounwind readonly{{.*}} }
+// CHECK: attributes [[RN]] = { nounwind willreturn memory(none){{.*}} }
+// CHECK: attributes [[RO]] = { nounwind willreturn memory(read){{.*}} }

diff  --git a/clang/test/CodeGenCXX/2009-05-04-PureConstNounwind.cpp b/clang/test/CodeGenCXX/2009-05-04-PureConstNounwind.cpp
index 99d172239daa3..cf95b54fb8c07 100644
--- a/clang/test/CodeGenCXX/2009-05-04-PureConstNounwind.cpp
+++ b/clang/test/CodeGenCXX/2009-05-04-PureConstNounwind.cpp
@@ -15,8 +15,8 @@ int f(void) {
 // CHECK: declare noundef i32 @_Z1tv() [[TF2:#[0-9]+]]
 
 // CHECK: attributes [[TF]] = { {{.*}} }
-// CHECK: attributes [[NUW_RN]] = { nounwind readnone willreturn{{.*}} }
-// CHECK: attributes [[NUW_RO]] = { nounwind readonly willreturn{{.*}} }
+// CHECK: attributes [[NUW_RN]] = { nounwind willreturn memory(none){{.*}} }
+// CHECK: attributes [[NUW_RO]] = { nounwind willreturn memory(read){{.*}} }
 // CHECK: attributes [[TF2]] = { {{.*}} }
-// CHECK: attributes [[NUW_RN_CALL]] = { nounwind readnone willreturn }
-// CHECK: attributes [[NUW_RO_CALL]] = { nounwind readonly willreturn }
+// CHECK: attributes [[NUW_RN_CALL]] = { nounwind willreturn memory(none) }
+// CHECK: attributes [[NUW_RO_CALL]] = { nounwind willreturn memory(read) }

diff  --git a/clang/test/CodeGenCXX/dynamic-cast.cpp b/clang/test/CodeGenCXX/dynamic-cast.cpp
index 86e0f62bc9f98..1d36376a55bc7 100644
--- a/clang/test/CodeGenCXX/dynamic-cast.cpp
+++ b/clang/test/CodeGenCXX/dynamic-cast.cpp
@@ -20,5 +20,5 @@ const B& f(A *a) {
 
 // CHECK: declare ptr @__dynamic_cast(ptr, ptr, ptr, i64) [[NUW_RO:#[0-9]+]]
 
-// CHECK: attributes [[NUW_RO]] = { nounwind readonly }
+// CHECK: attributes [[NUW_RO]] = { nounwind memory(read) }
 // CHECK: attributes [[NR]] = { noreturn }

diff  --git a/clang/test/CodeGenCXX/threadlocal_address.cpp b/clang/test/CodeGenCXX/threadlocal_address.cpp
index cb63bc2759906..0ae58ab550029 100644
--- a/clang/test/CodeGenCXX/threadlocal_address.cpp
+++ b/clang/test/CodeGenCXX/threadlocal_address.cpp
@@ -51,4 +51,4 @@ int f() {
 // CHECK-O1-NEXT:   store i32 %[[INC]], ptr %[[J_ADDR]]
 // CHECK-O1-NEXT:   ret i32 %[[INC]]
 //
-// CHECK: attributes #[[ATTR_NUM]] = { nocallback nofree nosync nounwind readnone speculatable willreturn }
+// CHECK: attributes #[[ATTR_NUM]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }

diff  --git a/clang/test/CodeGenObjC/class-stubs.m b/clang/test/CodeGenObjC/class-stubs.m
index 5cd3d575596cb..d73b541dd97ba 100644
--- a/clang/test/CodeGenObjC/class-stubs.m
+++ b/clang/test/CodeGenObjC/class-stubs.m
@@ -81,4 +81,4 @@ - (void) anotherInstanceMethod {
 @end
 
 // -- calls to objc_loadClassRef() are readnone
-// CHECK: attributes [[ATTRLIST]] = { nounwind nonlazybind readnone }
+// CHECK: attributes [[ATTRLIST]] = { nounwind nonlazybind memory(none) }

diff  --git a/clang/test/CodeGenOpenCL/builtins-amdgcn.cl b/clang/test/CodeGenOpenCL/builtins-amdgcn.cl
index 9696f3536e2f6..600194e5e6c13 100644
--- a/clang/test/CodeGenOpenCL/builtins-amdgcn.cl
+++ b/clang/test/CodeGenOpenCL/builtins-amdgcn.cl
@@ -796,7 +796,7 @@ kernel void test_s_setreg(uint val) {
 
 // CHECK-DAG: [[$WI_RANGE]] = !{i32 0, i32 1024}
 // CHECK-DAG: [[$WS_RANGE]] = !{i16 1, i16 1025}
-// CHECK-DAG: attributes #[[$NOUNWIND_READONLY:[0-9]+]] = { nofree nounwind readonly }
+// CHECK-DAG: attributes #[[$NOUNWIND_READONLY:[0-9]+]] = { nofree nounwind memory(read) }
 // CHECK-DAG: attributes #[[$READ_EXEC_ATTRS]] = { convergent }
 // CHECK-DAG: ![[$EXEC]] = !{!"exec"}
 // CHECK-DAG: ![[$EXEC_LO]] = !{!"exec_lo"}

diff  --git a/clang/test/CodeGenOpenCL/fdeclare-opencl-builtins.cl b/clang/test/CodeGenOpenCL/fdeclare-opencl-builtins.cl
index f0ebf6e3c0eac..ac3bff9dbde27 100644
--- a/clang/test/CodeGenOpenCL/fdeclare-opencl-builtins.cl
+++ b/clang/test/CodeGenOpenCL/fdeclare-opencl-builtins.cl
@@ -49,6 +49,6 @@ void test_generic_optionality(float a, float *b) {
 }
 
 // CHECK: attributes [[ATTR_CONST]] =
-// CHECK-SAME: readnone
+// CHECK-SAME: memory(none)
 // CHECK: attributes [[ATTR_PURE]] =
-// CHECK-SAME: readonly
+// CHECK-SAME: memory(read)

diff  --git a/clang/test/OpenMP/barrier_codegen.cpp b/clang/test/OpenMP/barrier_codegen.cpp
index 0b2de036ce119..e06503077d66b 100644
--- a/clang/test/OpenMP/barrier_codegen.cpp
+++ b/clang/test/OpenMP/barrier_codegen.cpp
@@ -45,7 +45,7 @@ int main(int argc, char **argv) {
 // CLANGCG:            declare i32 @__kmpc_global_thread_num(ptr)
 // IRBUILDER:          ; Function Attrs: nounwind
 // IRBUILDER-NEXT:     declare i32 @__kmpc_global_thread_num(ptr) #
-// IRBUILDER_OPT:      ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly
+// IRBUILDER_OPT:      ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 // IRBUILDER_OPT-NEXT: declare i32 @__kmpc_global_thread_num(ptr nocapture nofree readonly) #
 
 // CHECK: define {{.+}} [[TMAIN_INT]](

diff  --git a/clang/test/OpenMP/irbuilder_simd_aligned.cpp b/clang/test/OpenMP/irbuilder_simd_aligned.cpp
index 6af2f7385e62e..e749cb9cfa778 100644
--- a/clang/test/OpenMP/irbuilder_simd_aligned.cpp
+++ b/clang/test/OpenMP/irbuilder_simd_aligned.cpp
@@ -164,7 +164,7 @@ void simple(float *a, float *b, int *c) {
 //.
 // CHECK: attributes #0 = { mustprogress noinline nounwind optnone "frame-pointer"="none" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-features"="+cx8,+mmx,+sse,+sse2,+x87" }
 // CHECK: attributes #1 = { noinline nounwind optnone "frame-pointer"="none" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-features"="+cx8,+mmx,+sse,+sse2,+x87" }
-// CHECK: attributes #2 = { inaccessiblememonly nocallback nofree nosync nounwind willreturn }
+// CHECK: attributes #2 = { nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite) }
 //.
 // CHECK: !0 = !{i32 1, !"wchar_size", i32 4}
 // CHECK: !1 = !{i32 7, !"openmp", i32 50}

diff  --git a/clang/test/Sema/libbuiltins-ctype-powerpc64.c b/clang/test/Sema/libbuiltins-ctype-powerpc64.c
index 6a5e6031c5ee2..fce9f5c0716e9 100644
--- a/clang/test/Sema/libbuiltins-ctype-powerpc64.c
+++ b/clang/test/Sema/libbuiltins-ctype-powerpc64.c
@@ -61,5 +61,5 @@ void test(int x) {
 // CHECK: declare signext i32 @tolower(i32 noundef signext) [[NUW_RO:#[0-9]+]]
 // CHECK: declare signext i32 @toupper(i32 noundef signext) [[NUW_RO:#[0-9]+]]
 
-// CHECK: attributes [[NUW_RO]] = { nounwind readonly{{.*}} }
-// CHECK: attributes [[NUW_RO_CALL]] = { nounwind readonly willreturn }
+// CHECK: attributes [[NUW_RO]] = { nounwind willreturn memory(read){{.*}} }
+// CHECK: attributes [[NUW_RO_CALL]] = { nounwind willreturn memory(read) }

diff  --git a/clang/test/Sema/libbuiltins-ctype-x86_64.c b/clang/test/Sema/libbuiltins-ctype-x86_64.c
index ed6e31e734343..0d182d7095aac 100644
--- a/clang/test/Sema/libbuiltins-ctype-x86_64.c
+++ b/clang/test/Sema/libbuiltins-ctype-x86_64.c
@@ -61,5 +61,5 @@ void test(int x) {
 // CHECK: declare i32 @tolower(i32 noundef) [[NUW_RO:#[0-9]+]]
 // CHECK: declare i32 @toupper(i32 noundef) [[NUW_RO:#[0-9]+]]
 
-// CHECK: attributes [[NUW_RO]] = { nounwind readonly{{.*}} }
-// CHECK: attributes [[NUW_RO_CALL]] = { nounwind readonly willreturn }
+// CHECK: attributes [[NUW_RO]] = { nounwind willreturn memory(read){{.*}} }
+// CHECK: attributes [[NUW_RO_CALL]] = { nounwind willreturn memory(read) }

diff  --git a/llvm/docs/LangRef.rst b/llvm/docs/LangRef.rst
index c7cfbf12eaa48..5d5916abbfef1 100644
--- a/llvm/docs/LangRef.rst
+++ b/llvm/docs/LangRef.rst
@@ -1414,6 +1414,30 @@ Currently, only the following parameter attributes are defined:
     same address may be returned), for a free-like function the
     pointer will always be invalidated.
 
+``readnone``
+    This attribute indicates that the function does not dereference that
+    pointer argument, even though it may read or write the memory that the
+    pointer points to if accessed through other pointers.
+
+    If a function reads from or writes to a readnone pointer argument, the
+    behavior is undefined.
+
+``readonly``
+    This attribute indicates that the function does not write through this
+    pointer argument, even though it may write to the memory that the pointer
+    points to.
+
+    If a function writes to a readonly pointer argument, the behavior is
+    undefined.
+
+``writeonly``
+    This attribute indicates that the function may write to, but does not read
+    through this pointer argument (even though it may read from the memory that
+    the pointer points to).
+
+    If a function reads from a writeonly pointer argument, the behavior is
+    undefined.
+
 .. _gc:
 
 Garbage Collector Strategy Names
@@ -1701,22 +1725,6 @@ example:
     the profile information. By marking a function ``hot``, users can work
     around the cases where the training input does not have good coverage
     on all the hot functions.
-``inaccessiblememonly``
-    This attribute indicates that the function may only access memory that
-    is not accessible by the module being compiled before return from the
-    function. This is a weaker form of ``readnone``. If the function reads
-    or writes other memory, the behavior is undefined.
-
-    For clarity, note that such functions are allowed to return new memory
-    which is ``noalias`` with respect to memory already accessible from
-    the module.  That is, a function can be both ``inaccessiblememonly`` and
-    have a ``noalias`` return which introduces a new, potentially initialized,
-    allocation.
-``inaccessiblemem_or_argmemonly``
-    This attribute indicates that the function may only access memory that is
-    either not accessible by the module being compiled, or is pointed to
-    by its pointer arguments. This is a weaker form of  ``argmemonly``. If the
-    function reads or writes other memory, the behavior is undefined.
 ``inlinehint``
     This attribute indicates that the source code contained a hint that
     inlining this function is desirable (such as the "inline" keyword in
@@ -1974,45 +1982,6 @@ example:
     function that has a ``"probe-stack"`` attribute is inlined into a
     function that has no ``"probe-stack"`` attribute at all, the resulting
     function has the ``"probe-stack"`` attribute of the callee.
-``readnone``
-    On a function, this attribute indicates that the function computes its
-    result (or decides to unwind an exception) based strictly on its arguments,
-    without dereferencing any pointer arguments or otherwise accessing
-    any mutable state (e.g. memory, control registers, etc) visible outside the
-    ``readnone`` function. It does not write through any pointer arguments
-    (including ``byval`` arguments) and never changes any state visible to
-    callers. This means while it cannot unwind exceptions by calling the ``C++``
-    exception throwing methods (since they write to memory), there may be
-    non-``C++`` mechanisms that throw exceptions without writing to LLVM visible
-    memory.
-
-    On an argument, this attribute indicates that the function does not
-    dereference that pointer argument, even though it may read or write the
-    memory that the pointer points to if accessed through other pointers.
-
-    If a readnone function reads or writes memory visible outside the function,
-    or has other side-effects, the behavior is undefined. If a
-    function reads from or writes to a readnone pointer argument, the behavior
-    is undefined.
-``readonly``
-    On a function, this attribute indicates that the function does not write
-    through any pointer arguments (including ``byval`` arguments) or otherwise
-    modify any state (e.g. memory, control registers, etc) visible outside the
-    ``readonly`` function. It may dereference pointer arguments and read
-    state that may be set in the caller. A readonly function always
-    returns the same value (or unwinds an exception identically) when
-    called with the same set of arguments and global state.  This means while it
-    cannot unwind exceptions by calling the ``C++`` exception throwing methods
-    (since they write to memory), there may be non-``C++`` mechanisms that throw
-    exceptions without writing to LLVM visible memory.
-
-    On an argument, this attribute indicates that the function does not write
-    through this pointer argument, even though it may write to the memory that
-    the pointer points to.
-
-    If a readonly function writes memory visible outside the function, or has
-    other side-effects, the behavior is undefined. If a function writes to a
-    readonly pointer argument, the behavior is undefined.
 ``"stack-probe-size"``
     This attribute controls the behavior of stack probes: either
     the ``"probe-stack"`` attribute, or ABI-required stack probes, if any.
@@ -2030,29 +1999,6 @@ example:
     of the callee.
 ``"no-stack-arg-probe"``
     This attribute disables ABI-required stack probes, if any.
-``writeonly``
-    On a function, this attribute indicates that the function may write to but
-    does not read from memory visible outside the ``writeonly`` function.
-
-    On an argument, this attribute indicates that the function may write to but
-    does not read through this pointer argument (even though it may read from
-    the memory that the pointer points to).
-
-    If a writeonly function reads memory visible outside the function or has
-    other side-effects, the behavior is undefined. If a function reads
-    from a writeonly pointer argument, the behavior is undefined.
-``argmemonly``
-    This attribute indicates that the only memory accesses inside function are
-    loads and stores from objects pointed to by its pointer-typed arguments,
-    with arbitrary offsets. Or in other words, all memory operations in the
-    function can refer to memory only using pointers based on its function
-    arguments.
-
-    Note that ``argmemonly`` can be used together with ``readonly`` attribute
-    in order to specify that function reads only from its arguments.
-
-    If an argmemonly function reads or writes memory other than the pointer
-    arguments, or has other side-effects, the behavior is undefined.
 ``returns_twice``
     This attribute indicates that this function can return twice. The C
     ``setjmp`` is an example of such a function. The compiler disables

diff  --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst
index d1a9cac4c31a4..465fdc329647d 100644
--- a/llvm/docs/ReleaseNotes.rst
+++ b/llvm/docs/ReleaseNotes.rst
@@ -67,6 +67,27 @@ and there is no way to suppress this error.
 Changes to the LLVM IR
 ----------------------
 
+* The ``readnone``, ``readonly``, ``writeonly``, ``argmemonly``,
+  ``inaccessiblememonly`` and ``inaccessiblemem_or_argmemonly`` function
+  attributes have been replaced by a single ``memory(...)`` attribute. The
+  old attributes may be mapped to the new one as follows:
+
+  * ``readnone`` -> ``memory(none)``
+  * ``readonly`` -> ``memory(read)``
+  * ``writeonly`` -> ``memory(write)``
+  * ``argmemonly`` -> ``memory(argmem: readwrite)``
+  * ``argmemonly readonly`` -> ``memory(argmem: read)``
+  * ``argmemonly writeonly`` -> ``memory(argmem: write)``
+  * ``inaccessiblememonly`` -> ``memory(inaccessiblemem: readwrite)``
+  * ``inaccessiblememonly readonly`` -> ``memory(inaccessiblemem: read)``
+  * ``inaccessiblememonly writeonly`` -> ``memory(inaccessiblemem: write)``
+  * ``inaccessiblemem_or_argmemonly`` ->
+    ``memory(argmem: readwrite, inaccessiblemem: readwrite)``
+  * ``inaccessiblemem_or_argmemonly readonly`` ->
+    ``memory(argmem: read, inaccessiblemem: read)``
+  * ``inaccessiblemem_or_argmemonly writeonly`` ->
+    ``memory(argmem: write, inaccessiblemem: write)``
+
 * The constant expression variants of the following instructions has been
   removed:
 

diff  --git a/llvm/include/llvm/AsmParser/LLToken.h b/llvm/include/llvm/AsmParser/LLToken.h
index 87df754968265..5fc192f145aaf 100644
--- a/llvm/include/llvm/AsmParser/LLToken.h
+++ b/llvm/include/llvm/AsmParser/LLToken.h
@@ -190,6 +190,11 @@ enum Kind {
   kw_argmem,
   kw_inaccessiblemem,
 
+  // Legacy memory attributes:
+  kw_argmemonly,
+  kw_inaccessiblememonly,
+  kw_inaccessiblemem_or_argmemonly,
+
   kw_type,
   kw_opaque,
 

diff  --git a/llvm/include/llvm/Frontend/OpenMP/OMPKinds.def b/llvm/include/llvm/Frontend/OpenMP/OMPKinds.def
index 71abc8822730a..03964af5893f0 100644
--- a/llvm/include/llvm/Frontend/OpenMP/OMPKinds.def
+++ b/llvm/include/llvm/Frontend/OpenMP/OMPKinds.def
@@ -487,6 +487,7 @@ __OMP_RTL(__last, false, Void, )
 #define EnumAttr(Kind) Attribute::get(Ctx, Attribute::AttrKind::Kind)
 #define EnumAttrInt(Kind, N) Attribute::get(Ctx, Attribute::AttrKind::Kind, N)
 #define AllocSizeAttr(N, M) Attribute::getWithAllocSizeArgs(Ctx, N, M)
+#define MemoryAttr(ME) Attribute::getWithMemoryEffects(Ctx, ME)
 #define AttributeSet(...)                                                      \
   AttributeSet::get(Ctx, ArrayRef<Attribute>({__VA_ARGS__}))
 
@@ -496,27 +497,29 @@ __OMP_RTL(__last, false, Void, )
 
 #define __OMP_ATTRS_SET(VarName, AttrSet) OMP_ATTRS_SET(VarName, AttrSet)
 
-__OMP_ATTRS_SET(GetterAttrs,
-                OptimisticAttributes
-                    ? AttributeSet(EnumAttr(NoUnwind), EnumAttr(ReadOnly),
-                                   EnumAttr(NoSync), EnumAttr(NoFree),
-                                   EnumAttr(InaccessibleMemOnly),
-                                   EnumAttr(WillReturn))
-                    : AttributeSet(EnumAttr(NoUnwind)))
-__OMP_ATTRS_SET(GetterArgWriteAttrs,
-                OptimisticAttributes
-                    ? AttributeSet(EnumAttr(NoUnwind), EnumAttr(NoSync),
-                                   EnumAttr(NoFree),
-                                   EnumAttr(InaccessibleMemOrArgMemOnly),
-                                   EnumAttr(WillReturn))
-                    : AttributeSet(EnumAttr(NoUnwind)))
-__OMP_ATTRS_SET(SetterAttrs,
-                OptimisticAttributes
-                    ? AttributeSet(EnumAttr(NoUnwind), EnumAttr(WriteOnly),
-                                   EnumAttr(NoSync), EnumAttr(NoFree),
-                                   EnumAttr(InaccessibleMemOnly),
-                                   EnumAttr(WillReturn))
-                    : AttributeSet(EnumAttr(NoUnwind)))
+__OMP_ATTRS_SET(
+    GetterAttrs,
+    OptimisticAttributes
+        ? AttributeSet(
+              EnumAttr(NoUnwind), EnumAttr(NoSync), EnumAttr(NoFree),
+              EnumAttr(WillReturn),
+              MemoryAttr(MemoryEffects::inaccessibleMemOnly(ModRefInfo::Ref)))
+        : AttributeSet(EnumAttr(NoUnwind)))
+__OMP_ATTRS_SET(
+    GetterArgWriteAttrs,
+    OptimisticAttributes
+        ? AttributeSet(EnumAttr(NoUnwind), EnumAttr(NoSync), EnumAttr(NoFree),
+                       EnumAttr(WillReturn),
+                       MemoryAttr(MemoryEffects::inaccessibleOrArgMemOnly()))
+        : AttributeSet(EnumAttr(NoUnwind)))
+__OMP_ATTRS_SET(
+  SetterAttrs,
+  OptimisticAttributes
+      ? AttributeSet(
+            EnumAttr(NoUnwind), EnumAttr(NoSync), EnumAttr(NoFree),
+            EnumAttr(WillReturn),
+            MemoryAttr(MemoryEffects::inaccessibleMemOnly(ModRefInfo::Mod)))
+      : AttributeSet(EnumAttr(NoUnwind)))
 
 __OMP_ATTRS_SET(DefaultAttrs,
                 OptimisticAttributes
@@ -529,12 +532,13 @@ __OMP_ATTRS_SET(BarrierAttrs,
                     ? AttributeSet(EnumAttr(NoUnwind), EnumAttr(Convergent))
                     : AttributeSet(EnumAttr(NoUnwind), EnumAttr(Convergent)))
 
-__OMP_ATTRS_SET(InaccessibleArgOnlyAttrs,
-                OptimisticAttributes
-                    ? AttributeSet(EnumAttr(NoUnwind), EnumAttr(NoSync),
-                                   EnumAttr(InaccessibleMemOrArgMemOnly),
-                                   EnumAttr(WillReturn), EnumAttr(NoFree))
-                    : AttributeSet(EnumAttr(NoUnwind)))
+__OMP_ATTRS_SET(
+    InaccessibleArgOnlyAttrs,
+    OptimisticAttributes
+         ? AttributeSet(EnumAttr(NoUnwind), EnumAttr(NoSync), EnumAttr(NoFree),
+                        EnumAttr(WillReturn),
+                        MemoryAttr(MemoryEffects::inaccessibleOrArgMemOnly()))
+         : AttributeSet(EnumAttr(NoUnwind)))
 
 __OMP_ATTRS_SET(AlwaysInlineAttrs,
                 OptimisticAttributes
@@ -542,12 +546,13 @@ __OMP_ATTRS_SET(AlwaysInlineAttrs,
                     : AttributeSet(EnumAttr(AlwaysInline)))
 
 #if 0
-__OMP_ATTRS_SET(InaccessibleOnlyAttrs,
-                OptimisticAttributes
-                    ? AttributeSet(EnumAttr(NoUnwind), EnumAttr(NoSync),
-                                   EnumAttr(InaccessibleMemOnly),
-                                   EnumAttr(WillReturn), EnumAttr(NoFree))
-                    : AttributeSet(EnumAttr(NoUnwind)))
+__OMP_ATTRS_SET(
+    InaccessibleOnlyAttrs,
+    OptimisticAttributes
+        ? AttributeSet(EnumAttr(NoUnwind), EnumAttr(NoSync), EnumAttr(NoFree),
+                       EnumAttr(WillReturn),
+                       MemoryAttr(MemoryEffects::inaccessibleMemOnly()))
+        : AttributeSet(EnumAttr(NoUnwind)))
 #endif
 
 __OMP_ATTRS_SET(AllocAttrs,

diff  --git a/llvm/include/llvm/IR/Attributes.td b/llvm/include/llvm/IR/Attributes.td
index 595c9197de1dd..75fe534ac61ea 100644
--- a/llvm/include/llvm/IR/Attributes.td
+++ b/llvm/include/llvm/IR/Attributes.td
@@ -64,9 +64,6 @@ def AllocSize : IntAttr<"allocsize", [FnAttr]>;
 /// inline=always.
 def AlwaysInline : EnumAttr<"alwaysinline", [FnAttr]>;
 
-/// Function can access memory only using pointers based on its arguments.
-def ArgMemOnly : EnumAttr<"argmemonly", [FnAttr]>;
-
 /// Callee is recognized as a builtin, despite nobuiltin attribute on its
 /// declaration.
 def Builtin : EnumAttr<"builtin", [FnAttr]>;
@@ -106,14 +103,6 @@ def ElementType : TypeAttr<"elementtype", [ParamAttr]>;
 /// symbol.
 def FnRetThunkExtern : EnumAttr<"fn_ret_thunk_extern", [FnAttr]>;
 
-/// Function may only access memory that is inaccessible from IR.
-def InaccessibleMemOnly : EnumAttr<"inaccessiblememonly", [FnAttr]>;
-
-/// Function may only access memory that is either inaccessible from the IR,
-/// or pointed to by its pointer arguments.
-def InaccessibleMemOrArgMemOnly : EnumAttr<"inaccessiblemem_or_argmemonly",
-                                           [FnAttr]>;
-
 /// Pass structure in an alloca.
 def InAlloca : TypeAttr<"inalloca", [ParamAttr]>;
 
@@ -218,10 +207,10 @@ def OptimizeNone : EnumAttr<"optnone", [FnAttr]>;
 def Preallocated : TypeAttr<"preallocated", [FnAttr, ParamAttr]>;
 
 /// Function does not access memory.
-def ReadNone : EnumAttr<"readnone", [FnAttr, ParamAttr]>;
+def ReadNone : EnumAttr<"readnone", [ParamAttr]>;
 
 /// Function only reads from memory.
-def ReadOnly : EnumAttr<"readonly", [FnAttr, ParamAttr]>;
+def ReadOnly : EnumAttr<"readonly", [ParamAttr]>;
 
 /// Return value is always equal to this argument.
 def Returned : EnumAttr<"returned", [ParamAttr]>;
@@ -306,7 +295,7 @@ def VScaleRange : IntAttr<"vscale_range", [FnAttr]>;
 def WillReturn : EnumAttr<"willreturn", [FnAttr]>;
 
 /// Function only writes to memory.
-def WriteOnly : EnumAttr<"writeonly", [FnAttr, ParamAttr]>;
+def WriteOnly : EnumAttr<"writeonly", [ParamAttr]>;
 
 /// Zero extended before/after call.
 def ZExt : EnumAttr<"zeroext", [ParamAttr, RetAttr]>;

diff  --git a/llvm/include/llvm/IR/Function.h b/llvm/include/llvm/IR/Function.h
index 7945c64c86103..22e98e91d4580 100644
--- a/llvm/include/llvm/IR/Function.h
+++ b/llvm/include/llvm/IR/Function.h
@@ -491,54 +491,35 @@ class LLVM_EXTERNAL_VISIBILITY Function : public GlobalObject,
   void setPresplitCoroutine() { addFnAttr(Attribute::PresplitCoroutine); }
   void setSplittedCoroutine() { removeFnAttr(Attribute::PresplitCoroutine); }
 
+  MemoryEffects getMemoryEffects() const;
+  void setMemoryEffects(MemoryEffects ME);
+
   /// Determine if the function does not access memory.
-  bool doesNotAccessMemory() const {
-    return hasFnAttribute(Attribute::ReadNone);
-  }
-  void setDoesNotAccessMemory() {
-    addFnAttr(Attribute::ReadNone);
-  }
+  bool doesNotAccessMemory() const;
+  void setDoesNotAccessMemory();
 
   /// Determine if the function does not access or only reads memory.
-  bool onlyReadsMemory() const {
-    return doesNotAccessMemory() || hasFnAttribute(Attribute::ReadOnly);
-  }
-  void setOnlyReadsMemory() {
-    addFnAttr(Attribute::ReadOnly);
-  }
+  bool onlyReadsMemory() const;
+  void setOnlyReadsMemory();
 
   /// Determine if the function does not access or only writes memory.
-  bool onlyWritesMemory() const {
-    return doesNotAccessMemory() || hasFnAttribute(Attribute::WriteOnly);
-  }
-  void setOnlyWritesMemory() {
-    addFnAttr(Attribute::WriteOnly);
-  }
+  bool onlyWritesMemory() const;
+  void setOnlyWritesMemory();
 
   /// Determine if the call can access memmory only using pointers based
   /// on its arguments.
-  bool onlyAccessesArgMemory() const {
-    return hasFnAttribute(Attribute::ArgMemOnly);
-  }
-  void setOnlyAccessesArgMemory() { addFnAttr(Attribute::ArgMemOnly); }
+  bool onlyAccessesArgMemory() const;
+  void setOnlyAccessesArgMemory();
 
   /// Determine if the function may only access memory that is
   ///  inaccessible from the IR.
-  bool onlyAccessesInaccessibleMemory() const {
-    return hasFnAttribute(Attribute::InaccessibleMemOnly);
-  }
-  void setOnlyAccessesInaccessibleMemory() {
-    addFnAttr(Attribute::InaccessibleMemOnly);
-  }
+  bool onlyAccessesInaccessibleMemory() const;
+  void setOnlyAccessesInaccessibleMemory();
 
   /// Determine if the function may only access memory that is
   ///  either inaccessible from the IR or pointed to by its arguments.
-  bool onlyAccessesInaccessibleMemOrArgMem() const {
-    return hasFnAttribute(Attribute::InaccessibleMemOrArgMemOnly);
-  }
-  void setOnlyAccessesInaccessibleMemOrArgMem() {
-    addFnAttr(Attribute::InaccessibleMemOrArgMemOnly);
-  }
+  bool onlyAccessesInaccessibleMemOrArgMem() const;
+  void setOnlyAccessesInaccessibleMemOrArgMem();
 
   /// Determine if the function cannot return.
   bool doesNotReturn() const {

diff  --git a/llvm/include/llvm/IR/InstrTypes.h b/llvm/include/llvm/IR/InstrTypes.h
index 60390b18632ea..da081d0c40711 100644
--- a/llvm/include/llvm/IR/InstrTypes.h
+++ b/llvm/include/llvm/IR/InstrTypes.h
@@ -1847,47 +1847,37 @@ class CallBase : public Instruction {
   /// Return true if the call should not be inlined.
   bool isNoInline() const { return hasFnAttr(Attribute::NoInline); }
   void setIsNoInline() { addFnAttr(Attribute::NoInline); }
+
+  MemoryEffects getMemoryEffects() const;
+  void setMemoryEffects(MemoryEffects ME);
+
   /// Determine if the call does not access memory.
-  bool doesNotAccessMemory() const { return hasFnAttr(Attribute::ReadNone); }
-  void setDoesNotAccessMemory() { addFnAttr(Attribute::ReadNone); }
+  bool doesNotAccessMemory() const;
+  void setDoesNotAccessMemory();
 
   /// Determine if the call does not access or only reads memory.
-  bool onlyReadsMemory() const {
-    return hasImpliedFnAttr(Attribute::ReadOnly);
-  }
-
-  void setOnlyReadsMemory() { addFnAttr(Attribute::ReadOnly); }
+  bool onlyReadsMemory() const;
+  void setOnlyReadsMemory();
 
   /// Determine if the call does not access or only writes memory.
-  bool onlyWritesMemory() const {
-    return hasImpliedFnAttr(Attribute::WriteOnly);
-  }
-  void setOnlyWritesMemory() { addFnAttr(Attribute::WriteOnly); }
+  bool onlyWritesMemory() const;
+  void setOnlyWritesMemory();
 
   /// Determine if the call can access memmory only using pointers based
   /// on its arguments.
-  bool onlyAccessesArgMemory() const {
-    return hasFnAttr(Attribute::ArgMemOnly);
-  }
-  void setOnlyAccessesArgMemory() { addFnAttr(Attribute::ArgMemOnly); }
+  bool onlyAccessesArgMemory() const;
+  void setOnlyAccessesArgMemory();
 
   /// Determine if the function may only access memory that is
   /// inaccessible from the IR.
-  bool onlyAccessesInaccessibleMemory() const {
-    return hasFnAttr(Attribute::InaccessibleMemOnly);
-  }
-  void setOnlyAccessesInaccessibleMemory() {
-    addFnAttr(Attribute::InaccessibleMemOnly);
-  }
+  bool onlyAccessesInaccessibleMemory() const;
+  void setOnlyAccessesInaccessibleMemory();
 
   /// Determine if the function may only access memory that is
   /// either inaccessible from the IR or pointed to by its arguments.
-  bool onlyAccessesInaccessibleMemOrArgMem() const {
-    return hasFnAttr(Attribute::InaccessibleMemOrArgMemOnly);
-  }
-  void setOnlyAccessesInaccessibleMemOrArgMem() {
-    addFnAttr(Attribute::InaccessibleMemOrArgMemOnly);
-  }
+  bool onlyAccessesInaccessibleMemOrArgMem() const;
+  void setOnlyAccessesInaccessibleMemOrArgMem();
+
   /// Determine if the call cannot return.
   bool doesNotReturn() const { return hasFnAttr(Attribute::NoReturn); }
   void setDoesNotReturn() { addFnAttr(Attribute::NoReturn); }
@@ -2107,43 +2097,6 @@ class CallBase : public Instruction {
     return false;
   }
 
-  /// Is the function attribute S disallowed by some operand bundle on
-  /// this operand bundle user?
-  bool isFnAttrDisallowedByOpBundle(StringRef S) const {
-    // Operand bundles only possibly disallow memory access attributes.  All
-    // String attributes are fine.
-    return false;
-  }
-
-  /// Is the function attribute A disallowed by some operand bundle on
-  /// this operand bundle user?
-  bool isFnAttrDisallowedByOpBundle(Attribute::AttrKind A) const {
-    switch (A) {
-    default:
-      return false;
-
-    case Attribute::InaccessibleMemOrArgMemOnly:
-      return hasReadingOperandBundles();
-
-    case Attribute::InaccessibleMemOnly:
-      return hasReadingOperandBundles();
-
-    case Attribute::ArgMemOnly:
-      return hasReadingOperandBundles();
-
-    case Attribute::ReadNone:
-      return hasReadingOperandBundles();
-
-    case Attribute::ReadOnly:
-      return hasClobberingOperandBundles();
-
-    case Attribute::WriteOnly:
-      return hasReadingOperandBundles();
-    }
-
-    llvm_unreachable("switch has a default case!");
-  }
-
   /// Used to keep track of an operand bundle.  See the main comment on
   /// OperandBundleUser above.
   struct BundleOpInfo {
@@ -2303,35 +2256,10 @@ class CallBase : public Instruction {
     if (Attrs.hasFnAttr(Kind))
       return true;
 
-    // Operand bundles override attributes on the called function, but don't
-    // override attributes directly present on the call instruction.
-    if (isFnAttrDisallowedByOpBundle(Kind))
-      return false;
-
     return hasFnAttrOnCalledFunction(Kind);
   }
   template <typename AK> Attribute getFnAttrOnCalledFunction(AK Kind) const;
 
-  /// A specialized version of hasFnAttrImpl for when the caller wants to
-  /// know if an attribute's semantics are implied, not whether the attribute
-  /// is actually present.  This distinction only exists when checking whether
-  /// something is readonly or writeonly since readnone implies both.  The case
-  /// which motivates the specialized code is a callee with readnone, and an
-  /// operand bundle on the call which disallows readnone but not either
-  /// readonly or writeonly.
-  bool hasImpliedFnAttr(Attribute::AttrKind Kind) const {
-    assert((Kind == Attribute::ReadOnly || Kind == Attribute::WriteOnly) &&
-           "use hasFnAttrImpl instead");
-    if (Attrs.hasFnAttr(Kind) || Attrs.hasFnAttr(Attribute::ReadNone))
-      return true;
-
-    if (isFnAttrDisallowedByOpBundle(Kind))
-      return false;
-
-    return hasFnAttrOnCalledFunction(Kind) ||
-      hasFnAttrOnCalledFunction(Attribute::ReadNone);
-  }
-
   /// Determine whether the return value has the given attribute. Supports
   /// Attribute::AttrKind and StringRef as \p AttrKind types.
   template <typename AttrKind> bool hasRetAttrImpl(AttrKind Kind) const {

diff  --git a/llvm/lib/Analysis/BasicAliasAnalysis.cpp b/llvm/lib/Analysis/BasicAliasAnalysis.cpp
index 2bbc2486fec00..30dab43101dea 100644
--- a/llvm/lib/Analysis/BasicAliasAnalysis.cpp
+++ b/llvm/lib/Analysis/BasicAliasAnalysis.cpp
@@ -752,30 +752,10 @@ static bool isIntrinsicCall(const CallBase *Call, Intrinsic::ID IID) {
   return II && II->getIntrinsicID() == IID;
 }
 
-static MemoryEffects getMemoryEffectsFromAttrs(AttributeSet Attrs) {
-  if (Attrs.hasAttribute(Attribute::ReadNone))
-    return MemoryEffects::none();
-
-  ModRefInfo MR = ModRefInfo::ModRef;
-  if (Attrs.hasAttribute(Attribute::ReadOnly))
-    MR = ModRefInfo::Ref;
-  else if (Attrs.hasAttribute(Attribute::WriteOnly))
-    MR = ModRefInfo::Mod;
-
-  if (Attrs.hasAttribute(Attribute::ArgMemOnly))
-    return MemoryEffects::argMemOnly(MR);
-  if (Attrs.hasAttribute(Attribute::InaccessibleMemOnly))
-    return MemoryEffects::inaccessibleMemOnly(MR);
-  if (Attrs.hasAttribute(Attribute::InaccessibleMemOrArgMemOnly))
-    return MemoryEffects::inaccessibleOrArgMemOnly(MR);
-  return MemoryEffects(MR);
-}
-
 /// Returns the behavior when calling the given call site.
 MemoryEffects BasicAAResult::getMemoryEffects(const CallBase *Call,
                                               AAQueryInfo &AAQI) {
-  MemoryEffects Min =
-      getMemoryEffectsFromAttrs(Call->getAttributes().getFnAttrs());
+  MemoryEffects Min = Call->getAttributes().getMemoryEffects();
 
   if (const Function *F = dyn_cast<Function>(Call->getCalledOperand())) {
     MemoryEffects FuncME = AAQI.AAR.getMemoryEffects(F);
@@ -803,7 +783,7 @@ MemoryEffects BasicAAResult::getMemoryEffects(const Function *F) {
            MemoryEffects::inaccessibleMemOnly(ModRefInfo::ModRef);
   }
 
-  return getMemoryEffectsFromAttrs(F->getAttributes().getFnAttrs());
+  return F->getMemoryEffects();
 }
 
 ModRefInfo BasicAAResult::getArgModRefInfo(const CallBase *Call,

diff  --git a/llvm/lib/AsmParser/LLLexer.cpp b/llvm/lib/AsmParser/LLLexer.cpp
index 496f1ed435663..2a171df168fca 100644
--- a/llvm/lib/AsmParser/LLLexer.cpp
+++ b/llvm/lib/AsmParser/LLLexer.cpp
@@ -649,6 +649,9 @@ lltok::Kind LLLexer::LexIdentifier() {
   KEYWORD(readwrite);
   KEYWORD(argmem);
   KEYWORD(inaccessiblemem);
+  KEYWORD(argmemonly);
+  KEYWORD(inaccessiblememonly);
+  KEYWORD(inaccessiblemem_or_argmemonly);
 
   KEYWORD(type);
   KEYWORD(opaque);

diff  --git a/llvm/lib/AsmParser/LLParser.cpp b/llvm/lib/AsmParser/LLParser.cpp
index 0fda0559b5b41..8767da472ed60 100644
--- a/llvm/lib/AsmParser/LLParser.cpp
+++ b/llvm/lib/AsmParser/LLParser.cpp
@@ -1472,6 +1472,31 @@ bool LLParser::parseEnumAttribute(Attribute::AttrKind Attr, AttrBuilder &B,
   }
 }
 
+static bool upgradeMemoryAttr(MemoryEffects &ME, lltok::Kind Kind) {
+  switch (Kind) {
+  case lltok::kw_readnone:
+    ME &= MemoryEffects::none();
+    return true;
+  case lltok::kw_readonly:
+    ME &= MemoryEffects::readOnly();
+    return true;
+  case lltok::kw_writeonly:
+    ME &= MemoryEffects::writeOnly();
+    return true;
+  case lltok::kw_argmemonly:
+    ME &= MemoryEffects::argMemOnly();
+    return true;
+  case lltok::kw_inaccessiblememonly:
+    ME &= MemoryEffects::inaccessibleMemOnly();
+    return true;
+  case lltok::kw_inaccessiblemem_or_argmemonly:
+    ME &= MemoryEffects::inaccessibleOrArgMemOnly();
+    return true;
+  default:
+    return false;
+  }
+}
+
 /// parseFnAttributeValuePairs
 ///   ::= <attr> | <attr> '=' <value>
 bool LLParser::parseFnAttributeValuePairs(AttrBuilder &B,
@@ -1481,10 +1506,11 @@ bool LLParser::parseFnAttributeValuePairs(AttrBuilder &B,
 
   B.clear();
 
+  MemoryEffects ME = MemoryEffects::unknown();
   while (true) {
     lltok::Kind Token = Lex.getKind();
     if (Token == lltok::rbrace)
-      return HaveError; // Finished.
+      break; // Finished.
 
     if (Token == lltok::StringConstant) {
       if (parseStringAttribute(B))
@@ -1512,10 +1538,15 @@ bool LLParser::parseFnAttributeValuePairs(AttrBuilder &B,
     if (Token == lltok::kw_builtin)
       BuiltinLoc = Loc;
 
+    if (upgradeMemoryAttr(ME, Token)) {
+      Lex.Lex();
+      continue;
+    }
+
     Attribute::AttrKind Attr = tokenToAttribute(Token);
     if (Attr == Attribute::None) {
       if (!InAttrGrp)
-        return HaveError;
+        break;
       return error(Lex.getLoc(), "unterminated attribute group");
     }
 
@@ -1528,6 +1559,10 @@ bool LLParser::parseFnAttributeValuePairs(AttrBuilder &B,
     if (!Attribute::canUseAsFnAttr(Attr) && Attr != Attribute::Alignment)
       HaveError |= error(Loc, "this attribute does not apply to functions");
   }
+
+  if (ME != MemoryEffects::unknown())
+    B.addMemoryAttr(ME);
+  return HaveError;
 }
 
 //===----------------------------------------------------------------------===//

diff  --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
index 338674c086356..66b4edbacde72 100644
--- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -1718,8 +1718,8 @@ static uint64_t getRawAttributeMask(Attribute::AttrKind Val) {
   case Attribute::Convergent:      return 1ULL << 46;
   case Attribute::SafeStack:       return 1ULL << 47;
   case Attribute::NoRecurse:       return 1ULL << 48;
-  case Attribute::InaccessibleMemOnly:         return 1ULL << 49;
-  case Attribute::InaccessibleMemOrArgMemOnly: return 1ULL << 50;
+  // 1ULL << 49 is InaccessibleMemOnly, which is upgraded separately.
+  // 1ULL << 50 is InaccessibleMemOrArgMemOnly, which is upgraded separately.
   case Attribute::SwiftSelf:       return 1ULL << 51;
   case Attribute::SwiftError:      return 1ULL << 52;
   case Attribute::WriteOnly:       return 1ULL << 53;
@@ -1767,7 +1767,8 @@ static void addRawAttributeValue(AttrBuilder &B, uint64_t Val) {
 /// been decoded from the given integer. This function must stay in sync with
 /// 'encodeLLVMAttributesForBitcode'.
 static void decodeLLVMAttributesForBitcode(AttrBuilder &B,
-                                           uint64_t EncodedAttrs) {
+                                           uint64_t EncodedAttrs,
+                                           uint64_t AttrIdx) {
   // The alignment is stored as a 16-bit raw value from bits 31--16.  We shift
   // the bits above 31 down by 11 bits.
   unsigned Alignment = (EncodedAttrs & (0xffffULL << 16)) >> 16;
@@ -1776,8 +1777,43 @@ static void decodeLLVMAttributesForBitcode(AttrBuilder &B,
 
   if (Alignment)
     B.addAlignmentAttr(Alignment);
-  addRawAttributeValue(B, ((EncodedAttrs & (0xfffffULL << 32)) >> 11) |
-                          (EncodedAttrs & 0xffff));
+
+  uint64_t Attrs = ((EncodedAttrs & (0xfffffULL << 32)) >> 11) |
+                   (EncodedAttrs & 0xffff);
+
+  if (AttrIdx == AttributeList::FunctionIndex) {
+    // Upgrade old memory attributes.
+    MemoryEffects ME = MemoryEffects::unknown();
+    if (Attrs & (1ULL << 9)) {
+      // ReadNone
+      Attrs &= ~(1ULL << 9);
+      ME &= MemoryEffects::none();
+    }
+    if (Attrs & (1ULL << 10)) {
+      // ReadOnly
+      Attrs &= ~(1ULL << 10);
+      ME &= MemoryEffects::readOnly();
+    }
+    if (Attrs & (1ULL << 49)) {
+      // InaccessibleMemOnly
+      Attrs &= ~(1ULL << 49);
+      ME &= MemoryEffects::inaccessibleMemOnly();
+    }
+    if (Attrs & (1ULL << 50)) {
+      // InaccessibleMemOrArgMemOnly
+      Attrs &= ~(1ULL << 50);
+      ME &= MemoryEffects::inaccessibleOrArgMemOnly();
+    }
+    if (Attrs & (1ULL << 53)) {
+      // WriteOnly
+      Attrs &= ~(1ULL << 53);
+      ME &= MemoryEffects::writeOnly();
+    }
+    if (ME != MemoryEffects::unknown())
+      B.addMemoryAttr(ME);
+  }
+
+  addRawAttributeValue(B, Attrs);
 }
 
 Error BitcodeReader::parseAttributeBlock() {
@@ -1824,7 +1860,7 @@ Error BitcodeReader::parseAttributeBlock() {
 
       for (unsigned i = 0, e = Record.size(); i != e; i += 2) {
         AttrBuilder B(Context);
-        decodeLLVMAttributesForBitcode(B, Record[i+1]);
+        decodeLLVMAttributesForBitcode(B, Record[i+1], Record[i]);
         Attrs.push_back(AttributeList::get(Context, Record[i], B));
       }
 
@@ -1851,8 +1887,6 @@ static Attribute::AttrKind getAttrFromCode(uint64_t Code) {
     return Attribute::Alignment;
   case bitc::ATTR_KIND_ALWAYS_INLINE:
     return Attribute::AlwaysInline;
-  case bitc::ATTR_KIND_ARGMEMONLY:
-    return Attribute::ArgMemOnly;
   case bitc::ATTR_KIND_BUILTIN:
     return Attribute::Builtin;
   case bitc::ATTR_KIND_BY_VAL:
@@ -1869,10 +1903,6 @@ static Attribute::AttrKind getAttrFromCode(uint64_t Code) {
     return Attribute::ElementType;
   case bitc::ATTR_KIND_FNRETTHUNK_EXTERN:
     return Attribute::FnRetThunkExtern;
-  case bitc::ATTR_KIND_INACCESSIBLEMEM_ONLY:
-    return Attribute::InaccessibleMemOnly;
-  case bitc::ATTR_KIND_INACCESSIBLEMEM_OR_ARGMEMONLY:
-    return Attribute::InaccessibleMemOrArgMemOnly;
   case bitc::ATTR_KIND_INLINE_HINT:
     return Attribute::InlineHint;
   case bitc::ATTR_KIND_IN_REG:
@@ -2039,6 +2069,31 @@ Error BitcodeReader::parseAttrKind(uint64_t Code, Attribute::AttrKind *Kind) {
   return Error::success();
 }
 
+static bool upgradeOldMemoryAttribute(MemoryEffects &ME, uint64_t EncodedKind) {
+  switch (EncodedKind) {
+  case bitc::ATTR_KIND_READ_NONE:
+    ME &= MemoryEffects::none();
+    return true;
+  case bitc::ATTR_KIND_READ_ONLY:
+    ME &= MemoryEffects::readOnly();
+    return true;
+  case bitc::ATTR_KIND_WRITEONLY:
+    ME &= MemoryEffects::writeOnly();
+    return true;
+  case bitc::ATTR_KIND_ARGMEMONLY:
+    ME &= MemoryEffects::argMemOnly();
+    return true;
+  case bitc::ATTR_KIND_INACCESSIBLEMEM_ONLY:
+    ME &= MemoryEffects::inaccessibleMemOnly();
+    return true;
+  case bitc::ATTR_KIND_INACCESSIBLEMEM_OR_ARGMEMONLY:
+    ME &= MemoryEffects::inaccessibleOrArgMemOnly();
+    return true;
+  default:
+    return false;
+  }
+}
+
 Error BitcodeReader::parseAttributeGroupBlock() {
   if (Error Err = Stream.EnterSubBlock(bitc::PARAMATTR_GROUP_BLOCK_ID))
     return Err;
@@ -2082,10 +2137,16 @@ Error BitcodeReader::parseAttributeGroupBlock() {
       uint64_t Idx = Record[1]; // Index of the object this attribute refers to.
 
       AttrBuilder B(Context);
+      MemoryEffects ME = MemoryEffects::unknown();
       for (unsigned i = 2, e = Record.size(); i != e; ++i) {
         if (Record[i] == 0) {        // Enum attribute
           Attribute::AttrKind Kind;
-          if (Error Err = parseAttrKind(Record[++i], &Kind))
+          uint64_t EncodedKind = Record[++i];
+          if (Idx == AttributeList::FunctionIndex &&
+              upgradeOldMemoryAttribute(ME, EncodedKind))
+            continue;
+
+          if (Error Err = parseAttrKind(EncodedKind, &Kind))
             return Err;
 
           // Upgrade old-style byval attribute to one with a type, even if it's
@@ -2159,6 +2220,9 @@ Error BitcodeReader::parseAttributeGroupBlock() {
         }
       }
 
+      if (ME != MemoryEffects::unknown())
+        B.addMemoryAttr(ME);
+
       UpgradeAttributes(B);
       MAttributeGroups[GrpID] = AttributeList::get(Context, Idx, B);
       break;

diff  --git a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
index 1ac4413f158eb..85ada2c6b52ef 100644
--- a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -620,8 +620,6 @@ static uint64_t getAttrKindEncoding(Attribute::AttrKind Kind) {
     return bitc::ATTR_KIND_ALLOC_SIZE;
   case Attribute::AlwaysInline:
     return bitc::ATTR_KIND_ALWAYS_INLINE;
-  case Attribute::ArgMemOnly:
-    return bitc::ATTR_KIND_ARGMEMONLY;
   case Attribute::Builtin:
     return bitc::ATTR_KIND_BUILTIN;
   case Attribute::ByVal:
@@ -640,10 +638,6 @@ static uint64_t getAttrKindEncoding(Attribute::AttrKind Kind) {
     return bitc::ATTR_KIND_HOT;
   case Attribute::ElementType:
     return bitc::ATTR_KIND_ELEMENTTYPE;
-  case Attribute::InaccessibleMemOnly:
-    return bitc::ATTR_KIND_INACCESSIBLEMEM_ONLY;
-  case Attribute::InaccessibleMemOrArgMemOnly:
-    return bitc::ATTR_KIND_INACCESSIBLEMEM_OR_ARGMEMONLY;
   case Attribute::InlineHint:
     return bitc::ATTR_KIND_INLINE_HINT;
   case Attribute::InReg:

diff  --git a/llvm/lib/CodeGen/MachineVerifier.cpp b/llvm/lib/CodeGen/MachineVerifier.cpp
index 6ef36d86891a1..74e4ad0562b4d 100644
--- a/llvm/lib/CodeGen/MachineVerifier.cpp
+++ b/llvm/lib/CodeGen/MachineVerifier.cpp
@@ -61,6 +61,7 @@
 #include "llvm/IR/Function.h"
 #include "llvm/IR/InlineAsm.h"
 #include "llvm/IR/Instructions.h"
+#include "llvm/IR/ModRef.h"
 #include "llvm/InitializePasses.h"
 #include "llvm/MC/LaneBitmask.h"
 #include "llvm/MC/MCAsmInfo.h"
@@ -1474,10 +1475,9 @@ void MachineVerifier::verifyPreISelGenericInstruction(const MachineInstr *MI) {
     bool NoSideEffects = MI->getOpcode() == TargetOpcode::G_INTRINSIC;
     unsigned IntrID = IntrIDOp.getIntrinsicID();
     if (IntrID != 0 && IntrID < Intrinsic::num_intrinsics) {
-      AttributeList Attrs
-        = Intrinsic::getAttributes(MF->getFunction().getContext(),
-                                   static_cast<Intrinsic::ID>(IntrID));
-      bool DeclHasSideEffects = !Attrs.hasFnAttr(Attribute::ReadNone);
+      AttributeList Attrs = Intrinsic::getAttributes(
+          MF->getFunction().getContext(), static_cast<Intrinsic::ID>(IntrID));
+      bool DeclHasSideEffects = !Attrs.getMemoryEffects().doesNotAccessMemory();
       if (NoSideEffects && DeclHasSideEffects) {
         report("G_INTRINSIC used with intrinsic that accesses memory", MI);
         break;

diff  --git a/llvm/lib/IR/Function.cpp b/llvm/lib/IR/Function.cpp
index 66f7f84b2267c..ab6624ef5f3d7 100644
--- a/llvm/lib/IR/Function.cpp
+++ b/llvm/lib/IR/Function.cpp
@@ -51,6 +51,7 @@
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/MDBuilder.h"
 #include "llvm/IR/Metadata.h"
+#include "llvm/IR/ModRef.h"
 #include "llvm/IR/Module.h"
 #include "llvm/IR/Operator.h"
 #include "llvm/IR/SymbolTableListTraits.h"
@@ -727,6 +728,65 @@ void Function::copyAttributesFrom(const Function *Src) {
     setPrologueData(Src->getPrologueData());
 }
 
+MemoryEffects Function::getMemoryEffects() const {
+  return getAttributes().getMemoryEffects();
+}
+void Function::setMemoryEffects(MemoryEffects ME) {
+  addFnAttr(Attribute::getWithMemoryEffects(getContext(), ME));
+}
+
+/// Determine if the function does not access memory.
+bool Function::doesNotAccessMemory() const {
+  return getMemoryEffects().doesNotAccessMemory();
+}
+void Function::setDoesNotAccessMemory() {
+  setMemoryEffects(MemoryEffects::none());
+}
+
+/// Determine if the function does not access or only reads memory.
+bool Function::onlyReadsMemory() const {
+  return getMemoryEffects().onlyReadsMemory();
+}
+void Function::setOnlyReadsMemory() {
+  setMemoryEffects(getMemoryEffects() & MemoryEffects::readOnly());
+}
+
+/// Determine if the function does not access or only writes memory.
+bool Function::onlyWritesMemory() const {
+  return getMemoryEffects().onlyWritesMemory();
+}
+void Function::setOnlyWritesMemory() {
+  setMemoryEffects(getMemoryEffects() & MemoryEffects::writeOnly());
+}
+
+/// Determine if the call can access memmory only using pointers based
+/// on its arguments.
+bool Function::onlyAccessesArgMemory() const {
+  return getMemoryEffects().onlyAccessesArgPointees();
+}
+void Function::setOnlyAccessesArgMemory() {
+  setMemoryEffects(getMemoryEffects() & MemoryEffects::argMemOnly());
+}
+
+/// Determine if the function may only access memory that is
+///  inaccessible from the IR.
+bool Function::onlyAccessesInaccessibleMemory() const {
+  return getMemoryEffects().onlyAccessesInaccessibleMem();
+}
+void Function::setOnlyAccessesInaccessibleMemory() {
+  setMemoryEffects(getMemoryEffects() & MemoryEffects::inaccessibleMemOnly());
+}
+
+/// Determine if the function may only access memory that is
+///  either inaccessible from the IR or pointed to by its arguments.
+bool Function::onlyAccessesInaccessibleMemOrArgMem() const {
+  return getMemoryEffects().onlyAccessesInaccessibleOrArgMem();
+}
+void Function::setOnlyAccessesInaccessibleMemOrArgMem() {
+  setMemoryEffects(getMemoryEffects() &
+                   MemoryEffects::inaccessibleOrArgMemOnly());
+}
+
 /// Table of string intrinsic names indexed by enum value.
 static const char * const IntrinsicNameTable[] = {
   "not_intrinsic",

diff  --git a/llvm/lib/IR/Instructions.cpp b/llvm/lib/IR/Instructions.cpp
index 8682a938d78c4..05e225dd64cfa 100644
--- a/llvm/lib/IR/Instructions.cpp
+++ b/llvm/lib/IR/Instructions.cpp
@@ -30,6 +30,7 @@
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/MDBuilder.h"
 #include "llvm/IR/Metadata.h"
+#include "llvm/IR/ModRef.h"
 #include "llvm/IR/Module.h"
 #include "llvm/IR/Operator.h"
 #include "llvm/IR/Type.h"
@@ -391,10 +392,12 @@ bool CallBase::hasFnAttrOnCalledFunction(StringRef Kind) const {
 
 template <typename AK>
 Attribute CallBase::getFnAttrOnCalledFunction(AK Kind) const {
-  // Operand bundles override attributes on the called function, but don't
-  // override attributes directly present on the call instruction.
-  if (isFnAttrDisallowedByOpBundle(Kind))
-    return Attribute();
+  if constexpr (std::is_same_v<AK, Attribute::AttrKind>) {
+    // getMemoryEffects() correctly combines memory effects from the call-site,
+    // operand bundles and function.
+    assert(Kind != Attribute::Memory && "Use getMemoryEffects() instead");
+  }
+
   Value *V = getCalledOperand();
   if (auto *CE = dyn_cast<ConstantExpr>(V))
     if (CE->getOpcode() == BitCast)
@@ -534,6 +537,77 @@ bool CallBase::hasClobberingOperandBundles() const {
          getIntrinsicID() != Intrinsic::assume;
 }
 
+MemoryEffects CallBase::getMemoryEffects() const {
+  MemoryEffects ME = getAttributes().getMemoryEffects();
+  if (auto *Fn = dyn_cast<Function>(getCalledOperand())) {
+    MemoryEffects FnME = Fn->getMemoryEffects();
+    if (hasOperandBundles()) {
+      // TODO: Add a method to get memory effects for operand bundles instead.
+      if (hasReadingOperandBundles())
+        FnME |= MemoryEffects::readOnly();
+      if (hasClobberingOperandBundles())
+        FnME |= MemoryEffects::writeOnly();
+    }
+    ME &= FnME;
+  }
+  return ME;
+}
+void CallBase::setMemoryEffects(MemoryEffects ME) {
+  addFnAttr(Attribute::getWithMemoryEffects(getContext(), ME));
+}
+
+/// Determine if the function does not access memory.
+bool CallBase::doesNotAccessMemory() const {
+  return getMemoryEffects().doesNotAccessMemory();
+}
+void CallBase::setDoesNotAccessMemory() {
+  setMemoryEffects(MemoryEffects::none());
+}
+
+/// Determine if the function does not access or only reads memory.
+bool CallBase::onlyReadsMemory() const {
+  return getMemoryEffects().onlyReadsMemory();
+}
+void CallBase::setOnlyReadsMemory() {
+  setMemoryEffects(getMemoryEffects() & MemoryEffects::readOnly());
+}
+
+/// Determine if the function does not access or only writes memory.
+bool CallBase::onlyWritesMemory() const {
+  return getMemoryEffects().onlyWritesMemory();
+}
+void CallBase::setOnlyWritesMemory() {
+  setMemoryEffects(getMemoryEffects() & MemoryEffects::writeOnly());
+}
+
+/// Determine if the call can access memmory only using pointers based
+/// on its arguments.
+bool CallBase::onlyAccessesArgMemory() const {
+  return getMemoryEffects().onlyAccessesArgPointees();
+}
+void CallBase::setOnlyAccessesArgMemory() {
+  setMemoryEffects(getMemoryEffects() & MemoryEffects::argMemOnly());
+}
+
+/// Determine if the function may only access memory that is
+///  inaccessible from the IR.
+bool CallBase::onlyAccessesInaccessibleMemory() const {
+  return getMemoryEffects().onlyAccessesInaccessibleMem();
+}
+void CallBase::setOnlyAccessesInaccessibleMemory() {
+  setMemoryEffects(getMemoryEffects() & MemoryEffects::inaccessibleMemOnly());
+}
+
+/// Determine if the function may only access memory that is
+///  either inaccessible from the IR or pointed to by its arguments.
+bool CallBase::onlyAccessesInaccessibleMemOrArgMem() const {
+  return getMemoryEffects().onlyAccessesInaccessibleOrArgMem();
+}
+void CallBase::setOnlyAccessesInaccessibleMemOrArgMem() {
+  setMemoryEffects(getMemoryEffects() &
+                   MemoryEffects::inaccessibleOrArgMemOnly());
+}
+
 //===----------------------------------------------------------------------===//
 //                        CallInst Implementation
 //===----------------------------------------------------------------------===//

diff  --git a/llvm/lib/IR/Verifier.cpp b/llvm/lib/IR/Verifier.cpp
index e7c2eb9e8818b..3c68f07cb230d 100644
--- a/llvm/lib/IR/Verifier.cpp
+++ b/llvm/lib/IR/Verifier.cpp
@@ -2021,28 +2021,6 @@ void Verifier::verifyFunctionAttrs(FunctionType *FT, AttributeList Attrs,
               "' does not apply to functions!",
           V);
 
-  Check(!(Attrs.hasFnAttr(Attribute::ReadNone) &&
-          Attrs.hasFnAttr(Attribute::ReadOnly)),
-        "Attributes 'readnone and readonly' are incompatible!", V);
-
-  Check(!(Attrs.hasFnAttr(Attribute::ReadNone) &&
-          Attrs.hasFnAttr(Attribute::WriteOnly)),
-        "Attributes 'readnone and writeonly' are incompatible!", V);
-
-  Check(!(Attrs.hasFnAttr(Attribute::ReadOnly) &&
-          Attrs.hasFnAttr(Attribute::WriteOnly)),
-        "Attributes 'readonly and writeonly' are incompatible!", V);
-
-  Check(!(Attrs.hasFnAttr(Attribute::ReadNone) &&
-          Attrs.hasFnAttr(Attribute::InaccessibleMemOrArgMemOnly)),
-        "Attributes 'readnone and inaccessiblemem_or_argmemonly' are "
-        "incompatible!",
-        V);
-
-  Check(!(Attrs.hasFnAttr(Attribute::ReadNone) &&
-          Attrs.hasFnAttr(Attribute::InaccessibleMemOnly)),
-        "Attributes 'readnone and inaccessiblememonly' are incompatible!", V);
-
   Check(!(Attrs.hasFnAttr(Attribute::NoInline) &&
           Attrs.hasFnAttr(Attribute::AlwaysInline)),
         "Attributes 'noinline and alwaysinline' are incompatible!", V);

diff  --git a/llvm/lib/Target/AMDGPU/AMDGPULibFunc.cpp b/llvm/lib/Target/AMDGPU/AMDGPULibFunc.cpp
index 1b0d7bb43c80f..9dbcb548f8476 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPULibFunc.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPULibFunc.cpp
@@ -17,6 +17,7 @@
 #include "llvm/ADT/StringSwitch.h"
 #include "llvm/IR/DerivedTypes.h"
 #include "llvm/IR/Function.h"
+#include "llvm/IR/ModRef.h"
 #include "llvm/IR/Module.h"
 #include "llvm/IR/ValueSymbolTable.h"
 #include "llvm/Support/CommandLine.h"
@@ -992,7 +993,8 @@ FunctionCallee AMDGPULibFunc::getOrInsertFunction(Module *M,
   } else {
     AttributeList Attr;
     LLVMContext &Ctx = M->getContext();
-    Attr = Attr.addFnAttribute(Ctx, Attribute::ReadOnly);
+    Attr = Attr.addFnAttribute(
+        Ctx, Attribute::getWithMemoryEffects(Ctx, MemoryEffects::readOnly()));
     Attr = Attr.addFnAttribute(Ctx, Attribute::NoUnwind);
     C = M->getOrInsertFunction(FuncName, FuncTy, Attr);
   }

diff  --git a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
index eb947a17ef9ec..2570e7a661e59 100644
--- a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
+++ b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
@@ -33,6 +33,7 @@
 #include "llvm/IR/IntrinsicInst.h"
 #include "llvm/IR/IntrinsicsAMDGPU.h"
 #include "llvm/IR/IntrinsicsR600.h"
+#include "llvm/IR/ModRef.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/KnownBits.h"
 
@@ -958,7 +959,8 @@ bool SITargetLowering::getTgtMemIntrinsic(IntrinsicInfo &Info,
           AMDGPU::lookupRsrcIntrinsic(IntrID)) {
     AttributeList Attr = Intrinsic::getAttributes(CI.getContext(),
                                                   (Intrinsic::ID)IntrID);
-    if (Attr.hasFnAttr(Attribute::ReadNone))
+    MemoryEffects ME = Attr.getMemoryEffects();
+    if (ME.doesNotAccessMemory())
       return false;
 
     SIMachineFunctionInfo *MFI = MF.getInfo<SIMachineFunctionInfo>();
@@ -974,7 +976,7 @@ bool SITargetLowering::getTgtMemIntrinsic(IntrinsicInfo &Info,
     }
 
     Info.flags |= MachineMemOperand::MODereferenceable;
-    if (Attr.hasFnAttr(Attribute::ReadOnly)) {
+    if (ME.onlyReadsMemory()) {
       unsigned DMaskLanes = 4;
 
       if (RsrcIntr->IsImage) {
@@ -998,7 +1000,7 @@ bool SITargetLowering::getTgtMemIntrinsic(IntrinsicInfo &Info,
       // FIXME: What does alignment mean for an image?
       Info.opc = ISD::INTRINSIC_W_CHAIN;
       Info.flags |= MachineMemOperand::MOLoad;
-    } else if (Attr.hasFnAttr(Attribute::WriteOnly)) {
+    } else if (ME.onlyWritesMemory()) {
       Info.opc = ISD::INTRINSIC_VOID;
 
       Type *DataTy = CI.getArgOperand(0)->getType();

diff  --git a/llvm/lib/Target/Mips/Mips16HardFloat.cpp b/llvm/lib/Target/Mips/Mips16HardFloat.cpp
index 419f0ac1a8a72..8b928e36b9da5 100644
--- a/llvm/lib/Target/Mips/Mips16HardFloat.cpp
+++ b/llvm/lib/Target/Mips/Mips16HardFloat.cpp
@@ -12,6 +12,7 @@
 
 #include "MipsTargetMachine.h"
 #include "llvm/CodeGen/TargetPassConfig.h"
+#include "llvm/IR/ModRef.h"
 #include "llvm/IR/Module.h"
 #include "llvm/IR/Value.h"
 #include "llvm/Support/Debug.h"
@@ -409,7 +410,8 @@ static bool fixupFPReturnAndCall(Function &F, Module *M,
         // functions will take place.
         //
         A = A.addFnAttribute(C, "__Mips16RetHelper");
-        A = A.addFnAttribute(C, Attribute::ReadNone);
+        A = A.addFnAttribute(
+            C, Attribute::getWithMemoryEffects(C, MemoryEffects::none()));
         A = A.addFnAttribute(C, Attribute::NoInline);
         FunctionCallee F = (M->getOrInsertFunction(Name, A, MyVoid, T));
         CallInst::Create(F, Params, "", &I);

diff  --git a/llvm/lib/Transforms/IPO/AttributorAttributes.cpp b/llvm/lib/Transforms/IPO/AttributorAttributes.cpp
index c1850f7378127..0514e503fc6b4 100644
--- a/llvm/lib/Transforms/IPO/AttributorAttributes.cpp
+++ b/llvm/lib/Transforms/IPO/AttributorAttributes.cpp
@@ -7305,13 +7305,28 @@ struct AAMemoryBehaviorFunction final : public AAMemoryBehaviorImpl {
 
   /// See AbstractAttribute::manifest(...).
   ChangeStatus manifest(Attributor &A) override {
+    // TODO: It would be better to merge this with AAMemoryLocation, so that
+    // we could determine read/write per location. This would also have the
+    // benefit of only one place trying to manifest the memory attribute.
     Function &F = cast<Function>(getAnchorValue());
-    if (isAssumedReadNone()) {
-      F.removeFnAttr(Attribute::ArgMemOnly);
-      F.removeFnAttr(Attribute::InaccessibleMemOnly);
-      F.removeFnAttr(Attribute::InaccessibleMemOrArgMemOnly);
-    }
-    return AAMemoryBehaviorImpl::manifest(A);
+    MemoryEffects ME = MemoryEffects::unknown();
+    if (isAssumedReadNone())
+      ME = MemoryEffects::none();
+    else if (isAssumedReadOnly())
+      ME = MemoryEffects::readOnly();
+    else if (isAssumedWriteOnly())
+      ME = MemoryEffects::writeOnly();
+
+    // Intersect with existing memory attribute, as we currently deduce the
+    // location and modref portion separately.
+    MemoryEffects ExistingME = F.getMemoryEffects();
+    ME &= ExistingME;
+    if (ME == ExistingME)
+      return ChangeStatus::UNCHANGED;
+
+    return IRAttributeManifest::manifestAttrs(
+        A, getIRPosition(), Attribute::getWithMemoryEffects(F.getContext(), ME),
+        /*ForceReplace*/ true);
   }
 
   /// See AbstractAttribute::trackStatistics()
@@ -7351,6 +7366,31 @@ struct AAMemoryBehaviorCallSite final : AAMemoryBehaviorImpl {
     return clampStateAndIndicateChange(getState(), FnAA.getState());
   }
 
+  /// See AbstractAttribute::manifest(...).
+  ChangeStatus manifest(Attributor &A) override {
+    // TODO: Deduplicate this with AAMemoryBehaviorFunction.
+    CallBase &CB = cast<CallBase>(getAnchorValue());
+    MemoryEffects ME = MemoryEffects::unknown();
+    if (isAssumedReadNone())
+      ME = MemoryEffects::none();
+    else if (isAssumedReadOnly())
+      ME = MemoryEffects::readOnly();
+    else if (isAssumedWriteOnly())
+      ME = MemoryEffects::writeOnly();
+
+    // Intersect with existing memory attribute, as we currently deduce the
+    // location and modref portion separately.
+    MemoryEffects ExistingME = CB.getMemoryEffects();
+    ME &= ExistingME;
+    if (ME == ExistingME)
+      return ChangeStatus::UNCHANGED;
+
+    return IRAttributeManifest::manifestAttrs(
+        A, getIRPosition(),
+        Attribute::getWithMemoryEffects(CB.getContext(), ME),
+        /*ForceReplace*/ true);
+  }
+
   /// See AbstractAttribute::trackStatistics()
   void trackStatistics() const override {
     if (isAssumedReadNone())
@@ -7620,36 +7660,54 @@ struct AAMemoryLocationImpl : public AAMemoryLocation {
     // unlikely this will cause real performance problems. If we are deriving
     // attributes for the anchor function we even remove the attribute in
     // addition to ignoring it.
+    // TODO: A better way to handle this would be to add ~NO_GLOBAL_MEM /
+    // MemoryEffects::Other as a possible location.
     bool UseArgMemOnly = true;
     Function *AnchorFn = IRP.getAnchorScope();
     if (AnchorFn && A.isRunOn(*AnchorFn))
       UseArgMemOnly = !AnchorFn->hasLocalLinkage();
 
     SmallVector<Attribute, 2> Attrs;
-    IRP.getAttrs(AttrKinds, Attrs, IgnoreSubsumingPositions);
+    IRP.getAttrs({Attribute::Memory}, Attrs, IgnoreSubsumingPositions);
     for (const Attribute &Attr : Attrs) {
-      switch (Attr.getKindAsEnum()) {
-      case Attribute::ReadNone:
+      // TODO: We can map MemoryEffects to Attributor locations more precisely.
+      MemoryEffects ME = Attr.getMemoryEffects();
+      if (ME.doesNotAccessMemory()) {
         State.addKnownBits(NO_LOCAL_MEM | NO_CONST_MEM);
-        break;
-      case Attribute::InaccessibleMemOnly:
+        continue;
+      }
+      if (ME.onlyAccessesInaccessibleMem()) {
         State.addKnownBits(inverseLocation(NO_INACCESSIBLE_MEM, true, true));
-        break;
-      case Attribute::ArgMemOnly:
+        continue;
+      }
+      if (ME.onlyAccessesArgPointees()) {
         if (UseArgMemOnly)
           State.addKnownBits(inverseLocation(NO_ARGUMENT_MEM, true, true));
-        else
-          IRP.removeAttrs({Attribute::ArgMemOnly});
-        break;
-      case Attribute::InaccessibleMemOrArgMemOnly:
+        else {
+          // Remove location information, only keep read/write info.
+          ME = MemoryEffects(ME.getModRef());
+          IRAttributeManifest::manifestAttrs(
+              A, IRP,
+              Attribute::getWithMemoryEffects(IRP.getAnchorValue().getContext(),
+                                              ME),
+              /*ForceReplace*/ true);
+        }
+        continue;
+      }
+      if (ME.onlyAccessesInaccessibleOrArgMem()) {
         if (UseArgMemOnly)
           State.addKnownBits(inverseLocation(
               NO_INACCESSIBLE_MEM | NO_ARGUMENT_MEM, true, true));
-        else
-          IRP.removeAttrs({Attribute::InaccessibleMemOrArgMemOnly});
-        break;
-      default:
-        llvm_unreachable("Unexpected attribute!");
+        else {
+          // Remove location information, only keep read/write info.
+          ME = MemoryEffects(ME.getModRef());
+          IRAttributeManifest::manifestAttrs(
+              A, IRP,
+              Attribute::getWithMemoryEffects(IRP.getAnchorValue().getContext(),
+                                              ME),
+              /*ForceReplace*/ true);
+        }
+        continue;
       }
     }
   }
@@ -7657,41 +7715,53 @@ struct AAMemoryLocationImpl : public AAMemoryLocation {
   /// See AbstractAttribute::getDeducedAttributes(...).
   void getDeducedAttributes(LLVMContext &Ctx,
                             SmallVectorImpl<Attribute> &Attrs) const override {
+    // TODO: We can map Attributor locations to MemoryEffects more precisely.
     assert(Attrs.size() == 0);
-    if (isAssumedReadNone()) {
-      Attrs.push_back(Attribute::get(Ctx, Attribute::ReadNone));
-    } else if (getIRPosition().getPositionKind() == IRPosition::IRP_FUNCTION) {
-      if (isAssumedInaccessibleMemOnly())
-        Attrs.push_back(Attribute::get(Ctx, Attribute::InaccessibleMemOnly));
+    if (getIRPosition().getPositionKind() == IRPosition::IRP_FUNCTION) {
+      if (isAssumedReadNone())
+        Attrs.push_back(
+            Attribute::getWithMemoryEffects(Ctx, MemoryEffects::none()));
+      else if (isAssumedInaccessibleMemOnly())
+        Attrs.push_back(Attribute::getWithMemoryEffects(
+            Ctx, MemoryEffects::inaccessibleMemOnly()));
       else if (isAssumedArgMemOnly())
-        Attrs.push_back(Attribute::get(Ctx, Attribute::ArgMemOnly));
-      else if (isAssumedInaccessibleOrArgMemOnly())
         Attrs.push_back(
-            Attribute::get(Ctx, Attribute::InaccessibleMemOrArgMemOnly));
+            Attribute::getWithMemoryEffects(Ctx, MemoryEffects::argMemOnly()));
+      else if (isAssumedInaccessibleOrArgMemOnly())
+        Attrs.push_back(Attribute::getWithMemoryEffects(
+            Ctx, MemoryEffects::inaccessibleOrArgMemOnly()));
     }
     assert(Attrs.size() <= 1);
   }
 
   /// See AbstractAttribute::manifest(...).
   ChangeStatus manifest(Attributor &A) override {
+    // TODO: If AAMemoryLocation and AAMemoryBehavior are merged, we could
+    // provide per-location modref information here.
     const IRPosition &IRP = getIRPosition();
 
-    // Check if we would improve the existing attributes first.
-    SmallVector<Attribute, 4> DeducedAttrs;
+    SmallVector<Attribute, 1> DeducedAttrs;
     getDeducedAttributes(IRP.getAnchorValue().getContext(), DeducedAttrs);
-    if (llvm::all_of(DeducedAttrs, [&](const Attribute &Attr) {
-          return IRP.hasAttr(Attr.getKindAsEnum(),
-                             /* IgnoreSubsumingPositions */ true);
-        }))
+    if (DeducedAttrs.size() != 1)
       return ChangeStatus::UNCHANGED;
+    MemoryEffects ME = DeducedAttrs[0].getMemoryEffects();
+
+    // Intersect with existing memory attribute, as we currently deduce the
+    // location and modref portion separately.
+    SmallVector<Attribute, 1> ExistingAttrs;
+    IRP.getAttrs({Attribute::Memory}, ExistingAttrs,
+                 /* IgnoreSubsumingPositions */ true);
+    if (ExistingAttrs.size() == 1) {
+      MemoryEffects ExistingME = ExistingAttrs[0].getMemoryEffects();
+      ME &= ExistingME;
+      if (ME == ExistingME)
+        return ChangeStatus::UNCHANGED;
+    }
 
-    // Clear existing attributes.
-    IRP.removeAttrs(AttrKinds);
-    if (isAssumedReadNone())
-      IRP.removeAttrs(AAMemoryBehaviorImpl::AttrKinds);
-
-    // Use the generic manifest method.
-    return IRAttribute::manifest(A);
+    return IRAttributeManifest::manifestAttrs(
+        A, IRP,
+        Attribute::getWithMemoryEffects(IRP.getAnchorValue().getContext(), ME),
+        /*ForceReplace*/ true);
   }
 
   /// See AAMemoryLocation::checkForAllAccessesToMemoryKind(...).
@@ -7814,15 +7884,8 @@ struct AAMemoryLocationImpl : public AAMemoryLocation {
 
   /// Used to allocate access sets.
   BumpPtrAllocator &Allocator;
-
-  /// The set of IR attributes AAMemoryLocation deals with.
-  static const Attribute::AttrKind AttrKinds[4];
 };
 
-const Attribute::AttrKind AAMemoryLocationImpl::AttrKinds[] = {
-    Attribute::ReadNone, Attribute::InaccessibleMemOnly, Attribute::ArgMemOnly,
-    Attribute::InaccessibleMemOrArgMemOnly};
-
 void AAMemoryLocationImpl::categorizePtrValue(
     Attributor &A, const Instruction &I, const Value &Ptr,
     AAMemoryLocation::StateType &State, bool &Changed) {

diff  --git a/llvm/lib/Transforms/IPO/FunctionAttrs.cpp b/llvm/lib/Transforms/IPO/FunctionAttrs.cpp
index a187cb1e4790e..3058dc25202ec 100644
--- a/llvm/lib/Transforms/IPO/FunctionAttrs.cpp
+++ b/llvm/lib/Transforms/IPO/FunctionAttrs.cpp
@@ -69,10 +69,7 @@ using namespace llvm;
 
 #define DEBUG_TYPE "function-attrs"
 
-STATISTIC(NumArgMemOnly, "Number of functions marked argmemonly");
-STATISTIC(NumReadNone, "Number of functions marked readnone");
-STATISTIC(NumReadOnly, "Number of functions marked readonly");
-STATISTIC(NumWriteOnly, "Number of functions marked writeonly");
+STATISTIC(NumMemoryAttr, "Number of functions with improved memory attribute");
 STATISTIC(NumNoCapture, "Number of arguments marked nocapture");
 STATISTIC(NumReturned, "Number of arguments marked returned");
 STATISTIC(NumReadNoneArg, "Number of arguments marked readnone");
@@ -254,79 +251,14 @@ static void addMemoryAttrs(const SCCNodeSet &SCCNodes, AARGetterT &&AARGetter,
       return;
   }
 
-  ModRefInfo MR = ME.getModRef();
-
   for (Function *F : SCCNodes) {
-    if (F->doesNotAccessMemory())
-      // Already perfect!
-      continue;
-
-    if (ME.doesNotAccessMemory()) {
-      // For readnone, remove all other memory attributes.
-      AttributeMask AttrsToRemove;
-      AttrsToRemove.addAttribute(Attribute::ReadOnly);
-      AttrsToRemove.addAttribute(Attribute::WriteOnly);
-      AttrsToRemove.addAttribute(Attribute::ArgMemOnly);
-      AttrsToRemove.addAttribute(Attribute::InaccessibleMemOnly);
-      AttrsToRemove.addAttribute(Attribute::InaccessibleMemOrArgMemOnly);
-
-      ++NumReadNone;
-      F->removeFnAttrs(AttrsToRemove);
-      F->addFnAttr(Attribute::ReadNone);
-      Changed.insert(F);
-      continue;
-    }
-
-    // Add argmemonly, inaccessiblememonly, or inaccessible_or_argmemonly
-    // attributes if possible.
-    AttributeMask AttrsToRemove;
-    AttrsToRemove.addAttribute(Attribute::ArgMemOnly);
-    AttrsToRemove.addAttribute(Attribute::InaccessibleMemOnly);
-    AttrsToRemove.addAttribute(Attribute::InaccessibleMemOrArgMemOnly);
-    if (ME.onlyAccessesArgPointees()) {
-      if (!F->onlyAccessesArgMemory()) {
-        NumArgMemOnly++;
-        F->removeFnAttrs(AttrsToRemove);
-        F->addFnAttr(Attribute::ArgMemOnly);
-        Changed.insert(F);
-      }
-    } else if (ME.onlyAccessesInaccessibleMem()) {
-      if (!F->onlyAccessesInaccessibleMemory()) {
-        F->removeFnAttrs(AttrsToRemove);
-        F->addFnAttr(Attribute::InaccessibleMemOnly);
-        Changed.insert(F);
-      }
-    } else if (ME.onlyAccessesInaccessibleOrArgMem() &&
-               !F->onlyAccessesInaccessibleMemOrArgMem()) {
-      F->removeFnAttrs(AttrsToRemove);
-      F->addFnAttr(Attribute::InaccessibleMemOrArgMemOnly);
+    MemoryEffects OldME = F->getMemoryEffects();
+    MemoryEffects NewME = ME & OldME;
+    if (NewME != OldME) {
+      ++NumMemoryAttr;
+      F->setMemoryEffects(NewME);
       Changed.insert(F);
     }
-
-    // The SCC contains functions both writing and reading from memory. We
-    // cannot add readonly or writeonline attributes.
-    if (MR == ModRefInfo::ModRef)
-      continue;
-
-    if (F->onlyReadsMemory() && MR == ModRefInfo::Ref)
-      continue;
-
-    if (F->onlyWritesMemory() && MR == ModRefInfo::Mod)
-      continue;
-
-    Changed.insert(F);
-
-    // Add in the new attribute.
-    if (MR == ModRefInfo::Mod) {
-      ++NumWriteOnly;
-      F->removeFnAttr(Attribute::ReadOnly);
-      F->addFnAttr(Attribute::WriteOnly);
-    } else {
-      ++NumReadOnly;
-      assert(MR == ModRefInfo::Ref);
-      F->removeFnAttr(Attribute::WriteOnly);
-      F->addFnAttr(Attribute::ReadOnly);
-    }
   }
 }
 

diff  --git a/llvm/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp b/llvm/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp
index a84d2c4836d11..3c724c81c643b 100644
--- a/llvm/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp
+++ b/llvm/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp
@@ -1234,19 +1234,22 @@ DataFlowSanitizer::buildWrapperFunction(Function *F, StringRef NewFName,
 
 // Initialize DataFlowSanitizer runtime functions and declare them in the module
 void DataFlowSanitizer::initializeRuntimeFunctions(Module &M) {
+  LLVMContext &C = M.getContext();
   {
     AttributeList AL;
-    AL = AL.addFnAttribute(M.getContext(), Attribute::NoUnwind);
-    AL = AL.addFnAttribute(M.getContext(), Attribute::ReadOnly);
-    AL = AL.addRetAttribute(M.getContext(), Attribute::ZExt);
+    AL = AL.addFnAttribute(C, Attribute::NoUnwind);
+    AL = AL.addFnAttribute(
+        C, Attribute::getWithMemoryEffects(C, MemoryEffects::readOnly()));
+    AL = AL.addRetAttribute(C, Attribute::ZExt);
     DFSanUnionLoadFn =
         Mod->getOrInsertFunction("__dfsan_union_load", DFSanUnionLoadFnTy, AL);
   }
   {
     AttributeList AL;
-    AL = AL.addFnAttribute(M.getContext(), Attribute::NoUnwind);
-    AL = AL.addFnAttribute(M.getContext(), Attribute::ReadOnly);
-    AL = AL.addRetAttribute(M.getContext(), Attribute::ZExt);
+    AL = AL.addFnAttribute(C, Attribute::NoUnwind);
+    AL = AL.addFnAttribute(
+        C, Attribute::getWithMemoryEffects(C, MemoryEffects::readOnly()));
+    AL = AL.addRetAttribute(C, Attribute::ZExt);
     DFSanLoadLabelAndOriginFn = Mod->getOrInsertFunction(
         "__dfsan_load_label_and_origin", DFSanLoadLabelAndOriginFnTy, AL);
   }
@@ -1470,8 +1473,8 @@ bool DataFlowSanitizer::runImpl(
     }
   }
 
-  ReadOnlyNoneAttrs.addAttribute(Attribute::ReadOnly)
-      .addAttribute(Attribute::ReadNone);
+  // TODO: This could be more precise.
+  ReadOnlyNoneAttrs.addAttribute(Attribute::Memory);
 
   // First, change the ABI of every function in the module.  ABI-listed
   // functions keep their original ABI and get a wrapper function.

diff  --git a/llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp b/llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
index 6490a8d543276..cb4d1b6a34e2c 100644
--- a/llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
+++ b/llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
@@ -4074,12 +4074,9 @@ struct MemorySanitizerVisitor : public InstVisitor<MemorySanitizerVisitor> {
       // will become a non-readonly function after it is instrumented by us. To
       // prevent this code from being optimized out, mark that function
       // non-readonly in advance.
+      // TODO: We can likely do better than dropping memory() completely here.
       AttributeMask B;
-      B.addAttribute(Attribute::ReadOnly)
-          .addAttribute(Attribute::ReadNone)
-          .addAttribute(Attribute::WriteOnly)
-          .addAttribute(Attribute::ArgMemOnly)
-          .addAttribute(Attribute::Speculatable);
+      B.addAttribute(Attribute::Memory).addAttribute(Attribute::Speculatable);
 
       Call->removeFnAttrs(B);
       if (Function *Func = Call->getCalledFunction()) {
@@ -5769,13 +5766,9 @@ bool MemorySanitizer::sanitizeFunction(Function &F, TargetLibraryInfo &TLI) {
 
   MemorySanitizerVisitor Visitor(F, *this, TLI);
 
-  // Clear out readonly/readnone attributes.
+  // Clear out memory attributes.
   AttributeMask B;
-  B.addAttribute(Attribute::ReadOnly)
-      .addAttribute(Attribute::ReadNone)
-      .addAttribute(Attribute::WriteOnly)
-      .addAttribute(Attribute::ArgMemOnly)
-      .addAttribute(Attribute::Speculatable);
+  B.addAttribute(Attribute::Memory).addAttribute(Attribute::Speculatable);
   F.removeFnAttrs(B);
 
   return Visitor.runOnFunction();

diff  --git a/llvm/lib/Transforms/Scalar/PartiallyInlineLibCalls.cpp b/llvm/lib/Transforms/Scalar/PartiallyInlineLibCalls.cpp
index 689a2a286cb9f..6ad3bc9a69155 100644
--- a/llvm/lib/Transforms/Scalar/PartiallyInlineLibCalls.cpp
+++ b/llvm/lib/Transforms/Scalar/PartiallyInlineLibCalls.cpp
@@ -80,10 +80,9 @@ static bool optimizeSQRT(CallInst *Call, Function *CalledFunc,
   Instruction *LibCall = Call->clone();
   Builder.Insert(LibCall);
 
-  // Add attribute "readnone" so that backend can use a native sqrt instruction
-  // for this call.
-  Call->removeFnAttr(Attribute::WriteOnly);
-  Call->addFnAttr(Attribute::ReadNone);
+  // Add memory(none) attribute, so that the backend can use a native sqrt
+  // instruction for this call.
+  Call->setDoesNotAccessMemory();
 
   // Insert a FP compare instruction and use it as the CurrBB branch condition.
   Builder.SetInsertPoint(CurrBBTerm);

diff  --git a/llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp b/llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp
index 68cf9cc77cc48..12fd2e677909f 100644
--- a/llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp
+++ b/llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp
@@ -1430,10 +1430,7 @@ normalizeForInvokeSafepoint(BasicBlock *BB, BasicBlock *InvokeParent,
 // machine model for purposes of optimization.  We have to strip these on
 // both function declarations and call sites.
 static constexpr Attribute::AttrKind FnAttrsToStrip[] =
-  {Attribute::ReadNone, Attribute::ReadOnly, Attribute::WriteOnly,
-   Attribute::ArgMemOnly, Attribute::InaccessibleMemOnly,
-   Attribute::InaccessibleMemOrArgMemOnly,
-   Attribute::NoSync, Attribute::NoFree};
+  {Attribute::Memory, Attribute::NoSync, Attribute::NoFree};
 
 // Create new attribute set containing only attributes which can be transferred
 // from original call to the safepoint.

diff  --git a/llvm/lib/Transforms/Scalar/SCCP.cpp b/llvm/lib/Transforms/Scalar/SCCP.cpp
index 8f90c2b8ba1a7..fe1c632c85caa 100644
--- a/llvm/lib/Transforms/Scalar/SCCP.cpp
+++ b/llvm/lib/Transforms/Scalar/SCCP.cpp
@@ -590,21 +590,28 @@ bool llvm::runIPSCCP(
         }
       }
 
-      // If we replaced an argument, the argmemonly and
-      // inaccessiblemem_or_argmemonly attributes do not hold any longer. Remove
-      // them from both the function and callsites.
+      // If we replaced an argument, we may now also access a global (currently
+      // classified as "other" memory). Update memory attribute to reflect this.
       if (ReplacedPointerArg) {
-        AttributeMask AttributesToRemove;
-        AttributesToRemove.addAttribute(Attribute::ArgMemOnly);
-        AttributesToRemove.addAttribute(Attribute::InaccessibleMemOrArgMemOnly);
-        F.removeFnAttrs(AttributesToRemove);
-
+        auto UpdateAttrs = [&](AttributeList AL) {
+          MemoryEffects ME = AL.getMemoryEffects();
+          if (ME == MemoryEffects::unknown())
+            return AL;
+
+          ME |= MemoryEffects(MemoryEffects::Other,
+                              ME.getModRef(MemoryEffects::ArgMem));
+          return AL.addFnAttribute(
+              F.getContext(),
+              Attribute::getWithMemoryEffects(F.getContext(), ME));
+        };
+
+        F.setAttributes(UpdateAttrs(F.getAttributes()));
         for (User *U : F.users()) {
           auto *CB = dyn_cast<CallBase>(U);
           if (!CB || CB->getCalledFunction() != &F)
             continue;
 
-          CB->removeFnAttrs(AttributesToRemove);
+          CB->setAttributes(UpdateAttrs(CB->getAttributes()));
         }
       }
       MadeChanges |= ReplacedPointerArg;

diff  --git a/llvm/lib/Transforms/Utils/BuildLibCalls.cpp b/llvm/lib/Transforms/Utils/BuildLibCalls.cpp
index f1d1d0d4f1ef3..5fb4ee1cac524 100644
--- a/llvm/lib/Transforms/Utils/BuildLibCalls.cpp
+++ b/llvm/lib/Transforms/Utils/BuildLibCalls.cpp
@@ -75,11 +75,6 @@ static bool setOnlyReadsMemory(Function &F) {
 static bool setOnlyWritesMemory(Function &F) {
   if (F.onlyWritesMemory()) // writeonly or readnone
     return false;
-  // Turn readonly and writeonly into readnone.
-  if (F.hasFnAttribute(Attribute::ReadOnly)) {
-    F.removeFnAttr(Attribute::ReadOnly);
-    return setDoesNotAccessMemory(F);
-  }
   ++NumWriteOnly;
   F.setOnlyWritesMemory();
   return true;

diff  --git a/llvm/lib/Transforms/Utils/CodeExtractor.cpp b/llvm/lib/Transforms/Utils/CodeExtractor.cpp
index 23b943c69386d..fba9dbb2c9c27 100644
--- a/llvm/lib/Transforms/Utils/CodeExtractor.cpp
+++ b/llvm/lib/Transforms/Utils/CodeExtractor.cpp
@@ -904,24 +904,18 @@ Function *CodeExtractor::constructFunction(const ValueSet &inputs,
       // Those attributes cannot be propagated safely. Explicitly list them
       // here so we get a warning if new attributes are added.
       case Attribute::AllocSize:
-      case Attribute::ArgMemOnly:
       case Attribute::Builtin:
       case Attribute::Convergent:
-      case Attribute::InaccessibleMemOnly:
-      case Attribute::InaccessibleMemOrArgMemOnly:
       case Attribute::JumpTable:
       case Attribute::Naked:
       case Attribute::NoBuiltin:
       case Attribute::NoMerge:
       case Attribute::NoReturn:
       case Attribute::NoSync:
-      case Attribute::ReadNone:
-      case Attribute::ReadOnly:
       case Attribute::ReturnsTwice:
       case Attribute::Speculatable:
       case Attribute::StackAlignment:
       case Attribute::WillReturn:
-      case Attribute::WriteOnly:
       case Attribute::AllocKind:
       case Attribute::PresplitCoroutine:
       case Attribute::Memory:
@@ -984,6 +978,8 @@ Function *CodeExtractor::constructFunction(const ValueSet &inputs,
       case Attribute::NoUndef:
       case Attribute::NonNull:
       case Attribute::Preallocated:
+      case Attribute::ReadNone:
+      case Attribute::ReadOnly:
       case Attribute::Returned:
       case Attribute::SExt:
       case Attribute::StructRet:
@@ -993,6 +989,7 @@ Function *CodeExtractor::constructFunction(const ValueSet &inputs,
       case Attribute::ZExt:
       case Attribute::ImmArg:
       case Attribute::ByRef:
+      case Attribute::WriteOnly:
       //  These are not really attributes.
       case Attribute::None:
       case Attribute::EndAttrKinds:

diff  --git a/llvm/test/Analysis/BasicAA/cs-cs.ll b/llvm/test/Analysis/BasicAA/cs-cs.ll
index 3a0cd5947e2a5..513f305b3a19e 100644
--- a/llvm/test/Analysis/BasicAA/cs-cs.ll
+++ b/llvm/test/Analysis/BasicAA/cs-cs.ll
@@ -429,19 +429,19 @@ entry:
 }
 
 
-; CHECK:      attributes #0 = { argmemonly nocallback nofree nounwind willreturn writeonly }
-; CHECK-NEXT: attributes #1 = { argmemonly nocallback nofree nounwind willreturn }
-; CHECK-NEXT: attributes #2 = { argmemonly nosync nounwind willreturn }
-; CHECK-NEXT: attributes #3 = { noinline nounwind readonly }
-; CHECK-NEXT: attributes #4 = { noinline nounwind writeonly }
+; CHECK:      attributes #0 = { nocallback nofree nounwind willreturn memory(argmem: write) }
+; CHECK-NEXT: attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
+; CHECK-NEXT: attributes #2 = { nosync nounwind willreturn memory(argmem: readwrite) }
+; CHECK-NEXT: attributes #3 = { noinline nounwind memory(read) }
+; CHECK-NEXT: attributes #4 = { noinline nounwind memory(write) }
 ; CHECK-NEXT: attributes #5 = { nounwind ssp }
-; CHECK-NEXT: attributes #6 = { inaccessiblememonly nounwind }
-; CHECK-NEXT: attributes #7 = { inaccessiblemem_or_argmemonly nounwind }
-; CHECK-NEXT: attributes #8 = { argmemonly nounwind }
-; CHECK-NEXT: attributes #9 = { readonly }
-; CHECK-NEXT: attributes #10 = { inaccessiblememonly }
-; CHECK-NEXT: attributes #11 = { inaccessiblemem_or_argmemonly }
-; CHECK-NEXT: attributes #12 = { argmemonly }
+; CHECK-NEXT: attributes #6 = { nounwind memory(inaccessiblemem: readwrite) }
+; CHECK-NEXT: attributes #7 = { nounwind memory(argmem: readwrite, inaccessiblemem: readwrite) }
+; CHECK-NEXT: attributes #8 = { nounwind memory(argmem: readwrite) }
+; CHECK-NEXT: attributes #9 = { memory(read) }
+; CHECK-NEXT: attributes #10 = { memory(inaccessiblemem: readwrite) }
+; CHECK-NEXT: attributes #11 = { memory(argmem: readwrite, inaccessiblemem: readwrite) }
+; CHECK-NEXT: attributes #12 = { memory(argmem: readwrite) }
 
 attributes #0 = { argmemonly nounwind }
 attributes #1 = { noinline nounwind readonly }

diff  --git a/llvm/test/Analysis/BasicAA/intrinsics-arm.ll b/llvm/test/Analysis/BasicAA/intrinsics-arm.ll
index d43445c7a50c4..3fda58721e663 100644
--- a/llvm/test/Analysis/BasicAA/intrinsics-arm.ll
+++ b/llvm/test/Analysis/BasicAA/intrinsics-arm.ll
@@ -26,6 +26,6 @@ entry:
 declare <8 x i16> @llvm.arm.neon.vld1.v8i16.p0i8(i8*, i32) nounwind readonly
 declare void @llvm.arm.neon.vst1.p0i8.v8i16(i8*, <8 x i16>, i32) nounwind
 
-; CHECK: attributes #0 = { argmemonly nocallback nofree nosync nounwind readonly willreturn }
-; CHECK: attributes #1 = { argmemonly nocallback nofree nosync nounwind willreturn }
+; CHECK: attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: read) }
+; CHECK: attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
 ; CHECK: attributes [[ATTR]] = { nounwind }

diff  --git a/llvm/test/Analysis/BasicAA/intrinsics.ll b/llvm/test/Analysis/BasicAA/intrinsics.ll
index 46e9f4e06c2f2..3965286215e3d 100644
--- a/llvm/test/Analysis/BasicAA/intrinsics.ll
+++ b/llvm/test/Analysis/BasicAA/intrinsics.ll
@@ -22,6 +22,6 @@ entry:
 declare <8 x i16> @llvm.masked.load.v8i16.p0v8i16(<8 x i16>*, i32, <8 x i1>, <8 x i16>) nounwind readonly
 declare void @llvm.masked.store.v8i16.p0v8i16(<8 x i16>, <8 x i16>*, i32, <8 x i1>) nounwind
 
-; CHECK: attributes #0 = { argmemonly nocallback nofree nosync nounwind readonly willreturn }
-; CHECK: attributes #1 = { argmemonly nocallback nofree nosync nounwind willreturn writeonly }
+; CHECK: attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: read) }
+; CHECK: attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: write) }
 ; CHECK: attributes [[ATTR]] = { nounwind }

diff  --git a/llvm/test/Analysis/BasicAA/pure-const-dce.ll b/llvm/test/Analysis/BasicAA/pure-const-dce.ll
index 8d07084561732..c6b8b0669ab23 100644
--- a/llvm/test/Analysis/BasicAA/pure-const-dce.ll
+++ b/llvm/test/Analysis/BasicAA/pure-const-dce.ll
@@ -50,5 +50,5 @@ declare i32 @TestPure(i32) readonly
 
 declare i32 @TestNone(i32)
 
-; CHECK: attributes [[READNONE]] = { readnone }
-; CHECK: attributes [[READONLY]] = { readonly }
+; CHECK: attributes [[READNONE]] = { memory(none) }
+; CHECK: attributes [[READONLY]] = { memory(read) }

diff  --git a/llvm/test/Analysis/TypeBasedAliasAnalysis/functionattrs.ll b/llvm/test/Analysis/TypeBasedAliasAnalysis/functionattrs.ll
index 6134f578895bc..7f8f7e8c6d662 100644
--- a/llvm/test/Analysis/TypeBasedAliasAnalysis/functionattrs.ll
+++ b/llvm/test/Analysis/TypeBasedAliasAnalysis/functionattrs.ll
@@ -72,14 +72,14 @@ define i32 @test3_no(i8* %p) nounwind {
 declare void @callee(i32* %p) nounwind
 declare void @llvm.memcpy.p0i8.p0i8.i64(i8*, i8*, i64, i1) nounwind
 
-; CHECK: attributes #0 = { mustprogress nofree norecurse nosync nounwind readnone willreturn }
-; CHECK: attributes #1 = { argmemonly mustprogress nofree norecurse nosync nounwind willreturn writeonly }
-; CHECK: attributes #2 = { nofree nosync nounwind readnone }
+; CHECK: attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(none) }
+; CHECK: attributes #1 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; CHECK: attributes #2 = { nofree nosync nounwind memory(none) }
 ; CHECK: attributes #3 = { nounwind }
-; CHECK: attributes #4 = { mustprogress nofree nosync nounwind readnone willreturn }
-; CHECK: attributes #5 = { argmemonly mustprogress nofree nosync nounwind willreturn }
-; CHECK: attributes #6 = { argmemonly mustprogress nofree norecurse nosync nounwind willreturn }
-; CHECK: attributes #7 = { argmemonly nocallback nofree nounwind willreturn }
+; CHECK: attributes #4 = { mustprogress nofree nosync nounwind willreturn memory(none) }
+; CHECK: attributes #5 = { mustprogress nofree nosync nounwind willreturn memory(argmem: readwrite) }
+; CHECK: attributes #6 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) }
+; CHECK: attributes #7 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
 
 ; Root note.
 !0 = !{ }

diff  --git a/llvm/test/Analysis/TypeBasedAliasAnalysis/intrinsics.ll b/llvm/test/Analysis/TypeBasedAliasAnalysis/intrinsics.ll
index 42166584a78a4..f3b4b1abd2168 100644
--- a/llvm/test/Analysis/TypeBasedAliasAnalysis/intrinsics.ll
+++ b/llvm/test/Analysis/TypeBasedAliasAnalysis/intrinsics.ll
@@ -22,8 +22,8 @@ entry:
 declare <8 x i16> @llvm.masked.load.v8i16.p0v8i16(<8 x i16>*, i32, <8 x i1>, <8 x i16>) nounwind readonly
 declare void @llvm.masked.store.v8i16.p0v8i16(<8 x i16>, <8 x i16>*, i32, <8 x i1>) nounwind
 
-; CHECK: attributes #0 = { argmemonly nocallback nofree nosync nounwind readonly willreturn }
-; CHECK: attributes #1 = { argmemonly nocallback nofree nosync nounwind willreturn writeonly }
+; CHECK: attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: read) }
+; CHECK: attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: write) }
 ; CHECK: attributes [[NUW]] = { nounwind }
 
 !0 = !{!"tbaa root"}

diff  --git a/llvm/test/Assembler/aarch64-intrinsics-attributes.ll b/llvm/test/Assembler/aarch64-intrinsics-attributes.ll
index cbf5de3d934a8..40e7789b4e44c 100644
--- a/llvm/test/Assembler/aarch64-intrinsics-attributes.ll
+++ b/llvm/test/Assembler/aarch64-intrinsics-attributes.ll
@@ -23,4 +23,4 @@ declare <4 x i32> @llvm.aarch64.neon.shadd.v4i32(<4 x i32>, <4 x i32>)
 declare <vscale x 4 x i32> @llvm.aarch64.sve.dup.nxv4i32(<vscale x 4 x i32>, <vscale x 4 x i1>, i32)
 
 ; CHECK: attributes [[NOFREE_NOUNWIND_WILLRETURN]] = { nofree nounwind willreturn }
-; CHECK: attributes [[NO_CALLBACK_NOFREE_NOSYNC_NOUNWIND_READNONE_WILLRETURN]] = { nocallback nofree nosync nounwind readnone willreturn }
+; CHECK: attributes [[NO_CALLBACK_NOFREE_NOSYNC_NOUNWIND_READNONE_WILLRETURN]] = { nocallback nofree nosync nounwind willreturn memory(none) }

diff  --git a/llvm/test/Assembler/masked-load-store-intrinsics-attributes.ll b/llvm/test/Assembler/masked-load-store-intrinsics-attributes.ll
index afa90ec76a8f1..c3a6dec809301 100644
--- a/llvm/test/Assembler/masked-load-store-intrinsics-attributes.ll
+++ b/llvm/test/Assembler/masked-load-store-intrinsics-attributes.ll
@@ -15,6 +15,6 @@ declare <16 x float> @llvm.masked.expandload.v16f32 (ptr, <16 x i1>, <16 x float
 ; CHECK: declare void @llvm.masked.compressstore.v8i32(<8 x i32>, ptr nocapture, <8 x i1>) [[ARGMEMONLY_NOCALLBACK_NOFREE_NOSYNC_NOUNWIND_WILLRETURN_WRITEONLY:#[0-9]+]]
 declare void @llvm.masked.compressstore.v8i32(<8 x i32>, ptr, <8  x i1>)
 
-; CHECK: attributes [[ARGMEMONLY_NOCALLBACK_NOFREE_NOSYNC_NOUNWIND_READONLY_WILLRETURN]] = { argmemonly nocallback nofree nosync nounwind readonly willreturn }
-; CHECK: attributes [[ARGMEMONLY_NOCALLBACK_NOFREE_NOSYNC_NOUNWIND_WILLRETURN_WRITEONLY]] = { argmemonly nocallback nofree nosync nounwind willreturn writeonly }
-; CHECK: attributes [[NOCALLBACK_NOFREE_NOSYNC_NOUNWIND_READONLY_WILLRETURN]] = { nocallback nofree nosync nounwind readonly willreturn }
+; CHECK: attributes [[ARGMEMONLY_NOCALLBACK_NOFREE_NOSYNC_NOUNWIND_READONLY_WILLRETURN]] = { nocallback nofree nosync nounwind willreturn memory(argmem: read) }
+; CHECK: attributes [[ARGMEMONLY_NOCALLBACK_NOFREE_NOSYNC_NOUNWIND_WILLRETURN_WRITEONLY]] = { nocallback nofree nosync nounwind willreturn memory(argmem: write) }
+; CHECK: attributes [[NOCALLBACK_NOFREE_NOSYNC_NOUNWIND_READONLY_WILLRETURN]] = { nocallback nofree nosync nounwind willreturn memory(read) }

diff  --git a/llvm/test/Bindings/llvm-c/debug_info.ll b/llvm/test/Bindings/llvm-c/debug_info.ll
index 874cf818dca29..a7fcd8a999ef1 100644
--- a/llvm/test/Bindings/llvm-c/debug_info.ll
+++ b/llvm/test/Bindings/llvm-c/debug_info.ll
@@ -12,13 +12,13 @@
 ; CHECK-NEXT:   call void @llvm.dbg.value(metadata i64 0, metadata !41, metadata !DIExpression(DW_OP_constu, 0, DW_OP_stack_value)), !dbg !44
 ; CHECK-NEXT: }
 
-; CHECK:      ; Function Attrs: nocallback nofree nosync nounwind readnone speculatable willreturn
+; CHECK:      ; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
 ; CHECK-NEXT: declare void @llvm.dbg.declare(metadata, metadata, metadata) #0
 
-; CHECK:      ; Function Attrs: nocallback nofree nosync nounwind readnone speculatable willreturn
+; CHECK:      ; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
 ; CHECK-NEXT: declare void @llvm.dbg.value(metadata, metadata, metadata) #0
 
-; CHECK:      attributes #0 = { nocallback nofree nosync nounwind readnone speculatable willreturn }
+; CHECK:      attributes #0 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
 
 ; CHECK:      !llvm.dbg.cu = !{!0}
 ; CHECK-NEXT: !FooType = !{!28}

diff  --git a/llvm/test/Bitcode/attributes-3.3.ll b/llvm/test/Bitcode/attributes-3.3.ll
index 6a645fbaed79d..f9aef5d2f612d 100644
--- a/llvm/test/Bitcode/attributes-3.3.ll
+++ b/llvm/test/Bitcode/attributes-3.3.ll
@@ -213,8 +213,8 @@ define void @f34()
 
 ; CHECK: attributes #0 = { noreturn }
 ; CHECK: attributes #1 = { nounwind }
-; CHECK: attributes #2 = { readnone }
-; CHECK: attributes #3 = { readonly }
+; CHECK: attributes #2 = { memory(none) }
+; CHECK: attributes #3 = { memory(read) }
 ; CHECK: attributes #4 = { noinline }
 ; CHECK: attributes #5 = { alwaysinline }
 ; CHECK: attributes #6 = { optsize }

diff  --git a/llvm/test/Bitcode/attributes.ll b/llvm/test/Bitcode/attributes.ll
index f8d31722acf07..7d42ae9b8a073 100644
--- a/llvm/test/Bitcode/attributes.ll
+++ b/llvm/test/Bitcode/attributes.ll
@@ -540,8 +540,8 @@ define void @f88() skipprofile { ret void }
 
 ; CHECK: attributes #0 = { noreturn }
 ; CHECK: attributes #1 = { nounwind }
-; CHECK: attributes #2 = { readnone }
-; CHECK: attributes #3 = { readonly }
+; CHECK: attributes #2 = { memory(none) }
+; CHECK: attributes #3 = { memory(read) }
 ; CHECK: attributes #4 = { noinline }
 ; CHECK: attributes #5 = { alwaysinline }
 ; CHECK: attributes #6 = { optsize }
@@ -564,13 +564,13 @@ define void @f88() skipprofile { ret void }
 ; CHECK: attributes #23 = { noinline optnone }
 ; CHECK: attributes #24 = { jumptable }
 ; CHECK: attributes #25 = { convergent }
-; CHECK: attributes #26 = { argmemonly }
+; CHECK: attributes #26 = { memory(argmem: readwrite) }
 ; CHECK: attributes #27 = { norecurse }
-; CHECK: attributes #28 = { inaccessiblememonly }
-; CHECK: attributes #29 = { inaccessiblemem_or_argmemonly }
+; CHECK: attributes #28 = { memory(inaccessiblemem: readwrite) }
+; CHECK: attributes #29 = { memory(argmem: readwrite, inaccessiblemem: readwrite) }
 ; CHECK: attributes #30 = { allocsize(0) }
 ; CHECK: attributes #31 = { allocsize(0,1) }
-; CHECK: attributes #32 = { writeonly }
+; CHECK: attributes #32 = { memory(write) }
 ; CHECK: attributes #33 = { speculatable }
 ; CHECK: attributes #34 = { sanitize_hwaddress }
 ; CHECK: attributes #35 = { shadowcallstack }

diff  --git a/llvm/test/Bitcode/compatibility-3.6.ll b/llvm/test/Bitcode/compatibility-3.6.ll
index edc363fc50354..932f63d80e344 100644
--- a/llvm/test/Bitcode/compatibility-3.6.ll
+++ b/llvm/test/Bitcode/compatibility-3.6.ll
@@ -1168,8 +1168,8 @@ define void @intrinsics.codegen() {
 ; CHECK: attributes #15 = { nounwind }
 ; CHECK: attributes #16 = { noinline optnone }
 ; CHECK: attributes #17 = { optsize }
-; CHECK: attributes #18 = { readnone }
-; CHECK: attributes #19 = { readonly }
+; CHECK: attributes #18 = { memory(none) }
+; CHECK: attributes #19 = { memory(read) }
 ; CHECK: attributes #20 = { returns_twice }
 ; CHECK: attributes #21 = { sanitize_address }
 ; CHECK: attributes #22 = { sanitize_memory }
@@ -1179,12 +1179,12 @@ define void @intrinsics.codegen() {
 ; CHECK: attributes #26 = { sspstrong }
 ; CHECK: attributes #27 = { uwtable }
 ; CHECK: attributes #28 = { "cpu"="cortex-a8" }
-; CHECK: attributes #29 = { nocallback nofree nosync nounwind readnone willreturn }
+; CHECK: attributes #29 = { nocallback nofree nosync nounwind willreturn memory(none) }
 ; CHECK: attributes #30 = { nocallback nofree nosync nounwind willreturn }
-; CHECK: attributes #31 = { argmemonly nounwind readonly }
-; CHECK: attributes #32 = { argmemonly nounwind }
-; CHECK: attributes #33 = { nounwind readonly }
-; CHECK: attributes #34 = { inaccessiblemem_or_argmemonly nocallback nofree nosync nounwind willreturn }
+; CHECK: attributes #31 = { nounwind memory(argmem: read) }
+; CHECK: attributes #32 = { nounwind memory(argmem: readwrite) }
+; CHECK: attributes #33 = { nounwind memory(read) }
+; CHECK: attributes #34 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite) }
 ; CHECK: attributes #35 = { builtin }
 
 ;; Metadata

diff  --git a/llvm/test/Bitcode/compatibility-3.7.ll b/llvm/test/Bitcode/compatibility-3.7.ll
index 81b0551e7045f..f32ae0a4668d5 100644
--- a/llvm/test/Bitcode/compatibility-3.7.ll
+++ b/llvm/test/Bitcode/compatibility-3.7.ll
@@ -1229,8 +1229,8 @@ define void @misc.metadata() {
 ; CHECK: attributes #16 = { nounwind }
 ; CHECK: attributes #17 = { noinline optnone }
 ; CHECK: attributes #18 = { optsize }
-; CHECK: attributes #19 = { readnone }
-; CHECK: attributes #20 = { readonly }
+; CHECK: attributes #19 = { memory(none) }
+; CHECK: attributes #20 = { memory(read) }
 ; CHECK: attributes #21 = { returns_twice }
 ; CHECK: attributes #22 = { safestack }
 ; CHECK: attributes #23 = { sanitize_address }
@@ -1242,12 +1242,12 @@ define void @misc.metadata() {
 ; CHECK: attributes #29 = { "thunk" }
 ; CHECK: attributes #30 = { uwtable }
 ; CHECK: attributes #31 = { "cpu"="cortex-a8" }
-; CHECK: attributes #32 = { nocallback nofree nosync nounwind readnone willreturn }
+; CHECK: attributes #32 = { nocallback nofree nosync nounwind willreturn memory(none) }
 ; CHECK: attributes #33 = { nocallback nofree nosync nounwind willreturn }
-; CHECK: attributes #34 = { argmemonly nounwind readonly }
-; CHECK: attributes #35 = { argmemonly nounwind }
-; CHECK: attributes #36 = { nounwind readonly }
-; CHECK: attributes #37 = { inaccessiblemem_or_argmemonly nocallback nofree nosync nounwind willreturn }
+; CHECK: attributes #34 = { nounwind memory(argmem: read) }
+; CHECK: attributes #35 = { nounwind memory(argmem: readwrite) }
+; CHECK: attributes #36 = { nounwind memory(read) }
+; CHECK: attributes #37 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite) }
 ; CHECK: attributes #38 = { builtin }
 
 ;; Metadata

diff  --git a/llvm/test/Bitcode/compatibility-3.8.ll b/llvm/test/Bitcode/compatibility-3.8.ll
index 3cab693081fe6..8e9a1a193e299 100644
--- a/llvm/test/Bitcode/compatibility-3.8.ll
+++ b/llvm/test/Bitcode/compatibility-3.8.ll
@@ -1536,8 +1536,8 @@ normal:
 ; CHECK: attributes #16 = { nounwind }
 ; CHECK: attributes #17 = { noinline optnone }
 ; CHECK: attributes #18 = { optsize }
-; CHECK: attributes #19 = { readnone }
-; CHECK: attributes #20 = { readonly }
+; CHECK: attributes #19 = { memory(none) }
+; CHECK: attributes #20 = { memory(read) }
 ; CHECK: attributes #21 = { returns_twice }
 ; CHECK: attributes #22 = { safestack }
 ; CHECK: attributes #23 = { sanitize_address }
@@ -1550,14 +1550,14 @@ normal:
 ; CHECK: attributes #30 = { uwtable }
 ; CHECK: attributes #31 = { "cpu"="cortex-a8" }
 ; CHECK: attributes #32 = { norecurse }
-; CHECK: attributes #33 = { inaccessiblememonly }
-; CHECK: attributes #34 = { inaccessiblemem_or_argmemonly }
-; CHECK: attributes #35 = { nocallback nofree nosync nounwind readnone willreturn }
+; CHECK: attributes #33 = { memory(inaccessiblemem: readwrite) }
+; CHECK: attributes #34 = { memory(argmem: readwrite, inaccessiblemem: readwrite) }
+; CHECK: attributes #35 = { nocallback nofree nosync nounwind willreturn memory(none) }
 ; CHECK: attributes #36 = { nocallback nofree nosync nounwind willreturn }
-; CHECK: attributes #37 = { argmemonly nounwind readonly }
-; CHECK: attributes #38 = { argmemonly nounwind }
-; CHECK: attributes #39 = { nounwind readonly }
-; CHECK: attributes #40 = { inaccessiblemem_or_argmemonly nocallback nofree nosync nounwind willreturn }
+; CHECK: attributes #37 = { nounwind memory(argmem: read) }
+; CHECK: attributes #38 = { nounwind memory(argmem: readwrite) }
+; CHECK: attributes #39 = { nounwind memory(read) }
+; CHECK: attributes #40 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite) }
 ; CHECK: attributes #41 = { builtin }
 
 ;; Metadata

diff  --git a/llvm/test/Bitcode/compatibility-3.9.ll b/llvm/test/Bitcode/compatibility-3.9.ll
index 0411f5decca7f..ebb50e40d2fe7 100644
--- a/llvm/test/Bitcode/compatibility-3.9.ll
+++ b/llvm/test/Bitcode/compatibility-3.9.ll
@@ -1609,8 +1609,8 @@ declare void @f.writeonly() writeonly
 ; CHECK: attributes #16 = { nounwind }
 ; CHECK: attributes #17 = { noinline optnone }
 ; CHECK: attributes #18 = { optsize }
-; CHECK: attributes #19 = { readnone }
-; CHECK: attributes #20 = { readonly }
+; CHECK: attributes #19 = { memory(none) }
+; CHECK: attributes #20 = { memory(read) }
 ; CHECK: attributes #21 = { returns_twice }
 ; CHECK: attributes #22 = { safestack }
 ; CHECK: attributes #23 = { sanitize_address }
@@ -1623,15 +1623,15 @@ declare void @f.writeonly() writeonly
 ; CHECK: attributes #30 = { uwtable }
 ; CHECK: attributes #31 = { "cpu"="cortex-a8" }
 ; CHECK: attributes #32 = { norecurse }
-; CHECK: attributes #33 = { inaccessiblememonly }
-; CHECK: attributes #34 = { inaccessiblemem_or_argmemonly }
-; CHECK: attributes #35 = { nocallback nofree nosync nounwind readnone willreturn }
+; CHECK: attributes #33 = { memory(inaccessiblemem: readwrite) }
+; CHECK: attributes #34 = { memory(argmem: readwrite, inaccessiblemem: readwrite) }
+; CHECK: attributes #35 = { nocallback nofree nosync nounwind willreturn memory(none) }
 ; CHECK: attributes #36 = { nocallback nofree nosync nounwind willreturn }
-; CHECK: attributes #37 = { argmemonly nounwind readonly }
-; CHECK: attributes #38 = { argmemonly nounwind }
-; CHECK: attributes #39 = { nounwind readonly }
-; CHECK: attributes #40 = { writeonly }
-; CHECK: attributes #41 = { inaccessiblemem_or_argmemonly nocallback nofree nosync nounwind willreturn }
+; CHECK: attributes #37 = { nounwind memory(argmem: read) }
+; CHECK: attributes #38 = { nounwind memory(argmem: readwrite) }
+; CHECK: attributes #39 = { nounwind memory(read) }
+; CHECK: attributes #40 = { memory(write) }
+; CHECK: attributes #41 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite) }
 ; CHECK: attributes #42 = { builtin }
 
 ;; Metadata

diff  --git a/llvm/test/Bitcode/compatibility-4.0.ll b/llvm/test/Bitcode/compatibility-4.0.ll
index 4ce6a436c9c49..3c3f943e7e8a4 100644
--- a/llvm/test/Bitcode/compatibility-4.0.ll
+++ b/llvm/test/Bitcode/compatibility-4.0.ll
@@ -1634,8 +1634,8 @@ define i8** @constexpr() {
 ; CHECK: attributes #16 = { nounwind }
 ; CHECK: attributes #17 = { noinline optnone }
 ; CHECK: attributes #18 = { optsize }
-; CHECK: attributes #19 = { readnone }
-; CHECK: attributes #20 = { readonly }
+; CHECK: attributes #19 = { memory(none) }
+; CHECK: attributes #20 = { memory(read) }
 ; CHECK: attributes #21 = { returns_twice }
 ; CHECK: attributes #22 = { safestack }
 ; CHECK: attributes #23 = { sanitize_address }
@@ -1648,15 +1648,15 @@ define i8** @constexpr() {
 ; CHECK: attributes #30 = { uwtable }
 ; CHECK: attributes #31 = { "cpu"="cortex-a8" }
 ; CHECK: attributes #32 = { norecurse }
-; CHECK: attributes #33 = { inaccessiblememonly }
-; CHECK: attributes #34 = { inaccessiblemem_or_argmemonly }
-; CHECK: attributes #35 = { nocallback nofree nosync nounwind readnone willreturn }
+; CHECK: attributes #33 = { memory(inaccessiblemem: readwrite) }
+; CHECK: attributes #34 = { memory(argmem: readwrite, inaccessiblemem: readwrite) }
+; CHECK: attributes #35 = { nocallback nofree nosync nounwind willreturn memory(none) }
 ; CHECK: attributes #36 = { nocallback nofree nosync nounwind willreturn }
-; CHECK: attributes #37 = { argmemonly nounwind readonly }
-; CHECK: attributes #38 = { argmemonly nounwind }
-; CHECK: attributes #39 = { nounwind readonly }
-; CHECK: attributes #40 = { writeonly }
-; CHECK: attributes #41 = { inaccessiblemem_or_argmemonly nocallback nofree nosync nounwind willreturn }
+; CHECK: attributes #37 = { nounwind memory(argmem: read) }
+; CHECK: attributes #38 = { nounwind memory(argmem: readwrite) }
+; CHECK: attributes #39 = { nounwind memory(read) }
+; CHECK: attributes #40 = { memory(write) }
+; CHECK: attributes #41 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite) }
 ; CHECK: attributes #42 = { builtin }
 
 ;; Metadata

diff  --git a/llvm/test/Bitcode/compatibility-5.0.ll b/llvm/test/Bitcode/compatibility-5.0.ll
index 4a6377dd718d8..cc7e6fe0ea897 100644
--- a/llvm/test/Bitcode/compatibility-5.0.ll
+++ b/llvm/test/Bitcode/compatibility-5.0.ll
@@ -1649,8 +1649,8 @@ define i8** @constexpr() {
 ; CHECK: attributes #16 = { nounwind }
 ; CHECK: attributes #17 = { noinline optnone }
 ; CHECK: attributes #18 = { optsize }
-; CHECK: attributes #19 = { readnone }
-; CHECK: attributes #20 = { readonly }
+; CHECK: attributes #19 = { memory(none) }
+; CHECK: attributes #20 = { memory(read) }
 ; CHECK: attributes #21 = { returns_twice }
 ; CHECK: attributes #22 = { safestack }
 ; CHECK: attributes #23 = { sanitize_address }
@@ -1663,16 +1663,16 @@ define i8** @constexpr() {
 ; CHECK: attributes #30 = { uwtable }
 ; CHECK: attributes #31 = { "cpu"="cortex-a8" }
 ; CHECK: attributes #32 = { norecurse }
-; CHECK: attributes #33 = { inaccessiblememonly }
-; CHECK: attributes #34 = { inaccessiblemem_or_argmemonly }
-; CHECK: attributes #35 = { nocallback nofree nosync nounwind readnone willreturn }
-; CHECK: attributes #36 = { nocallback nofree nosync  nounwind willreturn }
-; CHECK: attributes #37 = { argmemonly nounwind readonly }
-; CHECK: attributes #38 = { argmemonly nounwind }
-; CHECK: attributes #39 = { nounwind readonly }
-; CHECK: attributes #40 = { writeonly }
+; CHECK: attributes #33 = { memory(inaccessiblemem: readwrite) }
+; CHECK: attributes #34 = { memory(argmem: readwrite, inaccessiblemem: readwrite) }
+; CHECK: attributes #35 = { nocallback nofree nosync nounwind willreturn memory(none) }
+; CHECK: attributes #36 = { nocallback nofree nosync nounwind willreturn }
+; CHECK: attributes #37 = { nounwind memory(argmem: read) }
+; CHECK: attributes #38 = { nounwind memory(argmem: readwrite) }
+; CHECK: attributes #39 = { nounwind memory(read) }
+; CHECK: attributes #40 = { memory(write) }
 ; CHECK: attributes #41 = { speculatable }
-; CHECK: attributes #42 = { inaccessiblemem_or_argmemonly nocallback nofree nosync nounwind willreturn }
+; CHECK: attributes #42 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite) }
 ; CHECK: attributes #43 = { builtin }
 
 ;; Metadata

diff  --git a/llvm/test/Bitcode/compatibility-6.0.ll b/llvm/test/Bitcode/compatibility-6.0.ll
index 17ad8db81a0ab..125cfac5e9b54 100644
--- a/llvm/test/Bitcode/compatibility-6.0.ll
+++ b/llvm/test/Bitcode/compatibility-6.0.ll
@@ -1660,8 +1660,8 @@ define i8** @constexpr() {
 ; CHECK: attributes #16 = { nounwind }
 ; CHECK: attributes #17 = { noinline optnone }
 ; CHECK: attributes #18 = { optsize }
-; CHECK: attributes #19 = { readnone }
-; CHECK: attributes #20 = { readonly }
+; CHECK: attributes #19 = { memory(none) }
+; CHECK: attributes #20 = { memory(read) }
 ; CHECK: attributes #21 = { returns_twice }
 ; CHECK: attributes #22 = { safestack }
 ; CHECK: attributes #23 = { sanitize_address }
@@ -1674,16 +1674,16 @@ define i8** @constexpr() {
 ; CHECK: attributes #30 = { uwtable }
 ; CHECK: attributes #31 = { "cpu"="cortex-a8" }
 ; CHECK: attributes #32 = { norecurse }
-; CHECK: attributes #33 = { inaccessiblememonly }
-; CHECK: attributes #34 = { inaccessiblemem_or_argmemonly }
-; CHECK: attributes #35 = { nocallback nofree nosync nounwind readnone willreturn }
+; CHECK: attributes #33 = { memory(inaccessiblemem: readwrite) }
+; CHECK: attributes #34 = { memory(argmem: readwrite, inaccessiblemem: readwrite) }
+; CHECK: attributes #35 = { nocallback nofree nosync nounwind willreturn memory(none) }
 ; CHECK: attributes #36 = { nocallback nofree nosync nounwind willreturn }
-; CHECK: attributes #37 = { argmemonly nounwind readonly }
-; CHECK: attributes #38 = { argmemonly nounwind }
-; CHECK: attributes #39 = { nounwind readonly }
-; CHECK: attributes #40 = { writeonly }
+; CHECK: attributes #37 = { nounwind memory(argmem: read) }
+; CHECK: attributes #38 = { nounwind memory(argmem: readwrite) }
+; CHECK: attributes #39 = { nounwind memory(read) }
+; CHECK: attributes #40 = { memory(write) }
 ; CHECK: attributes #41 = { speculatable }
-; CHECK: attributes #42 = { inaccessiblemem_or_argmemonly nocallback nofree nosync nounwind willreturn }
+; CHECK: attributes #42 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite) }
 ; CHECK: attributes #43 = { builtin }
 
 ;; Metadata

diff  --git a/llvm/test/Bitcode/compatibility.ll b/llvm/test/Bitcode/compatibility.ll
index ac97f9d79e7ad..60c2e375f4c22 100644
--- a/llvm/test/Bitcode/compatibility.ll
+++ b/llvm/test/Bitcode/compatibility.ll
@@ -1985,8 +1985,8 @@ declare void @f.allockind() allockind("alloc,uninitialized")
 ; CHECK: attributes #16 = { nounwind }
 ; CHECK: attributes #17 = { noinline optnone }
 ; CHECK: attributes #18 = { optsize }
-; CHECK: attributes #19 = { readnone }
-; CHECK: attributes #20 = { readonly }
+; CHECK: attributes #19 = { memory(none) }
+; CHECK: attributes #20 = { memory(read) }
 ; CHECK: attributes #21 = { returns_twice }
 ; CHECK: attributes #22 = { safestack }
 ; CHECK: attributes #23 = { sanitize_address }
@@ -1999,15 +1999,15 @@ declare void @f.allockind() allockind("alloc,uninitialized")
 ; CHECK: attributes #30 = { uwtable }
 ; CHECK: attributes #31 = { "cpu"="cortex-a8" }
 ; CHECK: attributes #32 = { norecurse }
-; CHECK: attributes #33 = { inaccessiblememonly }
-; CHECK: attributes #34 = { inaccessiblemem_or_argmemonly }
-; CHECK: attributes #35 = { nocallback nofree nosync nounwind readnone willreturn }
+; CHECK: attributes #33 = { memory(inaccessiblemem: readwrite) }
+; CHECK: attributes #34 = { memory(argmem: readwrite, inaccessiblemem: readwrite) }
+; CHECK: attributes #35 = { nocallback nofree nosync nounwind willreturn memory(none) }
 ; CHECK: attributes #36 = { nocallback nofree nosync nounwind willreturn }
-; CHECK: attributes #37 = { argmemonly nounwind readonly }
-; CHECK: attributes #38 = { argmemonly nounwind }
-; CHECK: attributes #39 = { nounwind readonly }
-; CHECK: attributes #40 = { inaccessiblemem_or_argmemonly nocallback nofree nosync nounwind willreturn }
-; CHECK: attributes #41 = { writeonly }
+; CHECK: attributes #37 = { nounwind memory(argmem: read) }
+; CHECK: attributes #38 = { nounwind memory(argmem: readwrite) }
+; CHECK: attributes #39 = { nounwind memory(read) }
+; CHECK: attributes #40 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite) }
+; CHECK: attributes #41 = { memory(write) }
 ; CHECK: attributes #42 = { speculatable }
 ; CHECK: attributes #43 = { strictfp }
 ; CHECK: attributes #44 = { nosanitize_coverage }

diff  --git a/llvm/test/Bitcode/ptest-new.ll b/llvm/test/Bitcode/ptest-new.ll
index 68d53ff3385b8..952ea795d62fb 100644
--- a/llvm/test/Bitcode/ptest-new.ll
+++ b/llvm/test/Bitcode/ptest-new.ll
@@ -23,4 +23,4 @@ declare i32 @llvm.x86.sse41.ptestz(<2 x i64>, <2 x i64>) nounwind readnone
 declare i32 @llvm.x86.sse41.ptestnzc(<2 x i64>, <2 x i64>) nounwind readnone
 
 ; CHECK: attributes #0 = { nounwind }
-; CHECK: attributes #1 = { nocallback nofree nosync nounwind readnone willreturn }
+; CHECK: attributes #1 = { nocallback nofree nosync nounwind willreturn memory(none) }

diff  --git a/llvm/test/Bitcode/ptest-old.ll b/llvm/test/Bitcode/ptest-old.ll
index a41afc0c39bf8..b09fac9c397b1 100644
--- a/llvm/test/Bitcode/ptest-old.ll
+++ b/llvm/test/Bitcode/ptest-old.ll
@@ -24,4 +24,4 @@ declare i32 @llvm.x86.sse41.ptestz(<4 x float>, <4 x float>) nounwind readnone
 declare i32 @llvm.x86.sse41.ptestnzc(<4 x float>, <4 x float>) nounwind readnone
 
 ; CHECK: attributes #0 = { nounwind }
-; CHECK: attributes #1 = { nocallback nofree nosync nounwind readnone willreturn }
+; CHECK: attributes #1 = { nocallback nofree nosync nounwind willreturn memory(none) }

diff  --git a/llvm/test/Bitcode/upgrade-frame-pointer.ll b/llvm/test/Bitcode/upgrade-frame-pointer.ll
index 5251db9ec2db1..f723c33d644a8 100644
--- a/llvm/test/Bitcode/upgrade-frame-pointer.ll
+++ b/llvm/test/Bitcode/upgrade-frame-pointer.ll
@@ -27,7 +27,7 @@ attributes #1 = { readnone "no-frame-pointer-elim"="false" "no-frame-pointer-eli
 
 ;; Other attributes (e.g. readnone) are unaffected.
 ; CHECK: attributes #0 = { "frame-pointer"="all" }
-; CHECK: attributes #1 = { readnone "frame-pointer"="all" }
+; CHECK: attributes #1 = { memory(none) "frame-pointer"="all" }
 ; CHECK: attributes #2 = { "frame-pointer"="non-leaf" }
-; CHECK: attributes #3 = { readnone "frame-pointer"="non-leaf" }
+; CHECK: attributes #3 = { memory(none) "frame-pointer"="non-leaf" }
 ; CHECK: attributes #4 = { "frame-pointer"="none" }

diff  --git a/llvm/test/Bitcode/upgrade-invariant-group-barrier.ll b/llvm/test/Bitcode/upgrade-invariant-group-barrier.ll
index 3b4e9aed3b00b..b9e3c4fb5d6bb 100644
--- a/llvm/test/Bitcode/upgrade-invariant-group-barrier.ll
+++ b/llvm/test/Bitcode/upgrade-invariant-group-barrier.ll
@@ -13,9 +13,9 @@ define void @test(i8* %p1, i16* %p16) {
   ret void
 }
 
-; CHECK: Function Attrs: inaccessiblememonly nocallback nofree nosync nounwind speculatable willreturn
+; CHECK: Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(inaccessiblemem: readwrite)
 ; CHECK: declare i8* @llvm.launder.invariant.group.p0i8(i8*)
-; CHECK: Function Attrs: inaccessiblememonly nocallback nofree nosync nounwind speculatable willreturn
+; CHECK: Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(inaccessiblemem: readwrite)
 ; CHECK: declare i16* @llvm.launder.invariant.group.p0i16(i16*)
 declare i8* @llvm.invariant.group.barrier(i8*)
 declare i8* @llvm.invariant.group.barrier.p0i8(i8*)

diff  --git a/llvm/test/CodeGen/AMDGPU/addrspacecast-constantexpr.ll b/llvm/test/CodeGen/AMDGPU/addrspacecast-constantexpr.ll
index 1d1048ada8709..b3be3702b3f52 100644
--- a/llvm/test/CodeGen/AMDGPU/addrspacecast-constantexpr.ll
+++ b/llvm/test/CodeGen/AMDGPU/addrspacecast-constantexpr.ll
@@ -226,10 +226,10 @@ define i32 addrspace(3)* @ret_constant_cast_group_gv_gep_to_flat_to_group() #1 {
 attributes #0 = { argmemonly nounwind }
 attributes #1 = { nounwind }
 ;.
-; AKF_HSA: attributes #[[ATTR0:[0-9]+]] = { argmemonly nocallback nofree nounwind willreturn }
+; AKF_HSA: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
 ; AKF_HSA: attributes #[[ATTR1]] = { nounwind }
 ;.
-; ATTRIBUTOR_HSA: attributes #[[ATTR0:[0-9]+]] = { argmemonly nocallback nofree nounwind willreturn }
+; ATTRIBUTOR_HSA: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
 ; ATTRIBUTOR_HSA: attributes #[[ATTR1]] = { nounwind "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "amdgpu-no-heap-ptr" "amdgpu-no-hostcall-ptr" "amdgpu-no-implicitarg-ptr" "amdgpu-no-lds-kernel-id" "amdgpu-no-multigrid-sync-arg" "amdgpu-no-queue-ptr" "amdgpu-no-workgroup-id-x" "amdgpu-no-workgroup-id-y" "amdgpu-no-workgroup-id-z" "amdgpu-no-workitem-id-x" "amdgpu-no-workitem-id-y" "amdgpu-no-workitem-id-z" "uniform-work-group-size"="false" }
 ; ATTRIBUTOR_HSA: attributes #[[ATTR2]] = { nounwind "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "amdgpu-no-heap-ptr" "amdgpu-no-hostcall-ptr" "amdgpu-no-implicitarg-ptr" "amdgpu-no-lds-kernel-id" "amdgpu-no-multigrid-sync-arg" "amdgpu-no-workgroup-id-x" "amdgpu-no-workgroup-id-y" "amdgpu-no-workgroup-id-z" "amdgpu-no-workitem-id-x" "amdgpu-no-workitem-id-y" "amdgpu-no-workitem-id-z" "uniform-work-group-size"="false" }
 ;.

diff  --git a/llvm/test/CodeGen/AMDGPU/annotate-kernel-features-hsa-call.ll b/llvm/test/CodeGen/AMDGPU/annotate-kernel-features-hsa-call.ll
index b05054d8a03d5..163bd3ee063fb 100644
--- a/llvm/test/CodeGen/AMDGPU/annotate-kernel-features-hsa-call.ll
+++ b/llvm/test/CodeGen/AMDGPU/annotate-kernel-features-hsa-call.ll
@@ -928,7 +928,7 @@ attributes #4 = { nounwind sanitize_address }
 attributes #5 = { nounwind sanitize_address "amdgpu-no-implicitarg-ptr" }
 
 ;.
-; AKF_HSA: attributes #[[ATTR0:[0-9]+]] = { nounwind readnone speculatable willreturn }
+; AKF_HSA: attributes #[[ATTR0:[0-9]+]] = { nounwind speculatable willreturn memory(none) }
 ; AKF_HSA: attributes #[[ATTR1]] = { nounwind "target-cpu"="fiji" }
 ; AKF_HSA: attributes #[[ATTR2]] = { nounwind "target-cpu"="gfx900" }
 ; AKF_HSA: attributes #[[ATTR3]] = { nounwind }
@@ -936,7 +936,7 @@ attributes #5 = { nounwind sanitize_address "amdgpu-no-implicitarg-ptr" }
 ; AKF_HSA: attributes #[[ATTR5]] = { nounwind sanitize_address }
 ; AKF_HSA: attributes #[[ATTR6:[0-9]+]] = { nounwind sanitize_address "amdgpu-no-implicitarg-ptr" }
 ;.
-; ATTRIBUTOR_HSA: attributes #[[ATTR0:[0-9]+]] = { nounwind readnone speculatable willreturn }
+; ATTRIBUTOR_HSA: attributes #[[ATTR0:[0-9]+]] = { nounwind speculatable willreturn memory(none) }
 ; ATTRIBUTOR_HSA: attributes #[[ATTR1]] = { nounwind "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "amdgpu-no-heap-ptr" "amdgpu-no-hostcall-ptr" "amdgpu-no-implicitarg-ptr" "amdgpu-no-lds-kernel-id" "amdgpu-no-multigrid-sync-arg" "amdgpu-no-queue-ptr" "amdgpu-no-workgroup-id-x" "amdgpu-no-workgroup-id-y" "amdgpu-no-workgroup-id-z" "amdgpu-no-workitem-id-y" "amdgpu-no-workitem-id-z" "target-cpu"="fiji" "uniform-work-group-size"="false" }
 ; ATTRIBUTOR_HSA: attributes #[[ATTR2]] = { nounwind "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "amdgpu-no-heap-ptr" "amdgpu-no-hostcall-ptr" "amdgpu-no-implicitarg-ptr" "amdgpu-no-lds-kernel-id" "amdgpu-no-multigrid-sync-arg" "amdgpu-no-queue-ptr" "amdgpu-no-workgroup-id-x" "amdgpu-no-workgroup-id-y" "amdgpu-no-workgroup-id-z" "amdgpu-no-workitem-id-x" "amdgpu-no-workitem-id-z" "target-cpu"="fiji" "uniform-work-group-size"="false" }
 ; ATTRIBUTOR_HSA: attributes #[[ATTR3]] = { nounwind "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "amdgpu-no-heap-ptr" "amdgpu-no-hostcall-ptr" "amdgpu-no-implicitarg-ptr" "amdgpu-no-lds-kernel-id" "amdgpu-no-multigrid-sync-arg" "amdgpu-no-queue-ptr" "amdgpu-no-workgroup-id-x" "amdgpu-no-workgroup-id-y" "amdgpu-no-workgroup-id-z" "amdgpu-no-workitem-id-x" "amdgpu-no-workitem-id-y" "target-cpu"="fiji" "uniform-work-group-size"="false" }

diff  --git a/llvm/test/CodeGen/AMDGPU/annotate-kernel-features-hsa.ll b/llvm/test/CodeGen/AMDGPU/annotate-kernel-features-hsa.ll
index 61ba99bc16f7d..4acf31b249590 100644
--- a/llvm/test/CodeGen/AMDGPU/annotate-kernel-features-hsa.ll
+++ b/llvm/test/CodeGen/AMDGPU/annotate-kernel-features-hsa.ll
@@ -642,11 +642,11 @@ attributes #0 = { nounwind readnone speculatable }
 attributes #1 = { nounwind }
 
 ;.
-; AKF_HSA: attributes #[[ATTR0:[0-9]+]] = { nounwind readnone speculatable willreturn }
+; AKF_HSA: attributes #[[ATTR0:[0-9]+]] = { nounwind speculatable willreturn memory(none) }
 ; AKF_HSA: attributes #[[ATTR1]] = { nounwind }
 ; AKF_HSA: attributes #[[ATTR2]] = { nounwind "amdgpu-stack-objects" }
 ;.
-; ATTRIBUTOR_HSA: attributes #[[ATTR0:[0-9]+]] = { nounwind readnone speculatable willreturn }
+; ATTRIBUTOR_HSA: attributes #[[ATTR0:[0-9]+]] = { nounwind speculatable willreturn memory(none) }
 ; ATTRIBUTOR_HSA: attributes #[[ATTR1]] = { nounwind "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "amdgpu-no-heap-ptr" "amdgpu-no-hostcall-ptr" "amdgpu-no-implicitarg-ptr" "amdgpu-no-lds-kernel-id" "amdgpu-no-multigrid-sync-arg" "amdgpu-no-queue-ptr" "amdgpu-no-workgroup-id-x" "amdgpu-no-workgroup-id-y" "amdgpu-no-workgroup-id-z" "amdgpu-no-workitem-id-x" "amdgpu-no-workitem-id-y" "amdgpu-no-workitem-id-z" "uniform-work-group-size"="false" }
 ; ATTRIBUTOR_HSA: attributes #[[ATTR2]] = { nounwind "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "amdgpu-no-heap-ptr" "amdgpu-no-hostcall-ptr" "amdgpu-no-implicitarg-ptr" "amdgpu-no-lds-kernel-id" "amdgpu-no-multigrid-sync-arg" "amdgpu-no-queue-ptr" "amdgpu-no-workgroup-id-x" "amdgpu-no-workgroup-id-z" "amdgpu-no-workitem-id-x" "amdgpu-no-workitem-id-y" "amdgpu-no-workitem-id-z" "uniform-work-group-size"="false" }
 ; ATTRIBUTOR_HSA: attributes #[[ATTR3]] = { nounwind "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "amdgpu-no-heap-ptr" "amdgpu-no-hostcall-ptr" "amdgpu-no-implicitarg-ptr" "amdgpu-no-lds-kernel-id" "amdgpu-no-multigrid-sync-arg" "amdgpu-no-queue-ptr" "amdgpu-no-workgroup-id-x" "amdgpu-no-workgroup-id-y" "amdgpu-no-workitem-id-x" "amdgpu-no-workitem-id-y" "amdgpu-no-workitem-id-z" "uniform-work-group-size"="false" }

diff  --git a/llvm/test/CodeGen/AMDGPU/annotate-kernel-features.ll b/llvm/test/CodeGen/AMDGPU/annotate-kernel-features.ll
index 33ad439b0d977..9d8d4a1064032 100644
--- a/llvm/test/CodeGen/AMDGPU/annotate-kernel-features.ll
+++ b/llvm/test/CodeGen/AMDGPU/annotate-kernel-features.ll
@@ -414,10 +414,10 @@ attributes #1 = { nounwind }
 ; NOHSA: attributes #[[ATTR8]] = { nounwind "amdgpu-work-item-id-y" "amdgpu-work-item-id-z" "uniform-work-group-size"="false" }
 ; NOHSA: attributes #[[ATTR9]] = { nounwind "amdgpu-work-group-id-y" "amdgpu-work-group-id-z" "amdgpu-work-item-id-y" "amdgpu-work-item-id-z" "uniform-work-group-size"="false" }
 ;.
-; AKF_CHECK: attributes #[[ATTR0:[0-9]+]] = { nounwind readnone speculatable willreturn }
+; AKF_CHECK: attributes #[[ATTR0:[0-9]+]] = { nounwind speculatable willreturn memory(none) }
 ; AKF_CHECK: attributes #[[ATTR1]] = { nounwind }
 ;.
-; ATTRIBUTOR_CHECK: attributes #[[ATTR0:[0-9]+]] = { nounwind readnone speculatable willreturn }
+; ATTRIBUTOR_CHECK: attributes #[[ATTR0:[0-9]+]] = { nounwind speculatable willreturn memory(none) }
 ; ATTRIBUTOR_CHECK: attributes #[[ATTR1]] = { nounwind "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "amdgpu-no-heap-ptr" "amdgpu-no-hostcall-ptr" "amdgpu-no-implicitarg-ptr" "amdgpu-no-lds-kernel-id" "amdgpu-no-multigrid-sync-arg" "amdgpu-no-queue-ptr" "amdgpu-no-workgroup-id-x" "amdgpu-no-workgroup-id-y" "amdgpu-no-workgroup-id-z" "amdgpu-no-workitem-id-x" "amdgpu-no-workitem-id-y" "amdgpu-no-workitem-id-z" "uniform-work-group-size"="false" }
 ; ATTRIBUTOR_CHECK: attributes #[[ATTR2]] = { nounwind "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "amdgpu-no-heap-ptr" "amdgpu-no-hostcall-ptr" "amdgpu-no-implicitarg-ptr" "amdgpu-no-lds-kernel-id" "amdgpu-no-multigrid-sync-arg" "amdgpu-no-queue-ptr" "amdgpu-no-workgroup-id-x" "amdgpu-no-workgroup-id-z" "amdgpu-no-workitem-id-x" "amdgpu-no-workitem-id-y" "amdgpu-no-workitem-id-z" "uniform-work-group-size"="false" }
 ; ATTRIBUTOR_CHECK: attributes #[[ATTR3]] = { nounwind "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "amdgpu-no-heap-ptr" "amdgpu-no-hostcall-ptr" "amdgpu-no-implicitarg-ptr" "amdgpu-no-lds-kernel-id" "amdgpu-no-multigrid-sync-arg" "amdgpu-no-queue-ptr" "amdgpu-no-workgroup-id-x" "amdgpu-no-workgroup-id-y" "amdgpu-no-workitem-id-x" "amdgpu-no-workitem-id-y" "amdgpu-no-workitem-id-z" "uniform-work-group-size"="false" }

diff  --git a/llvm/test/CodeGen/AMDGPU/inline-attr.ll b/llvm/test/CodeGen/AMDGPU/inline-attr.ll
index 68bc38bd9f4a0..222a8a26f7f82 100644
--- a/llvm/test/CodeGen/AMDGPU/inline-attr.ll
+++ b/llvm/test/CodeGen/AMDGPU/inline-attr.ll
@@ -6,14 +6,14 @@
 ; GCN: define amdgpu_kernel void @caller(float addrspace(1)* nocapture %p) local_unnamed_addr #1 {
 ; GCN: %mul.i = fmul float %load, 1.500000e+01
 
-; UNSAFE: attributes #0 = { mustprogress nofree norecurse nosync nounwind readnone willreturn "unsafe-fp-math"="true" }
-; UNSAFE: attributes #1 = { argmemonly mustprogress nofree norecurse nosync nounwind willreturn "less-precise-fpmad"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="true" }
+; UNSAFE: attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(none) "unsafe-fp-math"="true" }
+; UNSAFE: attributes #1 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) "less-precise-fpmad"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="true" }
 
-; NOINFS: attributes #0 = { mustprogress nofree norecurse nosync nounwind readnone willreturn "no-infs-fp-math"="true" }
-; NOINFS: attributes #1 = { argmemonly mustprogress nofree norecurse nosync nounwind willreturn "less-precise-fpmad"="false" "no-infs-fp-math"="true" "no-nans-fp-math"="false" "unsafe-fp-math"="false" }
+; NOINFS: attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(none) "no-infs-fp-math"="true" }
+; NOINFS: attributes #1 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) "less-precise-fpmad"="false" "no-infs-fp-math"="true" "no-nans-fp-math"="false" "unsafe-fp-math"="false" }
 
-; NONANS: attributes #0 = { mustprogress nofree norecurse nosync nounwind readnone willreturn "no-nans-fp-math"="true" }
-; NONANS: attributes #1 = { argmemonly mustprogress nofree norecurse nosync nounwind willreturn "less-precise-fpmad"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="true" "unsafe-fp-math"="false" }
+; NONANS: attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(none) "no-nans-fp-math"="true" }
+; NONANS: attributes #1 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) "less-precise-fpmad"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="true" "unsafe-fp-math"="false" }
 
 define float @foo(float %x) #0 {
 entry:

diff  --git a/llvm/test/CodeGen/AMDGPU/pal-simple-indirect-call.ll b/llvm/test/CodeGen/AMDGPU/pal-simple-indirect-call.ll
index d9d511f72ae8e..aa3fff44b9f3e 100644
--- a/llvm/test/CodeGen/AMDGPU/pal-simple-indirect-call.ll
+++ b/llvm/test/CodeGen/AMDGPU/pal-simple-indirect-call.ll
@@ -69,8 +69,8 @@ declare i64 @llvm.amdgcn.s.getpc() #0
 
 attributes #0 = { nounwind readnone speculatable willreturn }
 ;.
-; AKF_GCN: attributes #[[ATTR0:[0-9]+]] = { nounwind readnone speculatable willreturn }
+; AKF_GCN: attributes #[[ATTR0:[0-9]+]] = { nounwind speculatable willreturn memory(none) }
 ;.
 ; ATTRIBUTOR_GCN: attributes #[[ATTR0]] = { "uniform-work-group-size"="false" }
-; ATTRIBUTOR_GCN: attributes #[[ATTR1:[0-9]+]] = { nounwind readnone speculatable willreturn }
+; ATTRIBUTOR_GCN: attributes #[[ATTR1:[0-9]+]] = { nounwind speculatable willreturn memory(none) }
 ;.

diff  --git a/llvm/test/CodeGen/AMDGPU/simplify-libcalls.ll b/llvm/test/CodeGen/AMDGPU/simplify-libcalls.ll
index 76e1288bf7ac0..95307c84bf948 100644
--- a/llvm/test/CodeGen/AMDGPU/simplify-libcalls.ll
+++ b/llvm/test/CodeGen/AMDGPU/simplify-libcalls.ll
@@ -791,5 +791,5 @@ entry:
 ; GCN-PRELINK: declare float @_Z11native_sqrtf(float) local_unnamed_addr #[[$NOUNWIND_READONLY]]
 
 ; GCN-PRELINK: attributes #[[$NOUNWIND]] = { nounwind }
-; GCN-PRELINK: attributes #[[$NOUNWIND_READONLY]] = { nofree nounwind readonly }
+; GCN-PRELINK: attributes #[[$NOUNWIND_READONLY]] = { nofree nounwind memory(read) }
 attributes #0 = { nounwind }

diff  --git a/llvm/test/CodeGen/AMDGPU/uniform-work-group-recursion-test.ll b/llvm/test/CodeGen/AMDGPU/uniform-work-group-recursion-test.ll
index 9367b4fd47bbb..c28aa55e346f2 100644
--- a/llvm/test/CodeGen/AMDGPU/uniform-work-group-recursion-test.ll
+++ b/llvm/test/CodeGen/AMDGPU/uniform-work-group-recursion-test.ll
@@ -101,7 +101,7 @@ define amdgpu_kernel void @kernel(i32 addrspace(1)* %m) #1 {
 attributes #0 = { nounwind readnone }
 attributes #1 = { "uniform-work-group-size"="true" }
 ;.
-; CHECK: attributes #[[ATTR0]] = { nounwind readnone "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "amdgpu-no-heap-ptr" "amdgpu-no-hostcall-ptr" "amdgpu-no-implicitarg-ptr" "amdgpu-no-lds-kernel-id" "amdgpu-no-multigrid-sync-arg" "amdgpu-no-queue-ptr" "amdgpu-no-workgroup-id-x" "amdgpu-no-workgroup-id-y" "amdgpu-no-workgroup-id-z" "amdgpu-no-workitem-id-x" "amdgpu-no-workitem-id-y" "amdgpu-no-workitem-id-z" "uniform-work-group-size"="false" }
-; CHECK: attributes #[[ATTR1]] = { nounwind readnone "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "amdgpu-no-heap-ptr" "amdgpu-no-hostcall-ptr" "amdgpu-no-implicitarg-ptr" "amdgpu-no-lds-kernel-id" "amdgpu-no-multigrid-sync-arg" "amdgpu-no-queue-ptr" "amdgpu-no-workgroup-id-x" "amdgpu-no-workgroup-id-y" "amdgpu-no-workgroup-id-z" "amdgpu-no-workitem-id-x" "amdgpu-no-workitem-id-y" "amdgpu-no-workitem-id-z" "uniform-work-group-size"="true" }
+; CHECK: attributes #[[ATTR0]] = { nounwind memory(none) "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "amdgpu-no-heap-ptr" "amdgpu-no-hostcall-ptr" "amdgpu-no-implicitarg-ptr" "amdgpu-no-lds-kernel-id" "amdgpu-no-multigrid-sync-arg" "amdgpu-no-queue-ptr" "amdgpu-no-workgroup-id-x" "amdgpu-no-workgroup-id-y" "amdgpu-no-workgroup-id-z" "amdgpu-no-workitem-id-x" "amdgpu-no-workitem-id-y" "amdgpu-no-workitem-id-z" "uniform-work-group-size"="false" }
+; CHECK: attributes #[[ATTR1]] = { nounwind memory(none) "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "amdgpu-no-heap-ptr" "amdgpu-no-hostcall-ptr" "amdgpu-no-implicitarg-ptr" "amdgpu-no-lds-kernel-id" "amdgpu-no-multigrid-sync-arg" "amdgpu-no-queue-ptr" "amdgpu-no-workgroup-id-x" "amdgpu-no-workgroup-id-y" "amdgpu-no-workgroup-id-z" "amdgpu-no-workitem-id-x" "amdgpu-no-workitem-id-y" "amdgpu-no-workitem-id-z" "uniform-work-group-size"="true" }
 ; CHECK: attributes #[[ATTR2]] = { "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "amdgpu-no-heap-ptr" "amdgpu-no-hostcall-ptr" "amdgpu-no-implicitarg-ptr" "amdgpu-no-lds-kernel-id" "amdgpu-no-multigrid-sync-arg" "amdgpu-no-queue-ptr" "amdgpu-no-workgroup-id-x" "amdgpu-no-workgroup-id-y" "amdgpu-no-workgroup-id-z" "amdgpu-no-workitem-id-x" "amdgpu-no-workitem-id-y" "amdgpu-no-workitem-id-z" "uniform-work-group-size"="true" }
 ;.

diff  --git a/llvm/test/Feature/OperandBundles/function-attrs.ll b/llvm/test/Feature/OperandBundles/function-attrs.ll
index cfb67421ebb09..1db14cc7b5383 100644
--- a/llvm/test/Feature/OperandBundles/function-attrs.ll
+++ b/llvm/test/Feature/OperandBundles/function-attrs.ll
@@ -43,8 +43,8 @@ define void @test_3(i32* %x) {
   ret void
 }
 
-; CHECK: attributes #0 = { nofree readonly }
-; CHECK: attributes #1 = { nofree nosync readnone }
-; CHECK: attributes #2 = { writeonly }
+; CHECK: attributes #0 = { nofree memory(read) }
+; CHECK: attributes #1 = { nofree nosync memory(none) }
+; CHECK: attributes #2 = { memory(write) }
 ; CHECK: attributes #3 = { nofree }
 ; CHECK: attributes #4 = { nofree nosync }

diff  --git a/llvm/test/Feature/intrinsics.ll b/llvm/test/Feature/intrinsics.ll
index e7078c4a952ba..bd2c469395ae3 100644
--- a/llvm/test/Feature/intrinsics.ll
+++ b/llvm/test/Feature/intrinsics.ll
@@ -69,5 +69,5 @@ define void @trap() {
   ret void
 }
 
-; CHECK: attributes #0 = { nocallback nofree nosync nounwind readnone speculatable willreturn }
+; CHECK: attributes #0 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
 ; CHECK: attributes #1 = { cold noreturn nounwind }

diff  --git a/llvm/test/Instrumentation/DataFlowSanitizer/basic.ll b/llvm/test/Instrumentation/DataFlowSanitizer/basic.ll
index 0c065d6c29b0e..5cfc1f16af8fe 100644
--- a/llvm/test/Instrumentation/DataFlowSanitizer/basic.ll
+++ b/llvm/test/Instrumentation/DataFlowSanitizer/basic.ll
@@ -35,10 +35,10 @@ define void @store(i8* %p) {
 ; CHECK: declare void @__dfsan_mem_transfer_callback(i[[#SBITS]]*, i64)
 ; CHECK: declare void @__dfsan_cmp_callback(i[[#SBITS]])
 
-; CHECK: ; Function Attrs: nounwind readonly
+; CHECK: ; Function Attrs: nounwind memory(read)
 ; CHECK-NEXT: declare zeroext i[[#SBITS]] @__dfsan_union_load(i[[#SBITS]]*, i64)
 
-; CHECK: ; Function Attrs: nounwind readonly
+; CHECK: ; Function Attrs: nounwind memory(read)
 ; CHECK-NEXT: declare zeroext i64 @__dfsan_load_label_and_origin(i8*, i64)
 
 ; CHECK: declare void @__dfsan_unimplemented(i8*)

diff  --git a/llvm/test/Instrumentation/MemorySanitizer/attributes.ll b/llvm/test/Instrumentation/MemorySanitizer/attributes.ll
index 43452f570b28c..c2825ab3fc630 100644
--- a/llvm/test/Instrumentation/MemorySanitizer/attributes.ll
+++ b/llvm/test/Instrumentation/MemorySanitizer/attributes.ll
@@ -44,11 +44,8 @@ entry:
   ret void
 }
 
-; CHECK-NOT: readnone
-; CHECK-NOT: readonly
-; CHECK-NOT: writeonly
-; CHECK-NOT: argmemonly
+; CHECK-NOT: memory(
 ; CHECK-NOT: speculatable
 
-; CHECK: Function Attrs: nocallback nofree nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nocallback nofree nosync nounwind willreturn memory(none)
 ; CHECK-NEXT: declare void @llvm.donothing

diff  --git a/llvm/test/Other/attribute-comment.ll b/llvm/test/Other/attribute-comment.ll
index eab96e8aa9cd5..cf4076eec7c82 100644
--- a/llvm/test/Other/attribute-comment.ll
+++ b/llvm/test/Other/attribute-comment.ll
@@ -1,6 +1,6 @@
 ; RUN: opt -S < %s | FileCheck %s -strict-whitespace
 
-; CHECK: {{^}}; Function Attrs: nounwind readnone ssp uwtable{{$}}
+; CHECK: {{^}}; Function Attrs: nounwind ssp memory(none) uwtable{{$}}
 ; CHECK-NEXT: define void @test1() #0
 define void @test1() #0 {
   ret void

diff  --git a/llvm/test/Other/cgscc-devirt-iteration.ll b/llvm/test/Other/cgscc-devirt-iteration.ll
index 70f6c1f508deb..93056e962bd82 100644
--- a/llvm/test/Other/cgscc-devirt-iteration.ll
+++ b/llvm/test/Other/cgscc-devirt-iteration.ll
@@ -15,7 +15,7 @@
 ; RUN: opt -aa-pipeline=basic-aa -passes='default<O2>' -S < %s | FileCheck %s --check-prefix=CHECK --check-prefix=AFTER --check-prefix=AFTER2
 
 declare void @readnone() readnone
-; CHECK: Function Attrs: nofree nosync readnone
+; CHECK: Function Attrs: nofree nosync memory(none)
 ; CHECK-NEXT: declare void @readnone()
 
 declare void @unknown()
@@ -28,7 +28,7 @@ declare void @unknown()
 
 define void @test1() {
 ; BEFORE-NOT: Function Attrs
-; AFTER: Function Attrs: nofree nosync readnone
+; AFTER: Function Attrs: nofree nosync memory(none)
 ; CHECK-LABEL: define void @test1()
 entry:
   %fptr = alloca void ()*
@@ -51,13 +51,13 @@ entry:
 ; devirtualize again, and then deduce readnone.
 
 declare void @readnone_with_arg(void ()**) readnone
-; CHECK: Function Attrs: nofree nosync readnone
+; CHECK: Function Attrs: nofree nosync memory(none)
 ; CHECK-LABEL: declare void @readnone_with_arg(void ()**)
 
 define void @test2_a(void ()** %ignore) {
 ; BEFORE-NOT: Function Attrs
-; AFTER1: Function Attrs: nofree readonly
-; AFTER2: Function Attrs: nofree nosync readnone
+; AFTER1: Function Attrs: nofree memory(read)
+; AFTER2: Function Attrs: nofree nosync memory(none)
 ; BEFORE: define void @test2_a(void ()** %ignore)
 ; AFTER: define void @test2_a(void ()** readnone %ignore)
 entry:
@@ -77,8 +77,8 @@ entry:
 
 define void @test2_b() {
 ; BEFORE-NOT: Function Attrs
-; AFTER1: Function Attrs: nofree readonly
-; AFTER2: Function Attrs: nofree nosync readnone
+; AFTER1: Function Attrs: nofree memory(read)
+; AFTER2: Function Attrs: nofree nosync memory(none)
 ; CHECK-LABEL: define void @test2_b()
 entry:
   %f2ptr = alloca void ()*

diff  --git a/llvm/test/Other/cgscc-iterate-function-mutation.ll b/llvm/test/Other/cgscc-iterate-function-mutation.ll
index f4e4b889f50d6..50e0c748076eb 100644
--- a/llvm/test/Other/cgscc-iterate-function-mutation.ll
+++ b/llvm/test/Other/cgscc-iterate-function-mutation.ll
@@ -338,4 +338,4 @@ exit:
   ret void
 }
 
-; CHECK: attributes #0 = { nofree nosync readnone }
+; CHECK: attributes #0 = { nofree nosync memory(none) }

diff  --git a/llvm/test/Other/invariant.group.ll b/llvm/test/Other/invariant.group.ll
index c757aff25024e..94b1bc7cd958e 100644
--- a/llvm/test/Other/invariant.group.ll
+++ b/llvm/test/Other/invariant.group.ll
@@ -91,11 +91,11 @@ declare void @use(i8* readonly)
 declare void @useBool(i1)
 
 declare void @clobber(i8*)
-; CHECK: Function Attrs: inaccessiblememonly nocallback nofree nosync nounwind speculatable willreturn{{$}}
+; CHECK: Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(inaccessiblemem: readwrite){{$}}
 ; CHECK-NEXT: declare i8* @llvm.launder.invariant.group.p0i8(i8*)
 declare i8* @llvm.launder.invariant.group.p0i8(i8*)
 
-; CHECK: Function Attrs: nocallback nofree nosync nounwind readnone speculatable willreturn{{$}}
+; CHECK: Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none){{$}}
 ; CHECK-NEXT: declare i8* @llvm.strip.invariant.group.p0i8(i8*)
 declare i8* @llvm.strip.invariant.group.p0i8(i8*)
 

diff  --git a/llvm/test/Other/opt-override-mcpu-mattr.ll b/llvm/test/Other/opt-override-mcpu-mattr.ll
index bb95bd4ce54b1..19dee8bbad346 100644
--- a/llvm/test/Other/opt-override-mcpu-mattr.ll
+++ b/llvm/test/Other/opt-override-mcpu-mattr.ll
@@ -4,8 +4,8 @@
 ; target-cpu and target-features using command line options -mcpu and
 ; -mattr.
 
-; CHECK: attributes #0 = { nounwind readnone ssp uwtable "target-cpu"="broadwell" "target-features"="+ssse3,+cx16,+sse,+sse2,+sse3,+avx2" "use-soft-float"="false" }
-; CHECK: attributes #1 = { nounwind readnone ssp uwtable "target-cpu"="core2" "target-features"="+ssse3,+cx16,+sse,+sse2,+sse3,+avx2" "use-soft-float"="false" }
+; CHECK: attributes #0 = { nounwind ssp memory(none) uwtable "target-cpu"="broadwell" "target-features"="+ssse3,+cx16,+sse,+sse2,+sse3,+avx2" "use-soft-float"="false" }
+; CHECK: attributes #1 = { nounwind ssp memory(none) uwtable "target-cpu"="core2" "target-features"="+ssse3,+cx16,+sse,+sse2,+sse3,+avx2" "use-soft-float"="false" }
 
 define i32 @no_target_cpu() #0 {
 entry:

diff  --git a/llvm/test/Other/print-module-scope.ll b/llvm/test/Other/print-module-scope.ll
index 4a0525dbb380b..e2dc4e965b38d 100644
--- a/llvm/test/Other/print-module-scope.ll
+++ b/llvm/test/Other/print-module-scope.ll
@@ -30,7 +30,7 @@
 ; FOO: define void @foo
 ; FOO:   Function Attrs: nounwind
 ; FOO: define void @bar
-; FOO:   Function Attrs: nounwind readnone ssp
+; FOO:   Function Attrs: nounwind ssp memory(none)
 ; FOO: declare void @baz
 
 define void @foo() nounwind ssp {
@@ -49,6 +49,6 @@ attributes #0 = { nounwind "frame-pointer"="all" }
 attributes #1 = { nounwind readnone ssp "use-soft-float"="false" }
 ; FOO: attributes #{{[0-9]}} = { nounwind "frame-pointer"="all" }
 
-; FOO: attributes #{{[0-9]}} = { nounwind readnone ssp "use-soft-float"="false" }
+; FOO: attributes #{{[0-9]}} = { nounwind ssp memory(none) "use-soft-float"="false" }
 
 ; FOO-NOT: IR Dump After {{Simplify the CFG|SimplifyCFGPass}}

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/2008-02-01-ReturnAttrs.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/2008-02-01-ReturnAttrs.ll
index d7f1dd125db4e..e1941d2aa75af 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/2008-02-01-ReturnAttrs.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/2008-02-01-ReturnAttrs.ll
@@ -3,7 +3,7 @@
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,CGSCC
 
 define internal i32 @deref(i32* %x) nounwind {
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@deref
 ; CGSCC-SAME: (i32 [[TMP0:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -18,7 +18,7 @@ entry:
 }
 
 define i32 @f(i32 %x) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@f
 ; TUNIT-SAME: (i32 returned [[X:%.*]]) #[[ATTR0:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
@@ -26,7 +26,7 @@ define i32 @f(i32 %x) {
 ; TUNIT-NEXT:    store i32 [[X]], i32* [[X_ADDR]], align 4
 ; TUNIT-NEXT:    ret i32 [[X]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@f
 ; CGSCC-SAME: (i32 [[X:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -42,9 +42,9 @@ entry:
   ret i32 %tmp1
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { nounwind readonly willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { nounwind willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/2008-07-02-array-indexing.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/2008-07-02-array-indexing.ll
index 7d374bfe835a1..553ba1c633de8 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/2008-07-02-array-indexing.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/2008-07-02-array-indexing.ll
@@ -7,7 +7,7 @@
 ; because there is a load of %A in the entry block
 define internal i32 @callee(i1 %C, i32* %A) {
 ;
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: define {{[^@]+}}@callee
 ; CHECK-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -36,13 +36,13 @@ F:
 }
 
 define i32 @foo(i32* %A) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; TUNIT-LABEL: define {{[^@]+}}@foo
 ; TUNIT-SAME: (i32* nocapture nofree readonly [[A:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    [[X:%.*]] = call i32 @callee(i32* nocapture nofree readonly align 4 [[A]]) #[[ATTR1:[0-9]+]]
 ; TUNIT-NEXT:    ret i32 [[X]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@foo
 ; CGSCC-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:    [[X:%.*]] = call i32 @callee(i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A]]) #[[ATTR2:[0-9]+]]
@@ -53,10 +53,10 @@ define i32 @foo(i32* %A) {
 }
 
 ;.
-; TUNIT: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; TUNIT: attributes #[[ATTR1]] = { nofree nosync nounwind readonly willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; TUNIT: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR1]] = { argmemonly nofree nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR2]] = { readonly willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(argmem: read) }
+; CGSCC: attributes #[[ATTR2]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/2008-09-07-CGUpdate.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/2008-09-07-CGUpdate.ll
index d4f6c99543433..87f38af7f8a8d 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/2008-09-07-CGUpdate.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/2008-09-07-CGUpdate.ll
@@ -3,7 +3,7 @@
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,CGSCC
 
 define internal fastcc i32 @hash(i32* %ts, i32 %mod) nounwind {
-; CGSCC: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse noreturn nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@hash
 ; CGSCC-SAME: () #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -14,13 +14,13 @@ entry:
 }
 
 define void @encode(i32* %m, i32* %ts, i32* %new) nounwind {
-; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@encode
 ; TUNIT-SAME: (i32* nocapture nofree readnone [[M:%.*]], i32* nocapture nofree readnone [[TS:%.*]], i32* nocapture nofree readnone [[NEW:%.*]]) #[[ATTR0:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    unreachable
 ;
-; CGSCC: Function Attrs: nofree noreturn nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree noreturn nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@encode
 ; CGSCC-SAME: (i32* nocapture nofree readnone [[M:%.*]], i32* nocapture nofree readnone [[TS:%.*]], i32* nocapture nofree readnone [[NEW:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -31,8 +31,8 @@ entry:
   unreachable
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse noreturn nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse noreturn nosync nounwind willreturn memory(none) }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree norecurse noreturn nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree noreturn nosync nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse noreturn nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nofree noreturn nosync nounwind willreturn memory(none) }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/2008-09-08-CGUpdateSelfEdge.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/2008-09-08-CGUpdateSelfEdge.ll
index f83383ffb2943..be4d00168b773 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/2008-09-08-CGUpdateSelfEdge.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/2008-09-08-CGUpdateSelfEdge.ll
@@ -3,7 +3,7 @@
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,CGSCC
 
 define internal fastcc i32 @term_SharingList(i32* %Term, i32* %List) nounwind {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@term_SharingList
 ; CGSCC-SAME: () #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -25,7 +25,7 @@ bb5:		; preds = %entry
 }
 
 define i32 @term_Sharing(i32* %Term) nounwind {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@term_Sharing
 ; CHECK-SAME: (i32* nocapture nofree readnone [[TERM:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -46,5 +46,5 @@ bb14:		; preds = %entry
   ret i32 0
 }
 ;.
-; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/X86/attributes.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/X86/attributes.ll
index 9c4839bd22293..59c3fcecb7bcf 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/X86/attributes.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/X86/attributes.ll
@@ -7,7 +7,7 @@
 target triple = "x86_64-unknown-linux-gnu"
 
 define internal fastcc void @no_promote_avx2(<4 x i64>* %arg, <4 x i64>* readonly %arg1) #0 {
-; CHECK: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; CHECK: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@no_promote_avx2
 ; CHECK-SAME: (<4 x i64>* noalias nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) [[ARG:%.*]], <4 x i64>* noalias nocapture nofree noundef nonnull readonly align 32 dereferenceable(32) [[ARG1:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  bb:
@@ -22,7 +22,7 @@ bb:
 }
 
 define void @no_promote(<4 x i64>* %arg) #1 {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn uwtable
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@no_promote
 ; TUNIT-SAME: (<4 x i64>* nocapture nofree writeonly [[ARG:%.*]]) #[[ATTR1:[0-9]+]] {
 ; TUNIT-NEXT:  bb:
@@ -35,7 +35,7 @@ define void @no_promote(<4 x i64>* %arg) #1 {
 ; TUNIT-NEXT:    store <4 x i64> [[TMP4]], <4 x i64>* [[ARG]], align 2
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind willreturn uwtable
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@no_promote
 ; CGSCC-SAME: (<4 x i64>* nocapture nofree noundef nonnull writeonly align 2 dereferenceable(32) [[ARG:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  bb:
@@ -60,7 +60,7 @@ bb:
 }
 
 define internal fastcc void @promote_avx2(<4 x i64>* %arg, <4 x i64>* readonly %arg1) #0 {
-; CHECK: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; CHECK: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@promote_avx2
 ; CHECK-SAME: (<4 x i64>* noalias nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) [[ARG:%.*]], <4 x i64> [[TMP0:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  bb:
@@ -77,7 +77,7 @@ bb:
 }
 
 define void @promote(<4 x i64>* %arg) #0 {
-; TUNIT: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; TUNIT: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@promote
 ; TUNIT-SAME: (<4 x i64>* nocapture nofree writeonly [[ARG:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:  bb:
@@ -91,7 +91,7 @@ define void @promote(<4 x i64>* %arg) #0 {
 ; TUNIT-NEXT:    store <4 x i64> [[TMP4]], <4 x i64>* [[ARG]], align 2
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; CGSCC: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@promote
 ; CGSCC-SAME: (<4 x i64>* nocapture nofree noundef nonnull writeonly align 2 dereferenceable(32) [[ARG:%.*]]) #[[ATTR0]] {
 ; CGSCC-NEXT:  bb:
@@ -123,15 +123,15 @@ attributes #0 = { inlinehint norecurse nounwind uwtable "target-features"="+avx2
 attributes #1 = { nounwind uwtable }
 attributes #2 = { argmemonly nounwind }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable "target-features"="+avx2" }
-; TUNIT: attributes #[[ATTR1]] = { argmemonly nofree norecurse nosync nounwind willreturn uwtable }
-; TUNIT: attributes #[[ATTR2:[0-9]+]] = { argmemonly nocallback nofree nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR3]] = { willreturn writeonly }
+; TUNIT: attributes #[[ATTR0]] = { inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable "target-features"="+avx2" }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable }
+; TUNIT: attributes #[[ATTR2:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) }
+; TUNIT: attributes #[[ATTR3]] = { willreturn }
 ; TUNIT: attributes #[[ATTR4]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable "target-features"="+avx2" }
-; CGSCC: attributes #[[ATTR1]] = { argmemonly nofree nosync nounwind willreturn uwtable }
-; CGSCC: attributes #[[ATTR2:[0-9]+]] = { argmemonly nocallback nofree nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR3]] = { willreturn writeonly }
+; CGSCC: attributes #[[ATTR0]] = { inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable "target-features"="+avx2" }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(argmem: readwrite) uwtable }
+; CGSCC: attributes #[[ATTR2:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) }
+; CGSCC: attributes #[[ATTR3]] = { willreturn }
 ; CGSCC: attributes #[[ATTR4]] = { nounwind willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/X86/min-legal-vector-width.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/X86/min-legal-vector-width.ll
index 5cf7340a2f78b..660deb3cd8015 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/X86/min-legal-vector-width.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/X86/min-legal-vector-width.ll
@@ -9,7 +9,7 @@ target triple = "x86_64-unknown-linux-gnu"
 ; This should promote
 define internal fastcc void @callee_avx512_legal512_prefer512_call_avx512_legal512_prefer512(<8 x i64>* %arg, <8 x i64>* readonly %arg1) #0 {
 ;
-; CHECK: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; CHECK: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@callee_avx512_legal512_prefer512_call_avx512_legal512_prefer512
 ; CHECK-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64> [[TMP0:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  bb:
@@ -27,7 +27,7 @@ bb:
 
 define void @avx512_legal512_prefer512_call_avx512_legal512_prefer512(<8 x i64>* %arg) #0 {
 ;
-; TUNIT: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; TUNIT: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@avx512_legal512_prefer512_call_avx512_legal512_prefer512
 ; TUNIT-SAME: (<8 x i64>* nocapture nofree writeonly [[ARG:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:  bb:
@@ -41,7 +41,7 @@ define void @avx512_legal512_prefer512_call_avx512_legal512_prefer512(<8 x i64>*
 ; TUNIT-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; CGSCC: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@avx512_legal512_prefer512_call_avx512_legal512_prefer512
 ; CGSCC-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) #[[ATTR0]] {
 ; CGSCC-NEXT:  bb:
@@ -69,7 +69,7 @@ bb:
 ; This should promote
 define internal fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal512_prefer256(<8 x i64>* %arg, <8 x i64>* readonly %arg1) #1 {
 ;
-; CHECK: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; CHECK: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@callee_avx512_legal512_prefer256_call_avx512_legal512_prefer256
 ; CHECK-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64> [[TMP0:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:  bb:
@@ -87,7 +87,7 @@ bb:
 
 define void @avx512_legal512_prefer256_call_avx512_legal512_prefer256(<8 x i64>* %arg) #1 {
 ;
-; TUNIT: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; TUNIT: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@avx512_legal512_prefer256_call_avx512_legal512_prefer256
 ; TUNIT-SAME: (<8 x i64>* nocapture nofree writeonly [[ARG:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  bb:
@@ -101,7 +101,7 @@ define void @avx512_legal512_prefer256_call_avx512_legal512_prefer256(<8 x i64>*
 ; TUNIT-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; CGSCC: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@avx512_legal512_prefer256_call_avx512_legal512_prefer256
 ; CGSCC-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:  bb:
@@ -129,7 +129,7 @@ bb:
 ; This should promote
 define internal fastcc void @callee_avx512_legal512_prefer512_call_avx512_legal512_prefer256(<8 x i64>* %arg, <8 x i64>* readonly %arg1) #1 {
 ;
-; CHECK: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; CHECK: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@callee_avx512_legal512_prefer512_call_avx512_legal512_prefer256
 ; CHECK-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64> [[TMP0:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:  bb:
@@ -147,7 +147,7 @@ bb:
 
 define void @avx512_legal512_prefer512_call_avx512_legal512_prefer256(<8 x i64>* %arg) #0 {
 ;
-; TUNIT: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; TUNIT: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@avx512_legal512_prefer512_call_avx512_legal512_prefer256
 ; TUNIT-SAME: (<8 x i64>* nocapture nofree writeonly [[ARG:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:  bb:
@@ -161,7 +161,7 @@ define void @avx512_legal512_prefer512_call_avx512_legal512_prefer256(<8 x i64>*
 ; TUNIT-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; CGSCC: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@avx512_legal512_prefer512_call_avx512_legal512_prefer256
 ; CGSCC-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) #[[ATTR0]] {
 ; CGSCC-NEXT:  bb:
@@ -189,7 +189,7 @@ bb:
 ; This should promote
 define internal fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal512_prefer512(<8 x i64>* %arg, <8 x i64>* readonly %arg1) #0 {
 ;
-; CHECK: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; CHECK: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@callee_avx512_legal512_prefer256_call_avx512_legal512_prefer512
 ; CHECK-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64> [[TMP0:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  bb:
@@ -207,7 +207,7 @@ bb:
 
 define void @avx512_legal512_prefer256_call_avx512_legal512_prefer512(<8 x i64>* %arg) #1 {
 ;
-; TUNIT: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; TUNIT: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@avx512_legal512_prefer256_call_avx512_legal512_prefer512
 ; TUNIT-SAME: (<8 x i64>* nocapture nofree writeonly [[ARG:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  bb:
@@ -221,7 +221,7 @@ define void @avx512_legal512_prefer256_call_avx512_legal512_prefer512(<8 x i64>*
 ; TUNIT-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; CGSCC: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@avx512_legal512_prefer256_call_avx512_legal512_prefer512
 ; CGSCC-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:  bb:
@@ -249,7 +249,7 @@ bb:
 ; This should not promote
 define internal fastcc void @callee_avx512_legal256_prefer256_call_avx512_legal512_prefer256(<8 x i64>* %arg, <8 x i64>* readonly %arg1) #1 {
 ;
-; CHECK: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; CHECK: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@callee_avx512_legal256_prefer256_call_avx512_legal512_prefer256
 ; CHECK-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64>* noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[ARG1:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:  bb:
@@ -265,7 +265,7 @@ bb:
 
 define void @avx512_legal256_prefer256_call_avx512_legal512_prefer256(<8 x i64>* %arg) #2 {
 ;
-; TUNIT: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; TUNIT: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@avx512_legal256_prefer256_call_avx512_legal512_prefer256
 ; TUNIT-SAME: (<8 x i64>* nocapture nofree writeonly [[ARG:%.*]]) #[[ATTR2:[0-9]+]] {
 ; TUNIT-NEXT:  bb:
@@ -278,7 +278,7 @@ define void @avx512_legal256_prefer256_call_avx512_legal512_prefer256(<8 x i64>*
 ; TUNIT-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; CGSCC: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@avx512_legal256_prefer256_call_avx512_legal512_prefer256
 ; CGSCC-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) #[[ATTR2:[0-9]+]] {
 ; CGSCC-NEXT:  bb:
@@ -305,7 +305,7 @@ bb:
 ; This should not promote
 define internal fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal256_prefer256(<8 x i64>* %arg, <8 x i64>* readonly %arg1) #2 {
 ;
-; CHECK: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; CHECK: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@callee_avx512_legal512_prefer256_call_avx512_legal256_prefer256
 ; CHECK-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64>* noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[ARG1:%.*]]) #[[ATTR2:[0-9]+]] {
 ; CHECK-NEXT:  bb:
@@ -321,7 +321,7 @@ bb:
 
 define void @avx512_legal512_prefer256_call_avx512_legal256_prefer256(<8 x i64>* %arg) #1 {
 ;
-; TUNIT: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; TUNIT: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@avx512_legal512_prefer256_call_avx512_legal256_prefer256
 ; TUNIT-SAME: (<8 x i64>* nocapture nofree writeonly [[ARG:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  bb:
@@ -334,7 +334,7 @@ define void @avx512_legal512_prefer256_call_avx512_legal256_prefer256(<8 x i64>*
 ; TUNIT-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; CGSCC: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@avx512_legal512_prefer256_call_avx512_legal256_prefer256
 ; CGSCC-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:  bb:
@@ -361,7 +361,7 @@ bb:
 ; This should promote
 define internal fastcc void @callee_avx2_legal256_prefer256_call_avx2_legal512_prefer256(<8 x i64>* %arg, <8 x i64>* readonly %arg1) #3 {
 ;
-; CHECK: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; CHECK: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@callee_avx2_legal256_prefer256_call_avx2_legal512_prefer256
 ; CHECK-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64> [[TMP0:%.*]]) #[[ATTR3:[0-9]+]] {
 ; CHECK-NEXT:  bb:
@@ -379,7 +379,7 @@ bb:
 
 define void @avx2_legal256_prefer256_call_avx2_legal512_prefer256(<8 x i64>* %arg) #4 {
 ;
-; TUNIT: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; TUNIT: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@avx2_legal256_prefer256_call_avx2_legal512_prefer256
 ; TUNIT-SAME: (<8 x i64>* nocapture nofree writeonly [[ARG:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:  bb:
@@ -393,7 +393,7 @@ define void @avx2_legal256_prefer256_call_avx2_legal512_prefer256(<8 x i64>* %ar
 ; TUNIT-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; CGSCC: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@avx2_legal256_prefer256_call_avx2_legal512_prefer256
 ; CGSCC-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) #[[ATTR3]] {
 ; CGSCC-NEXT:  bb:
@@ -421,7 +421,7 @@ bb:
 ; This should promote
 define internal fastcc void @callee_avx2_legal512_prefer256_call_avx2_legal256_prefer256(<8 x i64>* %arg, <8 x i64>* readonly %arg1) #4 {
 ;
-; CHECK: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; CHECK: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@callee_avx2_legal512_prefer256_call_avx2_legal256_prefer256
 ; CHECK-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64> [[TMP0:%.*]]) #[[ATTR3]] {
 ; CHECK-NEXT:  bb:
@@ -439,7 +439,7 @@ bb:
 
 define void @avx2_legal512_prefer256_call_avx2_legal256_prefer256(<8 x i64>* %arg) #3 {
 ;
-; TUNIT: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; TUNIT: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@avx2_legal512_prefer256_call_avx2_legal256_prefer256
 ; TUNIT-SAME: (<8 x i64>* nocapture nofree writeonly [[ARG:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:  bb:
@@ -453,7 +453,7 @@ define void @avx2_legal512_prefer256_call_avx2_legal256_prefer256(<8 x i64>* %ar
 ; TUNIT-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable
+; CGSCC: Function Attrs: inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@avx2_legal512_prefer256_call_avx2_legal256_prefer256
 ; CGSCC-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) #[[ATTR3]] {
 ; CGSCC-NEXT:  bb:
@@ -488,19 +488,19 @@ attributes #3 = { inlinehint norecurse nounwind uwtable "target-features"="+avx2
 attributes #4 = { inlinehint norecurse nounwind uwtable "target-features"="+avx2" "min-legal-vector-width"="256" "prefer-vector-width"="256" }
 attributes #5 = { argmemonly nounwind }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable "min-legal-vector-width"="512" "prefer-vector-width"="512" "target-features"="+avx512vl" }
-; TUNIT: attributes #[[ATTR1]] = { argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable "min-legal-vector-width"="512" "prefer-vector-width"="256" "target-features"="+avx512vl" }
-; TUNIT: attributes #[[ATTR2]] = { argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable "min-legal-vector-width"="256" "prefer-vector-width"="256" "target-features"="+avx512vl" }
-; TUNIT: attributes #[[ATTR3]] = { argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable "min-legal-vector-width"="512" "prefer-vector-width"="256" "target-features"="+avx2" }
-; TUNIT: attributes #[[ATTR4:[0-9]+]] = { argmemonly nocallback nofree nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR5]] = { willreturn writeonly }
+; TUNIT: attributes #[[ATTR0]] = { inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable "min-legal-vector-width"="512" "prefer-vector-width"="512" "target-features"="+avx512vl" }
+; TUNIT: attributes #[[ATTR1]] = { inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable "min-legal-vector-width"="512" "prefer-vector-width"="256" "target-features"="+avx512vl" }
+; TUNIT: attributes #[[ATTR2]] = { inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable "min-legal-vector-width"="256" "prefer-vector-width"="256" "target-features"="+avx512vl" }
+; TUNIT: attributes #[[ATTR3]] = { inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable "min-legal-vector-width"="512" "prefer-vector-width"="256" "target-features"="+avx2" }
+; TUNIT: attributes #[[ATTR4:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) }
+; TUNIT: attributes #[[ATTR5]] = { willreturn }
 ; TUNIT: attributes #[[ATTR6]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable "min-legal-vector-width"="512" "prefer-vector-width"="512" "target-features"="+avx512vl" }
-; CGSCC: attributes #[[ATTR1]] = { argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable "min-legal-vector-width"="512" "prefer-vector-width"="256" "target-features"="+avx512vl" }
-; CGSCC: attributes #[[ATTR2]] = { argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable "min-legal-vector-width"="256" "prefer-vector-width"="256" "target-features"="+avx512vl" }
-; CGSCC: attributes #[[ATTR3]] = { argmemonly inlinehint nofree norecurse nosync nounwind willreturn uwtable "min-legal-vector-width"="512" "prefer-vector-width"="256" "target-features"="+avx2" }
-; CGSCC: attributes #[[ATTR4:[0-9]+]] = { argmemonly nocallback nofree nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR5]] = { willreturn writeonly }
+; CGSCC: attributes #[[ATTR0]] = { inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable "min-legal-vector-width"="512" "prefer-vector-width"="512" "target-features"="+avx512vl" }
+; CGSCC: attributes #[[ATTR1]] = { inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable "min-legal-vector-width"="512" "prefer-vector-width"="256" "target-features"="+avx512vl" }
+; CGSCC: attributes #[[ATTR2]] = { inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable "min-legal-vector-width"="256" "prefer-vector-width"="256" "target-features"="+avx512vl" }
+; CGSCC: attributes #[[ATTR3]] = { inlinehint nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable "min-legal-vector-width"="512" "prefer-vector-width"="256" "target-features"="+avx2" }
+; CGSCC: attributes #[[ATTR4:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) }
+; CGSCC: attributes #[[ATTR5]] = { willreturn }
 ; CGSCC: attributes #[[ATTR6]] = { nounwind willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/aggregate-promote.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/aggregate-promote.ll
index d08c230e79607..84aac94f429af 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/aggregate-promote.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/aggregate-promote.ll
@@ -9,7 +9,7 @@
 ; CHECK: @[[G:[a-zA-Z0-9_$"\\.-]+]] = constant [[T:%.*]] { i32 0, i32 0, i32 17, i32 25 }
 ;.
 define internal i32 @test(%T* %p) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@test
 ; CGSCC-SAME: () #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -26,13 +26,13 @@ entry:
 
 define i32 @caller() {
 ;
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@caller
 ; TUNIT-SAME: () #[[ATTR0:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    ret i32 42
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@caller
 ; CGSCC-SAME: () #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -44,9 +44,9 @@ entry:
   ret i32 %v
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/alignment.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/alignment.ll
index 0d3e26e4b3aeb..31fc10745c1c6 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/alignment.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/alignment.ll
@@ -40,7 +40,7 @@ declare void @z(i32)
 ; Test2
 ; Different alignemnt privatizable arguments
 define internal i32 @test(i32* %X, i64* %Y) {
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@test
 ; CGSCC-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[X:%.*]], i64 [[TMP0:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:    [[Y_PRIV:%.*]] = alloca i64, align 8
@@ -69,7 +69,7 @@ Return2:
 }
 
 define internal i32 @caller(i32* %A) {
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@caller
 ; CGSCC-SAME: (i32 [[TMP0:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:    [[A_PRIV:%.*]] = alloca i32, align 4
@@ -84,13 +84,13 @@ define internal i32 @caller(i32* %A) {
 }
 
 define i32 @callercaller() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@callercaller
 ; TUNIT-SAME: () #[[ATTR0:[0-9]+]] {
 ; TUNIT-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; TUNIT-NEXT:    ret i32 3
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@callercaller
 ; CGSCC-SAME: () #[[ATTR2:[0-9]+]] {
 ; CGSCC-NEXT:    [[X:%.*]] = call i32 @caller(i32 noundef 2) #[[ATTR4:[0-9]+]]
@@ -102,11 +102,11 @@ define i32 @callercaller() {
   ret i32 %X
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR1]] = { argmemonly nofree nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR3]] = { readonly willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR3]] = { willreturn memory(read) }
 ; CGSCC: attributes #[[ATTR4]] = { nounwind willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/attrs.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/attrs.ll
index 26d738a59469f..13c4ecba9cc66 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/attrs.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/attrs.ll
@@ -7,7 +7,7 @@
 ; Don't drop 'byval' on %X here.
 define internal i32 @f(%struct.ss* byval(%struct.ss) %b, i32* byval(i32) %X, i32 %i) nounwind {
 ;
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@f
 ; CHECK-SAME: (i32 [[TMP0:%.*]], i64 [[TMP1:%.*]], i32 [[TMP2:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -43,7 +43,7 @@ entry:
 ; Also make sure we don't drop the call zeroext attribute.
 define i32 @test(i32* %X) {
 ;
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@test
 ; TUNIT-SAME: (i32* nocapture nofree readonly [[X:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:  entry:
@@ -59,7 +59,7 @@ define i32 @test(i32* %X) {
 ; TUNIT-NEXT:    [[C:%.*]] = call i32 @f(i32 [[TMP0]], i64 [[TMP1]], i32 [[TMP2]]) #[[ATTR1:[0-9]+]]
 ; TUNIT-NEXT:    ret i32 [[C]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@test
 ; CGSCC-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[X:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -82,10 +82,10 @@ entry:
   ret i32 %c
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) }
 ; TUNIT: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR1]] = { argmemonly nofree nosync nounwind willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(argmem: readwrite) }
 ; CGSCC: attributes #[[ATTR2]] = { nounwind willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/basictest.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/basictest.ll
index 457e53f1ab45d..e8aea37d37f95 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/basictest.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/basictest.ll
@@ -4,7 +4,7 @@
 target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
 
 define internal i32 @test(i32* %X, i32* %Y) {
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@test
 ; CGSCC-SAME: (i32 [[TMP0:%.*]], i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[Y:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:    [[X_PRIV:%.*]] = alloca i32, align 4
@@ -21,7 +21,7 @@ define internal i32 @test(i32* %X, i32* %Y) {
 }
 
 define internal i32 @caller(i32* %B) {
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@caller
 ; CGSCC-SAME: (i32 [[TMP0:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:    [[B_PRIV:%.*]] = alloca i32, align 4
@@ -36,13 +36,13 @@ define internal i32 @caller(i32* %B) {
 }
 
 define i32 @callercaller() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@callercaller
 ; TUNIT-SAME: () #[[ATTR0:[0-9]+]] {
 ; TUNIT-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; TUNIT-NEXT:    ret i32 3
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@callercaller
 ; CGSCC-SAME: () #[[ATTR2:[0-9]+]] {
 ; CGSCC-NEXT:    [[X:%.*]] = call i32 @caller(i32 noundef 2) #[[ATTR4:[0-9]+]]
@@ -55,11 +55,11 @@ define i32 @callercaller() {
 }
 
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR1]] = { argmemonly nofree nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR3]] = { readonly willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR3]] = { willreturn memory(read) }
 ; CGSCC: attributes #[[ATTR4]] = { nounwind willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/byval-2.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/byval-2.ll
index 3e15ba83fef80..e6b145c5f3902 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/byval-2.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/byval-2.ll
@@ -5,7 +5,7 @@
 %struct.ss = type { i32, i64 }
 
 define internal void @f(%struct.ss* byval(%struct.ss)  %b, i32* byval(i32) %X) nounwind  {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@f
 ; CHECK-SAME: (i32 [[TMP0:%.*]], i64 [[TMP1:%.*]], i32 [[TMP2:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -35,7 +35,7 @@ entry:
 
 define i32 @test(i32* %X) {
 ;
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@test
 ; TUNIT-SAME: (i32* nocapture nofree readonly [[X:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:  entry:
@@ -51,7 +51,7 @@ define i32 @test(i32* %X) {
 ; TUNIT-NEXT:    call void @f(i32 [[TMP0]], i64 [[TMP1]], i32 [[TMP2]]) #[[ATTR1:[0-9]+]]
 ; TUNIT-NEXT:    ret i32 0
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@test
 ; CGSCC-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[X:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -72,10 +72,10 @@ entry:
   ret i32 0
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) }
 ; TUNIT: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR1]] = { argmemonly nofree nosync nounwind willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(argmem: readwrite) }
 ; CGSCC: attributes #[[ATTR2]] = { nounwind willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/byval.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/byval.ll
index c14aacf6011a2..e27904ebd3113 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/byval.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/byval.ll
@@ -7,7 +7,7 @@ target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:1
 %struct.ss = type { i32, i64 }
 
 define internal i32 @f(%struct.ss* byval(%struct.ss)  %b) nounwind  {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@f
 ; CHECK-SAME: (i32 [[TMP0:%.*]], i64 [[TMP1:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -32,7 +32,7 @@ entry:
 
 
 define internal i32 @g(%struct.ss* byval(%struct.ss) align 32 %b) nounwind {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@g
 ; CHECK-SAME: (i32 [[TMP0:%.*]], i64 [[TMP1:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -57,7 +57,7 @@ entry:
 
 
 define i32 @main() nounwind  {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@main
 ; TUNIT-SAME: () #[[ATTR1:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
@@ -65,20 +65,20 @@ define i32 @main() nounwind  {
 ; TUNIT-NEXT:    [[TMP1:%.*]] = getelementptr [[STRUCT_SS]], %struct.ss* [[S]], i32 0, i32 0
 ; TUNIT-NEXT:    store i32 1, i32* [[TMP1]], align 8
 ; TUNIT-NEXT:    [[TMP4:%.*]] = getelementptr [[STRUCT_SS]], %struct.ss* [[S]], i32 0, i32 1
-; TUNIT-NEXT:    [[S_CAST1:%.*]] = bitcast %struct.ss* [[S]] to i32*
-; TUNIT-NEXT:    [[TMP0:%.*]] = load i32, i32* [[S_CAST1]], align 8
-; TUNIT-NEXT:    [[S_0_12:%.*]] = getelementptr [[STRUCT_SS]], %struct.ss* [[S]], i64 0, i32 1
-; TUNIT-NEXT:    [[TMP1:%.*]] = load i64, i64* [[S_0_12]], align 8
-; TUNIT-NEXT:    [[C0:%.*]] = call i32 @f(i32 [[TMP0]], i64 [[TMP1]]) #[[ATTR2:[0-9]+]]
 ; TUNIT-NEXT:    [[S_CAST:%.*]] = bitcast %struct.ss* [[S]] to i32*
-; TUNIT-NEXT:    [[TMP2:%.*]] = load i32, i32* [[S_CAST]], align 32
+; TUNIT-NEXT:    [[TMP0:%.*]] = load i32, i32* [[S_CAST]], align 8
 ; TUNIT-NEXT:    [[S_0_1:%.*]] = getelementptr [[STRUCT_SS]], %struct.ss* [[S]], i64 0, i32 1
-; TUNIT-NEXT:    [[TMP3:%.*]] = load i64, i64* [[S_0_1]], align 32
+; TUNIT-NEXT:    [[TMP1:%.*]] = load i64, i64* [[S_0_1]], align 8
+; TUNIT-NEXT:    [[C0:%.*]] = call i32 @f(i32 [[TMP0]], i64 [[TMP1]]) #[[ATTR2:[0-9]+]]
+; TUNIT-NEXT:    [[S_CAST1:%.*]] = bitcast %struct.ss* [[S]] to i32*
+; TUNIT-NEXT:    [[TMP2:%.*]] = load i32, i32* [[S_CAST1]], align 32
+; TUNIT-NEXT:    [[S_0_12:%.*]] = getelementptr [[STRUCT_SS]], %struct.ss* [[S]], i64 0, i32 1
+; TUNIT-NEXT:    [[TMP3:%.*]] = load i64, i64* [[S_0_12]], align 32
 ; TUNIT-NEXT:    [[C1:%.*]] = call i32 @g(i32 [[TMP2]], i64 [[TMP3]]) #[[ATTR2]]
 ; TUNIT-NEXT:    [[A:%.*]] = add i32 [[C0]], [[C1]]
 ; TUNIT-NEXT:    ret i32 [[A]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@main
 ; CGSCC-SAME: () #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -104,11 +104,11 @@ entry:
 
 
 ;.
-; TUNIT: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind willreturn }
-; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ; TUNIT: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(none) }
 ; CGSCC: attributes #[[ATTR2]] = { nounwind willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/chained.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/chained.ll
index 0ed328d0a6cf5..2a6d3dc3378a1 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/chained.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/chained.ll
@@ -11,7 +11,7 @@
 ;.
 define internal i32 @test(i32** %x) {
 ;
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test
 ; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -25,14 +25,14 @@ entry:
 }
 
 define i32 @caller() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@caller
 ; TUNIT-SAME: () #[[ATTR0]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    [[X:%.*]] = call i32 @test() #[[ATTR1:[0-9]+]]
 ; TUNIT-NEXT:    ret i32 [[X]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@caller
 ; CGSCC-SAME: () #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -45,10 +45,10 @@ entry:
 }
 
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/control-flow.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/control-flow.ll
index bf8441ebfec2c..44ce05fd82363 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/control-flow.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/control-flow.ll
@@ -4,7 +4,7 @@
 
 ; Don't promote around control flow.
 define internal i32 @callee(i1 %C, i32* %P) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: define {{[^@]+}}@callee
 ; CHECK-SAME: (i1 [[C:%.*]], i32* nocapture nofree readonly [[P:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -27,14 +27,14 @@ F:
 }
 
 define i32 @foo(i1 %C, i32* %P) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; TUNIT-LABEL: define {{[^@]+}}@foo
 ; TUNIT-SAME: (i1 [[C:%.*]], i32* nocapture nofree readonly [[P:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    [[X:%.*]] = call i32 @callee(i1 [[C]], i32* nocapture nofree readonly [[P]]) #[[ATTR1:[0-9]+]]
 ; TUNIT-NEXT:    ret i32 [[X]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@foo
 ; CGSCC-SAME: (i1 [[C:%.*]], i32* nocapture nofree readonly [[P:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -47,10 +47,10 @@ entry:
 }
 
 ;.
-; TUNIT: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; TUNIT: attributes #[[ATTR1]] = { nofree nosync nounwind readonly willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; TUNIT: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR1]] = { argmemonly nofree nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR2]] = { readonly willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(argmem: read) }
+; CGSCC: attributes #[[ATTR2]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/control-flow2.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/control-flow2.ll
index ab2cb25792f39..0386d1fe9808f 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/control-flow2.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/control-flow2.ll
@@ -5,7 +5,7 @@
 target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
 
 define internal i32 @callee(i1 %C, i32* %P) {
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@callee
 ; CGSCC-SAME: (i32 [[TMP0:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:    [[P_PRIV:%.*]] = alloca i32, align 4
@@ -28,13 +28,13 @@ F:              ; preds = %0
 }
 
 define i32 @foo() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@foo
 ; TUNIT-SAME: () #[[ATTR0:[0-9]+]] {
 ; TUNIT-NEXT:    [[A:%.*]] = alloca i32, align 4
 ; TUNIT-NEXT:    ret i32 17
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@foo
 ; CGSCC-SAME: () #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:    [[X:%.*]] = call i32 @callee(i32 noundef 17) #[[ATTR2:[0-9]+]]
@@ -47,9 +47,9 @@ define i32 @foo() {
 }
 
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { readonly willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/crash.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/crash.ll
index c26c758e66060..7afc19674ae34 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/crash.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/crash.ll
@@ -7,7 +7,7 @@
 ; Inlining should nuke the invoke (and any inlined calls) here even with
 ; argument promotion running along with it.
 define void @zot() personality i32 (...)* @wibble {
-; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@zot
 ; TUNIT-SAME: () #[[ATTR0:[0-9]+]] personality i32 (...)* @wibble {
 ; TUNIT-NEXT:  bb:
@@ -18,7 +18,7 @@ define void @zot() personality i32 (...)* @wibble {
 ; TUNIT:       bb2:
 ; TUNIT-NEXT:    unreachable
 ;
-; CGSCC: Function Attrs: nofree noreturn nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree noreturn nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@zot
 ; CGSCC-SAME: () #[[ATTR0:[0-9]+]] personality i32 (...)* @wibble {
 ; CGSCC-NEXT:  bb:
@@ -43,13 +43,13 @@ bb2:
 }
 
 define internal void @hoge() {
-; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@hoge
 ; TUNIT-SAME: () #[[ATTR0]] {
 ; TUNIT-NEXT:  bb:
 ; TUNIT-NEXT:    unreachable
 ;
-; CGSCC: Function Attrs: nofree noreturn nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree noreturn nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@hoge
 ; CGSCC-SAME: () #[[ATTR0]] {
 ; CGSCC-NEXT:  bb:
@@ -62,7 +62,7 @@ bb:
 }
 
 define internal fastcc i8* @spam(i1 (i8*)* %arg) {
-; CGSCC: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse noreturn nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@spam
 ; CGSCC-SAME: () #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  bb:
@@ -85,7 +85,7 @@ bb:
 }
 
 define internal i1 @barney(i8* %arg) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@barney
 ; CGSCC-SAME: () #[[ATTR2:[0-9]+]] {
 ; CGSCC-NEXT:  bb:
@@ -96,13 +96,13 @@ bb:
 }
 
 define i32 @test_inf_promote_caller(i32 %arg) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@test_inf_promote_caller
 ; TUNIT-SAME: (i32 [[ARG:%.*]]) #[[ATTR1:[0-9]+]] {
 ; TUNIT-NEXT:  bb:
 ; TUNIT-NEXT:    ret i32 0
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@test_inf_promote_caller
 ; CGSCC-SAME: (i32 [[ARG:%.*]]) #[[ATTR3:[0-9]+]] {
 ; CGSCC-NEXT:  bb:
@@ -119,7 +119,7 @@ bb:
 }
 
 define internal i32 @test_inf_promote_callee(%S* %arg, %S* %arg1) {
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@test_inf_promote_callee
 ; CGSCC-SAME: () #[[ATTR3]] {
 ; CGSCC-NEXT:  bb:
@@ -137,13 +137,13 @@ bb:
 
 declare i32 @wibble(...)
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse noreturn nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR2]] = { noreturn nounwind readnone }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse noreturn nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR2]] = { noreturn nounwind }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree noreturn nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree norecurse noreturn nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR3]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR4]] = { noreturn nounwind readnone }
+; CGSCC: attributes #[[ATTR0]] = { nofree noreturn nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nofree norecurse noreturn nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR3]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR4]] = { noreturn nounwind }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/fp80.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/fp80.ll
index ad98b8a4eb562..bb62017e2aa34 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/fp80.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/fp80.ll
@@ -19,13 +19,13 @@ target triple = "x86_64-unknown-linux-gnu"
 ;.
 define void @run() {
 ;
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@run
 ; TUNIT-SAME: () #[[ATTR0:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    unreachable
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@run
 ; CGSCC-SAME: () #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -40,7 +40,7 @@ entry:
 }
 
 define internal i8 @UseLongDoubleUnsafely(%union.u* byval(%union.u) align 16 %arg) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@UseLongDoubleUnsafely
 ; CGSCC-SAME: () #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -54,7 +54,7 @@ entry:
 }
 
 define internal x86_fp80 @UseLongDoubleSafely(%union.u* byval(%union.u) align 16 %arg) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@UseLongDoubleSafely
 ; CGSCC-SAME: () #[[ATTR1]] {
 ; CGSCC-NEXT:    ret x86_fp80 undef
@@ -65,7 +65,7 @@ define internal x86_fp80 @UseLongDoubleSafely(%union.u* byval(%union.u) align 16
 }
 
 define internal i64 @AccessPaddingOfStruct(%struct.Foo* byval(%struct.Foo) %a) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@AccessPaddingOfStruct
 ; CGSCC-SAME: () #[[ATTR1]] {
 ; CGSCC-NEXT:    ret i64 undef
@@ -76,7 +76,7 @@ define internal i64 @AccessPaddingOfStruct(%struct.Foo* byval(%struct.Foo) %a) {
 }
 
 define internal i64 @CaptureAStruct(%struct.Foo* byval(%struct.Foo) %a) {
-; CGSCC: Function Attrs: nofree norecurse noreturn nosync nounwind readnone
+; CGSCC: Function Attrs: nofree norecurse noreturn nosync nounwind memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@CaptureAStruct
 ; CGSCC-SAME: (i32 [[TMP0:%.*]], i64 [[TMP1:%.*]]) #[[ATTR2:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -104,9 +104,9 @@ loop:
   br label %loop
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { nofree norecurse noreturn nosync nounwind readnone }
+; CGSCC: attributes #[[ATTR0]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { nofree norecurse noreturn nosync nounwind memory(none) }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/inalloca.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/inalloca.ll
index 30ecb4450596c..01f537744a452 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/inalloca.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/inalloca.ll
@@ -8,7 +8,7 @@ target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:1
 
 ; Argpromote + sroa should change this to passing the two integers by value.
 define internal i32 @f(%struct.ss* inalloca(%struct.ss) %s) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: define {{[^@]+}}@f
 ; CHECK-SAME: (%struct.ss* noalias nocapture nofree noundef nonnull inalloca([[STRUCT_SS:%.*]]) align 4 dereferenceable(8) [[S:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -29,7 +29,7 @@ entry:
 }
 
 define i32 @main() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@main
 ; TUNIT-SAME: () #[[ATTR1:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
@@ -41,7 +41,7 @@ define i32 @main() {
 ; TUNIT-NEXT:    [[R:%.*]] = call i32 @f(%struct.ss* noalias nocapture nofree noundef nonnull inalloca([[STRUCT_SS]]) align 4 dereferenceable(8) [[S]]) #[[ATTR2:[0-9]+]]
 ; TUNIT-NEXT:    ret i32 [[R]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@main
 ; CGSCC-SAME: () #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -65,7 +65,7 @@ entry:
 
 ; Argpromote can't promote %a because of the icmp use.
 define internal i1 @g(%struct.ss* %a, %struct.ss* inalloca(%struct.ss) %b) nounwind  {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@g
 ; CGSCC-SAME: (%struct.ss* noalias nocapture nofree nonnull readnone align 4 dereferenceable(8) [[A:%.*]], %struct.ss* noalias nocapture nofree nonnull writeonly inalloca([[STRUCT_SS:%.*]]) align 4 dereferenceable(8) [[B:%.*]]) #[[ATTR2:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -77,13 +77,13 @@ entry:
 }
 
 define i32 @test() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@test
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    ret i32 0
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@test
 ; CGSCC-SAME: () #[[ATTR1]] {
 ; CGSCC-NEXT:  entry:
@@ -95,12 +95,12 @@ entry:
   ret i32 0
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR2]] = { nofree nosync nounwind readonly willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR3]] = { readonly willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR3]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/invalidation.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/invalidation.ll
index c23760a146f36..4446607a08fae 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/invalidation.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/invalidation.ll
@@ -21,7 +21,7 @@ entry:
 }
 
 define i32 @b() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@b
 ; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -33,7 +33,7 @@ entry:
 }
 
 define i32 @c() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@c
 ; CHECK-SAME: () #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -46,5 +46,5 @@ entry:
   ret i32 %result
 }
 ;.
-; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/live_called_from_dead.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/live_called_from_dead.ll
index 8d383f8c9f94c..8b878da52962b 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/live_called_from_dead.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/live_called_from_dead.ll
@@ -13,7 +13,7 @@ define internal void @dead() {
 }
 
 define internal i32 @test(i32* %X, i32* %Y) {
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@test
 ; CGSCC-SAME: (i32* noalias nocapture nofree noundef writeonly align 4 [[X:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:    br i1 true, label [[LIVE:%.*]], label [[DEAD:%.*]]
@@ -34,7 +34,7 @@ dead:
 }
 
 define internal i32 @caller(i32* %B) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@caller
 ; CGSCC-SAME: () #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:    [[A:%.*]] = alloca i32, align 4
@@ -48,13 +48,13 @@ define internal i32 @caller(i32* %B) {
 }
 
 define i32 @callercaller() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@callercaller
 ; TUNIT-SAME: () #[[ATTR0:[0-9]+]] {
 ; TUNIT-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; TUNIT-NEXT:    ret i32 0
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@callercaller
 ; CGSCC-SAME: () #[[ATTR2:[0-9]+]] {
 ; CGSCC-NEXT:    [[B:%.*]] = alloca i32, align 4
@@ -68,11 +68,11 @@ define i32 @callercaller() {
 }
 
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR3]] = { nofree nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR4]] = { readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR3]] = { nofree nosync nounwind willreturn memory(write) }
+; CGSCC: attributes #[[ATTR4]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/live_called_from_dead_2.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/live_called_from_dead_2.ll
index a2f862cf2cf0a..c65dfa45b305e 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/live_called_from_dead_2.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/live_called_from_dead_2.ll
@@ -13,7 +13,7 @@ define internal void @dead() {
 }
 
 define internal i32 @test(i32* %X, i32* %Y) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@test
 ; CHECK-SAME: (i32* noalias nocapture nofree noundef writeonly align 4 [[X:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    br i1 true, label [[LIVE:%.*]], label [[DEAD:%.*]]
@@ -34,14 +34,14 @@ dead:
 }
 
 define internal i32 @caller(i32* %B) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@caller
 ; TUNIT-SAME: (i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[B:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    [[A:%.*]] = alloca i32, align 4
 ; TUNIT-NEXT:    [[C:%.*]] = call i32 @test(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[B]]) #[[ATTR2:[0-9]+]]
 ; TUNIT-NEXT:    ret i32 undef
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@caller
 ; CGSCC-SAME: (i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[B:%.*]]) #[[ATTR0]] {
 ; CGSCC-NEXT:    [[A:%.*]] = alloca i32, align 4
@@ -55,14 +55,14 @@ define internal i32 @caller(i32* %B) {
 }
 
 define i32 @callercaller() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@callercaller
 ; TUNIT-SAME: () #[[ATTR1:[0-9]+]] {
 ; TUNIT-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; TUNIT-NEXT:    [[X:%.*]] = call i32 @caller(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[B]]) #[[ATTR2]]
 ; TUNIT-NEXT:    ret i32 0
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@callercaller
 ; CGSCC-SAME: () #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:    [[B:%.*]] = alloca i32, align 4
@@ -77,12 +77,12 @@ define i32 @callercaller() {
 }
 
 ;.
-; TUNIT: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn writeonly }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR3]] = { nounwind willreturn writeonly }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn memory(write) }
+; CGSCC: attributes #[[ATTR3]] = { nounwind willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/musttail.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/musttail.ll
index e913052a81279..a23e39156e7c8 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/musttail.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/musttail.ll
@@ -8,7 +8,7 @@
 %T = type { i32, i32, i32, i32 }
 
 define internal i32 @test(%T* %p) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: define {{[^@]+}}@test
 ; CHECK-SAME: (%T* nocapture nofree readonly [[P:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    [[A_GEP:%.*]] = getelementptr [[T:%.*]], %T* [[P]], i64 0, i32 3
@@ -27,13 +27,13 @@ define internal i32 @test(%T* %p) {
 }
 
 define i32 @caller(%T* %p) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; TUNIT-LABEL: define {{[^@]+}}@caller
 ; TUNIT-SAME: (%T* nocapture nofree readonly [[P:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    [[V:%.*]] = musttail call i32 @test(%T* nocapture nofree readonly [[P]]) #[[ATTR4:[0-9]+]]
 ; TUNIT-NEXT:    ret i32 [[V]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@caller
 ; CGSCC-SAME: (%T* nocapture nofree readonly [[P:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:    [[V:%.*]] = musttail call i32 @test(%T* nocapture nofree readonly [[P]]) #[[ATTR5:[0-9]+]]
@@ -46,12 +46,12 @@ define i32 @caller(%T* %p) {
 ; Don't promote arguments of musttail caller
 
 define i32 @foo(%T* %p, i32 %v) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@foo
 ; TUNIT-SAME: (%T* nocapture nofree readnone [[P:%.*]], i32 [[V:%.*]]) #[[ATTR1:[0-9]+]] {
 ; TUNIT-NEXT:    ret i32 0
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@foo
 ; CGSCC-SAME: (%T* nocapture nofree readnone [[P:%.*]], i32 [[V:%.*]]) #[[ATTR2:[0-9]+]] {
 ; CGSCC-NEXT:    ret i32 0
@@ -60,7 +60,7 @@ define i32 @foo(%T* %p, i32 %v) {
 }
 
 define internal i32 @test2(%T* %p, i32 %p2) {
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@test2
 ; CGSCC-SAME: (%T* nocapture nofree readonly [[P:%.*]], i32 [[P2:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:    [[A_GEP:%.*]] = getelementptr [[T:%.*]], %T* [[P]], i64 0, i32 3
@@ -68,7 +68,7 @@ define internal i32 @test2(%T* %p, i32 %p2) {
 ; CGSCC-NEXT:    [[A:%.*]] = load i32, i32* [[A_GEP]], align 4
 ; CGSCC-NEXT:    [[B:%.*]] = load i32, i32* [[B_GEP]], align 4
 ; CGSCC-NEXT:    [[V:%.*]] = add i32 [[A]], [[B]]
-; CGSCC-NEXT:    [[CA:%.*]] = musttail call noundef i32 @foo(%T* undef, i32 [[V]]) #[[ATTR6:[0-9]+]]
+; CGSCC-NEXT:    [[CA:%.*]] = musttail call noundef i32 @foo(%T* undef, i32 [[V]]) #[[ATTR5]]
 ; CGSCC-NEXT:    ret i32 [[CA]]
 ;
   %a.gep = getelementptr %T, %T* %p, i64 0, i32 3
@@ -81,12 +81,12 @@ define internal i32 @test2(%T* %p, i32 %p2) {
 }
 
 define i32 @caller2(%T* %g) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@caller2
 ; TUNIT-SAME: (%T* nocapture nofree readnone [[G:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i32 0
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@caller2
 ; CGSCC-SAME: (%T* nocapture nofree readonly align 4 [[G:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:    [[V:%.*]] = call noundef i32 @test2(%T* nocapture nofree readonly [[G]], i32 noundef 0) #[[ATTR5]]
@@ -101,14 +101,14 @@ define i32 @caller2(%T* %g) {
 ; is kept as well.
 
 define i32 @bar(%T* %p, i32 %v) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@bar
 ; TUNIT-SAME: (%T* nocapture nofree nonnull writeonly dereferenceable(4) [[P:%.*]], i32 [[V:%.*]]) #[[ATTR2:[0-9]+]] {
 ; TUNIT-NEXT:    [[I32PTR:%.*]] = getelementptr [[T:%.*]], %T* [[P]], i64 0, i32 0
 ; TUNIT-NEXT:    store i32 [[V]], i32* [[I32PTR]], align 4
 ; TUNIT-NEXT:    ret i32 0
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@bar
 ; CGSCC-SAME: (%T* nocapture nofree nonnull writeonly dereferenceable(4) [[P:%.*]], i32 [[V:%.*]]) #[[ATTR3:[0-9]+]] {
 ; CGSCC-NEXT:    [[I32PTR:%.*]] = getelementptr [[T:%.*]], %T* [[P]], i64 0, i32 0
@@ -121,7 +121,7 @@ define i32 @bar(%T* %p, i32 %v) {
 }
 
 define internal i32 @test2b(%T* %p, i32 %p2) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@test2b
 ; TUNIT-SAME: (%T* nocapture nofree readonly [[P:%.*]], i32 [[P2:%.*]]) #[[ATTR3:[0-9]+]] {
 ; TUNIT-NEXT:    [[A_GEP:%.*]] = getelementptr [[T:%.*]], %T* [[P]], i64 0, i32 3
@@ -129,10 +129,10 @@ define internal i32 @test2b(%T* %p, i32 %p2) {
 ; TUNIT-NEXT:    [[A:%.*]] = load i32, i32* [[A_GEP]], align 4
 ; TUNIT-NEXT:    [[B:%.*]] = load i32, i32* [[B_GEP]], align 4
 ; TUNIT-NEXT:    [[V:%.*]] = add i32 [[A]], [[B]]
-; TUNIT-NEXT:    [[CA:%.*]] = musttail call noundef i32 @bar(%T* undef, i32 [[V]]) #[[ATTR5:[0-9]+]]
+; TUNIT-NEXT:    [[CA:%.*]] = musttail call noundef i32 @bar(%T* undef, i32 [[V]]) #[[ATTR4]]
 ; TUNIT-NEXT:    ret i32 [[CA]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@test2b
 ; CGSCC-SAME: (%T* nocapture nofree readonly [[P:%.*]], i32 [[P2:%.*]]) #[[ATTR4:[0-9]+]] {
 ; CGSCC-NEXT:    [[A_GEP:%.*]] = getelementptr [[T:%.*]], %T* [[P]], i64 0, i32 3
@@ -140,7 +140,7 @@ define internal i32 @test2b(%T* %p, i32 %p2) {
 ; CGSCC-NEXT:    [[A:%.*]] = load i32, i32* [[A_GEP]], align 4
 ; CGSCC-NEXT:    [[B:%.*]] = load i32, i32* [[B_GEP]], align 4
 ; CGSCC-NEXT:    [[V:%.*]] = add i32 [[A]], [[B]]
-; CGSCC-NEXT:    [[CA:%.*]] = musttail call noundef i32 @bar(%T* undef, i32 [[V]]) #[[ATTR7:[0-9]+]]
+; CGSCC-NEXT:    [[CA:%.*]] = musttail call noundef i32 @bar(%T* undef, i32 [[V]]) #[[ATTR6:[0-9]+]]
 ; CGSCC-NEXT:    ret i32 [[CA]]
 ;
   %a.gep = getelementptr %T, %T* %p, i64 0, i32 3
@@ -153,37 +153,34 @@ define internal i32 @test2b(%T* %p, i32 %p2) {
 }
 
 define i32 @caller2b(%T* %g) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@caller2b
 ; TUNIT-SAME: (%T* nocapture nofree readonly [[G:%.*]]) #[[ATTR3]] {
-; TUNIT-NEXT:    [[V:%.*]] = call noundef i32 @test2b(%T* nocapture nofree readonly [[G]], i32 undef) #[[ATTR6:[0-9]+]]
+; TUNIT-NEXT:    [[V:%.*]] = call noundef i32 @test2b(%T* nocapture nofree readonly [[G]], i32 undef) #[[ATTR4]]
 ; TUNIT-NEXT:    ret i32 [[V]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@caller2b
 ; CGSCC-SAME: (%T* nocapture nofree readonly align 4 [[G:%.*]]) #[[ATTR4]] {
-; CGSCC-NEXT:    [[V:%.*]] = call noundef i32 @test2b(%T* nocapture nofree readonly [[G]], i32 noundef 0) #[[ATTR8:[0-9]+]]
+; CGSCC-NEXT:    [[V:%.*]] = call noundef i32 @test2b(%T* nocapture nofree readonly [[G]], i32 noundef 0) #[[ATTR7:[0-9]+]]
 ; CGSCC-NEXT:    ret i32 [[V]]
 ;
   %v = call i32 @test2b(%T* %g, i32 0)
   ret i32 %v
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR2]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR3]] = { argmemonly nofree norecurse nosync nounwind willreturn }
-; TUNIT: attributes #[[ATTR4]] = { nofree nosync nounwind readonly willreturn }
-; TUNIT: attributes #[[ATTR5]] = { nofree nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR6]] = { nofree nosync nounwind willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; TUNIT: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) }
+; TUNIT: attributes #[[ATTR4]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR1]] = { argmemonly nofree nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR3]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR4]] = { argmemonly nofree nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR5]] = { readonly willreturn }
-; CGSCC: attributes #[[ATTR6]] = { readnone willreturn }
-; CGSCC: attributes #[[ATTR7]] = { nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR8]] = { nounwind willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(argmem: read) }
+; CGSCC: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; CGSCC: attributes #[[ATTR4]] = { nofree nosync nounwind willreturn memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR5]] = { willreturn }
+; CGSCC: attributes #[[ATTR6]] = { nounwind willreturn memory(write) }
+; CGSCC: attributes #[[ATTR7]] = { nounwind willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/pr33641_remove_arg_dbgvalue.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/pr33641_remove_arg_dbgvalue.ll
index c7182fbd3f5d6..bc5d660beb7f3 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/pr33641_remove_arg_dbgvalue.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/pr33641_remove_arg_dbgvalue.ll
@@ -12,7 +12,7 @@
 %fun_t = type void (%p_t)*
 
 define void @foo() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@foo
 ; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    [[TMP:%.*]] = alloca void (i16*)*, align 8
@@ -24,7 +24,7 @@ define void @foo() {
 }
 
 define internal void @bar(%p_t %p)  {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@bar
 ; CGSCC-SAME: (i16* nocapture nofree readnone [[P:%.*]]) #[[ATTR0]] {
 ; CGSCC-NEXT:    call void @llvm.dbg.value(metadata i16* [[P]], metadata [[META3:![0-9]+]], metadata !DIExpression()) #[[ATTR2:[0-9]+]], !dbg [[DBG5:![0-9]+]]
@@ -47,12 +47,12 @@ declare void @llvm.dbg.value(metadata, metadata, metadata)
 !5 = !DIExpression()
 !6 = !DILocation(line: 1, column: 1, scope: !3)
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR1:[0-9]+]] = { nocallback nofree nosync nounwind readnone speculatable willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR1:[0-9]+]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR1:[0-9]+]] = { nocallback nofree nosync nounwind readnone speculatable willreturn }
-; CGSCC: attributes #[[ATTR2]] = { readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1:[0-9]+]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { willreturn }
 ;.
 ; TUNIT: [[META0:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C, file: !1, isOptimized: false, runtimeVersion: 0, emissionKind: NoDebug)
 ; TUNIT: [[META1:![0-9]+]] = !DIFile(filename: "test.c", directory: "")

diff  --git a/llvm/test/Transforms/Attributor/ArgumentPromotion/sret.ll b/llvm/test/Transforms/Attributor/ArgumentPromotion/sret.ll
index b9e8031e5b7b2..1ddebf1fe47a2 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/sret.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/sret.ll
@@ -7,13 +7,13 @@ target triple = "x86_64-pc-windows-msvc"
 
 define internal void @add({i32, i32}* %this, i32* sret(i32) %r) {
 ;
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@add
 ; TUNIT-SAME: ({ i32, i32 }* noalias nocapture nofree nonnull readnone align 8 dereferenceable(8) [[THIS:%.*]], i32* noalias nocapture nofree noundef nonnull writeonly sret(i32) align 4 dereferenceable(4) [[R:%.*]]) #[[ATTR0:[0-9]+]] {
 ; TUNIT-NEXT:    store i32 undef, i32* [[R]], align 4
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@add
 ; CGSCC-SAME: ({ i32, i32 }* noalias nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) [[THIS:%.*]], i32* noalias nocapture nofree noundef nonnull writeonly sret(i32) align 4 dereferenceable(4) [[R:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:    [[AP:%.*]] = getelementptr { i32, i32 }, { i32, i32 }* [[THIS]], i32 0, i32 0
@@ -34,14 +34,14 @@ define internal void @add({i32, i32}* %this, i32* sret(i32) %r) {
 }
 
 define void @f() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@f
 ; TUNIT-SAME: () #[[ATTR1:[0-9]+]] {
 ; TUNIT-NEXT:    [[R:%.*]] = alloca i32, align 4
 ; TUNIT-NEXT:    call void @add({ i32, i32 }* noalias nocapture nofree nonnull readnone align 8 dereferenceable(8) undef, i32* noalias nocapture nofree noundef nonnull writeonly sret(i32) align 4 dereferenceable(4) [[R]]) #[[ATTR2:[0-9]+]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@f
 ; CGSCC-SAME: () #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:    [[R:%.*]] = alloca i32, align 4
@@ -56,11 +56,11 @@ define void @f() {
   ret void
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn writeonly }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(none) }
 ; CGSCC: attributes #[[ATTR2]] = { nounwind willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/2009-09-24-byval-ptr.ll b/llvm/test/Transforms/Attributor/IPConstantProp/2009-09-24-byval-ptr.ll
index dfa45b12b1d50..8992fb1e991a3 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/2009-09-24-byval-ptr.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/2009-09-24-byval-ptr.ll
@@ -45,7 +45,7 @@ return:                                           ; preds = %entry
 }
 
 define internal i32 @vfu2(%struct.MYstr* byval(%struct.MYstr) align 4 %u) nounwind readonly {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: define {{[^@]+}}@vfu2
 ; CHECK-SAME: (i8 [[TMP0:%.*]], i32 [[TMP1:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -86,7 +86,7 @@ define i32 @unions() nounwind {
 ; TUNIT-NEXT:    [[TMP2:%.*]] = load i8, i8* [[MYSTR_CAST1]], align 8
 ; TUNIT-NEXT:    [[MYSTR_0_12:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* @mystr, i64 0, i32 1
 ; TUNIT-NEXT:    [[TMP3:%.*]] = load i32, i32* [[MYSTR_0_12]], align 8
-; TUNIT-NEXT:    [[RESULT:%.*]] = call i32 @vfu2(i8 [[TMP2]], i32 [[TMP3]]) #[[ATTR2:[0-9]+]]
+; TUNIT-NEXT:    [[RESULT:%.*]] = call i32 @vfu2(i8 [[TMP2]], i32 [[TMP3]]) #[[ATTR0]]
 ; TUNIT-NEXT:    ret i32 [[RESULT]]
 ;
 ; CGSCC: Function Attrs: nounwind
@@ -110,7 +110,7 @@ entry:
 }
 
 define internal i32 @vfu2_v2(%struct.MYstr* byval(%struct.MYstr) align 4 %u) nounwind readonly {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: define {{[^@]+}}@vfu2_v2
 ; CHECK-SAME: (i8 [[TMP0:%.*]], i32 [[TMP1:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:  entry:
@@ -155,7 +155,7 @@ define i32 @unions_v2() nounwind {
 ; TUNIT-NEXT:    [[TMP2:%.*]] = load i8, i8* [[MYSTR_CAST1]], align 8
 ; TUNIT-NEXT:    [[MYSTR_0_12:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* @mystr, i64 0, i32 1
 ; TUNIT-NEXT:    [[TMP3:%.*]] = load i32, i32* [[MYSTR_0_12]], align 8
-; TUNIT-NEXT:    [[RESULT:%.*]] = call i32 @vfu2_v2(i8 [[TMP2]], i32 [[TMP3]]) #[[ATTR2]]
+; TUNIT-NEXT:    [[RESULT:%.*]] = call i32 @vfu2_v2(i8 [[TMP2]], i32 [[TMP3]]) #[[ATTR0]]
 ; TUNIT-NEXT:    ret i32 [[RESULT]]
 ;
 ; CGSCC: Function Attrs: nounwind
@@ -172,10 +172,6 @@ entry:
   ret i32 %result
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nounwind }
-; TUNIT: attributes #[[ATTR1]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; TUNIT: attributes #[[ATTR2]] = { nounwind readonly }
-;.
-; CGSCC: attributes #[[ATTR0]] = { nounwind }
-; CGSCC: attributes #[[ATTR1]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
+; CHECK: attributes #[[ATTR0]] = { nounwind }
+; CHECK: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/PR16052.ll b/llvm/test/Transforms/Attributor/IPConstantProp/PR16052.ll
index 9e8e666991c9a..206db6d74e564 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/PR16052.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/PR16052.ll
@@ -7,13 +7,13 @@ target triple = "x86_64-unknown-linux-gnu"
 
 define i64 @fn2() {
 ;
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@fn2
 ; TUNIT-SAME: () #[[ATTR0:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    ret i64 undef
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@fn2
 ; CGSCC-SAME: () #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -31,7 +31,7 @@ entry:
 
 define i64 @fn2b(i32 %arg) {
 ;
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@fn2b
 ; TUNIT-SAME: (i32 [[ARG:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:  entry:
@@ -39,7 +39,7 @@ define i64 @fn2b(i32 %arg) {
 ; TUNIT-NEXT:    [[DIV:%.*]] = sdiv i64 8, [[CONV]]
 ; TUNIT-NEXT:    ret i64 [[DIV]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@fn2b
 ; CGSCC-SAME: (i32 [[ARG:%.*]]) #[[ATTR0]] {
 ; CGSCC-NEXT:  entry:
@@ -56,13 +56,13 @@ entry:
 }
 
 define i64 @fn2c() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@fn2c
 ; TUNIT-SAME: () #[[ATTR0]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    ret i64 42
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@fn2c
 ; CGSCC-SAME: () #[[ATTR0]] {
 ; CGSCC-NEXT:  entry:
@@ -79,7 +79,7 @@ entry:
 }
 
 define internal i64 @fn1(i64 %p1) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@fn1
 ; CGSCC-SAME: (i64 returned [[P1:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -91,9 +91,9 @@ entry:
   ret i64 %cond
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/PR26044.ll b/llvm/test/Transforms/Attributor/IPConstantProp/PR26044.ll
index a2627ecd50542..b65be6a5d511d 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/PR26044.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/PR26044.ll
@@ -6,7 +6,7 @@ target triple = "x86_64-unknown-linux-gnu"
 
 define void @fn2(i32* %P, i1 %C) {
 ;
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@fn2
 ; TUNIT-SAME: (i32* nocapture nofree [[P:%.*]], i1 [[C:%.*]]) #[[ATTR0:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
@@ -21,7 +21,7 @@ define void @fn2(i32* %P, i1 %C) {
 ; TUNIT:       exit:
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind
+; CGSCC: Function Attrs: nofree nosync nounwind memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@fn2
 ; CGSCC-SAME: (i32* nocapture nofree nonnull align 4 dereferenceable(4) [[P:%.*]], i1 [[C:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -54,7 +54,7 @@ exit:
 }
 
 define internal i32 @fn1(i32 %p1) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@fn1
 ; CGSCC-SAME: (i32 returned [[P1:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -116,7 +116,7 @@ exit:
 }
 
 define internal i32 @fn0(i32 %p1) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@fn0
 ; CGSCC-SAME: (i32 returned [[P1:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:  entry:
@@ -128,10 +128,10 @@ entry:
   ret i32 %cond
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind memory(argmem: readwrite) }
 ; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind null_pointer_is_valid }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree nosync nounwind }
-; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree nosync nounwind memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind null_pointer_is_valid }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/PR43857.ll b/llvm/test/Transforms/Attributor/IPConstantProp/PR43857.ll
index 97168799d9814..79a6774836475 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/PR43857.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/PR43857.ll
@@ -8,7 +8,7 @@
 declare dso_local fastcc float @bar(%struct.wobble* noalias, <8 x i32>) unnamed_addr
 
 define %struct.zot @widget(<8 x i32> %arg) local_unnamed_addr {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@widget
 ; CHECK-SAME: (<8 x i32> [[ARG:%.*]]) local_unnamed_addr #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  bb:
@@ -19,14 +19,14 @@ bb:
 }
 
 define void @baz(<8 x i32> %arg) local_unnamed_addr {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@baz
 ; TUNIT-SAME: (<8 x i32> [[ARG:%.*]]) local_unnamed_addr #[[ATTR0]] {
 ; TUNIT-NEXT:  bb:
 ; TUNIT-NEXT:    [[TMP1:%.*]] = extractvalue [[STRUCT_ZOT:%.*]] undef, 0, 0
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@baz
 ; CGSCC-SAME: (<8 x i32> [[ARG:%.*]]) local_unnamed_addr #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  bb:
@@ -38,8 +38,8 @@ bb:
   ret void
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(none) }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/arg-count-mismatch.ll b/llvm/test/Transforms/Attributor/IPConstantProp/arg-count-mismatch.ll
index 1222ca360a3e3..8ddb79b4517e5 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/arg-count-mismatch.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/arg-count-mismatch.ll
@@ -40,7 +40,7 @@ define dso_local i16 @foo(i16 %a) {
 ; TUNIT-NEXT:    [[CALL:%.*]] = call i16 bitcast (i16 (i16, i16)* @bar to i16 (i16)*)(i16 [[A]])
 ; TUNIT-NEXT:    ret i16 [[CALL]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone
+; CGSCC: Function Attrs: nofree nosync nounwind
 ; CGSCC-LABEL: define {{[^@]+}}@foo
 ; CGSCC-SAME: (i16 [[A:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:    [[CALL:%.*]] = call i16 bitcast (i16 (i16, i16)* @bar to i16 (i16)*)(i16 [[A]])
@@ -51,7 +51,7 @@ define dso_local i16 @foo(i16 %a) {
 }
 
 define internal i16 @bar(i16 %p1, i16 %p2) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@bar
 ; CHECK-SAME: (i16 [[P1:%.*]], i16 [[P2:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:    ret i16 0
@@ -66,7 +66,7 @@ define dso_local i16 @foo2(i16 %a) {
 ; TUNIT-NEXT:    [[CALL:%.*]] = call i16 bitcast (i16 (i16, i16)* @bar2 to i16 (i16)*)(i16 [[A]])
 ; TUNIT-NEXT:    ret i16 [[CALL]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone
+; CGSCC: Function Attrs: nofree nosync nounwind
 ; CGSCC-LABEL: define {{[^@]+}}@foo2
 ; CGSCC-SAME: (i16 [[A:%.*]]) #[[ATTR0]] {
 ; CGSCC-NEXT:    [[CALL:%.*]] = call i16 bitcast (i16 (i16, i16)* @bar2 to i16 (i16)*)(i16 [[A]])
@@ -77,7 +77,7 @@ define dso_local i16 @foo2(i16 %a) {
 }
 
 define internal i16 @bar2(i16 %p1, i16 %p2) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@bar2
 ; CHECK-SAME: (i16 [[P1:%.*]], i16 [[P2:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:    [[A:%.*]] = add i16 [[P1]], [[P2]]
@@ -101,7 +101,7 @@ define dso_local i16 @vararg_tests(i16 %a) {
 ; TUNIT-NEXT:    [[ADD:%.*]] = add i16 7, [[CALL2]]
 ; TUNIT-NEXT:    ret i16 [[ADD]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone
+; CGSCC: Function Attrs: nofree nosync nounwind
 ; CGSCC-LABEL: define {{[^@]+}}@vararg_tests
 ; CGSCC-SAME: (i16 [[A:%.*]]) #[[ATTR0]] {
 ; CGSCC-NEXT:    [[CALL1:%.*]] = call i16 (i16, ...) @vararg_prop(i16 noundef 7, i16 noundef 8, i16 [[A]]) #[[ATTR2:[0-9]+]]
@@ -116,7 +116,7 @@ define dso_local i16 @vararg_tests(i16 %a) {
 }
 
 define internal i16 @vararg_prop(i16 %p1, ...) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@vararg_prop
 ; CGSCC-SAME: (i16 [[P1:%.*]], ...) #[[ATTR1]] {
 ; CGSCC-NEXT:    ret i16 7
@@ -125,7 +125,7 @@ define internal i16 @vararg_prop(i16 %p1, ...) {
 }
 
 define internal i16 @vararg_no_prop(i16 %p1, i16 %p2, ...) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@vararg_no_prop
 ; CHECK-SAME: (i16 [[P1:%.*]], i16 [[P2:%.*]], ...) #[[ATTR1]] {
 ; CHECK-NEXT:    ret i16 7
@@ -135,9 +135,9 @@ define internal i16 @vararg_no_prop(i16 %p1, i16 %p2, ...) {
 
 ;.
 ; TUNIT: attributes #[[ATTR0]] = { norecurse }
-; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree nosync nounwind readnone }
-; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree nosync nounwind }
+; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/arg-type-mismatch.ll b/llvm/test/Transforms/Attributor/IPConstantProp/arg-type-mismatch.ll
index 701aa37bf66eb..7b89d2cccf6b2 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/arg-type-mismatch.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/arg-type-mismatch.ll
@@ -12,7 +12,7 @@ define dso_local i16 @foo(i16 %a) {
 ; TUNIT-NEXT:    [[CALL:%.*]] = call i16 bitcast (i16 (i16, i16)* @bar to i16 (i16, i32)*)(i16 [[A]], i32 7)
 ; TUNIT-NEXT:    ret i16 [[CALL]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone
+; CGSCC: Function Attrs: nofree nosync nounwind
 ; CGSCC-LABEL: define {{[^@]+}}@foo
 ; CGSCC-SAME: (i16 [[A:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:    [[CALL:%.*]] = call i16 bitcast (i16 (i16, i16)* @bar to i16 (i16, i32)*)(i16 [[A]], i32 7)
@@ -23,7 +23,7 @@ define dso_local i16 @foo(i16 %a) {
 }
 
 define internal i16 @bar(i16 %p1, i16 %p2) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@bar
 ; CHECK-SAME: (i16 [[P1:%.*]], i16 returned [[P2:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:    ret i16 [[P2]]
@@ -34,8 +34,8 @@ define internal i16 @bar(i16 %p1, i16 %p2) {
 
 ;.
 ; TUNIT: attributes #[[ATTR0]] = { norecurse }
-; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree nosync nounwind readnone }
-; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree nosync nounwind }
+; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/comdat-ipo.ll b/llvm/test/Transforms/Attributor/IPConstantProp/comdat-ipo.ll
index 4d6ce9cb836c3..34141fc57e1bb 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/comdat-ipo.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/comdat-ipo.ll
@@ -5,7 +5,7 @@
 ; See PR26774
 
 define i32 @baz() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@baz
 ; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    ret i32 10
@@ -45,8 +45,8 @@ define i32 @bar() {
   ret i32 %val
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ; TUNIT: attributes #[[ATTR1]] = { norecurse }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/dangling-block-address.ll b/llvm/test/Transforms/Attributor/IPConstantProp/dangling-block-address.ll
index 43b30e6bc7de2..10c4d87f53491 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/dangling-block-address.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/dangling-block-address.ll
@@ -17,7 +17,7 @@
 ; CGSCC: @[[BAR_L:[a-zA-Z0-9_$"\\.-]+]] = internal constant [2 x i8*] [i8* blockaddress(@bar, [[LAB0:%.*]]), i8* blockaddress(@bar, [[END:%.*]])]
 ;.
 define internal void @foo(i32 %x) nounwind readnone {
-; CGSCC: Function Attrs: nounwind readnone
+; CGSCC: Function Attrs: nounwind memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@foo
 ; CGSCC-SAME: (i32 [[X:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -32,7 +32,7 @@ entry:
 }
 
 define internal void @bar(i32* nocapture %pc) nounwind readonly {
-; CGSCC: Function Attrs: nounwind readonly
+; CGSCC: Function Attrs: nounwind memory(read)
 ; CGSCC-LABEL: define {{[^@]+}}@bar
 ; CGSCC-SAME: (i32* nocapture [[PC:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -70,13 +70,13 @@ indirectgoto:                                     ; preds = %lab0, %entry
 }
 
 define i32 @main() nounwind readnone {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@main
 ; TUNIT-SAME: () #[[ATTR0:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    ret i32 0
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@main
 ; CGSCC-SAME: () #[[ATTR2:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -86,9 +86,9 @@ entry:
   ret i32 0
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nounwind readnone }
-; CGSCC: attributes #[[ATTR1]] = { nounwind readonly }
-; CGSCC: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nounwind memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nounwind memory(read) }
+; CGSCC: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/deadarg.ll b/llvm/test/Transforms/Attributor/IPConstantProp/deadarg.ll
index 96fb44bd6a982..ef8005392407d 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/deadarg.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/deadarg.ll
@@ -12,7 +12,7 @@ define internal void @foo(i32 %X) {
 }
 
 define void @bar() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@bar
 ; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    ret void
@@ -20,5 +20,5 @@ define void @bar() {
   ret void
 }
 ;.
-; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/fp-bc-icmp-const-fold.ll b/llvm/test/Transforms/Attributor/IPConstantProp/fp-bc-icmp-const-fold.ll
index 64cbc41ff7c53..c24c9b2f3bc80 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/fp-bc-icmp-const-fold.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/fp-bc-icmp-const-fold.ll
@@ -5,7 +5,7 @@ target datalayout = "E-m:e-i64:64-n32:64"
 target triple = "powerpc64le-unknown-linux"
 
 define void @test(i32 signext %n) {
-; CHECK: Function Attrs: nofree norecurse noreturn nosync nounwind readnone
+; CHECK: Function Attrs: nofree norecurse noreturn nosync nounwind memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test
 ; CHECK-SAME: (i32 signext [[N:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -79,5 +79,5 @@ _ZN5boost4math4signIgEEiRKT_.exit30:              ; preds = %cond.false.i28, %if
 }
 
 ;.
-; CHECK: attributes #[[ATTR0]] = { nofree norecurse noreturn nosync nounwind readnone }
+; CHECK: attributes #[[ATTR0]] = { nofree norecurse noreturn nosync nounwind memory(none) }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/global.ll b/llvm/test/Transforms/Attributor/IPConstantProp/global.ll
index 3c567d10d6361..0dceadd6968d0 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/global.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/global.ll
@@ -8,7 +8,7 @@
 ; CHECK: @[[_ZL6TEST1G:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 42, align 4
 ;.
 define void @_Z7test1f1v() nounwind {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@_Z7test1f1v
 ; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -32,7 +32,7 @@ if.end:                                           ; preds = %if.then, %entry
 }
 
 define i32 @_Z7test1f2v() nounwind {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@_Z7test1f2v
 ; CHECK-SAME: () #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -43,5 +43,5 @@ entry:
   ret i32 %tmp
 }
 ;.
-; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/multiple_callbacks.ll b/llvm/test/Transforms/Attributor/IPConstantProp/multiple_callbacks.ll
index 835d8df51a94b..b86c92a306cc5 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/multiple_callbacks.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/multiple_callbacks.ll
@@ -38,7 +38,7 @@
 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 
 define internal i32 @cb0(i32 %zero) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@cb0
 ; CHECK-SAME: (i32 [[ZERO:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -49,7 +49,7 @@ entry:
 }
 
 define internal i32 @cb1(i32 %unknown) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@cb1
 ; CHECK-SAME: (i32 noundef [[UNKNOWN:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -60,13 +60,13 @@ entry:
 }
 
 define internal i32 @cb2(i32 %unknown) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@cb2
 ; TUNIT-SAME: (i32 noundef [[UNKNOWN:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    ret i32 [[UNKNOWN]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@cb2
 ; CGSCC-SAME: (i32 noundef [[UNKNOWN:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -78,7 +78,7 @@ entry:
 }
 
 define internal i32 @cb3(i32 %unknown) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@cb3
 ; CHECK-SAME: (i32 noundef [[UNKNOWN:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -89,7 +89,7 @@ entry:
 }
 
 define internal i32 @cb4(i32 %unknown) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@cb4
 ; CHECK-SAME: (i32 noundef [[UNKNOWN:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -125,10 +125,10 @@ declare !callback !3 void @broker(i32 (i32)*, i32 (i32)*, i32 (i32)*, i32, i32)
 !2 = !{i64 2, i64 3, i1 false}
 !3 = !{!0, !2, !1}
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(none) }
 ;.
 ; CHECK: [[META0:![0-9]+]] = !{!1, !2, !3}
 ; CHECK: [[META1:![0-9]+]] = !{i64 0, i64 3, i1 false}

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/musttail-call.ll b/llvm/test/Transforms/Attributor/IPConstantProp/musttail-call.ll
index 6bdd396c2a6ac..539faa222c5dd 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/musttail-call.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/musttail-call.ll
@@ -78,7 +78,7 @@ define internal i8* @side_effects(i8 %v) {
 }
 
 define internal i8* @no_side_effects(i8 %v) readonly nounwind {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@no_side_effects
 ; CGSCC-SAME: (i8 [[V:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:    ret i8* null
@@ -96,5 +96,5 @@ define internal i8* @dont_zap_me(i8 %v) {
   ret i8* null
 }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/pthreads.ll b/llvm/test/Transforms/Attributor/IPConstantProp/pthreads.ll
index 05f86d3d1b709..451ccd13d5b65 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/pthreads.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/pthreads.ll
@@ -68,7 +68,7 @@ entry:
 declare !callback !0 dso_local i32 @pthread_create(i64*, %union.pthread_attr_t*, i8* (i8*)*, i8*)
 
 define internal i8* @foo(i8* %arg) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@foo
 ; CHECK-SAME: (i8* noalias nocapture nofree readnone align 4294967296 [[ARG:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -79,7 +79,7 @@ entry:
 }
 
 define internal i8* @bar(i8* %arg) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@bar
 ; CHECK-SAME: (i8* noalias nocapture nofree nonnull readnone align 8 dereferenceable(8) [[ARG:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -90,7 +90,7 @@ entry:
 }
 
 define internal i8* @baz(i8* %arg) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@baz
 ; CHECK-SAME: (i8* noalias nofree noundef nonnull readnone returned align 8 dereferenceable(1) "no-capture-maybe-returned" [[ARG:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -101,7 +101,7 @@ entry:
 }
 
 define internal i8* @buz(i8* %arg) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@buz
 ; CHECK-SAME: (i8* noalias nofree noundef nonnull readnone returned align 8 dereferenceable(1) "no-capture-maybe-returned" [[ARG:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -114,7 +114,7 @@ entry:
 !1 = !{i64 2, i64 3, i1 false}
 !0 = !{!1}
 ;.
-; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.
 ; CHECK: [[META0:![0-9]+]] = !{!1}
 ; CHECK: [[META1:![0-9]+]] = !{i64 2, i64 3, i1 false}

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/recursion.ll b/llvm/test/Transforms/Attributor/IPConstantProp/recursion.ll
index d268731f8ddb2..ae2060ac876e0 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/recursion.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/recursion.ll
@@ -5,7 +5,7 @@
 ; CHECK-NOT: %X
 
 define internal i32 @foo(i32 %X) {
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@foo
 ; CGSCC-SAME: () #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:    ret i32 undef
@@ -16,12 +16,12 @@ define internal i32 @foo(i32 %X) {
 }
 
 define void @bar() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@bar
 ; TUNIT-SAME: () #[[ATTR0:[0-9]+]] {
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@bar
 ; CGSCC-SAME: () #[[ATTR0]] {
 ; CGSCC-NEXT:    ret void
@@ -31,7 +31,7 @@ define void @bar() {
 }
 
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree nosync nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree nosync nounwind willreturn memory(none) }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/remove-call-inst.ll b/llvm/test/Transforms/Attributor/IPConstantProp/remove-call-inst.ll
index 07c1c4f0296d1..ed8ebd2f02901 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/remove-call-inst.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/remove-call-inst.ll
@@ -9,13 +9,13 @@
 ; FIXME: Remove obsolete calls/instructions
 
 define i32 @main() noreturn nounwind {
-; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@main
 ; TUNIT-SAME: () #[[ATTR0:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    ret i32 123
 ;
-; CGSCC: Function Attrs: nofree noreturn nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree noreturn nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@main
 ; CGSCC-SAME: () #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -28,7 +28,7 @@ entry:
 }
 
 define internal i32 @wwrite(i64 %i) nounwind readnone {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@wwrite
 ; CGSCC-SAME: () #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -54,9 +54,9 @@ return:
   ret i32 0
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse noreturn nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse noreturn nosync nounwind willreturn memory(none) }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree noreturn nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree noreturn nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { nounwind willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/return-argument.ll b/llvm/test/Transforms/Attributor/IPConstantProp/return-argument.ll
index 96772b1681ba9..af767ba061051 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/return-argument.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/return-argument.ll
@@ -4,7 +4,7 @@
 
 ;; This function returns its second argument on all return statements
 define internal i32* @incdec(i1 %C, i32* %V) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@incdec
 ; TUNIT-SAME: (i1 [[C:%.*]], i32* noalias nofree noundef nonnull returned writeonly align 4 dereferenceable(4) "no-capture-maybe-returned" [[V:%.*]]) #[[ATTR0:[0-9]+]] {
 ; TUNIT-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
@@ -13,7 +13,7 @@ define internal i32* @incdec(i1 %C, i32* %V) {
 ; TUNIT:       F:
 ; TUNIT-NEXT:    ret i32* [[V]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@incdec
 ; CGSCC-SAME: (i1 [[C:%.*]], i32* nofree noundef nonnull returned align 4 dereferenceable(4) "no-capture-maybe-returned" [[V:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:    [[X:%.*]] = load i32, i32* [[V]], align 4
@@ -44,7 +44,7 @@ F:              ; preds = %0
 ;; This function returns its first argument as a part of a multiple return
 ;; value
 define internal { i32, i32 } @foo(i32 %A, i32 %B) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@foo
 ; CGSCC-SAME: (i32 noundef [[A:%.*]], i32 noundef [[B:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:    [[X:%.*]] = add i32 [[A]], [[B]]
@@ -59,7 +59,7 @@ define internal { i32, i32 } @foo(i32 %A, i32 %B) {
 }
 
 define void @caller(i1 %C) personality i32 (...)* @__gxx_personality_v0 {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@caller
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR1:[0-9]+]] personality i32 (...)* @__gxx_personality_v0 {
 ; TUNIT-NEXT:    [[Q:%.*]] = alloca i32, align 4
@@ -79,7 +79,7 @@ define void @caller(i1 %C) personality i32 (...)* @__gxx_personality_v0 {
 ; CGSCC-NEXT:    [[W:%.*]] = call align 4 i32* @incdec(i1 [[C]], i32* nofree noundef nonnull align 4 dereferenceable(4) [[Q]]) #[[ATTR3:[0-9]+]]
 ; CGSCC-NEXT:    [[S1:%.*]] = call { i32, i32 } @foo(i32 noundef 1, i32 noundef 2) #[[ATTR4:[0-9]+]]
 ; CGSCC-NEXT:    [[X1:%.*]] = extractvalue { i32, i32 } [[S1]], 0
-; CGSCC-NEXT:    [[S2:%.*]] = call { i32, i32 } @foo(i32 noundef 3, i32 noundef 4) #[[ATTR5:[0-9]+]]
+; CGSCC-NEXT:    [[S2:%.*]] = call { i32, i32 } @foo(i32 noundef 3, i32 noundef 4) #[[ATTR3]]
 ; CGSCC-NEXT:    br label [[OK:%.*]]
 ; CGSCC:       OK:
 ; CGSCC-NEXT:    [[X2:%.*]] = extractvalue { i32, i32 } [[S2]], 0
@@ -118,14 +118,13 @@ RET:
 
 declare i32 @__gxx_personality_v0(...)
 ;.
-; TUNIT: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn writeonly }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn }
 ; CGSCC: attributes #[[ATTR3]] = { nounwind willreturn }
-; CGSCC: attributes #[[ATTR4]] = { readnone willreturn }
-; CGSCC: attributes #[[ATTR5]] = { nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR4]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/return-constant.ll b/llvm/test/Transforms/Attributor/IPConstantProp/return-constant.ll
index ea4bcd791ac97..604af5031c656 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/return-constant.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/return-constant.ll
@@ -5,7 +5,7 @@
 ; FIXME: icmp folding is missing
 
 define i1 @invokecaller(i1 %C) personality i32 (...)* @__gxx_personality_v0 {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@invokecaller
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR0:[0-9]+]] personality i32 (...)* @__gxx_personality_v0 {
 ; TUNIT-NEXT:    [[X:%.*]] = call i32 @foo(i1 [[C]]) #[[ATTR1:[0-9]+]]
@@ -15,7 +15,7 @@ define i1 @invokecaller(i1 %C) personality i32 (...)* @__gxx_personality_v0 {
 ; TUNIT:       FAIL:
 ; TUNIT-NEXT:    unreachable
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@invokecaller
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR0:[0-9]+]] personality i32 (...)* @__gxx_personality_v0 {
 ; CGSCC-NEXT:    [[X:%.*]] = call i32 @foo(i1 [[C]]) #[[ATTR2:[0-9]+]]
@@ -37,7 +37,7 @@ FAIL:
 }
 
 define internal i32 @foo(i1 %C) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@foo
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
@@ -46,7 +46,7 @@ define internal i32 @foo(i1 %C) {
 ; TUNIT:       F:
 ; TUNIT-NEXT:    ret i32 undef
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@foo
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
@@ -65,12 +65,12 @@ F:              ; preds = %0
 }
 
 define i1 @caller(i1 %C) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@caller
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    ret i1 true
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@caller
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR0]] {
 ; CGSCC-NEXT:    [[X:%.*]] = call i32 @foo(i1 [[C]]) #[[ATTR3:[0-9]+]]
@@ -84,11 +84,11 @@ define i1 @caller(i1 %C) {
 
 declare i32 @__gxx_personality_v0(...)
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR1]] = { nounwind readnone }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR1]] = { nounwind }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR3]] = { readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { nounwind willreturn }
+; CGSCC: attributes #[[ATTR3]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/return-constants.ll b/llvm/test/Transforms/Attributor/IPConstantProp/return-constants.ll
index 5bde8ff8bc66e..4327e6d0e9f42 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/return-constants.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/return-constants.ll
@@ -7,7 +7,7 @@
 %0 = type { i32, i32 }
 
 define internal %0 @foo(i1 %Q) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@foo
 ; CHECK-SAME: (i1 [[Q:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    br i1 [[Q]], label [[T:%.*]], label [[F:%.*]]
@@ -34,7 +34,7 @@ F:                                                ; preds = %0
 }
 
 define internal %0 @bar(i1 %Q) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@bar
 ; CHECK-SAME: (i1 [[Q:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[A:%.*]] = insertvalue [[TMP0:%.*]] undef, i32 21, 0
@@ -59,13 +59,13 @@ F:                                                ; preds = %0
 }
 
 define %0 @caller(i1 %Q) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@caller
 ; TUNIT-SAME: (i1 [[Q:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    [[X:%.*]] = call [[TMP0:%.*]] @foo(i1 [[Q]]) #[[ATTR1:[0-9]+]]
 ; TUNIT-NEXT:    ret [[TMP0]] [[X]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@caller
 ; CGSCC-SAME: (i1 [[Q:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:    [[X:%.*]] = call [[TMP0:%.*]] @foo(i1 [[Q]]) #[[ATTR2:[0-9]+]]
@@ -84,7 +84,7 @@ define %0 @caller(i1 %Q) {
 
 ; Similar to @caller but the result of both calls are actually used.
 define i32 @caller2(i1 %Q) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@caller2
 ; TUNIT-SAME: (i1 [[Q:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    [[X:%.*]] = call [[TMP0:%.*]] @foo(i1 [[Q]]) #[[ATTR1]]
@@ -98,7 +98,7 @@ define i32 @caller2(i1 %Q) {
 ; TUNIT-NEXT:    [[R:%.*]] = add i32 [[N]], [[M]]
 ; TUNIT-NEXT:    ret i32 [[R]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@caller2
 ; CGSCC-SAME: (i1 [[Q:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:    [[X:%.*]] = call [[TMP0:%.*]] @foo(i1 [[Q]]) #[[ATTR2]]
@@ -125,10 +125,10 @@ define i32 @caller2(i1 %Q) {
   ret i32 %R
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/solve-after-each-resolving-undefs-for-function.ll b/llvm/test/Transforms/Attributor/IPConstantProp/solve-after-each-resolving-undefs-for-function.ll
index 343c4c8f7a737..6921904488dd7 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/solve-after-each-resolving-undefs-for-function.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/solve-after-each-resolving-undefs-for-function.ll
@@ -3,7 +3,7 @@
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,CGSCC
 
 define internal i32 @testf(i1 %c) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@testf
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -29,7 +29,7 @@ if.end:                                          ; preds = %if.then1, %entry
 }
 
 define internal i32 @test1(i1 %c) {
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@test1
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -59,12 +59,12 @@ ret2:                                           ; preds = %if.then, %entry
 }
 
 define i32 @main(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@main
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR0:[0-9]+]] {
 ; TUNIT-NEXT:    ret i32 99
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@main
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:    [[RES:%.*]] = call noundef i32 @test1(i1 [[C]]) #[[ATTR2]]
@@ -74,9 +74,9 @@ define i32 @main(i1 %c) {
   ret i32 %res
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/thread_local_acs.ll b/llvm/test/Transforms/Attributor/IPConstantProp/thread_local_acs.ll
index 6c10fe2d77228..f7d145d49ae5e 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/thread_local_acs.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/thread_local_acs.ll
@@ -26,7 +26,7 @@ target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 ; CHECK: @[[GSH:[a-zA-Z0-9_$"\\.-]+]] = dso_local global i32 0, align 4
 ;.
 define internal i32 @callee(i32* %thread_local_ptr, i32* %shared_ptr) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(read)
 ; CHECK-LABEL: define {{[^@]+}}@callee
 ; CHECK-SAME: (i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) [[THREAD_LOCAL_PTR:%.*]], i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) [[SHARED_PTR:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -63,7 +63,7 @@ declare !callback !0 dso_local void @broker(i32*, i32 (i32*, i32*)*, i32*)
 !1 = !{i64 1, i64 0, i64 2, i1 false}
 !0 = !{!1}
 ;.
-; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readonly willreturn }
+; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(read) }
 ;.
 ; CHECK: [[META0:![0-9]+]] = !{!1}
 ; CHECK: [[META1:![0-9]+]] = !{i64 1, i64 0, i64 2, i1 false}

diff  --git a/llvm/test/Transforms/Attributor/align.ll b/llvm/test/Transforms/Attributor/align.ll
index 3c86c78e4f3d4..5ffa951ab4766 100644
--- a/llvm/test/Transforms/Attributor/align.ll
+++ b/llvm/test/Transforms/Attributor/align.ll
@@ -17,7 +17,7 @@ target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 ; CHECK: @[[G:[a-zA-Z0-9_$"\\.-]+]] = global i8 0, align 32
 ;.
 define i32* @test1(i32* align 8 %0) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@test1
 ; CHECK-SAME: (i32* nofree readnone returned align 8 "no-capture-maybe-returned" [[TMP0:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    ret i32* [[TMP0]]
@@ -27,7 +27,7 @@ define i32* @test1(i32* align 8 %0) #0 {
 
 ; TEST 2
 define i32* @test2(i32* %0) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@test2
 ; CHECK-SAME: (i32* nofree readnone returned "no-capture-maybe-returned" [[TMP0:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    ret i32* [[TMP0]]
@@ -37,7 +37,7 @@ define i32* @test2(i32* %0) #0 {
 
 ; TEST 3
 define i32* @test3(i32* align 8 %0, i32* align 4 %1, i1 %2) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@test3
 ; CHECK-SAME: (i32* nofree readnone align 8 "no-capture-maybe-returned" [[TMP0:%.*]], i32* nofree readnone align 4 "no-capture-maybe-returned" [[TMP1:%.*]], i1 [[TMP2:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[RET:%.*]] = select i1 [[TMP2]], i32* [[TMP0]], i32* [[TMP1]]
@@ -49,7 +49,7 @@ define i32* @test3(i32* align 8 %0, i32* align 4 %1, i1 %2) #0 {
 
 ; TEST 4
 define i32* @test4(i32* align 32 %0, i32* align 32 %1, i1 %2) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@test4
 ; CHECK-SAME: (i32* nofree readnone align 32 "no-capture-maybe-returned" [[TMP0:%.*]], i32* nofree readnone align 32 "no-capture-maybe-returned" [[TMP1:%.*]], i1 [[TMP2:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[RET:%.*]] = select i1 [[TMP2]], i32* [[TMP0]], i32* [[TMP1]]
@@ -85,12 +85,12 @@ define i32* @test5_2() {
 ; TEST 6
 ; SCC
 define i32* @test6_1() #0 {
-; TUNIT: Function Attrs: nofree noinline nosync nounwind readnone willreturn uwtable
+; TUNIT: Function Attrs: nofree noinline nosync nounwind willreturn memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@test6_1
 ; TUNIT-SAME: () #[[ATTR1:[0-9]+]] {
 ; TUNIT-NEXT:    ret i32* undef
 ;
-; CGSCC: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CGSCC: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@test6_1
 ; CGSCC-SAME: () #[[ATTR0]] {
 ; CGSCC-NEXT:    ret i32* undef
@@ -100,12 +100,12 @@ define i32* @test6_1() #0 {
 }
 
 define i32* @test6_2() #0 {
-; TUNIT: Function Attrs: nofree noinline nosync nounwind readnone willreturn uwtable
+; TUNIT: Function Attrs: nofree noinline nosync nounwind willreturn memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@test6_2
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i32* undef
 ;
-; CGSCC: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CGSCC: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@test6_2
 ; CGSCC-SAME: () #[[ATTR0]] {
 ; CGSCC-NEXT:    ret i32* undef
@@ -134,7 +134,7 @@ define i32* @test6_2() #0 {
 
 ; Function Attrs: nounwind readnone ssp uwtable
 define internal i8* @f1(i8* readnone %0) local_unnamed_addr #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@f1
 ; CHECK-SAME: (i8* noalias nofree nonnull readnone align 8 dereferenceable(1) "no-capture-maybe-returned" [[TMP0:%.*]]) local_unnamed_addr #[[ATTR0]] {
 ; CHECK-NEXT:    br label [[TMP3:%.*]]
@@ -192,7 +192,7 @@ define internal i8* @f2(i8* readnone %0) local_unnamed_addr #0 {
 
 ; Function Attrs: nounwind readnone ssp uwtable
 define internal i8* @f3(i8* readnone %0) local_unnamed_addr #0 {
-; CGSCC: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CGSCC: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@f3
 ; CGSCC-SAME: () local_unnamed_addr #[[ATTR0]] {
 ; CGSCC-NEXT:    br label [[TMP2:%.*]]
@@ -216,13 +216,13 @@ define internal i8* @f3(i8* readnone %0) local_unnamed_addr #0 {
 ; TEST 7
 ; Better than IR information
 define align 4 i8* @test7() #0 {
-; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@test7
 ; TUNIT-SAME: () #[[ATTR0]] {
-; TUNIT-NEXT:    [[C:%.*]] = tail call i8* @f1(i8* noalias nofree noundef nonnull readnone align 8 dereferenceable(1) "no-capture-maybe-returned" @a1) #[[ATTR9:[0-9]+]]
+; TUNIT-NEXT:    [[C:%.*]] = tail call i8* @f1(i8* noalias nofree noundef nonnull readnone align 8 dereferenceable(1) "no-capture-maybe-returned" @a1) #[[ATTR11:[0-9]+]]
 ; TUNIT-NEXT:    ret i8* [[C]]
 ;
-; CGSCC: Function Attrs: nofree noinline nosync nounwind readnone willreturn uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind willreturn memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@test7
 ; CGSCC-SAME: () #[[ATTR2:[0-9]+]] {
 ; CGSCC-NEXT:    [[C:%.*]] = tail call noundef nonnull align 8 dereferenceable(1) i8* @f1(i8* noalias nofree noundef nonnull readnone align 8 dereferenceable(1) @a1) #[[ATTR13:[0-9]+]]
@@ -235,7 +235,7 @@ define align 4 i8* @test7() #0 {
 ; TEST 7b
 ; Function Attrs: nounwind readnone ssp uwtable
 define internal i8* @f1b(i8* readnone %0) local_unnamed_addr #0 {
-; CGSCC: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CGSCC: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@f1b
 ; CGSCC-SAME: (i8* noalias nofree nonnull readnone align 8 dereferenceable(1) "no-capture-maybe-returned" [[TMP0:%.*]]) local_unnamed_addr #[[ATTR0]] {
 ; CGSCC-NEXT:    br label [[TMP3:%.*]]
@@ -296,7 +296,7 @@ define internal i8* @f2b(i8* readnone %0) local_unnamed_addr #0 {
 ; Function Attrs: nounwind readnone ssp uwtable
 define internal i8* @f3b(i8* readnone %0) local_unnamed_addr #0 {
 ;
-; CGSCC: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CGSCC: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@f3b
 ; CGSCC-SAME: () local_unnamed_addr #[[ATTR0]] {
 ; CGSCC-NEXT:    br label [[TMP2:%.*]]
@@ -318,12 +318,12 @@ define internal i8* @f3b(i8* readnone %0) local_unnamed_addr #0 {
 }
 
 define align 4 i32* @test7b(i32* align 32 %p) #0 {
-; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@test7b
 ; TUNIT-SAME: (i32* nofree readnone returned align 32 "no-capture-maybe-returned" [[P:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    ret i32* [[P]]
 ;
-; CGSCC: Function Attrs: nofree noinline nosync nounwind readnone willreturn uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind willreturn memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@test7b
 ; CGSCC-SAME: (i32* nofree readnone returned align 32 "no-capture-maybe-returned" [[P:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    ret i32* [[P]]
@@ -525,14 +525,14 @@ e:
 
 
 define i64 @test11(i32* %p) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; TUNIT-LABEL: define {{[^@]+}}@test11
 ; TUNIT-SAME: (i32* nocapture nofree nonnull readonly align 8 dereferenceable(8) [[P:%.*]]) #[[ATTR4:[0-9]+]] {
 ; TUNIT-NEXT:    [[P_CAST:%.*]] = bitcast i32* [[P]] to i64*
 ; TUNIT-NEXT:    [[RET:%.*]] = load i64, i64* [[P_CAST]], align 8
 ; TUNIT-NEXT:    ret i64 [[RET]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@test11
 ; CGSCC-SAME: (i32* nocapture nofree nonnull readonly align 8 dereferenceable(8) [[P:%.*]]) #[[ATTR5:[0-9]+]] {
 ; CGSCC-NEXT:    [[P_CAST:%.*]] = bitcast i32* [[P]] to i64*
@@ -549,7 +549,7 @@ define i64 @test11(i32* %p) {
 
 ; FXIME: %p should have nonnull
 define i64 @test12-1(i32* align 4 %p) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; TUNIT-LABEL: define {{[^@]+}}@test12-1
 ; TUNIT-SAME: (i32* nocapture nofree readonly align 16 [[P:%.*]]) #[[ATTR4]] {
 ; TUNIT-NEXT:    [[P_CAST:%.*]] = bitcast i32* [[P]] to i64*
@@ -558,7 +558,7 @@ define i64 @test12-1(i32* align 4 %p) {
 ; TUNIT-NEXT:    [[RET:%.*]] = load i64, i64* [[ARRAYIDX1]], align 16
 ; TUNIT-NEXT:    ret i64 [[RET]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@test12-1
 ; CGSCC-SAME: (i32* nocapture nofree readonly align 16 [[P:%.*]]) #[[ATTR5]] {
 ; CGSCC-NEXT:    [[P_CAST:%.*]] = bitcast i32* [[P]] to i64*
@@ -575,7 +575,7 @@ define i64 @test12-1(i32* align 4 %p) {
 }
 
 define i64 @test12-2(i32* align 4 %p) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; TUNIT-LABEL: define {{[^@]+}}@test12-2
 ; TUNIT-SAME: (i32* nocapture nofree nonnull readonly align 16 dereferenceable(8) [[P:%.*]]) #[[ATTR4]] {
 ; TUNIT-NEXT:    [[P_CAST:%.*]] = bitcast i32* [[P]] to i64*
@@ -583,7 +583,7 @@ define i64 @test12-2(i32* align 4 %p) {
 ; TUNIT-NEXT:    [[RET:%.*]] = load i64, i64* [[ARRAYIDX0]], align 16
 ; TUNIT-NEXT:    ret i64 [[RET]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@test12-2
 ; CGSCC-SAME: (i32* nocapture nofree nonnull readonly align 16 dereferenceable(8) [[P:%.*]]) #[[ATTR5]] {
 ; CGSCC-NEXT:    [[P_CAST:%.*]] = bitcast i32* [[P]] to i64*
@@ -599,7 +599,7 @@ define i64 @test12-2(i32* align 4 %p) {
 
 ; FXIME: %p should have nonnull
 define void @test12-3(i32* align 4 %p) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@test12-3
 ; TUNIT-SAME: (i32* nocapture nofree writeonly align 16 [[P:%.*]]) #[[ATTR5:[0-9]+]] {
 ; TUNIT-NEXT:    [[P_CAST:%.*]] = bitcast i32* [[P]] to i64*
@@ -608,7 +608,7 @@ define void @test12-3(i32* align 4 %p) {
 ; TUNIT-NEXT:    store i64 0, i64* [[ARRAYIDX1]], align 16
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@test12-3
 ; CGSCC-SAME: (i32* nocapture nofree writeonly align 16 [[P:%.*]]) #[[ATTR6:[0-9]+]] {
 ; CGSCC-NEXT:    [[P_CAST:%.*]] = bitcast i32* [[P]] to i64*
@@ -625,7 +625,7 @@ define void @test12-3(i32* align 4 %p) {
 }
 
 define void @test12-4(i32* align 4 %p) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@test12-4
 ; TUNIT-SAME: (i32* nocapture nofree nonnull writeonly align 16 dereferenceable(8) [[P:%.*]]) #[[ATTR5]] {
 ; TUNIT-NEXT:    [[P_CAST:%.*]] = bitcast i32* [[P]] to i64*
@@ -633,7 +633,7 @@ define void @test12-4(i32* align 4 %p) {
 ; TUNIT-NEXT:    store i64 0, i64* [[ARRAYIDX0]], align 16
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@test12-4
 ; CGSCC-SAME: (i32* nocapture nofree nonnull writeonly align 16 dereferenceable(8) [[P:%.*]]) #[[ATTR6]] {
 ; CGSCC-NEXT:    [[P_CAST:%.*]] = bitcast i32* [[P]] to i64*
@@ -699,7 +699,7 @@ define void @test12-6(i32* align 4 %p) {
 }
 
 define void @test13(i1 %c, i32* align 32 %dst) #0 {
-; TUNIT: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind willreturn writeonly uwtable
+; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(argmem: write) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@test13
 ; TUNIT-SAME: (i1 [[C:%.*]], i32* nocapture nofree writeonly align 32 [[DST:%.*]]) #[[ATTR7:[0-9]+]] {
 ; TUNIT-NEXT:    br i1 [[C]], label [[TRUEBB:%.*]], label [[FALSEBB:%.*]]
@@ -712,7 +712,7 @@ define void @test13(i1 %c, i32* align 32 %dst) #0 {
 ; TUNIT-NEXT:    store i32 0, i32* [[PTR]], align 32
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind willreturn writeonly uwtable
+; CGSCC: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(argmem: write) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@test13
 ; CGSCC-SAME: (i1 [[C:%.*]], i32* nocapture nofree writeonly align 32 [[DST:%.*]]) #[[ATTR8:[0-9]+]] {
 ; CGSCC-NEXT:    br i1 [[C]], label [[TRUEBB:%.*]], label [[FALSEBB:%.*]]
@@ -737,7 +737,7 @@ end:
 }
 
 define void @test13-1(i1 %c, i32* align 32 %dst) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@test13-1
 ; TUNIT-SAME: (i1 [[C:%.*]], i32* nocapture nofree writeonly align 32 [[DST:%.*]]) #[[ATTR8:[0-9]+]] {
 ; TUNIT-NEXT:    br i1 [[C]], label [[TRUEBB:%.*]], label [[FALSEBB:%.*]]
@@ -750,7 +750,7 @@ define void @test13-1(i1 %c, i32* align 32 %dst) {
 ; TUNIT-NEXT:    store i32 0, i32* [[PTR]], align 16
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@test13-1
 ; CGSCC-SAME: (i1 [[C:%.*]], i32* nocapture nofree writeonly align 32 [[DST:%.*]]) #[[ATTR9:[0-9]+]] {
 ; CGSCC-NEXT:    br i1 [[C]], label [[TRUEBB:%.*]], label [[FALSEBB:%.*]]
@@ -775,7 +775,7 @@ end:
 }
 
 define void @test13-2(i1 %c, i32* align 32 %dst) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@test13-2
 ; TUNIT-SAME: (i1 [[C:%.*]], i32* nocapture nofree writeonly align 32 [[DST:%.*]]) #[[ATTR8]] {
 ; TUNIT-NEXT:    br i1 [[C]], label [[TRUEBB:%.*]], label [[FALSEBB:%.*]]
@@ -788,7 +788,7 @@ define void @test13-2(i1 %c, i32* align 32 %dst) {
 ; TUNIT-NEXT:    store i32 0, i32* [[PTR]], align 32
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@test13-2
 ; CGSCC-SAME: (i1 [[C:%.*]], i32* nocapture nofree writeonly align 32 [[DST:%.*]]) #[[ATTR9]] {
 ; CGSCC-NEXT:    br i1 [[C]], label [[TRUEBB:%.*]], label [[FALSEBB:%.*]]
@@ -813,7 +813,7 @@ end:
 }
 
 define void @test13-3(i1 %c, i32* align 32 %dst) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@test13-3
 ; TUNIT-SAME: (i1 [[C:%.*]], i32* nocapture nofree writeonly align 32 [[DST:%.*]]) #[[ATTR8]] {
 ; TUNIT-NEXT:    br i1 [[C]], label [[TRUEBB:%.*]], label [[FALSEBB:%.*]]
@@ -826,7 +826,7 @@ define void @test13-3(i1 %c, i32* align 32 %dst) {
 ; TUNIT-NEXT:    store i32 0, i32* [[PTR]], align 32
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@test13-3
 ; CGSCC-SAME: (i1 [[C:%.*]], i32* nocapture nofree writeonly align 32 [[DST:%.*]]) #[[ATTR9]] {
 ; CGSCC-NEXT:    br i1 [[C]], label [[TRUEBB:%.*]], label [[FALSEBB:%.*]]
@@ -852,13 +852,13 @@ end:
 
 ; Don't crash on ptr2int/int2ptr uses.
 define i64 @ptr2int(i32* %p) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@ptr2int
-; TUNIT-SAME: (i32* nofree readnone [[P:%.*]]) #[[ATTR9]] {
+; TUNIT-SAME: (i32* nofree readnone [[P:%.*]]) #[[ATTR9:[0-9]+]] {
 ; TUNIT-NEXT:    [[P2I:%.*]] = ptrtoint i32* [[P]] to i64
 ; TUNIT-NEXT:    ret i64 [[P2I]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@ptr2int
 ; CGSCC-SAME: (i32* nofree readnone [[P:%.*]]) #[[ATTR10:[0-9]+]] {
 ; CGSCC-NEXT:    [[P2I:%.*]] = ptrtoint i32* [[P]] to i64
@@ -868,13 +868,13 @@ define i64 @ptr2int(i32* %p) {
   ret i64 %p2i
 }
 define i64* @int2ptr(i64 %i) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@int2ptr
 ; TUNIT-SAME: (i64 [[I:%.*]]) #[[ATTR9]] {
 ; TUNIT-NEXT:    [[I2P:%.*]] = inttoptr i64 [[I]] to i64*
 ; TUNIT-NEXT:    ret i64* [[I2P]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@int2ptr
 ; CGSCC-SAME: (i64 [[I:%.*]]) #[[ATTR10]] {
 ; CGSCC-NEXT:    [[I2P:%.*]] = inttoptr i64 [[I]] to i64*
@@ -886,13 +886,13 @@ define i64* @int2ptr(i64 %i) {
 
 ; Use the store alignment only for the pointer operand.
 define void @aligned_store(i8* %Value, i8** %Ptr) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@aligned_store
 ; TUNIT-SAME: (i8* nofree writeonly [[VALUE:%.*]], i8** nocapture nofree noundef nonnull writeonly align 32 dereferenceable(8) [[PTR:%.*]]) #[[ATTR5]] {
 ; TUNIT-NEXT:    store i8* [[VALUE]], i8** [[PTR]], align 32
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@aligned_store
 ; CGSCC-SAME: (i8* nofree writeonly [[VALUE:%.*]], i8** nocapture nofree noundef nonnull writeonly align 32 dereferenceable(8) [[PTR:%.*]]) #[[ATTR6]] {
 ; CGSCC-NEXT:    store i8* [[VALUE]], i8** [[PTR]], align 32
@@ -916,14 +916,14 @@ define void @align_call_op_not_store(i8* align 2048 %arg) {
 }
 define void @align_store_after_bc(i32* align 2048 %arg) {
 ;
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@align_store_after_bc
 ; TUNIT-SAME: (i32* nocapture nofree nonnull writeonly align 2048 dereferenceable(1) [[ARG:%.*]]) #[[ATTR5]] {
 ; TUNIT-NEXT:    [[BC:%.*]] = bitcast i32* [[ARG]] to i8*
 ; TUNIT-NEXT:    store i8 0, i8* [[BC]], align 2048
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@align_store_after_bc
 ; CGSCC-SAME: (i32* nocapture nofree nonnull writeonly align 2048 dereferenceable(1) [[ARG:%.*]]) #[[ATTR6]] {
 ; CGSCC-NEXT:    [[BC:%.*]] = bitcast i32* [[ARG]] to i8*
@@ -939,13 +939,13 @@ define void @align_store_after_bc(i32* align 2048 %arg) {
 ; we cannot also put on the caller.
 @cnd = external global i1
 define i32 @musttail_callee_1(i32* %p) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; TUNIT-LABEL: define {{[^@]+}}@musttail_callee_1
 ; TUNIT-SAME: (i32* nocapture nofree noundef nonnull readonly dereferenceable(4) [[P:%.*]]) #[[ATTR4]] {
 ; TUNIT-NEXT:    [[V:%.*]] = load i32, i32* [[P]], align 32
 ; TUNIT-NEXT:    ret i32 [[V]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@musttail_callee_1
 ; CGSCC-SAME: (i32* nocapture nofree noundef nonnull readonly dereferenceable(4) [[P:%.*]]) #[[ATTR5]] {
 ; CGSCC-NEXT:    [[V:%.*]] = load i32, i32* [[P]], align 32
@@ -955,24 +955,24 @@ define i32 @musttail_callee_1(i32* %p) {
   ret i32 %v
 }
 define i32 @musttail_caller_1(i32* %p) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(read)
 ; TUNIT-LABEL: define {{[^@]+}}@musttail_caller_1
 ; TUNIT-SAME: (i32* nocapture nofree readonly [[P:%.*]]) #[[ATTR10:[0-9]+]] {
 ; TUNIT-NEXT:    [[C:%.*]] = load i1, i1* @cnd, align 1
 ; TUNIT-NEXT:    br i1 [[C]], label [[MT:%.*]], label [[EXIT:%.*]]
 ; TUNIT:       mt:
-; TUNIT-NEXT:    [[V:%.*]] = musttail call i32 @musttail_callee_1(i32* nocapture nofree readonly [[P]]) #[[ATTR11:[0-9]+]]
+; TUNIT-NEXT:    [[V:%.*]] = musttail call i32 @musttail_callee_1(i32* nocapture nofree readonly [[P]]) #[[ATTR12:[0-9]+]]
 ; TUNIT-NEXT:    ret i32 [[V]]
 ; TUNIT:       exit:
 ; TUNIT-NEXT:    ret i32 0
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(read)
 ; CGSCC-LABEL: define {{[^@]+}}@musttail_caller_1
 ; CGSCC-SAME: (i32* nocapture nofree readonly [[P:%.*]]) #[[ATTR11:[0-9]+]] {
 ; CGSCC-NEXT:    [[C:%.*]] = load i1, i1* @cnd, align 1
 ; CGSCC-NEXT:    br i1 [[C]], label [[MT:%.*]], label [[EXIT:%.*]]
 ; CGSCC:       mt:
-; CGSCC-NEXT:    [[V:%.*]] = musttail call i32 @musttail_callee_1(i32* nocapture nofree noundef nonnull readonly dereferenceable(4) [[P]]) #[[ATTR14:[0-9]+]]
+; CGSCC-NEXT:    [[V:%.*]] = musttail call i32 @musttail_callee_1(i32* nocapture nofree noundef nonnull readonly dereferenceable(4) [[P]]) #[[ATTR13]]
 ; CGSCC-NEXT:    ret i32 [[V]]
 ; CGSCC:       exit:
 ; CGSCC-NEXT:    ret i32 0
@@ -1051,7 +1051,7 @@ declare void @align4_callee(i8* align(4) %p)
 @G = global i8 0, align 32
 
 define internal i8* @aligned_8_return(i8* %a, i1 %c1, i1 %c2) norecurse {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@aligned_8_return
 ; TUNIT-SAME: (i8* noalias nofree readnone align 16 "no-capture-maybe-returned" [[A:%.*]], i1 [[C1:%.*]], i1 [[C2:%.*]]) #[[ATTR9]] {
 ; TUNIT-NEXT:    [[STACK:%.*]] = alloca i8*, align 8
@@ -1068,7 +1068,7 @@ define internal i8* @aligned_8_return(i8* %a, i1 %c1, i1 %c2) norecurse {
 ; TUNIT-NEXT:    [[L:%.*]] = load i8*, i8** [[STACK]], align 8
 ; TUNIT-NEXT:    ret i8* [[L]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@aligned_8_return
 ; CGSCC-SAME: (i8* noalias nofree readnone align 16 "no-capture-maybe-returned" [[A:%.*]], i1 [[C1:%.*]], i1 [[C2:%.*]]) #[[ATTR10]] {
 ; CGSCC-NEXT:    [[STACK:%.*]] = alloca i8*, align 8
@@ -1101,13 +1101,13 @@ end:
 }
 
 define i8* @aligned_8_return_caller(i8* align(16) %a, i1 %c1, i1 %c2) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@aligned_8_return_caller
 ; TUNIT-SAME: (i8* nofree readnone align 16 "no-capture-maybe-returned" [[A:%.*]], i1 [[C1:%.*]], i1 [[C2:%.*]]) #[[ATTR9]] {
-; TUNIT-NEXT:    [[R:%.*]] = call align 8 i8* @aligned_8_return(i8* noalias nofree readnone align 16 "no-capture-maybe-returned" [[A]], i1 [[C1]], i1 [[C2]]) #[[ATTR12:[0-9]+]]
+; TUNIT-NEXT:    [[R:%.*]] = call align 8 i8* @aligned_8_return(i8* noalias nofree readnone align 16 "no-capture-maybe-returned" [[A]], i1 [[C1]], i1 [[C2]]) #[[ATTR12]]
 ; TUNIT-NEXT:    ret i8* [[R]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@aligned_8_return_caller
 ; CGSCC-SAME: (i8* nofree readnone align 16 [[A:%.*]], i1 [[C1:%.*]], i1 [[C2:%.*]]) #[[ATTR12:[0-9]+]] {
 ; CGSCC-NEXT:    [[R:%.*]] = call align 8 i8* @aligned_8_return(i8* noalias nofree readnone align 16 [[A]], i1 [[C1]], i1 [[C2]]) #[[ATTR13]]
@@ -1121,33 +1121,32 @@ attributes #0 = { nounwind uwtable noinline }
 attributes #1 = { uwtable noinline }
 attributes #2 = { null_pointer_is_valid }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind readnone willreturn uwtable }
-; TUNIT: attributes #[[ATTR1]] = { nofree noinline nosync nounwind readnone willreturn uwtable }
+; TUNIT: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable }
+; TUNIT: attributes #[[ATTR1]] = { nofree noinline nosync nounwind willreturn memory(none) uwtable }
 ; TUNIT: attributes #[[ATTR2]] = { nounwind }
 ; TUNIT: attributes #[[ATTR3]] = { nofree nosync nounwind }
-; TUNIT: attributes #[[ATTR4]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; TUNIT: attributes #[[ATTR5]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
+; TUNIT: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; TUNIT: attributes #[[ATTR5]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
 ; TUNIT: attributes #[[ATTR6]] = { nounwind willreturn }
-; TUNIT: attributes #[[ATTR7]] = { argmemonly nofree noinline norecurse nosync nounwind willreturn writeonly uwtable }
-; TUNIT: attributes #[[ATTR8]] = { nofree norecurse nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR9]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR10]] = { nofree norecurse nosync nounwind readonly willreturn }
-; TUNIT: attributes #[[ATTR11]] = { nofree nosync nounwind readonly willreturn }
-; TUNIT: attributes #[[ATTR12]] = { nofree nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR7]] = { nofree noinline norecurse nosync nounwind willreturn memory(argmem: write) uwtable }
+; TUNIT: attributes #[[ATTR8]] = { nofree norecurse nosync nounwind willreturn memory(write) }
+; TUNIT: attributes #[[ATTR9]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR10]] = { nofree norecurse nosync nounwind willreturn memory(read) }
+; TUNIT: attributes #[[ATTR11]] = { nofree norecurse nosync nounwind willreturn }
+; TUNIT: attributes #[[ATTR12]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind readnone willreturn uwtable }
+; CGSCC: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable }
 ; CGSCC: attributes #[[ATTR1]] = { noinline nounwind uwtable }
-; CGSCC: attributes #[[ATTR2]] = { nofree noinline nosync nounwind readnone willreturn uwtable }
+; CGSCC: attributes #[[ATTR2]] = { nofree noinline nosync nounwind willreturn memory(none) uwtable }
 ; CGSCC: attributes #[[ATTR3]] = { nounwind }
 ; CGSCC: attributes #[[ATTR4]] = { nofree nosync nounwind }
-; CGSCC: attributes #[[ATTR5]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR6]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
+; CGSCC: attributes #[[ATTR5]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; CGSCC: attributes #[[ATTR6]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
 ; CGSCC: attributes #[[ATTR7]] = { nounwind willreturn }
-; CGSCC: attributes #[[ATTR8]] = { argmemonly nofree noinline norecurse nosync nounwind willreturn writeonly uwtable }
-; CGSCC: attributes #[[ATTR9]] = { nofree norecurse nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR10]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR11]] = { nofree nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR12]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR13]] = { readnone willreturn }
-; CGSCC: attributes #[[ATTR14]] = { readonly willreturn }
+; CGSCC: attributes #[[ATTR8]] = { nofree noinline norecurse nosync nounwind willreturn memory(argmem: write) uwtable }
+; CGSCC: attributes #[[ATTR9]] = { nofree norecurse nosync nounwind willreturn memory(write) }
+; CGSCC: attributes #[[ATTR10]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR11]] = { nofree nosync nounwind willreturn memory(read) }
+; CGSCC: attributes #[[ATTR12]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR13]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/allow_list.ll b/llvm/test/Transforms/Attributor/allow_list.ll
index 65650d174e3c1..31cb6bbc66281 100644
--- a/llvm/test/Transforms/Attributor/allow_list.ll
+++ b/llvm/test/Transforms/Attributor/allow_list.ll
@@ -35,7 +35,7 @@ define internal i32 @range_test(i32 %a) #0 {
 ; CHECK_DISABLED_FUNCTION-NEXT:    [[TMP2:%.*]] = zext i1 [[TMP1]] to i32
 ; CHECK_DISABLED_FUNCTION-NEXT:    ret i32 [[TMP2]]
 ;
-; CHECK_ENABLED_FUNCTION: Function Attrs: noinline nounwind readnone uwtable
+; CHECK_ENABLED_FUNCTION: Function Attrs: noinline nounwind memory(none) uwtable
 ; CHECK_ENABLED_FUNCTION-LABEL: define {{[^@]+}}@range_test
 ; CHECK_ENABLED_FUNCTION-SAME: () #[[ATTR0:[0-9]+]] {
 ; CHECK_ENABLED_FUNCTION-NEXT:    ret i32 1
@@ -65,7 +65,7 @@ define i32 @range_use1() #0 {
 ; CHECK_DISABLED_FUNCTION-NEXT:    [[TMP1:%.*]] = call i32 @range_test(i32 123)
 ; CHECK_DISABLED_FUNCTION-NEXT:    ret i32 [[TMP1]]
 ;
-; CHECK_ENABLED_FUNCTION: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK_ENABLED_FUNCTION: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK_ENABLED_FUNCTION-LABEL: define {{[^@]+}}@range_use1
 ; CHECK_ENABLED_FUNCTION-SAME: () #[[ATTR1:[0-9]+]] {
 ; CHECK_ENABLED_FUNCTION-NEXT:    ret i32 1
@@ -112,7 +112,7 @@ attributes #0 = { nounwind uwtable noinline }
 ;.
 ; CHECK_DISABLED_FUNCTION: attributes #[[ATTR0]] = { noinline nounwind uwtable }
 ;.
-; CHECK_ENABLED_FUNCTION: attributes #[[ATTR0]] = { noinline nounwind readnone uwtable }
-; CHECK_ENABLED_FUNCTION: attributes #[[ATTR1]] = { nofree noinline norecurse nosync nounwind readnone willreturn uwtable }
+; CHECK_ENABLED_FUNCTION: attributes #[[ATTR0]] = { noinline nounwind memory(none) uwtable }
+; CHECK_ENABLED_FUNCTION: attributes #[[ATTR1]] = { nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable }
 ; CHECK_ENABLED_FUNCTION: attributes #[[ATTR2]] = { noinline nounwind uwtable }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/alwaysinline.ll b/llvm/test/Transforms/Attributor/alwaysinline.ll
index 72847475b68d2..e1602a38a9f6f 100644
--- a/llvm/test/Transforms/Attributor/alwaysinline.ll
+++ b/llvm/test/Transforms/Attributor/alwaysinline.ll
@@ -8,7 +8,7 @@
 ; the function is not exactly defined, and marked alwaysinline and can be inlined,
 ; so the function can be analyzed
 define linkonce void @inner1() alwaysinline {
-; CHECK: Function Attrs: alwaysinline nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: alwaysinline nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@inner1
 ; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -19,13 +19,13 @@ entry:
 }
 
 define void @outer1() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@outer1
 ; TUNIT-SAME: () #[[ATTR1:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@outer1
 ; CGSCC-SAME: () #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -122,12 +122,12 @@ define i32 @outer3(i32 %x) {
   ret i32 %call
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { alwaysinline nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { alwaysinline nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ; TUNIT: attributes #[[ATTR2]] = { norecurse }
 ; TUNIT: attributes #[[ATTR3]] = { alwaysinline }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { alwaysinline nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { alwaysinline nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(none) }
 ; CGSCC: attributes #[[ATTR2]] = { alwaysinline }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/call-simplify-pointer-info.ll b/llvm/test/Transforms/Attributor/call-simplify-pointer-info.ll
index e75489a03ceac..2119961d37a12 100644
--- a/llvm/test/Transforms/Attributor/call-simplify-pointer-info.ll
+++ b/llvm/test/Transforms/Attributor/call-simplify-pointer-info.ll
@@ -4,7 +4,7 @@
 ;
 
 define internal i8 @read_arg(i8* %p) {
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@read_arg
 ; CGSCC-SAME: (i8* nocapture nofree noundef nonnull readonly dereferenceable(1022) [[P:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -17,14 +17,14 @@ entry:
 }
 
 define internal i8 @read_arg_index(i8* %p, i64 %index) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; TUNIT-LABEL: define {{[^@]+}}@read_arg_index
 ; TUNIT-SAME: (i8* nocapture nofree noundef nonnull readonly align 2 dereferenceable(1022) [[P:%.*]]) #[[ATTR0:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    [[L:%.*]] = load i8, i8* [[P]], align 2
 ; TUNIT-NEXT:    ret i8 [[L]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@read_arg_index
 ; CGSCC-SAME: (i8* nocapture nofree noundef nonnull readonly dereferenceable(1022) [[P:%.*]]) #[[ATTR0]] {
 ; CGSCC-NEXT:  entry:
@@ -38,7 +38,7 @@ entry:
 }
 
 define i8 @call_simplifiable_1() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@call_simplifiable_1
 ; TUNIT-SAME: () #[[ATTR1:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
@@ -46,7 +46,7 @@ define i8 @call_simplifiable_1() {
 ; TUNIT-NEXT:    [[I0:%.*]] = getelementptr inbounds [1024 x i8], [1024 x i8]* [[BYTES]], i64 0, i64 2
 ; TUNIT-NEXT:    ret i8 2
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@call_simplifiable_1
 ; CGSCC-SAME: () #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -65,7 +65,7 @@ entry:
 }
 
 define i8 @call_not_simplifiable_1() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@call_not_simplifiable_1
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
@@ -75,7 +75,7 @@ define i8 @call_not_simplifiable_1() {
 ; TUNIT-NEXT:    [[R:%.*]] = call i8 @read_arg_index(i8* nocapture nofree noundef nonnull readonly align 2 dereferenceable(1022) [[I0]]) #[[ATTR2:[0-9]+]]
 ; TUNIT-NEXT:    ret i8 [[R]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@call_not_simplifiable_1
 ; CGSCC-SAME: () #[[ATTR1]] {
 ; CGSCC-NEXT:  entry:
@@ -94,11 +94,11 @@ entry:
 }
 
 ;.
-; TUNIT: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR2]] = { nofree nosync nounwind readonly willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { readonly willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/cb_liveness_disabled.ll b/llvm/test/Transforms/Attributor/cb_liveness_disabled.ll
index 16c57b1a1e8c6..d74fef2a0b373 100644
--- a/llvm/test/Transforms/Attributor/cb_liveness_disabled.ll
+++ b/llvm/test/Transforms/Attributor/cb_liveness_disabled.ll
@@ -192,10 +192,10 @@ attributes #0 = { noinline nounwind sspstrong uwtable}
 ; TUNIT_: !0 = !{i32 0, i32 101}
 ; TUNIT_: !1 = !{i32 100, i32 201}
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind readnone sspstrong willreturn uwtable }
-; TUNIT: attributes #[[ATTR1:[0-9]+]] = { nofree nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind sspstrong willreturn memory(none) uwtable }
+; TUNIT: attributes #[[ATTR1:[0-9]+]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind readnone sspstrong willreturn uwtable }
-; CGSCC: attributes #[[ATTR1]] = { nofree noinline nosync nounwind readnone sspstrong willreturn uwtable }
-; CGSCC: attributes #[[ATTR2:[0-9]+]] = { readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind sspstrong willreturn memory(none) uwtable }
+; CGSCC: attributes #[[ATTR1]] = { nofree noinline nosync nounwind sspstrong willreturn memory(none) uwtable }
+; CGSCC: attributes #[[ATTR2:[0-9]+]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/cb_liveness_enabled.ll b/llvm/test/Transforms/Attributor/cb_liveness_enabled.ll
index 3f26a19cb0825..54c61aace5260 100644
--- a/llvm/test/Transforms/Attributor/cb_liveness_enabled.ll
+++ b/llvm/test/Transforms/Attributor/cb_liveness_enabled.ll
@@ -195,10 +195,10 @@ attributes #0 = { noinline nounwind sspstrong uwtable}
 ; TUNIT_: !0 = !{i32 0, i32 101}
 ; TUNIT_: !1 = !{i32 100, i32 201}
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind readnone sspstrong willreturn uwtable }
-; TUNIT: attributes #[[ATTR1:[0-9]+]] = { nofree nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind sspstrong willreturn memory(none) uwtable }
+; TUNIT: attributes #[[ATTR1:[0-9]+]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind readnone sspstrong willreturn uwtable }
-; CGSCC: attributes #[[ATTR1]] = { nofree noinline nosync nounwind readnone sspstrong willreturn uwtable }
-; CGSCC: attributes #[[ATTR2:[0-9]+]] = { readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind sspstrong willreturn memory(none) uwtable }
+; CGSCC: attributes #[[ATTR1]] = { nofree noinline nosync nounwind sspstrong willreturn memory(none) uwtable }
+; CGSCC: attributes #[[ATTR2:[0-9]+]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/cb_range_disabled.ll b/llvm/test/Transforms/Attributor/cb_range_disabled.ll
index e3771fd70104f..9463b3d840138 100644
--- a/llvm/test/Transforms/Attributor/cb_range_disabled.ll
+++ b/llvm/test/Transforms/Attributor/cb_range_disabled.ll
@@ -141,10 +141,10 @@ define i32 @test2_ncheck(i32 %unknown) {
   ret i32 %3
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR1:[0-9]+]] = { nofree nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR1:[0-9]+]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2:[0-9]+]] = { readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2:[0-9]+]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/cb_range_enabled.ll b/llvm/test/Transforms/Attributor/cb_range_enabled.ll
index 674e45e0f1aaa..42663300eacf6 100644
--- a/llvm/test/Transforms/Attributor/cb_range_enabled.ll
+++ b/llvm/test/Transforms/Attributor/cb_range_enabled.ll
@@ -145,10 +145,10 @@ define i32 @test2_ncheck(i32 %unknown) {
   ret i32 %3
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR1:[0-9]+]] = { nofree nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR1:[0-9]+]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2:[0-9]+]] = { readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2:[0-9]+]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/depgraph.ll b/llvm/test/Transforms/Attributor/depgraph.ll
index 48d11a76e313e..81b13489703c2 100644
--- a/llvm/test/Transforms/Attributor/depgraph.ll
+++ b/llvm/test/Transforms/Attributor/depgraph.ll
@@ -14,7 +14,7 @@
 ; }
 ;
 define i32* @checkAndAdvance(i32* align 16 %0) {
-; CHECK: Function Attrs: argmemonly nofree nosync nounwind readonly
+; CHECK: Function Attrs: nofree nosync nounwind memory(argmem: read)
 ; CHECK-LABEL: define {{[^@]+}}@checkAndAdvance
 ; CHECK-SAME: (i32* nofree noundef nonnull readonly align 16 dereferenceable(4) [[TMP0:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    [[TMP2:%.*]] = load i32, i32* [[TMP0]], align 16
@@ -380,6 +380,6 @@ define i32* @checkAndAdvance(i32* align 16 %0) {
 ; DOT-DAG: Node[[Node44]] -> Node[[Node43]];
 ; DOT-DAG: Node[[Node43]] -> Node[[Node44]];
 ;.
-; CHECK: attributes #[[ATTR0]] = { argmemonly nofree nosync nounwind readonly }
-; CHECK: attributes #[[ATTR1]] = { nofree nosync nounwind readonly }
+; CHECK: attributes #[[ATTR0]] = { nofree nosync nounwind memory(argmem: read) }
+; CHECK: attributes #[[ATTR1]] = { nofree nosync nounwind }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/dereferenceable-1.ll b/llvm/test/Transforms/Attributor/dereferenceable-1.ll
index fee64076d90f2..ec3a106d5fa19 100644
--- a/llvm/test/Transforms/Attributor/dereferenceable-1.ll
+++ b/llvm/test/Transforms/Attributor/dereferenceable-1.ll
@@ -12,7 +12,7 @@ declare void @deref_phi_user(i32* %a);
 ; CHECK: @[[G:[a-zA-Z0-9_$"\\.-]+]] = global i64 0
 ;.
 define i32* @test1(i32* dereferenceable(4) %0, double* dereferenceable(8) %1, i1 zeroext %2) local_unnamed_addr {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test1
 ; CHECK-SAME: (i32* nofree nonnull readnone dereferenceable(4) "no-capture-maybe-returned" [[TMP0:%.*]], double* nofree nonnull readnone dereferenceable(8) "no-capture-maybe-returned" [[TMP1:%.*]], i1 zeroext [[TMP2:%.*]]) local_unnamed_addr #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    [[TMP4:%.*]] = bitcast double* [[TMP1]] to i32*
@@ -26,7 +26,7 @@ define i32* @test1(i32* dereferenceable(4) %0, double* dereferenceable(8) %1, i1
 
 ; TEST 2
 define i32* @test2(i32* dereferenceable_or_null(4) %0, double* dereferenceable(8) %1, i1 zeroext %2) local_unnamed_addr {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test2
 ; CHECK-SAME: (i32* nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" [[TMP0:%.*]], double* nofree nonnull readnone dereferenceable(8) "no-capture-maybe-returned" [[TMP1:%.*]], i1 zeroext [[TMP2:%.*]]) local_unnamed_addr #[[ATTR0]] {
 ; CHECK-NEXT:    [[TMP4:%.*]] = bitcast double* [[TMP1]] to i32*
@@ -41,7 +41,7 @@ define i32* @test2(i32* dereferenceable_or_null(4) %0, double* dereferenceable(8
 ; TEST 3
 ; GEP inbounds
 define i32* @test3_1(i32* dereferenceable(8) %0) local_unnamed_addr {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test3_1
 ; CHECK-SAME: (i32* nofree nonnull readnone dereferenceable(8) "no-capture-maybe-returned" [[TMP0:%.*]]) local_unnamed_addr #[[ATTR0]] {
 ; CHECK-NEXT:    [[RET:%.*]] = getelementptr inbounds i32, i32* [[TMP0]], i64 1
@@ -52,7 +52,7 @@ define i32* @test3_1(i32* dereferenceable(8) %0) local_unnamed_addr {
 }
 
 define i32* @test3_2(i32* dereferenceable_or_null(32) %0) local_unnamed_addr {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test3_2
 ; CHECK-SAME: (i32* nofree readnone dereferenceable_or_null(32) "no-capture-maybe-returned" [[TMP0:%.*]]) local_unnamed_addr #[[ATTR0]] {
 ; CHECK-NEXT:    [[RET:%.*]] = getelementptr inbounds i32, i32* [[TMP0]], i64 4
@@ -63,7 +63,7 @@ define i32* @test3_2(i32* dereferenceable_or_null(32) %0) local_unnamed_addr {
 }
 
 define i32* @test3_3(i32* dereferenceable(8) %0, i32* dereferenceable(16) %1, i1 %2) local_unnamed_addr {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test3_3
 ; CHECK-SAME: (i32* nofree nonnull readnone dereferenceable(8) "no-capture-maybe-returned" [[TMP0:%.*]], i32* nofree nonnull readnone dereferenceable(16) "no-capture-maybe-returned" [[TMP1:%.*]], i1 [[TMP2:%.*]]) local_unnamed_addr #[[ATTR0]] {
 ; CHECK-NEXT:    [[RET1:%.*]] = getelementptr inbounds i32, i32* [[TMP0]], i64 1
@@ -81,7 +81,7 @@ define i32* @test3_3(i32* dereferenceable(8) %0, i32* dereferenceable(16) %1, i1
 ; Better than known in IR.
 
 define dereferenceable(4) i32* @test4(i32* dereferenceable(8) %0) local_unnamed_addr {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test4
 ; CHECK-SAME: (i32* nofree nonnull readnone returned dereferenceable(8) "no-capture-maybe-returned" [[TMP0:%.*]]) local_unnamed_addr #[[ATTR0]] {
 ; CHECK-NEXT:    ret i32* [[TMP0]]
@@ -284,7 +284,7 @@ define i32* @f7_3() {
 
 ; FIXME: This should have a return dereferenceable(8) but we need to make sure it will work in loops as well.
 define i32* @test_for_minus_index(i32* %p) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@test_for_minus_index
 ; CHECK-SAME: (i32* nofree nonnull writeonly align 4 "no-capture-maybe-returned" [[P:%.*]]) #[[ATTR2:[0-9]+]] {
 ; CHECK-NEXT:    [[Q:%.*]] = getelementptr inbounds i32, i32* [[P]], i32 -2
@@ -297,7 +297,7 @@ define i32* @test_for_minus_index(i32* %p) {
 }
 
 define void @deref_or_null_and_nonnull(i32* dereferenceable_or_null(100) %0) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@deref_or_null_and_nonnull
 ; CHECK-SAME: (i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(100) [[TMP0:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    store i32 1, i32* [[TMP0]], align 4
@@ -316,7 +316,7 @@ define void @deref_or_null_and_nonnull(i32* dereferenceable_or_null(100) %0) {
 
 ; FIXME: %ptr should be dereferenceable(31)
 define void @test8(i8* %ptr) #0 {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@test8
 ; CHECK-SAME: (i8* nocapture nofree nonnull writeonly dereferenceable(21) [[PTR:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    br label [[TMP1:%.*]]
@@ -351,7 +351,7 @@ define void @test8(i8* %ptr) #0 {
 
 ; 8.2 (negative case)
 define void @test8_neg(i32 %i, i8* %ptr) #0 {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@test8_neg
 ; CHECK-SAME: (i32 [[I:%.*]], i8* nocapture nofree nonnull writeonly [[PTR:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    [[TMP1:%.*]] = sext i32 [[I]] to i64
@@ -374,7 +374,7 @@ define void @test8_neg(i32 %i, i8* %ptr) #0 {
 
 ; NOTE: %p should not be dereferenceable
 define internal void @fill_range_not_inbounds(i32* %p, i64 %start){
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@fill_range_not_inbounds
 ; CHECK-SAME: (i32* nocapture nofree writeonly [[P:%.*]], i64 [[START:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:  entry:
@@ -410,7 +410,7 @@ for.body:                                         ; preds = %entry, %for.body
 
 ; FIXME: %p should be dereferenceable(40)
 define internal void @fill_range_inbounds(i32* %p, i64 %start){
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@fill_range_inbounds
 ; CHECK-SAME: (i32* nocapture nofree writeonly [[P:%.*]], i64 [[START:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:  entry:
@@ -445,7 +445,7 @@ for.body:                                         ; preds = %entry, %for.body
 }
 
 define void @call_fill_range(i32* nocapture %p, i64* nocapture readonly %range) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@call_fill_range
 ; TUNIT-SAME: (i32* nocapture nofree writeonly [[P:%.*]], i64* nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) [[RANGE:%.*]]) #[[ATTR3:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
@@ -454,13 +454,13 @@ define void @call_fill_range(i32* nocapture %p, i64* nocapture readonly %range)
 ; TUNIT-NEXT:    tail call void @fill_range_not_inbounds(i32* nocapture nofree writeonly [[P]], i64 [[TMP0]]) #[[ATTR6]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@call_fill_range
 ; CGSCC-SAME: (i32* nocapture nofree writeonly [[P:%.*]], i64* nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) [[RANGE:%.*]]) #[[ATTR3:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
 ; CGSCC-NEXT:    [[TMP0:%.*]] = load i64, i64* [[RANGE]], align 8, !range [[RNG0:![0-9]+]]
-; CGSCC-NEXT:    tail call void @fill_range_inbounds(i32* nocapture nofree writeonly [[P]], i64 [[TMP0]]) #[[ATTR6:[0-9]+]]
-; CGSCC-NEXT:    tail call void @fill_range_not_inbounds(i32* nocapture nofree writeonly [[P]], i64 [[TMP0]]) #[[ATTR6]]
+; CGSCC-NEXT:    tail call void @fill_range_inbounds(i32* nocapture nofree writeonly [[P]], i64 [[TMP0]]) #[[ATTR1]]
+; CGSCC-NEXT:    tail call void @fill_range_not_inbounds(i32* nocapture nofree writeonly [[P]], i64 [[TMP0]]) #[[ATTR1]]
 ; CGSCC-NEXT:    ret void
 ;
 entry:
@@ -563,7 +563,7 @@ cont2:
 ;
 ; FIXME: %ptr should be dereferenceable(4)
 define dso_local void @rec-branch-1(i32 %a, i32 %b, i32 %c, i32* %ptr) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@rec-branch-1
 ; CHECK-SAME: (i32 [[A:%.*]], i32 [[B:%.*]], i32 [[C:%.*]], i32* nocapture nofree writeonly [[PTR:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:  entry:
@@ -637,32 +637,59 @@ if.end8:                                          ; preds = %if.then5, %if.else6
 ;  }
 ; FIXME: %ptr should be dereferenceable(4)
 define dso_local void @rec-branch-2(i32 %a, i32 %b, i32 %c, i32* %ptr) {
-; CHECK: Function Attrs: argmemonly nofree nosync nounwind writeonly
-; CHECK-LABEL: define {{[^@]+}}@rec-branch-2
-; CHECK-SAME: (i32 [[A:%.*]], i32 [[B:%.*]], i32 [[C:%.*]], i32* nocapture nofree writeonly [[PTR:%.*]]) #[[ATTR4:[0-9]+]] {
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TOBOOL:%.*]] = icmp eq i32 [[A]], 0
-; CHECK-NEXT:    br i1 [[TOBOOL]], label [[IF_ELSE3:%.*]], label [[IF_THEN:%.*]]
-; CHECK:       if.then:
-; CHECK-NEXT:    [[TOBOOL1:%.*]] = icmp eq i32 [[B]], 0
-; CHECK-NEXT:    br i1 [[TOBOOL1]], label [[IF_ELSE:%.*]], label [[IF_THEN2:%.*]]
-; CHECK:       if.then2:
-; CHECK-NEXT:    store i32 1, i32* [[PTR]], align 4
-; CHECK-NEXT:    br label [[IF_END8:%.*]]
-; CHECK:       if.else:
-; CHECK-NEXT:    store i32 2, i32* [[PTR]], align 4
-; CHECK-NEXT:    br label [[IF_END8]]
-; CHECK:       if.else3:
-; CHECK-NEXT:    [[TOBOOL4:%.*]] = icmp eq i32 [[C]], 0
-; CHECK-NEXT:    br i1 [[TOBOOL4]], label [[IF_ELSE6:%.*]], label [[IF_THEN5:%.*]]
-; CHECK:       if.then5:
-; CHECK-NEXT:    store i32 3, i32* [[PTR]], align 4
-; CHECK-NEXT:    br label [[IF_END8]]
-; CHECK:       if.else6:
-; CHECK-NEXT:    tail call void @rec-branch-2(i32 noundef 1, i32 noundef 1, i32 noundef 1, i32* nocapture nofree writeonly [[PTR]]) #[[ATTR7:[0-9]+]]
-; CHECK-NEXT:    br label [[IF_END8]]
-; CHECK:       if.end8:
-; CHECK-NEXT:    ret void
+; TUNIT: Function Attrs: nofree nosync nounwind memory(argmem: write)
+; TUNIT-LABEL: define {{[^@]+}}@rec-branch-2
+; TUNIT-SAME: (i32 [[A:%.*]], i32 [[B:%.*]], i32 [[C:%.*]], i32* nocapture nofree writeonly [[PTR:%.*]]) #[[ATTR4:[0-9]+]] {
+; TUNIT-NEXT:  entry:
+; TUNIT-NEXT:    [[TOBOOL:%.*]] = icmp eq i32 [[A]], 0
+; TUNIT-NEXT:    br i1 [[TOBOOL]], label [[IF_ELSE3:%.*]], label [[IF_THEN:%.*]]
+; TUNIT:       if.then:
+; TUNIT-NEXT:    [[TOBOOL1:%.*]] = icmp eq i32 [[B]], 0
+; TUNIT-NEXT:    br i1 [[TOBOOL1]], label [[IF_ELSE:%.*]], label [[IF_THEN2:%.*]]
+; TUNIT:       if.then2:
+; TUNIT-NEXT:    store i32 1, i32* [[PTR]], align 4
+; TUNIT-NEXT:    br label [[IF_END8:%.*]]
+; TUNIT:       if.else:
+; TUNIT-NEXT:    store i32 2, i32* [[PTR]], align 4
+; TUNIT-NEXT:    br label [[IF_END8]]
+; TUNIT:       if.else3:
+; TUNIT-NEXT:    [[TOBOOL4:%.*]] = icmp eq i32 [[C]], 0
+; TUNIT-NEXT:    br i1 [[TOBOOL4]], label [[IF_ELSE6:%.*]], label [[IF_THEN5:%.*]]
+; TUNIT:       if.then5:
+; TUNIT-NEXT:    store i32 3, i32* [[PTR]], align 4
+; TUNIT-NEXT:    br label [[IF_END8]]
+; TUNIT:       if.else6:
+; TUNIT-NEXT:    tail call void @rec-branch-2(i32 noundef 1, i32 noundef 1, i32 noundef 1, i32* nocapture nofree writeonly [[PTR]]) #[[ATTR7:[0-9]+]]
+; TUNIT-NEXT:    br label [[IF_END8]]
+; TUNIT:       if.end8:
+; TUNIT-NEXT:    ret void
+;
+; CGSCC: Function Attrs: nofree nosync nounwind memory(argmem: write)
+; CGSCC-LABEL: define {{[^@]+}}@rec-branch-2
+; CGSCC-SAME: (i32 [[A:%.*]], i32 [[B:%.*]], i32 [[C:%.*]], i32* nocapture nofree writeonly [[PTR:%.*]]) #[[ATTR4:[0-9]+]] {
+; CGSCC-NEXT:  entry:
+; CGSCC-NEXT:    [[TOBOOL:%.*]] = icmp eq i32 [[A]], 0
+; CGSCC-NEXT:    br i1 [[TOBOOL]], label [[IF_ELSE3:%.*]], label [[IF_THEN:%.*]]
+; CGSCC:       if.then:
+; CGSCC-NEXT:    [[TOBOOL1:%.*]] = icmp eq i32 [[B]], 0
+; CGSCC-NEXT:    br i1 [[TOBOOL1]], label [[IF_ELSE:%.*]], label [[IF_THEN2:%.*]]
+; CGSCC:       if.then2:
+; CGSCC-NEXT:    store i32 1, i32* [[PTR]], align 4
+; CGSCC-NEXT:    br label [[IF_END8:%.*]]
+; CGSCC:       if.else:
+; CGSCC-NEXT:    store i32 2, i32* [[PTR]], align 4
+; CGSCC-NEXT:    br label [[IF_END8]]
+; CGSCC:       if.else3:
+; CGSCC-NEXT:    [[TOBOOL4:%.*]] = icmp eq i32 [[C]], 0
+; CGSCC-NEXT:    br i1 [[TOBOOL4]], label [[IF_ELSE6:%.*]], label [[IF_THEN5:%.*]]
+; CGSCC:       if.then5:
+; CGSCC-NEXT:    store i32 3, i32* [[PTR]], align 4
+; CGSCC-NEXT:    br label [[IF_END8]]
+; CGSCC:       if.else6:
+; CGSCC-NEXT:    tail call void @rec-branch-2(i32 noundef 1, i32 noundef 1, i32 noundef 1, i32* nocapture nofree writeonly [[PTR]]) #[[ATTR6:[0-9]+]]
+; CGSCC-NEXT:    br label [[IF_END8]]
+; CGSCC:       if.end8:
+; CGSCC-NEXT:    ret void
 ;
 entry:
   %tobool = icmp eq i32 %a, 0
@@ -704,11 +731,17 @@ define void @nonnull_assume_pos(i8* %arg1, i8* %arg2, i8* %arg3, i8* %arg4) {
 ; ATTRIBUTOR-NEXT:    call void @unknown()
 ; ATTRIBUTOR-NEXT:    ret void
 ;
-; CHECK-LABEL: define {{[^@]+}}@nonnull_assume_pos
-; CHECK-SAME: (i8* nocapture nofree nonnull readnone dereferenceable(101) [[ARG1:%.*]], i8* nocapture nofree readnone dereferenceable_or_null(31) [[ARG2:%.*]], i8* nocapture nofree nonnull readnone [[ARG3:%.*]], i8* nocapture nofree readnone dereferenceable_or_null(42) [[ARG4:%.*]]) {
-; CHECK-NEXT:    call void @llvm.assume(i1 noundef true) #[[ATTR8:[0-9]+]] [ "nonnull"(i8* [[ARG3]]), "dereferenceable"(i8* [[ARG1]], i64 1), "dereferenceable"(i8* [[ARG1]], i64 2), "dereferenceable"(i8* [[ARG1]], i64 101), "dereferenceable_or_null"(i8* [[ARG2]], i64 31), "dereferenceable_or_null"(i8* [[ARG4]], i64 42) ]
-; CHECK-NEXT:    call void @unknown()
-; CHECK-NEXT:    ret void
+; TUNIT-LABEL: define {{[^@]+}}@nonnull_assume_pos
+; TUNIT-SAME: (i8* nocapture nofree nonnull readnone dereferenceable(101) [[ARG1:%.*]], i8* nocapture nofree readnone dereferenceable_or_null(31) [[ARG2:%.*]], i8* nocapture nofree nonnull readnone [[ARG3:%.*]], i8* nocapture nofree readnone dereferenceable_or_null(42) [[ARG4:%.*]]) {
+; TUNIT-NEXT:    call void @llvm.assume(i1 noundef true) #[[ATTR8:[0-9]+]] [ "nonnull"(i8* [[ARG3]]), "dereferenceable"(i8* [[ARG1]], i64 1), "dereferenceable"(i8* [[ARG1]], i64 2), "dereferenceable"(i8* [[ARG1]], i64 101), "dereferenceable_or_null"(i8* [[ARG2]], i64 31), "dereferenceable_or_null"(i8* [[ARG4]], i64 42) ]
+; TUNIT-NEXT:    call void @unknown()
+; TUNIT-NEXT:    ret void
+;
+; CGSCC-LABEL: define {{[^@]+}}@nonnull_assume_pos
+; CGSCC-SAME: (i8* nocapture nofree nonnull readnone dereferenceable(101) [[ARG1:%.*]], i8* nocapture nofree readnone dereferenceable_or_null(31) [[ARG2:%.*]], i8* nocapture nofree nonnull readnone [[ARG3:%.*]], i8* nocapture nofree readnone dereferenceable_or_null(42) [[ARG4:%.*]]) {
+; CGSCC-NEXT:    call void @llvm.assume(i1 noundef true) #[[ATTR7:[0-9]+]] [ "nonnull"(i8* [[ARG3]]), "dereferenceable"(i8* [[ARG1]], i64 1), "dereferenceable"(i8* [[ARG1]], i64 2), "dereferenceable"(i8* [[ARG1]], i64 101), "dereferenceable_or_null"(i8* [[ARG2]], i64 31), "dereferenceable_or_null"(i8* [[ARG4]], i64 42) ]
+; CGSCC-NEXT:    call void @unknown()
+; CGSCC-NEXT:    ret void
 ;
   call void @llvm.assume(i1 true) [ "nonnull"(i8* %arg3), "dereferenceable"(i8* %arg1, i64 1), "dereferenceable"(i8* %arg1, i64 2), "dereferenceable"(i8* %arg1, i64 101), "dereferenceable_or_null"(i8* %arg2, i64 31), "dereferenceable_or_null"(i8* %arg4, i64 42)]
   call void @unknown()
@@ -750,23 +783,41 @@ define void @nonnull_assume_call(i8* %arg1, i8* %arg2, i8* %arg3, i8* %arg4) {
 ; ATTRIBUTOR-NEXT:    call void @unknown()
 ; ATTRIBUTOR-NEXT:    ret void
 ;
-; CHECK-LABEL: define {{[^@]+}}@nonnull_assume_call
-; CHECK-SAME: (i8* [[ARG1:%.*]], i8* [[ARG2:%.*]], i8* [[ARG3:%.*]], i8* [[ARG4:%.*]]) {
-; CHECK-NEXT:    call void @unknown()
-; CHECK-NEXT:    [[P:%.*]] = call nonnull dereferenceable(101) i32* @unkown_ptr() #[[ATTR9:[0-9]+]]
-; CHECK-NEXT:    call void @unknown_use32(i32* nonnull dereferenceable(101) [[P]]) #[[ATTR9]]
-; CHECK-NEXT:    call void @unknown_use8(i8* dereferenceable_or_null(42) [[ARG4]]) #[[ATTR9]]
-; CHECK-NEXT:    call void @unknown_use8(i8* nonnull [[ARG3]]) #[[ATTR9]]
-; CHECK-NEXT:    call void @unknown_use8(i8* dereferenceable_or_null(31) [[ARG2]]) #[[ATTR9]]
-; CHECK-NEXT:    call void @unknown_use8(i8* nonnull dereferenceable(2) [[ARG1]]) #[[ATTR9]]
-; CHECK-NEXT:    call void @llvm.assume(i1 noundef true) [ "nonnull"(i8* [[ARG3]]), "dereferenceable"(i8* [[ARG1]], i64 1), "dereferenceable"(i8* [[ARG1]], i64 2), "dereferenceable"(i32* [[P]], i64 101), "dereferenceable_or_null"(i8* [[ARG2]], i64 31), "dereferenceable_or_null"(i8* [[ARG4]], i64 42) ]
-; CHECK-NEXT:    call void @unknown_use8(i8* nonnull dereferenceable(2) [[ARG1]]) #[[ATTR9]]
-; CHECK-NEXT:    call void @unknown_use8(i8* dereferenceable_or_null(31) [[ARG2]]) #[[ATTR9]]
-; CHECK-NEXT:    call void @unknown_use8(i8* nonnull [[ARG3]]) #[[ATTR9]]
-; CHECK-NEXT:    call void @unknown_use8(i8* dereferenceable_or_null(42) [[ARG4]]) #[[ATTR9]]
-; CHECK-NEXT:    call void @unknown_use32(i32* nonnull dereferenceable(101) [[P]]) #[[ATTR9]]
-; CHECK-NEXT:    call void @unknown()
-; CHECK-NEXT:    ret void
+; TUNIT-LABEL: define {{[^@]+}}@nonnull_assume_call
+; TUNIT-SAME: (i8* [[ARG1:%.*]], i8* [[ARG2:%.*]], i8* [[ARG3:%.*]], i8* [[ARG4:%.*]]) {
+; TUNIT-NEXT:    call void @unknown()
+; TUNIT-NEXT:    [[P:%.*]] = call nonnull dereferenceable(101) i32* @unkown_ptr() #[[ATTR9:[0-9]+]]
+; TUNIT-NEXT:    call void @unknown_use32(i32* nonnull dereferenceable(101) [[P]]) #[[ATTR9]]
+; TUNIT-NEXT:    call void @unknown_use8(i8* dereferenceable_or_null(42) [[ARG4]]) #[[ATTR9]]
+; TUNIT-NEXT:    call void @unknown_use8(i8* nonnull [[ARG3]]) #[[ATTR9]]
+; TUNIT-NEXT:    call void @unknown_use8(i8* dereferenceable_or_null(31) [[ARG2]]) #[[ATTR9]]
+; TUNIT-NEXT:    call void @unknown_use8(i8* nonnull dereferenceable(2) [[ARG1]]) #[[ATTR9]]
+; TUNIT-NEXT:    call void @llvm.assume(i1 noundef true) [ "nonnull"(i8* [[ARG3]]), "dereferenceable"(i8* [[ARG1]], i64 1), "dereferenceable"(i8* [[ARG1]], i64 2), "dereferenceable"(i32* [[P]], i64 101), "dereferenceable_or_null"(i8* [[ARG2]], i64 31), "dereferenceable_or_null"(i8* [[ARG4]], i64 42) ]
+; TUNIT-NEXT:    call void @unknown_use8(i8* nonnull dereferenceable(2) [[ARG1]]) #[[ATTR9]]
+; TUNIT-NEXT:    call void @unknown_use8(i8* dereferenceable_or_null(31) [[ARG2]]) #[[ATTR9]]
+; TUNIT-NEXT:    call void @unknown_use8(i8* nonnull [[ARG3]]) #[[ATTR9]]
+; TUNIT-NEXT:    call void @unknown_use8(i8* dereferenceable_or_null(42) [[ARG4]]) #[[ATTR9]]
+; TUNIT-NEXT:    call void @unknown_use32(i32* nonnull dereferenceable(101) [[P]]) #[[ATTR9]]
+; TUNIT-NEXT:    call void @unknown()
+; TUNIT-NEXT:    ret void
+;
+; CGSCC-LABEL: define {{[^@]+}}@nonnull_assume_call
+; CGSCC-SAME: (i8* [[ARG1:%.*]], i8* [[ARG2:%.*]], i8* [[ARG3:%.*]], i8* [[ARG4:%.*]]) {
+; CGSCC-NEXT:    call void @unknown()
+; CGSCC-NEXT:    [[P:%.*]] = call nonnull dereferenceable(101) i32* @unkown_ptr() #[[ATTR8:[0-9]+]]
+; CGSCC-NEXT:    call void @unknown_use32(i32* nonnull dereferenceable(101) [[P]]) #[[ATTR8]]
+; CGSCC-NEXT:    call void @unknown_use8(i8* dereferenceable_or_null(42) [[ARG4]]) #[[ATTR8]]
+; CGSCC-NEXT:    call void @unknown_use8(i8* nonnull [[ARG3]]) #[[ATTR8]]
+; CGSCC-NEXT:    call void @unknown_use8(i8* dereferenceable_or_null(31) [[ARG2]]) #[[ATTR8]]
+; CGSCC-NEXT:    call void @unknown_use8(i8* nonnull dereferenceable(2) [[ARG1]]) #[[ATTR8]]
+; CGSCC-NEXT:    call void @llvm.assume(i1 noundef true) [ "nonnull"(i8* [[ARG3]]), "dereferenceable"(i8* [[ARG1]], i64 1), "dereferenceable"(i8* [[ARG1]], i64 2), "dereferenceable"(i32* [[P]], i64 101), "dereferenceable_or_null"(i8* [[ARG2]], i64 31), "dereferenceable_or_null"(i8* [[ARG4]], i64 42) ]
+; CGSCC-NEXT:    call void @unknown_use8(i8* nonnull dereferenceable(2) [[ARG1]]) #[[ATTR8]]
+; CGSCC-NEXT:    call void @unknown_use8(i8* dereferenceable_or_null(31) [[ARG2]]) #[[ATTR8]]
+; CGSCC-NEXT:    call void @unknown_use8(i8* nonnull [[ARG3]]) #[[ATTR8]]
+; CGSCC-NEXT:    call void @unknown_use8(i8* dereferenceable_or_null(42) [[ARG4]]) #[[ATTR8]]
+; CGSCC-NEXT:    call void @unknown_use32(i32* nonnull dereferenceable(101) [[P]]) #[[ATTR8]]
+; CGSCC-NEXT:    call void @unknown()
+; CGSCC-NEXT:    ret void
 ;
   call void @unknown()
   %p = call i32* @unkown_ptr()
@@ -818,27 +869,26 @@ f:
 !0 = !{i64 10, i64 100}
 
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ; TUNIT: attributes #[[ATTR1]] = { nounwind willreturn }
-; TUNIT: attributes #[[ATTR2]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR3]] = { argmemonly nofree norecurse nosync nounwind willreturn }
-; TUNIT: attributes #[[ATTR4]] = { argmemonly nofree nosync nounwind writeonly }
-; TUNIT: attributes #[[ATTR5:[0-9]+]] = { inaccessiblememonly nocallback nofree nosync nounwind willreturn }
-; TUNIT: attributes #[[ATTR6]] = { nofree nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR7]] = { nofree nosync nounwind writeonly }
+; TUNIT: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; TUNIT: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) }
+; TUNIT: attributes #[[ATTR4]] = { nofree nosync nounwind memory(argmem: write) }
+; TUNIT: attributes #[[ATTR5:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite) }
+; TUNIT: attributes #[[ATTR6]] = { nofree nosync nounwind willreturn }
+; TUNIT: attributes #[[ATTR7]] = { nofree nosync nounwind }
 ; TUNIT: attributes #[[ATTR8]] = { willreturn }
 ; TUNIT: attributes #[[ATTR9]] = { nounwind }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ; CGSCC: attributes #[[ATTR1]] = { nounwind willreturn }
-; CGSCC: attributes #[[ATTR2]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR3]] = { argmemonly nofree nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR4]] = { argmemonly nofree nosync nounwind writeonly }
-; CGSCC: attributes #[[ATTR5:[0-9]+]] = { inaccessiblememonly nocallback nofree nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR6]] = { nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR7]] = { nofree nosync nounwind writeonly }
-; CGSCC: attributes #[[ATTR8]] = { willreturn }
-; CGSCC: attributes #[[ATTR9]] = { nounwind }
+; CGSCC: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; CGSCC: attributes #[[ATTR3]] = { nofree nosync nounwind willreturn memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR4]] = { nofree nosync nounwind memory(argmem: write) }
+; CGSCC: attributes #[[ATTR5:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite) }
+; CGSCC: attributes #[[ATTR6]] = { nofree nosync nounwind }
+; CGSCC: attributes #[[ATTR7]] = { willreturn }
+; CGSCC: attributes #[[ATTR8]] = { nounwind }
 ;.
 ; CHECK: [[META0:![0-9]+]] = !{i64 10, i64 100}
 ;.

diff  --git a/llvm/test/Transforms/Attributor/dereferenceable-2-inseltpoison.ll b/llvm/test/Transforms/Attributor/dereferenceable-2-inseltpoison.ll
index 2f0b8986ccac5..68066817c54bf 100644
--- a/llvm/test/Transforms/Attributor/dereferenceable-2-inseltpoison.ll
+++ b/llvm/test/Transforms/Attributor/dereferenceable-2-inseltpoison.ll
@@ -6,7 +6,7 @@
 ; https://bugs.llvm.org/show_bug.cgi?id=21780
 
 define <4 x double> @PR21780(double* %ptr) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: define {{[^@]+}}@PR21780
 ; CHECK-SAME: (double* nocapture nofree noundef nonnull readonly align 8 dereferenceable(32) [[PTR:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds double, double* [[PTR]], i64 1
@@ -44,7 +44,7 @@ define <4 x double> @PR21780(double* %ptr) {
 
 
 define double @PR21780_only_access3_with_inbounds(double* %ptr) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: define {{[^@]+}}@PR21780_only_access3_with_inbounds
 ; CHECK-SAME: (double* nocapture nofree nonnull readonly align 8 dereferenceable(32) [[PTR:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[ARRAYIDX3:%.*]] = getelementptr inbounds double, double* [[PTR]], i64 3
@@ -58,7 +58,7 @@ define double @PR21780_only_access3_with_inbounds(double* %ptr) {
 }
 
 define double @PR21780_only_access3_without_inbounds(double* %ptr) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: define {{[^@]+}}@PR21780_only_access3_without_inbounds
 ; CHECK-SAME: (double* nocapture nofree readonly align 8 [[PTR:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[ARRAYIDX3:%.*]] = getelementptr double, double* [[PTR]], i64 3
@@ -71,7 +71,7 @@ define double @PR21780_only_access3_without_inbounds(double* %ptr) {
 }
 
 define double @PR21780_without_inbounds(double* %ptr) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: define {{[^@]+}}@PR21780_without_inbounds
 ; CHECK-SAME: (double* nocapture nofree noundef nonnull readonly align 8 dereferenceable(32) [[PTR:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[ARRAYIDX3:%.*]] = getelementptr double, double* [[PTR]], i64 3
@@ -94,7 +94,7 @@ define double @PR21780_without_inbounds(double* %ptr) {
 ; Unsimplified, but still valid. Also, throw in some bogus arguments.
 
 define void @gep0(i8* %unused, i8* %other, i8* %ptr) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@gep0
 ; CHECK-SAME: (i8* nocapture nofree readnone [[UNUSED:%.*]], i8* nocapture nofree noundef nonnull writeonly dereferenceable(1) [[OTHER:%.*]], i8* nocapture nofree nonnull readonly dereferenceable(3) [[PTR:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr i8, i8* [[PTR]], i64 2
@@ -116,7 +116,7 @@ define void @gep0(i8* %unused, i8* %other, i8* %ptr) {
 ; Multiple arguments may be dereferenceable.
 
 define void @ordering(i8* %ptr1, i32* %ptr2) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@ordering
 ; CHECK-SAME: (i8* nocapture nofree nonnull readnone dereferenceable(3) [[PTR1:%.*]], i32* nocapture nofree nonnull readnone align 4 dereferenceable(8) [[PTR2:%.*]]) #[[ATTR2:[0-9]+]] {
 ; CHECK-NEXT:    ret void
@@ -137,7 +137,7 @@ define void @ordering(i8* %ptr1, i32* %ptr2) {
 ; Not in entry block.
 
 define void @not_entry_but_guaranteed_to_execute(i8* %ptr) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@not_entry_but_guaranteed_to_execute
 ; CHECK-SAME: (i8* nocapture nofree nonnull readnone dereferenceable(3) [[PTR:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:  entry:
@@ -160,7 +160,7 @@ exit:
 ; Not in entry block and not guaranteed to execute.
 
 define void @not_entry_not_guaranteed_to_execute(i8* %ptr, i1 %cond) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@not_entry_not_guaranteed_to_execute
 ; CHECK-SAME: (i8* nocapture nofree readnone [[PTR:%.*]], i1 [[COND:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:  entry:
@@ -187,7 +187,7 @@ exit:
 ; The last load may not execute, so derefenceable bytes only covers the 1st two loads.
 
 define void @partial_in_entry(i16* %ptr, i1 %cond) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@partial_in_entry
 ; CHECK-SAME: (i16* nocapture nofree nonnull readnone align 2 dereferenceable(4) [[PTR:%.*]], i1 [[COND:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:  entry:
@@ -215,7 +215,7 @@ exit:
 ; The 2nd and 3rd loads may never execute.
 
 define void @volatile_is_not_dereferenceable(i16* %ptr) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nounwind willreturn
+; CHECK: Function Attrs: nofree norecurse nounwind willreturn memory(argmem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@volatile_is_not_dereferenceable
 ; CHECK-SAME: (i16* nofree align 2 [[PTR:%.*]]) #[[ATTR3:[0-9]+]] {
 ; CHECK-NEXT:    [[T0:%.*]] = load volatile i16, i16* [[PTR]], align 2
@@ -233,7 +233,7 @@ define void @volatile_is_not_dereferenceable(i16* %ptr) {
 ; TODO: We should allow inference for atomic (but not volatile) ops.
 
 define void @atomic_is_alright(i16* %ptr) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@atomic_is_alright
 ; CHECK-SAME: (i16* nocapture nofree nonnull readnone align 2 dereferenceable(6) [[PTR:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -268,7 +268,7 @@ define void @not_guaranteed_to_transfer_execution(i16* %ptr) {
 ; We must have consecutive accesses.
 
 define void @variable_gep_index(i8* %unused, i8* %ptr, i64 %variable_index) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@variable_gep_index
 ; CHECK-SAME: (i8* nocapture nofree readnone [[UNUSED:%.*]], i8* nocapture nofree nonnull readnone dereferenceable(1) [[PTR:%.*]], i64 [[VARIABLE_INDEX:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -285,7 +285,7 @@ define void @variable_gep_index(i8* %unused, i8* %ptr, i64 %variable_index) {
 
 define void @multi_index_gep(<4 x i8>* %ptr) {
 ; FIXME: %ptr should be dereferenceable(4)
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@multi_index_gep
 ; CHECK-SAME: (<4 x i8>* nocapture nofree nonnull readnone dereferenceable(1) [[PTR:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -298,7 +298,7 @@ define void @multi_index_gep(<4 x i8>* %ptr) {
 ; Could round weird bitwidths down?
 
 define void @not_byte_multiple(i9* %ptr) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@not_byte_multiple
 ; CHECK-SAME: (i9* nocapture nofree nonnull readnone align 2 dereferenceable(2) [[PTR:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -311,7 +311,7 @@ define void @not_byte_multiple(i9* %ptr) {
 ; Missing direct access from the pointer.
 
 define void @no_pointer_deref(i16* %ptr) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@no_pointer_deref
 ; CHECK-SAME: (i16* nocapture nofree readnone align 2 [[PTR:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -326,7 +326,7 @@ define void @no_pointer_deref(i16* %ptr) {
 ; Out-of-order is ok, but missing access concludes dereferenceable range.
 
 define void @non_consecutive(i32* %ptr) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@non_consecutive
 ; CHECK-SAME: (i32* nocapture nofree nonnull readnone align 4 dereferenceable(8) [[PTR:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -343,7 +343,7 @@ define void @non_consecutive(i32* %ptr) {
 ; Improve on existing dereferenceable attribute.
 
 define void @more_bytes(i32* dereferenceable(8) %ptr) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@more_bytes
 ; CHECK-SAME: (i32* nocapture nofree nonnull readnone align 4 dereferenceable(16) [[PTR:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -362,7 +362,7 @@ define void @more_bytes(i32* dereferenceable(8) %ptr) {
 ; Improve on existing dereferenceable_or_null attribute.
 
 define void @more_bytes_and_not_null(i32* dereferenceable_or_null(8) %ptr) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@more_bytes_and_not_null
 ; CHECK-SAME: (i32* nocapture nofree nonnull readnone align 4 dereferenceable(16) [[PTR:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -381,7 +381,7 @@ define void @more_bytes_and_not_null(i32* dereferenceable_or_null(8) %ptr) {
 ; But don't pessimize existing dereferenceable attribute.
 
 define void @better_bytes(i32* dereferenceable(100) %ptr) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@better_bytes
 ; CHECK-SAME: (i32* nocapture nofree nonnull readnone align 4 dereferenceable(100) [[PTR:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -398,7 +398,7 @@ define void @better_bytes(i32* dereferenceable(100) %ptr) {
 }
 
 define void @bitcast(i32* %arg) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@bitcast
 ; CHECK-SAME: (i32* nocapture nofree nonnull readnone align 4 dereferenceable(8) [[ARG:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -412,7 +412,7 @@ define void @bitcast(i32* %arg) {
 }
 
 define void @bitcast_
diff erent_sizes(double* %arg1, i8* %arg2) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@bitcast_
diff erent_sizes
 ; CHECK-SAME: (double* nocapture nofree nonnull readnone align 4 dereferenceable(12) [[ARG1:%.*]], i8* nocapture nofree nonnull readnone align 4 dereferenceable(16) [[ARG2:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -434,7 +434,7 @@ define void @bitcast_
diff erent_sizes(double* %arg1, i8* %arg2) {
 }
 
 define void @negative_offset(i32* %arg) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@negative_offset
 ; CHECK-SAME: (i32* nocapture nofree nonnull readnone align 4 dereferenceable(4) [[ARG:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -448,7 +448,7 @@ define void @negative_offset(i32* %arg) {
 }
 
 define void @stores(i32* %arg) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@stores
 ; CHECK-SAME: (i32* nocapture nofree nonnull writeonly align 4 dereferenceable(8) [[ARG:%.*]]) #[[ATTR4:[0-9]+]] {
 ; CHECK-NEXT:    [[PTR:%.*]] = bitcast i32* [[ARG]] to float*
@@ -467,7 +467,7 @@ define void @stores(i32* %arg) {
 }
 
 define void @load_store(i32* %arg) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@load_store
 ; CHECK-SAME: (i32* nocapture nofree nonnull writeonly align 4 dereferenceable(8) [[ARG:%.*]]) #[[ATTR4]] {
 ; CHECK-NEXT:    [[PTR:%.*]] = bitcast i32* [[ARG]] to float*
@@ -484,7 +484,7 @@ define void @load_store(i32* %arg) {
 }
 
 define void @
diff erent_size1(i32* %arg) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@
diff erent_size1
 ; CHECK-SAME: (i32* nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[ARG:%.*]]) #[[ATTR4]] {
 ; CHECK-NEXT:    [[ARG_CAST:%.*]] = bitcast i32* [[ARG]] to double*
@@ -499,7 +499,7 @@ define void @
diff erent_size1(i32* %arg) {
 }
 
 define void @
diff erent_size2(i32* %arg) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@
diff erent_size2
 ; CHECK-SAME: (i32* nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[ARG:%.*]]) #[[ATTR4]] {
 ; CHECK-NEXT:    store i32 0, i32* [[ARG]], align 8
@@ -532,7 +532,7 @@ define void @
diff erent_size2(i32* %arg) {
 ;
 ; ATTRIBUTOR_CGSCC_NPM-LABEL: define i32 @require_cfg_analysis(i32 %c, i32* {{.*}} dereferenceable(4) %p)
 define i32 @require_cfg_analysis(i32 %c, i32* %p) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@require_cfg_analysis
 ; CHECK-SAME: (i32 [[C:%.*]], i32* nocapture nofree nonnull writeonly align 4 dereferenceable(4) [[P:%.*]]) #[[ATTR4]] {
 ; CHECK-NEXT:    [[TOBOOL1:%.*]] = icmp eq i32 [[C]], 0
@@ -584,9 +584,9 @@ end:
   ret i32 1
 }
 ;.
-; CHECK: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; CHECK: attributes #[[ATTR1]] = { argmemonly nofree norecurse nosync nounwind willreturn }
-; CHECK: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CHECK: attributes #[[ATTR3]] = { argmemonly nofree norecurse nounwind willreturn }
-; CHECK: attributes #[[ATTR4]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
+; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; CHECK: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) }
+; CHECK: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CHECK: attributes #[[ATTR3]] = { nofree norecurse nounwind willreturn memory(argmem: readwrite) }
+; CHECK: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/dereferenceable-2.ll b/llvm/test/Transforms/Attributor/dereferenceable-2.ll
index 76ed8c9f7a6e2..9c8bcfc0aed56 100644
--- a/llvm/test/Transforms/Attributor/dereferenceable-2.ll
+++ b/llvm/test/Transforms/Attributor/dereferenceable-2.ll
@@ -6,7 +6,7 @@
 ; https://bugs.llvm.org/show_bug.cgi?id=21780
 
 define <4 x double> @PR21780(double* %ptr) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: define {{[^@]+}}@PR21780
 ; CHECK-SAME: (double* nocapture nofree noundef nonnull readonly align 8 dereferenceable(32) [[PTR:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds double, double* [[PTR]], i64 1
@@ -44,7 +44,7 @@ define <4 x double> @PR21780(double* %ptr) {
 
 
 define double @PR21780_only_access3_with_inbounds(double* %ptr) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: define {{[^@]+}}@PR21780_only_access3_with_inbounds
 ; CHECK-SAME: (double* nocapture nofree nonnull readonly align 8 dereferenceable(32) [[PTR:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[ARRAYIDX3:%.*]] = getelementptr inbounds double, double* [[PTR]], i64 3
@@ -58,7 +58,7 @@ define double @PR21780_only_access3_with_inbounds(double* %ptr) {
 }
 
 define double @PR21780_only_access3_without_inbounds(double* %ptr) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: define {{[^@]+}}@PR21780_only_access3_without_inbounds
 ; CHECK-SAME: (double* nocapture nofree readonly align 8 [[PTR:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[ARRAYIDX3:%.*]] = getelementptr double, double* [[PTR]], i64 3
@@ -71,7 +71,7 @@ define double @PR21780_only_access3_without_inbounds(double* %ptr) {
 }
 
 define double @PR21780_without_inbounds(double* %ptr) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: define {{[^@]+}}@PR21780_without_inbounds
 ; CHECK-SAME: (double* nocapture nofree noundef nonnull readonly align 8 dereferenceable(32) [[PTR:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[ARRAYIDX3:%.*]] = getelementptr double, double* [[PTR]], i64 3
@@ -94,7 +94,7 @@ define double @PR21780_without_inbounds(double* %ptr) {
 ; Unsimplified, but still valid. Also, throw in some bogus arguments.
 
 define void @gep0(i8* %unused, i8* %other, i8* %ptr) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@gep0
 ; CHECK-SAME: (i8* nocapture nofree readnone [[UNUSED:%.*]], i8* nocapture nofree noundef nonnull writeonly dereferenceable(1) [[OTHER:%.*]], i8* nocapture nofree nonnull readonly dereferenceable(3) [[PTR:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr i8, i8* [[PTR]], i64 2
@@ -116,7 +116,7 @@ define void @gep0(i8* %unused, i8* %other, i8* %ptr) {
 ; Multiple arguments may be dereferenceable.
 
 define void @ordering(i8* %ptr1, i32* %ptr2) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@ordering
 ; CHECK-SAME: (i8* nocapture nofree nonnull readnone dereferenceable(3) [[PTR1:%.*]], i32* nocapture nofree nonnull readnone align 4 dereferenceable(8) [[PTR2:%.*]]) #[[ATTR2:[0-9]+]] {
 ; CHECK-NEXT:    ret void
@@ -137,7 +137,7 @@ define void @ordering(i8* %ptr1, i32* %ptr2) {
 ; Not in entry block.
 
 define void @not_entry_but_guaranteed_to_execute(i8* %ptr) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@not_entry_but_guaranteed_to_execute
 ; CHECK-SAME: (i8* nocapture nofree nonnull readnone dereferenceable(3) [[PTR:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:  entry:
@@ -160,7 +160,7 @@ exit:
 ; Not in entry block and not guaranteed to execute.
 
 define void @not_entry_not_guaranteed_to_execute(i8* %ptr, i1 %cond) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@not_entry_not_guaranteed_to_execute
 ; CHECK-SAME: (i8* nocapture nofree readnone [[PTR:%.*]], i1 [[COND:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:  entry:
@@ -187,7 +187,7 @@ exit:
 ; The last load may not execute, so derefenceable bytes only covers the 1st two loads.
 
 define void @partial_in_entry(i16* %ptr, i1 %cond) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@partial_in_entry
 ; CHECK-SAME: (i16* nocapture nofree nonnull readnone align 2 dereferenceable(4) [[PTR:%.*]], i1 [[COND:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:  entry:
@@ -215,7 +215,7 @@ exit:
 ; The 2nd and 3rd loads may never execute.
 
 define void @volatile_is_not_dereferenceable(i16* %ptr) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nounwind willreturn
+; CHECK: Function Attrs: nofree norecurse nounwind willreturn memory(argmem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@volatile_is_not_dereferenceable
 ; CHECK-SAME: (i16* nofree align 2 [[PTR:%.*]]) #[[ATTR3:[0-9]+]] {
 ; CHECK-NEXT:    [[T0:%.*]] = load volatile i16, i16* [[PTR]], align 2
@@ -233,7 +233,7 @@ define void @volatile_is_not_dereferenceable(i16* %ptr) {
 ; TODO: We should allow inference for atomic (but not volatile) ops.
 
 define void @atomic_is_alright(i16* %ptr) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@atomic_is_alright
 ; CHECK-SAME: (i16* nocapture nofree nonnull readnone align 2 dereferenceable(6) [[PTR:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -268,7 +268,7 @@ define void @not_guaranteed_to_transfer_execution(i16* %ptr) {
 ; We must have consecutive accesses.
 
 define void @variable_gep_index(i8* %unused, i8* %ptr, i64 %variable_index) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@variable_gep_index
 ; CHECK-SAME: (i8* nocapture nofree readnone [[UNUSED:%.*]], i8* nocapture nofree nonnull readnone dereferenceable(1) [[PTR:%.*]], i64 [[VARIABLE_INDEX:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -285,7 +285,7 @@ define void @variable_gep_index(i8* %unused, i8* %ptr, i64 %variable_index) {
 
 define void @multi_index_gep(<4 x i8>* %ptr) {
 ; FIXME: %ptr should be dereferenceable(4)
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@multi_index_gep
 ; CHECK-SAME: (<4 x i8>* nocapture nofree nonnull readnone dereferenceable(1) [[PTR:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -298,7 +298,7 @@ define void @multi_index_gep(<4 x i8>* %ptr) {
 ; Could round weird bitwidths down?
 
 define void @not_byte_multiple(i9* %ptr) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@not_byte_multiple
 ; CHECK-SAME: (i9* nocapture nofree nonnull readnone align 2 dereferenceable(2) [[PTR:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -311,7 +311,7 @@ define void @not_byte_multiple(i9* %ptr) {
 ; Missing direct access from the pointer.
 
 define void @no_pointer_deref(i16* %ptr) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@no_pointer_deref
 ; CHECK-SAME: (i16* nocapture nofree readnone align 2 [[PTR:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -326,7 +326,7 @@ define void @no_pointer_deref(i16* %ptr) {
 ; Out-of-order is ok, but missing access concludes dereferenceable range.
 
 define void @non_consecutive(i32* %ptr) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@non_consecutive
 ; CHECK-SAME: (i32* nocapture nofree nonnull readnone align 4 dereferenceable(8) [[PTR:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -343,7 +343,7 @@ define void @non_consecutive(i32* %ptr) {
 ; Improve on existing dereferenceable attribute.
 
 define void @more_bytes(i32* dereferenceable(8) %ptr) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@more_bytes
 ; CHECK-SAME: (i32* nocapture nofree nonnull readnone align 4 dereferenceable(16) [[PTR:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -362,7 +362,7 @@ define void @more_bytes(i32* dereferenceable(8) %ptr) {
 ; Improve on existing dereferenceable_or_null attribute.
 
 define void @more_bytes_and_not_null(i32* dereferenceable_or_null(8) %ptr) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@more_bytes_and_not_null
 ; CHECK-SAME: (i32* nocapture nofree nonnull readnone align 4 dereferenceable(16) [[PTR:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -381,7 +381,7 @@ define void @more_bytes_and_not_null(i32* dereferenceable_or_null(8) %ptr) {
 ; But don't pessimize existing dereferenceable attribute.
 
 define void @better_bytes(i32* dereferenceable(100) %ptr) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@better_bytes
 ; CHECK-SAME: (i32* nocapture nofree nonnull readnone align 4 dereferenceable(100) [[PTR:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -398,7 +398,7 @@ define void @better_bytes(i32* dereferenceable(100) %ptr) {
 }
 
 define void @bitcast(i32* %arg) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@bitcast
 ; CHECK-SAME: (i32* nocapture nofree nonnull readnone align 4 dereferenceable(8) [[ARG:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -412,7 +412,7 @@ define void @bitcast(i32* %arg) {
 }
 
 define void @bitcast_
diff erent_sizes(double* %arg1, i8* %arg2) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@bitcast_
diff erent_sizes
 ; CHECK-SAME: (double* nocapture nofree nonnull readnone align 4 dereferenceable(12) [[ARG1:%.*]], i8* nocapture nofree nonnull readnone align 4 dereferenceable(16) [[ARG2:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -434,7 +434,7 @@ define void @bitcast_
diff erent_sizes(double* %arg1, i8* %arg2) {
 }
 
 define void @negative_offset(i32* %arg) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@negative_offset
 ; CHECK-SAME: (i32* nocapture nofree nonnull readnone align 4 dereferenceable(4) [[ARG:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    ret void
@@ -448,7 +448,7 @@ define void @negative_offset(i32* %arg) {
 }
 
 define void @stores(i32* %arg) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@stores
 ; CHECK-SAME: (i32* nocapture nofree nonnull writeonly align 4 dereferenceable(8) [[ARG:%.*]]) #[[ATTR4:[0-9]+]] {
 ; CHECK-NEXT:    [[PTR:%.*]] = bitcast i32* [[ARG]] to float*
@@ -467,7 +467,7 @@ define void @stores(i32* %arg) {
 }
 
 define void @load_store(i32* %arg) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@load_store
 ; CHECK-SAME: (i32* nocapture nofree nonnull writeonly align 4 dereferenceable(8) [[ARG:%.*]]) #[[ATTR4]] {
 ; CHECK-NEXT:    [[PTR:%.*]] = bitcast i32* [[ARG]] to float*
@@ -484,7 +484,7 @@ define void @load_store(i32* %arg) {
 }
 
 define void @
diff erent_size1(i32* %arg) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@
diff erent_size1
 ; CHECK-SAME: (i32* nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[ARG:%.*]]) #[[ATTR4]] {
 ; CHECK-NEXT:    [[ARG_CAST:%.*]] = bitcast i32* [[ARG]] to double*
@@ -499,7 +499,7 @@ define void @
diff erent_size1(i32* %arg) {
 }
 
 define void @
diff erent_size2(i32* %arg) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@
diff erent_size2
 ; CHECK-SAME: (i32* nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[ARG:%.*]]) #[[ATTR4]] {
 ; CHECK-NEXT:    store i32 0, i32* [[ARG]], align 8
@@ -532,7 +532,7 @@ define void @
diff erent_size2(i32* %arg) {
 ;
 ; ATTRIBUTOR_CGSCC_NPM-LABEL: define i32 @require_cfg_analysis(i32 %c, i32* {{.*}} dereferenceable(4) %p)
 define i32 @require_cfg_analysis(i32 %c, i32* %p) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@require_cfg_analysis
 ; CHECK-SAME: (i32 [[C:%.*]], i32* nocapture nofree nonnull writeonly align 4 dereferenceable(4) [[P:%.*]]) #[[ATTR4]] {
 ; CHECK-NEXT:    [[TOBOOL1:%.*]] = icmp eq i32 [[C]], 0
@@ -584,9 +584,9 @@ end:
   ret i32 1
 }
 ;.
-; CHECK: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; CHECK: attributes #[[ATTR1]] = { argmemonly nofree norecurse nosync nounwind willreturn }
-; CHECK: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CHECK: attributes #[[ATTR3]] = { argmemonly nofree norecurse nounwind willreturn }
-; CHECK: attributes #[[ATTR4]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
+; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; CHECK: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) }
+; CHECK: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CHECK: attributes #[[ATTR3]] = { nofree norecurse nounwind willreturn memory(argmem: readwrite) }
+; CHECK: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/heap_to_stack.ll b/llvm/test/Transforms/Attributor/heap_to_stack.ll
index 270797ee9d574..d1240f1449944 100644
--- a/llvm/test/Transforms/Attributor/heap_to_stack.ll
+++ b/llvm/test/Transforms/Attributor/heap_to_stack.ll
@@ -656,9 +656,9 @@ define void @test16d(i8 %v, i8** %P) {
 ; CHECK: attributes #[[ATTR3:[0-9]+]] = { nofree nounwind }
 ; CHECK: attributes #[[ATTR4]] = { noreturn }
 ; CHECK: attributes #[[ATTR5:[0-9]+]] = { allockind("free") }
-; CHECK: attributes #[[ATTR6:[0-9]+]] = { argmemonly nocallback nofree nosync nounwind willreturn }
+; CHECK: attributes #[[ATTR6:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
 ; CHECK: attributes #[[ATTR7:[0-9]+]] = { allockind("alloc,uninitialized,aligned") allocsize(1) }
 ; CHECK: attributes #[[ATTR8:[0-9]+]] = { allockind("alloc,zeroed") allocsize(0,1) }
-; CHECK: attributes #[[ATTR9:[0-9]+]] = { argmemonly nocallback nofree nounwind willreturn writeonly }
+; CHECK: attributes #[[ATTR9:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) }
 ; CHECK: attributes #[[ATTR10]] = { nounwind }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/heap_to_stack_gpu.ll b/llvm/test/Transforms/Attributor/heap_to_stack_gpu.ll
index 04295912d589a..7f2e16d878bbd 100644
--- a/llvm/test/Transforms/Attributor/heap_to_stack_gpu.ll
+++ b/llvm/test/Transforms/Attributor/heap_to_stack_gpu.ll
@@ -662,7 +662,7 @@ not_entry:
 ; CHECK: attributes #[[ATTR1:[0-9]+]] = { nofree nosync willreturn }
 ; CHECK: attributes #[[ATTR2:[0-9]+]] = { nofree nounwind }
 ; CHECK: attributes #[[ATTR3]] = { noreturn }
-; CHECK: attributes #[[ATTR4:[0-9]+]] = { argmemonly nocallback nofree nosync nounwind willreturn }
+; CHECK: attributes #[[ATTR4:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
 ; CHECK: attributes #[[ATTR5]] = { nounwind }
 ; CHECK: attributes #[[ATTR6]] = { nosync nounwind willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/internal-noalias.ll b/llvm/test/Transforms/Attributor/internal-noalias.ll
index f55c00ed9258f..b7cc29822560f 100644
--- a/llvm/test/Transforms/Attributor/internal-noalias.ll
+++ b/llvm/test/Transforms/Attributor/internal-noalias.ll
@@ -3,7 +3,7 @@
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,CGSCC
 
 define dso_local i32 @visible(i32* noalias %A, i32* noalias %B) #0 {
-; TUNIT: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind readonly willreturn uwtable
+; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(argmem: read) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@visible
 ; TUNIT-SAME: (i32* noalias nocapture nofree readonly [[A:%.*]], i32* noalias nocapture nofree readonly align 4 [[B:%.*]]) #[[ATTR0:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
@@ -12,12 +12,12 @@ define dso_local i32 @visible(i32* noalias %A, i32* noalias %B) #0 {
 ; TUNIT-NEXT:    [[ADD:%.*]] = add nsw i32 [[CALL1]], [[CALL2]]
 ; TUNIT-NEXT:    ret i32 [[ADD]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree noinline nosync nounwind readonly willreturn uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind willreturn memory(argmem: read) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@visible
 ; CGSCC-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A:%.*]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
-; CGSCC-NEXT:    [[CALL1:%.*]] = call i32 @noalias_args(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) #[[ATTR5:[0-9]+]]
-; CGSCC-NEXT:    [[CALL2:%.*]] = call i32 @noalias_args_argmem(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) #[[ATTR5]]
+; CGSCC-NEXT:    [[CALL1:%.*]] = call i32 @noalias_args(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]])
+; CGSCC-NEXT:    [[CALL2:%.*]] = call i32 @noalias_args_argmem(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]])
 ; CGSCC-NEXT:    [[ADD:%.*]] = add nsw i32 [[CALL1]], [[CALL2]]
 ; CGSCC-NEXT:    ret i32 [[ADD]]
 ;
@@ -29,7 +29,7 @@ entry:
 }
 
 define private i32 @noalias_args(i32* %A, i32* %B) #0 {
-; TUNIT: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind readonly willreturn uwtable
+; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(argmem: read) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@noalias_args
 ; TUNIT-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A:%.*]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:  entry:
@@ -40,14 +40,14 @@ define private i32 @noalias_args(i32* %A, i32* %B) #0 {
 ; TUNIT-NEXT:    [[ADD2:%.*]] = add nsw i32 [[ADD]], [[CALL]]
 ; TUNIT-NEXT:    ret i32 [[ADD2]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree noinline nosync nounwind readonly willreturn uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind willreturn memory(argmem: read) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@noalias_args
 ; CGSCC-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A:%.*]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B:%.*]]) #[[ATTR0]] {
 ; CGSCC-NEXT:  entry:
 ; CGSCC-NEXT:    [[TMP0:%.*]] = load i32, i32* [[A]], align 4
 ; CGSCC-NEXT:    [[TMP1:%.*]] = load i32, i32* [[B]], align 4
 ; CGSCC-NEXT:    [[ADD:%.*]] = add nsw i32 [[TMP0]], [[TMP1]]
-; CGSCC-NEXT:    [[CALL:%.*]] = call i32 @noalias_args_argmem(i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) #[[ATTR5]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call i32 @noalias_args_argmem(i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) #[[ATTR5:[0-9]+]]
 ; CGSCC-NEXT:    [[ADD2:%.*]] = add nsw i32 [[ADD]], [[CALL]]
 ; CGSCC-NEXT:    ret i32 [[ADD2]]
 ;
@@ -62,7 +62,7 @@ entry:
 
 
 define internal i32 @noalias_args_argmem(i32* %A, i32* %B) #1 {
-; TUNIT: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind readonly willreturn uwtable
+; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(argmem: read) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@noalias_args_argmem
 ; TUNIT-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A:%.*]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:  entry:
@@ -71,7 +71,7 @@ define internal i32 @noalias_args_argmem(i32* %A, i32* %B) #1 {
 ; TUNIT-NEXT:    [[ADD:%.*]] = add nsw i32 [[TMP0]], [[TMP1]]
 ; TUNIT-NEXT:    ret i32 [[ADD]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind readonly willreturn uwtable
+; CGSCC: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(argmem: read) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@noalias_args_argmem
 ; CGSCC-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A:%.*]], i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -88,7 +88,7 @@ entry:
 }
 
 define dso_local i32 @visible_local(i32* %A) #0 {
-; TUNIT: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind willreturn uwtable
+; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@visible_local
 ; TUNIT-SAME: (i32* nocapture nofree readonly [[A:%.*]]) #[[ATTR1:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
@@ -99,13 +99,13 @@ define dso_local i32 @visible_local(i32* %A) #0 {
 ; TUNIT-NEXT:    [[ADD:%.*]] = add nsw i32 [[CALL1]], [[CALL2]]
 ; TUNIT-NEXT:    ret i32 [[ADD]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree noinline nosync nounwind willreturn uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@visible_local
 ; CGSCC-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A:%.*]]) #[[ATTR2:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
 ; CGSCC-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; CGSCC-NEXT:    store i32 5, i32* [[B]], align 4
-; CGSCC-NEXT:    [[CALL1:%.*]] = call i32 @noalias_args(i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) #[[ATTR5]]
+; CGSCC-NEXT:    [[CALL1:%.*]] = call i32 @noalias_args(i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]])
 ; CGSCC-NEXT:    [[CALL2:%.*]] = call i32 @noalias_args_argmem(i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]])
 ; CGSCC-NEXT:    [[ADD:%.*]] = add nsw i32 [[CALL1]], [[CALL2]]
 ; CGSCC-NEXT:    ret i32 [[ADD]]
@@ -120,7 +120,7 @@ entry:
 }
 
 define internal i32 @noalias_args_argmem_ro(i32* %A, i32* %B) #1 {
-; CGSCC: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind readonly willreturn uwtable
+; CGSCC: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(argmem: read) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@noalias_args_argmem_ro
 ; CGSCC-SAME: (i32 [[TMP0:%.*]], i32 [[TMP1:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:    [[B_PRIV:%.*]] = alloca i32, align 4
@@ -139,13 +139,13 @@ define internal i32 @noalias_args_argmem_ro(i32* %A, i32* %B) #1 {
 }
 
 define i32 @visible_local_2() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@visible_local_2
 ; TUNIT-SAME: () #[[ATTR2:[0-9]+]] {
 ; TUNIT-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; TUNIT-NEXT:    ret i32 10
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@visible_local_2
 ; CGSCC-SAME: () #[[ATTR3:[0-9]+]] {
 ; CGSCC-NEXT:    [[CALL:%.*]] = call i32 @noalias_args_argmem_ro(i32 noundef 5, i32 noundef 5) #[[ATTR6:[0-9]+]]
@@ -158,13 +158,13 @@ define i32 @visible_local_2() {
 }
 
 define internal i32 @noalias_args_argmem_rn(i32* %A, i32* %B) #1 {
-; TUNIT: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind willreturn uwtable
+; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@noalias_args_argmem_rn
 ; TUNIT-SAME: (i32* noalias nocapture nofree noundef nonnull align 4 dereferenceable(4) [[B:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    [[T0:%.*]] = load i32, i32* [[B]], align 4
 ; TUNIT-NEXT:    ret i32 [[T0]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind willreturn uwtable
+; CGSCC: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@noalias_args_argmem_rn
 ; CGSCC-SAME: (i32* noalias nocapture nofree noundef nonnull align 4 dereferenceable(4) [[B:%.*]]) #[[ATTR4:[0-9]+]] {
 ; CGSCC-NEXT:    [[T0:%.*]] = load i32, i32* [[B]], align 4
@@ -177,7 +177,7 @@ define internal i32 @noalias_args_argmem_rn(i32* %A, i32* %B) #1 {
 }
 
 define i32 @visible_local_3() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@visible_local_3
 ; TUNIT-SAME: () #[[ATTR2]] {
 ; TUNIT-NEXT:    [[B:%.*]] = alloca i32, align 4
@@ -185,7 +185,7 @@ define i32 @visible_local_3() {
 ; TUNIT-NEXT:    [[CALL:%.*]] = call i32 @noalias_args_argmem_rn(i32* noalias nocapture nofree noundef nonnull align 4 dereferenceable(4) [[B]]) #[[ATTR4:[0-9]+]]
 ; TUNIT-NEXT:    ret i32 [[CALL]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@visible_local_3
 ; CGSCC-SAME: () #[[ATTR3]] {
 ; CGSCC-NEXT:    [[B:%.*]] = alloca i32, align 4
@@ -202,18 +202,18 @@ define i32 @visible_local_3() {
 attributes #0 = { noinline nounwind uwtable willreturn }
 attributes #1 = { argmemonly noinline nounwind uwtable willreturn}
 ;.
-; TUNIT: attributes #[[ATTR0]] = { argmemonly nofree noinline norecurse nosync nounwind readonly willreturn uwtable }
-; TUNIT: attributes #[[ATTR1]] = { argmemonly nofree noinline norecurse nosync nounwind willreturn uwtable }
-; TUNIT: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR3]] = { nofree nosync nounwind readonly }
+; TUNIT: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind willreturn memory(argmem: read) uwtable }
+; TUNIT: attributes #[[ATTR1]] = { nofree noinline norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable }
+; TUNIT: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR3]] = { nofree nosync nounwind }
 ; TUNIT: attributes #[[ATTR4]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree noinline nosync nounwind readonly willreturn uwtable }
-; CGSCC: attributes #[[ATTR1]] = { argmemonly nofree noinline norecurse nosync nounwind readonly willreturn uwtable }
-; CGSCC: attributes #[[ATTR2]] = { argmemonly nofree noinline nosync nounwind willreturn uwtable }
-; CGSCC: attributes #[[ATTR3]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR4]] = { argmemonly nofree noinline norecurse nosync nounwind willreturn uwtable }
-; CGSCC: attributes #[[ATTR5]] = { readonly }
-; CGSCC: attributes #[[ATTR6]] = { readonly willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree noinline nosync nounwind willreturn memory(argmem: read) uwtable }
+; CGSCC: attributes #[[ATTR1]] = { nofree noinline norecurse nosync nounwind willreturn memory(argmem: read) uwtable }
+; CGSCC: attributes #[[ATTR2]] = { nofree noinline nosync nounwind willreturn memory(argmem: readwrite) uwtable }
+; CGSCC: attributes #[[ATTR3]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR4]] = { nofree noinline norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable }
+; CGSCC: attributes #[[ATTR5]] = { memory(read) }
+; CGSCC: attributes #[[ATTR6]] = { willreturn }
 ; CGSCC: attributes #[[ATTR7]] = { nounwind willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/internalize.ll b/llvm/test/Transforms/Attributor/internalize.ll
index 5574e1ef07cc5..80c2ac7c5eca1 100644
--- a/llvm/test/Transforms/Attributor/internalize.ll
+++ b/llvm/test/Transforms/Attributor/internalize.ll
@@ -135,7 +135,7 @@ define void @unused_arg_caller() {
 ; CHECK_DISABLED-NEXT:    call void @unused_arg(i8 noundef 0)
 ; CHECK_DISABLED-NEXT:    ret void
 ;
-; CHECK_ENABLED: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK_ENABLED: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK_ENABLED-LABEL: define {{[^@]+}}@unused_arg_caller
 ; CHECK_ENABLED-SAME: () #[[ATTR0:[0-9]+]] {
 ; CHECK_ENABLED-NEXT:    unreachable
@@ -164,7 +164,7 @@ define linkonce_odr hidden void @__clang_call_terminate() {
 ;.
 ; CHECK_DISABLED: attributes #[[ATTR0]] = { norecurse }
 ;.
-; CHECK_ENABLED: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; CHECK_ENABLED: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ; CHECK_ENABLED: attributes #[[ATTR1]] = { norecurse }
-; CHECK_ENABLED: attributes #[[ATTR2:[0-9]+]] = { nounwind readnone }
+; CHECK_ENABLED: attributes #[[ATTR2:[0-9]+]] = { nounwind }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/liveness.ll b/llvm/test/Transforms/Attributor/liveness.ll
index cad70b04e7943..87b8519c8551f 100644
--- a/llvm/test/Transforms/Attributor/liveness.ll
+++ b/llvm/test/Transforms/Attributor/liveness.ll
@@ -37,7 +37,7 @@ declare i32 @bar() nosync readnone
 ; CGSCC: @[[P:[a-zA-Z0-9_$"\\.-]+]] = global i8 0
 ;.
 define internal i32 @dead_internal_func(i32 %0) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@dead_internal_func
 ; CGSCC-SAME: () #[[ATTR6:[0-9]+]] {
 ; CGSCC-NEXT:    br label [[TMP2:%.*]]
@@ -68,13 +68,13 @@ define internal i32 @dead_internal_func(i32 %0) {
 }
 
 define i32 @volatile_load(i32*) norecurse nounwind uwtable {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nounwind willreturn uwtable
+; TUNIT: Function Attrs: nofree norecurse nounwind willreturn memory(argmem: readwrite) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@volatile_load
 ; TUNIT-SAME: (i32* nofree noundef align 4 [[TMP0:%.*]]) #[[ATTR6:[0-9]+]] {
 ; TUNIT-NEXT:    [[TMP2:%.*]] = load volatile i32, i32* [[TMP0]], align 4
 ; TUNIT-NEXT:    ret i32 [[TMP2]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nounwind willreturn uwtable
+; CGSCC: Function Attrs: nofree norecurse nounwind willreturn memory(argmem: readwrite) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@volatile_load
 ; CGSCC-SAME: (i32* nofree noundef align 4 [[TMP0:%.*]]) #[[ATTR7:[0-9]+]] {
 ; CGSCC-NEXT:    [[TMP2:%.*]] = load volatile i32, i32* [[TMP0]], align 4
@@ -85,7 +85,7 @@ define i32 @volatile_load(i32*) norecurse nounwind uwtable {
 }
 
 define internal i32 @internal_load(i32*) norecurse nounwind uwtable {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn uwtable
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@internal_load
 ; CGSCC-SAME: () #[[ATTR8:[0-9]+]] {
 ; CGSCC-NEXT:    ret i32 undef
@@ -498,7 +498,7 @@ cleanup:
 ; FIXME: Should be able to detect undefined behavior.
 
 define void @ub(i32* %0) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@ub
 ; TUNIT-SAME: (i32* nocapture nofree writeonly [[TMP0:%.*]]) #[[ATTR7:[0-9]+]] {
 ; TUNIT-NEXT:    [[POISON:%.*]] = sub nuw i32 0, 1
@@ -507,7 +507,7 @@ define void @ub(i32* %0) {
 ; TUNIT-NEXT:    store i32 0, i32* [[POISON_YET_AGAIN]], align 4
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@ub
 ; CGSCC-SAME: (i32* nocapture nofree writeonly [[TMP0:%.*]]) #[[ATTR9:[0-9]+]] {
 ; CGSCC-NEXT:    [[POISON:%.*]] = sub nuw i32 0, 1
@@ -524,7 +524,7 @@ define void @ub(i32* %0) {
 }
 
 define void @inf_loop() #0 {
-; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind readnone
+; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@inf_loop
 ; TUNIT-SAME: () #[[ATTR8:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
@@ -532,7 +532,7 @@ define void @inf_loop() #0 {
 ; TUNIT:       while.body:
 ; TUNIT-NEXT:    br label [[WHILE_BODY]]
 ;
-; CGSCC: Function Attrs: nofree norecurse noreturn nosync nounwind readnone
+; CGSCC: Function Attrs: nofree norecurse noreturn nosync nounwind memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@inf_loop
 ; CGSCC-SAME: () #[[ATTR10:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -551,7 +551,7 @@ while.body:                                       ; preds = %entry, %while.body
 ; FIXME: Detect infloops, and mark affected blocks dead.
 
 define i32 @test5(i32, i32) #0 {
-; CHECK: Function Attrs: nosync readnone
+; CHECK: Function Attrs: nosync memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test5
 ; CHECK-SAME: (i32 [[TMP0:%.*]], i32 [[TMP1:%.*]]) #[[ATTR5:[0-9]+]] {
 ; CHECK-NEXT:    [[TMP3:%.*]] = icmp sgt i32 [[TMP0]], [[TMP1]]
@@ -588,13 +588,13 @@ cond.end:                                               ; preds = %cond.if, %con
 }
 
 define void @rec() #0 {
-; TUNIT: Function Attrs: nofree nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@rec
 ; TUNIT-SAME: () #[[ATTR9:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@rec
 ; CGSCC-SAME: () #[[ATTR11:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -2228,7 +2228,7 @@ define i32 @switch_default_caller() {
 }
 
 define internal i32 @switch_default_dead(i64 %i) nounwind {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@switch_default_dead
 ; CGSCC-SAME: () #[[ATTR6]] {
 ; CGSCC-NEXT:  entry:
@@ -2255,12 +2255,12 @@ return:
 }
 
 define i32 @switch_default_dead_caller() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@switch_default_dead_caller
 ; TUNIT-SAME: () #[[ATTR11:[0-9]+]] {
 ; TUNIT-NEXT:    ret i32 123
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@switch_default_dead_caller
 ; CGSCC-SAME: () #[[ATTR11]] {
 ; CGSCC-NEXT:    [[CALL2:%.*]] = tail call noundef i32 @switch_default_dead() #[[ATTR16:[0-9]+]]
@@ -2377,7 +2377,7 @@ declare void @use_i32p(i32*)
 
 ; Allow blockaddress users
 define internal void @dead_with_blockaddress_users(i32* nocapture %pc) nounwind readonly {
-; CGSCC: Function Attrs: nounwind readonly
+; CGSCC: Function Attrs: nounwind memory(read)
 ; CGSCC-LABEL: define {{[^@]+}}@dead_with_blockaddress_users
 ; CGSCC-SAME: (i32* nocapture [[PC:%.*]]) #[[ATTR13:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -2422,59 +2422,33 @@ indirectgoto:                                     ; preds = %lab0, %entry
 @e = global %struct.a* null
 
 define i32 @main() {
-; TUNIT-LABEL: define {{[^@]+}}@main() {
-; TUNIT-NEXT:  entry:
-; TUNIT-NEXT:    [[F:%.*]] = alloca i32, align 4
-; TUNIT-NEXT:    br label [[FOR_COND_0:%.*]]
-; TUNIT:       for.cond.0:
-; TUNIT-NEXT:    [[G_0:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[FOR_BODY_0:%.*]] ]
-; TUNIT-NEXT:    [[CMP_0:%.*]] = icmp ult i32 [[G_0]], 100
-; TUNIT-NEXT:    br i1 [[CMP_0]], label [[FOR_BODY_0]], label [[FOR_END_0:%.*]]
-; TUNIT:       for.body.0:
-; TUNIT-NEXT:    [[INC]] = add nuw nsw i32 [[G_0]], 1
-; TUNIT-NEXT:    br label [[FOR_COND_0]]
-; TUNIT:       for.end.0:
-; TUNIT-NEXT:    [[CALL:%.*]] = call i8* @malloc(i64 noundef 8)
-; TUNIT-NEXT:    store i8* [[CALL]], i8** bitcast (%struct.a** @e to i8**), align 8
-; TUNIT-NEXT:    [[B:%.*]] = bitcast i8* [[CALL]] to %struct.a**
-; TUNIT-NEXT:    store %struct.a* null, %struct.a** [[B]], align 8
-; TUNIT-NEXT:    br label [[FOR_COND_1:%.*]]
-; TUNIT:       for.cond.1:
-; TUNIT-NEXT:    [[G_1:%.*]] = phi i32 [ 0, [[FOR_END_0]] ], [ [[INC6:%.*]], [[FOR_BODY_1:%.*]] ]
-; TUNIT-NEXT:    [[CMP_1:%.*]] = icmp ult i32 [[G_1]], 100
-; TUNIT-NEXT:    br i1 [[CMP_1]], label [[FOR_BODY_1]], label [[FOR_END_1:%.*]]
-; TUNIT:       for.body.1:
-; TUNIT-NEXT:    [[CALL4:%.*]] = call i32 (i32*, ...) bitcast (i32 (i32)* @h to i32 (i32*, ...)*)(i32* nonnull [[F]])
-; TUNIT-NEXT:    [[INC6]] = add nuw nsw i32 [[G_1]], 1
-; TUNIT-NEXT:    br label [[FOR_COND_1]]
-; TUNIT:       for.end.1:
-; TUNIT-NEXT:    ret i32 0
-;
-; CGSCC-LABEL: define {{[^@]+}}@main() {
-; CGSCC-NEXT:  entry:
-; CGSCC-NEXT:    br label [[FOR_COND_0:%.*]]
-; CGSCC:       for.cond.0:
-; CGSCC-NEXT:    [[G_0:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[FOR_BODY_0:%.*]] ]
-; CGSCC-NEXT:    [[CMP_0:%.*]] = icmp ult i32 [[G_0]], 100
-; CGSCC-NEXT:    br i1 [[CMP_0]], label [[FOR_BODY_0]], label [[FOR_END_0:%.*]]
-; CGSCC:       for.body.0:
-; CGSCC-NEXT:    [[INC]] = add nuw nsw i32 [[G_0]], 1
-; CGSCC-NEXT:    br label [[FOR_COND_0]]
-; CGSCC:       for.end.0:
-; CGSCC-NEXT:    [[CALL:%.*]] = call i8* @malloc(i64 noundef 8)
-; CGSCC-NEXT:    store i8* [[CALL]], i8** bitcast (%struct.a** @e to i8**), align 8
-; CGSCC-NEXT:    [[B:%.*]] = bitcast i8* [[CALL]] to %struct.a**
-; CGSCC-NEXT:    store %struct.a* null, %struct.a** [[B]], align 8
-; CGSCC-NEXT:    br label [[FOR_COND_1:%.*]]
-; CGSCC:       for.cond.1:
-; CGSCC-NEXT:    [[G_1:%.*]] = phi i32 [ 0, [[FOR_END_0]] ], [ [[INC6:%.*]], [[FOR_BODY_1:%.*]] ]
-; CGSCC-NEXT:    [[CMP_1:%.*]] = icmp ult i32 [[G_1]], 100
-; CGSCC-NEXT:    br i1 [[CMP_1]], label [[FOR_BODY_1]], label [[FOR_END_1:%.*]]
-; CGSCC:       for.body.1:
-; CGSCC-NEXT:    [[INC6]] = add nuw nsw i32 [[G_1]], 1
-; CGSCC-NEXT:    br label [[FOR_COND_1]]
-; CGSCC:       for.end.1:
-; CGSCC-NEXT:    ret i32 0
+; CHECK-LABEL: define {{[^@]+}}@main() {
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[F:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    br label [[FOR_COND_0:%.*]]
+; CHECK:       for.cond.0:
+; CHECK-NEXT:    [[G_0:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[FOR_BODY_0:%.*]] ]
+; CHECK-NEXT:    [[CMP_0:%.*]] = icmp ult i32 [[G_0]], 100
+; CHECK-NEXT:    br i1 [[CMP_0]], label [[FOR_BODY_0]], label [[FOR_END_0:%.*]]
+; CHECK:       for.body.0:
+; CHECK-NEXT:    [[INC]] = add nuw nsw i32 [[G_0]], 1
+; CHECK-NEXT:    br label [[FOR_COND_0]]
+; CHECK:       for.end.0:
+; CHECK-NEXT:    [[CALL:%.*]] = call i8* @malloc(i64 noundef 8)
+; CHECK-NEXT:    store i8* [[CALL]], i8** bitcast (%struct.a** @e to i8**), align 8
+; CHECK-NEXT:    [[B:%.*]] = bitcast i8* [[CALL]] to %struct.a**
+; CHECK-NEXT:    store %struct.a* null, %struct.a** [[B]], align 8
+; CHECK-NEXT:    br label [[FOR_COND_1:%.*]]
+; CHECK:       for.cond.1:
+; CHECK-NEXT:    [[G_1:%.*]] = phi i32 [ 0, [[FOR_END_0]] ], [ [[INC6:%.*]], [[FOR_BODY_1:%.*]] ]
+; CHECK-NEXT:    [[CMP_1:%.*]] = icmp ult i32 [[G_1]], 100
+; CHECK-NEXT:    br i1 [[CMP_1]], label [[FOR_BODY_1]], label [[FOR_END_1:%.*]]
+; CHECK:       for.body.1:
+; CHECK-NEXT:    [[CALL4:%.*]] = call i32 (i32*, ...) bitcast (i32 (i32)* @h to i32 (i32*, ...)*)(i32* nonnull [[F]])
+; CHECK-NEXT:    [[INC6]] = add nuw nsw i32 [[G_1]], 1
+; CHECK-NEXT:    br label [[FOR_COND_1]]
+; CHECK:       for.end.1:
+; CHECK-NEXT:    ret i32 0
 ;
 entry:
   %f = alloca i32
@@ -2513,12 +2487,12 @@ for.end.1:
 declare noalias i8* @malloc(i64)
 
 define i32 @h(i32 %i) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@h
 ; TUNIT-SAME: (i32 [[I:%.*]]) #[[ATTR11]] {
 ; TUNIT-NEXT:    ret i32 0
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@h
 ; CGSCC-SAME: (i32 [[I:%.*]]) #[[ATTR6]] {
 ; CGSCC-NEXT:    ret i32 0
@@ -2532,7 +2506,7 @@ define i32 @h(i32 %i) {
 @p = global i8 0
 
 define void @bad_gep() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@bad_gep
 ; TUNIT-SAME: () #[[ATTR11]] {
 ; TUNIT-NEXT:  entry:
@@ -2550,13 +2524,13 @@ define void @bad_gep() {
 ; TUNIT-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 1, i8* noalias nocapture nofree noundef nonnull dereferenceable(1) [[N]]) #[[ATTR14]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@bad_gep
 ; CGSCC-SAME: () #[[ATTR6]] {
 ; CGSCC-NEXT:  entry:
 ; CGSCC-NEXT:    [[N:%.*]] = alloca i8, align 1
 ; CGSCC-NEXT:    [[M:%.*]] = alloca i8, align 1
-; CGSCC-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 1, i8* noalias nocapture nofree noundef nonnull dereferenceable(1) [[N]]) #[[ATTR17:[0-9]+]]
+; CGSCC-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 1, i8* noalias nocapture nofree noundef nonnull dereferenceable(1) [[N]]) #[[ATTR16]]
 ; CGSCC-NEXT:    br label [[EXIT:%.*]]
 ; CGSCC:       while.body:
 ; CGSCC-NEXT:    unreachable
@@ -2565,7 +2539,7 @@ define void @bad_gep() {
 ; CGSCC:       if.end:
 ; CGSCC-NEXT:    unreachable
 ; CGSCC:       exit:
-; CGSCC-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 1, i8* noalias nocapture nofree noundef nonnull dereferenceable(1) [[N]]) #[[ATTR17]]
+; CGSCC-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 1, i8* noalias nocapture nofree noundef nonnull dereferenceable(1) [[N]]) #[[ATTR16]]
 ; CGSCC-NEXT:    ret void
 ;
 entry:
@@ -2594,7 +2568,7 @@ exit:
 }
 
 define i8 @edge_vs_block_liveness() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@edge_vs_block_liveness
 ; TUNIT-SAME: () #[[ATTR11]] {
 ; TUNIT-NEXT:  entry:
@@ -2605,7 +2579,7 @@ define i8 @edge_vs_block_liveness() {
 ; TUNIT-NEXT:    [[PHI:%.*]] = phi i8 [ 0, [[ENTRY:%.*]] ], [ 1, [[B1]] ]
 ; TUNIT-NEXT:    ret i8 1
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@edge_vs_block_liveness
 ; CGSCC-SAME: () #[[ATTR6]] {
 ; CGSCC-NEXT:  entry:
@@ -2632,37 +2606,36 @@ declare void @llvm.lifetime.start.p0i8(i64 %0, i8* %1)
 declare void @llvm.lifetime.end.p0i8(i64 %0, i8* %1)
 ;.
 ; TUNIT: attributes #[[ATTR0]] = { nofree noreturn nosync nounwind }
-; TUNIT: attributes #[[ATTR1:[0-9]+]] = { readnone }
+; TUNIT: attributes #[[ATTR1:[0-9]+]] = { memory(none) }
 ; TUNIT: attributes #[[ATTR2]] = { nounwind }
 ; TUNIT: attributes #[[ATTR3]] = { noreturn nounwind }
 ; TUNIT: attributes #[[ATTR4]] = { noreturn }
-; TUNIT: attributes #[[ATTR5]] = { nosync readnone }
-; TUNIT: attributes #[[ATTR6]] = { argmemonly nofree norecurse nounwind willreturn uwtable }
-; TUNIT: attributes #[[ATTR7]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR8]] = { nofree norecurse noreturn nosync nounwind readnone }
-; TUNIT: attributes #[[ATTR9]] = { nofree nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR5]] = { nosync memory(none) }
+; TUNIT: attributes #[[ATTR6]] = { nofree norecurse nounwind willreturn memory(argmem: readwrite) uwtable }
+; TUNIT: attributes #[[ATTR7]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; TUNIT: attributes #[[ATTR8]] = { nofree norecurse noreturn nosync nounwind memory(none) }
+; TUNIT: attributes #[[ATTR9]] = { nofree nosync nounwind willreturn memory(none) }
 ; TUNIT: attributes #[[ATTR10]] = { nofree nosync nounwind willreturn }
-; TUNIT: attributes #[[ATTR11]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR12:[0-9]+]] = { argmemonly nocallback nofree nosync nounwind willreturn }
+; TUNIT: attributes #[[ATTR11]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR12:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
 ; TUNIT: attributes #[[ATTR13]] = { nounwind willreturn }
 ; TUNIT: attributes #[[ATTR14]] = { willreturn }
 ;.
 ; CGSCC: attributes #[[ATTR0]] = { nofree noreturn nosync nounwind }
-; CGSCC: attributes #[[ATTR1:[0-9]+]] = { readnone }
+; CGSCC: attributes #[[ATTR1:[0-9]+]] = { memory(none) }
 ; CGSCC: attributes #[[ATTR2]] = { nounwind }
 ; CGSCC: attributes #[[ATTR3]] = { noreturn nounwind }
 ; CGSCC: attributes #[[ATTR4]] = { noreturn }
-; CGSCC: attributes #[[ATTR5]] = { nosync readnone }
-; CGSCC: attributes #[[ATTR6]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR7]] = { argmemonly nofree norecurse nounwind willreturn uwtable }
-; CGSCC: attributes #[[ATTR8]] = { nofree norecurse nosync nounwind readnone willreturn uwtable }
-; CGSCC: attributes #[[ATTR9]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR10]] = { nofree norecurse noreturn nosync nounwind readnone }
-; CGSCC: attributes #[[ATTR11]] = { nofree nosync nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR5]] = { nosync memory(none) }
+; CGSCC: attributes #[[ATTR6]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR7]] = { nofree norecurse nounwind willreturn memory(argmem: readwrite) uwtable }
+; CGSCC: attributes #[[ATTR8]] = { nofree norecurse nosync nounwind willreturn memory(none) uwtable }
+; CGSCC: attributes #[[ATTR9]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; CGSCC: attributes #[[ATTR10]] = { nofree norecurse noreturn nosync nounwind memory(none) }
+; CGSCC: attributes #[[ATTR11]] = { nofree nosync nounwind willreturn memory(none) }
 ; CGSCC: attributes #[[ATTR12]] = { nofree nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR13]] = { nounwind readonly }
-; CGSCC: attributes #[[ATTR14:[0-9]+]] = { argmemonly nocallback nofree nosync nounwind willreturn }
+; CGSCC: attributes #[[ATTR13]] = { nounwind memory(read) }
+; CGSCC: attributes #[[ATTR14:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
 ; CGSCC: attributes #[[ATTR15]] = { nounwind willreturn }
-; CGSCC: attributes #[[ATTR16]] = { readnone willreturn }
-; CGSCC: attributes #[[ATTR17]] = { willreturn }
+; CGSCC: attributes #[[ATTR16]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/liveness_chains.ll b/llvm/test/Transforms/Attributor/liveness_chains.ll
index 0f405fa2f7ef4..b7063a02350b0 100644
--- a/llvm/test/Transforms/Attributor/liveness_chains.ll
+++ b/llvm/test/Transforms/Attributor/liveness_chains.ll
@@ -7,7 +7,7 @@
 declare i32 @source() nounwind readonly
 
 define i32 @chain_dead(i32 %arg) {
-; CHECK: Function Attrs: nofree nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@chain_dead
 ; CHECK-SAME: (i32 [[ARG:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:    ret i32 0
@@ -27,10 +27,10 @@ define i32 @chain_dead(i32 %arg) {
 }
 
 define i32 @chain_alive(i32 %arg) {
-; CHECK: Function Attrs: nounwind readonly
+; CHECK: Function Attrs: nounwind memory(read)
 ; CHECK-LABEL: define {{[^@]+}}@chain_alive
 ; CHECK-SAME: (i32 [[ARG:%.*]]) #[[ATTR0:[0-9]+]] {
-; CHECK-NEXT:    [[INIT:%.*]] = call i32 @source() #[[ATTR0]]
+; CHECK-NEXT:    [[INIT:%.*]] = call i32 @source() #[[ATTR2:[0-9]+]]
 ; CHECK-NEXT:    [[V0:%.*]] = add i32 [[ARG]], [[INIT]]
 ; CHECK-NEXT:    [[V1:%.*]] = add i32 [[INIT]], [[V0]]
 ; CHECK-NEXT:    [[V2:%.*]] = add i32 [[V0]], [[V1]]
@@ -57,6 +57,7 @@ define i32 @chain_alive(i32 %arg) {
   ret i32 %v9
 }
 ;.
-; CHECK: attributes #[[ATTR0]] = { nounwind readonly }
-; CHECK: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
+; CHECK: attributes #[[ATTR0]] = { nounwind memory(read) }
+; CHECK: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(none) }
+; CHECK: attributes #[[ATTR2]] = { nounwind }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/lowerheap.ll b/llvm/test/Transforms/Attributor/lowerheap.ll
index d3575911415d8..89790cb678b43 100644
--- a/llvm/test/Transforms/Attributor/lowerheap.ll
+++ b/llvm/test/Transforms/Attributor/lowerheap.ll
@@ -47,6 +47,6 @@ attributes #0 = { nounwind willreturn }
 ; CHECK: attributes #[[ATTR1:[0-9]+]] = { allockind("alloc,uninitialized") allocsize(0) "alloc-family"="malloc" }
 ; CHECK: attributes #[[ATTR2:[0-9]+]] = { allockind("alloc,zeroed") allocsize(0,1) "alloc-family"="malloc" }
 ; CHECK: attributes #[[ATTR3:[0-9]+]] = { allockind("free") "alloc-family"="malloc" }
-; CHECK: attributes #[[ATTR4:[0-9]+]] = { argmemonly nocallback nofree nounwind willreturn writeonly }
+; CHECK: attributes #[[ATTR4:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) }
 ; CHECK: attributes #[[ATTR5]] = { nounwind }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/lvi-after-jumpthreading.ll b/llvm/test/Transforms/Attributor/lvi-after-jumpthreading.ll
index fe2a6e0f64c52..619a18eba47f5 100644
--- a/llvm/test/Transforms/Attributor/lvi-after-jumpthreading.ll
+++ b/llvm/test/Transforms/Attributor/lvi-after-jumpthreading.ll
@@ -3,7 +3,7 @@
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,CGSCC
 
 define i8 @test1(i32 %a, i32 %length) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test1
 ; CHECK-SAME: (i32 [[A:%.*]], i32 [[LENGTH:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -37,7 +37,7 @@ exit:
 }
 
 define i8 @test2(i32 %n) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test2
 ; CHECK-SAME: (i32 [[N:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -185,8 +185,8 @@ declare void @llvm.assume(i1) nounwind
 declare void @dummy(i1) nounwind
 declare void @llvm.experimental.guard(i1, ...)
 ;.
-; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CHECK: attributes #[[ATTR1:[0-9]+]] = { inaccessiblememonly nocallback nofree nosync nounwind willreturn }
+; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CHECK: attributes #[[ATTR1:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite) }
 ; CHECK: attributes #[[ATTR2]] = { nounwind }
 ; CHECK: attributes #[[ATTR3:[0-9]+]] = { nocallback nofree nosync willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/lvi-for-ashr.ll b/llvm/test/Transforms/Attributor/lvi-for-ashr.ll
index ea5618acd201d..23dcc47b943d6 100644
--- a/llvm/test/Transforms/Attributor/lvi-for-ashr.ll
+++ b/llvm/test/Transforms/Attributor/lvi-for-ashr.ll
@@ -5,7 +5,7 @@
 ; FIXME: DOT should be replaced with 3
 
 define i32 @test-ashr(i32 %c) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test-ashr
 ; CHECK-SAME: (i32 [[C:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  chk65:
@@ -49,5 +49,5 @@ return:
   ret i32 %retval
 }
 ;.
-; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/memory_locations.ll b/llvm/test/Transforms/Attributor/memory_locations.ll
index 104aa858e183a..ae1084f8abcb8 100644
--- a/llvm/test/Transforms/Attributor/memory_locations.ll
+++ b/llvm/test/Transforms/Attributor/memory_locations.ll
@@ -11,7 +11,7 @@ declare noalias i8* @malloc(i64) inaccessiblememonly
 ; CHECK: @[[G:[a-zA-Z0-9_$"\\.-]+]] = external dso_local global i32, align 4
 ;.
 define dso_local i8* @internal_only(i32 %arg) {
-; CHECK: Function Attrs: inaccessiblememonly
+; CHECK: Function Attrs: memory(inaccessiblemem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@internal_only
 ; CHECK-SAME: (i32 [[ARG:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -26,7 +26,7 @@ entry:
 }
 
 define dso_local i8* @internal_only_rec(i32 %arg) {
-; CHECK: Function Attrs: inaccessiblememonly
+; CHECK: Function Attrs: memory(inaccessiblemem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@internal_only_rec
 ; CHECK-SAME: (i32 [[ARG:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -66,7 +66,7 @@ return:                                           ; preds = %if.end, %if.then
 }
 
 define dso_local i8* @internal_only_rec_static_helper(i32 %arg) {
-; CHECK: Function Attrs: inaccessiblememonly
+; CHECK: Function Attrs: memory(inaccessiblemem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@internal_only_rec_static_helper
 ; CHECK-SAME: (i32 [[ARG:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -79,7 +79,7 @@ entry:
 }
 
 define internal i8* @internal_only_rec_static(i32 %arg) {
-; CHECK: Function Attrs: inaccessiblememonly
+; CHECK: Function Attrs: memory(inaccessiblemem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@internal_only_rec_static
 ; CHECK-SAME: (i32 [[ARG:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -173,7 +173,7 @@ return:                                           ; preds = %if.end, %if.then
 }
 
 define dso_local i8* @internal_argmem_only_read(i32* %arg) {
-; CHECK: Function Attrs: inaccessiblemem_or_argmemonly
+; CHECK: Function Attrs: memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@internal_argmem_only_read
 ; CHECK-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[ARG:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -190,7 +190,7 @@ entry:
 }
 
 define dso_local i8* @internal_argmem_only_write(i32* %arg) {
-; CHECK: Function Attrs: inaccessiblemem_or_argmemonly
+; CHECK: Function Attrs: memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@internal_argmem_only_write
 ; CHECK-SAME: (i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[ARG:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:  entry:
@@ -205,14 +205,14 @@ entry:
 }
 
 define dso_local i8* @internal_argmem_only_rec(i32* %arg) {
-; TUNIT: Function Attrs: inaccessiblemem_or_argmemonly
+; TUNIT: Function Attrs: memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@internal_argmem_only_rec
 ; TUNIT-SAME: (i32* nocapture nofree [[ARG:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    [[CALL:%.*]] = call noalias i8* @internal_argmem_only_rec_1(i32* nocapture nofree align 4 [[ARG]])
 ; TUNIT-NEXT:    ret i8* [[CALL]]
 ;
-; CGSCC: Function Attrs: inaccessiblemem_or_argmemonly
+; CGSCC: Function Attrs: memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@internal_argmem_only_rec
 ; CGSCC-SAME: (i32* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[ARG:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:  entry:
@@ -225,7 +225,7 @@ entry:
 }
 
 define internal i8* @internal_argmem_only_rec_1(i32* %arg) {
-; CHECK: Function Attrs: inaccessiblemem_or_argmemonly
+; CHECK: Function Attrs: memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@internal_argmem_only_rec_1
 ; CHECK-SAME: (i32* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[ARG:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:  entry:
@@ -281,7 +281,7 @@ return:                                           ; preds = %if.end3, %if.then2,
 }
 
 define internal i8* @internal_argmem_only_rec_2(i32* %arg) {
-; CHECK: Function Attrs: inaccessiblemem_or_argmemonly
+; CHECK: Function Attrs: memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@internal_argmem_only_rec_2
 ; CHECK-SAME: (i32* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[ARG:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:  entry:
@@ -303,7 +303,7 @@ declare i8* @inaccesible_argmem_only_decl(i8* %arg) inaccessiblemem_or_argmemonl
 declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) nounwind argmemonly willreturn
 
 define void @callerA1(i8* %arg) {
-; CHECK: Function Attrs: argmemonly
+; CHECK: Function Attrs: memory(argmem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@callerA1
 ; CHECK-SAME: (i8* [[ARG:%.*]]) #[[ATTR3:[0-9]+]] {
 ; CHECK-NEXT:    [[TMP1:%.*]] = call i8* @argmem_only(i8* [[ARG]])
@@ -313,7 +313,7 @@ define void @callerA1(i8* %arg) {
   ret void
 }
 define void @callerA2(i8* %arg) {
-; CHECK: Function Attrs: inaccessiblemem_or_argmemonly
+; CHECK: Function Attrs: memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@callerA2
 ; CHECK-SAME: (i8* [[ARG:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:    [[TMP1:%.*]] = call i8* @inaccesible_argmem_only_decl(i8* [[ARG]])
@@ -323,7 +323,7 @@ define void @callerA2(i8* %arg) {
   ret void
 }
 define void @callerB1() {
-; CHECK: Function Attrs: readnone
+; CHECK: Function Attrs: memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@callerB1
 ; CHECK-SAME: () #[[ATTR2:[0-9]+]] {
 ; CHECK-NEXT:    [[STACK:%.*]] = alloca i8, align 1
@@ -335,7 +335,7 @@ define void @callerB1() {
   ret void
 }
 define void @callerB2() {
-; CHECK: Function Attrs: inaccessiblememonly
+; CHECK: Function Attrs: memory(inaccessiblemem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@callerB2
 ; CHECK-SAME: () #[[ATTR0]] {
 ; CHECK-NEXT:    [[STACK:%.*]] = alloca i8, align 1
@@ -388,7 +388,7 @@ define void @callerD2() {
 }
 
 define void @callerE(i8* %arg) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@callerE
 ; CHECK-SAME: (i8* nocapture nofree readnone [[ARG:%.*]]) #[[ATTR5:[0-9]+]] {
 ; CHECK-NEXT:    ret void
@@ -399,7 +399,7 @@ define void @callerE(i8* %arg) {
 
 
 define void @write_global() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CHECK-LABEL: define {{[^@]+}}@write_global
 ; CHECK-SAME: () #[[ATTR6:[0-9]+]] {
 ; CHECK-NEXT:    store i32 0, i32* @G, align 4
@@ -409,7 +409,7 @@ define void @write_global() {
   ret void
 }
 define void @write_global_via_arg(i32* %GPtr) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@write_global_via_arg
 ; CHECK-SAME: (i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[GPTR:%.*]]) #[[ATTR7:[0-9]+]] {
 ; CHECK-NEXT:    store i32 0, i32* [[GPTR]], align 4
@@ -419,7 +419,7 @@ define void @write_global_via_arg(i32* %GPtr) {
   ret void
 }
 define internal void @write_global_via_arg_internal(i32* %GPtr) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CHECK-LABEL: define {{[^@]+}}@write_global_via_arg_internal
 ; CHECK-SAME: () #[[ATTR6]] {
 ; CHECK-NEXT:    store i32 0, i32* @G, align 4
@@ -430,13 +430,13 @@ define internal void @write_global_via_arg_internal(i32* %GPtr) {
 }
 
 define void @writeonly_global() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@writeonly_global
 ; TUNIT-SAME: () #[[ATTR6]] {
 ; TUNIT-NEXT:    call void @write_global() #[[ATTR10:[0-9]+]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@writeonly_global
 ; CGSCC-SAME: () #[[ATTR8:[0-9]+]] {
 ; CGSCC-NEXT:    call void @write_global() #[[ATTR11:[0-9]+]]
@@ -446,13 +446,13 @@ define void @writeonly_global() {
   ret void
 }
 define void @writeonly_global_via_arg() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@writeonly_global_via_arg
 ; TUNIT-SAME: () #[[ATTR6]] {
 ; TUNIT-NEXT:    call void @write_global_via_arg(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) @G) #[[ATTR10]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@writeonly_global_via_arg
 ; CGSCC-SAME: () #[[ATTR8]] {
 ; CGSCC-NEXT:    call void @write_global_via_arg(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) @G) #[[ATTR11]]
@@ -464,13 +464,13 @@ define void @writeonly_global_via_arg() {
 
 define void @writeonly_global_via_arg_internal() {
 ;
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@writeonly_global_via_arg_internal
 ; TUNIT-SAME: () #[[ATTR6]] {
 ; TUNIT-NEXT:    call void @write_global_via_arg_internal() #[[ATTR10]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@writeonly_global_via_arg_internal
 ; CGSCC-SAME: () #[[ATTR8]] {
 ; CGSCC-NEXT:    call void @write_global_via_arg_internal() #[[ATTR11]]
@@ -481,7 +481,7 @@ define void @writeonly_global_via_arg_internal() {
 }
 
 define i8 @recursive_not_readnone(i8* %ptr, i1 %c) {
-; TUNIT: Function Attrs: argmemonly nofree nosync nounwind writeonly
+; TUNIT: Function Attrs: nofree nosync nounwind memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@recursive_not_readnone
 ; TUNIT-SAME: (i8* nocapture nofree writeonly [[PTR:%.*]], i1 [[C:%.*]]) #[[ATTR8:[0-9]+]] {
 ; TUNIT-NEXT:    [[ALLOC:%.*]] = alloca i8, align 1
@@ -493,7 +493,7 @@ define i8 @recursive_not_readnone(i8* %ptr, i1 %c) {
 ; TUNIT-NEXT:    store i8 1, i8* [[PTR]], align 1
 ; TUNIT-NEXT:    ret i8 0
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@recursive_not_readnone
 ; CGSCC-SAME: (i8* nocapture nofree writeonly [[PTR:%.*]], i1 [[C:%.*]]) #[[ATTR9:[0-9]+]] {
 ; CGSCC-NEXT:    [[ALLOC:%.*]] = alloca i8, align 1
@@ -517,7 +517,7 @@ f:
 }
 
 define internal i8 @recursive_not_readnone_internal(i8* %ptr, i1 %c) {
-; TUNIT: Function Attrs: argmemonly nofree nosync nounwind writeonly
+; TUNIT: Function Attrs: nofree nosync nounwind memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@recursive_not_readnone_internal
 ; TUNIT-SAME: (i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) [[PTR:%.*]], i1 [[C:%.*]]) #[[ATTR8]] {
 ; TUNIT-NEXT:    [[ALLOC:%.*]] = alloca i8, align 1
@@ -529,7 +529,7 @@ define internal i8 @recursive_not_readnone_internal(i8* %ptr, i1 %c) {
 ; TUNIT-NEXT:    store i8 1, i8* [[PTR]], align 1
 ; TUNIT-NEXT:    ret i8 0
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@recursive_not_readnone_internal
 ; CGSCC-SAME: (i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) [[PTR:%.*]], i1 [[C:%.*]]) #[[ATTR9]] {
 ; CGSCC-NEXT:    [[ALLOC:%.*]] = alloca i8, align 1
@@ -553,14 +553,14 @@ f:
 }
 
 define i8 @readnone_caller(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@readnone_caller
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR9:[0-9]+]] {
 ; TUNIT-NEXT:    [[A:%.*]] = alloca i8, align 1
 ; TUNIT-NEXT:    [[R:%.*]] = call i8 @recursive_not_readnone_internal(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) [[A]], i1 [[C]]) #[[ATTR11]]
 ; TUNIT-NEXT:    ret i8 [[R]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone
+; CGSCC: Function Attrs: nofree nosync nounwind memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@readnone_caller
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR10:[0-9]+]] {
 ; CGSCC-NEXT:    [[A:%.*]] = alloca i8, align 1
@@ -573,7 +573,7 @@ define i8 @readnone_caller(i1 %c) {
 }
 
 define internal i8 @recursive_readnone_internal2(i8* %ptr, i1 %c) {
-; TUNIT: Function Attrs: argmemonly nofree nosync nounwind writeonly
+; TUNIT: Function Attrs: nofree nosync nounwind memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@recursive_readnone_internal2
 ; TUNIT-SAME: (i8* nocapture nofree nonnull writeonly [[PTR:%.*]], i1 [[C:%.*]]) #[[ATTR8]] {
 ; TUNIT-NEXT:    [[ALLOC:%.*]] = alloca i8, align 1
@@ -585,7 +585,7 @@ define internal i8 @recursive_readnone_internal2(i8* %ptr, i1 %c) {
 ; TUNIT-NEXT:    store i8 1, i8* [[PTR]], align 1
 ; TUNIT-NEXT:    ret i8 0
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@recursive_readnone_internal2
 ; CGSCC-SAME: (i8* nocapture nofree nonnull writeonly [[PTR:%.*]], i1 [[C:%.*]]) #[[ATTR9]] {
 ; CGSCC-NEXT:    [[ALLOC:%.*]] = alloca i8, align 1
@@ -609,13 +609,13 @@ f:
 }
 
 define i8 @readnone_caller2(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@readnone_caller2
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR9]] {
 ; TUNIT-NEXT:    [[R:%.*]] = call i8 @recursive_readnone_internal2(i8* undef, i1 [[C]]) #[[ATTR11]]
 ; TUNIT-NEXT:    ret i8 [[R]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone
+; CGSCC: Function Attrs: nofree nosync nounwind memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@readnone_caller2
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR10]] {
 ; CGSCC-NEXT:    [[R:%.*]] = call i8 @recursive_readnone_internal2(i8* undef, i1 [[C]]) #[[ATTR13]]
@@ -626,7 +626,7 @@ define i8 @readnone_caller2(i1 %c) {
 }
 
 define internal i8 @recursive_not_readnone_internal3(i8* %ptr, i1 %c) {
-; TUNIT: Function Attrs: argmemonly nofree nosync nounwind writeonly
+; TUNIT: Function Attrs: nofree nosync nounwind memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@recursive_not_readnone_internal3
 ; TUNIT-SAME: (i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) [[PTR:%.*]], i1 [[C:%.*]]) #[[ATTR8]] {
 ; TUNIT-NEXT:    [[ALLOC:%.*]] = alloca i8, align 1
@@ -638,7 +638,7 @@ define internal i8 @recursive_not_readnone_internal3(i8* %ptr, i1 %c) {
 ; TUNIT-NEXT:    store i8 1, i8* [[PTR]], align 1
 ; TUNIT-NEXT:    ret i8 0
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@recursive_not_readnone_internal3
 ; CGSCC-SAME: (i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) [[PTR:%.*]], i1 [[C:%.*]]) #[[ATTR9]] {
 ; CGSCC-NEXT:    [[ALLOC:%.*]] = alloca i8, align 1
@@ -662,14 +662,14 @@ f:
 }
 
 define i8 @readnone_caller3(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@readnone_caller3
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR9]] {
 ; TUNIT-NEXT:    [[ALLOC:%.*]] = alloca i8, align 1
 ; TUNIT-NEXT:    [[R:%.*]] = call i8 @recursive_not_readnone_internal3(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) [[ALLOC]], i1 [[C]]) #[[ATTR11]]
 ; TUNIT-NEXT:    ret i8 [[R]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone
+; CGSCC: Function Attrs: nofree nosync nounwind memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@readnone_caller3
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR10]] {
 ; CGSCC-NEXT:    [[ALLOC:%.*]] = alloca i8, align 1
@@ -682,7 +682,7 @@ define i8 @readnone_caller3(i1 %c) {
 }
 
 define internal void @argmemonly_before_ipconstprop(i32* %p) argmemonly {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CHECK-LABEL: define {{[^@]+}}@argmemonly_before_ipconstprop
 ; CHECK-SAME: () #[[ATTR6]] {
 ; CHECK-NEXT:    store i32 0, i32* @G, align 4
@@ -693,13 +693,13 @@ define internal void @argmemonly_before_ipconstprop(i32* %p) argmemonly {
 }
 
 define void @argmemonky_caller() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@argmemonky_caller
 ; TUNIT-SAME: () #[[ATTR6]] {
 ; TUNIT-NEXT:    call void @argmemonly_before_ipconstprop() #[[ATTR10]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@argmemonky_caller
 ; CGSCC-SAME: () #[[ATTR8]] {
 ; CGSCC-NEXT:    call void @argmemonly_before_ipconstprop() #[[ATTR11]]
@@ -709,31 +709,31 @@ define void @argmemonky_caller() {
   ret void
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { inaccessiblememonly }
-; TUNIT: attributes #[[ATTR1]] = { inaccessiblemem_or_argmemonly }
-; TUNIT: attributes #[[ATTR2]] = { readnone }
-; TUNIT: attributes #[[ATTR3]] = { argmemonly }
-; TUNIT: attributes #[[ATTR4:[0-9]+]] = { argmemonly nocallback nofree nosync nounwind willreturn }
-; TUNIT: attributes #[[ATTR5]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR6]] = { nofree norecurse nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR7]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR8]] = { argmemonly nofree nosync nounwind writeonly }
-; TUNIT: attributes #[[ATTR9]] = { nofree norecurse nosync nounwind readnone }
-; TUNIT: attributes #[[ATTR10]] = { nofree nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR11]] = { nofree nosync nounwind writeonly }
+; TUNIT: attributes #[[ATTR0]] = { memory(inaccessiblemem: readwrite) }
+; TUNIT: attributes #[[ATTR1]] = { memory(argmem: readwrite, inaccessiblemem: readwrite) }
+; TUNIT: attributes #[[ATTR2]] = { memory(none) }
+; TUNIT: attributes #[[ATTR3]] = { memory(argmem: readwrite) }
+; TUNIT: attributes #[[ATTR4:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
+; TUNIT: attributes #[[ATTR5]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR6]] = { nofree norecurse nosync nounwind willreturn memory(write) }
+; TUNIT: attributes #[[ATTR7]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; TUNIT: attributes #[[ATTR8]] = { nofree nosync nounwind memory(argmem: write) }
+; TUNIT: attributes #[[ATTR9]] = { nofree norecurse nosync nounwind memory(none) }
+; TUNIT: attributes #[[ATTR10]] = { nofree nosync nounwind willreturn }
+; TUNIT: attributes #[[ATTR11]] = { nofree nosync nounwind }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { inaccessiblememonly }
-; CGSCC: attributes #[[ATTR1]] = { inaccessiblemem_or_argmemonly }
-; CGSCC: attributes #[[ATTR2]] = { readnone }
-; CGSCC: attributes #[[ATTR3]] = { argmemonly }
-; CGSCC: attributes #[[ATTR4:[0-9]+]] = { argmemonly nocallback nofree nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR5]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR6]] = { nofree norecurse nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR7]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR8]] = { nofree nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR9]] = { argmemonly nofree nosync nounwind writeonly }
-; CGSCC: attributes #[[ATTR10]] = { nofree nosync nounwind readnone }
-; CGSCC: attributes #[[ATTR11]] = { nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR12]] = { nofree nosync nounwind writeonly }
-; CGSCC: attributes #[[ATTR13]] = { nounwind writeonly }
+; CGSCC: attributes #[[ATTR0]] = { memory(inaccessiblemem: readwrite) }
+; CGSCC: attributes #[[ATTR1]] = { memory(argmem: readwrite, inaccessiblemem: readwrite) }
+; CGSCC: attributes #[[ATTR2]] = { memory(none) }
+; CGSCC: attributes #[[ATTR3]] = { memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR4:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR5]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR6]] = { nofree norecurse nosync nounwind willreturn memory(write) }
+; CGSCC: attributes #[[ATTR7]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; CGSCC: attributes #[[ATTR8]] = { nofree nosync nounwind willreturn memory(write) }
+; CGSCC: attributes #[[ATTR9]] = { nofree nosync nounwind memory(argmem: write) }
+; CGSCC: attributes #[[ATTR10]] = { nofree nosync nounwind memory(none) }
+; CGSCC: attributes #[[ATTR11]] = { nounwind willreturn }
+; CGSCC: attributes #[[ATTR12]] = { nofree nosync nounwind }
+; CGSCC: attributes #[[ATTR13]] = { nounwind }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/misc.ll b/llvm/test/Transforms/Attributor/misc.ll
index c6a09901fb946..44e7f41abb58a 100644
--- a/llvm/test/Transforms/Attributor/misc.ll
+++ b/llvm/test/Transforms/Attributor/misc.ll
@@ -67,7 +67,7 @@ define void @external(void (i8*)* %fp) {
 ; CGSCC-SAME: (void (i8*)* [[FP:%.*]]) {
 ; CGSCC-NEXT:  entry:
 ; CGSCC-NEXT:    [[A:%.*]] = alloca i32, align 4
-; CGSCC-NEXT:    call void @foo(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[A]]) #[[ATTR1]]
+; CGSCC-NEXT:    call void @foo(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[A]]) #[[ATTR2:[0-9]+]]
 ; CGSCC-NEXT:    call void @callback1(void (i32*)* noundef nonnull @foo)
 ; CGSCC-NEXT:    call void @callback2(void (i8*)* noundef bitcast (void (i32*)* @foo to void (i8*)*))
 ; CGSCC-NEXT:    call void @callback2(void (i8*)* [[FP]])
@@ -93,7 +93,7 @@ entry:
 
 define internal void @foo(i32* %a) {
 ;
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@foo
 ; CHECK-SAME: (i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[A:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -108,9 +108,10 @@ entry:
 declare void @callback1(void (i32*)*)
 declare void @callback2(void (i8*)*)
 ;.
-; TUNIT: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn writeonly }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; TUNIT: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR1]] = { nounwind willreturn writeonly }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; CGSCC: attributes #[[ATTR1]] = { nounwind willreturn memory(write) }
+; CGSCC: attributes #[[ATTR2]] = { nounwind willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/misc_crash.ll b/llvm/test/Transforms/Attributor/misc_crash.ll
index ab4fceafe39fb..b28bf102e6bed 100644
--- a/llvm/test/Transforms/Attributor/misc_crash.ll
+++ b/llvm/test/Transforms/Attributor/misc_crash.ll
@@ -9,7 +9,7 @@
 ; CHECK: @[[VAR2:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 0
 ;.
 define i32 addrspace(1)* @foo(i32 addrspace(4)* %arg) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@foo
 ; CHECK-SAME: (i32 addrspace(4)* nofree readnone [[ARG:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -22,7 +22,7 @@ entry:
 }
 
 define i32* @func1() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@func1
 ; CHECK-SAME: () #[[ATTR0]] {
 ; CHECK-NEXT:    ret i32* getelementptr inbounds ([1 x i32], [1 x i32]* @var1, i32 0, i32 0)
@@ -37,7 +37,7 @@ define internal i32* @func1a([1 x i32]* %arg) {
 }
 
 define internal void @func2a(i32* %0) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CHECK-LABEL: define {{[^@]+}}@func2a
 ; CHECK-SAME: (i32* nocapture nofree nonnull writeonly align 4 dereferenceable(4) [[TMP0:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:    store i32 0, i32* @var2, align 4
@@ -118,7 +118,7 @@ define i16 @foo3() {
   ret i16 %call
 }
 define internal i16 @bar3(i16* %p1, i16 %p2) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@bar3
 ; CHECK-SAME: (i16* nocapture nofree readnone [[P1:%.*]], i16 returned [[P2:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    ret i16 [[P2]]
@@ -130,7 +130,7 @@ define internal i16 @bar3(i16* %p1, i16 %p2) {
 ; CHECK-SAME: (i8*)
 declare void @func6(i8*)
 ;.
-; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CHECK: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn writeonly }
+; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CHECK: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(write) }
 ; CHECK: attributes #[[ATTR2]] = { norecurse }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/noalias.ll b/llvm/test/Transforms/Attributor/noalias.ll
index 84140995e4c8a..dcb93fe46cc33 100644
--- a/llvm/test/Transforms/Attributor/noalias.ll
+++ b/llvm/test/Transforms/Attributor/noalias.ll
@@ -43,7 +43,7 @@ define i8* @return_noalias(){
 }
 
 define void @nocapture(i8* %a){
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@nocapture
 ; CHECK-SAME: (i8* nocapture nofree readnone [[A:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    ret void
@@ -159,7 +159,7 @@ declare i8* @baz(...) nounwind uwtable
 
 ; Returning global pointer. Should not be noalias.
 define i8** @getter() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@getter
 ; CHECK-SAME: () #[[ATTR0]] {
 ; CHECK-NEXT:    ret i8** @G
@@ -169,12 +169,12 @@ define i8** @getter() {
 
 ; Returning global pointer. Should not be noalias.
 define i8** @calle1(){
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@calle1
 ; TUNIT-SAME: () #[[ATTR0]] {
 ; TUNIT-NEXT:    ret i8** @G
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@calle1
 ; CGSCC-SAME: () #[[ATTR2:[0-9]+]] {
 ; CGSCC-NEXT:    [[TMP1:%.*]] = call noundef nonnull align 8 dereferenceable(8) i8** @getter() #[[ATTR11:[0-9]+]]
@@ -520,7 +520,7 @@ define void @test13_use_alias(){
 
 ; TEST 14 i2p casts
 define internal i32 @p2i(i32* %arg) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@p2i
 ; CHECK-SAME: (i32* noalias nofree readnone [[ARG:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[P2I:%.*]] = ptrtoint i32* [[ARG]] to i32
@@ -531,22 +531,22 @@ define internal i32 @p2i(i32* %arg) {
 }
 
 define i32 @i2p(i32* %arg) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(read)
 ; TUNIT-LABEL: define {{[^@]+}}@i2p
 ; TUNIT-SAME: (i32* nofree readonly [[ARG:%.*]]) #[[ATTR4:[0-9]+]] {
-; TUNIT-NEXT:    [[C:%.*]] = call i32 @p2i(i32* noalias nofree readnone [[ARG]]) #[[ATTR9:[0-9]+]]
+; TUNIT-NEXT:    [[C:%.*]] = call i32 @p2i(i32* noalias nofree readnone [[ARG]]) #[[ATTR10:[0-9]+]]
 ; TUNIT-NEXT:    [[I2P:%.*]] = inttoptr i32 [[C]] to i8*
 ; TUNIT-NEXT:    [[BC:%.*]] = bitcast i8* [[I2P]] to i32*
-; TUNIT-NEXT:    [[CALL:%.*]] = call i32 @ret(i32* nocapture nofree readonly align 4 [[BC]]) #[[ATTR10:[0-9]+]]
+; TUNIT-NEXT:    [[CALL:%.*]] = call i32 @ret(i32* nocapture nofree readonly align 4 [[BC]]) #[[ATTR10]]
 ; TUNIT-NEXT:    ret i32 [[CALL]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(read)
 ; CGSCC-LABEL: define {{[^@]+}}@i2p
 ; CGSCC-SAME: (i32* nofree readonly [[ARG:%.*]]) #[[ATTR5:[0-9]+]] {
 ; CGSCC-NEXT:    [[C:%.*]] = call i32 @p2i(i32* noalias nofree readnone [[ARG]]) #[[ATTR11]]
 ; CGSCC-NEXT:    [[I2P:%.*]] = inttoptr i32 [[C]] to i8*
 ; CGSCC-NEXT:    [[BC:%.*]] = bitcast i8* [[I2P]] to i32*
-; CGSCC-NEXT:    [[CALL:%.*]] = call i32 @ret(i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[BC]]) #[[ATTR12:[0-9]+]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call i32 @ret(i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[BC]]) #[[ATTR11]]
 ; CGSCC-NEXT:    ret i32 [[CALL]]
 ;
   %c = call i32 @p2i(i32* %arg)
@@ -556,13 +556,13 @@ define i32 @i2p(i32* %arg) {
   ret i32 %call
 }
 define internal i32 @ret(i32* %arg) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; TUNIT-LABEL: define {{[^@]+}}@ret
 ; TUNIT-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[ARG:%.*]]) #[[ATTR5:[0-9]+]] {
 ; TUNIT-NEXT:    [[L:%.*]] = load i32, i32* [[ARG]], align 4
 ; TUNIT-NEXT:    ret i32 [[L]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@ret
 ; CGSCC-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[ARG:%.*]]) #[[ATTR6:[0-9]+]] {
 ; CGSCC-NEXT:    [[L:%.*]] = load i32, i32* [[ARG]], align 4
@@ -599,7 +599,7 @@ define internal fastcc double @strtox(i8* %s, i8** %p, i32 %prec) unnamed_addr {
 ; CGSCC-NEXT:  entry:
 ; CGSCC-NEXT:    [[F:%.*]] = alloca [[STRUCT__IO_FILE:%.*]], align 8
 ; CGSCC-NEXT:    [[TMP0:%.*]] = bitcast %struct._IO_FILE* [[F]] to i8*
-; CGSCC-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 144, i8* nocapture nofree noundef nonnull align 8 dereferenceable(240) [[TMP0]]) #[[ATTR13:[0-9]+]]
+; CGSCC-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 144, i8* nocapture nofree noundef nonnull align 8 dereferenceable(240) [[TMP0]]) #[[ATTR12:[0-9]+]]
 ; CGSCC-NEXT:    [[CALL:%.*]] = call i32 bitcast (i32 (...)* @sh_fromstring to i32 (%struct._IO_FILE*, i8*)*)(%struct._IO_FILE* nonnull align 8 dereferenceable(240) [[F]], i8* [[S]])
 ; CGSCC-NEXT:    call void @__shlim(%struct._IO_FILE* noundef nonnull align 8 dereferenceable(240) [[F]], i64 noundef 0)
 ; CGSCC-NEXT:    [[CALL1:%.*]] = call double @__floatscan(%struct._IO_FILE* noundef nonnull align 8 dereferenceable(240) [[F]], i32 noundef 1, i32 noundef 1)
@@ -652,13 +652,13 @@ declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture)
 @alias_of_p = external global i32*
 
 define void @make_alias(i32* %p) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@make_alias
 ; TUNIT-SAME: (i32* nofree writeonly [[P:%.*]]) #[[ATTR7:[0-9]+]] {
 ; TUNIT-NEXT:    store i32* [[P]], i32** @alias_of_p, align 8
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@make_alias
 ; CGSCC-SAME: (i32* nofree writeonly [[P:%.*]]) #[[ATTR8:[0-9]+]] {
 ; CGSCC-NEXT:    store i32* [[P]], i32** @alias_of_p, align 8
@@ -669,13 +669,13 @@ define void @make_alias(i32* %p) {
 }
 
 define void @only_store(i32* %p) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@only_store
 ; TUNIT-SAME: (i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[P:%.*]]) #[[ATTR8:[0-9]+]] {
 ; TUNIT-NEXT:    store i32 0, i32* [[P]], align 4
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@only_store
 ; CGSCC-SAME: (i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[P:%.*]]) #[[ATTR9:[0-9]+]] {
 ; CGSCC-NEXT:    store i32 0, i32* [[P]], align 4
@@ -686,28 +686,28 @@ define void @only_store(i32* %p) {
 }
 
 define void @test15_caller(i32* noalias %p, i32 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@test15_caller
 ; TUNIT-SAME: (i32* noalias nofree writeonly [[P:%.*]], i32 [[C:%.*]]) #[[ATTR7]] {
 ; TUNIT-NEXT:    [[TOBOOL:%.*]] = icmp eq i32 [[C]], 0
 ; TUNIT-NEXT:    br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
 ; TUNIT:       if.then:
-; TUNIT-NEXT:    tail call void @only_store(i32* noalias nocapture nofree writeonly align 4 [[P]]) #[[ATTR12:[0-9]+]]
+; TUNIT-NEXT:    tail call void @only_store(i32* noalias nocapture nofree writeonly align 4 [[P]]) #[[ATTR10]]
 ; TUNIT-NEXT:    br label [[IF_END]]
 ; TUNIT:       if.end:
-; TUNIT-NEXT:    tail call void @make_alias(i32* nofree writeonly [[P]]) #[[ATTR12]]
+; TUNIT-NEXT:    tail call void @make_alias(i32* nofree writeonly [[P]]) #[[ATTR10]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@test15_caller
 ; CGSCC-SAME: (i32* noalias nofree writeonly [[P:%.*]], i32 [[C:%.*]]) #[[ATTR10:[0-9]+]] {
 ; CGSCC-NEXT:    [[TOBOOL:%.*]] = icmp eq i32 [[C]], 0
 ; CGSCC-NEXT:    br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
 ; CGSCC:       if.then:
-; CGSCC-NEXT:    tail call void @only_store(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[P]]) #[[ATTR14:[0-9]+]]
+; CGSCC-NEXT:    tail call void @only_store(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[P]]) #[[ATTR13:[0-9]+]]
 ; CGSCC-NEXT:    br label [[IF_END]]
 ; CGSCC:       if.end:
-; CGSCC-NEXT:    tail call void @make_alias(i32* nofree writeonly [[P]]) #[[ATTR14]]
+; CGSCC-NEXT:    tail call void @make_alias(i32* nofree writeonly [[P]]) #[[ATTR13]]
 ; CGSCC-NEXT:    ret void
 ;
   %tobool = icmp eq i32 %c, 0
@@ -743,32 +743,32 @@ if.end:
 ;        Therefore, only one of the two conditions of if statementes will be fulfilled.
 
 define internal void @test16_sub(i32* noalias %p, i32 %c1, i32 %c2) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@test16_sub
 ; TUNIT-SAME: (i32* noalias nofree writeonly [[P:%.*]], i32 [[C1:%.*]], i32 [[C2:%.*]]) #[[ATTR7]] {
 ; TUNIT-NEXT:    [[TOBOOL:%.*]] = icmp eq i32 [[C1]], 0
 ; TUNIT-NEXT:    br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
 ; TUNIT:       if.then:
-; TUNIT-NEXT:    tail call void @only_store(i32* noalias nocapture nofree writeonly align 4 [[P]]) #[[ATTR12]]
-; TUNIT-NEXT:    tail call void @make_alias(i32* nofree writeonly align 4 [[P]]) #[[ATTR12]]
+; TUNIT-NEXT:    tail call void @only_store(i32* noalias nocapture nofree writeonly align 4 [[P]]) #[[ATTR10]]
+; TUNIT-NEXT:    tail call void @make_alias(i32* nofree writeonly align 4 [[P]]) #[[ATTR10]]
 ; TUNIT-NEXT:    br label [[IF_END]]
 ; TUNIT:       if.end:
 ; TUNIT-NEXT:    [[TOBOOL1:%.*]] = icmp eq i32 [[C2]], 0
 ; TUNIT-NEXT:    br i1 [[TOBOOL1]], label [[IF_THEN2:%.*]], label [[IF_END3:%.*]]
 ; TUNIT:       if.then2:
-; TUNIT-NEXT:    tail call void @only_store(i32* nocapture nofree writeonly align 4 [[P]]) #[[ATTR12]]
+; TUNIT-NEXT:    tail call void @only_store(i32* nocapture nofree writeonly align 4 [[P]]) #[[ATTR10]]
 ; TUNIT-NEXT:    br label [[IF_END3]]
 ; TUNIT:       if.end3:
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@test16_sub
 ; CGSCC-SAME: (i32* noalias nofree writeonly [[P:%.*]], i32 [[C1:%.*]], i32 [[C2:%.*]]) #[[ATTR10]] {
 ; CGSCC-NEXT:    [[TOBOOL:%.*]] = icmp eq i32 [[C1]], 0
 ; CGSCC-NEXT:    br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
 ; CGSCC:       if.then:
-; CGSCC-NEXT:    tail call void @only_store(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[P]]) #[[ATTR14]]
-; CGSCC-NEXT:    tail call void @make_alias(i32* nofree nonnull writeonly align 4 dereferenceable(4) [[P]]) #[[ATTR14]]
+; CGSCC-NEXT:    tail call void @only_store(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[P]]) #[[ATTR14:[0-9]+]]
+; CGSCC-NEXT:    tail call void @make_alias(i32* nofree nonnull writeonly align 4 dereferenceable(4) [[P]]) #[[ATTR13]]
 ; CGSCC-NEXT:    br label [[IF_END]]
 ; CGSCC:       if.end:
 ; CGSCC-NEXT:    [[TOBOOL1:%.*]] = icmp eq i32 [[C2]], 0
@@ -800,16 +800,16 @@ if.end3:
 }
 
 define void @test16_caller(i32* %p, i32 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@test16_caller
 ; TUNIT-SAME: (i32* nofree writeonly [[P:%.*]], i32 [[C:%.*]]) #[[ATTR7]] {
-; TUNIT-NEXT:    tail call void @test16_sub(i32* noalias nofree writeonly [[P]], i32 [[C]], i32 [[C]]) #[[ATTR12]]
+; TUNIT-NEXT:    tail call void @test16_sub(i32* noalias nofree writeonly [[P]], i32 [[C]], i32 [[C]]) #[[ATTR10]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@test16_caller
 ; CGSCC-SAME: (i32* nofree writeonly [[P:%.*]], i32 [[C:%.*]]) #[[ATTR10]] {
-; CGSCC-NEXT:    tail call void @test16_sub(i32* noalias nofree writeonly [[P]], i32 [[C]], i32 [[C]]) #[[ATTR14]]
+; CGSCC-NEXT:    tail call void @test16_sub(i32* noalias nofree writeonly [[P]], i32 [[C]], i32 [[C]]) #[[ATTR13]]
 ; CGSCC-NEXT:    ret void
 ;
   tail call void @test16_sub(i32* %p, i32 %c, i32 %c)
@@ -836,32 +836,32 @@ define void @test16_caller(i32* %p, i32 %c) {
 ; }
 
 define void @test17_caller(i32* noalias %p, i32 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@test17_caller
 ; TUNIT-SAME: (i32* noalias nofree writeonly [[P:%.*]], i32 [[C:%.*]]) #[[ATTR7]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    [[TOBOOL:%.*]] = icmp eq i32 [[C]], 0
 ; TUNIT-NEXT:    br i1 [[TOBOOL]], label [[L1:%.*]], label [[L2:%.*]]
 ; TUNIT:       l1:
-; TUNIT-NEXT:    tail call void @make_alias(i32* nofree writeonly [[P]]) #[[ATTR12]]
+; TUNIT-NEXT:    tail call void @make_alias(i32* nofree writeonly [[P]]) #[[ATTR10]]
 ; TUNIT-NEXT:    br label [[L3:%.*]]
 ; TUNIT:       l2:
-; TUNIT-NEXT:    tail call void @only_store(i32* nocapture nofree writeonly align 4 [[P]]) #[[ATTR12]]
+; TUNIT-NEXT:    tail call void @only_store(i32* nocapture nofree writeonly align 4 [[P]]) #[[ATTR10]]
 ; TUNIT-NEXT:    br label [[L3]]
 ; TUNIT:       l3:
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@test17_caller
 ; CGSCC-SAME: (i32* noalias nofree writeonly [[P:%.*]], i32 [[C:%.*]]) #[[ATTR10]] {
 ; CGSCC-NEXT:  entry:
 ; CGSCC-NEXT:    [[TOBOOL:%.*]] = icmp eq i32 [[C]], 0
 ; CGSCC-NEXT:    br i1 [[TOBOOL]], label [[L1:%.*]], label [[L2:%.*]]
 ; CGSCC:       l1:
-; CGSCC-NEXT:    tail call void @make_alias(i32* nofree writeonly [[P]]) #[[ATTR14]]
+; CGSCC-NEXT:    tail call void @make_alias(i32* nofree writeonly [[P]]) #[[ATTR13]]
 ; CGSCC-NEXT:    br label [[L3:%.*]]
 ; CGSCC:       l2:
-; CGSCC-NEXT:    tail call void @only_store(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[P]]) #[[ATTR14]]
+; CGSCC-NEXT:    tail call void @only_store(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[P]]) #[[ATTR13]]
 ; CGSCC-NEXT:    br label [[L3]]
 ; CGSCC:       l3:
 ; CGSCC-NEXT:    ret void
@@ -894,12 +894,12 @@ l3:
 ; }
 
 define void @noreturn() {
-; TUNIT: Function Attrs: nofree nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@noreturn
-; TUNIT-SAME: () #[[ATTR9]] {
+; TUNIT-SAME: () #[[ATTR9:[0-9]+]] {
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@noreturn
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    ret void
@@ -909,30 +909,30 @@ define void @noreturn() {
 }
 
 define void @test18_caller(i32* noalias %p, i32 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@test18_caller
 ; TUNIT-SAME: (i32* noalias nofree writeonly [[P:%.*]], i32 [[C:%.*]]) #[[ATTR7]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    [[TOBOOL:%.*]] = icmp eq i32 [[C]], 0
 ; TUNIT-NEXT:    br i1 [[TOBOOL]], label [[L1:%.*]], label [[L2:%.*]]
 ; TUNIT:       l1:
-; TUNIT-NEXT:    tail call void @make_alias(i32* nofree writeonly [[P]]) #[[ATTR12]]
+; TUNIT-NEXT:    tail call void @make_alias(i32* nofree writeonly [[P]]) #[[ATTR10]]
 ; TUNIT-NEXT:    br label [[L2]]
 ; TUNIT:       l2:
-; TUNIT-NEXT:    tail call void @only_store(i32* nocapture nofree writeonly align 4 [[P]]) #[[ATTR12]]
+; TUNIT-NEXT:    tail call void @only_store(i32* nocapture nofree writeonly align 4 [[P]]) #[[ATTR10]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@test18_caller
 ; CGSCC-SAME: (i32* noalias nofree nonnull writeonly align 4 dereferenceable(4) [[P:%.*]], i32 [[C:%.*]]) #[[ATTR10]] {
 ; CGSCC-NEXT:  entry:
 ; CGSCC-NEXT:    [[TOBOOL:%.*]] = icmp eq i32 [[C]], 0
 ; CGSCC-NEXT:    br i1 [[TOBOOL]], label [[L1:%.*]], label [[L2:%.*]]
 ; CGSCC:       l1:
-; CGSCC-NEXT:    tail call void @make_alias(i32* nofree nonnull writeonly align 4 dereferenceable(4) [[P]]) #[[ATTR14]]
+; CGSCC-NEXT:    tail call void @make_alias(i32* nofree nonnull writeonly align 4 dereferenceable(4) [[P]]) #[[ATTR13]]
 ; CGSCC-NEXT:    br label [[L2]]
 ; CGSCC:       l2:
-; CGSCC-NEXT:    tail call void @only_store(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[P]]) #[[ATTR14]]
+; CGSCC-NEXT:    tail call void @only_store(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[P]]) #[[ATTR13]]
 ; CGSCC-NEXT:    ret void
 ;
 entry:
@@ -949,33 +949,32 @@ l2:
   ret void
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ; TUNIT: attributes #[[ATTR1]] = { nounwind uwtable }
 ; TUNIT: attributes #[[ATTR2]] = { nounwind }
 ; TUNIT: attributes #[[ATTR3]] = { nounwind ssp uwtable }
-; TUNIT: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind readonly willreturn }
-; TUNIT: attributes #[[ATTR5]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; TUNIT: attributes #[[ATTR6:[0-9]+]] = { argmemonly nocallback nofree nosync nounwind willreturn }
-; TUNIT: attributes #[[ATTR7]] = { nofree norecurse nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR8]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR9]] = { nofree nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR10]] = { nofree nosync nounwind readonly willreturn }
-; TUNIT: attributes #[[ATTR11]] = { willreturn }
-; TUNIT: attributes #[[ATTR12]] = { nofree nosync nounwind willreturn writeonly }
+; TUNIT: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind willreturn memory(read) }
+; TUNIT: attributes #[[ATTR5]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; TUNIT: attributes #[[ATTR6:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
+; TUNIT: attributes #[[ATTR7]] = { nofree norecurse nosync nounwind willreturn memory(write) }
+; TUNIT: attributes #[[ATTR8]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; TUNIT: attributes #[[ATTR9]] = { nofree nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR10]] = { nofree nosync nounwind willreturn }
+; TUNIT: attributes #[[ATTR11]] = { willreturn memory(readwrite) }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ; CGSCC: attributes #[[ATTR1]] = { nounwind uwtable }
-; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn memory(none) }
 ; CGSCC: attributes #[[ATTR3]] = { nounwind }
 ; CGSCC: attributes #[[ATTR4]] = { nounwind ssp uwtable }
-; CGSCC: attributes #[[ATTR5]] = { nofree nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR6]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR7:[0-9]+]] = { argmemonly nocallback nofree nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR8]] = { nofree norecurse nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR9]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR10]] = { nofree nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR11]] = { readnone willreturn }
-; CGSCC: attributes #[[ATTR12]] = { readonly willreturn }
-; CGSCC: attributes #[[ATTR13]] = { willreturn }
-; CGSCC: attributes #[[ATTR14]] = { nounwind willreturn writeonly }
+; CGSCC: attributes #[[ATTR5]] = { nofree nosync nounwind willreturn memory(read) }
+; CGSCC: attributes #[[ATTR6]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; CGSCC: attributes #[[ATTR7:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR8]] = { nofree norecurse nosync nounwind willreturn memory(write) }
+; CGSCC: attributes #[[ATTR9]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; CGSCC: attributes #[[ATTR10]] = { nofree nosync nounwind willreturn memory(write) }
+; CGSCC: attributes #[[ATTR11]] = { willreturn }
+; CGSCC: attributes #[[ATTR12]] = { willreturn memory(readwrite) }
+; CGSCC: attributes #[[ATTR13]] = { nounwind willreturn }
+; CGSCC: attributes #[[ATTR14]] = { nounwind willreturn memory(write) }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/nocapture-1.ll b/llvm/test/Transforms/Attributor/nocapture-1.ll
index 49c17d61575fc..2e0f702792fd0 100644
--- a/llvm/test/Transforms/Attributor/nocapture-1.ll
+++ b/llvm/test/Transforms/Attributor/nocapture-1.ll
@@ -11,7 +11,7 @@
 ; CHECK: @[[G3:[a-zA-Z0-9_$"\\.-]+]] = global i8* null
 ;.
 define i32* @c1(i32* %q) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@c1
 ; CHECK-SAME: (i32* nofree readnone returned "no-capture-maybe-returned" [[Q:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    ret i32* [[Q]]
@@ -21,7 +21,7 @@ define i32* @c1(i32* %q) {
 
 ; It would also be acceptable to mark %q as readnone. Update @c3 too.
 define void @c2(i32* %q) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CHECK-LABEL: define {{[^@]+}}@c2
 ; CHECK-SAME: (i32* nofree writeonly [[Q:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:    store i32* [[Q]], i32** @g, align 8
@@ -32,16 +32,16 @@ define void @c2(i32* %q) {
 }
 
 define void @c3(i32* %q) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@c3
 ; TUNIT-SAME: (i32* nofree writeonly [[Q:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    call void @c2(i32* nofree writeonly [[Q]]) #[[ATTR14:[0-9]+]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@c3
 ; CGSCC-SAME: (i32* nofree writeonly [[Q:%.*]]) #[[ATTR2:[0-9]+]] {
-; CGSCC-NEXT:    call void @c2(i32* nofree writeonly [[Q]]) #[[ATTR17:[0-9]+]]
+; CGSCC-NEXT:    call void @c2(i32* nofree writeonly [[Q]]) #[[ATTR14:[0-9]+]]
 ; CGSCC-NEXT:    ret void
 ;
   call void @c2(i32* %q)
@@ -49,7 +49,7 @@ define void @c3(i32* %q) {
 }
 
 define i1 @c4(i32* %q, i32 %bitno) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@c4
 ; CHECK-SAME: (i32* nofree readnone [[Q:%.*]], i32 [[BITNO:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[TMP:%.*]] = ptrtoint i32* [[Q]] to i32
@@ -73,7 +73,7 @@ l1:
 
 ; c4b is c4 but without the escaping part
 define i1 @c4b(i32* %q, i32 %bitno) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@c4b
 ; CHECK-SAME: (i32* nocapture nofree readnone [[Q:%.*]], i32 [[BITNO:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[TMP:%.*]] = ptrtoint i32* [[Q]] to i32
@@ -98,7 +98,7 @@ l1:
 @lookup_table = global [2 x i1] [ i1 0, i1 1 ]
 
 define i1 @c5(i32* %q, i32 %bitno) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(read)
 ; TUNIT-LABEL: define {{[^@]+}}@c5
 ; TUNIT-SAME: (i32* nofree readonly [[Q:%.*]], i32 [[BITNO:%.*]]) #[[ATTR2:[0-9]+]] {
 ; TUNIT-NEXT:    [[TMP:%.*]] = ptrtoint i32* [[Q]] to i32
@@ -108,7 +108,7 @@ define i1 @c5(i32* %q, i32 %bitno) {
 ; TUNIT-NEXT:    [[VAL:%.*]] = load i1, i1* [[LOOKUP]], align 1
 ; TUNIT-NEXT:    ret i1 [[VAL]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(read)
 ; CGSCC-LABEL: define {{[^@]+}}@c5
 ; CGSCC-SAME: (i32* nofree readonly [[Q:%.*]], i32 [[BITNO:%.*]]) #[[ATTR3:[0-9]+]] {
 ; CGSCC-NEXT:    [[TMP:%.*]] = ptrtoint i32* [[Q]] to i32
@@ -130,10 +130,10 @@ define i1 @c5(i32* %q, i32 %bitno) {
 declare void @throw_if_bit_set(i8*, i8) readonly
 
 define i1 @c6(i8* %q, i8 %bit) personality i32 (...)* @__gxx_personality_v0 {
-; TUNIT: Function Attrs: nounwind readonly
+; TUNIT: Function Attrs: nounwind memory(read)
 ; TUNIT-LABEL: define {{[^@]+}}@c6
 ; TUNIT-SAME: (i8* readonly [[Q:%.*]], i8 [[BIT:%.*]]) #[[ATTR4:[0-9]+]] personality i32 (...)* @__gxx_personality_v0 {
-; TUNIT-NEXT:    invoke void @throw_if_bit_set(i8* readonly [[Q]], i8 [[BIT]]) #[[ATTR3:[0-9]+]]
+; TUNIT-NEXT:    invoke void @throw_if_bit_set(i8* readonly [[Q]], i8 [[BIT]])
 ; TUNIT-NEXT:    to label [[RET0:%.*]] unwind label [[RET1:%.*]]
 ; TUNIT:       ret0:
 ; TUNIT-NEXT:    ret i1 false
@@ -142,10 +142,10 @@ define i1 @c6(i8* %q, i8 %bit) personality i32 (...)* @__gxx_personality_v0 {
 ; TUNIT-NEXT:    cleanup
 ; TUNIT-NEXT:    ret i1 true
 ;
-; CGSCC: Function Attrs: nounwind readonly
+; CGSCC: Function Attrs: nounwind memory(read)
 ; CGSCC-LABEL: define {{[^@]+}}@c6
 ; CGSCC-SAME: (i8* readonly [[Q:%.*]], i8 [[BIT:%.*]]) #[[ATTR5:[0-9]+]] personality i32 (...)* @__gxx_personality_v0 {
-; CGSCC-NEXT:    invoke void @throw_if_bit_set(i8* readonly [[Q]], i8 [[BIT]]) #[[ATTR4:[0-9]+]]
+; CGSCC-NEXT:    invoke void @throw_if_bit_set(i8* readonly [[Q]], i8 [[BIT]])
 ; CGSCC-NEXT:    to label [[RET0:%.*]] unwind label [[RET1:%.*]]
 ; CGSCC:       ret0:
 ; CGSCC-NEXT:    ret i1 false
@@ -167,7 +167,7 @@ ret1:
 declare i32 @__gxx_personality_v0(...)
 
 define i1* @lookup_bit(i32* %q, i32 %bitno) readnone nounwind {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@lookup_bit
 ; CHECK-SAME: (i32* nofree readnone [[Q:%.*]], i32 [[BITNO:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[TMP:%.*]] = ptrtoint i32* [[Q]] to i32
@@ -184,17 +184,17 @@ define i1* @lookup_bit(i32* %q, i32 %bitno) readnone nounwind {
 }
 
 define i1 @c7(i32* %q, i32 %bitno) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(read)
 ; TUNIT-LABEL: define {{[^@]+}}@c7
 ; TUNIT-SAME: (i32* nofree readonly [[Q:%.*]], i32 [[BITNO:%.*]]) #[[ATTR2]] {
 ; TUNIT-NEXT:    [[PTR:%.*]] = call i1* @lookup_bit(i32* noalias nofree readnone [[Q]], i32 [[BITNO]]) #[[ATTR15:[0-9]+]]
 ; TUNIT-NEXT:    [[VAL:%.*]] = load i1, i1* [[PTR]], align 1
 ; TUNIT-NEXT:    ret i1 [[VAL]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(read)
 ; CGSCC-LABEL: define {{[^@]+}}@c7
 ; CGSCC-SAME: (i32* nofree readonly [[Q:%.*]], i32 [[BITNO:%.*]]) #[[ATTR6:[0-9]+]] {
-; CGSCC-NEXT:    [[PTR:%.*]] = call i1* @lookup_bit(i32* noalias nofree readnone [[Q]], i32 [[BITNO]]) #[[ATTR18:[0-9]+]]
+; CGSCC-NEXT:    [[PTR:%.*]] = call i1* @lookup_bit(i32* noalias nofree readnone [[Q]], i32 [[BITNO]]) #[[ATTR17:[0-9]+]]
 ; CGSCC-NEXT:    [[VAL:%.*]] = load i1, i1* [[PTR]], align 1
 ; CGSCC-NEXT:    ret i1 [[VAL]]
 ;
@@ -292,13 +292,13 @@ define void @nc2(i32* %p, i32* %q) {
 ; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn
 ; TUNIT-LABEL: define {{[^@]+}}@nc2
 ; TUNIT-SAME: (i32* nocapture nofree [[P:%.*]], i32* nofree [[Q:%.*]]) #[[ATTR5]] {
-; TUNIT-NEXT:    [[TMP1:%.*]] = call i32 @nc1(i32* nofree [[Q]], i32* nocapture nofree [[P]], i1 noundef false) #[[ATTR16:[0-9]+]]
+; TUNIT-NEXT:    [[TMP1:%.*]] = call i32 @nc1(i32* nofree [[Q]], i32* nocapture nofree [[P]], i1 noundef false) #[[ATTR14]]
 ; TUNIT-NEXT:    ret void
 ;
 ; CGSCC: Function Attrs: nofree nosync nounwind willreturn
 ; CGSCC-LABEL: define {{[^@]+}}@nc2
 ; CGSCC-SAME: (i32* nocapture nofree align 4 [[P:%.*]], i32* nofree [[Q:%.*]]) #[[ATTR8:[0-9]+]] {
-; CGSCC-NEXT:    [[TMP1:%.*]] = call i32 @nc1(i32* nofree [[Q]], i32* nocapture nofree align 4 [[P]], i1 noundef false) #[[ATTR14:[0-9]+]]
+; CGSCC-NEXT:    [[TMP1:%.*]] = call i32 @nc1(i32* nofree [[Q]], i32* nocapture nofree align 4 [[P]], i1 noundef false) #[[ATTR14]]
 ; CGSCC-NEXT:    ret void
 ;
   %1 = call i32 @nc1(i32* %q, i32* %p, i1 0)		; <i32> [#uses=0]
@@ -320,16 +320,16 @@ define void @nc3(void ()* %p) {
 ; FIXME: readonly and nocapture missing on the pointer.
 declare void @external(i8* readonly) nounwind argmemonly
 define void @nc4(i8* %p) {
-; TUNIT: Function Attrs: argmemonly nounwind
+; TUNIT: Function Attrs: nounwind memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@nc4
 ; TUNIT-SAME: (i8* [[P:%.*]]) #[[ATTR6:[0-9]+]] {
-; TUNIT-NEXT:    call void @external(i8* readonly [[P]]) #[[ATTR17:[0-9]+]]
+; TUNIT-NEXT:    call void @external(i8* readonly [[P]]) #[[ATTR16:[0-9]+]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nounwind
+; CGSCC: Function Attrs: nounwind memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@nc4
 ; CGSCC-SAME: (i8* [[P:%.*]]) #[[ATTR9:[0-9]+]] {
-; CGSCC-NEXT:    call void @external(i8* readonly [[P]]) #[[ATTR19:[0-9]+]]
+; CGSCC-NEXT:    call void @external(i8* readonly [[P]]) #[[ATTR18:[0-9]+]]
 ; CGSCC-NEXT:    ret void
 ;
   call void @external(i8* %p)
@@ -349,17 +349,17 @@ define void @nc5(void (i8*)* %f, i8* %p) {
 
 ; It would be acceptable to add readnone to %y1_1 and %y1_2.
 define void @test1_1(i8* %x1_1, i8* %y1_1, i1 %c) {
-; TUNIT: Function Attrs: nofree nosync nounwind writeonly
+; TUNIT: Function Attrs: nofree nosync nounwind memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@test1_1
 ; TUNIT-SAME: (i8* nocapture nofree readnone [[X1_1:%.*]], i8* nocapture nofree readnone [[Y1_1:%.*]], i1 [[C:%.*]]) #[[ATTR7:[0-9]+]] {
-; TUNIT-NEXT:    [[TMP1:%.*]] = call i8* @test1_2(i8* noalias nocapture nofree readnone undef, i8* noalias nofree readnone "no-capture-maybe-returned" [[Y1_1]], i1 [[C]]) #[[ATTR7]]
+; TUNIT-NEXT:    [[TMP1:%.*]] = call i8* @test1_2(i8* noalias nocapture nofree readnone undef, i8* noalias nofree readnone "no-capture-maybe-returned" [[Y1_1]], i1 [[C]]) #[[ATTR17:[0-9]+]]
 ; TUNIT-NEXT:    store i32* null, i32** @g, align 8
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@test1_1
 ; CGSCC-SAME: (i8* nocapture nofree readnone [[X1_1:%.*]], i8* nocapture nofree readnone [[Y1_1:%.*]], i1 [[C:%.*]]) #[[ATTR10:[0-9]+]] {
-; CGSCC-NEXT:    [[TMP1:%.*]] = call i8* @test1_2(i8* noalias nocapture nofree readnone undef, i8* noalias nofree readnone "no-capture-maybe-returned" [[Y1_1]], i1 [[C]]) #[[ATTR10]]
+; CGSCC-NEXT:    [[TMP1:%.*]] = call i8* @test1_2(i8* noalias nocapture nofree readnone undef, i8* noalias nofree readnone "no-capture-maybe-returned" [[Y1_1]], i1 [[C]]) #[[ATTR19:[0-9]+]]
 ; CGSCC-NEXT:    store i32* null, i32** @g, align 8
 ; CGSCC-NEXT:    ret void
 ;
@@ -369,23 +369,23 @@ define void @test1_1(i8* %x1_1, i8* %y1_1, i1 %c) {
 }
 
 define i8* @test1_2(i8* %x1_2, i8* %y1_2, i1 %c) {
-; TUNIT: Function Attrs: nofree nosync nounwind writeonly
+; TUNIT: Function Attrs: nofree nosync nounwind memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@test1_2
 ; TUNIT-SAME: (i8* nocapture nofree readnone [[X1_2:%.*]], i8* nofree readnone returned "no-capture-maybe-returned" [[Y1_2:%.*]], i1 [[C:%.*]]) #[[ATTR7]] {
 ; TUNIT-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; TUNIT:       t:
-; TUNIT-NEXT:    call void @test1_1(i8* noalias nocapture nofree readnone undef, i8* noalias nocapture nofree readnone [[Y1_2]], i1 noundef [[C]]) #[[ATTR7]]
+; TUNIT-NEXT:    call void @test1_1(i8* noalias nocapture nofree readnone undef, i8* noalias nocapture nofree readnone [[Y1_2]], i1 noundef [[C]]) #[[ATTR17]]
 ; TUNIT-NEXT:    store i32* null, i32** @g, align 8
 ; TUNIT-NEXT:    br label [[F]]
 ; TUNIT:       f:
 ; TUNIT-NEXT:    ret i8* [[Y1_2]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@test1_2
 ; CGSCC-SAME: (i8* nocapture nofree readnone [[X1_2:%.*]], i8* nofree readnone returned "no-capture-maybe-returned" [[Y1_2:%.*]], i1 [[C:%.*]]) #[[ATTR10]] {
 ; CGSCC-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; CGSCC:       t:
-; CGSCC-NEXT:    call void @test1_1(i8* noalias nocapture nofree readnone undef, i8* noalias nocapture nofree readnone [[Y1_2]], i1 noundef [[C]]) #[[ATTR10]]
+; CGSCC-NEXT:    call void @test1_1(i8* noalias nocapture nofree readnone undef, i8* noalias nocapture nofree readnone [[Y1_2]], i1 noundef [[C]]) #[[ATTR19]]
 ; CGSCC-NEXT:    store i32* null, i32** @g, align 8
 ; CGSCC-NEXT:    br label [[F]]
 ; CGSCC:       f:
@@ -401,17 +401,17 @@ f:
 }
 
 define void @test2(i8* %x2) {
-; TUNIT: Function Attrs: nofree nosync nounwind writeonly
+; TUNIT: Function Attrs: nofree nosync nounwind memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@test2
 ; TUNIT-SAME: (i8* nocapture nofree readnone [[X2:%.*]]) #[[ATTR7]] {
-; TUNIT-NEXT:    call void @test2(i8* noalias nocapture nofree readnone undef) #[[ATTR7]]
+; TUNIT-NEXT:    call void @test2(i8* noalias nocapture nofree readnone undef) #[[ATTR17]]
 ; TUNIT-NEXT:    store i32* null, i32** @g, align 8
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@test2
 ; CGSCC-SAME: (i8* nocapture nofree readnone [[X2:%.*]]) #[[ATTR10]] {
-; CGSCC-NEXT:    call void @test2(i8* noalias nocapture nofree readnone undef) #[[ATTR10]]
+; CGSCC-NEXT:    call void @test2(i8* noalias nocapture nofree readnone undef) #[[ATTR19]]
 ; CGSCC-NEXT:    store i32* null, i32** @g, align 8
 ; CGSCC-NEXT:    ret void
 ;
@@ -421,17 +421,17 @@ define void @test2(i8* %x2) {
 }
 
 define void @test3(i8* %x3, i8* %y3, i8* %z3) {
-; TUNIT: Function Attrs: nofree nosync nounwind writeonly
+; TUNIT: Function Attrs: nofree nosync nounwind memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@test3
 ; TUNIT-SAME: (i8* nocapture nofree readnone [[X3:%.*]], i8* nocapture nofree readnone [[Y3:%.*]], i8* nocapture nofree readnone [[Z3:%.*]]) #[[ATTR7]] {
-; TUNIT-NEXT:    call void @test3(i8* noalias nocapture nofree readnone undef, i8* noalias nocapture nofree readnone undef, i8* noalias nocapture nofree readnone undef) #[[ATTR7]]
+; TUNIT-NEXT:    call void @test3(i8* noalias nocapture nofree readnone undef, i8* noalias nocapture nofree readnone undef, i8* noalias nocapture nofree readnone undef) #[[ATTR17]]
 ; TUNIT-NEXT:    store i32* null, i32** @g, align 8
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@test3
 ; CGSCC-SAME: (i8* nocapture nofree readnone [[X3:%.*]], i8* nocapture nofree readnone [[Y3:%.*]], i8* nocapture nofree readnone [[Z3:%.*]]) #[[ATTR10]] {
-; CGSCC-NEXT:    call void @test3(i8* noalias nocapture nofree readnone undef, i8* noalias nocapture nofree readnone undef, i8* noalias nocapture nofree readnone undef) #[[ATTR10]]
+; CGSCC-NEXT:    call void @test3(i8* noalias nocapture nofree readnone undef, i8* noalias nocapture nofree readnone undef, i8* noalias nocapture nofree readnone undef) #[[ATTR19]]
 ; CGSCC-NEXT:    store i32* null, i32** @g, align 8
 ; CGSCC-NEXT:    ret void
 ;
@@ -441,17 +441,17 @@ define void @test3(i8* %x3, i8* %y3, i8* %z3) {
 }
 
 define void @test4_1(i8* %x4_1, i1 %c) {
-; TUNIT: Function Attrs: nofree nosync nounwind writeonly
+; TUNIT: Function Attrs: nofree nosync nounwind memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@test4_1
 ; TUNIT-SAME: (i8* nocapture nofree readnone [[X4_1:%.*]], i1 [[C:%.*]]) #[[ATTR7]] {
-; TUNIT-NEXT:    [[TMP1:%.*]] = call i8* @test4_2(i8* noalias nocapture nofree readnone undef, i8* noalias nofree readnone "no-capture-maybe-returned" [[X4_1]], i8* noalias nocapture nofree readnone undef, i1 [[C]]) #[[ATTR7]]
+; TUNIT-NEXT:    [[TMP1:%.*]] = call i8* @test4_2(i8* noalias nocapture nofree readnone undef, i8* noalias nofree readnone "no-capture-maybe-returned" [[X4_1]], i8* noalias nocapture nofree readnone undef, i1 [[C]]) #[[ATTR17]]
 ; TUNIT-NEXT:    store i32* null, i32** @g, align 8
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@test4_1
 ; CGSCC-SAME: (i8* nocapture nofree readnone [[X4_1:%.*]], i1 [[C:%.*]]) #[[ATTR10]] {
-; CGSCC-NEXT:    [[TMP1:%.*]] = call i8* @test4_2(i8* noalias nocapture nofree readnone undef, i8* noalias nofree readnone "no-capture-maybe-returned" [[X4_1]], i8* noalias nocapture nofree readnone undef, i1 [[C]]) #[[ATTR10]]
+; CGSCC-NEXT:    [[TMP1:%.*]] = call i8* @test4_2(i8* noalias nocapture nofree readnone undef, i8* noalias nofree readnone "no-capture-maybe-returned" [[X4_1]], i8* noalias nocapture nofree readnone undef, i1 [[C]]) #[[ATTR19]]
 ; CGSCC-NEXT:    store i32* null, i32** @g, align 8
 ; CGSCC-NEXT:    ret void
 ;
@@ -461,23 +461,23 @@ define void @test4_1(i8* %x4_1, i1 %c) {
 }
 
 define i8* @test4_2(i8* %x4_2, i8* %y4_2, i8* %z4_2, i1 %c) {
-; TUNIT: Function Attrs: nofree nosync nounwind writeonly
+; TUNIT: Function Attrs: nofree nosync nounwind memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@test4_2
 ; TUNIT-SAME: (i8* nocapture nofree readnone [[X4_2:%.*]], i8* nofree readnone returned "no-capture-maybe-returned" [[Y4_2:%.*]], i8* nocapture nofree readnone [[Z4_2:%.*]], i1 [[C:%.*]]) #[[ATTR7]] {
 ; TUNIT-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; TUNIT:       t:
-; TUNIT-NEXT:    call void @test4_1(i8* noalias nocapture nofree noundef readnone align 4294967296 null, i1 noundef [[C]]) #[[ATTR7]]
+; TUNIT-NEXT:    call void @test4_1(i8* noalias nocapture nofree noundef readnone align 4294967296 null, i1 noundef [[C]]) #[[ATTR17]]
 ; TUNIT-NEXT:    store i32* null, i32** @g, align 8
 ; TUNIT-NEXT:    br label [[F]]
 ; TUNIT:       f:
 ; TUNIT-NEXT:    ret i8* [[Y4_2]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@test4_2
 ; CGSCC-SAME: (i8* nocapture nofree readnone [[X4_2:%.*]], i8* nofree readnone returned "no-capture-maybe-returned" [[Y4_2:%.*]], i8* nocapture nofree readnone [[Z4_2:%.*]], i1 [[C:%.*]]) #[[ATTR10]] {
 ; CGSCC-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; CGSCC:       t:
-; CGSCC-NEXT:    call void @test4_1(i8* noalias nocapture nofree noundef readnone align 4294967296 null, i1 noundef [[C]]) #[[ATTR10]]
+; CGSCC-NEXT:    call void @test4_1(i8* noalias nocapture nofree noundef readnone align 4294967296 null, i1 noundef [[C]]) #[[ATTR19]]
 ; CGSCC-NEXT:    store i32* null, i32** @g, align 8
 ; CGSCC-NEXT:    br label [[F]]
 ; CGSCC:       f:
@@ -521,13 +521,13 @@ define void @test6_2(i8* %x6_2, i8* %y6_2, i8* %z6_2) {
 }
 
 define void @test_cmpxchg(i32* %p) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nounwind willreturn memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@test_cmpxchg
 ; TUNIT-SAME: (i32* nocapture nofree noundef nonnull dereferenceable(4) [[P:%.*]]) #[[ATTR8:[0-9]+]] {
 ; TUNIT-NEXT:    [[TMP1:%.*]] = cmpxchg i32* [[P]], i32 0, i32 1 acquire monotonic, align 4
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@test_cmpxchg
 ; CGSCC-SAME: (i32* nocapture nofree noundef nonnull dereferenceable(4) [[P:%.*]]) #[[ATTR11:[0-9]+]] {
 ; CGSCC-NEXT:    [[TMP1:%.*]] = cmpxchg i32* [[P]], i32 0, i32 1 acquire monotonic, align 4
@@ -538,13 +538,13 @@ define void @test_cmpxchg(i32* %p) {
 }
 
 define void @test_cmpxchg_ptr(i32** %p, i32* %q) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nounwind willreturn memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@test_cmpxchg_ptr
 ; TUNIT-SAME: (i32** nocapture nofree noundef nonnull dereferenceable(8) [[P:%.*]], i32* nofree [[Q:%.*]]) #[[ATTR8]] {
 ; TUNIT-NEXT:    [[TMP1:%.*]] = cmpxchg i32** [[P]], i32* null, i32* [[Q]] acquire monotonic, align 8
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@test_cmpxchg_ptr
 ; CGSCC-SAME: (i32** nocapture nofree noundef nonnull dereferenceable(8) [[P:%.*]], i32* nofree [[Q:%.*]]) #[[ATTR11]] {
 ; CGSCC-NEXT:    [[TMP1:%.*]] = cmpxchg i32** [[P]], i32* null, i32* [[Q]] acquire monotonic, align 8
@@ -555,13 +555,13 @@ define void @test_cmpxchg_ptr(i32** %p, i32* %q) {
 }
 
 define void @test_atomicrmw(i32* %p) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nounwind willreturn memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@test_atomicrmw
 ; TUNIT-SAME: (i32* nocapture nofree noundef nonnull dereferenceable(4) [[P:%.*]]) #[[ATTR8]] {
 ; TUNIT-NEXT:    [[TMP1:%.*]] = atomicrmw add i32* [[P]], i32 1 seq_cst, align 4
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@test_atomicrmw
 ; CGSCC-SAME: (i32* nocapture nofree noundef nonnull dereferenceable(4) [[P:%.*]]) #[[ATTR11]] {
 ; CGSCC-NEXT:    [[TMP1:%.*]] = atomicrmw add i32* [[P]], i32 1 seq_cst, align 4
@@ -572,7 +572,7 @@ define void @test_atomicrmw(i32* %p) {
 }
 
 define void @test_volatile(i32* %x) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nounwind willreturn memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@test_volatile
 ; TUNIT-SAME: (i32* nofree align 4 [[X:%.*]]) #[[ATTR8]] {
 ; TUNIT-NEXT:  entry:
@@ -580,7 +580,7 @@ define void @test_volatile(i32* %x) {
 ; TUNIT-NEXT:    store volatile i32 0, i32* [[GEP]], align 4
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@test_volatile
 ; CGSCC-SAME: (i32* nofree align 4 [[X:%.*]]) #[[ATTR11]] {
 ; CGSCC-NEXT:  entry:
@@ -607,7 +607,7 @@ define void @nocaptureLaunder(i8* %p) {
 ; CGSCC-LABEL: define {{[^@]+}}@nocaptureLaunder
 ; CGSCC-SAME: (i8* nocapture nofree [[P:%.*]]) #[[ATTR7]] {
 ; CGSCC-NEXT:  entry:
-; CGSCC-NEXT:    [[B:%.*]] = call i8* @llvm.launder.invariant.group.p0i8(i8* nofree [[P]]) #[[ATTR20:[0-9]+]]
+; CGSCC-NEXT:    [[B:%.*]] = call i8* @llvm.launder.invariant.group.p0i8(i8* nofree [[P]]) #[[ATTR17]]
 ; CGSCC-NEXT:    store i8 42, i8* [[B]], align 1
 ; CGSCC-NEXT:    ret void
 ;
@@ -629,7 +629,7 @@ define void @captureLaunder(i8* %p) {
 ; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn
 ; CGSCC-LABEL: define {{[^@]+}}@captureLaunder
 ; CGSCC-SAME: (i8* nofree [[P:%.*]]) #[[ATTR7]] {
-; CGSCC-NEXT:    [[B:%.*]] = call i8* @llvm.launder.invariant.group.p0i8(i8* nofree [[P]]) #[[ATTR20]]
+; CGSCC-NEXT:    [[B:%.*]] = call i8* @llvm.launder.invariant.group.p0i8(i8* nofree [[P]]) #[[ATTR17]]
 ; CGSCC-NEXT:    store i8* [[B]], i8** @g2, align 8
 ; CGSCC-NEXT:    ret void
 ;
@@ -639,19 +639,19 @@ define void @captureLaunder(i8* %p) {
 }
 
 define void @nocaptureStrip(i8* %p) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@nocaptureStrip
 ; TUNIT-SAME: (i8* nocapture nofree writeonly [[P:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
-; TUNIT-NEXT:    [[B:%.*]] = call i8* @llvm.strip.invariant.group.p0i8(i8* noalias nofree readnone [[P]]) #[[ATTR19:[0-9]+]]
+; TUNIT-NEXT:    [[B:%.*]] = call i8* @llvm.strip.invariant.group.p0i8(i8* noalias nofree readnone [[P]]) #[[ATTR18]]
 ; TUNIT-NEXT:    store i8 42, i8* [[B]], align 1
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@nocaptureStrip
 ; CGSCC-SAME: (i8* nocapture nofree writeonly [[P:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:  entry:
-; CGSCC-NEXT:    [[B:%.*]] = call i8* @llvm.strip.invariant.group.p0i8(i8* noalias nofree readnone [[P]]) #[[ATTR18]]
+; CGSCC-NEXT:    [[B:%.*]] = call i8* @llvm.strip.invariant.group.p0i8(i8* noalias nofree readnone [[P]]) #[[ATTR17]]
 ; CGSCC-NEXT:    store i8 42, i8* [[B]], align 1
 ; CGSCC-NEXT:    ret void
 ;
@@ -663,17 +663,17 @@ entry:
 
 @g3 = global i8* null
 define void @captureStrip(i8* %p) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@captureStrip
 ; TUNIT-SAME: (i8* nofree writeonly [[P:%.*]]) #[[ATTR1]] {
-; TUNIT-NEXT:    [[B:%.*]] = call i8* @llvm.strip.invariant.group.p0i8(i8* noalias nofree readnone [[P]]) #[[ATTR19]]
+; TUNIT-NEXT:    [[B:%.*]] = call i8* @llvm.strip.invariant.group.p0i8(i8* noalias nofree readnone [[P]]) #[[ATTR18]]
 ; TUNIT-NEXT:    store i8* [[B]], i8** @g3, align 8
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@captureStrip
 ; CGSCC-SAME: (i8* nofree writeonly [[P:%.*]]) #[[ATTR1]] {
-; CGSCC-NEXT:    [[B:%.*]] = call i8* @llvm.strip.invariant.group.p0i8(i8* noalias nofree readnone [[P]]) #[[ATTR18]]
+; CGSCC-NEXT:    [[B:%.*]] = call i8* @llvm.strip.invariant.group.p0i8(i8* noalias nofree readnone [[P]]) #[[ATTR17]]
 ; CGSCC-NEXT:    store i8* [[B]], i8** @g3, align 8
 ; CGSCC-NEXT:    ret void
 ;
@@ -683,7 +683,7 @@ define void @captureStrip(i8* %p) {
 }
 
 define i1 @captureICmp(i32* %x) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@captureICmp
 ; CHECK-SAME: (i32* nofree readnone [[X:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[TMP1:%.*]] = icmp eq i32* [[X]], null
@@ -694,7 +694,7 @@ define i1 @captureICmp(i32* %x) {
 }
 
 define i1 @captureICmpRev(i32* %x) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@captureICmpRev
 ; CHECK-SAME: (i32* nofree readnone [[X:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[TMP1:%.*]] = icmp eq i32* null, [[X]]
@@ -705,7 +705,7 @@ define i1 @captureICmpRev(i32* %x) {
 }
 
 define i1 @nocaptureInboundsGEPICmp(i32* %x) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@nocaptureInboundsGEPICmp
 ; CHECK-SAME: (i32* nocapture nofree readnone [[X:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    ret i1 false
@@ -717,7 +717,7 @@ define i1 @nocaptureInboundsGEPICmp(i32* %x) {
 }
 
 define i1 @nocaptureInboundsGEPICmpRev(i32* %x) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@nocaptureInboundsGEPICmpRev
 ; CHECK-SAME: (i32* nocapture nofree readnone [[X:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    ret i1 true
@@ -729,7 +729,7 @@ define i1 @nocaptureInboundsGEPICmpRev(i32* %x) {
 }
 
 define i1 @nocaptureDereferenceableOrNullICmp(i32* dereferenceable_or_null(4) %x) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@nocaptureDereferenceableOrNullICmp
 ; CHECK-SAME: (i32* nocapture nofree readnone dereferenceable_or_null(4) [[X:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[TMP1:%.*]] = bitcast i32* [[X]] to i8*
@@ -742,14 +742,14 @@ define i1 @nocaptureDereferenceableOrNullICmp(i32* dereferenceable_or_null(4) %x
 }
 
 define i1 @captureDereferenceableOrNullICmp(i32* dereferenceable_or_null(4) %x) null_pointer_is_valid {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind null_pointer_is_valid readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind null_pointer_is_valid willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@captureDereferenceableOrNullICmp
 ; TUNIT-SAME: (i32* nofree readnone dereferenceable_or_null(4) [[X:%.*]]) #[[ATTR9:[0-9]+]] {
 ; TUNIT-NEXT:    [[TMP1:%.*]] = bitcast i32* [[X]] to i8*
 ; TUNIT-NEXT:    [[TMP2:%.*]] = icmp eq i8* [[TMP1]], null
 ; TUNIT-NEXT:    ret i1 [[TMP2]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind null_pointer_is_valid readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind null_pointer_is_valid willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@captureDereferenceableOrNullICmp
 ; CGSCC-SAME: (i32* nofree readnone dereferenceable_or_null(4) [[X:%.*]]) #[[ATTR12:[0-9]+]] {
 ; CGSCC-NEXT:    [[TMP1:%.*]] = bitcast i32* [[X]] to i8*
@@ -776,16 +776,16 @@ entry:
 
 declare i8* @unknownpi8pi8(i8*,i8* returned)
 define i8* @test_returned1(i8* %A, i8* returned %B) nounwind readonly {
-; TUNIT: Function Attrs: nounwind readonly
+; TUNIT: Function Attrs: nounwind memory(read)
 ; TUNIT-LABEL: define {{[^@]+}}@test_returned1
-; TUNIT-SAME: (i8* nocapture readonly [[A:%.*]], i8* readonly returned [[B:%.*]]) #[[ATTR4]] {
+; TUNIT-SAME: (i8* nocapture [[A:%.*]], i8* returned [[B:%.*]]) #[[ATTR4]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    [[P:%.*]] = call i8* @unknownpi8pi8(i8* [[A]], i8* [[B]])
 ; TUNIT-NEXT:    ret i8* [[P]]
 ;
-; CGSCC: Function Attrs: nounwind readonly
+; CGSCC: Function Attrs: nounwind memory(read)
 ; CGSCC-LABEL: define {{[^@]+}}@test_returned1
-; CGSCC-SAME: (i8* nocapture readonly [[A:%.*]], i8* readonly returned [[B:%.*]]) #[[ATTR5]] {
+; CGSCC-SAME: (i8* nocapture [[A:%.*]], i8* returned [[B:%.*]]) #[[ATTR5]] {
 ; CGSCC-NEXT:  entry:
 ; CGSCC-NEXT:    [[P:%.*]] = call i8* @unknownpi8pi8(i8* [[A]], i8* [[B]])
 ; CGSCC-NEXT:    ret i8* [[P]]
@@ -796,14 +796,14 @@ entry:
 }
 
 define i8* @test_returned2(i8* %A, i8* %B) {
-; TUNIT: Function Attrs: nounwind readonly
+; TUNIT: Function Attrs: nounwind memory(read)
 ; TUNIT-LABEL: define {{[^@]+}}@test_returned2
 ; TUNIT-SAME: (i8* readonly [[A:%.*]], i8* readonly [[B:%.*]]) #[[ATTR4]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    [[P:%.*]] = call i8* @unknownpi8pi8(i8* readonly [[A]], i8* readonly [[B]]) #[[ATTR4]]
 ; TUNIT-NEXT:    ret i8* [[P]]
 ;
-; CGSCC: Function Attrs: nounwind readonly
+; CGSCC: Function Attrs: nounwind memory(read)
 ; CGSCC-LABEL: define {{[^@]+}}@test_returned2
 ; CGSCC-SAME: (i8* readonly [[A:%.*]], i8* readonly [[B:%.*]]) #[[ATTR5]] {
 ; CGSCC-NEXT:  entry:
@@ -843,46 +843,44 @@ define void @ptr_uses(i8* %ptr, i8* %wptr) {
 declare i8* @llvm.launder.invariant.group.p0i8(i8*)
 declare i8* @llvm.strip.invariant.group.p0i8(i8*)
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind readonly willreturn }
-; TUNIT: attributes #[[ATTR3]] = { readonly }
-; TUNIT: attributes #[[ATTR4]] = { nounwind readonly }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(write) }
+; TUNIT: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn memory(read) }
+; TUNIT: attributes #[[ATTR3:[0-9]+]] = { memory(read) }
+; TUNIT: attributes #[[ATTR4]] = { nounwind memory(read) }
 ; TUNIT: attributes #[[ATTR5]] = { nofree norecurse nosync nounwind willreturn }
-; TUNIT: attributes #[[ATTR6]] = { argmemonly nounwind }
-; TUNIT: attributes #[[ATTR7]] = { nofree nosync nounwind writeonly }
-; TUNIT: attributes #[[ATTR8]] = { argmemonly nofree norecurse nounwind willreturn }
-; TUNIT: attributes #[[ATTR9]] = { nofree norecurse nosync nounwind null_pointer_is_valid readnone willreturn }
-; TUNIT: attributes #[[ATTR10:[0-9]+]] = { nounwind readonly willreturn }
+; TUNIT: attributes #[[ATTR6]] = { nounwind memory(argmem: readwrite) }
+; TUNIT: attributes #[[ATTR7]] = { nofree nosync nounwind memory(write) }
+; TUNIT: attributes #[[ATTR8]] = { nofree norecurse nounwind willreturn memory(argmem: readwrite) }
+; TUNIT: attributes #[[ATTR9]] = { nofree norecurse nosync nounwind null_pointer_is_valid willreturn memory(none) }
+; TUNIT: attributes #[[ATTR10:[0-9]+]] = { nounwind willreturn memory(read) }
 ; TUNIT: attributes #[[ATTR11]] = { nounwind willreturn }
-; TUNIT: attributes #[[ATTR12:[0-9]+]] = { inaccessiblememonly nocallback nofree nosync nounwind speculatable willreturn }
-; TUNIT: attributes #[[ATTR13:[0-9]+]] = { nocallback nofree nosync nounwind readnone speculatable willreturn }
-; TUNIT: attributes #[[ATTR14]] = { nofree nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR15]] = { nofree nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR16]] = { nofree nosync nounwind willreturn }
-; TUNIT: attributes #[[ATTR17]] = { nounwind }
+; TUNIT: attributes #[[ATTR12:[0-9]+]] = { nocallback nofree nosync nounwind speculatable willreturn memory(inaccessiblemem: readwrite) }
+; TUNIT: attributes #[[ATTR13:[0-9]+]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
+; TUNIT: attributes #[[ATTR14]] = { nofree nosync nounwind willreturn }
+; TUNIT: attributes #[[ATTR15]] = { nofree nounwind willreturn }
+; TUNIT: attributes #[[ATTR16]] = { nounwind }
+; TUNIT: attributes #[[ATTR17]] = { nofree nosync nounwind }
 ; TUNIT: attributes #[[ATTR18]] = { willreturn }
-; TUNIT: attributes #[[ATTR19]] = { readnone willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR4]] = { readonly }
-; CGSCC: attributes #[[ATTR5]] = { nounwind readonly }
-; CGSCC: attributes #[[ATTR6]] = { nofree nosync nounwind readonly willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(write) }
+; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn memory(write) }
+; CGSCC: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind willreturn memory(read) }
+; CGSCC: attributes #[[ATTR4:[0-9]+]] = { memory(read) }
+; CGSCC: attributes #[[ATTR5]] = { nounwind memory(read) }
+; CGSCC: attributes #[[ATTR6]] = { nofree nosync nounwind willreturn memory(read) }
 ; CGSCC: attributes #[[ATTR7]] = { nofree norecurse nosync nounwind willreturn }
 ; CGSCC: attributes #[[ATTR8]] = { nofree nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR9]] = { argmemonly nounwind }
-; CGSCC: attributes #[[ATTR10]] = { nofree nosync nounwind writeonly }
-; CGSCC: attributes #[[ATTR11]] = { argmemonly nofree norecurse nounwind willreturn }
-; CGSCC: attributes #[[ATTR12]] = { nofree norecurse nosync nounwind null_pointer_is_valid readnone willreturn }
-; CGSCC: attributes #[[ATTR13:[0-9]+]] = { nounwind readonly willreturn }
+; CGSCC: attributes #[[ATTR9]] = { nounwind memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR10]] = { nofree nosync nounwind memory(write) }
+; CGSCC: attributes #[[ATTR11]] = { nofree norecurse nounwind willreturn memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR12]] = { nofree norecurse nosync nounwind null_pointer_is_valid willreturn memory(none) }
+; CGSCC: attributes #[[ATTR13:[0-9]+]] = { nounwind willreturn memory(read) }
 ; CGSCC: attributes #[[ATTR14]] = { nounwind willreturn }
-; CGSCC: attributes #[[ATTR15:[0-9]+]] = { inaccessiblememonly nocallback nofree nosync nounwind speculatable willreturn }
-; CGSCC: attributes #[[ATTR16:[0-9]+]] = { nocallback nofree nosync nounwind readnone speculatable willreturn }
-; CGSCC: attributes #[[ATTR17]] = { nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR18]] = { readnone willreturn }
-; CGSCC: attributes #[[ATTR19]] = { nounwind }
-; CGSCC: attributes #[[ATTR20]] = { willreturn }
+; CGSCC: attributes #[[ATTR15:[0-9]+]] = { nocallback nofree nosync nounwind speculatable willreturn memory(inaccessiblemem: readwrite) }
+; CGSCC: attributes #[[ATTR16:[0-9]+]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
+; CGSCC: attributes #[[ATTR17]] = { willreturn }
+; CGSCC: attributes #[[ATTR18]] = { nounwind }
+; CGSCC: attributes #[[ATTR19]] = { nofree nosync nounwind }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/nocapture-2.ll b/llvm/test/Transforms/Attributor/nocapture-2.ll
index f54b15ba6c5d4..ea6fc175b97b2 100644
--- a/llvm/test/Transforms/Attributor/nocapture-2.ll
+++ b/llvm/test/Transforms/Attributor/nocapture-2.ll
@@ -16,7 +16,7 @@ declare i32* @unknown()
 ;
 ; no-capture is missing on %p because it is not dereferenceable
 define i32 @is_null_return(i32* %p) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@is_null_return
 ; CHECK-SAME: (i32* nofree readnone [[P:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -42,7 +42,7 @@ entry:
 ;
 ; no-capture is missing on %p because it is not dereferenceable
 define i32 @is_null_control(i32* %p) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@is_null_control
 ; CHECK-SAME: (i32* nofree [[P:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -99,7 +99,7 @@ return:                                           ; preds = %if.end3, %if.then2,
 ; }
 ;
 define double* @srec0(double* %a) #0 {
-; CHECK: Function Attrs: nofree noinline nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@srec0
 ; CHECK-SAME: (double* nocapture nofree readnone [[A:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -124,7 +124,7 @@ entry:
 ; Other arguments are possible here due to the no-return behavior.
 ;
 define i32* @srec16(i32* %a) #0 {
-; CHECK: Function Attrs: nofree noinline nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@srec16
 ; CHECK-SAME: (i32* nocapture nofree readnone [[A:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:  entry:
@@ -164,27 +164,49 @@ entry:
 ;   return scc_A((int*)(scc_A(a) ? scc_B((double*)a) : scc_C(a)));
 ; }
 define float* @scc_A(i32* dereferenceable_or_null(4) %a) {
-; CHECK: Function Attrs: nofree nosync nounwind readnone
-; CHECK-LABEL: define {{[^@]+}}@scc_A
-; CHECK-SAME: (i32* nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR2:[0-9]+]] {
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TOBOOL:%.*]] = icmp ne i32* [[A]], null
-; CHECK-NEXT:    br i1 [[TOBOOL]], label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]]
-; CHECK:       cond.true:
-; CHECK-NEXT:    [[TMP0:%.*]] = bitcast i32* [[A]] to i16*
-; CHECK-NEXT:    [[CALL:%.*]] = call dereferenceable_or_null(4) i8* @scc_C(i16* noalias nofree nonnull readnone dereferenceable(4) "no-capture-maybe-returned" [[TMP0]]) #[[ATTR2]]
-; CHECK-NEXT:    [[TMP1:%.*]] = bitcast i8* [[CALL]] to double*
-; CHECK-NEXT:    [[CALL1:%.*]] = call dereferenceable_or_null(4) i64* @scc_B(double* noalias nofree readnone dereferenceable_or_null(8) "no-capture-maybe-returned" [[TMP1]]) #[[ATTR2]]
-; CHECK-NEXT:    [[TMP2:%.*]] = bitcast i64* [[CALL1]] to i32*
-; CHECK-NEXT:    [[CALL2:%.*]] = call dereferenceable_or_null(4) float* @scc_A(i32* noalias nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" [[TMP2]]) #[[ATTR2]]
-; CHECK-NEXT:    [[TMP3:%.*]] = bitcast float* [[CALL2]] to i32*
-; CHECK-NEXT:    br label [[COND_END:%.*]]
-; CHECK:       cond.false:
-; CHECK-NEXT:    br label [[COND_END]]
-; CHECK:       cond.end:
-; CHECK-NEXT:    [[COND:%.*]] = phi i32* [ [[TMP3]], [[COND_TRUE]] ], [ [[A]], [[COND_FALSE]] ]
-; CHECK-NEXT:    [[TMP4:%.*]] = bitcast i32* [[COND]] to float*
-; CHECK-NEXT:    ret float* [[TMP4]]
+; TUNIT: Function Attrs: nofree nosync nounwind memory(none)
+; TUNIT-LABEL: define {{[^@]+}}@scc_A
+; TUNIT-SAME: (i32* nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR2:[0-9]+]] {
+; TUNIT-NEXT:  entry:
+; TUNIT-NEXT:    [[TOBOOL:%.*]] = icmp ne i32* [[A]], null
+; TUNIT-NEXT:    br i1 [[TOBOOL]], label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]]
+; TUNIT:       cond.true:
+; TUNIT-NEXT:    [[TMP0:%.*]] = bitcast i32* [[A]] to i16*
+; TUNIT-NEXT:    [[CALL:%.*]] = call dereferenceable_or_null(4) i8* @scc_C(i16* noalias nofree nonnull readnone dereferenceable(4) "no-capture-maybe-returned" [[TMP0]]) #[[ATTR9:[0-9]+]]
+; TUNIT-NEXT:    [[TMP1:%.*]] = bitcast i8* [[CALL]] to double*
+; TUNIT-NEXT:    [[CALL1:%.*]] = call dereferenceable_or_null(4) i64* @scc_B(double* noalias nofree readnone dereferenceable_or_null(8) "no-capture-maybe-returned" [[TMP1]]) #[[ATTR9]]
+; TUNIT-NEXT:    [[TMP2:%.*]] = bitcast i64* [[CALL1]] to i32*
+; TUNIT-NEXT:    [[CALL2:%.*]] = call dereferenceable_or_null(4) float* @scc_A(i32* noalias nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" [[TMP2]]) #[[ATTR9]]
+; TUNIT-NEXT:    [[TMP3:%.*]] = bitcast float* [[CALL2]] to i32*
+; TUNIT-NEXT:    br label [[COND_END:%.*]]
+; TUNIT:       cond.false:
+; TUNIT-NEXT:    br label [[COND_END]]
+; TUNIT:       cond.end:
+; TUNIT-NEXT:    [[COND:%.*]] = phi i32* [ [[TMP3]], [[COND_TRUE]] ], [ [[A]], [[COND_FALSE]] ]
+; TUNIT-NEXT:    [[TMP4:%.*]] = bitcast i32* [[COND]] to float*
+; TUNIT-NEXT:    ret float* [[TMP4]]
+;
+; CGSCC: Function Attrs: nofree nosync nounwind memory(none)
+; CGSCC-LABEL: define {{[^@]+}}@scc_A
+; CGSCC-SAME: (i32* nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR2:[0-9]+]] {
+; CGSCC-NEXT:  entry:
+; CGSCC-NEXT:    [[TOBOOL:%.*]] = icmp ne i32* [[A]], null
+; CGSCC-NEXT:    br i1 [[TOBOOL]], label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]]
+; CGSCC:       cond.true:
+; CGSCC-NEXT:    [[TMP0:%.*]] = bitcast i32* [[A]] to i16*
+; CGSCC-NEXT:    [[CALL:%.*]] = call dereferenceable_or_null(4) i8* @scc_C(i16* noalias nofree nonnull readnone dereferenceable(4) "no-capture-maybe-returned" [[TMP0]]) #[[ATTR10:[0-9]+]]
+; CGSCC-NEXT:    [[TMP1:%.*]] = bitcast i8* [[CALL]] to double*
+; CGSCC-NEXT:    [[CALL1:%.*]] = call dereferenceable_or_null(4) i64* @scc_B(double* noalias nofree readnone dereferenceable_or_null(8) "no-capture-maybe-returned" [[TMP1]]) #[[ATTR10]]
+; CGSCC-NEXT:    [[TMP2:%.*]] = bitcast i64* [[CALL1]] to i32*
+; CGSCC-NEXT:    [[CALL2:%.*]] = call dereferenceable_or_null(4) float* @scc_A(i32* noalias nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" [[TMP2]]) #[[ATTR10]]
+; CGSCC-NEXT:    [[TMP3:%.*]] = bitcast float* [[CALL2]] to i32*
+; CGSCC-NEXT:    br label [[COND_END:%.*]]
+; CGSCC:       cond.false:
+; CGSCC-NEXT:    br label [[COND_END]]
+; CGSCC:       cond.end:
+; CGSCC-NEXT:    [[COND:%.*]] = phi i32* [ [[TMP3]], [[COND_TRUE]] ], [ [[A]], [[COND_FALSE]] ]
+; CGSCC-NEXT:    [[TMP4:%.*]] = bitcast i32* [[COND]] to float*
+; CGSCC-NEXT:    ret float* [[TMP4]]
 ;
 entry:
   %tobool = icmp ne i32* %a, null
@@ -211,27 +233,49 @@ cond.end:                                         ; preds = %cond.false, %cond.t
 
 ; FIXME: the call1 below to scc_B should return dereferenceable_or_null(8) (as the callee does). Something prevented that deduction and needs to be investigated.
 define i64* @scc_B(double* dereferenceable_or_null(8) %a) {
-; CHECK: Function Attrs: nofree nosync nounwind readnone
-; CHECK-LABEL: define {{[^@]+}}@scc_B
-; CHECK-SAME: (double* nofree readnone dereferenceable_or_null(8) "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR2]] {
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TOBOOL:%.*]] = icmp ne double* [[A]], null
-; CHECK-NEXT:    br i1 [[TOBOOL]], label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]]
-; CHECK:       cond.true:
-; CHECK-NEXT:    [[TMP0:%.*]] = bitcast double* [[A]] to i32*
-; CHECK-NEXT:    [[CALL:%.*]] = call dereferenceable_or_null(4) float* @scc_A(i32* noalias nofree nonnull readnone dereferenceable(8) "no-capture-maybe-returned" [[TMP0]]) #[[ATTR2]]
-; CHECK-NEXT:    [[TMP1:%.*]] = bitcast float* [[CALL]] to double*
-; CHECK-NEXT:    [[CALL1:%.*]] = call dereferenceable_or_null(4) i64* @scc_B(double* noalias nofree readnone dereferenceable_or_null(8) "no-capture-maybe-returned" [[TMP1]]) #[[ATTR2]]
-; CHECK-NEXT:    [[TMP2:%.*]] = bitcast i64* [[CALL1]] to i16*
-; CHECK-NEXT:    [[CALL2:%.*]] = call dereferenceable_or_null(4) i8* @scc_C(i16* noalias nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" [[TMP2]]) #[[ATTR2]]
-; CHECK-NEXT:    br label [[COND_END:%.*]]
-; CHECK:       cond.false:
-; CHECK-NEXT:    [[TMP3:%.*]] = bitcast double* [[A]] to i8*
-; CHECK-NEXT:    br label [[COND_END]]
-; CHECK:       cond.end:
-; CHECK-NEXT:    [[COND:%.*]] = phi i8* [ [[CALL2]], [[COND_TRUE]] ], [ [[TMP3]], [[COND_FALSE]] ]
-; CHECK-NEXT:    [[TMP4:%.*]] = bitcast i8* [[COND]] to i64*
-; CHECK-NEXT:    ret i64* [[TMP4]]
+; TUNIT: Function Attrs: nofree nosync nounwind memory(none)
+; TUNIT-LABEL: define {{[^@]+}}@scc_B
+; TUNIT-SAME: (double* nofree readnone dereferenceable_or_null(8) "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR2]] {
+; TUNIT-NEXT:  entry:
+; TUNIT-NEXT:    [[TOBOOL:%.*]] = icmp ne double* [[A]], null
+; TUNIT-NEXT:    br i1 [[TOBOOL]], label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]]
+; TUNIT:       cond.true:
+; TUNIT-NEXT:    [[TMP0:%.*]] = bitcast double* [[A]] to i32*
+; TUNIT-NEXT:    [[CALL:%.*]] = call dereferenceable_or_null(4) float* @scc_A(i32* noalias nofree nonnull readnone dereferenceable(8) "no-capture-maybe-returned" [[TMP0]]) #[[ATTR9]]
+; TUNIT-NEXT:    [[TMP1:%.*]] = bitcast float* [[CALL]] to double*
+; TUNIT-NEXT:    [[CALL1:%.*]] = call dereferenceable_or_null(4) i64* @scc_B(double* noalias nofree readnone dereferenceable_or_null(8) "no-capture-maybe-returned" [[TMP1]]) #[[ATTR9]]
+; TUNIT-NEXT:    [[TMP2:%.*]] = bitcast i64* [[CALL1]] to i16*
+; TUNIT-NEXT:    [[CALL2:%.*]] = call dereferenceable_or_null(4) i8* @scc_C(i16* noalias nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" [[TMP2]]) #[[ATTR9]]
+; TUNIT-NEXT:    br label [[COND_END:%.*]]
+; TUNIT:       cond.false:
+; TUNIT-NEXT:    [[TMP3:%.*]] = bitcast double* [[A]] to i8*
+; TUNIT-NEXT:    br label [[COND_END]]
+; TUNIT:       cond.end:
+; TUNIT-NEXT:    [[COND:%.*]] = phi i8* [ [[CALL2]], [[COND_TRUE]] ], [ [[TMP3]], [[COND_FALSE]] ]
+; TUNIT-NEXT:    [[TMP4:%.*]] = bitcast i8* [[COND]] to i64*
+; TUNIT-NEXT:    ret i64* [[TMP4]]
+;
+; CGSCC: Function Attrs: nofree nosync nounwind memory(none)
+; CGSCC-LABEL: define {{[^@]+}}@scc_B
+; CGSCC-SAME: (double* nofree readnone dereferenceable_or_null(8) "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR2]] {
+; CGSCC-NEXT:  entry:
+; CGSCC-NEXT:    [[TOBOOL:%.*]] = icmp ne double* [[A]], null
+; CGSCC-NEXT:    br i1 [[TOBOOL]], label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]]
+; CGSCC:       cond.true:
+; CGSCC-NEXT:    [[TMP0:%.*]] = bitcast double* [[A]] to i32*
+; CGSCC-NEXT:    [[CALL:%.*]] = call dereferenceable_or_null(4) float* @scc_A(i32* noalias nofree nonnull readnone dereferenceable(8) "no-capture-maybe-returned" [[TMP0]]) #[[ATTR10]]
+; CGSCC-NEXT:    [[TMP1:%.*]] = bitcast float* [[CALL]] to double*
+; CGSCC-NEXT:    [[CALL1:%.*]] = call dereferenceable_or_null(4) i64* @scc_B(double* noalias nofree readnone dereferenceable_or_null(8) "no-capture-maybe-returned" [[TMP1]]) #[[ATTR10]]
+; CGSCC-NEXT:    [[TMP2:%.*]] = bitcast i64* [[CALL1]] to i16*
+; CGSCC-NEXT:    [[CALL2:%.*]] = call dereferenceable_or_null(4) i8* @scc_C(i16* noalias nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" [[TMP2]]) #[[ATTR10]]
+; CGSCC-NEXT:    br label [[COND_END:%.*]]
+; CGSCC:       cond.false:
+; CGSCC-NEXT:    [[TMP3:%.*]] = bitcast double* [[A]] to i8*
+; CGSCC-NEXT:    br label [[COND_END]]
+; CGSCC:       cond.end:
+; CGSCC-NEXT:    [[COND:%.*]] = phi i8* [ [[CALL2]], [[COND_TRUE]] ], [ [[TMP3]], [[COND_FALSE]] ]
+; CGSCC-NEXT:    [[TMP4:%.*]] = bitcast i8* [[COND]] to i64*
+; CGSCC-NEXT:    ret i64* [[TMP4]]
 ;
 entry:
   %tobool = icmp ne double* %a, null
@@ -257,29 +301,53 @@ cond.end:                                         ; preds = %cond.false, %cond.t
 }
 
 define i8* @scc_C(i16* dereferenceable_or_null(2) %a) {
-; CHECK: Function Attrs: nofree nosync nounwind readnone
-; CHECK-LABEL: define {{[^@]+}}@scc_C
-; CHECK-SAME: (i16* nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR2]] {
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[BC:%.*]] = bitcast i16* [[A]] to i32*
-; CHECK-NEXT:    [[CALL:%.*]] = call dereferenceable_or_null(4) float* @scc_A(i32* noalias nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" [[BC]]) #[[ATTR2]]
-; CHECK-NEXT:    [[BC2:%.*]] = bitcast float* [[CALL]] to i8*
-; CHECK-NEXT:    [[TOBOOL:%.*]] = icmp ne i8* [[BC2]], null
-; CHECK-NEXT:    br i1 [[TOBOOL]], label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]]
-; CHECK:       cond.true:
-; CHECK-NEXT:    [[TMP0:%.*]] = bitcast i16* [[A]] to double*
-; CHECK-NEXT:    [[CALL1:%.*]] = call dereferenceable_or_null(4) i64* @scc_B(double* noalias nofree readnone dereferenceable_or_null(8) "no-capture-maybe-returned" [[TMP0]]) #[[ATTR2]]
-; CHECK-NEXT:    [[TMP1:%.*]] = bitcast i64* [[CALL1]] to i8*
-; CHECK-NEXT:    br label [[COND_END:%.*]]
-; CHECK:       cond.false:
-; CHECK-NEXT:    [[CALL2:%.*]] = call dereferenceable_or_null(4) i8* @scc_C(i16* noalias nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" [[A]]) #[[ATTR2]]
-; CHECK-NEXT:    br label [[COND_END]]
-; CHECK:       cond.end:
-; CHECK-NEXT:    [[COND:%.*]] = phi i8* [ [[TMP1]], [[COND_TRUE]] ], [ [[CALL2]], [[COND_FALSE]] ]
-; CHECK-NEXT:    [[TMP2:%.*]] = bitcast i8* [[COND]] to i32*
-; CHECK-NEXT:    [[CALL3:%.*]] = call dereferenceable_or_null(4) float* @scc_A(i32* noalias nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" [[TMP2]]) #[[ATTR2]]
-; CHECK-NEXT:    [[TMP3:%.*]] = bitcast float* [[CALL3]] to i8*
-; CHECK-NEXT:    ret i8* [[TMP3]]
+; TUNIT: Function Attrs: nofree nosync nounwind memory(none)
+; TUNIT-LABEL: define {{[^@]+}}@scc_C
+; TUNIT-SAME: (i16* nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR2]] {
+; TUNIT-NEXT:  entry:
+; TUNIT-NEXT:    [[BC:%.*]] = bitcast i16* [[A]] to i32*
+; TUNIT-NEXT:    [[CALL:%.*]] = call dereferenceable_or_null(4) float* @scc_A(i32* noalias nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" [[BC]]) #[[ATTR9]]
+; TUNIT-NEXT:    [[BC2:%.*]] = bitcast float* [[CALL]] to i8*
+; TUNIT-NEXT:    [[TOBOOL:%.*]] = icmp ne i8* [[BC2]], null
+; TUNIT-NEXT:    br i1 [[TOBOOL]], label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]]
+; TUNIT:       cond.true:
+; TUNIT-NEXT:    [[TMP0:%.*]] = bitcast i16* [[A]] to double*
+; TUNIT-NEXT:    [[CALL1:%.*]] = call dereferenceable_or_null(4) i64* @scc_B(double* noalias nofree readnone dereferenceable_or_null(8) "no-capture-maybe-returned" [[TMP0]]) #[[ATTR9]]
+; TUNIT-NEXT:    [[TMP1:%.*]] = bitcast i64* [[CALL1]] to i8*
+; TUNIT-NEXT:    br label [[COND_END:%.*]]
+; TUNIT:       cond.false:
+; TUNIT-NEXT:    [[CALL2:%.*]] = call dereferenceable_or_null(4) i8* @scc_C(i16* noalias nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" [[A]]) #[[ATTR9]]
+; TUNIT-NEXT:    br label [[COND_END]]
+; TUNIT:       cond.end:
+; TUNIT-NEXT:    [[COND:%.*]] = phi i8* [ [[TMP1]], [[COND_TRUE]] ], [ [[CALL2]], [[COND_FALSE]] ]
+; TUNIT-NEXT:    [[TMP2:%.*]] = bitcast i8* [[COND]] to i32*
+; TUNIT-NEXT:    [[CALL3:%.*]] = call dereferenceable_or_null(4) float* @scc_A(i32* noalias nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" [[TMP2]]) #[[ATTR9]]
+; TUNIT-NEXT:    [[TMP3:%.*]] = bitcast float* [[CALL3]] to i8*
+; TUNIT-NEXT:    ret i8* [[TMP3]]
+;
+; CGSCC: Function Attrs: nofree nosync nounwind memory(none)
+; CGSCC-LABEL: define {{[^@]+}}@scc_C
+; CGSCC-SAME: (i16* nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR2]] {
+; CGSCC-NEXT:  entry:
+; CGSCC-NEXT:    [[BC:%.*]] = bitcast i16* [[A]] to i32*
+; CGSCC-NEXT:    [[CALL:%.*]] = call dereferenceable_or_null(4) float* @scc_A(i32* noalias nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" [[BC]]) #[[ATTR10]]
+; CGSCC-NEXT:    [[BC2:%.*]] = bitcast float* [[CALL]] to i8*
+; CGSCC-NEXT:    [[TOBOOL:%.*]] = icmp ne i8* [[BC2]], null
+; CGSCC-NEXT:    br i1 [[TOBOOL]], label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]]
+; CGSCC:       cond.true:
+; CGSCC-NEXT:    [[TMP0:%.*]] = bitcast i16* [[A]] to double*
+; CGSCC-NEXT:    [[CALL1:%.*]] = call dereferenceable_or_null(4) i64* @scc_B(double* noalias nofree readnone dereferenceable_or_null(8) "no-capture-maybe-returned" [[TMP0]]) #[[ATTR10]]
+; CGSCC-NEXT:    [[TMP1:%.*]] = bitcast i64* [[CALL1]] to i8*
+; CGSCC-NEXT:    br label [[COND_END:%.*]]
+; CGSCC:       cond.false:
+; CGSCC-NEXT:    [[CALL2:%.*]] = call dereferenceable_or_null(4) i8* @scc_C(i16* noalias nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" [[A]]) #[[ATTR10]]
+; CGSCC-NEXT:    br label [[COND_END]]
+; CGSCC:       cond.end:
+; CGSCC-NEXT:    [[COND:%.*]] = phi i8* [ [[TMP1]], [[COND_TRUE]] ], [ [[CALL2]], [[COND_FALSE]] ]
+; CGSCC-NEXT:    [[TMP2:%.*]] = bitcast i8* [[COND]] to i32*
+; CGSCC-NEXT:    [[CALL3:%.*]] = call dereferenceable_or_null(4) float* @scc_A(i32* noalias nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" [[TMP2]]) #[[ATTR10]]
+; CGSCC-NEXT:    [[TMP3:%.*]] = bitcast float* [[CALL3]] to i8*
+; CGSCC-NEXT:    ret i8* [[TMP3]]
 ;
 entry:
   %bc = bitcast i16* %a to i32*
@@ -360,7 +428,7 @@ declare i32 @printf(i8* nocapture, ...)
 ;
 ; There should *not* be a no-capture attribute on %a
 define i64* @not_captured_but_returned_0(i64* %a) #0 {
-; CHECK: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind willreturn writeonly uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(argmem: write) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@not_captured_but_returned_0
 ; CHECK-SAME: (i64* nofree noundef nonnull returned writeonly align 8 dereferenceable(8) "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR4:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -381,7 +449,7 @@ entry:
 ;
 ; There should *not* be a no-capture attribute on %a
 define i64* @not_captured_but_returned_1(i64* %a) #0 {
-; CHECK: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind willreturn writeonly uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(argmem: write) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@not_captured_but_returned_1
 ; CHECK-SAME: (i64* nofree nonnull writeonly align 8 dereferenceable(16) "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR4]] {
 ; CHECK-NEXT:  entry:
@@ -403,20 +471,20 @@ entry:
 ; }
 ;
 define void @test_not_captured_but_returned_calls(i64* %a) #0 {
-; TUNIT: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind willreturn writeonly uwtable
+; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(argmem: write) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@test_not_captured_but_returned_calls
 ; TUNIT-SAME: (i64* nocapture nofree writeonly align 8 [[A:%.*]]) #[[ATTR4]] {
 ; TUNIT-NEXT:  entry:
-; TUNIT-NEXT:    [[CALL:%.*]] = call i64* @not_captured_but_returned_0(i64* nofree writeonly align 8 "no-capture-maybe-returned" [[A]]) #[[ATTR9:[0-9]+]]
-; TUNIT-NEXT:    [[CALL1:%.*]] = call i64* @not_captured_but_returned_1(i64* nofree writeonly align 8 "no-capture-maybe-returned" [[A]]) #[[ATTR9]]
+; TUNIT-NEXT:    [[CALL:%.*]] = call i64* @not_captured_but_returned_0(i64* nofree writeonly align 8 "no-capture-maybe-returned" [[A]]) #[[ATTR10:[0-9]+]]
+; TUNIT-NEXT:    [[CALL1:%.*]] = call i64* @not_captured_but_returned_1(i64* nofree writeonly align 8 "no-capture-maybe-returned" [[A]]) #[[ATTR10]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree noinline nosync nounwind willreturn writeonly uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind willreturn memory(argmem: write) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@test_not_captured_but_returned_calls
 ; CGSCC-SAME: (i64* nofree noundef nonnull writeonly align 8 dereferenceable(16) [[A:%.*]]) #[[ATTR5:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
-; CGSCC-NEXT:    [[CALL:%.*]] = call i64* @not_captured_but_returned_0(i64* nofree noundef nonnull writeonly align 8 dereferenceable(16) [[A]]) #[[ATTR10:[0-9]+]]
-; CGSCC-NEXT:    [[CALL1:%.*]] = call i64* @not_captured_but_returned_1(i64* nofree noundef nonnull writeonly align 8 dereferenceable(16) [[A]]) #[[ATTR10]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call i64* @not_captured_but_returned_0(i64* nofree noundef nonnull writeonly align 8 dereferenceable(16) [[A]]) #[[ATTR11:[0-9]+]]
+; CGSCC-NEXT:    [[CALL1:%.*]] = call i64* @not_captured_but_returned_1(i64* nofree noundef nonnull writeonly align 8 dereferenceable(16) [[A]]) #[[ATTR11]]
 ; CGSCC-NEXT:    ret void
 ;
 entry:
@@ -433,18 +501,18 @@ entry:
 ;
 ; There should *not* be a no-capture attribute on %a
 define i64* @negative_test_not_captured_but_returned_call_0a(i64* %a) #0 {
-; TUNIT: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind willreturn writeonly uwtable
+; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(argmem: write) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@negative_test_not_captured_but_returned_call_0a
 ; TUNIT-SAME: (i64* nofree returned writeonly align 8 "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR4]] {
 ; TUNIT-NEXT:  entry:
-; TUNIT-NEXT:    [[CALL:%.*]] = call i64* @not_captured_but_returned_0(i64* nofree writeonly align 8 "no-capture-maybe-returned" [[A]]) #[[ATTR9]]
+; TUNIT-NEXT:    [[CALL:%.*]] = call i64* @not_captured_but_returned_0(i64* nofree writeonly align 8 "no-capture-maybe-returned" [[A]]) #[[ATTR10]]
 ; TUNIT-NEXT:    ret i64* [[A]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree noinline nosync nounwind willreturn writeonly uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind willreturn memory(argmem: write) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@negative_test_not_captured_but_returned_call_0a
 ; CGSCC-SAME: (i64* nofree noundef nonnull writeonly align 8 dereferenceable(8) [[A:%.*]]) #[[ATTR5]] {
 ; CGSCC-NEXT:  entry:
-; CGSCC-NEXT:    [[CALL:%.*]] = call noundef nonnull align 8 dereferenceable(8) i64* @not_captured_but_returned_0(i64* nofree noundef nonnull writeonly align 8 dereferenceable(8) [[A]]) #[[ATTR10]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call noundef nonnull align 8 dereferenceable(8) i64* @not_captured_but_returned_0(i64* nofree noundef nonnull writeonly align 8 dereferenceable(8) [[A]]) #[[ATTR11]]
 ; CGSCC-NEXT:    ret i64* [[CALL]]
 ;
 entry:
@@ -460,20 +528,20 @@ entry:
 ;
 ; There should *not* be a no-capture attribute on %a
 define void @negative_test_not_captured_but_returned_call_0b(i64* %a) #0 {
-; TUNIT: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind willreturn writeonly uwtable
+; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(argmem: write) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@negative_test_not_captured_but_returned_call_0b
 ; TUNIT-SAME: (i64* nofree writeonly align 8 [[A:%.*]]) #[[ATTR4]] {
 ; TUNIT-NEXT:  entry:
-; TUNIT-NEXT:    [[CALL:%.*]] = call i64* @not_captured_but_returned_0(i64* nofree writeonly align 8 "no-capture-maybe-returned" [[A]]) #[[ATTR9]]
+; TUNIT-NEXT:    [[CALL:%.*]] = call i64* @not_captured_but_returned_0(i64* nofree writeonly align 8 "no-capture-maybe-returned" [[A]]) #[[ATTR10]]
 ; TUNIT-NEXT:    [[TMP0:%.*]] = ptrtoint i64* [[A]] to i64
 ; TUNIT-NEXT:    store i64 [[TMP0]], i64* [[A]], align 8
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree noinline nosync nounwind willreturn writeonly uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind willreturn memory(argmem: write) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@negative_test_not_captured_but_returned_call_0b
 ; CGSCC-SAME: (i64* nofree noundef nonnull writeonly align 8 dereferenceable(8) [[A:%.*]]) #[[ATTR5]] {
 ; CGSCC-NEXT:  entry:
-; CGSCC-NEXT:    [[CALL:%.*]] = call i64* @not_captured_but_returned_0(i64* nofree noundef nonnull writeonly align 8 dereferenceable(8) [[A]]) #[[ATTR10]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call i64* @not_captured_but_returned_0(i64* nofree noundef nonnull writeonly align 8 dereferenceable(8) [[A]]) #[[ATTR11]]
 ; CGSCC-NEXT:    [[TMP0:%.*]] = ptrtoint i64* [[CALL]] to i64
 ; CGSCC-NEXT:    store i64 [[TMP0]], i64* [[A]], align 8
 ; CGSCC-NEXT:    ret void
@@ -493,18 +561,18 @@ entry:
 ;
 ; There should *not* be a no-capture attribute on %a
 define i64* @negative_test_not_captured_but_returned_call_1a(i64* %a) #0 {
-; TUNIT: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind willreturn writeonly uwtable
+; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(argmem: write) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@negative_test_not_captured_but_returned_call_1a
 ; TUNIT-SAME: (i64* nofree writeonly align 8 "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR4]] {
 ; TUNIT-NEXT:  entry:
-; TUNIT-NEXT:    [[CALL:%.*]] = call noundef nonnull align 8 dereferenceable(8) i64* @not_captured_but_returned_1(i64* nofree writeonly align 8 "no-capture-maybe-returned" [[A]]) #[[ATTR9]]
+; TUNIT-NEXT:    [[CALL:%.*]] = call noundef nonnull align 8 dereferenceable(8) i64* @not_captured_but_returned_1(i64* nofree writeonly align 8 "no-capture-maybe-returned" [[A]]) #[[ATTR10]]
 ; TUNIT-NEXT:    ret i64* [[CALL]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree noinline nosync nounwind willreturn writeonly uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind willreturn memory(argmem: write) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@negative_test_not_captured_but_returned_call_1a
 ; CGSCC-SAME: (i64* nofree noundef nonnull writeonly align 8 dereferenceable(16) [[A:%.*]]) #[[ATTR5]] {
 ; CGSCC-NEXT:  entry:
-; CGSCC-NEXT:    [[CALL:%.*]] = call noundef nonnull align 8 dereferenceable(8) i64* @not_captured_but_returned_1(i64* nofree noundef nonnull writeonly align 8 dereferenceable(16) [[A]]) #[[ATTR10]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call noundef nonnull align 8 dereferenceable(8) i64* @not_captured_but_returned_1(i64* nofree noundef nonnull writeonly align 8 dereferenceable(16) [[A]]) #[[ATTR11]]
 ; CGSCC-NEXT:    ret i64* [[CALL]]
 ;
 entry:
@@ -520,20 +588,20 @@ entry:
 ;
 ; There should *not* be a no-capture attribute on %a
 define void @negative_test_not_captured_but_returned_call_1b(i64* %a) #0 {
-; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind willreturn writeonly uwtable
+; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(write) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@negative_test_not_captured_but_returned_call_1b
 ; TUNIT-SAME: (i64* nofree writeonly align 8 [[A:%.*]]) #[[ATTR5:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
-; TUNIT-NEXT:    [[CALL:%.*]] = call align 8 i64* @not_captured_but_returned_1(i64* nofree writeonly align 8 "no-capture-maybe-returned" [[A]]) #[[ATTR9]]
+; TUNIT-NEXT:    [[CALL:%.*]] = call align 8 i64* @not_captured_but_returned_1(i64* nofree writeonly align 8 "no-capture-maybe-returned" [[A]]) #[[ATTR10]]
 ; TUNIT-NEXT:    [[TMP0:%.*]] = ptrtoint i64* [[CALL]] to i64
 ; TUNIT-NEXT:    store i64 [[TMP0]], i64* [[CALL]], align 8
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree noinline nosync nounwind willreturn writeonly uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind willreturn memory(write) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@negative_test_not_captured_but_returned_call_1b
 ; CGSCC-SAME: (i64* nofree noundef nonnull writeonly align 8 dereferenceable(16) [[A:%.*]]) #[[ATTR6:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
-; CGSCC-NEXT:    [[CALL:%.*]] = call align 8 i64* @not_captured_but_returned_1(i64* nofree noundef nonnull writeonly align 8 dereferenceable(16) [[A]]) #[[ATTR10]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call align 8 i64* @not_captured_but_returned_1(i64* nofree noundef nonnull writeonly align 8 dereferenceable(16) [[A]]) #[[ATTR11]]
 ; CGSCC-NEXT:    [[TMP0:%.*]] = ptrtoint i64* [[CALL]] to i64
 ; CGSCC-NEXT:    store i64 [[TMP0]], i64* [[CALL]], align 8
 ; CGSCC-NEXT:    ret void
@@ -619,18 +687,18 @@ r:
 declare i32* @readonly_unknown(i32*, i32*) readonly
 
 define void @not_captured_by_readonly_call(i32* %b) #0 {
-; TUNIT: Function Attrs: noinline nounwind readonly uwtable
+; TUNIT: Function Attrs: noinline nounwind memory(read) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@not_captured_by_readonly_call
 ; TUNIT-SAME: (i32* nocapture readonly [[B:%.*]]) #[[ATTR7:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
-; TUNIT-NEXT:    [[CALL:%.*]] = call i32* @readonly_unknown(i32* readonly [[B]], i32* readonly [[B]]) #[[ATTR6:[0-9]+]]
+; TUNIT-NEXT:    [[CALL:%.*]] = call i32* @readonly_unknown(i32* readonly [[B]], i32* readonly [[B]])
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: noinline nounwind readonly uwtable
+; CGSCC: Function Attrs: noinline nounwind memory(read) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@not_captured_by_readonly_call
 ; CGSCC-SAME: (i32* nocapture readonly [[B:%.*]]) #[[ATTR8:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
-; CGSCC-NEXT:    [[CALL:%.*]] = call i32* @readonly_unknown(i32* readonly [[B]], i32* readonly [[B]]) #[[ATTR7:[0-9]+]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call i32* @readonly_unknown(i32* readonly [[B]], i32* readonly [[B]])
 ; CGSCC-NEXT:    ret void
 ;
 entry:
@@ -644,18 +712,18 @@ entry:
 ; Make sure the returned flag on %r is strong enough to justify nocapture on %b but **not** on %r.
 ;
 define i32* @not_captured_by_readonly_call_not_returned_either1(i32* %b, i32* returned %r) {
-; TUNIT: Function Attrs: nounwind readonly
+; TUNIT: Function Attrs: nounwind memory(read)
 ; TUNIT-LABEL: define {{[^@]+}}@not_captured_by_readonly_call_not_returned_either1
 ; TUNIT-SAME: (i32* nocapture readonly [[B:%.*]], i32* readonly returned [[R:%.*]]) #[[ATTR8:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
-; TUNIT-NEXT:    [[CALL:%.*]] = call i32* @readonly_unknown(i32* readonly [[B]], i32* readonly [[R]]) #[[ATTR8]]
+; TUNIT-NEXT:    [[CALL:%.*]] = call i32* @readonly_unknown(i32* readonly [[B]], i32* readonly [[R]]) #[[ATTR11:[0-9]+]]
 ; TUNIT-NEXT:    ret i32* [[CALL]]
 ;
-; CGSCC: Function Attrs: nounwind readonly
+; CGSCC: Function Attrs: nounwind memory(read)
 ; CGSCC-LABEL: define {{[^@]+}}@not_captured_by_readonly_call_not_returned_either1
 ; CGSCC-SAME: (i32* nocapture readonly [[B:%.*]], i32* readonly returned [[R:%.*]]) #[[ATTR9:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
-; CGSCC-NEXT:    [[CALL:%.*]] = call i32* @readonly_unknown(i32* readonly [[B]], i32* readonly [[R]]) #[[ATTR9]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call i32* @readonly_unknown(i32* readonly [[B]], i32* readonly [[R]]) #[[ATTR12:[0-9]+]]
 ; CGSCC-NEXT:    ret i32* [[CALL]]
 ;
 entry:
@@ -665,18 +733,18 @@ entry:
 
 declare i32* @readonly_unknown_r1a(i32*, i32* returned) readonly
 define i32* @not_captured_by_readonly_call_not_returned_either2(i32* %b, i32* %r) {
-; TUNIT: Function Attrs: nounwind readonly
+; TUNIT: Function Attrs: nounwind memory(read)
 ; TUNIT-LABEL: define {{[^@]+}}@not_captured_by_readonly_call_not_returned_either2
 ; TUNIT-SAME: (i32* readonly [[B:%.*]], i32* readonly [[R:%.*]]) #[[ATTR8]] {
 ; TUNIT-NEXT:  entry:
-; TUNIT-NEXT:    [[CALL:%.*]] = call i32* @readonly_unknown_r1a(i32* readonly [[B]], i32* readonly [[R]]) #[[ATTR8]]
+; TUNIT-NEXT:    [[CALL:%.*]] = call i32* @readonly_unknown_r1a(i32* readonly [[B]], i32* readonly [[R]]) #[[ATTR11]]
 ; TUNIT-NEXT:    ret i32* [[CALL]]
 ;
-; CGSCC: Function Attrs: nounwind readonly
+; CGSCC: Function Attrs: nounwind memory(read)
 ; CGSCC-LABEL: define {{[^@]+}}@not_captured_by_readonly_call_not_returned_either2
 ; CGSCC-SAME: (i32* readonly [[B:%.*]], i32* readonly [[R:%.*]]) #[[ATTR9]] {
 ; CGSCC-NEXT:  entry:
-; CGSCC-NEXT:    [[CALL:%.*]] = call i32* @readonly_unknown_r1a(i32* readonly [[B]], i32* readonly [[R]]) #[[ATTR9]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call i32* @readonly_unknown_r1a(i32* readonly [[B]], i32* readonly [[R]]) #[[ATTR12]]
 ; CGSCC-NEXT:    ret i32* [[CALL]]
 ;
 entry:
@@ -686,18 +754,18 @@ entry:
 
 declare i32* @readonly_unknown_r1b(i32*, i32* returned) readonly nounwind
 define i32* @not_captured_by_readonly_call_not_returned_either3(i32* %b, i32* %r) {
-; TUNIT: Function Attrs: nounwind readonly
+; TUNIT: Function Attrs: nounwind memory(read)
 ; TUNIT-LABEL: define {{[^@]+}}@not_captured_by_readonly_call_not_returned_either3
 ; TUNIT-SAME: (i32* nocapture readonly [[B:%.*]], i32* readonly [[R:%.*]]) #[[ATTR8]] {
 ; TUNIT-NEXT:  entry:
-; TUNIT-NEXT:    [[CALL:%.*]] = call i32* @readonly_unknown_r1b(i32* nocapture readonly [[B]], i32* readonly [[R]]) #[[ATTR8]]
+; TUNIT-NEXT:    [[CALL:%.*]] = call i32* @readonly_unknown_r1b(i32* nocapture readonly [[B]], i32* readonly [[R]]) #[[ATTR11]]
 ; TUNIT-NEXT:    ret i32* [[CALL]]
 ;
-; CGSCC: Function Attrs: nounwind readonly
+; CGSCC: Function Attrs: nounwind memory(read)
 ; CGSCC-LABEL: define {{[^@]+}}@not_captured_by_readonly_call_not_returned_either3
 ; CGSCC-SAME: (i32* nocapture readonly [[B:%.*]], i32* readonly [[R:%.*]]) #[[ATTR9]] {
 ; CGSCC-NEXT:  entry:
-; CGSCC-NEXT:    [[CALL:%.*]] = call i32* @readonly_unknown_r1b(i32* nocapture readonly [[B]], i32* readonly [[R]]) #[[ATTR9]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call i32* @readonly_unknown_r1b(i32* nocapture readonly [[B]], i32* readonly [[R]]) #[[ATTR12]]
 ; CGSCC-NEXT:    ret i32* [[CALL]]
 ;
 entry:
@@ -706,18 +774,18 @@ entry:
 }
 
 define i32* @not_captured_by_readonly_call_not_returned_either4(i32* %b, i32* %r) nounwind {
-; TUNIT: Function Attrs: nounwind readonly
+; TUNIT: Function Attrs: nounwind memory(read)
 ; TUNIT-LABEL: define {{[^@]+}}@not_captured_by_readonly_call_not_returned_either4
 ; TUNIT-SAME: (i32* readonly [[B:%.*]], i32* readonly [[R:%.*]]) #[[ATTR8]] {
 ; TUNIT-NEXT:  entry:
-; TUNIT-NEXT:    [[CALL:%.*]] = call i32* @readonly_unknown_r1a(i32* readonly [[B]], i32* readonly [[R]]) #[[ATTR6]]
+; TUNIT-NEXT:    [[CALL:%.*]] = call i32* @readonly_unknown_r1a(i32* readonly [[B]], i32* readonly [[R]])
 ; TUNIT-NEXT:    ret i32* [[CALL]]
 ;
-; CGSCC: Function Attrs: nounwind readonly
+; CGSCC: Function Attrs: nounwind memory(read)
 ; CGSCC-LABEL: define {{[^@]+}}@not_captured_by_readonly_call_not_returned_either4
 ; CGSCC-SAME: (i32* readonly [[B:%.*]], i32* readonly [[R:%.*]]) #[[ATTR9]] {
 ; CGSCC-NEXT:  entry:
-; CGSCC-NEXT:    [[CALL:%.*]] = call i32* @readonly_unknown_r1a(i32* readonly [[B]], i32* readonly [[R]]) #[[ATTR7]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call i32* @readonly_unknown_r1a(i32* readonly [[B]], i32* readonly [[R]])
 ; CGSCC-NEXT:    ret i32* [[CALL]]
 ;
 entry:
@@ -743,19 +811,12 @@ entry:
 
 declare i32* @readonly_i32p(i32*) readonly
 define void @nocapture_is_not_subsumed_2(i32* nocapture %b) {
-; TUNIT-LABEL: define {{[^@]+}}@nocapture_is_not_subsumed_2
-; TUNIT-SAME: (i32* nocapture [[B:%.*]]) {
-; TUNIT-NEXT:  entry:
-; TUNIT-NEXT:    [[CALL:%.*]] = call i32* @readonly_i32p(i32* readonly [[B]]) #[[ATTR6]]
-; TUNIT-NEXT:    store i32 0, i32* [[CALL]], align 4
-; TUNIT-NEXT:    ret void
-;
-; CGSCC-LABEL: define {{[^@]+}}@nocapture_is_not_subsumed_2
-; CGSCC-SAME: (i32* nocapture [[B:%.*]]) {
-; CGSCC-NEXT:  entry:
-; CGSCC-NEXT:    [[CALL:%.*]] = call i32* @readonly_i32p(i32* readonly [[B]]) #[[ATTR7]]
-; CGSCC-NEXT:    store i32 0, i32* [[CALL]], align 4
-; CGSCC-NEXT:    ret void
+; CHECK-LABEL: define {{[^@]+}}@nocapture_is_not_subsumed_2
+; CHECK-SAME: (i32* nocapture [[B:%.*]]) {
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[CALL:%.*]] = call i32* @readonly_i32p(i32* readonly [[B]])
+; CHECK-NEXT:    store i32 0, i32* [[CALL]], align 4
+; CHECK-NEXT:    ret void
 ;
 entry:
   %call = call i32* @readonly_i32p(i32* %b)
@@ -765,26 +826,30 @@ entry:
 
 attributes #0 = { noinline nounwind uwtable }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind readnone willreturn uwtable }
-; TUNIT: attributes #[[ATTR1]] = { nofree noinline nosync nounwind readnone willreturn uwtable }
-; TUNIT: attributes #[[ATTR2]] = { nofree nosync nounwind readnone }
+; TUNIT: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable }
+; TUNIT: attributes #[[ATTR1]] = { nofree noinline nosync nounwind willreturn memory(none) uwtable }
+; TUNIT: attributes #[[ATTR2]] = { nofree nosync nounwind memory(none) }
 ; TUNIT: attributes #[[ATTR3]] = { noinline nounwind uwtable }
-; TUNIT: attributes #[[ATTR4]] = { argmemonly nofree noinline norecurse nosync nounwind willreturn writeonly uwtable }
-; TUNIT: attributes #[[ATTR5]] = { nofree noinline norecurse nosync nounwind willreturn writeonly uwtable }
-; TUNIT: attributes #[[ATTR6]] = { readonly }
-; TUNIT: attributes #[[ATTR7]] = { noinline nounwind readonly uwtable }
-; TUNIT: attributes #[[ATTR8]] = { nounwind readonly }
-; TUNIT: attributes #[[ATTR9]] = { nofree nosync nounwind willreturn writeonly }
+; TUNIT: attributes #[[ATTR4]] = { nofree noinline norecurse nosync nounwind willreturn memory(argmem: write) uwtable }
+; TUNIT: attributes #[[ATTR5]] = { nofree noinline norecurse nosync nounwind willreturn memory(write) uwtable }
+; TUNIT: attributes #[[ATTR6:[0-9]+]] = { memory(read) }
+; TUNIT: attributes #[[ATTR7]] = { noinline nounwind memory(read) uwtable }
+; TUNIT: attributes #[[ATTR8]] = { nounwind memory(read) }
+; TUNIT: attributes #[[ATTR9]] = { nofree nosync nounwind }
+; TUNIT: attributes #[[ATTR10]] = { nofree nosync nounwind willreturn }
+; TUNIT: attributes #[[ATTR11]] = { nounwind }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind readnone willreturn uwtable }
-; CGSCC: attributes #[[ATTR1]] = { nofree noinline nosync nounwind readnone willreturn uwtable }
-; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind readnone }
+; CGSCC: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable }
+; CGSCC: attributes #[[ATTR1]] = { nofree noinline nosync nounwind willreturn memory(none) uwtable }
+; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind memory(none) }
 ; CGSCC: attributes #[[ATTR3]] = { noinline nounwind uwtable }
-; CGSCC: attributes #[[ATTR4]] = { argmemonly nofree noinline norecurse nosync nounwind willreturn writeonly uwtable }
-; CGSCC: attributes #[[ATTR5]] = { argmemonly nofree noinline nosync nounwind willreturn writeonly uwtable }
-; CGSCC: attributes #[[ATTR6]] = { nofree noinline nosync nounwind willreturn writeonly uwtable }
-; CGSCC: attributes #[[ATTR7]] = { readonly }
-; CGSCC: attributes #[[ATTR8]] = { noinline nounwind readonly uwtable }
-; CGSCC: attributes #[[ATTR9]] = { nounwind readonly }
-; CGSCC: attributes #[[ATTR10]] = { nounwind willreturn writeonly }
+; CGSCC: attributes #[[ATTR4]] = { nofree noinline norecurse nosync nounwind willreturn memory(argmem: write) uwtable }
+; CGSCC: attributes #[[ATTR5]] = { nofree noinline nosync nounwind willreturn memory(argmem: write) uwtable }
+; CGSCC: attributes #[[ATTR6]] = { nofree noinline nosync nounwind willreturn memory(write) uwtable }
+; CGSCC: attributes #[[ATTR7:[0-9]+]] = { memory(read) }
+; CGSCC: attributes #[[ATTR8]] = { noinline nounwind memory(read) uwtable }
+; CGSCC: attributes #[[ATTR9]] = { nounwind memory(read) }
+; CGSCC: attributes #[[ATTR10]] = { nofree nosync nounwind }
+; CGSCC: attributes #[[ATTR11]] = { nounwind willreturn }
+; CGSCC: attributes #[[ATTR12]] = { nounwind }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/nodelete.ll b/llvm/test/Transforms/Attributor/nodelete.ll
index 41355326dc910..c22fcfde8a71b 100644
--- a/llvm/test/Transforms/Attributor/nodelete.ll
+++ b/llvm/test/Transforms/Attributor/nodelete.ll
@@ -6,13 +6,13 @@
 %"b" = type { i8 }
 
 define hidden i64 @f1() align 2 {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@f1
 ; TUNIT-SAME: () #[[ATTR0:[0-9]+]] align 2 {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    ret i64 undef
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@f1
 ; CGSCC-SAME: () #[[ATTR0:[0-9]+]] align 2 {
 ; CGSCC-NEXT:  entry:
@@ -27,7 +27,7 @@ entry:
 }
 
 define internal i64 @f2(%"a"* %this) align 2 {
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@f2
 ; CGSCC-SAME: () #[[ATTR0]] align 2 {
 ; CGSCC-NEXT:  entry:
@@ -43,7 +43,7 @@ entry:
 }
 
 define internal void @f3(%"b"* %this) align 2 {
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@f3
 ; CGSCC-SAME: () #[[ATTR0]] align 2 {
 ; CGSCC-NEXT:  entry:
@@ -58,7 +58,7 @@ entry:
 }
 
 define internal i1 @f4(%"b"* %this) align 2 {
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@f4
 ; CGSCC-SAME: () #[[ATTR0]] align 2 {
 ; CGSCC-NEXT:  entry:
@@ -73,7 +73,7 @@ entry:
 }
 
 define internal %"a"* @f5(%"b"* %this) align 2 {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@f5
 ; CGSCC-SAME: () #[[ATTR1:[0-9]+]] align 2 {
 ; CGSCC-NEXT:  entry:
@@ -87,9 +87,9 @@ entry:
   ret %"a"* %0
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/nofree.ll b/llvm/test/Transforms/Attributor/nofree.ll
index 13bfde5277b86..9eb23ab793d12 100644
--- a/llvm/test/Transforms/Attributor/nofree.ll
+++ b/llvm/test/Transforms/Attributor/nofree.ll
@@ -15,7 +15,7 @@ declare void @_ZdaPv(i8*) local_unnamed_addr #2
 
 ; TEST 1 (positive case)
 define void @only_return() #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@only_return
 ; CHECK-SAME: () #[[ATTR3:[0-9]+]] {
 ; CHECK-NEXT:    ret void
@@ -104,12 +104,12 @@ end:
 
 
 define void @mutual_recursion1() #0 {
-; TUNIT: Function Attrs: nofree noinline nosync nounwind readnone willreturn uwtable
+; TUNIT: Function Attrs: nofree noinline nosync nounwind willreturn memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@mutual_recursion1
 ; TUNIT-SAME: () #[[ATTR4:[0-9]+]] {
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CGSCC: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@mutual_recursion1
 ; CGSCC-SAME: () #[[ATTR3]] {
 ; CGSCC-NEXT:    ret void
@@ -119,12 +119,12 @@ define void @mutual_recursion1() #0 {
 }
 
 define void @mutual_recursion2() #0 {
-; TUNIT: Function Attrs: nofree noinline nosync nounwind readnone willreturn uwtable
+; TUNIT: Function Attrs: nofree noinline nosync nounwind willreturn memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@mutual_recursion2
 ; TUNIT-SAME: () #[[ATTR4]] {
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CGSCC: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@mutual_recursion2
 ; CGSCC-SAME: () #[[ATTR3]] {
 ; CGSCC-NEXT:    ret void
@@ -182,17 +182,17 @@ define noalias i8* @call_realloc(i8* nocapture %0, i64 %1) local_unnamed_addr #0
 ; Call function declaration with "nofree"
 
 
-; CHECK: Function Attrs:  nofree noinline nounwind readnone uwtable
+; CHECK: Function Attrs:  nofree noinline nounwind memory(none) uwtable
 ; CHECK-NEXT: declare void @nofree_function()
 declare void @nofree_function() nofree readnone #0
 
 define void @call_nofree_function() #0 {
-; TUNIT: Function Attrs: nofree noinline nosync nounwind readnone willreturn uwtable
+; TUNIT: Function Attrs: nofree noinline nosync nounwind willreturn memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@call_nofree_function
 ; TUNIT-SAME: () #[[ATTR4]] {
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree noinline nosync nounwind readnone willreturn uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind willreturn memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@call_nofree_function
 ; CGSCC-SAME: () #[[ATTR5:[0-9]+]] {
 ; CGSCC-NEXT:    ret void
@@ -240,12 +240,12 @@ define void @call_both() #0 {
 
 ; TEST 10 (positive case)
 ; Call intrinsic function
-; CHECK: Function Attrs: nocallback nofree nosync nounwind readnone speculatable willreturn
+; CHECK: Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
 ; CHECK-NEXT: declare float @llvm.floor.f32(float)
 declare float @llvm.floor.f32(float)
 
 define void @call_floor(float %a) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@call_floor
 ; CHECK-SAME: (float [[A:%.*]]) #[[ATTR3]] {
 ; CHECK-NEXT:    ret void
@@ -255,7 +255,7 @@ define void @call_floor(float %a) #0 {
 }
 
 define float @call_floor2(float %a) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@call_floor2
 ; CHECK-SAME: (float [[A:%.*]]) #[[ATTR3]] {
 ; CHECK-NEXT:    [[C:%.*]] = tail call float @llvm.floor.f32(float [[A]]) #[[ATTR11:[0-9]+]]
@@ -269,12 +269,12 @@ define float @call_floor2(float %a) #0 {
 ; Check propagation.
 
 define void @f1() #0 {
-; TUNIT: Function Attrs: nofree noinline nosync nounwind readnone willreturn uwtable
+; TUNIT: Function Attrs: nofree noinline nosync nounwind willreturn memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@f1
 ; TUNIT-SAME: () #[[ATTR4]] {
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree noinline nosync nounwind readnone willreturn uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind willreturn memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@f1
 ; CGSCC-SAME: () #[[ATTR5]] {
 ; CGSCC-NEXT:    ret void
@@ -284,12 +284,12 @@ define void @f1() #0 {
 }
 
 define void @f2() #0 {
-; TUNIT: Function Attrs: nofree noinline nosync nounwind readnone willreturn uwtable
+; TUNIT: Function Attrs: nofree noinline nosync nounwind willreturn memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@f2
 ; TUNIT-SAME: () #[[ATTR4]] {
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree noinline nosync nounwind readnone willreturn uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind willreturn memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@f2
 ; CGSCC-SAME: () #[[ATTR5]] {
 ; CGSCC-NEXT:    ret void
@@ -357,7 +357,7 @@ define void @nonnull_assume_pos(i8* %arg1, i8* %arg2, i8* %arg3, i8* %arg4) {
 ;
 ; CHECK-LABEL: define {{[^@]+}}@nonnull_assume_pos
 ; CHECK-SAME: (i8* nofree [[ARG1:%.*]], i8* [[ARG2:%.*]], i8* nofree [[ARG3:%.*]], i8* [[ARG4:%.*]]) {
-; CHECK-NEXT:    call void @llvm.assume(i1 noundef true) #[[ATTR12:[0-9]+]] [ "nofree"(i8* [[ARG1]]), "nofree"(i8* [[ARG3]]) ]
+; CHECK-NEXT:    call void @llvm.assume(i1 noundef true) #[[ATTR11]] [ "nofree"(i8* [[ARG1]]), "nofree"(i8* [[ARG3]]) ]
 ; CHECK-NEXT:    call void @unknown(i8* nofree [[ARG1]], i8* [[ARG2]], i8* nofree [[ARG3]], i8* [[ARG4]])
 ; CHECK-NEXT:    ret void
 ;
@@ -440,28 +440,26 @@ attributes #2 = { nobuiltin nounwind }
 ; TUNIT: attributes #[[ATTR0]] = { nounwind }
 ; TUNIT: attributes #[[ATTR1]] = { noinline nounwind uwtable }
 ; TUNIT: attributes #[[ATTR2]] = { nobuiltin nounwind }
-; TUNIT: attributes #[[ATTR3]] = { nofree noinline norecurse nosync nounwind readnone willreturn uwtable }
-; TUNIT: attributes #[[ATTR4]] = { nofree noinline nosync nounwind readnone willreturn uwtable }
-; TUNIT: attributes #[[ATTR5:[0-9]+]] = { nofree noinline nounwind readnone uwtable }
-; TUNIT: attributes #[[ATTR6:[0-9]+]] = { nocallback nofree nosync nounwind readnone speculatable willreturn }
+; TUNIT: attributes #[[ATTR3]] = { nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable }
+; TUNIT: attributes #[[ATTR4]] = { nofree noinline nosync nounwind willreturn memory(none) uwtable }
+; TUNIT: attributes #[[ATTR5:[0-9]+]] = { nofree noinline nounwind memory(none) uwtable }
+; TUNIT: attributes #[[ATTR6:[0-9]+]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
 ; TUNIT: attributes #[[ATTR7]] = { nofree nounwind }
 ; TUNIT: attributes #[[ATTR8:[0-9]+]] = { nobuiltin nofree nounwind }
-; TUNIT: attributes #[[ATTR9:[0-9]+]] = { inaccessiblememonly nocallback nofree nosync nounwind willreturn }
+; TUNIT: attributes #[[ATTR9:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite) }
 ; TUNIT: attributes #[[ATTR10:[0-9]+]] = { nounwind willreturn }
-; TUNIT: attributes #[[ATTR11]] = { readnone willreturn }
-; TUNIT: attributes #[[ATTR12]] = { willreturn }
+; TUNIT: attributes #[[ATTR11]] = { willreturn }
 ;.
 ; CGSCC: attributes #[[ATTR0]] = { nounwind }
 ; CGSCC: attributes #[[ATTR1]] = { noinline nounwind uwtable }
 ; CGSCC: attributes #[[ATTR2]] = { nobuiltin nounwind }
-; CGSCC: attributes #[[ATTR3]] = { nofree noinline norecurse nosync nounwind readnone willreturn uwtable }
-; CGSCC: attributes #[[ATTR4:[0-9]+]] = { nofree noinline nounwind readnone uwtable }
-; CGSCC: attributes #[[ATTR5]] = { nofree noinline nosync nounwind readnone willreturn uwtable }
-; CGSCC: attributes #[[ATTR6:[0-9]+]] = { nocallback nofree nosync nounwind readnone speculatable willreturn }
+; CGSCC: attributes #[[ATTR3]] = { nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable }
+; CGSCC: attributes #[[ATTR4:[0-9]+]] = { nofree noinline nounwind memory(none) uwtable }
+; CGSCC: attributes #[[ATTR5]] = { nofree noinline nosync nounwind willreturn memory(none) uwtable }
+; CGSCC: attributes #[[ATTR6:[0-9]+]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
 ; CGSCC: attributes #[[ATTR7]] = { nofree nounwind }
 ; CGSCC: attributes #[[ATTR8:[0-9]+]] = { nobuiltin nofree nounwind }
-; CGSCC: attributes #[[ATTR9:[0-9]+]] = { inaccessiblememonly nocallback nofree nosync nounwind willreturn }
+; CGSCC: attributes #[[ATTR9:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite) }
 ; CGSCC: attributes #[[ATTR10:[0-9]+]] = { nounwind willreturn }
-; CGSCC: attributes #[[ATTR11]] = { readnone willreturn }
-; CGSCC: attributes #[[ATTR12]] = { willreturn }
+; CGSCC: attributes #[[ATTR11]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/nonnull.ll b/llvm/test/Transforms/Attributor/nonnull.ll
index 3bea83442d24d..5a1e37cc73133 100644
--- a/llvm/test/Transforms/Attributor/nonnull.ll
+++ b/llvm/test/Transforms/Attributor/nonnull.ll
@@ -20,7 +20,7 @@ define i8* @test1() {
 
 ; Return a pointer trivially nonnull (argument attribute)
 define i8* @test2(i8* nonnull %p) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test2
 ; CHECK-SAME: (i8* nofree nonnull readnone returned "no-capture-maybe-returned" [[P:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:    ret i8* [[P]]
@@ -29,7 +29,7 @@ define i8* @test2(i8* nonnull %p) {
 }
 
 define i8* @test2A(i1 %c, i8* %ret) {
-; CHECK: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@test2A
 ; CHECK-SAME: (i1 [[C:%.*]], i8* nofree nonnull readnone returned "no-capture-maybe-returned" [[RET:%.*]]) #[[ATTR2:[0-9]+]] {
 ; CHECK-NEXT:    br i1 [[C]], label [[A:%.*]], label [[B:%.*]]
@@ -50,7 +50,7 @@ B:
 }
 
 define i8* @test2B(i1 %c, i8* %ret) {
-; CHECK: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@test2B
 ; CHECK-SAME: (i1 [[C:%.*]], i8* nofree nonnull readnone returned dereferenceable(4) "no-capture-maybe-returned" [[RET:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    br i1 [[C]], label [[A:%.*]], label [[B:%.*]]
@@ -106,12 +106,12 @@ define i8* @test3(i1 %c) {
 ; nonnull if neither can ever return null.  (In this case, they
 ; just never return period.)
 define i8* @test4_helper() {
-; TUNIT: Function Attrs: nofree nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@test4_helper
 ; TUNIT-SAME: () #[[ATTR3:[0-9]+]] {
 ; TUNIT-NEXT:    ret i8* undef
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@test4_helper
 ; CGSCC-SAME: () #[[ATTR1]] {
 ; CGSCC-NEXT:    ret i8* undef
@@ -121,12 +121,12 @@ define i8* @test4_helper() {
 }
 
 define i8* @test4() {
-; TUNIT: Function Attrs: nofree nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@test4
 ; TUNIT-SAME: () #[[ATTR3]] {
 ; TUNIT-NEXT:    ret i8* undef
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@test4
 ; CGSCC-SAME: () #[[ATTR1]] {
 ; CGSCC-NEXT:    ret i8* undef
@@ -138,7 +138,7 @@ define i8* @test4() {
 ; Given a mutual recursive set of functions which *can* return null
 ; make sure we haven't marked them as nonnull.
 define i8* @test5_helper(i1 %c) {
-; TUNIT: Function Attrs: nofree nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@test5_helper
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:    br i1 [[C]], label [[REC:%.*]], label [[END:%.*]]
@@ -147,7 +147,7 @@ define i8* @test5_helper(i1 %c) {
 ; TUNIT:       end:
 ; TUNIT-NEXT:    ret i8* null
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@test5_helper
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:    br i1 [[C]], label [[REC:%.*]], label [[END:%.*]]
@@ -165,12 +165,12 @@ end:
 }
 
 define i8* @test5(i1 %c) {
-; TUNIT: Function Attrs: nofree nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@test5
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:    ret i8* null
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@test5
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:    ret i8* null
@@ -237,7 +237,7 @@ exit:
 }
 
 define i8* @test7(i8* %a) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test7
 ; CHECK-SAME: (i8* nofree readnone returned "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:    ret i8* [[A]]
@@ -247,7 +247,7 @@ define i8* @test7(i8* %a) {
 }
 
 define i8* @test8(i8* %a) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test8
 ; CHECK-SAME: (i8* nofree readnone "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:    [[B:%.*]] = getelementptr inbounds i8, i8* [[A]], i64 1
@@ -258,7 +258,7 @@ define i8* @test8(i8* %a) {
 }
 
 define i8* @test9(i8* %a, i64 %n) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test9
 ; CHECK-SAME: (i8* nofree readnone "no-capture-maybe-returned" [[A:%.*]], i64 [[N:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:    [[B:%.*]] = getelementptr inbounds i8, i8* [[A]], i64 [[N]]
@@ -271,7 +271,7 @@ define i8* @test9(i8* %a, i64 %n) {
 ; ATTRIBUTOR_OPM: define i8* @test10
 ; ATTRIBUTOR_NPM: define nonnull i8* @test10
 define i8* @test10(i8* %a, i64 %n) {
-; CHECK: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@test10
 ; CHECK-SAME: (i8* nofree readnone "no-capture-maybe-returned" [[A:%.*]], i64 [[N:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp ne i64 [[N]], 0
@@ -391,7 +391,7 @@ declare nonnull i8* @nonnull()
 
 define internal i32* @f1(i32* %arg) {
 ; FIXME: missing nonnull It should be nonnull @f1(i32* nonnull readonly %arg)
-; TUNIT: Function Attrs: argmemonly nofree nosync nounwind readonly
+; TUNIT: Function Attrs: nofree nosync nounwind memory(argmem: read)
 ; TUNIT-LABEL: define {{[^@]+}}@f1
 ; TUNIT-SAME: (i32* nofree readonly [[ARG:%.*]]) #[[ATTR6:[0-9]+]] {
 ; TUNIT-NEXT:  bb:
@@ -413,7 +413,7 @@ define internal i32* @f1(i32* %arg) {
 ; TUNIT-NEXT:    [[TMP10:%.*]] = phi i32* [ [[TMP5C]], [[BB4]] ], [ inttoptr (i64 4 to i32*), [[BB:%.*]] ]
 ; TUNIT-NEXT:    ret i32* [[TMP10]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind readonly
+; CGSCC: Function Attrs: nofree nosync nounwind memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@f1
 ; CGSCC-SAME: (i32* nofree readonly [[ARG:%.*]]) #[[ATTR5:[0-9]+]] {
 ; CGSCC-NEXT:  bb:
@@ -461,14 +461,14 @@ bb9:                                              ; preds = %bb4, %bb
 }
 
 define internal i32* @f2(i32* %arg) {
-; TUNIT: Function Attrs: argmemonly nofree nosync nounwind readonly
+; TUNIT: Function Attrs: nofree nosync nounwind memory(argmem: read)
 ; TUNIT-LABEL: define {{[^@]+}}@f2
 ; TUNIT-SAME: (i32* nofree nonnull readonly align 4 dereferenceable(4) [[ARG:%.*]]) #[[ATTR6]] {
 ; TUNIT-NEXT:  bb:
 ; TUNIT-NEXT:    [[TMP:%.*]] = tail call i32* @f1(i32* nofree readonly [[ARG]]) #[[ATTR14]]
 ; TUNIT-NEXT:    ret i32* [[TMP]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind readonly
+; CGSCC: Function Attrs: nofree nosync nounwind memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@f2
 ; CGSCC-SAME: (i32* nofree nonnull readonly align 4 dereferenceable(4) [[ARG:%.*]]) #[[ATTR5]] {
 ; CGSCC-NEXT:  bb:
@@ -482,14 +482,14 @@ bb:
 
 define dso_local noalias i32* @f3(i32* %arg) {
 ; FIXME: missing nonnull. It should be nonnull @f3(i32* nonnull readonly %arg)
-; TUNIT: Function Attrs: argmemonly nofree nosync nounwind readonly
+; TUNIT: Function Attrs: nofree nosync nounwind memory(argmem: read)
 ; TUNIT-LABEL: define {{[^@]+}}@f3
 ; TUNIT-SAME: (i32* nofree readonly [[ARG:%.*]]) #[[ATTR6]] {
 ; TUNIT-NEXT:  bb:
 ; TUNIT-NEXT:    [[TMP:%.*]] = call i32* @f1(i32* nofree readonly [[ARG]]) #[[ATTR14]]
 ; TUNIT-NEXT:    ret i32* [[TMP]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind readonly
+; CGSCC: Function Attrs: nofree nosync nounwind memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@f3
 ; CGSCC-SAME: (i32* nofree readonly [[ARG:%.*]]) #[[ATTR5]] {
 ; CGSCC-NEXT:  bb:
@@ -857,7 +857,7 @@ define i8 @parent6(i8* %a, i8* %b) {
 define i8 @parent7(i8* %a) {
 ; CHECK-LABEL: define {{[^@]+}}@parent7
 ; CHECK-SAME: (i8* nonnull [[A:%.*]]) {
-; CHECK-NEXT:    [[RET:%.*]] = call i8 @use1safecall(i8* nonnull readonly [[A]]) #[[ATTR15:[0-9]+]]
+; CHECK-NEXT:    [[RET:%.*]] = call i8 @use1safecall(i8* nonnull readonly [[A]]) #[[ATTR13]]
 ; CHECK-NEXT:    call void @use1nonnull(i8* nonnull [[A]])
 ; CHECK-NEXT:    ret i8 [[RET]]
 ;
@@ -915,7 +915,7 @@ exc:
 }
 
 define i32* @gep1(i32* %p) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@gep1
 ; CHECK-SAME: (i32* nofree readnone "no-capture-maybe-returned" [[P:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:    [[Q:%.*]] = getelementptr inbounds i32, i32* [[P]], i32 1
@@ -927,13 +927,13 @@ define i32* @gep1(i32* %p) {
 
 define i32* @gep1_no_null_opt(i32* %p) #0 {
 ; Should't be able to derive nonnull based on gep.
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind null_pointer_is_valid readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind null_pointer_is_valid willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@gep1_no_null_opt
 ; TUNIT-SAME: (i32* nofree readnone "no-capture-maybe-returned" [[P:%.*]]) #[[ATTR9:[0-9]+]] {
 ; TUNIT-NEXT:    [[Q:%.*]] = getelementptr inbounds i32, i32* [[P]], i32 1
 ; TUNIT-NEXT:    ret i32* [[Q]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind null_pointer_is_valid readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind null_pointer_is_valid willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@gep1_no_null_opt
 ; CGSCC-SAME: (i32* nofree readnone "no-capture-maybe-returned" [[P:%.*]]) #[[ATTR8:[0-9]+]] {
 ; CGSCC-NEXT:    [[Q:%.*]] = getelementptr inbounds i32, i32* [[P]], i32 1
@@ -944,7 +944,7 @@ define i32* @gep1_no_null_opt(i32* %p) #0 {
 }
 
 define i32 addrspace(3)* @gep2(i32 addrspace(3)* %p) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@gep2
 ; CHECK-SAME: (i32 addrspace(3)* nofree readnone "no-capture-maybe-returned" [[P:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:    [[Q:%.*]] = getelementptr inbounds i32, i32 addrspace(3)* [[P]], i32 1
@@ -956,7 +956,7 @@ define i32 addrspace(3)* @gep2(i32 addrspace(3)* %p) {
 
 ; FIXME: We should propagate dereferenceable here but *not* nonnull
 define i32 addrspace(3)* @as(i32 addrspace(3)* dereferenceable(4) %p) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@as
 ; CHECK-SAME: (i32 addrspace(3)* nofree nonnull readnone returned dereferenceable(4) "no-capture-maybe-returned" [[P:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:    ret i32 addrspace(3)* [[P]]
@@ -966,7 +966,7 @@ define i32 addrspace(3)* @as(i32 addrspace(3)* dereferenceable(4) %p) {
 
 ; CHECK-NOT: @g2()
 define internal i32* @g2() {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@g2
 ; CGSCC-SAME: () #[[ATTR1]] {
 ; CGSCC-NEXT:    ret i32* inttoptr (i64 4 to i32*)
@@ -975,15 +975,15 @@ define internal i32* @g2() {
 }
 
 define i32* @g1() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@g1
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i32* inttoptr (i64 4 to i32*)
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@g1
 ; CGSCC-SAME: () #[[ATTR9:[0-9]+]] {
-; CGSCC-NEXT:    [[C:%.*]] = call noundef nonnull align 4 i32* @g2() #[[ATTR16:[0-9]+]]
+; CGSCC-NEXT:    [[C:%.*]] = call noundef nonnull align 4 i32* @g2() #[[ATTR13]]
 ; CGSCC-NEXT:    ret i32* [[C]]
 ;
   %c = call i32* @g2()
@@ -1391,10 +1391,10 @@ declare i8* @strrchr(i8* %0, i32 %1) nofree nounwind readonly willreturn
 
 ; We should not mark the return of @strrchr as `nonnull`, it may well be NULL!
 define i8* @mybasename(i8* nofree readonly %str) {
-; CHECK: Function Attrs: nofree nounwind readonly willreturn
+; CHECK: Function Attrs: nofree nounwind willreturn memory(read)
 ; CHECK-LABEL: define {{[^@]+}}@mybasename
 ; CHECK-SAME: (i8* nofree readonly [[STR:%.*]]) #[[ATTR12:[0-9]+]] {
-; CHECK-NEXT:    [[CALL:%.*]] = call i8* @strrchr(i8* nofree readonly [[STR]], i32 noundef 47) #[[ATTR15]]
+; CHECK-NEXT:    [[CALL:%.*]] = call i8* @strrchr(i8* nofree readonly [[STR]], i32 noundef 47) #[[ATTR13]]
 ; CHECK-NEXT:    [[TOBOOL:%.*]] = icmp ne i8* [[CALL]], null
 ; CHECK-NEXT:    [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[CALL]], i64 1
 ; CHECK-NEXT:    [[COND:%.*]] = select i1 [[TOBOOL]], i8* [[ADD_PTR]], i8* [[STR]]
@@ -1486,7 +1486,7 @@ declare void @use_i8_ptr(i8* nofree nocapture readnone) nounwind
 declare void @use_i8_ptr_ret(i8* nofree nocapture readnone) nounwind willreturn
 
 define i8* @nonnull_function_ptr_1() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@nonnull_function_ptr_1
 ; CHECK-SAME: () #[[ATTR1]] {
 ; CHECK-NEXT:    ret i8* bitcast (i8* ()* @nonnull_function_ptr_1 to i8*)
@@ -1497,7 +1497,7 @@ define i8* @nonnull_function_ptr_1() {
 
 declare i8* @function_decl()
 define i8* @nonnull_function_ptr_2() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@nonnull_function_ptr_2
 ; CHECK-SAME: () #[[ATTR1]] {
 ; CHECK-NEXT:    ret i8* bitcast (i8* ()* @function_decl to i8*)
@@ -1522,38 +1522,35 @@ declare void @nonnull_callee(i8* nonnull %p)
 attributes #0 = { null_pointer_is_valid }
 attributes #1 = { nounwind willreturn}
 ;.
-; TUNIT: attributes #[[ATTR0:[0-9]+]] = { inaccessiblememonly nocallback nofree nosync nounwind willreturn }
-; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR2]] = { inaccessiblememonly nofree norecurse nosync nounwind willreturn }
-; TUNIT: attributes #[[ATTR3]] = { nofree nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite) }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite) }
+; TUNIT: attributes #[[ATTR3]] = { nofree nosync nounwind willreturn memory(none) }
 ; TUNIT: attributes #[[ATTR4]] = { noreturn }
 ; TUNIT: attributes #[[ATTR5]] = { nounwind }
-; TUNIT: attributes #[[ATTR6]] = { argmemonly nofree nosync nounwind readonly }
+; TUNIT: attributes #[[ATTR6]] = { nofree nosync nounwind memory(argmem: read) }
 ; TUNIT: attributes #[[ATTR7]] = { nounwind willreturn }
-; TUNIT: attributes #[[ATTR8:[0-9]+]] = { nounwind readonly willreturn }
-; TUNIT: attributes #[[ATTR9]] = { nofree norecurse nosync nounwind null_pointer_is_valid readnone willreturn }
+; TUNIT: attributes #[[ATTR8:[0-9]+]] = { nounwind willreturn memory(read) }
+; TUNIT: attributes #[[ATTR9]] = { nofree norecurse nosync nounwind null_pointer_is_valid willreturn memory(none) }
 ; TUNIT: attributes #[[ATTR10]] = { naked }
 ; TUNIT: attributes #[[ATTR11]] = { noinline optnone }
-; TUNIT: attributes #[[ATTR12]] = { nofree nounwind readonly willreturn }
+; TUNIT: attributes #[[ATTR12]] = { nofree nounwind willreturn memory(read) }
 ; TUNIT: attributes #[[ATTR13]] = { willreturn }
-; TUNIT: attributes #[[ATTR14]] = { nofree nosync nounwind readonly }
-; TUNIT: attributes #[[ATTR15]] = { readonly willreturn }
+; TUNIT: attributes #[[ATTR14]] = { nofree nosync nounwind }
 ;.
-; CGSCC: attributes #[[ATTR0:[0-9]+]] = { inaccessiblememonly nocallback nofree nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { inaccessiblememonly nofree norecurse nosync nounwind willreturn }
+; CGSCC: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite) }
+; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite) }
 ; CGSCC: attributes #[[ATTR3]] = { noreturn }
 ; CGSCC: attributes #[[ATTR4]] = { nounwind }
-; CGSCC: attributes #[[ATTR5]] = { argmemonly nofree nosync nounwind readonly }
+; CGSCC: attributes #[[ATTR5]] = { nofree nosync nounwind memory(argmem: read) }
 ; CGSCC: attributes #[[ATTR6]] = { nounwind willreturn }
-; CGSCC: attributes #[[ATTR7:[0-9]+]] = { nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR8]] = { nofree norecurse nosync nounwind null_pointer_is_valid readnone willreturn }
-; CGSCC: attributes #[[ATTR9]] = { nofree nosync nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR7:[0-9]+]] = { nounwind willreturn memory(read) }
+; CGSCC: attributes #[[ATTR8]] = { nofree norecurse nosync nounwind null_pointer_is_valid willreturn memory(none) }
+; CGSCC: attributes #[[ATTR9]] = { nofree nosync nounwind willreturn memory(none) }
 ; CGSCC: attributes #[[ATTR10]] = { naked }
 ; CGSCC: attributes #[[ATTR11]] = { noinline optnone }
-; CGSCC: attributes #[[ATTR12]] = { nofree nounwind readonly willreturn }
+; CGSCC: attributes #[[ATTR12]] = { nofree nounwind willreturn memory(read) }
 ; CGSCC: attributes #[[ATTR13]] = { willreturn }
-; CGSCC: attributes #[[ATTR14]] = { nofree nosync nounwind readonly }
-; CGSCC: attributes #[[ATTR15]] = { readonly willreturn }
-; CGSCC: attributes #[[ATTR16]] = { readnone willreturn }
+; CGSCC: attributes #[[ATTR14]] = { nofree nosync nounwind }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/norecurse.ll b/llvm/test/Transforms/Attributor/norecurse.ll
index 8361c4c1547e3..ba9cbb9dbaac2 100644
--- a/llvm/test/Transforms/Attributor/norecurse.ll
+++ b/llvm/test/Transforms/Attributor/norecurse.ll
@@ -3,7 +3,7 @@
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,CGSCC
 
 define i32 @leaf() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@leaf
 ; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    ret i32 1
@@ -12,7 +12,7 @@ define i32 @leaf() {
 }
 
 define i32 @self_rec() {
-; CHECK: Function Attrs: nofree nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@self_rec
 ; CHECK-SAME: () #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:    ret i32 4
@@ -22,12 +22,12 @@ define i32 @self_rec() {
 }
 
 define i32 @indirect_rec() {
-; TUNIT: Function Attrs: nofree nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@indirect_rec
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i32 undef
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@indirect_rec
 ; CGSCC-SAME: () #[[ATTR0]] {
 ; CGSCC-NEXT:    ret i32 undef
@@ -36,12 +36,12 @@ define i32 @indirect_rec() {
   ret i32 %a
 }
 define i32 @indirect_rec2() {
-; TUNIT: Function Attrs: nofree nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@indirect_rec2
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i32 undef
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@indirect_rec2
 ; CGSCC-SAME: () #[[ATTR0]] {
 ; CGSCC-NEXT:    ret i32 undef
@@ -51,7 +51,7 @@ define i32 @indirect_rec2() {
 }
 
 define i32 @extern() {
-; CHECK: Function Attrs: nosync readnone
+; CHECK: Function Attrs: nosync memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@extern
 ; CHECK-SAME: () #[[ATTR2:[0-9]+]] {
 ; CHECK-NEXT:    [[A:%.*]] = call i32 @k()
@@ -66,7 +66,7 @@ define i32 @extern() {
 declare i32 @k() readnone
 
 define void @intrinsic(i8* %dest, i8* %src, i32 %len) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@intrinsic
 ; CHECK-SAME: (i8* nocapture nofree writeonly [[DEST:%.*]], i8* nocapture nofree readonly [[SRC:%.*]], i32 [[LEN:%.*]]) #[[ATTR4:[0-9]+]] {
 ; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noalias nocapture nofree writeonly [[DEST]], i8* noalias nocapture nofree readonly [[SRC]], i32 [[LEN]], i1 noundef false) #[[ATTR9:[0-9]+]]
@@ -81,7 +81,7 @@ define void @intrinsic(i8* %dest, i8* %src, i32 %len) {
 declare void @llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i1)
 
 define internal i32 @called_by_norecurse() {
-; CHECK: Function Attrs: norecurse nosync readnone
+; CHECK: Function Attrs: norecurse nosync memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@called_by_norecurse
 ; CHECK-SAME: () #[[ATTR6:[0-9]+]] {
 ; CHECK-NEXT:    [[A:%.*]] = call i32 @k()
@@ -91,13 +91,13 @@ define internal i32 @called_by_norecurse() {
   ret i32 %a
 }
 define void @m() norecurse {
-; TUNIT: Function Attrs: norecurse nosync readnone
+; TUNIT: Function Attrs: norecurse nosync memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@m
 ; TUNIT-SAME: () #[[ATTR6]] {
-; TUNIT-NEXT:    [[A:%.*]] = call i32 @called_by_norecurse() #[[ATTR2]]
+; TUNIT-NEXT:    [[A:%.*]] = call i32 @called_by_norecurse() #[[ATTR10:[0-9]+]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: norecurse nosync readnone
+; CGSCC: Function Attrs: norecurse nosync memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@m
 ; CGSCC-SAME: () #[[ATTR6]] {
 ; CGSCC-NEXT:    [[A:%.*]] = call i32 @called_by_norecurse()
@@ -108,13 +108,13 @@ define void @m() norecurse {
 }
 
 define internal i32 @called_by_norecurse_indirectly() {
-; TUNIT: Function Attrs: norecurse nosync readnone
+; TUNIT: Function Attrs: norecurse nosync memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@called_by_norecurse_indirectly
 ; TUNIT-SAME: () #[[ATTR6]] {
 ; TUNIT-NEXT:    [[A:%.*]] = call i32 @k()
 ; TUNIT-NEXT:    ret i32 [[A]]
 ;
-; CGSCC: Function Attrs: nosync readnone
+; CGSCC: Function Attrs: nosync memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@called_by_norecurse_indirectly
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    [[A:%.*]] = call i32 @k()
@@ -124,13 +124,13 @@ define internal i32 @called_by_norecurse_indirectly() {
   ret i32 %a
 }
 define internal i32 @o() {
-; TUNIT: Function Attrs: norecurse nosync readnone
+; TUNIT: Function Attrs: norecurse nosync memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@o
 ; TUNIT-SAME: () #[[ATTR6]] {
-; TUNIT-NEXT:    [[A:%.*]] = call i32 @called_by_norecurse_indirectly() #[[ATTR2]]
+; TUNIT-NEXT:    [[A:%.*]] = call i32 @called_by_norecurse_indirectly() #[[ATTR10]]
 ; TUNIT-NEXT:    ret i32 [[A]]
 ;
-; CGSCC: Function Attrs: norecurse nosync readnone
+; CGSCC: Function Attrs: norecurse nosync memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@o
 ; CGSCC-SAME: () #[[ATTR6]] {
 ; CGSCC-NEXT:    [[A:%.*]] = call i32 @called_by_norecurse_indirectly()
@@ -140,13 +140,13 @@ define internal i32 @o() {
   ret i32 %a
 }
 define i32 @p() norecurse {
-; TUNIT: Function Attrs: norecurse nosync readnone
+; TUNIT: Function Attrs: norecurse nosync memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@p
 ; TUNIT-SAME: () #[[ATTR6]] {
-; TUNIT-NEXT:    [[A:%.*]] = call i32 @o() #[[ATTR2]]
+; TUNIT-NEXT:    [[A:%.*]] = call i32 @o() #[[ATTR10]]
 ; TUNIT-NEXT:    ret i32 [[A]]
 ;
-; CGSCC: Function Attrs: norecurse nosync readnone
+; CGSCC: Function Attrs: norecurse nosync memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@p
 ; CGSCC-SAME: () #[[ATTR6]] {
 ; CGSCC-NEXT:    [[A:%.*]] = call i32 @o()
@@ -157,7 +157,7 @@ define i32 @p() norecurse {
 }
 
 define void @f(i32 %x)  {
-; TUNIT: Function Attrs: nofree nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@f
 ; TUNIT-SAME: (i32 [[X:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
@@ -170,7 +170,7 @@ define void @f(i32 %x)  {
 ; TUNIT:       if.end:
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@f
 ; CGSCC-SAME: (i32 [[X:%.*]]) #[[ATTR0]] {
 ; CGSCC-NEXT:  entry:
@@ -198,7 +198,7 @@ if.end:
 }
 
 define void @g() norecurse {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@g
 ; CHECK-SAME: () #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -241,7 +241,7 @@ define i32 @eval_func2(i32 (i32)* , i32) local_unnamed_addr null_pointer_is_vali
 ; Call an unknown function in a dead block.
 declare void @unknown()
 define i32 @call_unknown_in_dead_block() local_unnamed_addr {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@call_unknown_in_dead_block
 ; CHECK-SAME: () local_unnamed_addr #[[ATTR0]] {
 ; CHECK-NEXT:    ret i32 0
@@ -307,14 +307,26 @@ f:
 }
 
 ;.
-; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CHECK: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
-; CHECK: attributes #[[ATTR2]] = { nosync readnone }
-; CHECK: attributes #[[ATTR3:[0-9]+]] = { readnone }
-; CHECK: attributes #[[ATTR4]] = { argmemonly nofree norecurse nosync nounwind willreturn }
-; CHECK: attributes #[[ATTR5:[0-9]+]] = { argmemonly nocallback nofree nounwind willreturn }
-; CHECK: attributes #[[ATTR6]] = { norecurse nosync readnone }
-; CHECK: attributes #[[ATTR7]] = { null_pointer_is_valid }
-; CHECK: attributes #[[ATTR8:[0-9]+]] = { norecurse }
-; CHECK: attributes #[[ATTR9]] = { willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR2]] = { nosync memory(none) }
+; TUNIT: attributes #[[ATTR3:[0-9]+]] = { memory(none) }
+; TUNIT: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) }
+; TUNIT: attributes #[[ATTR5:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
+; TUNIT: attributes #[[ATTR6]] = { norecurse nosync memory(none) }
+; TUNIT: attributes #[[ATTR7]] = { null_pointer_is_valid }
+; TUNIT: attributes #[[ATTR8]] = { norecurse }
+; TUNIT: attributes #[[ATTR9]] = { willreturn }
+; TUNIT: attributes #[[ATTR10]] = { nosync }
+;.
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { nosync memory(none) }
+; CGSCC: attributes #[[ATTR3:[0-9]+]] = { memory(none) }
+; CGSCC: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR5:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR6]] = { norecurse nosync memory(none) }
+; CGSCC: attributes #[[ATTR7]] = { null_pointer_is_valid }
+; CGSCC: attributes #[[ATTR8]] = { norecurse }
+; CGSCC: attributes #[[ATTR9]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/noreturn.ll b/llvm/test/Transforms/Attributor/noreturn.ll
index 8d1d275c31f99..d3ef7f354d36c 100644
--- a/llvm/test/Transforms/Attributor/noreturn.ll
+++ b/llvm/test/Transforms/Attributor/noreturn.ll
@@ -15,7 +15,7 @@ target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 ; }
 ;
 define void @srec0() #0 {
-; CHECK: Function Attrs: nofree noinline nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@srec0
 ; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -34,7 +34,7 @@ entry:
 ; }
 ;
 define i32 @srec16(i32 %a) #0 {
-; CHECK: Function Attrs: nofree noinline noreturn nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline noreturn nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@srec16
 ; CHECK-SAME: (i32 [[A:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -73,7 +73,7 @@ exit:
 ; }
 ;
 define i32 @endless_loop(i32 %a) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse noreturn nosync nounwind readnone uwtable
+; CHECK: Function Attrs: nofree noinline norecurse noreturn nosync nounwind memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@endless_loop
 ; CHECK-SAME: (i32 [[A:%.*]]) #[[ATTR2:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -98,7 +98,7 @@ while.body:                                       ; preds = %entry, %while.body
 ;
 ; FIXME: no-return missing (D65243 should fix this)
 define i32 @dead_return(i32 %a) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse noreturn nosync nounwind readnone uwtable
+; CHECK: Function Attrs: nofree noinline norecurse noreturn nosync nounwind memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@dead_return
 ; CHECK-SAME: (i32 [[A:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:  entry:
@@ -126,7 +126,7 @@ return:                                           ; No predecessors!
 ; }
 ;
 define i32 @multiple_noreturn_calls(i32 %a) #0 {
-; TUNIT: Function Attrs: nofree noinline norecurse noreturn nosync nounwind readnone willreturn uwtable
+; TUNIT: Function Attrs: nofree noinline norecurse noreturn nosync nounwind willreturn memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@multiple_noreturn_calls
 ; TUNIT-SAME: (i32 [[A:%.*]]) #[[ATTR3:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
@@ -139,7 +139,7 @@ define i32 @multiple_noreturn_calls(i32 %a) #0 {
 ; TUNIT:       cond.end:
 ; TUNIT-NEXT:    unreachable
 ;
-; CGSCC: Function Attrs: nofree noinline noreturn nosync nounwind readnone willreturn uwtable
+; CGSCC: Function Attrs: nofree noinline noreturn nosync nounwind willreturn memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@multiple_noreturn_calls
 ; CGSCC-SAME: (i32 [[A:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:  entry:
@@ -174,7 +174,7 @@ cond.end:                                         ; preds = %cond.false, %cond.t
 ; FIXME: we should derive "UB" as an argument and report it to the user on request.
 
 define i32 @endless_loop_but_willreturn() willreturn {
-; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@endless_loop_but_willreturn
 ; TUNIT-SAME: () #[[ATTR4:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
@@ -182,7 +182,7 @@ define i32 @endless_loop_but_willreturn() willreturn {
 ; TUNIT:       while.body:
 ; TUNIT-NEXT:    br label [[WHILE_BODY]]
 ;
-; CGSCC: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse noreturn nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@endless_loop_but_willreturn
 ; CGSCC-SAME: () #[[ATTR3:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -199,13 +199,13 @@ while.body:                                       ; preds = %entry, %while.body
 
 ; TEST 6b: willreturn means *not* no-return or UB
 define i32 @UB_and_willreturn() willreturn {
-; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@UB_and_willreturn
 ; TUNIT-SAME: () #[[ATTR4]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    unreachable
 ;
-; CGSCC: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse noreturn nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@UB_and_willreturn
 ; CGSCC-SAME: () #[[ATTR3]] {
 ; CGSCC-NEXT:  entry:
@@ -217,14 +217,14 @@ entry:
 
 attributes #0 = { noinline nounwind uwtable }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree noinline nosync nounwind readnone willreturn uwtable }
-; TUNIT: attributes #[[ATTR1]] = { nofree noinline noreturn nosync nounwind readnone willreturn uwtable }
-; TUNIT: attributes #[[ATTR2]] = { nofree noinline norecurse noreturn nosync nounwind readnone uwtable }
-; TUNIT: attributes #[[ATTR3]] = { nofree noinline norecurse noreturn nosync nounwind readnone willreturn uwtable }
-; TUNIT: attributes #[[ATTR4]] = { nofree norecurse noreturn nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree noinline nosync nounwind willreturn memory(none) uwtable }
+; TUNIT: attributes #[[ATTR1]] = { nofree noinline noreturn nosync nounwind willreturn memory(none) uwtable }
+; TUNIT: attributes #[[ATTR2]] = { nofree noinline norecurse noreturn nosync nounwind memory(none) uwtable }
+; TUNIT: attributes #[[ATTR3]] = { nofree noinline norecurse noreturn nosync nounwind willreturn memory(none) uwtable }
+; TUNIT: attributes #[[ATTR4]] = { nofree norecurse noreturn nosync nounwind willreturn memory(none) }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree noinline nosync nounwind readnone willreturn uwtable }
-; CGSCC: attributes #[[ATTR1]] = { nofree noinline noreturn nosync nounwind readnone willreturn uwtable }
-; CGSCC: attributes #[[ATTR2]] = { nofree noinline norecurse noreturn nosync nounwind readnone uwtable }
-; CGSCC: attributes #[[ATTR3]] = { nofree norecurse noreturn nosync nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree noinline nosync nounwind willreturn memory(none) uwtable }
+; CGSCC: attributes #[[ATTR1]] = { nofree noinline noreturn nosync nounwind willreturn memory(none) uwtable }
+; CGSCC: attributes #[[ATTR2]] = { nofree noinline norecurse noreturn nosync nounwind memory(none) uwtable }
+; CGSCC: attributes #[[ATTR3]] = { nofree norecurse noreturn nosync nounwind willreturn memory(none) }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/noreturn_async.ll b/llvm/test/Transforms/Attributor/noreturn_async.ll
index cae672f644a17..859c8f69b0dde 100644
--- a/llvm/test/Transforms/Attributor/noreturn_async.ll
+++ b/llvm/test/Transforms/Attributor/noreturn_async.ll
@@ -149,6 +149,6 @@ declare dso_local i32 @printf(i8* %_Format, ...)
 declare i32 @llvm.eh.exceptioncode(token)
 ;.
 ; CHECK: attributes #[[ATTR0:[0-9]+]] = { noreturn }
-; CHECK: attributes #[[ATTR1:[0-9]+]] = { nounwind readnone }
+; CHECK: attributes #[[ATTR1:[0-9]+]] = { nounwind memory(none) }
 ; CHECK: attributes #[[ATTR2:[0-9]+]] = { nofree nosync nounwind }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/noreturn_sync.ll b/llvm/test/Transforms/Attributor/noreturn_sync.ll
index 7c6c7a8272523..681dbf5980c7a 100644
--- a/llvm/test/Transforms/Attributor/noreturn_sync.ll
+++ b/llvm/test/Transforms/Attributor/noreturn_sync.ll
@@ -139,6 +139,6 @@ declare dso_local i32 @printf(i8* %_Format, ...)
 
 declare i32 @llvm.eh.exceptioncode(token)
 ;.
-; CHECK: attributes #[[ATTR0:[0-9]+]] = { nounwind readnone }
+; CHECK: attributes #[[ATTR0:[0-9]+]] = { nounwind memory(none) }
 ; CHECK: attributes #[[ATTR1:[0-9]+]] = { nofree nosync nounwind }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/nosync.ll b/llvm/test/Transforms/Attributor/nosync.ll
index e3a1f82156da6..324c49fe0151c 100644
--- a/llvm/test/Transforms/Attributor/nosync.ll
+++ b/llvm/test/Transforms/Attributor/nosync.ll
@@ -30,7 +30,7 @@ target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 ; CHECK: @[[A:[a-zA-Z0-9_$"\\.-]+]] = common global i32 0, align 4
 ;.
 define i32* @foo(%struct.ST* %s) nounwind uwtable readnone optsize ssp {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind optsize readnone ssp willreturn uwtable
+; CHECK: Function Attrs: nofree norecurse nosync nounwind optsize ssp willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@foo
 ; CHECK-SAME: (%struct.ST* nofree readnone "no-capture-maybe-returned" [[S:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -50,7 +50,7 @@ entry:
 ; }
 
 define i32 @load_monotonic(i32* nocapture readonly %0) norecurse nounwind uwtable {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn uwtable
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@load_monotonic
 ; CHECK-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[TMP0:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:    [[TMP2:%.*]] = load atomic i32, i32* [[TMP0]] monotonic, align 4
@@ -68,7 +68,7 @@ define i32 @load_monotonic(i32* nocapture readonly %0) norecurse nounwind uwtabl
 ; }
 
 define void @store_monotonic(i32* nocapture %0) norecurse nounwind uwtable {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn uwtable
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@store_monotonic
 ; CHECK-SAME: (i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[TMP0:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:    store atomic i32 10, i32* [[TMP0]] monotonic, align 4
@@ -86,7 +86,7 @@ define void @store_monotonic(i32* nocapture %0) norecurse nounwind uwtable {
 ; }
 
 define i32 @load_acquire(i32* nocapture readonly %0) norecurse nounwind uwtable {
-; CHECK: Function Attrs: argmemonly nofree norecurse nounwind willreturn uwtable
+; CHECK: Function Attrs: nofree norecurse nounwind willreturn memory(argmem: readwrite) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@load_acquire
 ; CHECK-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[TMP0:%.*]]) #[[ATTR2:[0-9]+]] {
 ; CHECK-NEXT:    [[TMP2:%.*]] = load atomic i32, i32* [[TMP0]] acquire, align 4
@@ -103,7 +103,7 @@ define i32 @load_acquire(i32* nocapture readonly %0) norecurse nounwind uwtable
 ; }
 
 define void @load_release(i32* nocapture %0) norecurse nounwind uwtable {
-; CHECK: Function Attrs: argmemonly nofree norecurse nounwind willreturn uwtable
+; CHECK: Function Attrs: nofree norecurse nounwind willreturn memory(argmem: readwrite) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@load_release
 ; CHECK-SAME: (i32* nocapture nofree noundef writeonly align 4 [[TMP0:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    store atomic volatile i32 10, i32* [[TMP0]] release, align 4
@@ -116,7 +116,7 @@ define void @load_release(i32* nocapture %0) norecurse nounwind uwtable {
 ; TEST 6 - negative volatile, relaxed atomic
 
 define void @load_volatile_release(i32* nocapture %0) norecurse nounwind uwtable {
-; CHECK: Function Attrs: argmemonly nofree norecurse nounwind willreturn uwtable
+; CHECK: Function Attrs: nofree norecurse nounwind willreturn memory(argmem: readwrite) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@load_volatile_release
 ; CHECK-SAME: (i32* nocapture nofree noundef writeonly align 4 [[TMP0:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    store atomic volatile i32 10, i32* [[TMP0]] release, align 4
@@ -133,7 +133,7 @@ define void @load_volatile_release(i32* nocapture %0) norecurse nounwind uwtable
 ; }
 
 define void @volatile_store(i32* %0) norecurse nounwind uwtable {
-; CHECK: Function Attrs: argmemonly nofree norecurse nounwind willreturn uwtable
+; CHECK: Function Attrs: nofree norecurse nounwind willreturn memory(argmem: readwrite) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@volatile_store
 ; CHECK-SAME: (i32* nofree noundef align 4 [[TMP0:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    store volatile i32 14, i32* [[TMP0]], align 4
@@ -151,7 +151,7 @@ define void @volatile_store(i32* %0) norecurse nounwind uwtable {
 ; }
 
 define i32 @volatile_load(i32* %0) norecurse nounwind uwtable {
-; CHECK: Function Attrs: argmemonly nofree norecurse nounwind willreturn uwtable
+; CHECK: Function Attrs: nofree norecurse nounwind willreturn memory(argmem: readwrite) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@volatile_load
 ; CHECK-SAME: (i32* nofree noundef align 4 [[TMP0:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    [[TMP2:%.*]] = load volatile i32, i32* [[TMP0]], align 4
@@ -199,14 +199,14 @@ define void @call_might_sync() nounwind uwtable noinline {
 ; volatile operation in same scc but dead. Call volatile_load defined in TEST 8.
 
 define i32 @scc1(i32* %0) noinline nounwind uwtable {
-; TUNIT: Function Attrs: argmemonly nofree noinline nounwind uwtable
+; TUNIT: Function Attrs: nofree noinline nounwind memory(argmem: readwrite) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@scc1
 ; TUNIT-SAME: (i32* nofree [[TMP0:%.*]]) #[[ATTR5:[0-9]+]] {
 ; TUNIT-NEXT:    tail call void @scc2(i32* nofree [[TMP0]]) #[[ATTR19:[0-9]+]]
 ; TUNIT-NEXT:    [[VAL:%.*]] = tail call i32 @volatile_load(i32* nofree align 4 [[TMP0]]) #[[ATTR19]]
 ; TUNIT-NEXT:    ret i32 [[VAL]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree noinline nounwind uwtable
+; CGSCC: Function Attrs: nofree noinline nounwind memory(argmem: readwrite) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@scc1
 ; CGSCC-SAME: (i32* nofree [[TMP0:%.*]]) #[[ATTR5:[0-9]+]] {
 ; CGSCC-NEXT:    tail call void @scc2(i32* nofree [[TMP0]]) #[[ATTR19:[0-9]+]]
@@ -219,7 +219,7 @@ define i32 @scc1(i32* %0) noinline nounwind uwtable {
 }
 
 define void @scc2(i32* %0) noinline nounwind uwtable {
-; CHECK: Function Attrs: argmemonly nofree noinline nounwind uwtable
+; CHECK: Function Attrs: nofree noinline nounwind memory(argmem: readwrite) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@scc2
 ; CHECK-SAME: (i32* nofree [[TMP0:%.*]]) #[[ATTR5:[0-9]+]] {
 ; CHECK-NEXT:    [[TMP2:%.*]] = tail call i32 @scc1(i32* nofree [[TMP0]]) #[[ATTR19:[0-9]+]]
@@ -349,7 +349,7 @@ declare void @llvm.memset(i8* %dest, i8 %val, i32 %len, i1 %isvolatile)
 ; It is odd to add nocapture but a result of the llvm.memcpy nocapture.
 ;
 define i32 @memcpy_volatile(i8* %ptr1, i8* %ptr2) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nounwind willreturn
+; CHECK: Function Attrs: nofree norecurse nounwind willreturn memory(argmem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@memcpy_volatile
 ; CHECK-SAME: (i8* nocapture nofree writeonly [[PTR1:%.*]], i8* nocapture nofree readonly [[PTR2:%.*]]) #[[ATTR10:[0-9]+]] {
 ; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noalias nocapture nofree writeonly [[PTR1]], i8* noalias nocapture nofree readonly [[PTR2]], i32 noundef 8, i1 noundef true) #[[ATTR20:[0-9]+]]
@@ -364,10 +364,10 @@ define i32 @memcpy_volatile(i8* %ptr1, i8* %ptr2) {
 ; It is odd to add nocapture but a result of the llvm.memset nocapture.
 ;
 define i32 @memset_non_volatile(i8* %ptr1, i8 %val) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@memset_non_volatile
 ; CHECK-SAME: (i8* nocapture nofree writeonly [[PTR1:%.*]], i8 [[VAL:%.*]]) #[[ATTR11:[0-9]+]] {
-; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* nocapture nofree writeonly [[PTR1]], i8 [[VAL]], i32 noundef 8, i1 noundef false) #[[ATTR21:[0-9]+]]
+; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* nocapture nofree writeonly [[PTR1]], i8 [[VAL]], i32 noundef 8, i1 noundef false) #[[ATTR20]]
 ; CHECK-NEXT:    ret i32 4
 ;
   call void @llvm.memset(i8* %ptr1, i8 %val, i32 8, i1 0)
@@ -390,7 +390,7 @@ declare void @readnone_test() convergent readnone
 
 ; TEST 17 - negative. Convergent
 define void @convergent_readnone(){
-; CHECK: Function Attrs: readnone
+; CHECK: Function Attrs: memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@convergent_readnone
 ; CHECK-SAME: () #[[ATTR13:[0-9]+]] {
 ; CHECK-NEXT:    call void @readnone_test()
@@ -423,7 +423,7 @@ declare float @llvm.cos(float %val) readnone
 ; TEST 19 - positive, readnone & non-convergent intrinsic.
 
 define i32 @cos_test(float %x) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@cos_test
 ; CHECK-SAME: (float [[X:%.*]]) #[[ATTR15:[0-9]+]] {
 ; CHECK-NEXT:    ret i32 4
@@ -433,37 +433,35 @@ define i32 @cos_test(float %x) {
 }
 
 define float @cos_test2(float %x) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@cos_test2
 ; CHECK-SAME: (float [[X:%.*]]) #[[ATTR15]] {
-; CHECK-NEXT:    [[C:%.*]] = call float @llvm.cos.f32(float [[X]]) #[[ATTR22:[0-9]+]]
+; CHECK-NEXT:    [[C:%.*]] = call float @llvm.cos.f32(float [[X]]) #[[ATTR20]]
 ; CHECK-NEXT:    ret float [[C]]
 ;
   %c = call float @llvm.cos(float %x)
   ret float %c
 }
 ;.
-; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind optsize readnone ssp willreturn uwtable }
-; CHECK: attributes #[[ATTR1]] = { argmemonly nofree norecurse nosync nounwind willreturn uwtable }
-; CHECK: attributes #[[ATTR2]] = { argmemonly nofree norecurse nounwind willreturn uwtable }
+; CHECK: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind optsize ssp willreturn memory(none) uwtable }
+; CHECK: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable }
+; CHECK: attributes #[[ATTR2]] = { nofree norecurse nounwind willreturn memory(argmem: readwrite) uwtable }
 ; CHECK: attributes #[[ATTR3]] = { noinline nosync nounwind uwtable }
 ; CHECK: attributes #[[ATTR4]] = { noinline nounwind uwtable }
-; CHECK: attributes #[[ATTR5]] = { argmemonly nofree noinline nounwind uwtable }
+; CHECK: attributes #[[ATTR5]] = { nofree noinline nounwind memory(argmem: readwrite) uwtable }
 ; CHECK: attributes #[[ATTR6]] = { nofree norecurse nounwind willreturn }
 ; CHECK: attributes #[[ATTR7]] = { nofree norecurse nounwind }
 ; CHECK: attributes #[[ATTR8]] = { nofree norecurse nosync nounwind willreturn }
 ; CHECK: attributes #[[ATTR9]] = { nofree norecurse nosync nounwind }
-; CHECK: attributes #[[ATTR10]] = { argmemonly nofree norecurse nounwind willreturn }
-; CHECK: attributes #[[ATTR11]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; CHECK: attributes #[[ATTR12:[0-9]+]] = { convergent readnone }
-; CHECK: attributes #[[ATTR13]] = { readnone }
+; CHECK: attributes #[[ATTR10]] = { nofree norecurse nounwind willreturn memory(argmem: readwrite) }
+; CHECK: attributes #[[ATTR11]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; CHECK: attributes #[[ATTR12:[0-9]+]] = { convergent memory(none) }
+; CHECK: attributes #[[ATTR13]] = { memory(none) }
 ; CHECK: attributes #[[ATTR14]] = { nounwind }
-; CHECK: attributes #[[ATTR15]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CHECK: attributes #[[ATTR16:[0-9]+]] = { argmemonly nocallback nofree nounwind willreturn }
-; CHECK: attributes #[[ATTR17:[0-9]+]] = { argmemonly nocallback nofree nounwind willreturn writeonly }
-; CHECK: attributes #[[ATTR18:[0-9]+]] = { nocallback nofree nosync nounwind readnone speculatable willreturn }
+; CHECK: attributes #[[ATTR15]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CHECK: attributes #[[ATTR16:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
+; CHECK: attributes #[[ATTR17:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) }
+; CHECK: attributes #[[ATTR18:[0-9]+]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
 ; CHECK: attributes #[[ATTR19]] = { nofree nounwind }
 ; CHECK: attributes #[[ATTR20]] = { willreturn }
-; CHECK: attributes #[[ATTR21]] = { willreturn writeonly }
-; CHECK: attributes #[[ATTR22]] = { readnone willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/nounwind.ll b/llvm/test/Transforms/Attributor/nounwind.ll
index 1b4b4d19bdb91..0e1002535dd38 100644
--- a/llvm/test/Transforms/Attributor/nounwind.ll
+++ b/llvm/test/Transforms/Attributor/nounwind.ll
@@ -4,7 +4,7 @@
 
 ; TEST 1
 define i32 @foo1() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@foo1
 ; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    ret i32 1
@@ -14,12 +14,12 @@ define i32 @foo1() {
 
 ; TEST 2
 define i32 @scc1_foo() {
-; TUNIT: Function Attrs: nofree nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@scc1_foo
 ; TUNIT-SAME: () #[[ATTR1:[0-9]+]] {
 ; TUNIT-NEXT:    ret i32 1
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@scc1_foo
 ; CGSCC-SAME: () #[[ATTR0]] {
 ; CGSCC-NEXT:    ret i32 1
@@ -31,12 +31,12 @@ define i32 @scc1_foo() {
 
 ; TEST 3
 define i32 @scc1_bar() {
-; TUNIT: Function Attrs: nofree nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@scc1_bar
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i32 1
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@scc1_bar
 ; CGSCC-SAME: () #[[ATTR0]] {
 ; CGSCC-NEXT:    ret i32 1
@@ -145,8 +145,8 @@ declare i8* @__cxa_begin_catch(i8*)
 
 declare void @__cxa_end_catch()
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(none) }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/openmp_parallel.ll b/llvm/test/Transforms/Attributor/openmp_parallel.ll
index 1d0c3c880c891..01de35d791721 100644
--- a/llvm/test/Transforms/Attributor/openmp_parallel.ll
+++ b/llvm/test/Transforms/Attributor/openmp_parallel.ll
@@ -69,7 +69,7 @@ define internal void @.omp_outlined.(i32* noalias nocapture readonly %.global_ti
 ; TUNIT-NEXT:    br label [[OMP_PRECOND_THEN:%.*]]
 ; TUNIT:       omp.precond.then:
 ; TUNIT-NEXT:    [[TMP0:%.*]] = bitcast i32* [[DOTOMP_LB]] to i8*
-; TUNIT-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[TMP0]])
+; TUNIT-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[TMP0]]) #[[ATTR3:[0-9]+]]
 ; TUNIT-NEXT:    store i32 0, i32* [[DOTOMP_LB]], align 4
 ; TUNIT-NEXT:    [[TMP1:%.*]] = bitcast i32* [[DOTOMP_UB]] to i8*
 ; TUNIT-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[TMP1]])
@@ -129,7 +129,7 @@ define internal void @.omp_outlined.(i32* noalias nocapture readonly %.global_ti
 ; CGSCC-NEXT:    br i1 [[CMP]], label [[OMP_PRECOND_THEN:%.*]], label [[OMP_PRECOND_END:%.*]]
 ; CGSCC:       omp.precond.then:
 ; CGSCC-NEXT:    [[TMP1:%.*]] = bitcast i32* [[DOTOMP_LB]] to i8*
-; CGSCC-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[TMP1]])
+; CGSCC-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[TMP1]]) #[[ATTR3:[0-9]+]]
 ; CGSCC-NEXT:    store i32 0, i32* [[DOTOMP_LB]], align 4
 ; CGSCC-NEXT:    [[TMP2:%.*]] = bitcast i32* [[DOTOMP_UB]] to i8*
 ; CGSCC-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[TMP2]])
@@ -264,7 +264,8 @@ attributes #2 = { nounwind }
 ;.
 ; CHECK: attributes #[[ATTR0:[0-9]+]] = { nounwind uwtable }
 ; CHECK: attributes #[[ATTR1:[0-9]+]] = { alwaysinline nofree norecurse nounwind uwtable }
-; CHECK: attributes #[[ATTR2:[0-9]+]] = { argmemonly nocallback nofree nosync nounwind willreturn }
+; CHECK: attributes #[[ATTR2:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
+; CHECK: attributes #[[ATTR3:[0-9]+]] = { memory(readwrite) }
 ;.
 ; CHECK: [[META0:![0-9]+]] = !{i32 7, !"openmp", i32 50}
 ; CHECK: [[META1:![0-9]+]] = !{!2}

diff  --git a/llvm/test/Transforms/Attributor/pointer-info.ll b/llvm/test/Transforms/Attributor/pointer-info.ll
index 5a771dcca7ec5..0b947919ec599 100644
--- a/llvm/test/Transforms/Attributor/pointer-info.ll
+++ b/llvm/test/Transforms/Attributor/pointer-info.ll
@@ -6,7 +6,7 @@
 %struct.test.a = type { %struct.test.b, i32, i8*}
 
 define void @foo(i8* %ptr) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@foo
 ; TUNIT-SAME: (i8* nocapture nofree readnone [[PTR:%.*]]) #[[ATTR0:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
@@ -17,7 +17,7 @@ define void @foo(i8* %ptr) {
 ; TUNIT-NEXT:    tail call void @bar(%struct.test.a* noalias nocapture nofree noundef nonnull readonly byval([[STRUCT_TEST_A]]) align 8 dereferenceable(24) [[TMP0]]) #[[ATTR2:[0-9]+]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@foo
 ; CGSCC-SAME: (i8* nocapture nofree writeonly [[PTR:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -41,7 +41,7 @@ call.br:
 }
 
 define void @bar(%struct.test.a* noundef byval(%struct.test.a) align 8 %dev) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@bar
 ; CHECK-SAME: (%struct.test.a* noalias nocapture nofree noundef nonnull writeonly byval([[STRUCT_TEST_A:%.*]]) align 8 dereferenceable(24) [[DEV:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:    [[TMP1:%.*]] = getelementptr inbounds [[STRUCT_TEST_A]], %struct.test.a* [[DEV]], i64 0, i32 0
@@ -55,11 +55,11 @@ define void @bar(%struct.test.a* noundef byval(%struct.test.a) align 8 %dev) {
   ret void
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR1]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn writeonly }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; TUNIT: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR1]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR2]] = { nounwind willreturn writeonly }
+; CGSCC: attributes #[[ATTR0]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; CGSCC: attributes #[[ATTR2]] = { nounwind willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/potential.ll b/llvm/test/Transforms/Attributor/potential.ll
index 8e8c993fa637b..977eb29f02bff 100644
--- a/llvm/test/Transforms/Attributor/potential.ll
+++ b/llvm/test/Transforms/Attributor/potential.ll
@@ -9,7 +9,7 @@
 ; bool potential_test1(bool c) { return iszero(c ? 1 : -1); }
 
 define internal i1 @iszero1(i32 %c) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@iszero1
 ; CGSCC-SAME: (i32 noundef [[C:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:    [[CMP:%.*]] = icmp eq i32 [[C]], 0
@@ -20,12 +20,12 @@ define internal i1 @iszero1(i32 %c) {
 }
 
 define i1 @potential_test1(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@potential_test1
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR0:[0-9]+]] {
 ; TUNIT-NEXT:    ret i1 false
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@potential_test1
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:    [[ARG:%.*]] = select i1 [[C]], i32 -1, i32 1
@@ -47,7 +47,7 @@ define i1 @potential_test1(i1 %c) {
 ; int potential_test2(int x) { return call_with_two_values(1) + call_with_two_values(-1); }
 
 define internal i32 @iszero2(i32 %c) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@iszero2
 ; CHECK-SAME: (i32 [[C:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[C]], 0
@@ -60,7 +60,7 @@ define internal i32 @iszero2(i32 %c) {
 }
 
 define internal i32 @call_with_two_values(i32 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@call_with_two_values
 ; TUNIT-SAME: (i32 noundef [[C:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    [[CSRET1:%.*]] = call i32 @iszero2(i32 noundef [[C]]) #[[ATTR1:[0-9]+]], !range [[RNG0:![0-9]+]]
@@ -69,7 +69,7 @@ define internal i32 @call_with_two_values(i32 %c) {
 ; TUNIT-NEXT:    [[RET:%.*]] = add i32 [[CSRET1]], [[CSRET2]]
 ; TUNIT-NEXT:    ret i32 [[RET]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@call_with_two_values
 ; CGSCC-SAME: (i32 noundef [[C:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:    [[CSRET1:%.*]] = call i32 @iszero2(i32 noundef [[C]]) #[[ATTR2]]
@@ -86,7 +86,7 @@ define internal i32 @call_with_two_values(i32 %c) {
 }
 
 define i32 @potential_test2(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@potential_test2
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    [[CSRET1:%.*]] = call i32 @call_with_two_values(i32 noundef 1) #[[ATTR1]], !range [[RNG1:![0-9]+]]
@@ -94,7 +94,7 @@ define i32 @potential_test2(i1 %c) {
 ; TUNIT-NEXT:    [[RET:%.*]] = add i32 [[CSRET1]], [[CSRET2]]
 ; TUNIT-NEXT:    ret i32 [[RET]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@potential_test2
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:    [[CSRET1:%.*]] = call i32 @call_with_two_values(i32 noundef 1) #[[ATTR2]]
@@ -120,7 +120,7 @@ define i32 @potential_test2(i1 %c) {
 ; int potential_test3() { return zero_or_one(iszero(0))+zero_or_one(iszero(1)); }
 
 define internal i32 @iszero3(i32 %c) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@iszero3
 ; CGSCC-SAME: (i32 noundef [[C:%.*]]) #[[ATTR0]] {
 ; CGSCC-NEXT:    [[CMP:%.*]] = icmp eq i32 [[C]], 0
@@ -133,7 +133,7 @@ define internal i32 @iszero3(i32 %c) {
 }
 
 define internal i32 @less_than_two(i32 %c) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@less_than_two
 ; CGSCC-SAME: (i32 [[C:%.*]]) #[[ATTR0]] {
 ; CGSCC-NEXT:    [[CMP:%.*]] = icmp slt i32 [[C]], 2
@@ -146,12 +146,12 @@ define internal i32 @less_than_two(i32 %c) {
 }
 
 define i32 @potential_test3() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@potential_test3
 ; TUNIT-SAME: () #[[ATTR0]] {
 ; TUNIT-NEXT:    ret i32 2
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@potential_test3
 ; CGSCC-SAME: () #[[ATTR1]] {
 ; CGSCC-NEXT:    [[CMP1:%.*]] = call i32 @iszero3(i32 noundef 0) #[[ATTR2]]
@@ -181,7 +181,7 @@ define i32 @potential_test3() {
 ; int potential_test7(int c) { return return1or3(c) == return3or4(c); }
 
 define i32 @potential_test4(i32 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@potential_test4
 ; TUNIT-SAME: (i32 [[C:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    [[CSRET:%.*]] = call i32 @return1or3(i32 [[C]]) #[[ATTR1]]
@@ -189,7 +189,7 @@ define i32 @potential_test4(i32 %c) {
 ; TUNIT-NEXT:    [[RET:%.*]] = zext i1 [[FALSE]] to i32
 ; TUNIT-NEXT:    ret i32 [[RET]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@potential_test4
 ; CGSCC-SAME: (i32 [[C:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:    [[CSRET:%.*]] = call i32 @return1or3(i32 [[C]]) #[[ATTR2]]
@@ -204,7 +204,7 @@ define i32 @potential_test4(i32 %c) {
 }
 
 define i32 @potential_test5(i32 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@potential_test5
 ; TUNIT-SAME: (i32 [[C:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    [[CSRET1:%.*]] = call i32 @return1or3(i32 [[C]]) #[[ATTR1]]
@@ -213,7 +213,7 @@ define i32 @potential_test5(i32 %c) {
 ; TUNIT-NEXT:    [[RET:%.*]] = zext i1 [[FALSE]] to i32
 ; TUNIT-NEXT:    ret i32 [[RET]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@potential_test5
 ; CGSCC-SAME: (i32 [[C:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:    [[CSRET1:%.*]] = call i32 @return1or3(i32 [[C]]) #[[ATTR2]]
@@ -230,14 +230,14 @@ define i32 @potential_test5(i32 %c) {
 }
 
 define i1 @potential_test6(i32 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@potential_test6
 ; TUNIT-SAME: (i32 [[C:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    [[CSRET1:%.*]] = call i32 @return1or3(i32 [[C]]) #[[ATTR1]]
 ; TUNIT-NEXT:    [[RET:%.*]] = icmp eq i32 [[CSRET1]], 3
 ; TUNIT-NEXT:    ret i1 [[RET]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@potential_test6
 ; CGSCC-SAME: (i32 [[C:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:    [[CSRET1:%.*]] = call i32 @return1or3(i32 [[C]]) #[[ATTR2]]
@@ -250,7 +250,7 @@ define i1 @potential_test6(i32 %c) {
 }
 
 define i1 @potential_test7(i32 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@potential_test7
 ; TUNIT-SAME: (i32 [[C:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    [[CSRET1:%.*]] = call i32 @return1or3(i32 [[C]]) #[[ATTR1]]
@@ -258,7 +258,7 @@ define i1 @potential_test7(i32 %c) {
 ; TUNIT-NEXT:    [[RET:%.*]] = icmp eq i32 [[CSRET1]], [[CSRET2]]
 ; TUNIT-NEXT:    ret i1 [[RET]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@potential_test7
 ; CGSCC-SAME: (i32 [[C:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:    [[CSRET1:%.*]] = call i32 @return1or3(i32 [[C]]) #[[ATTR2]]
@@ -273,7 +273,7 @@ define i1 @potential_test7(i32 %c) {
 }
 
 define internal i32 @return1or3(i32 %c) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@return1or3
 ; CHECK-SAME: (i32 [[C:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[C]], 0
@@ -286,7 +286,7 @@ define internal i32 @return1or3(i32 %c) {
 }
 
 define internal i32 @return2or4(i32 %c) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@return2or4
 ; CHECK-SAME: (i32 [[C:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[C]], 0
@@ -299,7 +299,7 @@ define internal i32 @return2or4(i32 %c) {
 }
 
 define internal i32 @return3or4(i32 %c) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@return3or4
 ; CHECK-SAME: (i32 [[C:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[C]], 0
@@ -316,7 +316,7 @@ define internal i32 @return3or4(i32 %c) {
 ; propagate argument to callsite argument
 
 define internal i1 @cmp_with_four(i32 %c) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@cmp_with_four
 ; CGSCC-SAME: (i32 [[C:%.*]]) #[[ATTR0]] {
 ; CGSCC-NEXT:    [[CMP:%.*]] = icmp eq i32 [[C]], 4
@@ -327,7 +327,7 @@ define internal i1 @cmp_with_four(i32 %c) {
 }
 
 define internal i1 @wrapper(i32 %c) {
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@wrapper
 ; CGSCC-SAME: (i32 noundef [[C:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:    [[RET:%.*]] = call i1 @cmp_with_four(i32 noundef [[C]]) #[[ATTR2]]
@@ -338,12 +338,12 @@ define internal i1 @wrapper(i32 %c) {
 }
 
 define i1 @potential_test8() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@potential_test8
 ; TUNIT-SAME: () #[[ATTR0]] {
 ; TUNIT-NEXT:    ret i1 false
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@potential_test8
 ; CGSCC-SAME: () #[[ATTR1]] {
 ; CGSCC-NEXT:    [[RES1:%.*]] = call i1 @wrapper(i32 noundef 1) #[[ATTR2]]
@@ -362,7 +362,7 @@ define i1 @potential_test8() {
 }
 
 define i1 @potential_test9() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@potential_test9
 ; CHECK-SAME: () #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -405,7 +405,7 @@ end:
 ;        and returned value of @potential_test10 can be simplified to 0(false)
 
 define internal i32 @may_return_undef(i32 %c) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@may_return_undef
 ; CHECK-SAME: (i32 [[C:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    switch i32 [[C]], label [[OTHERWISE:%.*]] [
@@ -430,14 +430,14 @@ otherwise:
 }
 
 define i1 @potential_test10(i32 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@potential_test10
 ; TUNIT-SAME: (i32 [[C:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    [[RET:%.*]] = call i32 @may_return_undef(i32 [[C]]) #[[ATTR1]]
 ; TUNIT-NEXT:    [[CMP:%.*]] = icmp eq i32 [[RET]], 0
 ; TUNIT-NEXT:    ret i1 [[CMP]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@potential_test10
 ; CGSCC-SAME: (i32 [[C:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:    [[RET:%.*]] = call i32 @may_return_undef(i32 [[C]]) #[[ATTR2]]
@@ -450,7 +450,7 @@ define i1 @potential_test10(i32 %c) {
 }
 
 define i32 @optimize_undef_1(i1 %c) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@optimize_undef_1
 ; CHECK-SAME: (i1 [[C:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
@@ -469,7 +469,7 @@ f:
 }
 
 define i32 @optimize_undef_2(i1 %c) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@optimize_undef_2
 ; CHECK-SAME: (i1 [[C:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
@@ -488,7 +488,7 @@ f:
 }
 
 define i32 @optimize_undef_3(i1 %c) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@optimize_undef_3
 ; CHECK-SAME: (i1 [[C:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
@@ -511,7 +511,7 @@ f:
 
 ; FIXME: returned value can be simplified to 0
 define i32 @potential_test11(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@potential_test11
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    [[ZERO1:%.*]] = call i32 @optimize_undef_1(i1 [[C]]) #[[ATTR1]], !range [[RNG0]]
@@ -521,7 +521,7 @@ define i32 @potential_test11(i1 %c) {
 ; TUNIT-NEXT:    [[ACC2:%.*]] = add i32 [[ACC1]], [[ZERO3]]
 ; TUNIT-NEXT:    ret i32 [[ACC2]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@potential_test11
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:    [[ZERO1:%.*]] = call i32 @optimize_undef_1(i1 [[C]]) #[[ATTR2]]
@@ -540,7 +540,7 @@ define i32 @potential_test11(i1 %c) {
 }
 
 define i32 @optimize_poison_1(i1 %c) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@optimize_poison_1
 ; CHECK-SAME: (i1 [[C:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
@@ -560,12 +560,12 @@ f:
 
 ; FIXME: returned value can be simplified to 0
 define i32 @potential_test12(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@potential_test12
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    ret i32 0
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@potential_test12
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:    [[ZERO:%.*]] = call i32 @optimize_poison_1(i1 [[C]]) #[[ATTR2]]
@@ -581,7 +581,7 @@ define i32 @potential_test12(i1 %c) {
 ; However, we should not simplify `and i32 %c, 3` to `%c`
 
 define internal i32 @potential_test13_callee(i32 %c) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@potential_test13_callee
 ; CHECK-SAME: (i32 [[C:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[RET:%.*]] = and i32 [[C]], 3
@@ -592,13 +592,13 @@ define internal i32 @potential_test13_callee(i32 %c) {
 }
 
 define i32 @potential_test13_caller1() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@potential_test13_caller1
 ; TUNIT-SAME: () #[[ATTR0]] {
 ; TUNIT-NEXT:    [[RET:%.*]] = call i32 @potential_test13_callee(i32 noundef 0) #[[ATTR1]], !range [[RNG0]]
 ; TUNIT-NEXT:    ret i32 [[RET]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@potential_test13_caller1
 ; CGSCC-SAME: () #[[ATTR1]] {
 ; CGSCC-NEXT:    [[RET:%.*]] = call i32 @potential_test13_callee(i32 noundef 0) #[[ATTR2]]
@@ -609,13 +609,13 @@ define i32 @potential_test13_caller1() {
 }
 
 define i32 @potential_test13_caller2() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@potential_test13_caller2
 ; TUNIT-SAME: () #[[ATTR0]] {
 ; TUNIT-NEXT:    [[RET:%.*]] = call i32 @potential_test13_callee(i32 noundef 1) #[[ATTR1]], !range [[RNG0]]
 ; TUNIT-NEXT:    ret i32 [[RET]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@potential_test13_caller2
 ; CGSCC-SAME: () #[[ATTR1]] {
 ; CGSCC-NEXT:    [[RET:%.*]] = call i32 @potential_test13_callee(i32 noundef 1) #[[ATTR2]]
@@ -626,13 +626,13 @@ define i32 @potential_test13_caller2() {
 }
 
 define i32 @potential_test13_caller3() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@potential_test13_caller3
 ; TUNIT-SAME: () #[[ATTR0]] {
 ; TUNIT-NEXT:    [[RET:%.*]] = call i32 @potential_test13_callee(i32 undef) #[[ATTR1]], !range [[RNG0]]
 ; TUNIT-NEXT:    ret i32 [[RET]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@potential_test13_caller3
 ; CGSCC-SAME: () #[[ATTR1]] {
 ; CGSCC-NEXT:    [[RET:%.*]] = call i32 @potential_test13_callee(i32 undef) #[[ATTR2]]
@@ -643,7 +643,7 @@ define i32 @potential_test13_caller3() {
 }
 
 define i1 @potential_test14(i1 %c0, i1 %c1, i1 %c2, i1 %c3) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@potential_test14
 ; CHECK-SAME: (i1 [[C0:%.*]], i1 [[C1:%.*]], i1 [[C2:%.*]], i1 [[C3:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[X0:%.*]] = select i1 [[C0]], i32 0, i32 1
@@ -662,7 +662,7 @@ define i1 @potential_test14(i1 %c0, i1 %c1, i1 %c2, i1 %c3) {
 }
 
 define i1 @potential_test15(i1 %c0, i1 %c1) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@potential_test15
 ; CHECK-SAME: (i1 [[C0:%.*]], i1 [[C1:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[X0:%.*]] = select i1 [[C0]], i32 0, i32 1
@@ -677,7 +677,7 @@ define i1 @potential_test15(i1 %c0, i1 %c1) {
 }
 
 define i1 @potential_test16(i1 %c0, i1 %c1) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@potential_test16
 ; CHECK-SAME: (i1 [[C0:%.*]], i1 [[C1:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[X1:%.*]] = select i1 [[C1]], i32 0, i32 1
@@ -691,12 +691,12 @@ define i1 @potential_test16(i1 %c0, i1 %c1) {
 }
 
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { willreturn }
 ;.
 ; TUNIT: [[RNG0]] = !{i32 0, i32 2}
 ; TUNIT: [[RNG1]] = !{i32 0, i32 3}

diff  --git a/llvm/test/Transforms/Attributor/range.ll b/llvm/test/Transforms/Attributor/range.ll
index f94c986e9e46d..b9d0b6d0c99fb 100644
--- a/llvm/test/Transforms/Attributor/range.ll
+++ b/llvm/test/Transforms/Attributor/range.ll
@@ -5,7 +5,7 @@
 ; FIXME: CGSCC is not looking at callees and calleers even though it could be allowed.
 
 define i32 @test0(i32* %p) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: define {{[^@]+}}@test0
 ; CHECK-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[P:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    [[A:%.*]] = load i32, i32* [[P]], align 4, !range [[RNG0:![0-9]+]]
@@ -16,13 +16,13 @@ define i32 @test0(i32* %p) {
 }
 
 define i32 @test0-range-check(i32* %p) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; TUNIT-LABEL: define {{[^@]+}}@test0-range-check
 ; TUNIT-SAME: (i32* nocapture nofree readonly align 4 [[P:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    [[A:%.*]] = tail call i32 @test0(i32* nocapture nofree readonly align 4 [[P]]) #[[ATTR3:[0-9]+]], !range [[RNG0]]
 ; TUNIT-NEXT:    ret i32 [[A]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@test0-range-check
 ; CGSCC-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[P:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:    [[A:%.*]] = tail call i32 @test0(i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[P]]) #[[ATTR5:[0-9]+]]
@@ -269,7 +269,7 @@ define void @test0-icmp-check(i32* %p){
   ret void
 }
 define i32 @test1(i32* %p) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: define {{[^@]+}}@test1
 ; CHECK-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[P:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[LOAD_10_100:%.*]] = load i32, i32* [[P]], align 4, !range [[RNG1:![0-9]+]]
@@ -285,14 +285,14 @@ define i32 @test1(i32* %p) {
 
 define i1 @test1-check(i32* %p) {
 ;
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; TUNIT-LABEL: define {{[^@]+}}@test1-check
 ; TUNIT-SAME: (i32* nocapture nofree readonly align 4 [[P:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    [[RES:%.*]] = tail call i32 @test1(i32* nocapture nofree readonly align 4 [[P]]) #[[ATTR3]], !range [[RNG2:![0-9]+]]
 ; TUNIT-NEXT:    [[CMP:%.*]] = icmp eq i32 [[RES]], 500
 ; TUNIT-NEXT:    ret i1 [[CMP]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@test1-check
 ; CGSCC-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[P:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:    [[RES:%.*]] = tail call i32 @test1(i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[P]]) #[[ATTR5]]
@@ -317,7 +317,7 @@ define i1 @test1-check(i32* %p) {
 ;  }
 
 define i32 @test2(i32* %p) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: define {{[^@]+}}@test2
 ; CHECK-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[P:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -334,7 +334,7 @@ entry:
 }
 
 define i32 @test2_check(i32* %p) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; TUNIT-LABEL: define {{[^@]+}}@test2_check
 ; TUNIT-SAME: (i32* nocapture nofree readonly align 4 [[P:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:  entry:
@@ -349,7 +349,7 @@ define i32 @test2_check(i32* %p) {
 ; TUNIT-NEXT:    [[RETVAL_0:%.*]] = phi i32 [ 2, [[IF_THEN]] ], [ 3, [[IF_END]] ]
 ; TUNIT-NEXT:    ret i32 [[RETVAL_0]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@test2_check
 ; CGSCC-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[P:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:  entry:
@@ -408,7 +408,7 @@ return:                                           ; preds = %if.end, %if.then
 declare dso_local void @unkown()
 
 define internal i32 @r1(i32) local_unnamed_addr {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@r1
 ; TUNIT-SAME: () local_unnamed_addr #[[ATTR1:[0-9]+]] {
 ; TUNIT-NEXT:    br label [[TMP4:%.*]]
@@ -427,7 +427,7 @@ define internal i32 @r1(i32) local_unnamed_addr {
 ; TUNIT-NEXT:    [[TMP9:%.*]] = icmp eq i32 [[TMP8]], 100
 ; TUNIT-NEXT:    br i1 [[TMP9]], label [[TMP1:%.*]], label [[TMP4]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@r1
 ; CGSCC-SAME: () local_unnamed_addr #[[ATTR2:[0-9]+]] {
 ; CGSCC-NEXT:    br label [[TMP4:%.*]]
@@ -467,7 +467,7 @@ f:
 define void @f1(i32){
 ; TUNIT-LABEL: define {{[^@]+}}@f1
 ; TUNIT-SAME: (i32 [[TMP0:%.*]]) {
-; TUNIT-NEXT:    [[TMP2:%.*]] = tail call i32 @r1() #[[ATTR4:[0-9]+]]
+; TUNIT-NEXT:    [[TMP2:%.*]] = tail call i32 @r1() #[[ATTR3]]
 ; TUNIT-NEXT:    [[TMP3:%.*]] = icmp sgt i32 [[TMP2]], 15
 ; TUNIT-NEXT:    br i1 [[TMP3]], label [[TMP4:%.*]], label [[TMP5:%.*]]
 ; TUNIT:       4:
@@ -478,7 +478,7 @@ define void @f1(i32){
 ;
 ; CGSCC-LABEL: define {{[^@]+}}@f1
 ; CGSCC-SAME: (i32 [[TMP0:%.*]]) {
-; CGSCC-NEXT:    [[TMP2:%.*]] = tail call i32 @r1() #[[ATTR6:[0-9]+]]
+; CGSCC-NEXT:    [[TMP2:%.*]] = tail call i32 @r1() #[[ATTR5]]
 ; CGSCC-NEXT:    [[TMP3:%.*]] = icmp sgt i32 [[TMP2]], 15
 ; CGSCC-NEXT:    br i1 [[TMP3]], label [[TMP4:%.*]], label [[TMP5:%.*]]
 ; CGSCC:       4:
@@ -510,7 +510,7 @@ define void @f1(i32){
 ;   }
 ; }
 define dso_local i32 @test4-f1(i32 %u) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@test4-f1
 ; TUNIT-SAME: (i32 [[U:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
@@ -522,7 +522,7 @@ define dso_local i32 @test4-f1(i32 %u) {
 ; TUNIT-NEXT:    [[RETVAL_0:%.*]] = phi i32 [ [[U]], [[IF_THEN]] ], [ 0, [[ENTRY:%.*]] ]
 ; TUNIT-NEXT:    ret i32 [[RETVAL_0]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@test4-f1
 ; CGSCC-SAME: (i32 [[U:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:  entry:
@@ -549,18 +549,18 @@ return:                                           ; preds = %entry, %if.then
 
 
 define dso_local i32 @test4-g1(i32 %u) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@test4-g1
 ; TUNIT-SAME: (i32 [[U:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
-; TUNIT-NEXT:    [[CALL:%.*]] = tail call i32 @test4-f1(i32 [[U]]) #[[ATTR4]]
+; TUNIT-NEXT:    [[CALL:%.*]] = tail call i32 @test4-f1(i32 [[U]]) #[[ATTR3]]
 ; TUNIT-NEXT:    ret i32 [[CALL]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@test4-g1
 ; CGSCC-SAME: (i32 [[U:%.*]]) #[[ATTR3:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
-; CGSCC-NEXT:    [[CALL:%.*]] = tail call i32 @test4-f1(i32 [[U]]) #[[ATTR6]]
+; CGSCC-NEXT:    [[CALL:%.*]] = tail call i32 @test4-f1(i32 [[U]]) #[[ATTR5]]
 ; CGSCC-NEXT:    ret i32 [[CALL]]
 ;
 ; FIXME: %call should have range [0, inf]
@@ -579,7 +579,7 @@ entry:
 ;   }
 ; }
 define dso_local i32 @test4-f2(i32 %u) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@test4-f2
 ; TUNIT-SAME: (i32 [[U:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
@@ -594,7 +594,7 @@ define dso_local i32 @test4-f2(i32 %u) {
 ; TUNIT-NEXT:    [[RETVAL_0:%.*]] = phi i32 [ [[ADD]], [[IF_THEN]] ], [ 1, [[IF_ELSE]] ]
 ; TUNIT-NEXT:    ret i32 [[RETVAL_0]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@test4-f2
 ; CGSCC-SAME: (i32 [[U:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:  entry:
@@ -627,18 +627,18 @@ return:                                           ; preds = %if.else, %if.then
 
 
 define dso_local i32 @test4-g2(i32 %u) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@test4-g2
 ; TUNIT-SAME: (i32 [[U:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
-; TUNIT-NEXT:    [[CALL:%.*]] = tail call i32 @test4-f2(i32 [[U]]) #[[ATTR4]], !range [[RNG3:![0-9]+]]
+; TUNIT-NEXT:    [[CALL:%.*]] = tail call i32 @test4-f2(i32 [[U]]) #[[ATTR3]], !range [[RNG3:![0-9]+]]
 ; TUNIT-NEXT:    ret i32 [[CALL]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@test4-g2
 ; CGSCC-SAME: (i32 [[U:%.*]]) #[[ATTR3]] {
 ; CGSCC-NEXT:  entry:
-; CGSCC-NEXT:    [[CALL:%.*]] = tail call i32 @test4-f2(i32 [[U]]) #[[ATTR6]]
+; CGSCC-NEXT:    [[CALL:%.*]] = tail call i32 @test4-f2(i32 [[U]]) #[[ATTR5]]
 ; CGSCC-NEXT:    ret i32 [[CALL]]
 ;
 entry:
@@ -718,7 +718,7 @@ declare dso_local i32 @foo(i32)
 
 ; FIXME: All but the return is not needed anymore
 define dso_local zeroext i1 @phi(i32 %arg) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@phi
 ; TUNIT-SAME: (i32 [[ARG:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  bb:
@@ -750,7 +750,7 @@ define dso_local zeroext i1 @phi(i32 %arg) {
 ; TUNIT-NEXT:    [[DOT0:%.*]] = phi i1 [ true, [[BB11]] ], [ false, [[BB12]] ]
 ; TUNIT-NEXT:    ret i1 [[DOT0]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@phi
 ; CGSCC-SAME: (i32 [[ARG:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:  bb:
@@ -822,7 +822,7 @@ bb13:                                             ; preds = %bb12, %bb11
 }
 
 define dso_local i1 @select(i32 %a) local_unnamed_addr #0 {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@select
 ; TUNIT-SAME: (i32 [[A:%.*]]) local_unnamed_addr #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
@@ -834,7 +834,7 @@ define dso_local i1 @select(i32 %a) local_unnamed_addr #0 {
 ; TUNIT-NEXT:    [[CMP6:%.*]] = icmp eq i32 [[Y_0]], 5
 ; TUNIT-NEXT:    ret i1 [[CMP6]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@select
 ; CGSCC-SAME: (i32 [[A:%.*]]) local_unnamed_addr #[[ATTR2]] {
 ; CGSCC-NEXT:  entry:
@@ -857,7 +857,7 @@ entry:
 }
 
 define dso_local i32 @select_zext(i32 %a) local_unnamed_addr #0 {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@select_zext
 ; TUNIT-SAME: (i32 [[A:%.*]]) local_unnamed_addr #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
@@ -870,7 +870,7 @@ define dso_local i32 @select_zext(i32 %a) local_unnamed_addr #0 {
 ; TUNIT-NEXT:    [[DOT13:%.*]] = zext i1 [[CMP6]] to i32
 ; TUNIT-NEXT:    ret i32 [[DOT13]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@select_zext
 ; CGSCC-SAME: (i32 [[A:%.*]]) local_unnamed_addr #[[ATTR2]] {
 ; CGSCC-NEXT:  entry:
@@ -895,7 +895,7 @@ entry:
 }
 
 define dso_local i64 @select_int2ptr_bitcast_ptr2int(i32 %a) local_unnamed_addr #0 {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@select_int2ptr_bitcast_ptr2int
 ; TUNIT-SAME: (i32 [[A:%.*]]) local_unnamed_addr #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
@@ -910,7 +910,7 @@ define dso_local i64 @select_int2ptr_bitcast_ptr2int(i32 %a) local_unnamed_addr
 ; TUNIT-NEXT:    [[P2I:%.*]] = ptrtoint i32* [[BC]] to i64
 ; TUNIT-NEXT:    ret i64 [[P2I]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@select_int2ptr_bitcast_ptr2int
 ; CGSCC-SAME: (i32 [[A:%.*]]) local_unnamed_addr #[[ATTR2]] {
 ; CGSCC-NEXT:  entry:
@@ -941,14 +941,14 @@ entry:
 ; }
 
 define i1 @f_fcmp(float %a, float %b) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@f_fcmp
 ; TUNIT-SAME: (float [[A:%.*]], float [[B:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    [[R:%.*]] = fcmp uge float [[A]], [[B]]
 ; TUNIT-NEXT:    [[S:%.*]] = select i1 [[R]], i1 [[R]], i1 false
 ; TUNIT-NEXT:    ret i1 [[S]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@f_fcmp
 ; CGSCC-SAME: (float [[A:%.*]], float [[B:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    [[R:%.*]] = fcmp uge float [[A]], [[B]]
@@ -960,14 +960,14 @@ define i1 @f_fcmp(float %a, float %b) {
   ret i1 %s
 }
 define i1 @d_fcmp(double %a, double %b) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@d_fcmp
 ; TUNIT-SAME: (double [[A:%.*]], double [[B:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    [[R:%.*]] = fcmp oeq double [[A]], [[B]]
 ; TUNIT-NEXT:    [[S:%.*]] = select i1 [[R]], i1 [[R]], i1 false
 ; TUNIT-NEXT:    ret i1 [[S]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@d_fcmp
 ; CGSCC-SAME: (double [[A:%.*]], double [[B:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    [[R:%.*]] = fcmp oeq double [[A]], [[B]]
@@ -979,14 +979,14 @@ define i1 @d_fcmp(double %a, double %b) {
   ret i1 %s
 }
 define i1 @dp_icmp(double* %a, double* %b) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@dp_icmp
 ; TUNIT-SAME: (double* nofree readnone [[A:%.*]], double* nofree readnone [[B:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    [[R:%.*]] = icmp sge double* [[A]], [[B]]
 ; TUNIT-NEXT:    [[S:%.*]] = select i1 [[R]], i1 [[R]], i1 false
 ; TUNIT-NEXT:    ret i1 [[S]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@dp_icmp
 ; CGSCC-SAME: (double* nofree readnone [[A:%.*]], double* nofree readnone [[B:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    [[R:%.*]] = icmp sge double* [[A]], [[B]]
@@ -998,14 +998,14 @@ define i1 @dp_icmp(double* %a, double* %b) {
   ret i1 %s
 }
 define i1 @ip_icmp(i8* %a, i8* %b) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@ip_icmp
 ; TUNIT-SAME: (i8* nofree readnone [[A:%.*]], i8* nofree readnone [[B:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    [[R:%.*]] = icmp ult i8* [[A]], [[B]]
 ; TUNIT-NEXT:    [[S:%.*]] = select i1 [[R]], i1 [[R]], i1 false
 ; TUNIT-NEXT:    ret i1 [[S]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@ip_icmp
 ; CGSCC-SAME: (i8* nofree readnone [[A:%.*]], i8* nofree readnone [[B:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    [[R:%.*]] = icmp ult i8* [[A]], [[B]]
@@ -1017,25 +1017,25 @@ define i1 @ip_icmp(i8* %a, i8* %b) {
   ret i1 %s
 }
 define i1 @fcmp_caller(float %fa, float %fb, double %da, double %db, double* %dpa, double* %dpb, i8* %ipa, i8* %ipb) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@fcmp_caller
 ; TUNIT-SAME: (float [[FA:%.*]], float [[FB:%.*]], double [[DA:%.*]], double [[DB:%.*]], double* nofree readnone [[DPA:%.*]], double* nofree readnone [[DPB:%.*]], i8* nofree readnone [[IPA:%.*]], i8* nofree readnone [[IPB:%.*]]) #[[ATTR1]] {
-; TUNIT-NEXT:    [[R1:%.*]] = call i1 @f_fcmp(float [[FA]], float [[FB]]) #[[ATTR4]]
-; TUNIT-NEXT:    [[R2:%.*]] = call i1 @d_fcmp(double [[DA]], double [[DB]]) #[[ATTR4]]
-; TUNIT-NEXT:    [[R3:%.*]] = call i1 @dp_icmp(double* noalias nofree readnone [[DPA]], double* noalias nofree readnone [[DPB]]) #[[ATTR4]]
-; TUNIT-NEXT:    [[R4:%.*]] = call i1 @ip_icmp(i8* noalias nofree readnone [[IPA]], i8* noalias nofree readnone [[IPB]]) #[[ATTR4]]
+; TUNIT-NEXT:    [[R1:%.*]] = call i1 @f_fcmp(float [[FA]], float [[FB]]) #[[ATTR3]]
+; TUNIT-NEXT:    [[R2:%.*]] = call i1 @d_fcmp(double [[DA]], double [[DB]]) #[[ATTR3]]
+; TUNIT-NEXT:    [[R3:%.*]] = call i1 @dp_icmp(double* noalias nofree readnone [[DPA]], double* noalias nofree readnone [[DPB]]) #[[ATTR3]]
+; TUNIT-NEXT:    [[R4:%.*]] = call i1 @ip_icmp(i8* noalias nofree readnone [[IPA]], i8* noalias nofree readnone [[IPB]]) #[[ATTR3]]
 ; TUNIT-NEXT:    [[O1:%.*]] = or i1 [[R1]], [[R2]]
 ; TUNIT-NEXT:    [[O2:%.*]] = or i1 [[R3]], [[R4]]
 ; TUNIT-NEXT:    [[O3:%.*]] = or i1 [[O1]], [[O2]]
 ; TUNIT-NEXT:    ret i1 [[O3]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@fcmp_caller
 ; CGSCC-SAME: (float [[FA:%.*]], float [[FB:%.*]], double [[DA:%.*]], double [[DB:%.*]], double* nofree readnone [[DPA:%.*]], double* nofree readnone [[DPB:%.*]], i8* nofree readnone [[IPA:%.*]], i8* nofree readnone [[IPB:%.*]]) #[[ATTR3]] {
-; CGSCC-NEXT:    [[R1:%.*]] = call i1 @f_fcmp(float [[FA]], float [[FB]]) #[[ATTR6]]
-; CGSCC-NEXT:    [[R2:%.*]] = call i1 @d_fcmp(double [[DA]], double [[DB]]) #[[ATTR6]]
-; CGSCC-NEXT:    [[R3:%.*]] = call i1 @dp_icmp(double* noalias nofree readnone [[DPA]], double* noalias nofree readnone [[DPB]]) #[[ATTR6]]
-; CGSCC-NEXT:    [[R4:%.*]] = call i1 @ip_icmp(i8* noalias nofree readnone [[IPA]], i8* noalias nofree readnone [[IPB]]) #[[ATTR6]]
+; CGSCC-NEXT:    [[R1:%.*]] = call i1 @f_fcmp(float [[FA]], float [[FB]]) #[[ATTR5]]
+; CGSCC-NEXT:    [[R2:%.*]] = call i1 @d_fcmp(double [[DA]], double [[DB]]) #[[ATTR5]]
+; CGSCC-NEXT:    [[R3:%.*]] = call i1 @dp_icmp(double* noalias nofree readnone [[DPA]], double* noalias nofree readnone [[DPB]]) #[[ATTR5]]
+; CGSCC-NEXT:    [[R4:%.*]] = call i1 @ip_icmp(i8* noalias nofree readnone [[IPA]], i8* noalias nofree readnone [[IPB]]) #[[ATTR5]]
 ; CGSCC-NEXT:    [[O1:%.*]] = or i1 [[R1]], [[R2]]
 ; CGSCC-NEXT:    [[O2:%.*]] = or i1 [[R3]], [[R4]]
 ; CGSCC-NEXT:    [[O3:%.*]] = or i1 [[O1]], [[O2]]
@@ -1052,12 +1052,12 @@ define i1 @fcmp_caller(float %fa, float %fb, double %da, double %db, double* %dp
 }
 
 define i8 @ret_two() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@ret_two
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i8 2
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@ret_two
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    ret i8 2
@@ -1065,12 +1065,12 @@ define i8 @ret_two() {
   ret i8 2
 }
 define i8 @ret_undef() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@ret_undef
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i8 undef
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@ret_undef
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    ret i8 undef
@@ -1080,15 +1080,15 @@ define i8 @ret_undef() {
 
 ; Verify we collapse undef to a value and return something non-undef here.
 define i8 @undef_collapse_1() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@undef_collapse_1
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i8 0
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@undef_collapse_1
 ; CGSCC-SAME: () #[[ATTR3]] {
-; CGSCC-NEXT:    [[C:%.*]] = call i8 @ret_undef() #[[ATTR6]]
+; CGSCC-NEXT:    [[C:%.*]] = call i8 @ret_undef() #[[ATTR5]]
 ; CGSCC-NEXT:    [[S:%.*]] = shl i8 [[C]], 2
 ; CGSCC-NEXT:    ret i8 [[S]]
 ;
@@ -1099,15 +1099,15 @@ define i8 @undef_collapse_1() {
 
 ; Verify we collapse undef to a value and return something non-undef here.
 define i8 @undef_collapse_2() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@undef_collapse_2
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i8 0
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@undef_collapse_2
 ; CGSCC-SAME: () #[[ATTR3]] {
-; CGSCC-NEXT:    [[C:%.*]] = call i8 @ret_two() #[[ATTR6]]
+; CGSCC-NEXT:    [[C:%.*]] = call i8 @ret_two() #[[ATTR5]]
 ; CGSCC-NEXT:    [[S:%.*]] = shl i8 undef, [[C]]
 ; CGSCC-NEXT:    ret i8 [[S]]
 ;
@@ -1118,16 +1118,16 @@ define i8 @undef_collapse_2() {
 
 define i8 @undef_collapse_caller() {
 ;
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@undef_collapse_caller
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i8 0
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@undef_collapse_caller
 ; CGSCC-SAME: () #[[ATTR3]] {
-; CGSCC-NEXT:    [[C1:%.*]] = call i8 @undef_collapse_1() #[[ATTR6]]
-; CGSCC-NEXT:    [[C2:%.*]] = call i8 @undef_collapse_2() #[[ATTR6]]
+; CGSCC-NEXT:    [[C1:%.*]] = call i8 @undef_collapse_1() #[[ATTR5]]
+; CGSCC-NEXT:    [[C2:%.*]] = call i8 @undef_collapse_2() #[[ATTR5]]
 ; CGSCC-NEXT:    [[A:%.*]] = add i8 [[C1]], [[C2]]
 ; CGSCC-NEXT:    ret i8 [[A]]
 ;
@@ -1138,13 +1138,13 @@ define i8 @undef_collapse_caller() {
 }
 
 define i32 @ret1or2(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@ret1or2
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    [[S:%.*]] = select i1 [[C]], i32 1, i32 2
 ; TUNIT-NEXT:    ret i32 [[S]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@ret1or2
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    [[S:%.*]] = select i1 [[C]], i32 1, i32 2
@@ -1155,11 +1155,11 @@ define i32 @ret1or2(i1 %c) {
 }
 define i1 @callee_range_1(i1 %c1, i1 %c2, i1 %c3) {
 ;
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@callee_range_1
 ; TUNIT-SAME: (i1 [[C1:%.*]], i1 [[C2:%.*]], i1 [[C3:%.*]]) #[[ATTR1]] {
-; TUNIT-NEXT:    [[R1:%.*]] = call i32 @ret1or2(i1 [[C1]]) #[[ATTR4]]
-; TUNIT-NEXT:    [[R2:%.*]] = call i32 @ret1or2(i1 [[C2]]) #[[ATTR4]]
+; TUNIT-NEXT:    [[R1:%.*]] = call i32 @ret1or2(i1 [[C1]]) #[[ATTR3]]
+; TUNIT-NEXT:    [[R2:%.*]] = call i32 @ret1or2(i1 [[C2]]) #[[ATTR3]]
 ; TUNIT-NEXT:    [[INDIRECTION:%.*]] = select i1 [[C3]], i32 [[R1]], i32 [[R2]]
 ; TUNIT-NEXT:    [[A:%.*]] = add i32 [[R1]], [[INDIRECTION]]
 ; TUNIT-NEXT:    [[I1:%.*]] = icmp sle i32 [[A]], 4
@@ -1167,11 +1167,11 @@ define i1 @callee_range_1(i1 %c1, i1 %c2, i1 %c3) {
 ; TUNIT-NEXT:    [[F:%.*]] = and i1 [[I1]], [[I2]]
 ; TUNIT-NEXT:    ret i1 [[F]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@callee_range_1
 ; CGSCC-SAME: (i1 [[C1:%.*]], i1 [[C2:%.*]], i1 [[C3:%.*]]) #[[ATTR3]] {
-; CGSCC-NEXT:    [[R1:%.*]] = call i32 @ret1or2(i1 [[C1]]) #[[ATTR6]]
-; CGSCC-NEXT:    [[R2:%.*]] = call i32 @ret1or2(i1 [[C2]]) #[[ATTR6]]
+; CGSCC-NEXT:    [[R1:%.*]] = call i32 @ret1or2(i1 [[C1]]) #[[ATTR5]]
+; CGSCC-NEXT:    [[R2:%.*]] = call i32 @ret1or2(i1 [[C2]]) #[[ATTR5]]
 ; CGSCC-NEXT:    [[INDIRECTION:%.*]] = select i1 [[C3]], i32 [[R1]], i32 [[R2]]
 ; CGSCC-NEXT:    [[A:%.*]] = add i32 [[R1]], [[INDIRECTION]]
 ; CGSCC-NEXT:    [[I1:%.*]] = icmp sle i32 [[A]], 4
@@ -1191,22 +1191,22 @@ define i1 @callee_range_1(i1 %c1, i1 %c2, i1 %c3) {
 
 define i1 @callee_range_2(i1 %c1, i1 %c2) {
 ;
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@callee_range_2
 ; TUNIT-SAME: (i1 [[C1:%.*]], i1 [[C2:%.*]]) #[[ATTR1]] {
-; TUNIT-NEXT:    [[R1:%.*]] = call i32 @ret1or2(i1 [[C1]]) #[[ATTR4]]
-; TUNIT-NEXT:    [[R2:%.*]] = call i32 @ret1or2(i1 [[C2]]) #[[ATTR4]]
+; TUNIT-NEXT:    [[R1:%.*]] = call i32 @ret1or2(i1 [[C1]]) #[[ATTR3]]
+; TUNIT-NEXT:    [[R2:%.*]] = call i32 @ret1or2(i1 [[C2]]) #[[ATTR3]]
 ; TUNIT-NEXT:    [[A:%.*]] = add i32 [[R1]], [[R2]]
 ; TUNIT-NEXT:    [[I1:%.*]] = icmp sle i32 [[A]], 3
 ; TUNIT-NEXT:    [[I2:%.*]] = icmp sge i32 [[A]], 2
 ; TUNIT-NEXT:    [[F:%.*]] = and i1 [[I1]], [[I2]]
 ; TUNIT-NEXT:    ret i1 [[F]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@callee_range_2
 ; CGSCC-SAME: (i1 [[C1:%.*]], i1 [[C2:%.*]]) #[[ATTR3]] {
-; CGSCC-NEXT:    [[R1:%.*]] = call i32 @ret1or2(i1 [[C1]]) #[[ATTR6]]
-; CGSCC-NEXT:    [[R2:%.*]] = call i32 @ret1or2(i1 [[C2]]) #[[ATTR6]]
+; CGSCC-NEXT:    [[R1:%.*]] = call i32 @ret1or2(i1 [[C1]]) #[[ATTR5]]
+; CGSCC-NEXT:    [[R2:%.*]] = call i32 @ret1or2(i1 [[C2]]) #[[ATTR5]]
 ; CGSCC-NEXT:    [[A:%.*]] = add i32 [[R1]], [[R2]]
 ; CGSCC-NEXT:    [[I1:%.*]] = icmp sle i32 [[A]], 3
 ; CGSCC-NEXT:    [[I2:%.*]] = icmp sge i32 [[A]], 2
@@ -1224,12 +1224,12 @@ define i1 @callee_range_2(i1 %c1, i1 %c2) {
 
 
 define i32 @ret100() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@ret100
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i32 100
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@ret100
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    ret i32 100
@@ -1239,7 +1239,7 @@ define i32 @ret100() {
 
 define i1 @ctx_adjustment(i32 %V) {
 ;
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@ctx_adjustment
 ; TUNIT-SAME: (i32 [[V:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    [[C1:%.*]] = icmp sge i32 [[V]], 100
@@ -1253,7 +1253,7 @@ define i1 @ctx_adjustment(i32 %V) {
 ; TUNIT-NEXT:    [[C2:%.*]] = icmp sge i32 [[PHI]], 100
 ; TUNIT-NEXT:    ret i1 [[C2]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@ctx_adjustment
 ; CGSCC-SAME: (i32 [[V:%.*]]) #[[ATTR3]] {
 ; CGSCC-NEXT:    [[C1:%.*]] = icmp sge i32 [[V]], 100
@@ -1261,7 +1261,7 @@ define i1 @ctx_adjustment(i32 %V) {
 ; CGSCC:       if.true:
 ; CGSCC-NEXT:    br label [[END:%.*]]
 ; CGSCC:       if.false:
-; CGSCC-NEXT:    [[CALL:%.*]] = call i32 @ret100() #[[ATTR6]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call i32 @ret100() #[[ATTR5]]
 ; CGSCC-NEXT:    br label [[END]]
 ; CGSCC:       end:
 ; CGSCC-NEXT:    [[PHI:%.*]] = phi i32 [ [[V]], [[IF_TRUE]] ], [ [[CALL]], [[IF_FALSE]] ]
@@ -1283,13 +1283,13 @@ end:
 
 
 define i32 @func(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@func
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    [[RET:%.*]] = select i1 [[C]], i32 0, i32 1
 ; TUNIT-NEXT:    ret i32 [[RET]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@func
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    [[RET:%.*]] = select i1 [[C]], i32 0, i32 1
@@ -1300,28 +1300,28 @@ define i32 @func(i1 %c) {
 }
 
 define i32 @simplify_callsite_argument(i1 %d) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@simplify_callsite_argument
 ; TUNIT-SAME: (i1 [[D:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    [[C:%.*]] = select i1 [[D]], i1 true, i1 false
 ; TUNIT-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; TUNIT:       t:
-; TUNIT-NEXT:    [[RET1:%.*]] = call i32 @func(i1 noundef [[C]]) #[[ATTR4]]
+; TUNIT-NEXT:    [[RET1:%.*]] = call i32 @func(i1 noundef [[C]]) #[[ATTR3]]
 ; TUNIT-NEXT:    ret i32 [[RET1]]
 ; TUNIT:       f:
-; TUNIT-NEXT:    [[RET2:%.*]] = call i32 @func(i1 noundef false) #[[ATTR4]]
+; TUNIT-NEXT:    [[RET2:%.*]] = call i32 @func(i1 noundef false) #[[ATTR3]]
 ; TUNIT-NEXT:    ret i32 [[RET2]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@simplify_callsite_argument
 ; CGSCC-SAME: (i1 [[D:%.*]]) #[[ATTR3]] {
 ; CGSCC-NEXT:    [[C:%.*]] = select i1 [[D]], i1 true, i1 false
 ; CGSCC-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; CGSCC:       t:
-; CGSCC-NEXT:    [[RET1:%.*]] = call noundef i32 @func(i1 noundef [[C]]) #[[ATTR6]]
+; CGSCC-NEXT:    [[RET1:%.*]] = call noundef i32 @func(i1 noundef [[C]]) #[[ATTR5]]
 ; CGSCC-NEXT:    ret i32 [[RET1]]
 ; CGSCC:       f:
-; CGSCC-NEXT:    [[RET2:%.*]] = call noundef i32 @func(i1 noundef false) #[[ATTR6]]
+; CGSCC-NEXT:    [[RET2:%.*]] = call noundef i32 @func(i1 noundef false) #[[ATTR5]]
 ; CGSCC-NEXT:    ret i32 [[RET2]]
 ;
   %c = select i1 %d, i1 true, i1 false
@@ -1336,7 +1336,7 @@ f:
 
 define internal i32 @less_than_65536(i32 %arg) {
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@less_than_65536
 ; CGSCC-SAME: (i32 [[ARG:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    [[SHRINKED:%.*]] = udiv i32 [[ARG]], 65536
@@ -1347,7 +1347,7 @@ define internal i32 @less_than_65536(i32 %arg) {
 }
 
 define internal i1 @is_less_than_65536(i32 %arg) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@is_less_than_65536
 ; CGSCC-SAME: (i32 [[ARG:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    [[CMP:%.*]] = icmp ult i32 [[ARG]], 65536
@@ -1358,18 +1358,18 @@ define internal i1 @is_less_than_65536(i32 %arg) {
 }
 
 define i1 @check_divided_range(i32 %arg) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@check_divided_range
 ; TUNIT-SAME: (i32 [[ARG:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i1 true
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@check_divided_range
 ; CGSCC-SAME: (i32 [[ARG:%.*]]) #[[ATTR3]] {
-; CGSCC-NEXT:    [[CSRET1:%.*]] = call i32 @less_than_65536(i32 noundef 0) #[[ATTR6]]
-; CGSCC-NEXT:    [[CSRET2:%.*]] = call i32 @less_than_65536(i32 [[ARG]]) #[[ATTR6]]
-; CGSCC-NEXT:    [[TRUE1:%.*]] = call i1 @is_less_than_65536(i32 [[CSRET1]]) #[[ATTR6]]
-; CGSCC-NEXT:    [[TRUE2:%.*]] = call i1 @is_less_than_65536(i32 [[CSRET2]]) #[[ATTR6]]
+; CGSCC-NEXT:    [[CSRET1:%.*]] = call i32 @less_than_65536(i32 noundef 0) #[[ATTR5]]
+; CGSCC-NEXT:    [[CSRET2:%.*]] = call i32 @less_than_65536(i32 [[ARG]]) #[[ATTR5]]
+; CGSCC-NEXT:    [[TRUE1:%.*]] = call i1 @is_less_than_65536(i32 [[CSRET1]]) #[[ATTR5]]
+; CGSCC-NEXT:    [[TRUE2:%.*]] = call i1 @is_less_than_65536(i32 [[CSRET2]]) #[[ATTR5]]
 ; CGSCC-NEXT:    [[RET:%.*]] = and i1 [[TRUE1]], [[TRUE2]]
 ; CGSCC-NEXT:    ret i1 [[RET]]
 ;
@@ -1383,7 +1383,7 @@ define i1 @check_divided_range(i32 %arg) {
 
 define internal i32 @cast_and_return(i1 %c) {
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@cast_and_return
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    [[RET:%.*]] = zext i1 [[C]] to i32
@@ -1394,7 +1394,7 @@ define internal i32 @cast_and_return(i1 %c) {
 }
 
 define internal i1 @is_less_than_3(i32 %c) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@is_less_than_3
 ; CGSCC-SAME: (i32 [[C:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    [[CMP:%.*]] = icmp slt i32 [[C]], 3
@@ -1405,18 +1405,18 @@ define internal i1 @is_less_than_3(i32 %c) {
 }
 
 define i1 @check_casted_range(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@check_casted_range
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i1 true
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@check_casted_range
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR3]] {
-; CGSCC-NEXT:    [[CSRET1:%.*]] = call i32 @cast_and_return(i1 noundef true) #[[ATTR6]]
-; CGSCC-NEXT:    [[CSRET2:%.*]] = call i32 @cast_and_return(i1 [[C]]) #[[ATTR6]]
+; CGSCC-NEXT:    [[CSRET1:%.*]] = call i32 @cast_and_return(i1 noundef true) #[[ATTR5]]
+; CGSCC-NEXT:    [[CSRET2:%.*]] = call i32 @cast_and_return(i1 [[C]]) #[[ATTR5]]
 ; CGSCC-NEXT:    [[ADD:%.*]] = add i32 [[CSRET1]], [[CSRET2]]
-; CGSCC-NEXT:    [[RET:%.*]] = call i1 @is_less_than_3(i32 [[ADD]]) #[[ATTR6]]
+; CGSCC-NEXT:    [[RET:%.*]] = call i1 @is_less_than_3(i32 [[ADD]]) #[[ATTR5]]
 ; CGSCC-NEXT:    ret i1 [[RET]]
 ;
   %csret1 = call i32 @cast_and_return(i1 true)
@@ -1427,7 +1427,7 @@ define i1 @check_casted_range(i1 %c) {
 }
 
 define internal i32 @less_than_100_1(i32 %c) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@less_than_100_1
 ; CGSCC-SAME: (i32 [[C:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    switch i32 [[C]], label [[OTHERWISE:%.*]] [
@@ -1482,7 +1482,7 @@ otherwise:
 }
 
 define internal i1 @is_less_than_100_1(i32 %c) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@is_less_than_100_1
 ; CGSCC-SAME: (i32 noundef [[C:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    [[CMP:%.*]] = icmp slt i32 [[C]], 100
@@ -1493,16 +1493,16 @@ define internal i1 @is_less_than_100_1(i32 %c) {
 }
 
 define i1 @propagate_range1(i32 %c){
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@propagate_range1
 ; TUNIT-SAME: (i32 [[C:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i1 true
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@propagate_range1
 ; CGSCC-SAME: (i32 [[C:%.*]]) #[[ATTR3]] {
-; CGSCC-NEXT:    [[CSRET:%.*]] = call i32 @less_than_100_1(i32 [[C]]) #[[ATTR6]]
-; CGSCC-NEXT:    [[TRUE:%.*]] = call i1 @is_less_than_100_1(i32 noundef [[CSRET]]) #[[ATTR6]]
+; CGSCC-NEXT:    [[CSRET:%.*]] = call i32 @less_than_100_1(i32 [[C]]) #[[ATTR5]]
+; CGSCC-NEXT:    [[TRUE:%.*]] = call i1 @is_less_than_100_1(i32 noundef [[CSRET]]) #[[ATTR5]]
 ; CGSCC-NEXT:    ret i1 [[TRUE]]
 ;
   %csret = call i32 @less_than_100_1(i32 %c)
@@ -1512,7 +1512,7 @@ define i1 @propagate_range1(i32 %c){
 
 define internal i32 @less_than_100_2(i32 %c) {
 ;
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@less_than_100_2
 ; TUNIT-SAME: (i32 [[C:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    switch i32 [[C]], label [[OTHERWISE:%.*]] [
@@ -1541,7 +1541,7 @@ define internal i32 @less_than_100_2(i32 %c) {
 ; TUNIT:       otherwise:
 ; TUNIT-NEXT:    ret i32 99
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@less_than_100_2
 ; CGSCC-SAME: (i32 [[C:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    switch i32 [[C]], label [[OTHERWISE:%.*]] [
@@ -1597,13 +1597,13 @@ otherwise:
 
 define internal i1 @is_less_than_100_2(i32 %c) {
 ;
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@is_less_than_100_2
 ; TUNIT-SAME: (i32 noundef [[C:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    [[CMP:%.*]] = icmp slt i32 [[C]], 100
 ; TUNIT-NEXT:    ret i1 [[CMP]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@is_less_than_100_2
 ; CGSCC-SAME: (i32 noundef [[C:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    [[CMP:%.*]] = icmp slt i32 [[C]], 100
@@ -1614,23 +1614,23 @@ define internal i1 @is_less_than_100_2(i32 %c) {
 }
 
 define i1 @propagate_range2(i32 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@propagate_range2
 ; TUNIT-SAME: (i32 [[C:%.*]]) #[[ATTR1]] {
-; TUNIT-NEXT:    [[CSRET1:%.*]] = call noundef i32 @less_than_100_2(i32 noundef 0) #[[ATTR4]]
-; TUNIT-NEXT:    [[TRUE1:%.*]] = call i1 @is_less_than_100_2(i32 noundef [[CSRET1]]) #[[ATTR4]]
-; TUNIT-NEXT:    [[CSRET2:%.*]] = call noundef i32 @less_than_100_2(i32 [[C]]) #[[ATTR4]]
-; TUNIT-NEXT:    [[TRUE2:%.*]] = call i1 @is_less_than_100_2(i32 noundef [[CSRET2]]) #[[ATTR4]]
+; TUNIT-NEXT:    [[CSRET1:%.*]] = call noundef i32 @less_than_100_2(i32 noundef 0) #[[ATTR3]]
+; TUNIT-NEXT:    [[TRUE1:%.*]] = call i1 @is_less_than_100_2(i32 noundef [[CSRET1]]) #[[ATTR3]]
+; TUNIT-NEXT:    [[CSRET2:%.*]] = call noundef i32 @less_than_100_2(i32 [[C]]) #[[ATTR3]]
+; TUNIT-NEXT:    [[TRUE2:%.*]] = call i1 @is_less_than_100_2(i32 noundef [[CSRET2]]) #[[ATTR3]]
 ; TUNIT-NEXT:    [[TRUE:%.*]] = and i1 [[TRUE1]], [[TRUE2]]
 ; TUNIT-NEXT:    ret i1 [[TRUE]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@propagate_range2
 ; CGSCC-SAME: (i32 [[C:%.*]]) #[[ATTR3]] {
-; CGSCC-NEXT:    [[CSRET1:%.*]] = call i32 @less_than_100_2(i32 noundef 0) #[[ATTR6]]
-; CGSCC-NEXT:    [[TRUE1:%.*]] = call i1 @is_less_than_100_2(i32 noundef [[CSRET1]]) #[[ATTR6]]
-; CGSCC-NEXT:    [[CSRET2:%.*]] = call i32 @less_than_100_2(i32 [[C]]) #[[ATTR6]]
-; CGSCC-NEXT:    [[TRUE2:%.*]] = call i1 @is_less_than_100_2(i32 noundef [[CSRET2]]) #[[ATTR6]]
+; CGSCC-NEXT:    [[CSRET1:%.*]] = call i32 @less_than_100_2(i32 noundef 0) #[[ATTR5]]
+; CGSCC-NEXT:    [[TRUE1:%.*]] = call i1 @is_less_than_100_2(i32 noundef [[CSRET1]]) #[[ATTR5]]
+; CGSCC-NEXT:    [[CSRET2:%.*]] = call i32 @less_than_100_2(i32 [[C]]) #[[ATTR5]]
+; CGSCC-NEXT:    [[TRUE2:%.*]] = call i1 @is_less_than_100_2(i32 noundef [[CSRET2]]) #[[ATTR5]]
 ; CGSCC-NEXT:    [[TRUE:%.*]] = and i1 [[TRUE1]], [[TRUE2]]
 ; CGSCC-NEXT:    ret i1 [[TRUE]]
 ;
@@ -1643,13 +1643,13 @@ define i1 @propagate_range2(i32 %c) {
 }
 
 define internal i1 @non_zero(i8 %v) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@non_zero
 ; TUNIT-SAME: (i8 [[V:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    [[R:%.*]] = icmp ne i8 [[V]], 0
 ; TUNIT-NEXT:    ret i1 [[R]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@non_zero
 ; CGSCC-SAME: (i8 [[V:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    [[R:%.*]] = icmp ne i8 [[V]], 0
@@ -1661,26 +1661,26 @@ define internal i1 @non_zero(i8 %v) {
 
 ; Avoid range metadata for %l below
 define i1 @context(i8* %p) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; TUNIT-LABEL: define {{[^@]+}}@context
 ; TUNIT-SAME: (i8* nocapture nofree noundef nonnull readonly dereferenceable(1) [[P:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    [[L:%.*]] = load i8, i8* [[P]], align 1
 ; TUNIT-NEXT:    [[C:%.*]] = icmp slt i8 0, [[L]]
 ; TUNIT-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; TUNIT:       t:
-; TUNIT-NEXT:    [[R:%.*]] = call i1 @non_zero(i8 [[L]]) #[[ATTR4]]
+; TUNIT-NEXT:    [[R:%.*]] = call i1 @non_zero(i8 [[L]]) #[[ATTR3]]
 ; TUNIT-NEXT:    ret i1 [[R]]
 ; TUNIT:       f:
 ; TUNIT-NEXT:    ret i1 false
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@context
 ; CGSCC-SAME: (i8* nocapture nofree noundef nonnull readonly dereferenceable(1) [[P:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:    [[L:%.*]] = load i8, i8* [[P]], align 1
 ; CGSCC-NEXT:    [[C:%.*]] = icmp slt i8 0, [[L]]
 ; CGSCC-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; CGSCC:       t:
-; CGSCC-NEXT:    [[R:%.*]] = call i1 @non_zero(i8 [[L]]) #[[ATTR6]]
+; CGSCC-NEXT:    [[R:%.*]] = call i1 @non_zero(i8 [[L]]) #[[ATTR5]]
 ; CGSCC-NEXT:    ret i1 [[R]]
 ; CGSCC:       f:
 ; CGSCC-NEXT:    ret i1 false
@@ -1759,7 +1759,7 @@ bb3:                                              ; preds = %bb2, %bb1
 }
 
 define i1 @loop_1(i32 %N) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@loop_1
 ; TUNIT-SAME: (i32 [[N:%.*]]) #[[ATTR2:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
@@ -1774,7 +1774,7 @@ define i1 @loop_1(i32 %N) {
 ; TUNIT-NEXT:    [[R:%.*]] = icmp sle i32 [[I]], 5
 ; TUNIT-NEXT:    ret i1 [[R]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@loop_1
 ; CGSCC-SAME: (i32 [[N:%.*]]) #[[ATTR4:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -1810,19 +1810,17 @@ declare void @barney(i32 signext, i32 signext)
 !0 = !{i32 0, i32 10}
 !1 = !{i32 10, i32 100}
 ;.
-; TUNIT: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind readnone }
-; TUNIT: attributes #[[ATTR3]] = { nofree nosync nounwind readonly willreturn }
-; TUNIT: attributes #[[ATTR4]] = { nofree nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind memory(none) }
+; TUNIT: attributes #[[ATTR3]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR1]] = { argmemonly nofree nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR3]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind readnone }
-; CGSCC: attributes #[[ATTR5]] = { readonly willreturn }
-; CGSCC: attributes #[[ATTR6]] = { readnone willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(argmem: read) }
+; CGSCC: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR3]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind memory(none) }
+; CGSCC: attributes #[[ATTR5]] = { willreturn }
 ;.
 ; TUNIT: [[RNG0]] = !{i32 0, i32 10}
 ; TUNIT: [[RNG1]] = !{i32 10, i32 100}

diff  --git a/llvm/test/Transforms/Attributor/read_write_returned_arguments_scc.ll b/llvm/test/Transforms/Attributor/read_write_returned_arguments_scc.ll
index 4599dd2abb16d..e528007cada60 100644
--- a/llvm/test/Transforms/Attributor/read_write_returned_arguments_scc.ll
+++ b/llvm/test/Transforms/Attributor/read_write_returned_arguments_scc.ll
@@ -33,7 +33,7 @@
 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 
 define i32* @external_ret2_nrw(i32* %n0, i32* %r0, i32* %w0) {
-; TUNIT: Function Attrs: argmemonly nofree nosync nounwind
+; TUNIT: Function Attrs: nofree nosync nounwind memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@external_ret2_nrw
 ; TUNIT-SAME: (i32* nofree [[N0:%.*]], i32* nofree [[R0:%.*]], i32* nofree returned [[W0:%.*]]) #[[ATTR0:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
@@ -43,7 +43,7 @@ define i32* @external_ret2_nrw(i32* %n0, i32* %r0, i32* %w0) {
 ; TUNIT-NEXT:    [[CALL3:%.*]] = call i32* @internal_ret1_rw(i32* nofree align 4 [[R0]], i32* nofree [[W0]]) #[[ATTR3]]
 ; TUNIT-NEXT:    ret i32* [[W0]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind
+; CGSCC: Function Attrs: nofree nosync nounwind memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@external_ret2_nrw
 ; CGSCC-SAME: (i32* nofree [[N0:%.*]], i32* nofree [[R0:%.*]], i32* nofree returned [[W0:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -62,7 +62,7 @@ entry:
 }
 
 define internal i32* @internal_ret0_nw(i32* %n0, i32* %w0) {
-; TUNIT: Function Attrs: argmemonly nofree nosync nounwind
+; TUNIT: Function Attrs: nofree nosync nounwind memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@internal_ret0_nw
 ; TUNIT-SAME: (i32* nofree [[N0:%.*]], i32* nofree [[W0:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:  entry:
@@ -87,7 +87,7 @@ define internal i32* @internal_ret0_nw(i32* %n0, i32* %w0) {
 ; TUNIT-NEXT:    [[RETVAL_0:%.*]] = phi i32* [ [[CALL5]], [[IF_END]] ], [ [[N0]], [[IF_THEN]] ]
 ; TUNIT-NEXT:    ret i32* [[RETVAL_0]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind
+; CGSCC: Function Attrs: nofree nosync nounwind memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@internal_ret0_nw
 ; CGSCC-SAME: (i32* nofree [[N0:%.*]], i32* nofree [[W0:%.*]]) #[[ATTR0]] {
 ; CGSCC-NEXT:  entry:
@@ -104,8 +104,8 @@ define internal i32* @internal_ret0_nw(i32* %n0, i32* %w0) {
 ; CGSCC-NEXT:    [[CALL:%.*]] = call i32* @internal_ret1_rrw(i32* nofree noundef nonnull align 4 dereferenceable(4) [[R0]], i32* nofree noundef nonnull align 4 dereferenceable(4) [[R1]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) #[[ATTR2]]
 ; CGSCC-NEXT:    [[CALL1:%.*]] = call i32* @external_ret2_nrw(i32* nofree [[N0]], i32* nofree noundef nonnull align 4 dereferenceable(4) [[R0]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) #[[ATTR2]]
 ; CGSCC-NEXT:    [[CALL2:%.*]] = call i32* @external_ret2_nrw(i32* nofree [[N0]], i32* nofree noundef nonnull align 4 dereferenceable(4) [[R1]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) #[[ATTR2]]
-; CGSCC-NEXT:    [[CALL3:%.*]] = call i32* @external_sink_ret2_nrw(i32* nofree [[N0]], i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[R0]], i32* nofree nonnull writeonly align 4 dereferenceable(4) [[W0]]) #[[ATTR3]]
-; CGSCC-NEXT:    [[CALL4:%.*]] = call i32* @external_sink_ret2_nrw(i32* nofree [[N0]], i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[R1]], i32* nofree nonnull writeonly align 4 dereferenceable(4) [[W0]]) #[[ATTR3]]
+; CGSCC-NEXT:    [[CALL3:%.*]] = call i32* @external_sink_ret2_nrw(i32* nofree [[N0]], i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[R0]], i32* nofree nonnull writeonly align 4 dereferenceable(4) [[W0]]) #[[ATTR4:[0-9]+]]
+; CGSCC-NEXT:    [[CALL4:%.*]] = call i32* @external_sink_ret2_nrw(i32* nofree [[N0]], i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[R1]], i32* nofree nonnull writeonly align 4 dereferenceable(4) [[W0]]) #[[ATTR4]]
 ; CGSCC-NEXT:    [[CALL5:%.*]] = call i32* @internal_ret0_nw(i32* nofree [[N0]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) #[[ATTR2]]
 ; CGSCC-NEXT:    br label [[RETURN]]
 ; CGSCC:       return:
@@ -139,7 +139,7 @@ return:                                           ; preds = %if.end, %if.then
 }
 
 define internal i32* @internal_ret1_rrw(i32* %r0, i32* %r1, i32* %w0) {
-; TUNIT: Function Attrs: argmemonly nofree nosync nounwind
+; TUNIT: Function Attrs: nofree nosync nounwind memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@internal_ret1_rrw
 ; TUNIT-SAME: (i32* nofree noundef nonnull align 4 dereferenceable(4) [[R0:%.*]], i32* nofree align 4 [[R1:%.*]], i32* nofree [[W0:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:  entry:
@@ -167,7 +167,7 @@ define internal i32* @internal_ret1_rrw(i32* %r0, i32* %r1, i32* %w0) {
 ; TUNIT-NEXT:    [[RETVAL_0:%.*]] = phi i32* [ [[CALL8]], [[IF_END]] ], [ [[R1]], [[IF_THEN]] ]
 ; TUNIT-NEXT:    ret i32* undef
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind
+; CGSCC: Function Attrs: nofree nosync nounwind memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@internal_ret1_rrw
 ; CGSCC-SAME: (i32* nofree noundef nonnull align 4 dereferenceable(4) [[R0:%.*]], i32* nofree align 4 [[R1:%.*]], i32* nofree [[W0:%.*]]) #[[ATTR0]] {
 ; CGSCC-NEXT:  entry:
@@ -187,8 +187,8 @@ define internal i32* @internal_ret1_rrw(i32* %r0, i32* %r1, i32* %w0) {
 ; CGSCC-NEXT:    [[CALL3:%.*]] = call i32* @internal_ret0_nw(i32* nofree nonnull align 4 dereferenceable(4) [[W0]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) #[[ATTR2]]
 ; CGSCC-NEXT:    [[CALL4:%.*]] = call i32* @external_ret2_nrw(i32* nofree noundef nonnull align 4 dereferenceable(4) [[R0]], i32* nofree nonnull align 4 dereferenceable(4) [[R1]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) #[[ATTR2]]
 ; CGSCC-NEXT:    [[CALL5:%.*]] = call i32* @external_ret2_nrw(i32* nofree nonnull align 4 dereferenceable(4) [[R1]], i32* nofree noundef nonnull align 4 dereferenceable(4) [[R0]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) #[[ATTR2]]
-; CGSCC-NEXT:    [[CALL6:%.*]] = call i32* @external_sink_ret2_nrw(i32* nofree noundef nonnull align 4 dereferenceable(4) [[R0]], i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) [[R1]], i32* nofree nonnull writeonly align 4 dereferenceable(4) [[W0]]) #[[ATTR3]]
-; CGSCC-NEXT:    [[CALL7:%.*]] = call i32* @external_sink_ret2_nrw(i32* nofree nonnull align 4 dereferenceable(4) [[R1]], i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[R0]], i32* nofree nonnull writeonly align 4 dereferenceable(4) [[W0]]) #[[ATTR3]]
+; CGSCC-NEXT:    [[CALL6:%.*]] = call i32* @external_sink_ret2_nrw(i32* nofree noundef nonnull align 4 dereferenceable(4) [[R0]], i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) [[R1]], i32* nofree nonnull writeonly align 4 dereferenceable(4) [[W0]]) #[[ATTR4]]
+; CGSCC-NEXT:    [[CALL7:%.*]] = call i32* @external_sink_ret2_nrw(i32* nofree nonnull align 4 dereferenceable(4) [[R1]], i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[R0]], i32* nofree nonnull writeonly align 4 dereferenceable(4) [[W0]]) #[[ATTR4]]
 ; CGSCC-NEXT:    [[CALL8:%.*]] = call i32* @internal_ret0_nw(i32* nofree nonnull align 4 dereferenceable(4) [[R1]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) #[[ATTR2]]
 ; CGSCC-NEXT:    br label [[RETURN]]
 ; CGSCC:       return:
@@ -225,7 +225,7 @@ return:                                           ; preds = %if.end, %if.then
 }
 
 define i32* @external_sink_ret2_nrw(i32* %n0, i32* %r0, i32* %w0) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@external_sink_ret2_nrw
 ; CHECK-SAME: (i32* nofree [[N0:%.*]], i32* nocapture nofree readonly [[R0:%.*]], i32* nofree returned writeonly "no-capture-maybe-returned" [[W0:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -257,7 +257,7 @@ return:                                           ; preds = %if.end, %if.then
 }
 
 define internal i32* @internal_ret1_rw(i32* %r0, i32* %w0) {
-; TUNIT: Function Attrs: argmemonly nofree nosync nounwind
+; TUNIT: Function Attrs: nofree nosync nounwind memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@internal_ret1_rw
 ; TUNIT-SAME: (i32* nofree noundef nonnull align 4 dereferenceable(4) [[R0:%.*]], i32* nofree [[W0:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:  entry:
@@ -279,7 +279,7 @@ define internal i32* @internal_ret1_rw(i32* %r0, i32* %w0) {
 ; TUNIT-NEXT:    [[RETVAL_0:%.*]] = phi i32* [ [[CALL4]], [[IF_END]] ], [ [[W0]], [[IF_THEN]] ]
 ; TUNIT-NEXT:    ret i32* [[RETVAL_0]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind
+; CGSCC: Function Attrs: nofree nosync nounwind memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@internal_ret1_rw
 ; CGSCC-SAME: (i32* nofree noundef nonnull align 4 dereferenceable(4) [[R0:%.*]], i32* nofree [[W0:%.*]]) #[[ATTR0]] {
 ; CGSCC-NEXT:  entry:
@@ -294,7 +294,7 @@ define internal i32* @internal_ret1_rw(i32* %r0, i32* %w0) {
 ; CGSCC-NEXT:    store i32 [[TMP1]], i32* [[W0]], align 4
 ; CGSCC-NEXT:    [[CALL1:%.*]] = call i32* @internal_ret0_nw(i32* nofree noundef nonnull align 4 dereferenceable(4) [[R0]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) #[[ATTR2]]
 ; CGSCC-NEXT:    [[CALL2:%.*]] = call i32* @internal_ret0_nw(i32* nofree nonnull align 4 dereferenceable(4) [[W0]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) #[[ATTR2]]
-; CGSCC-NEXT:    [[CALL3:%.*]] = call i32* @external_sink_ret2_nrw(i32* nofree noundef nonnull align 4 dereferenceable(4) [[R0]], i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[R0]], i32* nofree nonnull writeonly align 4 dereferenceable(4) [[W0]]) #[[ATTR3]]
+; CGSCC-NEXT:    [[CALL3:%.*]] = call i32* @external_sink_ret2_nrw(i32* nofree noundef nonnull align 4 dereferenceable(4) [[R0]], i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[R0]], i32* nofree nonnull writeonly align 4 dereferenceable(4) [[W0]]) #[[ATTR4]]
 ; CGSCC-NEXT:    [[CALL4:%.*]] = call i32* @external_ret2_nrw(i32* nofree noundef nonnull align 4 dereferenceable(4) [[R0]], i32* nofree noundef nonnull align 4 dereferenceable(4) [[R0]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) #[[ATTR2]]
 ; CGSCC-NEXT:    br label [[RETURN]]
 ; CGSCC:       return:
@@ -325,7 +325,7 @@ return:                                           ; preds = %if.end, %if.then
 }
 
 define i32* @external_source_ret2_nrw(i32* %n0, i32* %r0, i32* %w0) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@external_source_ret2_nrw
 ; TUNIT-SAME: (i32* nofree [[N0:%.*]], i32* nofree [[R0:%.*]], i32* nofree returned [[W0:%.*]]) #[[ATTR2:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
@@ -333,11 +333,11 @@ define i32* @external_source_ret2_nrw(i32* %n0, i32* %r0, i32* %w0) {
 ; TUNIT-NEXT:    [[CALL1:%.*]] = call i32* @external_ret2_nrw(i32* nofree [[N0]], i32* nofree [[R0]], i32* nofree [[W0]]) #[[ATTR3]]
 ; TUNIT-NEXT:    ret i32* [[W0]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind
+; CGSCC: Function Attrs: nofree nosync nounwind memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@external_source_ret2_nrw
 ; CGSCC-SAME: (i32* nofree [[N0:%.*]], i32* nofree [[R0:%.*]], i32* nofree [[W0:%.*]]) #[[ATTR0]] {
 ; CGSCC-NEXT:  entry:
-; CGSCC-NEXT:    [[CALL:%.*]] = call i32* @external_sink_ret2_nrw(i32* nofree [[N0]], i32* nocapture nofree readonly [[R0]], i32* nofree writeonly [[W0]]) #[[ATTR4:[0-9]+]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call i32* @external_sink_ret2_nrw(i32* nofree [[N0]], i32* nocapture nofree readonly [[R0]], i32* nofree writeonly [[W0]]) #[[ATTR5:[0-9]+]]
 ; CGSCC-NEXT:    [[CALL1:%.*]] = call i32* @external_ret2_nrw(i32* nofree [[N0]], i32* nofree [[R0]], i32* nofree [[W0]]) #[[ATTR3]]
 ; CGSCC-NEXT:    ret i32* [[CALL1]]
 ;
@@ -350,15 +350,16 @@ entry:
 ; Verify that we see only expected attribute sets, the above lines only check
 ; for a subset relation.
 ;.
-; TUNIT: attributes #[[ATTR0]] = { argmemonly nofree nosync nounwind }
-; TUNIT: attributes #[[ATTR1]] = { argmemonly nofree norecurse nosync nounwind willreturn }
-; TUNIT: attributes #[[ATTR2]] = { argmemonly nofree norecurse nosync nounwind }
+; TUNIT: attributes #[[ATTR0]] = { nofree nosync nounwind memory(argmem: readwrite) }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) }
+; TUNIT: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind memory(argmem: readwrite) }
 ; TUNIT: attributes #[[ATTR3]] = { nofree nosync nounwind }
 ; TUNIT: attributes #[[ATTR4]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree nosync nounwind }
-; CGSCC: attributes #[[ATTR1]] = { argmemonly nofree norecurse nosync nounwind willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree nosync nounwind memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) }
 ; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind }
 ; CGSCC: attributes #[[ATTR3]] = { nounwind }
-; CGSCC: attributes #[[ATTR4]] = { nounwind willreturn }
+; CGSCC: attributes #[[ATTR4]] = { nounwind memory(readwrite) }
+; CGSCC: attributes #[[ATTR5]] = { nounwind willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/readattrs.ll b/llvm/test/Transforms/Attributor/readattrs.ll
index 2ef52f86827d3..d3936a18a3983 100644
--- a/llvm/test/Transforms/Attributor/readattrs.ll
+++ b/llvm/test/Transforms/Attributor/readattrs.ll
@@ -26,7 +26,7 @@ define void @test1_2(i8* %x1_2, i8* %y1_2, i8* %z1_2) {
 }
 
 define i8* @test2(i8* %p) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CHECK-LABEL: define {{[^@]+}}@test2
 ; CHECK-SAME: (i8* nofree readnone returned "no-capture-maybe-returned" [[P:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    store i32 0, i32* @x, align 4
@@ -37,7 +37,7 @@ define i8* @test2(i8* %p) {
 }
 
 define i1 @test3(i8* %p, i8* %q) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test3
 ; CHECK-SAME: (i8* nofree readnone [[P:%.*]], i8* nofree readnone [[Q:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:    [[A:%.*]] = icmp ult i8* [[P]], [[Q]]
@@ -50,10 +50,10 @@ define i1 @test3(i8* %p, i8* %q) {
 declare void @test4_1(i8* nocapture) readonly
 
 define void @test4_2(i8* %p) {
-; CHECK: Function Attrs: readonly
+; CHECK: Function Attrs: memory(read)
 ; CHECK-LABEL: define {{[^@]+}}@test4_2
 ; CHECK-SAME: (i8* nocapture readonly [[P:%.*]]) #[[ATTR2:[0-9]+]] {
-; CHECK-NEXT:    call void @test4_1(i8* nocapture readonly [[P]]) #[[ATTR2]]
+; CHECK-NEXT:    call void @test4_1(i8* nocapture readonly [[P]])
 ; CHECK-NEXT:    ret void
 ;
   call void @test4_1(i8* %p)
@@ -62,7 +62,7 @@ define void @test4_2(i8* %p) {
 
 ; Missed optz'n: we could make %q readnone, but don't break test6!
 define void @test5(i8** %p, i8* %q) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@test5
 ; CHECK-SAME: (i8** nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[P:%.*]], i8* nofree writeonly [[Q:%.*]]) #[[ATTR3:[0-9]+]] {
 ; CHECK-NEXT:    store i8* [[Q]], i8** [[P]], align 8
@@ -88,7 +88,7 @@ define void @test6_2(i8** %p, i8* %q) {
 
 ; inalloca parameters are always considered written
 define void @test7_1(i32* inalloca(i32) %a) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test7_1
 ; CHECK-SAME: (i32* nocapture nofree nonnull writeonly inalloca(i32) dereferenceable(4) [[A:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:    ret void
@@ -97,7 +97,7 @@ define void @test7_1(i32* inalloca(i32) %a) {
 }
 
 define i32* @test8_1(i32* %p) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test8_1
 ; CHECK-SAME: (i32* nofree readnone returned "no-capture-maybe-returned" [[P:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:  entry:
@@ -108,14 +108,14 @@ entry:
 }
 
 define void @test8_2(i32* %p) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@test8_2
 ; TUNIT-SAME: (i32* nocapture nofree writeonly [[P:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    store i32 10, i32* [[P]], align 4
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@test8_2
 ; CGSCC-SAME: (i32* nofree writeonly [[P:%.*]]) #[[ATTR4:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -135,16 +135,16 @@ declare void @llvm.masked.scatter.v4i32.v4p0i32(<4 x i32>%val, <4 x i32*>, i32,
 ; CHECK-NOT: readnone
 ; CHECK-NOT: readonly
 define void @test9(<4 x i32*> %ptrs, <4 x i32>%val) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@test9
 ; TUNIT-SAME: (<4 x i32*> [[PTRS:%.*]], <4 x i32> [[VAL:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    call void @llvm.masked.scatter.v4i32.v4p0i32(<4 x i32> [[VAL]], <4 x i32*> [[PTRS]], i32 noundef 4, <4 x i1> noundef <i1 true, i1 false, i1 true, i1 false>) #[[ATTR12:[0-9]+]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@test9
 ; CGSCC-SAME: (<4 x i32*> [[PTRS:%.*]], <4 x i32> [[VAL:%.*]]) #[[ATTR0]] {
-; CGSCC-NEXT:    call void @llvm.masked.scatter.v4i32.v4p0i32(<4 x i32> [[VAL]], <4 x i32*> [[PTRS]], i32 noundef 4, <4 x i1> noundef <i1 true, i1 false, i1 true, i1 false>) #[[ATTR14:[0-9]+]]
+; CGSCC-NEXT:    call void @llvm.masked.scatter.v4i32.v4p0i32(<4 x i32> [[VAL]], <4 x i32*> [[PTRS]], i32 noundef 4, <4 x i1> noundef <i1 true, i1 false, i1 true, i1 false>) #[[ATTR13]]
 ; CGSCC-NEXT:    ret void
 ;
   call void @llvm.masked.scatter.v4i32.v4p0i32(<4 x i32>%val, <4 x i32*> %ptrs, i32 4, <4 x i1><i1 true, i1 false, i1 true, i1 false>)
@@ -154,16 +154,16 @@ define void @test9(<4 x i32*> %ptrs, <4 x i32>%val) {
 ; CHECK: declare <4 x i32> @llvm.masked.gather
 declare <4 x i32> @llvm.masked.gather.v4i32.v4p0i32(<4 x i32*>, i32, <4 x i1>, <4 x i32>)
 define <4 x i32> @test10(<4 x i32*> %ptrs) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(read)
 ; TUNIT-LABEL: define {{[^@]+}}@test10
 ; TUNIT-SAME: (<4 x i32*> [[PTRS:%.*]]) #[[ATTR6:[0-9]+]] {
-; TUNIT-NEXT:    [[RES:%.*]] = call <4 x i32> @llvm.masked.gather.v4i32.v4p0i32(<4 x i32*> [[PTRS]], i32 noundef 4, <4 x i1> noundef <i1 true, i1 false, i1 true, i1 false>, <4 x i32> undef) #[[ATTR13:[0-9]+]]
+; TUNIT-NEXT:    [[RES:%.*]] = call <4 x i32> @llvm.masked.gather.v4i32.v4p0i32(<4 x i32*> [[PTRS]], i32 noundef 4, <4 x i1> noundef <i1 true, i1 false, i1 true, i1 false>, <4 x i32> undef) #[[ATTR12]]
 ; TUNIT-NEXT:    ret <4 x i32> [[RES]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(read)
 ; CGSCC-LABEL: define {{[^@]+}}@test10
 ; CGSCC-SAME: (<4 x i32*> [[PTRS:%.*]]) #[[ATTR7:[0-9]+]] {
-; CGSCC-NEXT:    [[RES:%.*]] = call <4 x i32> @llvm.masked.gather.v4i32.v4p0i32(<4 x i32*> [[PTRS]], i32 noundef 4, <4 x i1> noundef <i1 true, i1 false, i1 true, i1 false>, <4 x i32> undef) #[[ATTR15:[0-9]+]]
+; CGSCC-NEXT:    [[RES:%.*]] = call <4 x i32> @llvm.masked.gather.v4i32.v4p0i32(<4 x i32*> [[PTRS]], i32 noundef 4, <4 x i1> noundef <i1 true, i1 false, i1 true, i1 false>, <4 x i32> undef) #[[ATTR13]]
 ; CGSCC-NEXT:    ret <4 x i32> [[RES]]
 ;
   %res = call <4 x i32> @llvm.masked.gather.v4i32.v4p0i32(<4 x i32*> %ptrs, i32 4, <4 x i1><i1 true, i1 false, i1 true, i1 false>, <4 x i32>undef)
@@ -173,16 +173,16 @@ define <4 x i32> @test10(<4 x i32*> %ptrs) {
 ; CHECK: declare <4 x i32> @test11_1
 declare <4 x i32> @test11_1(<4 x i32*>) argmemonly nounwind readonly
 define <4 x i32> @test11_2(<4 x i32*> %ptrs) {
-; TUNIT: Function Attrs: argmemonly nounwind readonly
+; TUNIT: Function Attrs: nounwind memory(argmem: read)
 ; TUNIT-LABEL: define {{[^@]+}}@test11_2
 ; TUNIT-SAME: (<4 x i32*> [[PTRS:%.*]]) #[[ATTR7:[0-9]+]] {
-; TUNIT-NEXT:    [[RES:%.*]] = call <4 x i32> @test11_1(<4 x i32*> [[PTRS]]) #[[ATTR11:[0-9]+]]
+; TUNIT-NEXT:    [[RES:%.*]] = call <4 x i32> @test11_1(<4 x i32*> [[PTRS]]) #[[ATTR13:[0-9]+]]
 ; TUNIT-NEXT:    ret <4 x i32> [[RES]]
 ;
-; CGSCC: Function Attrs: argmemonly nounwind readonly
+; CGSCC: Function Attrs: nounwind memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@test11_2
 ; CGSCC-SAME: (<4 x i32*> [[PTRS:%.*]]) #[[ATTR8:[0-9]+]] {
-; CGSCC-NEXT:    [[RES:%.*]] = call <4 x i32> @test11_1(<4 x i32*> [[PTRS]]) #[[ATTR12:[0-9]+]]
+; CGSCC-NEXT:    [[RES:%.*]] = call <4 x i32> @test11_1(<4 x i32*> [[PTRS]]) #[[ATTR14:[0-9]+]]
 ; CGSCC-NEXT:    ret <4 x i32> [[RES]]
 ;
   %res = call <4 x i32> @test11_1(<4 x i32*> %ptrs)
@@ -192,16 +192,16 @@ define <4 x i32> @test11_2(<4 x i32*> %ptrs) {
 declare <4 x i32> @test12_1(<4 x i32*>) argmemonly nounwind
 ; CHECK-NOT: readnone
 define <4 x i32> @test12_2(<4 x i32*> %ptrs) {
-; TUNIT: Function Attrs: argmemonly nounwind
+; TUNIT: Function Attrs: nounwind memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@test12_2
 ; TUNIT-SAME: (<4 x i32*> [[PTRS:%.*]]) #[[ATTR8:[0-9]+]] {
-; TUNIT-NEXT:    [[RES:%.*]] = call <4 x i32> @test12_1(<4 x i32*> [[PTRS]]) #[[ATTR14:[0-9]+]]
+; TUNIT-NEXT:    [[RES:%.*]] = call <4 x i32> @test12_1(<4 x i32*> [[PTRS]]) #[[ATTR13]]
 ; TUNIT-NEXT:    ret <4 x i32> [[RES]]
 ;
-; CGSCC: Function Attrs: argmemonly nounwind
+; CGSCC: Function Attrs: nounwind memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@test12_2
 ; CGSCC-SAME: (<4 x i32*> [[PTRS:%.*]]) #[[ATTR9:[0-9]+]] {
-; CGSCC-NEXT:    [[RES:%.*]] = call <4 x i32> @test12_1(<4 x i32*> [[PTRS]]) #[[ATTR16:[0-9]+]]
+; CGSCC-NEXT:    [[RES:%.*]] = call <4 x i32> @test12_1(<4 x i32*> [[PTRS]]) #[[ATTR14]]
 ; CGSCC-NEXT:    ret <4 x i32> [[RES]]
 ;
   %res = call <4 x i32> @test12_1(<4 x i32*> %ptrs)
@@ -209,13 +209,13 @@ define <4 x i32> @test12_2(<4 x i32*> %ptrs) {
 }
 
 define i32 @volatile_load(i32* %p) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nounwind willreturn memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@volatile_load
 ; TUNIT-SAME: (i32* nofree noundef align 4 [[P:%.*]]) #[[ATTR9:[0-9]+]] {
 ; TUNIT-NEXT:    [[LOAD:%.*]] = load volatile i32, i32* [[P]], align 4
 ; TUNIT-NEXT:    ret i32 [[LOAD]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@volatile_load
 ; CGSCC-SAME: (i32* nofree noundef align 4 [[P:%.*]]) #[[ATTR10:[0-9]+]] {
 ; CGSCC-NEXT:    [[LOAD:%.*]] = load volatile i32, i32* [[P]], align 4
@@ -271,7 +271,7 @@ define void @unsound_readonly(i8* %ignored, i8* %escaped_then_written) {
 declare void @escape_i8(i8* %ptr)
 
 define void @byval_not_readonly_1(i8* byval(i8) %written) readonly {
-; CHECK: Function Attrs: readonly
+; CHECK: Function Attrs: memory(read)
 ; CHECK-LABEL: define {{[^@]+}}@byval_not_readonly_1
 ; CHECK-SAME: (i8* noalias nonnull byval(i8) dereferenceable(1) [[WRITTEN:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    call void @escape_i8(i8* nonnull dereferenceable(1) [[WRITTEN]])
@@ -282,7 +282,7 @@ define void @byval_not_readonly_1(i8* byval(i8) %written) readonly {
 }
 
 define void @byval_not_readonly_2(i8* byval(i8) %written) readonly {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@byval_not_readonly_2
 ; CHECK-SAME: (i8* noalias nocapture nofree noundef nonnull writeonly byval(i8) dereferenceable(1) [[WRITTEN:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:    store i8 0, i8* [[WRITTEN]], align 1
@@ -293,13 +293,13 @@ define void @byval_not_readonly_2(i8* byval(i8) %written) readonly {
 }
 
 define void @byval_not_readnone_1(i8* byval(i8) %written) readnone {
-; TUNIT: Function Attrs: readnone
+; TUNIT: Function Attrs: memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@byval_not_readnone_1
 ; TUNIT-SAME: (i8* noalias nonnull byval(i8) dereferenceable(1) [[WRITTEN:%.*]]) #[[ATTR10:[0-9]+]] {
 ; TUNIT-NEXT:    call void @escape_i8(i8* nonnull dereferenceable(1) [[WRITTEN]])
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: readnone
+; CGSCC: Function Attrs: memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@byval_not_readnone_1
 ; CGSCC-SAME: (i8* noalias nonnull byval(i8) dereferenceable(1) [[WRITTEN:%.*]]) #[[ATTR11:[0-9]+]] {
 ; CGSCC-NEXT:    call void @escape_i8(i8* nonnull dereferenceable(1) [[WRITTEN]])
@@ -310,7 +310,7 @@ define void @byval_not_readnone_1(i8* byval(i8) %written) readnone {
 }
 
 define void @byval_not_readnone_2(i8* byval(i8) %written) readnone {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@byval_not_readnone_2
 ; CHECK-SAME: (i8* noalias nocapture nofree noundef nonnull writeonly byval(i8) dereferenceable(1) [[WRITTEN:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:    store i8 0, i8* [[WRITTEN]], align 1
@@ -321,7 +321,7 @@ define void @byval_not_readnone_2(i8* byval(i8) %written) readnone {
 }
 
 define void @byval_no_fnarg(i8* byval(i8) %written) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@byval_no_fnarg
 ; CHECK-SAME: (i8* noalias nocapture nofree noundef nonnull writeonly byval(i8) dereferenceable(1) [[WRITTEN:%.*]]) #[[ATTR3]] {
 ; CHECK-NEXT:    store i8 0, i8* [[WRITTEN]], align 1
@@ -334,16 +334,16 @@ define void @byval_no_fnarg(i8* byval(i8) %written) {
 define void @testbyval(i8* %read_only) {
 ; TUNIT-LABEL: define {{[^@]+}}@testbyval
 ; TUNIT-SAME: (i8* nocapture readonly [[READ_ONLY:%.*]]) {
-; TUNIT-NEXT:    call void @byval_not_readonly_1(i8* nocapture readonly byval(i8) [[READ_ONLY]]) #[[ATTR2]]
+; TUNIT-NEXT:    call void @byval_not_readonly_1(i8* nocapture readonly byval(i8) [[READ_ONLY]])
 ; TUNIT-NEXT:    call void @byval_not_readnone_1(i8* noalias nocapture readnone byval(i8) [[READ_ONLY]])
-; TUNIT-NEXT:    call void @byval_no_fnarg(i8* nocapture nofree readonly byval(i8) [[READ_ONLY]]) #[[ATTR15:[0-9]+]]
+; TUNIT-NEXT:    call void @byval_no_fnarg(i8* nocapture nofree readonly byval(i8) [[READ_ONLY]]) #[[ATTR13]]
 ; TUNIT-NEXT:    ret void
 ;
 ; CGSCC-LABEL: define {{[^@]+}}@testbyval
 ; CGSCC-SAME: (i8* nocapture noundef nonnull readonly dereferenceable(1) [[READ_ONLY:%.*]]) {
-; CGSCC-NEXT:    call void @byval_not_readonly_1(i8* noalias nocapture noundef nonnull readonly byval(i8) dereferenceable(1) [[READ_ONLY]]) #[[ATTR2]]
+; CGSCC-NEXT:    call void @byval_not_readonly_1(i8* noalias nocapture noundef nonnull readonly byval(i8) dereferenceable(1) [[READ_ONLY]])
 ; CGSCC-NEXT:    call void @byval_not_readnone_1(i8* noalias nocapture noundef nonnull readnone byval(i8) dereferenceable(1) [[READ_ONLY]])
-; CGSCC-NEXT:    call void @byval_no_fnarg(i8* noalias nocapture nofree noundef nonnull readnone byval(i8) dereferenceable(1) [[READ_ONLY]]) #[[ATTR17:[0-9]+]]
+; CGSCC-NEXT:    call void @byval_no_fnarg(i8* noalias nocapture nofree noundef nonnull readnone byval(i8) dereferenceable(1) [[READ_ONLY]]) #[[ATTR14]]
 ; CGSCC-NEXT:    ret void
 ;
   call void @byval_not_readonly_1(i8* byval(i8) %read_only)
@@ -360,18 +360,18 @@ declare i8 @maybe_returned_val(i8* %ptr) readonly nounwind
 declare void @val_use(i8 %ptr) readonly nounwind
 
 define void @ptr_uses(i8* %ptr) {
-; TUNIT: Function Attrs: nounwind readonly
+; TUNIT: Function Attrs: nounwind memory(read)
 ; TUNIT-LABEL: define {{[^@]+}}@ptr_uses
-; TUNIT-SAME: (i8* nocapture readonly [[PTR:%.*]]) #[[ATTR11]] {
-; TUNIT-NEXT:    [[CALL_PTR:%.*]] = call i8* @maybe_returned_ptr(i8* readonly [[PTR]]) #[[ATTR11]]
-; TUNIT-NEXT:    [[CALL_VAL:%.*]] = call i8 @maybe_returned_val(i8* readonly [[CALL_PTR]]) #[[ATTR11]]
+; TUNIT-SAME: (i8* nocapture readonly [[PTR:%.*]]) #[[ATTR11:[0-9]+]] {
+; TUNIT-NEXT:    [[CALL_PTR:%.*]] = call i8* @maybe_returned_ptr(i8* readonly [[PTR]]) #[[ATTR13]]
+; TUNIT-NEXT:    [[CALL_VAL:%.*]] = call i8 @maybe_returned_val(i8* readonly [[CALL_PTR]]) #[[ATTR13]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nounwind readonly
+; CGSCC: Function Attrs: nounwind memory(read)
 ; CGSCC-LABEL: define {{[^@]+}}@ptr_uses
-; CGSCC-SAME: (i8* nocapture readonly [[PTR:%.*]]) #[[ATTR12]] {
-; CGSCC-NEXT:    [[CALL_PTR:%.*]] = call i8* @maybe_returned_ptr(i8* readonly [[PTR]]) #[[ATTR12]]
-; CGSCC-NEXT:    [[CALL_VAL:%.*]] = call i8 @maybe_returned_val(i8* readonly [[CALL_PTR]]) #[[ATTR12]]
+; CGSCC-SAME: (i8* nocapture readonly [[PTR:%.*]]) #[[ATTR12:[0-9]+]] {
+; CGSCC-NEXT:    [[CALL_PTR:%.*]] = call i8* @maybe_returned_ptr(i8* readonly [[PTR]]) #[[ATTR14]]
+; CGSCC-NEXT:    [[CALL_VAL:%.*]] = call i8 @maybe_returned_val(i8* readonly [[CALL_PTR]]) #[[ATTR14]]
 ; CGSCC-NEXT:    ret void
 ;
   %call_ptr = call i8* @maybe_returned_ptr(i8* %ptr)
@@ -410,7 +410,7 @@ define void @ptr_use_chain(i8* %ptr) {
 
 @constant_mem = external dso_local constant i32, align 4
 define i32 @read_only_constant_mem() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@read_only_constant_mem
 ; CHECK-SAME: () #[[ATTR1]] {
 ; CHECK-NEXT:    [[L:%.*]] = load i32, i32* @constant_mem, align 4
@@ -420,39 +420,34 @@ define i32 @read_only_constant_mem() {
   ret i32 %l
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR2]] = { readonly }
-; TUNIT: attributes #[[ATTR3]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR4:[0-9]+]] = { nocallback nofree nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR5:[0-9]+]] = { nocallback nofree nosync nounwind readonly willreturn }
-; TUNIT: attributes #[[ATTR6]] = { nofree norecurse nosync nounwind readonly willreturn }
-; TUNIT: attributes #[[ATTR7]] = { argmemonly nounwind readonly }
-; TUNIT: attributes #[[ATTR8]] = { argmemonly nounwind }
-; TUNIT: attributes #[[ATTR9]] = { argmemonly nofree norecurse nounwind willreturn }
-; TUNIT: attributes #[[ATTR10]] = { readnone }
-; TUNIT: attributes #[[ATTR11]] = { nounwind readonly }
-; TUNIT: attributes #[[ATTR12]] = { willreturn writeonly }
-; TUNIT: attributes #[[ATTR13]] = { readonly willreturn }
-; TUNIT: attributes #[[ATTR14]] = { nounwind }
-; TUNIT: attributes #[[ATTR15]] = { nounwind writeonly }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(write) }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR2]] = { memory(read) }
+; TUNIT: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; TUNIT: attributes #[[ATTR4:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(write) }
+; TUNIT: attributes #[[ATTR5:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(read) }
+; TUNIT: attributes #[[ATTR6]] = { nofree norecurse nosync nounwind willreturn memory(read) }
+; TUNIT: attributes #[[ATTR7]] = { nounwind memory(argmem: read) }
+; TUNIT: attributes #[[ATTR8]] = { nounwind memory(argmem: readwrite) }
+; TUNIT: attributes #[[ATTR9]] = { nofree norecurse nounwind willreturn memory(argmem: readwrite) }
+; TUNIT: attributes #[[ATTR10]] = { memory(none) }
+; TUNIT: attributes #[[ATTR11]] = { nounwind memory(read) }
+; TUNIT: attributes #[[ATTR12]] = { willreturn }
+; TUNIT: attributes #[[ATTR13]] = { nounwind }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { readonly }
-; CGSCC: attributes #[[ATTR3]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR4]] = { nofree nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR5:[0-9]+]] = { nocallback nofree nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR6:[0-9]+]] = { nocallback nofree nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR7]] = { nofree norecurse nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR8]] = { argmemonly nounwind readonly }
-; CGSCC: attributes #[[ATTR9]] = { argmemonly nounwind }
-; CGSCC: attributes #[[ATTR10]] = { argmemonly nofree norecurse nounwind willreturn }
-; CGSCC: attributes #[[ATTR11]] = { readnone }
-; CGSCC: attributes #[[ATTR12]] = { nounwind readonly }
-; CGSCC: attributes #[[ATTR13]] = { readnone willreturn }
-; CGSCC: attributes #[[ATTR14]] = { willreturn writeonly }
-; CGSCC: attributes #[[ATTR15]] = { readonly willreturn }
-; CGSCC: attributes #[[ATTR16]] = { nounwind }
-; CGSCC: attributes #[[ATTR17]] = { nounwind writeonly }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(write) }
+; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { memory(read) }
+; CGSCC: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; CGSCC: attributes #[[ATTR4]] = { nofree nosync nounwind willreturn memory(write) }
+; CGSCC: attributes #[[ATTR5:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(write) }
+; CGSCC: attributes #[[ATTR6:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(read) }
+; CGSCC: attributes #[[ATTR7]] = { nofree norecurse nosync nounwind willreturn memory(read) }
+; CGSCC: attributes #[[ATTR8]] = { nounwind memory(argmem: read) }
+; CGSCC: attributes #[[ATTR9]] = { nounwind memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR10]] = { nofree norecurse nounwind willreturn memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR11]] = { memory(none) }
+; CGSCC: attributes #[[ATTR12]] = { nounwind memory(read) }
+; CGSCC: attributes #[[ATTR13]] = { willreturn }
+; CGSCC: attributes #[[ATTR14]] = { nounwind }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/returned.ll b/llvm/test/Transforms/Attributor/returned.ll
index 5e65e826f96cc..555ffe113c3d0 100644
--- a/llvm/test/Transforms/Attributor/returned.ll
+++ b/llvm/test/Transforms/Attributor/returned.ll
@@ -41,7 +41,7 @@ target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 ; CHECK: @[[_ZTI1Y:[a-zA-Z0-9_$"\\.-]+]] = external dso_local constant { i8*, i8*, i8* }, align 8
 ;.
 define i32 @sink_r0(i32 %r) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@sink_r0
 ; CHECK-SAME: (i32 returned [[R:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -52,14 +52,14 @@ entry:
 }
 
 define i32 @scc_r1(i32 %a, i32 %r, i32 %b) #0 {
-; TUNIT: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; TUNIT: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@scc_r1
 ; TUNIT-SAME: (i32 [[A:%.*]], i32 returned [[R:%.*]], i32 [[B:%.*]]) #[[ATTR1:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    [[CALL1:%.*]] = call i32 @scc_r2(i32 [[R]], i32 [[A]], i32 [[R]]) #[[ATTR10:[0-9]+]]
 ; TUNIT-NEXT:    ret i32 [[R]]
 ;
-; CGSCC: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@scc_r1
 ; CGSCC-SAME: (i32 [[A:%.*]], i32 returned [[R:%.*]], i32 [[B:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -73,7 +73,7 @@ entry:
 }
 
 define i32 @scc_r2(i32 %a, i32 %b, i32 %r) #0 {
-; TUNIT: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; TUNIT: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@scc_r2
 ; TUNIT-SAME: (i32 [[A:%.*]], i32 [[B:%.*]], i32 returned [[R:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
@@ -108,7 +108,7 @@ define i32 @scc_r2(i32 %a, i32 %b, i32 %r) #0 {
 ; TUNIT-NEXT:    [[RETVAL_0:%.*]] = phi i32 [ [[R]], [[IF_THEN]] ], [ [[R]], [[IF_THEN3]] ], [ [[COND]], [[COND_END]] ]
 ; TUNIT-NEXT:    ret i32 [[R]]
 ;
-; CGSCC: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@scc_r2
 ; CGSCC-SAME: (i32 [[A:%.*]], i32 [[B:%.*]], i32 returned [[R:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:  entry:
@@ -188,7 +188,7 @@ return:                                           ; preds = %cond.end, %if.then3
 }
 
 define i32 @scc_rX(i32 %a, i32 %b, i32 %r) #0 {
-; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind readnone uwtable
+; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@scc_rX
 ; TUNIT-SAME: (i32 [[A:%.*]], i32 [[B:%.*]], i32 [[R:%.*]]) #[[ATTR2:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
@@ -223,7 +223,7 @@ define i32 @scc_rX(i32 %a, i32 %b, i32 %r) #0 {
 ; TUNIT-NEXT:    [[RETVAL_0:%.*]] = phi i32 [ [[R]], [[IF_THEN]] ], [ [[B]], [[IF_THEN3]] ], [ [[COND]], [[COND_END]] ]
 ; TUNIT-NEXT:    ret i32 [[RETVAL_0]]
 ;
-; CGSCC: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@scc_rX
 ; CGSCC-SAME: (i32 [[A:%.*]], i32 [[B:%.*]], i32 [[R:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:  entry:
@@ -325,7 +325,7 @@ return:                                           ; preds = %cond.end, %if.then3
 ;   return a == b ? r : ptr_scc_r2(a, b, r);
 ; }
 define double* @ptr_sink_r0(double* %r) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@ptr_sink_r0
 ; CHECK-SAME: (double* nofree readnone returned "no-capture-maybe-returned" [[R:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -336,14 +336,14 @@ entry:
 }
 
 define double* @ptr_scc_r1(double* %a, double* %r, double* %b) #0 {
-; TUNIT: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; TUNIT: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@ptr_scc_r1
 ; TUNIT-SAME: (double* nocapture nofree readnone [[A:%.*]], double* nofree readnone returned "no-capture-maybe-returned" [[R:%.*]], double* nocapture nofree readnone [[B:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    [[CALL1:%.*]] = call double* @ptr_scc_r2(double* noalias nocapture nofree readnone [[R]], double* noalias nocapture nofree readnone [[A]], double* noalias nofree readnone "no-capture-maybe-returned" [[R]]) #[[ATTR10]]
 ; TUNIT-NEXT:    ret double* [[R]]
 ;
-; CGSCC: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@ptr_scc_r1
 ; CGSCC-SAME: (double* nocapture nofree readnone [[A:%.*]], double* nofree readnone returned [[R:%.*]], double* nocapture nofree readnone [[B:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:  entry:
@@ -357,7 +357,7 @@ entry:
 }
 
 define double* @ptr_scc_r2(double* %a, double* %b, double* %r) #0 {
-; TUNIT: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; TUNIT: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@ptr_scc_r2
 ; TUNIT-SAME: (double* nocapture nofree readnone [[A:%.*]], double* nocapture nofree readnone [[B:%.*]], double* nofree readnone returned "no-capture-maybe-returned" [[R:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
@@ -392,7 +392,7 @@ define double* @ptr_scc_r2(double* %a, double* %b, double* %r) #0 {
 ; TUNIT-NEXT:    [[RETVAL_0:%.*]] = phi double* [ [[R]], [[IF_THEN]] ], [ [[R]], [[IF_THEN3]] ], [ [[COND]], [[COND_END]] ]
 ; TUNIT-NEXT:    ret double* [[R]]
 ;
-; CGSCC: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@ptr_scc_r2
 ; CGSCC-SAME: (double* nocapture nofree readnone [[A:%.*]], double* nocapture nofree readnone [[B:%.*]], double* nofree readnone returned [[R:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:  entry:
@@ -479,18 +479,18 @@ return:                                           ; preds = %cond.end, %if.then3
 ; }
 ;
 define i32* @rt0(i32* %a) #0 {
-; TUNIT: Function Attrs: argmemonly nofree noinline nosync nounwind readonly uwtable
+; TUNIT: Function Attrs: nofree noinline nosync nounwind memory(argmem: read) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@rt0
 ; TUNIT-SAME: (i32* nofree noundef nonnull readonly returned align 4 dereferenceable(4) "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR3:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
-; TUNIT-NEXT:    [[CALL:%.*]] = call i32* @rt0(i32* nofree noundef nonnull readonly align 4 dereferenceable(4) "no-capture-maybe-returned" [[A]]) #[[ATTR11:[0-9]+]]
+; TUNIT-NEXT:    [[CALL:%.*]] = call i32* @rt0(i32* nofree noundef nonnull readonly align 4 dereferenceable(4) "no-capture-maybe-returned" [[A]]) #[[ATTR10]]
 ; TUNIT-NEXT:    ret i32* [[A]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree noinline nosync nounwind readonly uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind memory(argmem: read) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@rt0
 ; CGSCC-SAME: (i32* nofree noundef nonnull readonly returned align 4 dereferenceable(4) "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR2:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
-; CGSCC-NEXT:    [[CALL:%.*]] = call i32* @rt0(i32* nofree noundef nonnull readonly align 4 dereferenceable(4) "no-capture-maybe-returned" [[A]]) #[[ATTR9:[0-9]+]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call i32* @rt0(i32* nofree noundef nonnull readonly align 4 dereferenceable(4) "no-capture-maybe-returned" [[A]]) #[[ATTR7]]
 ; CGSCC-NEXT:    ret i32* [[A]]
 ;
 entry:
@@ -508,13 +508,13 @@ entry:
 ; }
 ;
 define i32* @rt1(i32* %a) #0 {
-; TUNIT: Function Attrs: nofree noinline nosync nounwind readnone willreturn uwtable
+; TUNIT: Function Attrs: nofree noinline nosync nounwind willreturn memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@rt1
 ; TUNIT-SAME: (i32* nocapture nofree nonnull readnone align 4 dereferenceable(4) [[A:%.*]]) #[[ATTR4:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    ret i32* undef
 ;
-; CGSCC: Function Attrs: nofree noinline nosync nounwind readnone willreturn uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind willreturn memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@rt1
 ; CGSCC-SAME: (i32* nocapture nofree nonnull readnone align 4 dereferenceable(4) [[A:%.*]]) #[[ATTR3:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -531,14 +531,14 @@ entry:
 ; TEST another SCC test
 ;
 define i32* @rt2_helper(i32* %a) #0 {
-; TUNIT: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; TUNIT: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@rt2_helper
 ; TUNIT-SAME: (i32* nofree readnone returned [[A:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    [[CALL:%.*]] = call i32* @rt2(i32* noalias nofree readnone [[A]], i32* noalias nofree readnone "no-capture-maybe-returned" [[A]]) #[[ATTR10]]
 ; TUNIT-NEXT:    ret i32* [[A]]
 ;
-; CGSCC: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@rt2_helper
 ; CGSCC-SAME: (i32* nofree readnone returned [[A:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:  entry:
@@ -551,7 +551,7 @@ entry:
 }
 
 define i32* @rt2(i32* %a, i32 *%b) #0 {
-; TUNIT: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; TUNIT: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@rt2
 ; TUNIT-SAME: (i32* nofree readnone [[A:%.*]], i32* nofree readnone "no-capture-maybe-returned" [[B:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
@@ -564,7 +564,7 @@ define i32* @rt2(i32* %a, i32 *%b) #0 {
 ; TUNIT-NEXT:    [[SEL:%.*]] = phi i32* [ [[B]], [[ENTRY:%.*]] ], [ [[A]], [[IF_THEN]] ]
 ; TUNIT-NEXT:    ret i32* [[SEL]]
 ;
-; CGSCC: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@rt2
 ; CGSCC-SAME: (i32* nofree readnone [[A:%.*]], i32* nofree readnone "no-capture-maybe-returned" [[B:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:  entry:
@@ -593,14 +593,14 @@ if.end:
 ; TEST another SCC test
 ;
 define i32* @rt3_helper(i32* %a, i32* %b) #0 {
-; TUNIT: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; TUNIT: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@rt3_helper
 ; TUNIT-SAME: (i32* nocapture nofree readnone [[A:%.*]], i32* nofree readnone returned "no-capture-maybe-returned" [[B:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    [[CALL:%.*]] = call i32* @rt3(i32* noalias nocapture nofree readnone [[A]], i32* noalias nofree readnone "no-capture-maybe-returned" [[B]]) #[[ATTR10]]
 ; TUNIT-NEXT:    ret i32* [[B]]
 ;
-; CGSCC: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@rt3_helper
 ; CGSCC-SAME: (i32* nocapture nofree readnone [[A:%.*]], i32* nofree readnone returned "no-capture-maybe-returned" [[B:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:  entry:
@@ -613,7 +613,7 @@ entry:
 }
 
 define i32* @rt3(i32* %a, i32 *%b) #0 {
-; TUNIT: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; TUNIT: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@rt3
 ; TUNIT-SAME: (i32* nocapture nofree readnone [[A:%.*]], i32* nofree readnone returned "no-capture-maybe-returned" [[B:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
@@ -626,7 +626,7 @@ define i32* @rt3(i32* %a, i32 *%b) #0 {
 ; TUNIT-NEXT:    [[SEL:%.*]] = phi i32* [ [[B]], [[ENTRY:%.*]] ], [ [[B]], [[IF_THEN]] ]
 ; TUNIT-NEXT:    ret i32* [[B]]
 ;
-; CGSCC: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@rt3
 ; CGSCC-SAME: (i32* nocapture nofree readnone [[A:%.*]], i32* nofree readnone returned "no-capture-maybe-returned" [[B:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:  entry:
@@ -667,13 +667,13 @@ define i32* @calls_unknown_fn(i32* %r) #0 {
 ; TUNIT: Function Attrs: noinline nounwind uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@calls_unknown_fn
 ; TUNIT-SAME: (i32* nofree readnone returned "no-capture-maybe-returned" [[R:%.*]]) #[[ATTR5:[0-9]+]] {
-; TUNIT-NEXT:    tail call void @unknown_fn(i32* (i32*)* noundef nonnull @calls_unknown_fn) #[[ATTR12:[0-9]+]]
+; TUNIT-NEXT:    tail call void @unknown_fn(i32* (i32*)* noundef nonnull @calls_unknown_fn) #[[ATTR11:[0-9]+]]
 ; TUNIT-NEXT:    ret i32* [[R]]
 ;
 ; CGSCC: Function Attrs: noinline nounwind uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@calls_unknown_fn
 ; CGSCC-SAME: (i32* nofree readnone returned "no-capture-maybe-returned" [[R:%.*]]) #[[ATTR4:[0-9]+]] {
-; CGSCC-NEXT:    tail call void @unknown_fn(i32* (i32*)* noundef nonnull @calls_unknown_fn) #[[ATTR10:[0-9]+]]
+; CGSCC-NEXT:    tail call void @unknown_fn(i32* (i32*)* noundef nonnull @calls_unknown_fn) #[[ATTR8]]
 ; CGSCC-NEXT:    ret i32* [[R]]
 ;
   tail call void @unknown_fn(i32* (i32*)* nonnull @calls_unknown_fn)
@@ -716,14 +716,14 @@ define i32* @calls_maybe_redefined_fn(i32* %r) #0 {
 ; TUNIT-LABEL: define {{[^@]+}}@calls_maybe_redefined_fn
 ; TUNIT-SAME: (i32* returned [[R:%.*]]) #[[ATTR6:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
-; TUNIT-NEXT:    [[CALL:%.*]] = call i32* @maybe_redefined_fn(i32* [[R]]) #[[ATTR12]]
+; TUNIT-NEXT:    [[CALL:%.*]] = call i32* @maybe_redefined_fn(i32* [[R]]) #[[ATTR11]]
 ; TUNIT-NEXT:    ret i32* [[R]]
 ;
 ; CGSCC: Function Attrs: noinline nounwind uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@calls_maybe_redefined_fn
 ; CGSCC-SAME: (i32* returned [[R:%.*]]) #[[ATTR4]] {
 ; CGSCC-NEXT:  entry:
-; CGSCC-NEXT:    [[CALL:%.*]] = call i32* @maybe_redefined_fn(i32* [[R]]) #[[ATTR10]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call i32* @maybe_redefined_fn(i32* [[R]]) #[[ATTR8]]
 ; CGSCC-NEXT:    ret i32* [[R]]
 ;
 entry:
@@ -765,14 +765,14 @@ define i32* @calls_maybe_redefined_fn2(i32* %r) #0 {
 ; TUNIT-LABEL: define {{[^@]+}}@calls_maybe_redefined_fn2
 ; TUNIT-SAME: (i32* [[R:%.*]]) #[[ATTR6]] {
 ; TUNIT-NEXT:  entry:
-; TUNIT-NEXT:    [[CALL:%.*]] = call i32* @maybe_redefined_fn2(i32* [[R]]) #[[ATTR12]]
+; TUNIT-NEXT:    [[CALL:%.*]] = call i32* @maybe_redefined_fn2(i32* [[R]]) #[[ATTR11]]
 ; TUNIT-NEXT:    ret i32* [[CALL]]
 ;
 ; CGSCC: Function Attrs: noinline nounwind uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@calls_maybe_redefined_fn2
 ; CGSCC-SAME: (i32* [[R:%.*]]) #[[ATTR4]] {
 ; CGSCC-NEXT:  entry:
-; CGSCC-NEXT:    [[CALL:%.*]] = call i32* @maybe_redefined_fn2(i32* [[R]]) #[[ATTR10]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call i32* @maybe_redefined_fn2(i32* [[R]]) #[[ATTR8]]
 ; CGSCC-NEXT:    ret i32* [[CALL]]
 ;
 entry:
@@ -791,7 +791,7 @@ entry:
 ; }
 ;
 define double @select_and_phi(double %b) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@select_and_phi
 ; CHECK-SAME: (double returned [[B:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -827,7 +827,7 @@ if.end:                                           ; preds = %if.then, %entry
 ; }
 ;
 define double @recursion_select_and_phi(i32 %a, double %b) #0 {
-; TUNIT: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; TUNIT: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@recursion_select_and_phi
 ; TUNIT-SAME: (i32 [[A:%.*]], double returned [[B:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
@@ -840,7 +840,7 @@ define double @recursion_select_and_phi(i32 %a, double %b) #0 {
 ; TUNIT:       if.end:
 ; TUNIT-NEXT:    ret double [[B]]
 ;
-; CGSCC: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@recursion_select_and_phi
 ; CGSCC-SAME: (i32 [[A:%.*]], double returned [[B:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:  entry:
@@ -877,7 +877,7 @@ if.end:                                           ; preds = %if.then, %entry
 ; }
 ;
 define double* @bitcast(i32* %b) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@bitcast
 ; CHECK-SAME: (i32* nofree readnone "no-capture-maybe-returned" [[B:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -900,7 +900,7 @@ entry:
 ; }
 ;
 define double* @bitcasts_select_and_phi(i32* %b) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@bitcasts_select_and_phi
 ; CHECK-SAME: (i32* nofree readnone [[B:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -950,7 +950,7 @@ if.end:                                           ; preds = %if.then, %entry
 ; }
 ;
 define double* @ret_arg_arg_undef(i32* %b) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@ret_arg_arg_undef
 ; CHECK-SAME: (i32* nofree readnone [[B:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -998,7 +998,7 @@ ret_undef:
 ; }
 ;
 define double* @ret_undef_arg_arg(i32* %b) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@ret_undef_arg_arg
 ; CHECK-SAME: (i32* nofree readnone [[B:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -1046,7 +1046,7 @@ ret_arg1:
 ; }
 ;
 define double* @ret_undef_arg_undef(i32* %b) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@ret_undef_arg_undef
 ; CHECK-SAME: (i32* nofree readnone [[B:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -1179,7 +1179,7 @@ r:
 ; TEST inconsistent IR in dead code.
 ;
 define i32 @deadblockcall1(i32 %A) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@deadblockcall1
 ; CHECK-SAME: (i32 returned [[A:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -1197,7 +1197,7 @@ unreachableblock:
 declare i32 @deadblockcall_helper(i32 returned %A);
 
 define i32 @deadblockcall2(i32 %A) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@deadblockcall2
 ; CHECK-SAME: (i32 returned [[A:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -1218,7 +1218,7 @@ unreachableblock2:
 }
 
 define i32 @deadblockphi1(i32 %A) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@deadblockphi1
 ; CHECK-SAME: (i32 returned [[A:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -1244,7 +1244,7 @@ r:
 }
 
 define i32 @deadblockphi2(i32 %A) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@deadblockphi2
 ; CHECK-SAME: (i32 returned [[A:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:  entry:
@@ -1410,7 +1410,7 @@ define i32 @exact(i32* align 8 %a, i32* align 8 %b) {
 
 @G = external global i8
 define i32* @ret_const() #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@ret_const
 ; CHECK-SAME: () #[[ATTR0]] {
 ; CHECK-NEXT:    ret i32* bitcast (i8* @G to i32*)
@@ -1419,30 +1419,30 @@ define i32* @ret_const() #0 {
   ret i32* %bc
 }
 define i32* @use_const() #0 {
-; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@use_const
 ; TUNIT-SAME: () #[[ATTR0]] {
 ; TUNIT-NEXT:    ret i32* bitcast (i8* @G to i32*)
 ;
-; CGSCC: Function Attrs: nofree noinline nosync nounwind readnone willreturn uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind willreturn memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@use_const
 ; CGSCC-SAME: () #[[ATTR3]] {
-; CGSCC-NEXT:    [[C:%.*]] = call noundef nonnull dereferenceable(1) i32* @ret_const() #[[ATTR11:[0-9]+]]
+; CGSCC-NEXT:    [[C:%.*]] = call noundef nonnull dereferenceable(1) i32* @ret_const() #[[ATTR9:[0-9]+]]
 ; CGSCC-NEXT:    ret i32* [[C]]
 ;
   %c = call i32* @ret_const()
   ret i32* %c
 }
 define i32* @dont_use_const() #0 {
-; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@dont_use_const
 ; TUNIT-SAME: () #[[ATTR0]] {
 ; TUNIT-NEXT:    ret i32* bitcast (i8* @G to i32*)
 ;
-; CGSCC: Function Attrs: nofree noinline nosync nounwind readnone willreturn uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind willreturn memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@dont_use_const
 ; CGSCC-SAME: () #[[ATTR3]] {
-; CGSCC-NEXT:    [[C:%.*]] = musttail call noundef nonnull dereferenceable(1) i32* @ret_const() #[[ATTR11]]
+; CGSCC-NEXT:    [[C:%.*]] = musttail call noundef nonnull dereferenceable(1) i32* @ret_const() #[[ATTR9]]
 ; CGSCC-NEXT:    ret i32* [[C]]
 ;
   %c = musttail call i32* @ret_const()
@@ -1494,31 +1494,27 @@ declare dso_local i8* @__dynamic_cast(i8*, i8*, i8*, i64)
 
 attributes #0 = { noinline nounwind uwtable }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind readnone willreturn uwtable }
-; TUNIT: attributes #[[ATTR1]] = { nofree noinline nosync nounwind readnone uwtable }
-; TUNIT: attributes #[[ATTR2]] = { nofree noinline norecurse nosync nounwind readnone uwtable }
-; TUNIT: attributes #[[ATTR3]] = { argmemonly nofree noinline nosync nounwind readonly uwtable }
-; TUNIT: attributes #[[ATTR4]] = { nofree noinline nosync nounwind readnone willreturn uwtable }
+; TUNIT: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable }
+; TUNIT: attributes #[[ATTR1]] = { nofree noinline nosync nounwind memory(none) uwtable }
+; TUNIT: attributes #[[ATTR2]] = { nofree noinline norecurse nosync nounwind memory(none) uwtable }
+; TUNIT: attributes #[[ATTR3]] = { nofree noinline nosync nounwind memory(argmem: read) uwtable }
+; TUNIT: attributes #[[ATTR4]] = { nofree noinline nosync nounwind willreturn memory(none) uwtable }
 ; TUNIT: attributes #[[ATTR5]] = { noinline nounwind uwtable }
 ; TUNIT: attributes #[[ATTR6]] = { noinline norecurse nounwind uwtable }
 ; TUNIT: attributes #[[ATTR7]] = { noreturn }
 ; TUNIT: attributes #[[ATTR8]] = { norecurse }
-; TUNIT: attributes #[[ATTR9:[0-9]+]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR10]] = { nofree nosync nounwind readnone }
-; TUNIT: attributes #[[ATTR11]] = { nofree nosync nounwind readonly }
-; TUNIT: attributes #[[ATTR12]] = { nounwind }
-; TUNIT: attributes #[[ATTR13:[0-9]+]] = { nounwind readnone }
+; TUNIT: attributes #[[ATTR9:[0-9]+]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR10]] = { nofree nosync nounwind }
+; TUNIT: attributes #[[ATTR11]] = { nounwind }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind readnone willreturn uwtable }
-; CGSCC: attributes #[[ATTR1]] = { nofree noinline nosync nounwind readnone uwtable }
-; CGSCC: attributes #[[ATTR2]] = { argmemonly nofree noinline nosync nounwind readonly uwtable }
-; CGSCC: attributes #[[ATTR3]] = { nofree noinline nosync nounwind readnone willreturn uwtable }
+; CGSCC: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable }
+; CGSCC: attributes #[[ATTR1]] = { nofree noinline nosync nounwind memory(none) uwtable }
+; CGSCC: attributes #[[ATTR2]] = { nofree noinline nosync nounwind memory(argmem: read) uwtable }
+; CGSCC: attributes #[[ATTR3]] = { nofree noinline nosync nounwind willreturn memory(none) uwtable }
 ; CGSCC: attributes #[[ATTR4]] = { noinline nounwind uwtable }
 ; CGSCC: attributes #[[ATTR5]] = { noreturn }
-; CGSCC: attributes #[[ATTR6:[0-9]+]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR7]] = { nofree nosync nounwind readnone }
-; CGSCC: attributes #[[ATTR8]] = { nounwind readnone }
-; CGSCC: attributes #[[ATTR9]] = { nofree nosync nounwind readonly }
-; CGSCC: attributes #[[ATTR10]] = { nounwind }
-; CGSCC: attributes #[[ATTR11]] = { readnone willreturn }
+; CGSCC: attributes #[[ATTR6:[0-9]+]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR7]] = { nofree nosync nounwind }
+; CGSCC: attributes #[[ATTR8]] = { nounwind }
+; CGSCC: attributes #[[ATTR9]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/undefined_behavior.ll b/llvm/test/Transforms/Attributor/undefined_behavior.ll
index a54b067acb0fa..23384c705debc 100644
--- a/llvm/test/Transforms/Attributor/undefined_behavior.ll
+++ b/llvm/test/Transforms/Attributor/undefined_behavior.ll
@@ -11,7 +11,7 @@ target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 ; -- Load tests --
 
 define void @load_wholly_unreachable() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@load_wholly_unreachable
 ; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    unreachable
@@ -21,7 +21,7 @@ define void @load_wholly_unreachable() {
 }
 
 define void @loads_wholly_unreachable() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@loads_wholly_unreachable
 ; CHECK-SAME: () #[[ATTR0]] {
 ; CHECK-NEXT:    unreachable
@@ -33,7 +33,7 @@ define void @loads_wholly_unreachable() {
 
 
 define void @load_single_bb_unreachable(i1 %cond) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@load_single_bb_unreachable
 ; CHECK-SAME: (i1 [[COND:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    br i1 [[COND]], label [[T:%.*]], label [[E:%.*]]
@@ -53,7 +53,7 @@ e:
 ; Note that while the load is removed (because it's unused), the block
 ; is not changed to unreachable
 define void @load_null_pointer_is_defined() null_pointer_is_valid {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind null_pointer_is_valid readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind null_pointer_is_valid willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@load_null_pointer_is_defined
 ; CHECK-SAME: () #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:    ret void
@@ -63,7 +63,7 @@ define void @load_null_pointer_is_defined() null_pointer_is_valid {
 }
 
 define internal i32* @ret_null() {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@ret_null
 ; CGSCC-SAME: () #[[ATTR0]] {
 ; CGSCC-NEXT:    ret i32* null
@@ -72,12 +72,12 @@ define internal i32* @ret_null() {
 }
 
 define void @load_null_propagated() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@load_null_propagated
 ; TUNIT-SAME: () #[[ATTR0]] {
 ; TUNIT-NEXT:    unreachable
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@load_null_propagated
 ; CGSCC-SAME: () #[[ATTR2:[0-9]+]] {
 ; CGSCC-NEXT:    ret void
@@ -90,7 +90,7 @@ define void @load_null_propagated() {
 ; -- Store tests --
 
 define void @store_wholly_unreachable() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@store_wholly_unreachable
 ; CHECK-SAME: () #[[ATTR0]] {
 ; CHECK-NEXT:    unreachable
@@ -100,13 +100,13 @@ define void @store_wholly_unreachable() {
 }
 
 define void @store_wholly_unreachable_volatile() {
-; TUNIT: Function Attrs: nofree norecurse nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@store_wholly_unreachable_volatile
 ; TUNIT-SAME: () #[[ATTR2:[0-9]+]] {
 ; TUNIT-NEXT:    store volatile i32 5, i32* null, align 4294967296
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree norecurse nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@store_wholly_unreachable_volatile
 ; CGSCC-SAME: () #[[ATTR3:[0-9]+]] {
 ; CGSCC-NEXT:    store volatile i32 5, i32* null, align 4294967296
@@ -117,7 +117,7 @@ define void @store_wholly_unreachable_volatile() {
 }
 
 define void @store_single_bb_unreachable(i1 %cond) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@store_single_bb_unreachable
 ; CHECK-SAME: (i1 [[COND:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    br i1 [[COND]], label [[T:%.*]], label [[E:%.*]]
@@ -135,13 +135,13 @@ e:
 }
 
 define void @store_null_pointer_is_defined() null_pointer_is_valid {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind null_pointer_is_valid willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind null_pointer_is_valid willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@store_null_pointer_is_defined
 ; TUNIT-SAME: () #[[ATTR3:[0-9]+]] {
 ; TUNIT-NEXT:    store i32 5, i32* null, align 4294967296
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind null_pointer_is_valid willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind null_pointer_is_valid willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@store_null_pointer_is_defined
 ; CGSCC-SAME: () #[[ATTR4:[0-9]+]] {
 ; CGSCC-NEXT:    store i32 5, i32* null, align 4294967296
@@ -155,12 +155,12 @@ define void @store_null_propagated() {
 ; ATTRIBUTOR-LABEL: @store_null_propagated(
 ; ATTRIBUTOR-NEXT:    unreachable
 ;
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@store_null_propagated
 ; TUNIT-SAME: () #[[ATTR0]] {
 ; TUNIT-NEXT:    unreachable
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@store_null_propagated
 ; CGSCC-SAME: () #[[ATTR5:[0-9]+]] {
 ; CGSCC-NEXT:    [[PTR:%.*]] = call noalias align 4294967296 i32* @ret_null() #[[ATTR10:[0-9]+]]
@@ -174,12 +174,12 @@ define void @store_null_propagated() {
 ; -- AtomicRMW tests --
 
 define void @atomicrmw_wholly_unreachable() {
-; TUNIT: Function Attrs: nofree norecurse nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@atomicrmw_wholly_unreachable
 ; TUNIT-SAME: () #[[ATTR2]] {
 ; TUNIT-NEXT:    unreachable
 ;
-; CGSCC: Function Attrs: nofree norecurse nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@atomicrmw_wholly_unreachable
 ; CGSCC-SAME: () #[[ATTR3]] {
 ; CGSCC-NEXT:    unreachable
@@ -189,7 +189,7 @@ define void @atomicrmw_wholly_unreachable() {
 }
 
 define void @atomicrmw_single_bb_unreachable(i1 %cond) {
-; TUNIT: Function Attrs: nofree norecurse nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@atomicrmw_single_bb_unreachable
 ; TUNIT-SAME: (i1 [[COND:%.*]]) #[[ATTR2]] {
 ; TUNIT-NEXT:    br i1 [[COND]], label [[T:%.*]], label [[E:%.*]]
@@ -198,7 +198,7 @@ define void @atomicrmw_single_bb_unreachable(i1 %cond) {
 ; TUNIT:       e:
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree norecurse nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@atomicrmw_single_bb_unreachable
 ; CGSCC-SAME: (i1 [[COND:%.*]]) #[[ATTR3]] {
 ; CGSCC-NEXT:    br i1 [[COND]], label [[T:%.*]], label [[E:%.*]]
@@ -236,7 +236,7 @@ define void @atomicrmw_null_propagated() {
 ; ATTRIBUTOR-LABEL: @atomicrmw_null_propagated(
 ; ATTRIBUTOR-NEXT:    unreachable
 ;
-; TUNIT: Function Attrs: nofree norecurse nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@atomicrmw_null_propagated
 ; TUNIT-SAME: () #[[ATTR2]] {
 ; TUNIT-NEXT:    unreachable
@@ -256,12 +256,12 @@ define void @atomicrmw_null_propagated() {
 ; -- AtomicCmpXchg tests --
 
 define void @atomiccmpxchg_wholly_unreachable() {
-; TUNIT: Function Attrs: nofree norecurse nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@atomiccmpxchg_wholly_unreachable
 ; TUNIT-SAME: () #[[ATTR2]] {
 ; TUNIT-NEXT:    unreachable
 ;
-; CGSCC: Function Attrs: nofree norecurse nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@atomiccmpxchg_wholly_unreachable
 ; CGSCC-SAME: () #[[ATTR3]] {
 ; CGSCC-NEXT:    unreachable
@@ -271,7 +271,7 @@ define void @atomiccmpxchg_wholly_unreachable() {
 }
 
 define void @atomiccmpxchg_single_bb_unreachable(i1 %cond) {
-; TUNIT: Function Attrs: nofree norecurse nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@atomiccmpxchg_single_bb_unreachable
 ; TUNIT-SAME: (i1 [[COND:%.*]]) #[[ATTR2]] {
 ; TUNIT-NEXT:    br i1 [[COND]], label [[T:%.*]], label [[E:%.*]]
@@ -280,7 +280,7 @@ define void @atomiccmpxchg_single_bb_unreachable(i1 %cond) {
 ; TUNIT:       e:
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree norecurse nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@atomiccmpxchg_single_bb_unreachable
 ; CGSCC-SAME: (i1 [[COND:%.*]]) #[[ATTR3]] {
 ; CGSCC-NEXT:    br i1 [[COND]], label [[T:%.*]], label [[E:%.*]]
@@ -318,7 +318,7 @@ define void @atomiccmpxchg_null_propagated() {
 ; ATTRIBUTOR-LABEL: @atomiccmpxchg_null_propagated(
 ; ATTRIBUTOR-NEXT:    unreachable
 ;
-; TUNIT: Function Attrs: nofree norecurse nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@atomiccmpxchg_null_propagated
 ; TUNIT-SAME: () #[[ATTR2]] {
 ; TUNIT-NEXT:    unreachable
@@ -340,7 +340,7 @@ define void @atomiccmpxchg_null_propagated() {
 ; Note: The unreachable on %t and %e is _not_ from AAUndefinedBehavior
 
 define i32 @cond_br_on_undef() {
-; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@cond_br_on_undef
 ; TUNIT-SAME: () #[[ATTR5:[0-9]+]] {
 ; TUNIT-NEXT:    unreachable
@@ -349,7 +349,7 @@ define i32 @cond_br_on_undef() {
 ; TUNIT:       e:
 ; TUNIT-NEXT:    unreachable
 ;
-; CGSCC: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse noreturn nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@cond_br_on_undef
 ; CGSCC-SAME: () #[[ATTR8:[0-9]+]] {
 ; CGSCC-NEXT:    unreachable
@@ -369,7 +369,7 @@ e:
   ; Valid branch - verify that this is not converted
   ; to unreachable.
 define void @cond_br_on_undef2(i1 %cond) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@cond_br_on_undef2
 ; CHECK-SAME: (i1 [[COND:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    br i1 [[COND]], label [[T1:%.*]], label [[E1:%.*]]
@@ -394,7 +394,7 @@ e1:
 }
 
 define i1 @ret_undef() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@ret_undef
 ; CHECK-SAME: () #[[ATTR0]] {
 ; CHECK-NEXT:    ret i1 undef
@@ -403,7 +403,7 @@ define i1 @ret_undef() {
 }
 
 define void @cond_br_on_undef_interproc() {
-; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@cond_br_on_undef_interproc
 ; TUNIT-SAME: () #[[ATTR5]] {
 ; TUNIT-NEXT:    unreachable
@@ -412,7 +412,7 @@ define void @cond_br_on_undef_interproc() {
 ; TUNIT:       e:
 ; TUNIT-NEXT:    unreachable
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@cond_br_on_undef_interproc
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    [[COND:%.*]] = call i1 @ret_undef() #[[ATTR10]]
@@ -431,7 +431,7 @@ e:
 }
 
 define i1 @ret_undef2() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@ret_undef2
 ; CHECK-SAME: () #[[ATTR0]] {
 ; CHECK-NEXT:    br i1 true, label [[T:%.*]], label [[E:%.*]]
@@ -449,7 +449,7 @@ e:
 
 ; More complicated interproc deduction of undef
 define void @cond_br_on_undef_interproc2() {
-; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@cond_br_on_undef_interproc2
 ; TUNIT-SAME: () #[[ATTR5]] {
 ; TUNIT-NEXT:    unreachable
@@ -458,7 +458,7 @@ define void @cond_br_on_undef_interproc2() {
 ; TUNIT:       e:
 ; TUNIT-NEXT:    unreachable
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@cond_br_on_undef_interproc2
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    [[COND:%.*]] = call i1 @ret_undef2() #[[ATTR10]]
@@ -479,7 +479,7 @@ e:
 ; Branch on undef that depends on propagation of
 ; undef of a previous instruction.
 define i32 @cond_br_on_undef3() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@cond_br_on_undef3
 ; CHECK-SAME: () #[[ATTR0]] {
 ; CHECK-NEXT:    [[COND:%.*]] = icmp ne i32 1, undef
@@ -500,7 +500,7 @@ e:
 ; Branch on undef because of uninitialized value.
 ; FIXME: Currently it doesn't propagate the undef.
 define i32 @cond_br_on_undef_uninit() {
-; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@cond_br_on_undef_uninit
 ; TUNIT-SAME: () #[[ATTR5]] {
 ; TUNIT-NEXT:    unreachable
@@ -509,7 +509,7 @@ define i32 @cond_br_on_undef_uninit() {
 ; TUNIT:       e:
 ; TUNIT-NEXT:    unreachable
 ;
-; CGSCC: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse noreturn nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@cond_br_on_undef_uninit
 ; CGSCC-SAME: () #[[ATTR8]] {
 ; CGSCC-NEXT:    unreachable
@@ -533,7 +533,7 @@ e:
 ; MODULE-NOT: @callee(
 define internal i32 @callee(i1 %C, i32* %A) {
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@callee
 ; CGSCC-SAME: () #[[ATTR0]] {
 ; CGSCC-NEXT:  entry:
@@ -555,12 +555,12 @@ F:
 }
 
 define i32 @foo() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@foo
 ; TUNIT-SAME: () #[[ATTR0]] {
 ; TUNIT-NEXT:    ret i32 1
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@foo
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    [[X:%.*]] = call noundef i32 @callee() #[[ATTR10]]
@@ -575,13 +575,13 @@ define i32 @foo() {
 ; Tests for argument position
 
 define void @arg_nonnull_1(i32* nonnull %a) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@arg_nonnull_1
 ; TUNIT-SAME: (i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[A:%.*]]) #[[ATTR6:[0-9]+]] {
 ; TUNIT-NEXT:    store i32 0, i32* [[A]], align 4
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@arg_nonnull_1
 ; CGSCC-SAME: (i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[A:%.*]]) #[[ATTR9:[0-9]+]] {
 ; CGSCC-NEXT:    store i32 0, i32* [[A]], align 4
@@ -592,13 +592,13 @@ define void @arg_nonnull_1(i32* nonnull %a) {
 }
 
 define void @arg_nonnull_1_noundef_1(i32* nonnull noundef %a) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@arg_nonnull_1_noundef_1
 ; TUNIT-SAME: (i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[A:%.*]]) #[[ATTR6]] {
 ; TUNIT-NEXT:    store i32 0, i32* [[A]], align 4
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@arg_nonnull_1_noundef_1
 ; CGSCC-SAME: (i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[A:%.*]]) #[[ATTR9]] {
 ; CGSCC-NEXT:    store i32 0, i32* [[A]], align 4
@@ -609,7 +609,7 @@ define void @arg_nonnull_1_noundef_1(i32* nonnull noundef %a) {
 }
 
 define void @arg_nonnull_12(i32* nonnull %a, i32* nonnull %b, i32* %c) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@arg_nonnull_12
 ; TUNIT-SAME: (i32* nocapture nofree nonnull writeonly [[A:%.*]], i32* nocapture nofree nonnull writeonly [[B:%.*]], i32* nofree writeonly [[C:%.*]]) #[[ATTR6]] {
 ; TUNIT-NEXT:    [[D:%.*]] = icmp eq i32* [[C]], null
@@ -623,7 +623,7 @@ define void @arg_nonnull_12(i32* nonnull %a, i32* nonnull %b, i32* %c) {
 ; TUNIT:       ret:
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@arg_nonnull_12
 ; CGSCC-SAME: (i32* nocapture nofree nonnull writeonly [[A:%.*]], i32* nocapture nofree nonnull writeonly [[B:%.*]], i32* nofree writeonly [[C:%.*]]) #[[ATTR9]] {
 ; CGSCC-NEXT:    [[D:%.*]] = icmp eq i32* [[C]], null
@@ -650,7 +650,7 @@ ret:
 }
 
 define void @arg_nonnull_12_noundef_2(i32* nonnull %a, i32* noundef nonnull %b, i32* %c) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@arg_nonnull_12_noundef_2
 ; TUNIT-SAME: (i32* nocapture nofree nonnull writeonly [[A:%.*]], i32* nocapture nofree noundef nonnull writeonly [[B:%.*]], i32* nofree writeonly [[C:%.*]]) #[[ATTR6]] {
 ; TUNIT-NEXT:    [[D:%.*]] = icmp eq i32* [[C]], null
@@ -664,7 +664,7 @@ define void @arg_nonnull_12_noundef_2(i32* nonnull %a, i32* noundef nonnull %b,
 ; TUNIT:       ret:
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@arg_nonnull_12_noundef_2
 ; CGSCC-SAME: (i32* nocapture nofree nonnull writeonly [[A:%.*]], i32* nocapture nofree noundef nonnull writeonly [[B:%.*]], i32* nofree writeonly [[C:%.*]]) #[[ATTR9]] {
 ; CGSCC-NEXT:    [[D:%.*]] = icmp eq i32* [[C]], null
@@ -692,12 +692,12 @@ ret:
 
 ; Pass null directly to argument with nonnull attribute
 define void @arg_nonnull_violation1_1() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@arg_nonnull_violation1_1
 ; TUNIT-SAME: () #[[ATTR0]] {
 ; TUNIT-NEXT:    unreachable
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@arg_nonnull_violation1_1
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    unreachable
@@ -707,12 +707,12 @@ define void @arg_nonnull_violation1_1() {
 }
 
 define void @arg_nonnull_violation1_2() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@arg_nonnull_violation1_2
 ; TUNIT-SAME: () #[[ATTR0]] {
 ; TUNIT-NEXT:    unreachable
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@arg_nonnull_violation1_2
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    unreachable
@@ -723,12 +723,12 @@ define void @arg_nonnull_violation1_2() {
 
 ; A case that depends on value simplification
 define void @arg_nonnull_violation2_1(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@arg_nonnull_violation2_1
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    unreachable
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@arg_nonnull_violation2_1
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    unreachable
@@ -740,12 +740,12 @@ define void @arg_nonnull_violation2_1(i1 %c) {
 }
 
 define void @arg_nonnull_violation2_2(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@arg_nonnull_violation2_2
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    unreachable
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@arg_nonnull_violation2_2
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    unreachable
@@ -758,7 +758,7 @@ define void @arg_nonnull_violation2_2(i1 %c) {
 
 ; Cases for single and multiple violation at a callsite
 define void @arg_nonnull_violation3_1(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@arg_nonnull_violation3_1
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    [[PTR:%.*]] = alloca i32, align 4
@@ -772,7 +772,7 @@ define void @arg_nonnull_violation3_1(i1 %c) {
 ; TUNIT:       ret:
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@arg_nonnull_violation3_1
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    [[PTR:%.*]] = alloca i32, align 4
@@ -805,7 +805,7 @@ ret:
 }
 
 define void @arg_nonnull_violation3_2(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@arg_nonnull_violation3_2
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    [[PTR:%.*]] = alloca i32, align 4
@@ -819,7 +819,7 @@ define void @arg_nonnull_violation3_2(i1 %c) {
 ; TUNIT:       ret:
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@arg_nonnull_violation3_2
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    [[PTR:%.*]] = alloca i32, align 4
@@ -854,7 +854,7 @@ ret:
 ; Tests for returned position
 
 define nonnull i32* @returned_nonnnull(i32 %c) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@returned_nonnnull
 ; CHECK-SAME: (i32 [[C:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    switch i32 [[C]], label [[ONDEFAULT:%.*]] [
@@ -881,7 +881,7 @@ ondefault:
 }
 
 define noundef i32* @returned_noundef(i32 %c) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@returned_noundef
 ; CHECK-SAME: (i32 [[C:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    switch i32 [[C]], label [[ONDEFAULT:%.*]] [
@@ -908,7 +908,7 @@ ondefault:
 }
 
 define nonnull noundef i32* @returned_nonnnull_noundef(i32 %c) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@returned_nonnnull_noundef
 ; CHECK-SAME: (i32 [[C:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    switch i32 [[C]], label [[ONDEFAULT:%.*]] [
@@ -935,7 +935,7 @@ ondefault:
 }
 
 define noundef i32 @returned_nonnnull_noundef_int() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@returned_nonnnull_noundef_int
 ; CHECK-SAME: () #[[ATTR0]] {
 ; CHECK-NEXT:    ret i32 0
@@ -965,7 +965,7 @@ define void @callsite_noundef_2() {
 }
 
 define i32 @argument_noundef1(i32 noundef %c) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@argument_noundef1
 ; CHECK-SAME: (i32 noundef returned [[C:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    ret i32 [[C]]
@@ -974,12 +974,12 @@ define i32 @argument_noundef1(i32 noundef %c) {
 }
 
 define i32 @violate_noundef_nonpointer() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@violate_noundef_nonpointer
 ; TUNIT-SAME: () #[[ATTR0]] {
 ; TUNIT-NEXT:    ret i32 undef
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@violate_noundef_nonpointer
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    unreachable
@@ -989,7 +989,7 @@ define i32 @violate_noundef_nonpointer() {
 }
 
 define i32* @argument_noundef2(i32* noundef %c) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@argument_noundef2
 ; CHECK-SAME: (i32* nofree noundef readnone returned "no-capture-maybe-returned" [[C:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    ret i32* [[C]]
@@ -998,12 +998,12 @@ define i32* @argument_noundef2(i32* noundef %c) {
 }
 
 define i32* @violate_noundef_pointer() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@violate_noundef_pointer
 ; TUNIT-SAME: () #[[ATTR0]] {
 ; TUNIT-NEXT:    ret i32* undef
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@violate_noundef_pointer
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    ret i32* undef
@@ -1013,7 +1013,7 @@ define i32* @violate_noundef_pointer() {
 }
 
 define internal noundef i32 @assumed_undef_is_ok(i1 %c, i32 %arg) {
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@assumed_undef_is_ok
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    br i1 [[C]], label [[REC:%.*]], label [[RET:%.*]]
@@ -1035,12 +1035,12 @@ ret:
 }
 
 define noundef i32 @assumed_undef_is_ok_caller(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@assumed_undef_is_ok_caller
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:    ret i32 0
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@assumed_undef_is_ok_caller
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    [[CALL:%.*]] = call i32 @assumed_undef_is_ok(i1 [[C]]) #[[ATTR10]]
@@ -1051,25 +1051,25 @@ define noundef i32 @assumed_undef_is_ok_caller(i1 %c) {
 }
 
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind null_pointer_is_valid readnone willreturn }
-; TUNIT: attributes #[[ATTR2]] = { nofree norecurse nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind null_pointer_is_valid willreturn writeonly }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind null_pointer_is_valid willreturn memory(none) }
+; TUNIT: attributes #[[ATTR2]] = { nofree norecurse nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind null_pointer_is_valid willreturn memory(write) }
 ; TUNIT: attributes #[[ATTR4]] = { nofree norecurse nounwind null_pointer_is_valid willreturn }
-; TUNIT: attributes #[[ATTR5]] = { nofree norecurse noreturn nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR6]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR7]] = { nofree nosync nounwind willreturn writeonly }
+; TUNIT: attributes #[[ATTR5]] = { nofree norecurse noreturn nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR6]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; TUNIT: attributes #[[ATTR7]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind null_pointer_is_valid readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR3]] = { nofree norecurse nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind null_pointer_is_valid willreturn writeonly }
-; CGSCC: attributes #[[ATTR5]] = { nofree nosync nounwind willreturn writeonly }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind null_pointer_is_valid willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR3]] = { nofree norecurse nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind null_pointer_is_valid willreturn memory(write) }
+; CGSCC: attributes #[[ATTR5]] = { nofree nosync nounwind willreturn memory(write) }
 ; CGSCC: attributes #[[ATTR6]] = { nofree norecurse nounwind null_pointer_is_valid willreturn }
 ; CGSCC: attributes #[[ATTR7]] = { nofree nounwind willreturn }
-; CGSCC: attributes #[[ATTR8]] = { nofree norecurse noreturn nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR9]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR10]] = { readnone willreturn }
-; CGSCC: attributes #[[ATTR11]] = { nounwind willreturn writeonly }
+; CGSCC: attributes #[[ATTR8]] = { nofree norecurse noreturn nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR9]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; CGSCC: attributes #[[ATTR10]] = { willreturn }
+; CGSCC: attributes #[[ATTR11]] = { nounwind willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/value-simplify-assume.ll b/llvm/test/Transforms/Attributor/value-simplify-assume.ll
index 260626f383437..a44a5f618d4c8 100644
--- a/llvm/test/Transforms/Attributor/value-simplify-assume.ll
+++ b/llvm/test/Transforms/Attributor/value-simplify-assume.ll
@@ -7,7 +7,7 @@ declare void @useI1p(i1*)
 declare void @unknown()
 
 define i1 @readI1p(i1* %p) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: define {{[^@]+}}@readI1p
 ; CHECK-SAME: (i1* nocapture nofree noundef nonnull readonly dereferenceable(1) [[P:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:    [[L:%.*]] = load i1, i1* [[P]], align 1
@@ -37,13 +37,13 @@ define i1 @keep_assume_1c_nr() norecurse {
 }
 
 define i1 @drop_assume_1c_nr() norecurse {
-; TUNIT: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@drop_assume_1c_nr
 ; TUNIT-SAME: () #[[ATTR3:[0-9]+]] {
 ; TUNIT-NEXT:    call void @llvm.assume(i1 noundef true) #[[ATTR4:[0-9]+]]
 ; TUNIT-NEXT:    ret i1 true
 ;
-; CGSCC: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@drop_assume_1c_nr
 ; CGSCC-SAME: () #[[ATTR3:[0-9]+]] {
 ; CGSCC-NEXT:    call void @llvm.assume(i1 noundef true) #[[ATTR5:[0-9]+]]
@@ -156,7 +156,7 @@ define i1 @keep_assume_1_nr(i1 %arg) norecurse {
 }
 
 define i1 @drop_assume_1_nr(i1 %arg) norecurse {
-; TUNIT: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@drop_assume_1_nr
 ; TUNIT-SAME: (i1 returned [[ARG:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -164,7 +164,7 @@ define i1 @drop_assume_1_nr(i1 %arg) norecurse {
 ; TUNIT-NEXT:    call void @llvm.assume(i1 noundef [[ARG]]) #[[ATTR4]]
 ; TUNIT-NEXT:    ret i1 [[ARG]]
 ;
-; CGSCC: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@drop_assume_1_nr
 ; CGSCC-SAME: (i1 returned [[ARG:%.*]]) #[[ATTR3]] {
 ; CGSCC-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -261,7 +261,7 @@ define i1 @keep_assume_4_nr(i1 %arg) norecurse {
 }
 
 define i1 @assume_1_nr(i1 %arg, i1 %cond) norecurse {
-; TUNIT: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@assume_1_nr
 ; TUNIT-SAME: (i1 returned [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -275,7 +275,7 @@ define i1 @assume_1_nr(i1 %arg, i1 %cond) norecurse {
 ; TUNIT:       m:
 ; TUNIT-NEXT:    ret i1 [[ARG]]
 ;
-; CGSCC: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@assume_1_nr
 ; CGSCC-SAME: (i1 returned [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; CGSCC-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -305,7 +305,7 @@ m:
 }
 
 define void @assume_1b_nr(i1 %arg, i1 %cond) norecurse {
-; TUNIT: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@assume_1b_nr
 ; TUNIT-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -320,7 +320,7 @@ define void @assume_1b_nr(i1 %arg, i1 %cond) norecurse {
 ; TUNIT:       m:
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@assume_1b_nr
 ; CGSCC-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; CGSCC-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -351,7 +351,7 @@ m:
 }
 
 define i1 @assume_2_nr(i1 %arg, i1 %cond) norecurse {
-; TUNIT: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@assume_2_nr
 ; TUNIT-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -368,7 +368,7 @@ define i1 @assume_2_nr(i1 %arg, i1 %cond) norecurse {
 ; TUNIT-NEXT:    call void @llvm.assume(i1 noundef [[L]]) #[[ATTR4]]
 ; TUNIT-NEXT:    ret i1 [[L]]
 ;
-; CGSCC: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@assume_2_nr
 ; CGSCC-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; CGSCC-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -401,7 +401,7 @@ m:
 }
 
 define void @assume_2b_nr(i1 %arg, i1 %cond) norecurse {
-; TUNIT: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@assume_2b_nr
 ; TUNIT-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -418,7 +418,7 @@ define void @assume_2b_nr(i1 %arg, i1 %cond) norecurse {
 ; TUNIT-NEXT:    call void @llvm.assume(i1 noundef [[L]]) #[[ATTR4]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@assume_2b_nr
 ; CGSCC-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; CGSCC-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -451,7 +451,7 @@ m:
 }
 
 define i1 @assume_3_nr(i1 %arg, i1 %cond) norecurse {
-; TUNIT: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@assume_3_nr
 ; TUNIT-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -469,7 +469,7 @@ define i1 @assume_3_nr(i1 %arg, i1 %cond) norecurse {
 ; TUNIT-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR5:[0-9]+]]
 ; TUNIT-NEXT:    ret i1 [[R]]
 ;
-; CGSCC: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@assume_3_nr
 ; CGSCC-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; CGSCC-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -484,7 +484,7 @@ define i1 @assume_3_nr(i1 %arg, i1 %cond) norecurse {
 ; CGSCC-NEXT:    store i1 false, i1* [[STACK]], align 1
 ; CGSCC-NEXT:    br label [[M]]
 ; CGSCC:       m:
-; CGSCC-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR6:[0-9]+]]
+; CGSCC-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR5]]
 ; CGSCC-NEXT:    ret i1 [[R]]
 ;
   %stack = alloca i1
@@ -504,7 +504,7 @@ m:
 }
 
 define i1 @assume_4_nr(i1 %arg, i1 %cond) norecurse {
-; TUNIT: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@assume_4_nr
 ; TUNIT-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -522,7 +522,7 @@ define i1 @assume_4_nr(i1 %arg, i1 %cond) norecurse {
 ; TUNIT-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR5]]
 ; TUNIT-NEXT:    ret i1 [[R]]
 ;
-; CGSCC: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@assume_4_nr
 ; CGSCC-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; CGSCC-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -537,7 +537,7 @@ define i1 @assume_4_nr(i1 %arg, i1 %cond) norecurse {
 ; CGSCC:       m:
 ; CGSCC-NEXT:    [[L:%.*]] = load i1, i1* [[STACK]], align 1
 ; CGSCC-NEXT:    call void @llvm.assume(i1 noundef [[L]]) #[[ATTR5]]
-; CGSCC-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR6]]
+; CGSCC-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR5]]
 ; CGSCC-NEXT:    ret i1 [[R]]
 ;
   %stack = alloca i1
@@ -557,7 +557,7 @@ m:
 }
 
 define i1 @assume_5_nr(i1 %arg, i1 %cond) norecurse {
-; TUNIT: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@assume_5_nr
 ; TUNIT-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -581,7 +581,7 @@ define i1 @assume_5_nr(i1 %arg, i1 %cond) norecurse {
 ; TUNIT-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR5]]
 ; TUNIT-NEXT:    ret i1 [[R]]
 ;
-; CGSCC: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@assume_5_nr
 ; CGSCC-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; CGSCC-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -602,7 +602,7 @@ define i1 @assume_5_nr(i1 %arg, i1 %cond) norecurse {
 ; CGSCC:       m:
 ; CGSCC-NEXT:    [[L4:%.*]] = load i1, i1* [[STACK]], align 1
 ; CGSCC-NEXT:    call void @llvm.assume(i1 noundef [[L4]]) #[[ATTR5]]
-; CGSCC-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR6]]
+; CGSCC-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR5]]
 ; CGSCC-NEXT:    ret i1 [[R]]
 ;
   %stack = alloca i1
@@ -628,7 +628,7 @@ m:
 }
 
 define i1 @assume_5c_nr(i1 %cond) norecurse {
-; TUNIT: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@assume_5c_nr
 ; TUNIT-SAME: (i1 [[COND:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -652,7 +652,7 @@ define i1 @assume_5c_nr(i1 %cond) norecurse {
 ; TUNIT-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR5]]
 ; TUNIT-NEXT:    ret i1 [[R]]
 ;
-; CGSCC: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@assume_5c_nr
 ; CGSCC-SAME: (i1 [[COND:%.*]]) #[[ATTR3]] {
 ; CGSCC-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -673,7 +673,7 @@ define i1 @assume_5c_nr(i1 %cond) norecurse {
 ; CGSCC:       m:
 ; CGSCC-NEXT:    [[L4:%.*]] = load i1, i1* [[STACK]], align 1
 ; CGSCC-NEXT:    call void @llvm.assume(i1 noundef [[L4]]) #[[ATTR5]]
-; CGSCC-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR6]]
+; CGSCC-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR5]]
 ; CGSCC-NEXT:    ret i1 [[R]]
 ;
   %stack = alloca i1
@@ -717,13 +717,13 @@ define i1 @keep_assume_1c() {
 }
 
 define i1 @drop_assume_1c() {
-; TUNIT: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@drop_assume_1c
 ; TUNIT-SAME: () #[[ATTR3]] {
 ; TUNIT-NEXT:    call void @llvm.assume(i1 noundef true) #[[ATTR4]]
 ; TUNIT-NEXT:    ret i1 true
 ;
-; CGSCC: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@drop_assume_1c
 ; CGSCC-SAME: () #[[ATTR3]] {
 ; CGSCC-NEXT:    call void @llvm.assume(i1 noundef true) #[[ATTR5]]
@@ -825,7 +825,7 @@ define i1 @keep_assume_1(i1 %arg) {
 }
 
 define i1 @drop_assume_1(i1 %arg) {
-; TUNIT: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@drop_assume_1
 ; TUNIT-SAME: (i1 returned [[ARG:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -833,7 +833,7 @@ define i1 @drop_assume_1(i1 %arg) {
 ; TUNIT-NEXT:    call void @llvm.assume(i1 noundef [[ARG]]) #[[ATTR4]]
 ; TUNIT-NEXT:    ret i1 [[ARG]]
 ;
-; CGSCC: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@drop_assume_1
 ; CGSCC-SAME: (i1 returned [[ARG:%.*]]) #[[ATTR3]] {
 ; CGSCC-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -925,7 +925,7 @@ define i1 @keep_assume_4(i1 %arg) {
 }
 
 define i1 @assume_1(i1 %arg, i1 %cond) {
-; TUNIT: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@assume_1
 ; TUNIT-SAME: (i1 returned [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -939,7 +939,7 @@ define i1 @assume_1(i1 %arg, i1 %cond) {
 ; TUNIT:       m:
 ; TUNIT-NEXT:    ret i1 [[ARG]]
 ;
-; CGSCC: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@assume_1
 ; CGSCC-SAME: (i1 returned [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; CGSCC-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -969,7 +969,7 @@ m:
 }
 
 define void @assume_1b(i1 %arg, i1 %cond) {
-; TUNIT: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@assume_1b
 ; TUNIT-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -984,7 +984,7 @@ define void @assume_1b(i1 %arg, i1 %cond) {
 ; TUNIT:       m:
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@assume_1b
 ; CGSCC-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; CGSCC-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -1015,7 +1015,7 @@ m:
 }
 
 define i1 @assume_2(i1 %arg, i1 %cond) {
-; TUNIT: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@assume_2
 ; TUNIT-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -1032,7 +1032,7 @@ define i1 @assume_2(i1 %arg, i1 %cond) {
 ; TUNIT-NEXT:    call void @llvm.assume(i1 noundef [[L]]) #[[ATTR4]]
 ; TUNIT-NEXT:    ret i1 [[L]]
 ;
-; CGSCC: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@assume_2
 ; CGSCC-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; CGSCC-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -1065,7 +1065,7 @@ m:
 }
 
 define void @assume_2b(i1 %arg, i1 %cond) {
-; TUNIT: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@assume_2b
 ; TUNIT-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -1082,7 +1082,7 @@ define void @assume_2b(i1 %arg, i1 %cond) {
 ; TUNIT-NEXT:    call void @llvm.assume(i1 noundef [[L]]) #[[ATTR4]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@assume_2b
 ; CGSCC-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; CGSCC-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -1115,7 +1115,7 @@ m:
 }
 
 define i1 @assume_3(i1 %arg, i1 %cond) {
-; TUNIT: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@assume_3
 ; TUNIT-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -1133,7 +1133,7 @@ define i1 @assume_3(i1 %arg, i1 %cond) {
 ; TUNIT-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR5]]
 ; TUNIT-NEXT:    ret i1 [[R]]
 ;
-; CGSCC: Function Attrs: inaccessiblememonly nofree nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@assume_3
 ; CGSCC-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR4:[0-9]+]] {
 ; CGSCC-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -1148,7 +1148,7 @@ define i1 @assume_3(i1 %arg, i1 %cond) {
 ; CGSCC-NEXT:    store i1 false, i1* [[STACK]], align 1
 ; CGSCC-NEXT:    br label [[M]]
 ; CGSCC:       m:
-; CGSCC-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR6]]
+; CGSCC-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR5]]
 ; CGSCC-NEXT:    ret i1 [[R]]
 ;
   %stack = alloca i1
@@ -1168,7 +1168,7 @@ m:
 }
 
 define i1 @assume_4(i1 %arg, i1 %cond) {
-; TUNIT: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@assume_4
 ; TUNIT-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -1186,7 +1186,7 @@ define i1 @assume_4(i1 %arg, i1 %cond) {
 ; TUNIT-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR5]]
 ; TUNIT-NEXT:    ret i1 [[R]]
 ;
-; CGSCC: Function Attrs: inaccessiblememonly nofree nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@assume_4
 ; CGSCC-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR4]] {
 ; CGSCC-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -1201,7 +1201,7 @@ define i1 @assume_4(i1 %arg, i1 %cond) {
 ; CGSCC:       m:
 ; CGSCC-NEXT:    [[L:%.*]] = load i1, i1* [[STACK]], align 1
 ; CGSCC-NEXT:    call void @llvm.assume(i1 noundef [[L]]) #[[ATTR5]]
-; CGSCC-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR6]]
+; CGSCC-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR5]]
 ; CGSCC-NEXT:    ret i1 [[R]]
 ;
   %stack = alloca i1
@@ -1221,7 +1221,7 @@ m:
 }
 
 define i1 @assume_5(i1 %arg, i1 %cond) {
-; TUNIT: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@assume_5
 ; TUNIT-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -1245,7 +1245,7 @@ define i1 @assume_5(i1 %arg, i1 %cond) {
 ; TUNIT-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR5]]
 ; TUNIT-NEXT:    ret i1 [[R]]
 ;
-; CGSCC: Function Attrs: inaccessiblememonly nofree nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@assume_5
 ; CGSCC-SAME: (i1 [[ARG:%.*]], i1 [[COND:%.*]]) #[[ATTR4]] {
 ; CGSCC-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -1266,7 +1266,7 @@ define i1 @assume_5(i1 %arg, i1 %cond) {
 ; CGSCC:       m:
 ; CGSCC-NEXT:    [[L4:%.*]] = load i1, i1* [[STACK]], align 1
 ; CGSCC-NEXT:    call void @llvm.assume(i1 noundef [[L4]]) #[[ATTR5]]
-; CGSCC-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR6]]
+; CGSCC-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR5]]
 ; CGSCC-NEXT:    ret i1 [[R]]
 ;
   %stack = alloca i1
@@ -1292,7 +1292,7 @@ m:
 }
 
 define i1 @assume_5c(i1 %cond) {
-; TUNIT: Function Attrs: inaccessiblememonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@assume_5c
 ; TUNIT-SAME: (i1 [[COND:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -1316,7 +1316,7 @@ define i1 @assume_5c(i1 %cond) {
 ; TUNIT-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR5]]
 ; TUNIT-NEXT:    ret i1 [[R]]
 ;
-; CGSCC: Function Attrs: inaccessiblememonly nofree nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@assume_5c
 ; CGSCC-SAME: (i1 [[COND:%.*]]) #[[ATTR4]] {
 ; CGSCC-NEXT:    [[STACK:%.*]] = alloca i1, align 1
@@ -1337,7 +1337,7 @@ define i1 @assume_5c(i1 %cond) {
 ; CGSCC:       m:
 ; CGSCC-NEXT:    [[L4:%.*]] = load i1, i1* [[STACK]], align 1
 ; CGSCC-NEXT:    call void @llvm.assume(i1 noundef [[L4]]) #[[ATTR5]]
-; CGSCC-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR6]]
+; CGSCC-NEXT:    [[R:%.*]] = call i1 @readI1p(i1* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[STACK]]) #[[ATTR5]]
 ; CGSCC-NEXT:    ret i1 [[R]]
 ;
   %stack = alloca i1
@@ -1363,18 +1363,17 @@ m:
 }
 
 ;.
-; TUNIT: attributes #[[ATTR0:[0-9]+]] = { inaccessiblememonly nocallback nofree nosync nounwind willreturn }
-; TUNIT: attributes #[[ATTR1]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
+; TUNIT: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite) }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
 ; TUNIT: attributes #[[ATTR2]] = { norecurse }
-; TUNIT: attributes #[[ATTR3]] = { inaccessiblememonly nofree norecurse nosync nounwind willreturn }
+; TUNIT: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite) }
 ; TUNIT: attributes #[[ATTR4]] = { willreturn }
-; TUNIT: attributes #[[ATTR5]] = { nofree nosync nounwind readonly willreturn }
+; TUNIT: attributes #[[ATTR5]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0:[0-9]+]] = { inaccessiblememonly nocallback nofree nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR1]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
+; CGSCC: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite) }
+; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
 ; CGSCC: attributes #[[ATTR2]] = { norecurse }
-; CGSCC: attributes #[[ATTR3]] = { inaccessiblememonly nofree norecurse nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR4]] = { inaccessiblememonly nofree nosync nounwind willreturn }
+; CGSCC: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind willreturn memory(inaccessiblemem: readwrite) }
+; CGSCC: attributes #[[ATTR4]] = { nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite) }
 ; CGSCC: attributes #[[ATTR5]] = { willreturn }
-; CGSCC: attributes #[[ATTR6]] = { readonly willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/value-simplify-dbg.ll b/llvm/test/Transforms/Attributor/value-simplify-dbg.ll
index 10a84d6458c67..f1e887d7fe83e 100644
--- a/llvm/test/Transforms/Attributor/value-simplify-dbg.ll
+++ b/llvm/test/Transforms/Attributor/value-simplify-dbg.ll
@@ -24,7 +24,7 @@ entry:
 declare void @use(i32 noundef)
 
 define void @src() norecurse !dbg !22 {
-; CHECK: Function Attrs: norecurse nosync writeonly
+; CHECK: Function Attrs: norecurse nosync memory(write)
 ; CHECK-LABEL: define {{[^@]+}}@src
 ; CHECK-SAME: () #[[ATTR0:[0-9]+]] !dbg [[DBG22:![0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -73,8 +73,8 @@ declare i32 @speculatable() speculatable readnone
 !24 = !DILocation(line: 10, column: 7, scope: !22)
 !25 = !DILocation(line: 11, column: 1, scope: !22)
 ;.
-; CHECK: attributes #[[ATTR0]] = { norecurse nosync writeonly }
-; CHECK: attributes #[[ATTR1:[0-9]+]] = { readnone speculatable }
+; CHECK: attributes #[[ATTR0]] = { norecurse nosync memory(write) }
+; CHECK: attributes #[[ATTR1:[0-9]+]] = { speculatable memory(none) }
 ;.
 ; CHECK: [[DBG0]] = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
 ; CHECK: [[META1:![0-9]+]] = distinct !DIGlobalVariable(name: "G", scope: !2, file: !5, line: 1, type: !6, isLocal: true, isDefinition: true)

diff  --git a/llvm/test/Transforms/Attributor/value-simplify-gpu.ll b/llvm/test/Transforms/Attributor/value-simplify-gpu.ll
index a2e4c3114e317..7ae99e48ff8e6 100644
--- a/llvm/test/Transforms/Attributor/value-simplify-gpu.ll
+++ b/llvm/test/Transforms/Attributor/value-simplify-gpu.ll
@@ -50,7 +50,7 @@ define internal void @level1Kernel(i32 %C) {
 ; TUNIT-NEXT:    call void @level2Kernelb() #[[ATTR3]]
 ; TUNIT-NEXT:    br label [[IF_END]]
 ; TUNIT:       if.end:
-; TUNIT-NEXT:    call void @level2Kernelall_late() #[[ATTR5:[0-9]+]]
+; TUNIT-NEXT:    call void @level2Kernelall_late() #[[ATTR3]]
 ; TUNIT-NEXT:    ret void
 ;
 ; CGSCC: Function Attrs: norecurse nosync nounwind
@@ -67,7 +67,7 @@ define internal void @level1Kernel(i32 %C) {
 ; CGSCC-NEXT:    call void @level2Kernelb() #[[ATTR4]]
 ; CGSCC-NEXT:    br label [[IF_END]]
 ; CGSCC:       if.end:
-; CGSCC-NEXT:    call void @level2Kernelall_late() #[[ATTR6:[0-9]+]]
+; CGSCC-NEXT:    call void @level2Kernelall_late() #[[ATTR4]]
 ; CGSCC-NEXT:    ret void
 ;
 entry:
@@ -89,7 +89,7 @@ if.end:                                           ; preds = %if.else, %if.then
 }
 
 define internal void @level2Kernelall_early() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CHECK-LABEL: define {{[^@]+}}@level2Kernelall_early
 ; CHECK-SAME: () #[[ATTR2:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -110,7 +110,7 @@ define internal void @level2Kernela() {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    [[TMP0:%.*]] = load i32, i32* addrspacecast (i32 addrspace(3)* @ReachableKernel to i32*), align 4
 ; TUNIT-NEXT:    [[TMP1:%.*]] = load i32, i32* @ReachableKernelAS0, align 4
-; TUNIT-NEXT:    call void @use(i32 noundef [[TMP0]], i32 noundef [[TMP1]], i32 noundef 42) #[[ATTR6:[0-9]+]]
+; TUNIT-NEXT:    call void @use(i32 noundef [[TMP0]], i32 noundef [[TMP1]], i32 noundef 42) #[[ATTR5:[0-9]+]]
 ; TUNIT-NEXT:    ret void
 ;
 ; CGSCC: Function Attrs: nosync nounwind
@@ -138,7 +138,7 @@ define internal void @level2Kernelb() {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    [[TMP0:%.*]] = load i32, i32* addrspacecast (i32 addrspace(3)* @ReachableKernel to i32*), align 4
 ; TUNIT-NEXT:    [[TMP1:%.*]] = load i32, i32* @ReachableKernelAS0, align 4
-; TUNIT-NEXT:    call void @use(i32 noundef [[TMP0]], i32 noundef [[TMP1]], i32 noundef 42) #[[ATTR6]]
+; TUNIT-NEXT:    call void @use(i32 noundef [[TMP0]], i32 noundef [[TMP1]], i32 noundef 42) #[[ATTR5]]
 ; TUNIT-NEXT:    ret void
 ;
 ; CGSCC: Function Attrs: nosync nounwind
@@ -160,13 +160,13 @@ entry:
 }
 
 define internal void @level2Kernelall_late() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@level2Kernelall_late
 ; TUNIT-SAME: () #[[ATTR2]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@level2Kernelall_late
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:  entry:
@@ -217,7 +217,7 @@ define internal void @level1(i32 %C) {
 ; TUNIT-NEXT:    call void @level2b() #[[ATTR3]]
 ; TUNIT-NEXT:    br label [[IF_END]]
 ; TUNIT:       if.end:
-; TUNIT-NEXT:    call void @level2all_late(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[LOCAL]]) #[[ATTR5]]
+; TUNIT-NEXT:    call void @level2all_late(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[LOCAL]]) #[[ATTR3]]
 ; TUNIT-NEXT:    ret void
 ;
 ; CGSCC: Function Attrs: norecurse nosync nounwind
@@ -235,7 +235,7 @@ define internal void @level1(i32 %C) {
 ; CGSCC-NEXT:    call void @level2b(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[LOCAL]]) #[[ATTR4]]
 ; CGSCC-NEXT:    br label [[IF_END]]
 ; CGSCC:       if.end:
-; CGSCC-NEXT:    call void @level2all_late(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[LOCAL]]) #[[ATTR6]]
+; CGSCC-NEXT:    call void @level2all_late(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[LOCAL]]) #[[ATTR4]]
 ; CGSCC-NEXT:    ret void
 ;
 entry:
@@ -258,14 +258,14 @@ if.end:                                           ; preds = %if.else, %if.then
 }
 
 define internal void @level2all_early(i32* %addr) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@level2all_early
 ; TUNIT-SAME: (i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[ADDR:%.*]]) #[[ATTR2]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    store i32 1, i32* addrspacecast (i32 addrspace(3)* @ReachableNonKernel to i32*), align 4
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@level2all_early
 ; CGSCC-SAME: (i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[ADDR:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:  entry:
@@ -286,7 +286,7 @@ define internal void @level2a(i32* %addr) {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    [[TMP0:%.*]] = load i32, i32* addrspacecast (i32 addrspace(3)* @ReachableNonKernel to i32*), align 4
 ; TUNIT-NEXT:    [[TMP1:%.*]] = load i32, i32* addrspacecast (i32 addrspace(3)* @UnreachableNonKernel to i32*), align 4
-; TUNIT-NEXT:    call void @use(i32 noundef [[TMP0]], i32 noundef [[TMP1]], i32 17) #[[ATTR6]]
+; TUNIT-NEXT:    call void @use(i32 noundef [[TMP0]], i32 noundef [[TMP1]], i32 17) #[[ATTR5]]
 ; TUNIT-NEXT:    ret void
 ;
 ; CGSCC: Function Attrs: nosync nounwind
@@ -314,7 +314,7 @@ define internal void @level2b(i32* %addr) {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    [[TMP0:%.*]] = load i32, i32* addrspacecast (i32 addrspace(3)* @ReachableNonKernel to i32*), align 4
 ; TUNIT-NEXT:    [[TMP1:%.*]] = load i32, i32* addrspacecast (i32 addrspace(3)* @UnreachableNonKernel to i32*), align 4
-; TUNIT-NEXT:    call void @use(i32 noundef [[TMP0]], i32 noundef [[TMP1]], i32 17) #[[ATTR6]]
+; TUNIT-NEXT:    call void @use(i32 noundef [[TMP0]], i32 noundef [[TMP1]], i32 17) #[[ATTR5]]
 ; TUNIT-NEXT:    ret void
 ;
 ; CGSCC: Function Attrs: nosync nounwind
@@ -336,14 +336,14 @@ entry:
 }
 
 define internal void @level2all_late(i32* %addr) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@level2all_late
 ; TUNIT-SAME: (i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[ADDR:%.*]]) #[[ATTR2]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    store i32 1, i32* addrspacecast (i32 addrspace(3)* @UnreachableNonKernel to i32*), align 4
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@level2all_late
 ; CGSCC-SAME: (i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[ADDR:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:  entry:
@@ -362,17 +362,15 @@ declare dso_local void @use(i32, i32, i32) nosync norecurse nounwind
 ;.
 ; TUNIT: attributes #[[ATTR0]] = { norecurse nosync nounwind "kernel" }
 ; TUNIT: attributes #[[ATTR1]] = { norecurse nosync nounwind }
-; TUNIT: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn writeonly }
+; TUNIT: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn memory(write) }
 ; TUNIT: attributes #[[ATTR3]] = { nosync nounwind }
-; TUNIT: attributes #[[ATTR4]] = { nofree nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR5]] = { nosync nounwind writeonly }
-; TUNIT: attributes #[[ATTR6]] = { nounwind }
+; TUNIT: attributes #[[ATTR4]] = { nofree nosync nounwind willreturn }
+; TUNIT: attributes #[[ATTR5]] = { nounwind }
 ;.
 ; CGSCC: attributes #[[ATTR0]] = { norecurse nosync nounwind "kernel" }
 ; CGSCC: attributes #[[ATTR1]] = { norecurse nosync nounwind }
-; CGSCC: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn writeonly }
+; CGSCC: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn memory(write) }
 ; CGSCC: attributes #[[ATTR3]] = { nosync nounwind }
 ; CGSCC: attributes #[[ATTR4]] = { nounwind }
-; CGSCC: attributes #[[ATTR5]] = { nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR6]] = { nounwind writeonly }
+; CGSCC: attributes #[[ATTR5]] = { nounwind willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/value-simplify-instances.ll b/llvm/test/Transforms/Attributor/value-simplify-instances.ll
index 9de4fd59ec581..270673ba23c79 100644
--- a/llvm/test/Transforms/Attributor/value-simplify-instances.ll
+++ b/llvm/test/Transforms/Attributor/value-simplify-instances.ll
@@ -13,7 +13,7 @@ declare i1* @geti1Ptr()
 ; CHECK: @[[G3:[a-zA-Z0-9_$"\\.-]+]] = private global i1 undef
 ;.
 define internal i1 @recursive_inst_comparator(i1* %a, i1* %b) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@recursive_inst_comparator
 ; CHECK-SAME: (i1* noalias nofree readnone [[A:%.*]], i1* noalias nofree readnone [[B:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i1* [[A]], [[B]]
@@ -103,17 +103,29 @@ define i1 @recursive_inst_compare_caller(i1 %c) {
 
 ; Make sure we do *not* return true.
 define internal i1 @recursive_alloca_compare(i1 %c, i1* %p) {
-; CHECK: Function Attrs: nofree nosync nounwind readnone
-; CHECK-LABEL: define {{[^@]+}}@recursive_alloca_compare
-; CHECK-SAME: (i1 [[C:%.*]], i1* noalias nofree nonnull readnone [[P:%.*]]) #[[ATTR1:[0-9]+]] {
-; CHECK-NEXT:    [[A:%.*]] = alloca i1, align 1
-; CHECK-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
-; CHECK:       t:
-; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i1* [[A]], [[P]]
-; CHECK-NEXT:    ret i1 [[CMP]]
-; CHECK:       f:
-; CHECK-NEXT:    [[CALL:%.*]] = call i1 @recursive_alloca_compare(i1 noundef true, i1* noalias nofree noundef nonnull readnone dereferenceable(1) [[A]]) #[[ATTR1]]
-; CHECK-NEXT:    ret i1 [[CALL]]
+; TUNIT: Function Attrs: nofree nosync nounwind memory(none)
+; TUNIT-LABEL: define {{[^@]+}}@recursive_alloca_compare
+; TUNIT-SAME: (i1 [[C:%.*]], i1* noalias nofree nonnull readnone [[P:%.*]]) #[[ATTR1:[0-9]+]] {
+; TUNIT-NEXT:    [[A:%.*]] = alloca i1, align 1
+; TUNIT-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
+; TUNIT:       t:
+; TUNIT-NEXT:    [[CMP:%.*]] = icmp eq i1* [[A]], [[P]]
+; TUNIT-NEXT:    ret i1 [[CMP]]
+; TUNIT:       f:
+; TUNIT-NEXT:    [[CALL:%.*]] = call i1 @recursive_alloca_compare(i1 noundef true, i1* noalias nofree noundef nonnull readnone dereferenceable(1) [[A]]) #[[ATTR4:[0-9]+]]
+; TUNIT-NEXT:    ret i1 [[CALL]]
+;
+; CGSCC: Function Attrs: nofree nosync nounwind memory(none)
+; CGSCC-LABEL: define {{[^@]+}}@recursive_alloca_compare
+; CGSCC-SAME: (i1 [[C:%.*]], i1* noalias nofree nonnull readnone [[P:%.*]]) #[[ATTR1:[0-9]+]] {
+; CGSCC-NEXT:    [[A:%.*]] = alloca i1, align 1
+; CGSCC-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
+; CGSCC:       t:
+; CGSCC-NEXT:    [[CMP:%.*]] = icmp eq i1* [[A]], [[P]]
+; CGSCC-NEXT:    ret i1 [[CMP]]
+; CGSCC:       f:
+; CGSCC-NEXT:    [[CALL:%.*]] = call i1 @recursive_alloca_compare(i1 noundef true, i1* noalias nofree noundef nonnull readnone dereferenceable(1) [[A]]) #[[ATTR3:[0-9]+]]
+; CGSCC-NEXT:    ret i1 [[CALL]]
 ;
   %a = alloca i1
   br i1 %c, label %t, label %f
@@ -127,13 +139,13 @@ f:
 
 ; FIXME: This should *not* return true.
 define i1 @recursive_alloca_compare_caller(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@recursive_alloca_compare_caller
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR2:[0-9]+]] {
-; TUNIT-NEXT:    [[CALL:%.*]] = call i1 @recursive_alloca_compare(i1 [[C]], i1* undef) #[[ATTR1]]
+; TUNIT-NEXT:    [[CALL:%.*]] = call i1 @recursive_alloca_compare(i1 [[C]], i1* undef) #[[ATTR4]]
 ; TUNIT-NEXT:    ret i1 [[CALL]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone
+; CGSCC: Function Attrs: nofree nosync nounwind memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@recursive_alloca_compare_caller
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:    [[CALL:%.*]] = call i1 @recursive_alloca_compare(i1 [[C]], i1* undef) #[[ATTR4:[0-9]+]]
@@ -145,7 +157,7 @@ define i1 @recursive_alloca_compare_caller(i1 %c) {
 
 ; Make sure we do *not* simplify this to return 0 or 1, return 42 is ok though.
 define internal i8 @recursive_alloca_load_return(i1 %c, i8* %p, i8 %v) {
-; TUNIT: Function Attrs: argmemonly nofree nosync nounwind
+; TUNIT: Function Attrs: nofree nosync nounwind memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@recursive_alloca_load_return
 ; TUNIT-SAME: (i1 [[C:%.*]], i8* nocapture nofree nonnull readonly [[P:%.*]], i8 noundef [[V:%.*]]) #[[ATTR3:[0-9]+]] {
 ; TUNIT-NEXT:    [[A:%.*]] = alloca i8, align 1
@@ -156,10 +168,10 @@ define internal i8 @recursive_alloca_load_return(i1 %c, i8* %p, i8 %v) {
 ; TUNIT-NEXT:    [[L:%.*]] = load i8, i8* [[P]], align 1
 ; TUNIT-NEXT:    ret i8 [[L]]
 ; TUNIT:       f:
-; TUNIT-NEXT:    [[CALL:%.*]] = call i8 @recursive_alloca_load_return(i1 noundef true, i8* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[A]], i8 noundef 1) #[[ATTR4:[0-9]+]]
+; TUNIT-NEXT:    [[CALL:%.*]] = call i8 @recursive_alloca_load_return(i1 noundef true, i8* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[A]], i8 noundef 1) #[[ATTR4]]
 ; TUNIT-NEXT:    ret i8 [[CALL]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind
+; CGSCC: Function Attrs: nofree nosync nounwind memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@recursive_alloca_load_return
 ; CGSCC-SAME: (i1 [[C:%.*]], i8* nocapture nofree nonnull readonly [[P:%.*]], i8 noundef [[V:%.*]]) #[[ATTR2:[0-9]+]] {
 ; CGSCC-NEXT:    [[A:%.*]] = alloca i8, align 1
@@ -170,7 +182,7 @@ define internal i8 @recursive_alloca_load_return(i1 %c, i8* %p, i8 %v) {
 ; CGSCC-NEXT:    [[L:%.*]] = load i8, i8* [[P]], align 1
 ; CGSCC-NEXT:    ret i8 [[L]]
 ; CGSCC:       f:
-; CGSCC-NEXT:    [[CALL:%.*]] = call i8 @recursive_alloca_load_return(i1 noundef true, i8* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[A]], i8 noundef 1) #[[ATTR3:[0-9]+]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call i8 @recursive_alloca_load_return(i1 noundef true, i8* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[A]], i8 noundef 1) #[[ATTR3]]
 ; CGSCC-NEXT:    ret i8 [[CALL]]
 ;
   %a = alloca i8
@@ -186,16 +198,16 @@ f:
 }
 
 define i8 @recursive_alloca_load_return_caller(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@recursive_alloca_load_return_caller
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
 ; TUNIT-NEXT:    [[CALL:%.*]] = call i8 @recursive_alloca_load_return(i1 [[C]], i8* undef, i8 noundef 42) #[[ATTR4]]
 ; TUNIT-NEXT:    ret i8 [[CALL]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone
+; CGSCC: Function Attrs: nofree nosync nounwind memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@recursive_alloca_load_return_caller
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
-; CGSCC-NEXT:    [[CALL:%.*]] = call i8 @recursive_alloca_load_return(i1 [[C]], i8* undef, i8 noundef 42) #[[ATTR5:[0-9]+]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call i8 @recursive_alloca_load_return(i1 [[C]], i8* undef, i8 noundef 42) #[[ATTR4]]
 ; CGSCC-NEXT:    ret i8 [[CALL]]
 ;
   %call = call i8 @recursive_alloca_load_return(i1 %c, i8* undef, i8 42)
@@ -259,7 +271,7 @@ define i1 @recursive_alloca_compare_caller_global1(i1 %c) {
 ; CGSCC: Function Attrs: nofree nosync nounwind
 ; CGSCC-LABEL: define {{[^@]+}}@recursive_alloca_compare_caller_global1
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR3]] {
-; CGSCC-NEXT:    [[CALL:%.*]] = call i1 @recursive_alloca_compare_global1(i1 [[C]]) #[[ATTR5]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call i1 @recursive_alloca_compare_global1(i1 [[C]]) #[[ATTR4]]
 ; CGSCC-NEXT:    ret i1 [[CALL]]
 ;
   %call = call i1 @recursive_alloca_compare_global1(i1 %c)
@@ -318,7 +330,7 @@ define i1 @recursive_alloca_compare_caller_global2(i1 %c) {
 ; CGSCC: Function Attrs: nofree nosync nounwind
 ; CGSCC-LABEL: define {{[^@]+}}@recursive_alloca_compare_caller_global2
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR3]] {
-; CGSCC-NEXT:    [[CALL:%.*]] = call i1 @recursive_alloca_compare_global2(i1 [[C]]) #[[ATTR5]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call i1 @recursive_alloca_compare_global2(i1 [[C]]) #[[ATTR4]]
 ; CGSCC-NEXT:    ret i1 [[CALL]]
 ;
   %call = call i1 @recursive_alloca_compare_global2(i1 %c)
@@ -374,25 +386,24 @@ define i1 @recursive_inst_compare_caller_global3(i1 %c) {
 ; CGSCC: Function Attrs: nofree nosync nounwind
 ; CGSCC-LABEL: define {{[^@]+}}@recursive_inst_compare_caller_global3
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR3]] {
-; CGSCC-NEXT:    [[CALL:%.*]] = call i1 @recursive_inst_compare_global3(i1 [[C]]) #[[ATTR5]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call i1 @recursive_inst_compare_global3(i1 [[C]]) #[[ATTR4]]
 ; CGSCC-NEXT:    ret i1 [[CALL]]
 ;
   %call = call i1 @recursive_inst_compare_global3(i1 %c)
   ret i1 %call
 }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR1]] = { nofree nosync nounwind readnone }
-; TUNIT: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind readnone }
-; TUNIT: attributes #[[ATTR3]] = { argmemonly nofree nosync nounwind }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR1]] = { nofree nosync nounwind memory(none) }
+; TUNIT: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind memory(none) }
+; TUNIT: attributes #[[ATTR3]] = { nofree nosync nounwind memory(argmem: readwrite) }
 ; TUNIT: attributes #[[ATTR4]] = { nofree nosync nounwind }
 ; TUNIT: attributes #[[ATTR5]] = { nofree norecurse nosync nounwind }
-; TUNIT: attributes #[[ATTR6]] = { nounwind readnone }
+; TUNIT: attributes #[[ATTR6]] = { nounwind }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind readnone }
-; CGSCC: attributes #[[ATTR2]] = { argmemonly nofree nosync nounwind }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind memory(argmem: readwrite) }
 ; CGSCC: attributes #[[ATTR3]] = { nofree nosync nounwind }
-; CGSCC: attributes #[[ATTR4]] = { nounwind readnone }
-; CGSCC: attributes #[[ATTR5]] = { nounwind }
+; CGSCC: attributes #[[ATTR4]] = { nounwind }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/value-simplify-local-remote.ll b/llvm/test/Transforms/Attributor/value-simplify-local-remote.ll
index 51e7729ba54ea..dd4e2f68bb36f 100644
--- a/llvm/test/Transforms/Attributor/value-simplify-local-remote.ll
+++ b/llvm/test/Transforms/Attributor/value-simplify-local-remote.ll
@@ -13,7 +13,7 @@ target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16
 %struct2 = type <{ ptr, i64, i64, i32, [4 x i8] }>
 
 define i64 @t1(ptr %first, ptr %first.addr, ptr %0) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@t1
 ; TUNIT-SAME: (ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[FIRST:%.*]], ptr nocapture nofree readnone [[FIRST_ADDR:%.*]], ptr nocapture nofree readnone [[TMP0:%.*]]) #[[ATTR0:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
@@ -24,7 +24,7 @@ define i64 @t1(ptr %first, ptr %first.addr, ptr %0) {
 ; TUNIT-NEXT:    [[CALL:%.*]] = call ptr @foo.4(ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[FIRST]]) #[[ATTR3:[0-9]+]]
 ; TUNIT-NEXT:    ret i64 0
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@t1
 ; CGSCC-SAME: (ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[FIRST:%.*]], ptr nocapture nofree readnone [[FIRST_ADDR:%.*]], ptr nocapture nofree readnone [[TMP0:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -49,7 +49,7 @@ if.end:                                           ; preds = %entry
 }
 
 define internal ptr @foo.4(ptr %__first) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@foo.4
 ; TUNIT-SAME: (ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[__FIRST:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:  entry:
@@ -57,7 +57,7 @@ define internal ptr @foo.4(ptr %__first) {
 ; TUNIT-NEXT:    store ptr [[__FIRST]], ptr [[__FIRST]], align 8
 ; TUNIT-NEXT:    ret ptr undef
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@foo.4
 ; CGSCC-SAME: (ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[__FIRST:%.*]]) #[[ATTR0]] {
 ; CGSCC-NEXT:  entry:
@@ -75,7 +75,7 @@ entry:
 }
 
 define internal ptr @bar(ptr %QQfirst) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@bar
 ; CGSCC-SAME: (ptr noalias nofree noundef nonnull readnone returned align 8 dereferenceable(8) "no-capture-maybe-returned" [[QQFIRST:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -101,7 +101,7 @@ while.end:                                        ; preds = %while.cond
 }
 
 define ptr @t2(ptr %this, ptr %this.addr, ptr %this1) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@t2
 ; TUNIT-SAME: (ptr nofree noundef nonnull align 8 dereferenceable(8) [[THIS:%.*]], ptr nocapture nofree readnone [[THIS_ADDR:%.*]], ptr nocapture nofree readnone [[THIS1:%.*]]) #[[ATTR1:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
@@ -110,12 +110,12 @@ define ptr @t2(ptr %this, ptr %this.addr, ptr %this1) {
 ; TUNIT-NEXT:    [[TEST_RET:%.*]] = extractvalue [[S]] [[CALL]], 0
 ; TUNIT-NEXT:    ret ptr [[TEST_RET]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@t2
 ; CGSCC-SAME: (ptr nofree noundef nonnull align 8 dereferenceable(8) [[THIS:%.*]], ptr nocapture nofree readnone [[THIS_ADDR:%.*]], ptr nocapture nofree readnone [[THIS1:%.*]]) #[[ATTR2:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
 ; CGSCC-NEXT:    store ptr [[THIS]], ptr [[THIS]], align 8
-; CGSCC-NEXT:    [[CALL:%.*]] = call [[S:%.*]] @foo.1(ptr nofree noundef nonnull align 8 dereferenceable(8) [[THIS]]) #[[ATTR8:[0-9]+]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call [[S:%.*]] @foo.1(ptr nofree noundef nonnull align 8 dereferenceable(8) [[THIS]]) #[[ATTR6]]
 ; CGSCC-NEXT:    [[TEST_RET:%.*]] = extractvalue [[S]] [[CALL]], 0
 ; CGSCC-NEXT:    ret ptr [[TEST_RET]]
 ;
@@ -128,23 +128,23 @@ entry:
 }
 
 define internal %S @foo.1(ptr %foo.this) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@foo.1
 ; TUNIT-SAME: (ptr nofree noundef nonnull align 8 dereferenceable(8) [[FOO_THIS:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    [[RETVAL:%.*]] = alloca [[S:%.*]], i32 0, align 8
 ; TUNIT-NEXT:    store ptr [[FOO_THIS]], ptr [[FOO_THIS]], align 8
-; TUNIT-NEXT:    call void @bar.2(ptr noalias nocapture nofree noundef nonnull writeonly align 8 [[RETVAL]], ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[FOO_THIS]]) #[[ATTR5:[0-9]+]]
+; TUNIT-NEXT:    call void @bar.2(ptr noalias nocapture nofree noundef nonnull writeonly align 8 [[RETVAL]], ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[FOO_THIS]]) #[[ATTR4]]
 ; TUNIT-NEXT:    [[FOO_RET:%.*]] = load [[S]], ptr [[RETVAL]], align 8
 ; TUNIT-NEXT:    ret [[S]] [[FOO_RET]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@foo.1
 ; CGSCC-SAME: (ptr nofree noundef nonnull align 8 dereferenceable(8) [[FOO_THIS:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:  entry:
 ; CGSCC-NEXT:    [[RETVAL:%.*]] = alloca [[S:%.*]], i32 0, align 8
 ; CGSCC-NEXT:    store ptr [[FOO_THIS]], ptr [[FOO_THIS]], align 8
-; CGSCC-NEXT:    call void @bar.2(ptr noalias nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[RETVAL]], ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[FOO_THIS]]) #[[ATTR6]]
+; CGSCC-NEXT:    call void @bar.2(ptr noalias nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[RETVAL]], ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[FOO_THIS]]) #[[ATTR8:[0-9]+]]
 ; CGSCC-NEXT:    [[FOO_RET:%.*]] = load [[S]], ptr [[RETVAL]], align 8
 ; CGSCC-NEXT:    ret [[S]] [[FOO_RET]]
 ;
@@ -157,20 +157,20 @@ entry:
 }
 
 define internal void @bar.2(ptr %bar.this, ptr %bar.data) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@bar.2
 ; TUNIT-SAME: (ptr noalias nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[BAR_THIS:%.*]], ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[BAR_DATA:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    store ptr [[BAR_DATA]], ptr [[BAR_THIS]], align 8
-; TUNIT-NEXT:    call void @baz(ptr nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[BAR_THIS]], ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[BAR_DATA]]) #[[ATTR5]]
+; TUNIT-NEXT:    call void @baz(ptr nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[BAR_THIS]], ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[BAR_DATA]]) #[[ATTR4]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@bar.2
 ; CGSCC-SAME: (ptr noalias nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[BAR_THIS:%.*]], ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[BAR_DATA:%.*]]) #[[ATTR0]] {
 ; CGSCC-NEXT:  entry:
 ; CGSCC-NEXT:    store ptr [[BAR_DATA]], ptr [[BAR_THIS]], align 8
-; CGSCC-NEXT:    call void @baz(ptr nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[BAR_THIS]], ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[BAR_DATA]]) #[[ATTR6]]
+; CGSCC-NEXT:    call void @baz(ptr nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[BAR_THIS]], ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[BAR_DATA]]) #[[ATTR8]]
 ; CGSCC-NEXT:    ret void
 ;
 entry:
@@ -180,14 +180,14 @@ entry:
 }
 
 define internal void @baz(ptr %baz.this, ptr %baz.data) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@baz
 ; TUNIT-SAME: (ptr nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[BAZ_THIS:%.*]], ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[BAZ_DATA:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    store ptr [[BAZ_DATA]], ptr [[BAZ_THIS]], align 8
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@baz
 ; CGSCC-SAME: (ptr nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[BAZ_THIS:%.*]], ptr nofree writeonly [[BAZ_DATA:%.*]]) #[[ATTR3:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -200,7 +200,7 @@ entry:
 }
 
 define ptr @foo(ptr %this, ptr %this.addr, ptr %this1) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@foo
 ; TUNIT-SAME: (ptr nofree noundef nonnull align 8 dereferenceable(8) [[THIS:%.*]], ptr nocapture nofree readnone [[THIS_ADDR:%.*]], ptr nocapture nofree readnone [[THIS1:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
@@ -209,12 +209,12 @@ define ptr @foo(ptr %this, ptr %this.addr, ptr %this1) {
 ; TUNIT-NEXT:    [[FOO_RET:%.*]] = extractvalue [[S]] [[CALL]], 0
 ; TUNIT-NEXT:    ret ptr [[FOO_RET]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@foo
 ; CGSCC-SAME: (ptr nofree noundef nonnull align 8 dereferenceable(8) [[THIS:%.*]], ptr nocapture nofree readnone [[THIS_ADDR:%.*]], ptr nocapture nofree readnone [[THIS1:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:  entry:
 ; CGSCC-NEXT:    store ptr [[THIS]], ptr [[THIS]], align 8
-; CGSCC-NEXT:    [[CALL:%.*]] = call [[S:%.*]] @bar.5(ptr nofree noundef nonnull align 8 dereferenceable(8) [[THIS]]) #[[ATTR8]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call [[S:%.*]] @bar.5(ptr nofree noundef nonnull align 8 dereferenceable(8) [[THIS]]) #[[ATTR6]]
 ; CGSCC-NEXT:    [[FOO_RET:%.*]] = extractvalue [[S]] [[CALL]], 0
 ; CGSCC-NEXT:    ret ptr [[FOO_RET]]
 ;
@@ -227,7 +227,7 @@ entry:
 }
 
 define internal %S @bar.5(ptr %this) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@bar.5
 ; TUNIT-SAME: (ptr nofree noundef nonnull align 8 dereferenceable(8) [[THIS:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
@@ -237,13 +237,13 @@ define internal %S @bar.5(ptr %this) {
 ; TUNIT-NEXT:    [[BAR_RET:%.*]] = load [[S]], ptr [[RETVAL]], align 8
 ; TUNIT-NEXT:    ret [[S]] [[BAR_RET]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@bar.5
 ; CGSCC-SAME: (ptr nofree noundef nonnull align 8 dereferenceable(8) [[THIS:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:  entry:
 ; CGSCC-NEXT:    [[RETVAL:%.*]] = alloca [[S:%.*]], i32 0, align 8
 ; CGSCC-NEXT:    store ptr [[THIS]], ptr [[THIS]], align 8
-; CGSCC-NEXT:    call void @baz.6(ptr noalias nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[RETVAL]], ptr nofree noundef nonnull align 8 dereferenceable(8) [[THIS]]) #[[ATTR8]]
+; CGSCC-NEXT:    call void @baz.6(ptr noalias nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[RETVAL]], ptr nofree noundef nonnull align 8 dereferenceable(8) [[THIS]]) #[[ATTR9:[0-9]+]]
 ; CGSCC-NEXT:    [[BAR_RET:%.*]] = load [[S]], ptr [[RETVAL]], align 8
 ; CGSCC-NEXT:    ret [[S]] [[BAR_RET]]
 ;
@@ -257,7 +257,7 @@ entry:
 }
 
 define internal void @baz.6(ptr %this, ptr %data) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@baz.6
 ; TUNIT-SAME: (ptr noalias nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[THIS:%.*]], ptr nofree noundef nonnull align 8 dereferenceable(8) [[DATA:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
@@ -265,12 +265,12 @@ define internal void @baz.6(ptr %this, ptr %data) {
 ; TUNIT-NEXT:    call void @boom(ptr nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[THIS]], ptr nofree noundef nonnull align 8 dereferenceable(8) [[DATA]]) #[[ATTR4]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@baz.6
 ; CGSCC-SAME: (ptr noalias nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[THIS:%.*]], ptr nofree noundef nonnull align 8 dereferenceable(8) [[DATA:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:  entry:
 ; CGSCC-NEXT:    store ptr [[DATA]], ptr [[THIS]], align 8
-; CGSCC-NEXT:    call void @boom(ptr nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[THIS]], ptr nofree noundef nonnull align 8 dereferenceable(8) [[DATA]]) #[[ATTR8]]
+; CGSCC-NEXT:    call void @boom(ptr nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[THIS]], ptr nofree noundef nonnull align 8 dereferenceable(8) [[DATA]]) #[[ATTR9]]
 ; CGSCC-NEXT:    ret void
 ;
 entry:
@@ -280,7 +280,7 @@ entry:
 }
 
 define internal void @boom(ptr %this, ptr %data) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@boom
 ; TUNIT-SAME: (ptr nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[THIS:%.*]], ptr nofree noundef nonnull align 8 dereferenceable(8) [[DATA:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
@@ -290,7 +290,7 @@ define internal void @boom(ptr %this, ptr %data) {
 ; TUNIT-NEXT:    store ptr [[V]], ptr [[THIS]], align 8
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@boom
 ; CGSCC-SAME: (ptr nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[THIS:%.*]], ptr nofree [[DATA:%.*]]) #[[ATTR4:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -371,7 +371,7 @@ declare void @ext1(ptr)
 
 ; Taken from https://github.com/llvm/llvm-project/issues/54981
 define dso_local void @spam() {
-; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind readnone
+; TUNIT: Function Attrs: nofree norecurse noreturn nosync nounwind memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@spam
 ; TUNIT-SAME: () #[[ATTR2:[0-9]+]] {
 ; TUNIT-NEXT:  bb:
@@ -402,7 +402,7 @@ define dso_local void @spam() {
 ; TUNIT:       bb35:
 ; TUNIT-NEXT:    unreachable
 ;
-; CGSCC: Function Attrs: nofree norecurse noreturn nosync nounwind readnone
+; CGSCC: Function Attrs: nofree norecurse noreturn nosync nounwind memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@spam
 ; CGSCC-SAME: () #[[ATTR5:[0-9]+]] {
 ; CGSCC-NEXT:  bb:
@@ -475,22 +475,22 @@ bb35:                                             ; preds = %bb16
 }
 
 define double @t4(ptr %this, ptr %this.addr, ptr %this1) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@t4
 ; TUNIT-SAME: (ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[THIS:%.*]], ptr nocapture nofree readnone [[THIS_ADDR:%.*]], ptr nocapture nofree readnone [[THIS1:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    [[THIS_ADDR1:%.*]] = alloca ptr, i32 0, align 8
 ; TUNIT-NEXT:    store ptr [[THIS]], ptr [[THIS]], align 8
-; TUNIT-NEXT:    [[CALL:%.*]] = call [[S:%.*]] @t4a(ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[THIS]]) #[[ATTR5]]
+; TUNIT-NEXT:    [[CALL:%.*]] = call [[S:%.*]] @t4a(ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[THIS]]) #[[ATTR4]]
 ; TUNIT-NEXT:    ret double 0.000000e+00
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@t4
 ; CGSCC-SAME: (ptr nofree noundef nonnull align 8 dereferenceable(8) [[THIS:%.*]], ptr nocapture nofree readnone [[THIS_ADDR:%.*]], ptr nocapture nofree readnone [[THIS1:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:  entry:
 ; CGSCC-NEXT:    [[THIS_ADDR1:%.*]] = alloca ptr, i32 0, align 8
 ; CGSCC-NEXT:    store ptr [[THIS]], ptr [[THIS]], align 8
-; CGSCC-NEXT:    [[CALL:%.*]] = call [[S:%.*]] @t4a(ptr nofree noundef nonnull align 8 dereferenceable(8) [[THIS]]) #[[ATTR8]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call [[S:%.*]] @t4a(ptr nofree noundef nonnull align 8 dereferenceable(8) [[THIS]]) #[[ATTR6]]
 ; CGSCC-NEXT:    [[TMP0:%.*]] = extractvalue [[S]] [[CALL]], 0
 ; CGSCC-NEXT:    ret double 0.000000e+00
 ;
@@ -504,24 +504,24 @@ entry:
 }
 
 define internal %S @t4a(ptr %this) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@t4a
 ; TUNIT-SAME: (ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[THIS:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    [[RETVAL:%.*]] = alloca [[S:%.*]], i32 0, align 8
 ; TUNIT-NEXT:    [[THIS_ADDR:%.*]] = alloca ptr, i32 0, align 8
 ; TUNIT-NEXT:    store ptr [[THIS]], ptr [[THIS]], align 8
-; TUNIT-NEXT:    call void @t4b(ptr noalias nocapture nofree noundef nonnull writeonly align 8 [[RETVAL]]) #[[ATTR5]]
+; TUNIT-NEXT:    call void @t4b(ptr noalias nocapture nofree noundef nonnull writeonly align 8 [[RETVAL]]) #[[ATTR4]]
 ; TUNIT-NEXT:    ret [[S]] undef
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@t4a
 ; CGSCC-SAME: (ptr nofree noundef nonnull align 8 dereferenceable(8) [[THIS:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:  entry:
 ; CGSCC-NEXT:    [[RETVAL:%.*]] = alloca [[S:%.*]], i32 0, align 8
 ; CGSCC-NEXT:    [[THIS_ADDR:%.*]] = alloca ptr, i32 0, align 8
 ; CGSCC-NEXT:    store ptr [[THIS]], ptr [[THIS]], align 8
-; CGSCC-NEXT:    call void @t4b(ptr noalias nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[RETVAL]], ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[THIS]]) #[[ATTR6]]
+; CGSCC-NEXT:    call void @t4b(ptr noalias nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[RETVAL]], ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[THIS]]) #[[ATTR8]]
 ; CGSCC-NEXT:    [[TMP0:%.*]] = load [[S]], ptr [[RETVAL]], align 8
 ; CGSCC-NEXT:    ret [[S]] [[TMP0]]
 ;
@@ -539,23 +539,23 @@ entry:
 }
 
 define internal void @t4b(ptr %this, ptr %data) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@t4b
 ; TUNIT-SAME: (ptr noalias nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[THIS:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    [[THIS_ADDR:%.*]] = alloca ptr, i32 0, align 8
 ; TUNIT-NEXT:    [[DATA_ADDR:%.*]] = alloca ptr, i32 0, align 8
-; TUNIT-NEXT:    call void @t4c(ptr noalias nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[THIS]]) #[[ATTR5]]
+; TUNIT-NEXT:    call void @t4c(ptr noalias nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[THIS]]) #[[ATTR4]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@t4b
 ; CGSCC-SAME: (ptr noalias nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[THIS:%.*]], ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[DATA:%.*]]) #[[ATTR0]] {
 ; CGSCC-NEXT:  entry:
 ; CGSCC-NEXT:    [[THIS_ADDR:%.*]] = alloca ptr, i32 0, align 8
 ; CGSCC-NEXT:    [[DATA_ADDR:%.*]] = alloca ptr, i32 0, align 8
 ; CGSCC-NEXT:    store ptr [[DATA]], ptr [[THIS]], align 8
-; CGSCC-NEXT:    call void @t4c(ptr nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[THIS]], ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[DATA]]) #[[ATTR6]]
+; CGSCC-NEXT:    call void @t4c(ptr nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[THIS]], ptr nofree noundef nonnull writeonly align 8 dereferenceable(8) [[DATA]]) #[[ATTR8]]
 ; CGSCC-NEXT:    ret void
 ;
 entry:
@@ -570,7 +570,7 @@ entry:
 }
 
 define internal void @t4c(ptr %this, ptr %data) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@t4c
 ; TUNIT-SAME: (ptr noalias nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[THIS:%.*]]) #[[ATTR0]] {
 ; TUNIT-NEXT:  entry:
@@ -578,7 +578,7 @@ define internal void @t4c(ptr %this, ptr %data) {
 ; TUNIT-NEXT:    [[DATA_ADDR:%.*]] = alloca ptr, i32 0, align 8
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@t4c
 ; CGSCC-SAME: (ptr nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[THIS:%.*]], ptr nofree writeonly [[DATA:%.*]]) #[[ATTR3]] {
 ; CGSCC-NEXT:  entry:
@@ -611,22 +611,22 @@ entry:
 !6 = !{i32 7, !"Dwarf Version", i32 2}
 !7 = !{i32 2, !"Debug Info Version", i32 3}
 ;.
-; TUNIT: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR1]] = { argmemonly nofree norecurse nosync nounwind willreturn }
-; TUNIT: attributes #[[ATTR2]] = { nofree norecurse noreturn nosync nounwind readnone }
-; TUNIT: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind willreturn writeonly }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) }
+; TUNIT: attributes #[[ATTR2]] = { nofree norecurse noreturn nosync nounwind memory(none) }
+; TUNIT: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind willreturn }
 ; TUNIT: attributes #[[ATTR4]] = { nofree nosync nounwind willreturn }
-; TUNIT: attributes #[[ATTR5]] = { nofree nosync nounwind willreturn writeonly }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { argmemonly nofree nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR3]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR4]] = { argmemonly nofree norecurse nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR5]] = { nofree norecurse noreturn nosync nounwind readnone }
-; CGSCC: attributes #[[ATTR6]] = { nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR7]] = { readnone willreturn }
-; CGSCC: attributes #[[ATTR8]] = { nounwind willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree nosync nounwind willreturn memory(argmem: write) }
+; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; CGSCC: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR5]] = { nofree norecurse noreturn nosync nounwind memory(none) }
+; CGSCC: attributes #[[ATTR6]] = { nounwind willreturn }
+; CGSCC: attributes #[[ATTR7]] = { willreturn }
+; CGSCC: attributes #[[ATTR8]] = { nounwind willreturn memory(write) }
+; CGSCC: attributes #[[ATTR9]] = { nounwind willreturn memory(readwrite) }
 ;.
 ; CHECK: [[META0:![0-9]+]] = !{i32 2, !"SDK Version", [2 x i32] [i32 11, i32 5]}
 ; CHECK: [[META1:![0-9]+]] = !{i32 1, !"wchar_size", i32 4}

diff  --git a/llvm/test/Transforms/Attributor/value-simplify-pointer-info-struct.ll b/llvm/test/Transforms/Attributor/value-simplify-pointer-info-struct.ll
index 28940d7328f3c..537dc304cb797 100644
--- a/llvm/test/Transforms/Attributor/value-simplify-pointer-info-struct.ll
+++ b/llvm/test/Transforms/Attributor/value-simplify-pointer-info-struct.ll
@@ -36,7 +36,7 @@ declare void @harmless_use(ptr nocapture readonly) nofree norecurse nosync nounw
 ; CHECK: @[[GLOBALS:[a-zA-Z0-9_$"\\.-]+]] = internal constant [[STRUCT_S:%.*]] { i32 42, double 3.140000e+00, ptr null, i32 0 }, align 8
 ;.
 define i32 @testOneFieldGlobalS(i32 %cmpx) {
-; CHECK: Function Attrs: nofree norecurse nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@testOneFieldGlobalS
 ; CHECK-SAME: (i32 [[CMPX:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -95,7 +95,7 @@ if.end7:                                          ; preds = %if.then5, %if.end4
 }
 
 define i32 @testOneFieldGlobalS_type_mismatch() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@testOneFieldGlobalS_type_mismatch
 ; CHECK-SAME: () #[[ATTR2:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -152,7 +152,7 @@ if.end7:                                          ; preds = %if.then5, %if.end4
 }
 
 define i32 @testOneFieldGlobalS_byte_offset_wrong() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@testOneFieldGlobalS_byte_offset_wrong
 ; CHECK-SAME: () #[[ATTR2]] {
 ; CHECK-NEXT:  entry:
@@ -210,7 +210,7 @@ if.end7:                                          ; preds = %if.then5, %if.end4
   ret i32 %r.2
 }
 ;.
-; CHECK: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree norecurse nosync nounwind readnone willreturn }
-; CHECK: attributes #[[ATTR1]] = { nofree norecurse nounwind readnone willreturn }
-; CHECK: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind readnone willreturn }
+; CHECK: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree norecurse nosync nounwind willreturn memory(none) }
+; CHECK: attributes #[[ATTR1]] = { nofree norecurse nounwind willreturn memory(none) }
+; CHECK: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/value-simplify-pointer-info.ll b/llvm/test/Transforms/Attributor/value-simplify-pointer-info.ll
index cd992da4c9f98..55e314d310d09 100644
--- a/llvm/test/Transforms/Attributor/value-simplify-pointer-info.ll
+++ b/llvm/test/Transforms/Attributor/value-simplify-pointer-info.ll
@@ -57,7 +57,7 @@
 ; CHECK: @[[GLOBAL:[a-zA-Z0-9_$"\\.-]+]] = internal global [[STRUCT_STY:%.*]] zeroinitializer, align 8
 ;.
 define void @write_arg(i32* %p, i32 %v) {
-; CHECK: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@write_arg
 ; CHECK-SAME: (i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[P:%.*]], i32 [[V:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -103,7 +103,7 @@ declare i32 @random(...)
 ;      return r;
 ;    }
 define void @local_alloca_simplifiable_1(%struct.S* noalias sret(%struct.S) align 4 %agg.result) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@local_alloca_simplifiable_1
 ; TUNIT-SAME: (%struct.S* noalias nocapture nofree nonnull writeonly sret([[STRUCT_S:%.*]]) align 4 dereferenceable(24) [[AGG_RESULT:%.*]]) #[[ATTR1:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
@@ -135,7 +135,7 @@ define void @local_alloca_simplifiable_1(%struct.S* noalias sret(%struct.S) alig
 ; TUNIT-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 24, i8* nocapture nofree noundef nonnull align 4 dereferenceable(24) [[I12]]) #[[ATTR15]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@local_alloca_simplifiable_1
 ; CGSCC-SAME: (%struct.S* noalias nocapture nofree nonnull writeonly sret([[STRUCT_S:%.*]]) align 4 dereferenceable(24) [[AGG_RESULT:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -538,7 +538,7 @@ for.end38:                                        ; preds = %for.cond.cleanup30
 ;    }
 ;
 define i32 @local_alloca_simplifiable_3() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@local_alloca_simplifiable_3
 ; CHECK-SAME: () #[[ATTR4:[0-9]+]] {
 ; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
@@ -563,7 +563,7 @@ split:
 ;    }
 ;
 define i32 @local_alloca_simplifiable_4() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@local_alloca_simplifiable_4
 ; CHECK-SAME: () #[[ATTR4]] {
 ; CHECK-NEXT:    ret i32 undef
@@ -725,7 +725,7 @@ cond.end:                                         ; preds = %cond.false, %cond.t
 ;    }
 ;
 define void @static_global_simplifiable_1(%struct.S* noalias sret(%struct.S) align 4 %agg.result) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@static_global_simplifiable_1
 ; TUNIT-SAME: (%struct.S* noalias nocapture nofree nonnull writeonly sret([[STRUCT_S:%.*]]) align 4 dereferenceable(24) [[AGG_RESULT:%.*]]) #[[ATTR5:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
@@ -832,7 +832,7 @@ entry:
 ;    }
 ;
 define void @static_global_simplifiable_2() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@static_global_simplifiable_2
 ; TUNIT-SAME: () #[[ATTR5]] {
 ; TUNIT-NEXT:  entry:
@@ -1075,13 +1075,13 @@ for.end35:                                        ; preds = %for.cond.cleanup27
 ;      return Flag3;
 ;    }
 define i32 @static_global_simplifiable_3() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@static_global_simplifiable_3
 ; TUNIT-SAME: () #[[ATTR5]] {
 ; TUNIT-NEXT:    store i32 1, i32* @Flag3, align 4, !tbaa [[TBAA3]]
 ; TUNIT-NEXT:    ret i32 1
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@static_global_simplifiable_3
 ; CGSCC-SAME: () #[[ATTR6:[0-9]+]] {
 ; CGSCC-NEXT:    store i32 1, i32* @Flag3, align 4, !tbaa [[TBAA3]]
@@ -1110,7 +1110,7 @@ define i32 @static_global_simplifiable_3() {
 ;    }
 ;
 define void @noalias_arg_simplifiable_1(%struct.S* noalias sret(%struct.S) align 4 %agg.result, %struct.S* byval(%struct.S) align 8 %s) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@noalias_arg_simplifiable_1
 ; TUNIT-SAME: (%struct.S* noalias nocapture nofree nonnull writeonly sret([[STRUCT_S:%.*]]) align 4 dereferenceable(24) [[AGG_RESULT:%.*]], %struct.S* noalias nocapture nofree nonnull byval([[STRUCT_S]]) align 8 dereferenceable(24) [[S:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
@@ -1160,7 +1160,7 @@ define void @noalias_arg_simplifiable_1(%struct.S* noalias sret(%struct.S) align
 ; TUNIT-NEXT:    store i32 [[ADD15]], i32* [[I316]], align 4, !tbaa [[TBAA14]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@noalias_arg_simplifiable_1
 ; CGSCC-SAME: (%struct.S* noalias nocapture nofree nonnull writeonly sret([[STRUCT_S:%.*]]) align 4 dereferenceable(24) [[AGG_RESULT:%.*]], %struct.S* noalias nocapture nofree nonnull byval([[STRUCT_S]]) align 8 dereferenceable(24) [[S:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:  entry:
@@ -1683,7 +1683,7 @@ join:                                             ; preds = %right, %left
 
 ; We could simplify these if we separate accessed bins wrt. alignment (here mod 4).
 define i32 @unknown_access_mixed_simplifiable(i32 %arg1, i32 %arg2) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@unknown_access_mixed_simplifiable
 ; CHECK-SAME: (i32 [[ARG1:%.*]], i32 [[ARG2:%.*]]) #[[ATTR4]] {
 ; CHECK-NEXT:  entry:
@@ -1721,7 +1721,7 @@ entry:
 
 ; The access to bc4b could go anywhere, nothing is simplifiable.
 define i32 @unknown_access_mixed_not_simplifiable(i32 %arg1, i32 %arg2, i32 %arg3) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@unknown_access_mixed_not_simplifiable
 ; CHECK-SAME: (i32 [[ARG1:%.*]], i32 [[ARG2:%.*]], i32 [[ARG3:%.*]]) #[[ATTR4]] {
 ; CHECK-NEXT:  entry:
@@ -1777,14 +1777,14 @@ declare void @escape(i8*)
 ;    }
 ;
 define i32 @global_not_simplifiable_1(i32 %cnd) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(read)
 ; TUNIT-LABEL: define {{[^@]+}}@global_not_simplifiable_1
 ; TUNIT-SAME: (i32 [[CND:%.*]]) #[[ATTR6:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    [[I:%.*]] = load i32, i32* @Flag0, align 4, !tbaa [[TBAA3]]
 ; TUNIT-NEXT:    ret i32 [[I]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(read)
 ; CGSCC-LABEL: define {{[^@]+}}@global_not_simplifiable_1
 ; CGSCC-SAME: (i32 [[CND:%.*]]) #[[ATTR7:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -1891,13 +1891,13 @@ entry:
   ret i32 %i
 }
 define void @static_global_not_simplifiable_2_helper() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@static_global_not_simplifiable_2_helper
 ; TUNIT-SAME: () #[[ATTR5]] {
 ; TUNIT-NEXT:    store i32 2, i32* @Flag4, align 4, !tbaa [[TBAA3]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@static_global_not_simplifiable_2_helper
 ; CGSCC-SAME: () #[[ATTR6]] {
 ; CGSCC-NEXT:    store i32 2, i32* @Flag4, align 4, !tbaa [[TBAA3]]
@@ -1964,13 +1964,13 @@ define i32 @write_read_global() {
   ret i32 %l
 }
 define void @write_global() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@write_global
 ; TUNIT-SAME: () #[[ATTR5]] {
 ; TUNIT-NEXT:    store i32 7, i32* @Gint2, align 4
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@write_global
 ; CGSCC-SAME: () #[[ATTR6]] {
 ; CGSCC-NEXT:    store i32 7, i32* @Gint2, align 4
@@ -1980,13 +1980,13 @@ define void @write_global() {
   ret void
 }
 define i32 @read_global() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(read)
 ; TUNIT-LABEL: define {{[^@]+}}@read_global
 ; TUNIT-SAME: () #[[ATTR6]] {
 ; TUNIT-NEXT:    [[L:%.*]] = load i32, i32* @Gint2, align 4
 ; TUNIT-NEXT:    ret i32 [[L]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(read)
 ; CGSCC-LABEL: define {{[^@]+}}@read_global
 ; CGSCC-SAME: () #[[ATTR7]] {
 ; CGSCC-NEXT:    [[L:%.*]] = load i32, i32* @Gint2, align 4
@@ -1996,12 +1996,12 @@ define i32 @read_global() {
   ret i32 %l
 }
 define i32 @write_read_static_global() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@write_read_static_global
 ; TUNIT-SAME: () #[[ATTR5]] {
 ; TUNIT-NEXT:    ret i32 7
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@write_read_static_global
 ; CGSCC-SAME: () #[[ATTR6]] {
 ; CGSCC-NEXT:    ret i32 7
@@ -2011,13 +2011,13 @@ define i32 @write_read_static_global() {
   ret i32 %l
 }
 define void @write_static_global() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@write_static_global
 ; TUNIT-SAME: () #[[ATTR5]] {
 ; TUNIT-NEXT:    store i32 7, i32* @Gstatic_int2, align 4
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@write_static_global
 ; CGSCC-SAME: () #[[ATTR6]] {
 ; CGSCC-NEXT:    store i32 7, i32* @Gstatic_int2, align 4
@@ -2027,13 +2027,13 @@ define void @write_static_global() {
   ret void
 }
 define i32 @read_static_global() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(read)
 ; TUNIT-LABEL: define {{[^@]+}}@read_static_global
 ; TUNIT-SAME: () #[[ATTR6]] {
 ; TUNIT-NEXT:    [[L:%.*]] = load i32, i32* @Gstatic_int2, align 4
 ; TUNIT-NEXT:    ret i32 [[L]]
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(read)
 ; CGSCC-LABEL: define {{[^@]+}}@read_static_global
 ; CGSCC-SAME: () #[[ATTR7]] {
 ; CGSCC-NEXT:    [[L:%.*]] = load i32, i32* @Gstatic_int2, align 4
@@ -2043,12 +2043,12 @@ define i32 @read_static_global() {
   ret i32 %l
 }
 define i32 @write_read_static_undef_global() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@write_read_static_undef_global
 ; TUNIT-SAME: () #[[ATTR5]] {
 ; TUNIT-NEXT:    ret i32 7
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@write_read_static_undef_global
 ; CGSCC-SAME: () #[[ATTR6]] {
 ; CGSCC-NEXT:    ret i32 7
@@ -2058,12 +2058,12 @@ define i32 @write_read_static_undef_global() {
   ret i32 %l
 }
 define void @write_static_undef_global() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@write_static_undef_global
 ; TUNIT-SAME: () #[[ATTR5]] {
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@write_static_undef_global
 ; CGSCC-SAME: () #[[ATTR6]] {
 ; CGSCC-NEXT:    store i32 7, i32* @Gstatic_undef_int2, align 4
@@ -2073,7 +2073,7 @@ define void @write_static_undef_global() {
   ret void
 }
 define i32 @read_static_undef_global() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@read_static_undef_global
 ; CHECK-SAME: () #[[ATTR4]] {
 ; CHECK-NEXT:    ret i32 7
@@ -2083,7 +2083,7 @@ define i32 @read_static_undef_global() {
 }
 
 define i32 @single_read_of_static_global() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@single_read_of_static_global
 ; CHECK-SAME: () #[[ATTR4]] {
 ; CHECK-NEXT:    ret i32 0
@@ -2383,7 +2383,7 @@ define i64 @cast_and_load_2() {
 
 define void @recursive_load_store(i64 %N, i32 %v) {
 ;
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@recursive_load_store
 ; TUNIT-SAME: (i64 [[N:%.*]], i32 [[V:%.*]]) #[[ATTR7:[0-9]+]] {
 ; TUNIT-NEXT:  entry:
@@ -2398,7 +2398,7 @@ define void @recursive_load_store(i64 %N, i32 %v) {
 ; TUNIT:       for.end:
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@recursive_load_store
 ; CGSCC-SAME: (i64 [[N:%.*]], i32 [[V:%.*]]) #[[ATTR8:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -2857,7 +2857,7 @@ entry:
 ; Make sure the access %1 is not forwarded to the loads %2 and %3 as the indices are
 ; varying and the accesses thus not "exact". This used to simplify %cmp12 to true.
 define hidden void @no_propagation_of_unknown_index_access(i32* %in, i32* %out, i32 %idx) #0 {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@no_propagation_of_unknown_index_access
 ; TUNIT-SAME: (i32* nocapture nofree readonly [[IN:%.*]], i32* nocapture nofree writeonly [[OUT:%.*]], i32 [[IDX:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
@@ -2900,7 +2900,7 @@ define hidden void @no_propagation_of_unknown_index_access(i32* %in, i32* %out,
 ; TUNIT-NEXT:    [[INC16]] = add nsw i32 [[I3_0]], 1
 ; TUNIT-NEXT:    br label [[FOR_COND4]], !llvm.loop [[TBAA12]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@no_propagation_of_unknown_index_access
 ; CGSCC-SAME: (i32* nocapture nofree readonly [[IN:%.*]], i32* nocapture nofree writeonly [[OUT:%.*]], i32 [[IDX:%.*]]) #[[ATTR13:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
@@ -2992,7 +2992,7 @@ for.body7:                                        ; preds = %for.cond4
 
 ; Ensure we do not return true.
 define internal i1 @alloca_non_unique(i32* %p, i32 %in, i1 %c) {
-; TUNIT: Function Attrs: argmemonly nofree nosync nounwind
+; TUNIT: Function Attrs: nofree nosync nounwind memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@alloca_non_unique
 ; TUNIT-SAME: (i32* nocapture nofree nonnull readonly align 4 [[P:%.*]], i32 [[IN:%.*]], i1 [[C:%.*]]) #[[ATTR12:[0-9]+]] {
 ; TUNIT-NEXT:    [[A:%.*]] = alloca i32, align 4
@@ -3006,7 +3006,7 @@ define internal i1 @alloca_non_unique(i32* %p, i32 %in, i1 %c) {
 ; TUNIT-NEXT:    [[CMP:%.*]] = icmp eq i32 [[IN]], [[L]]
 ; TUNIT-NEXT:    ret i1 [[CMP]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind
+; CGSCC: Function Attrs: nofree nosync nounwind memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@alloca_non_unique
 ; CGSCC-SAME: (i32* nocapture nofree nonnull readonly align 4 [[P:%.*]], i32 [[IN:%.*]], i1 [[C:%.*]]) #[[ATTR14:[0-9]+]] {
 ; CGSCC-NEXT:    [[A:%.*]] = alloca i32, align 4
@@ -3034,13 +3034,13 @@ f:
 
 ; Ensure we do not return true.
 define i1 @alloca_non_unique_caller(i32 %in, i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@alloca_non_unique_caller
 ; TUNIT-SAME: (i32 [[IN:%.*]], i1 [[C:%.*]]) #[[ATTR13:[0-9]+]] {
 ; TUNIT-NEXT:    [[R:%.*]] = call i1 @alloca_non_unique(i32* undef, i32 [[IN]], i1 [[C]]) #[[ATTR20]]
 ; TUNIT-NEXT:    ret i1 [[R]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone
+; CGSCC: Function Attrs: nofree nosync nounwind memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@alloca_non_unique_caller
 ; CGSCC-SAME: (i32 [[IN:%.*]], i1 [[C:%.*]]) #[[ATTR15:[0-9]+]] {
 ; CGSCC-NEXT:    [[R:%.*]] = call i1 @alloca_non_unique(i32* undef, i32 [[IN]], i1 [[C]]) #[[ATTR22]]
@@ -3052,22 +3052,22 @@ define i1 @alloca_non_unique_caller(i32 %in, i1 %c) {
 
 ; Ensure we do not return %bad or %l, but %sel
 define i32 @scope_value_traversal(i32 %bad, i1 %c, i1 %c2) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@scope_value_traversal
 ; TUNIT-SAME: (i32 [[BAD:%.*]], i1 [[C:%.*]], i1 [[C2:%.*]]) #[[ATTR4]] {
 ; TUNIT-NEXT:    [[A:%.*]] = alloca i32, align 4
 ; TUNIT-NEXT:    store i32 [[BAD]], i32* [[A]], align 4
-; TUNIT-NEXT:    call void @scope_value_traversal_helper(i32* noalias nocapture nofree noundef nonnull align 4 dereferenceable(4) [[A]], i1 [[C2]]) #[[ATTR21:[0-9]+]]
+; TUNIT-NEXT:    call void @scope_value_traversal_helper(i32* noalias nocapture nofree noundef nonnull align 4 dereferenceable(4) [[A]], i1 [[C2]]) #[[ATTR16]]
 ; TUNIT-NEXT:    [[L:%.*]] = load i32, i32* [[A]], align 4
 ; TUNIT-NEXT:    [[SEL:%.*]] = select i1 [[C]], i32 [[BAD]], i32 [[L]]
 ; TUNIT-NEXT:    ret i32 [[SEL]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@scope_value_traversal
 ; CGSCC-SAME: (i32 [[BAD:%.*]], i1 [[C:%.*]], i1 [[C2:%.*]]) #[[ATTR16:[0-9]+]] {
 ; CGSCC-NEXT:    [[A:%.*]] = alloca i32, align 4
 ; CGSCC-NEXT:    store i32 [[BAD]], i32* [[A]], align 4
-; CGSCC-NEXT:    call void @scope_value_traversal_helper(i32* noalias nocapture nofree noundef nonnull align 4 dereferenceable(4) [[A]], i1 [[C2]]) #[[ATTR24:[0-9]+]]
+; CGSCC-NEXT:    call void @scope_value_traversal_helper(i32* noalias nocapture nofree noundef nonnull align 4 dereferenceable(4) [[A]], i1 [[C2]]) #[[ATTR19]]
 ; CGSCC-NEXT:    [[L:%.*]] = load i32, i32* [[A]], align 4
 ; CGSCC-NEXT:    [[SEL:%.*]] = select i1 [[C]], i32 [[BAD]], i32 [[L]]
 ; CGSCC-NEXT:    ret i32 [[SEL]]
@@ -3081,7 +3081,7 @@ define i32 @scope_value_traversal(i32 %bad, i1 %c, i1 %c2) {
 }
 
 define void @scope_value_traversal_helper(i32* %a, i1 %c) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; TUNIT-LABEL: define {{[^@]+}}@scope_value_traversal_helper
 ; TUNIT-SAME: (i32* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[A:%.*]], i1 [[C:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    [[L:%.*]] = load i32, i32* [[A]], align 4
@@ -3089,7 +3089,7 @@ define void @scope_value_traversal_helper(i32* %a, i1 %c) {
 ; TUNIT-NEXT:    store i32 [[SEL]], i32* [[A]], align 4
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; CGSCC-LABEL: define {{[^@]+}}@scope_value_traversal_helper
 ; CGSCC-SAME: (i32* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[A:%.*]], i1 [[C:%.*]]) #[[ATTR13]] {
 ; CGSCC-NEXT:    [[L:%.*]] = load i32, i32* [[A]], align 4
@@ -3139,54 +3139,52 @@ define void @scope_value_traversal_helper(i32* %a, i1 %c) {
 !30 = distinct !{!30, !17}
 !31 = distinct !{!31, !17}
 ;.
-; TUNIT: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR1]] = { argmemonly nofree norecurse nosync nounwind willreturn }
-; TUNIT: attributes #[[ATTR2:[0-9]+]] = { argmemonly nocallback nofree nosync nounwind willreturn }
+; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) }
+; TUNIT: attributes #[[ATTR2:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
 ; TUNIT: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind willreturn }
-; TUNIT: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR5]] = { nofree norecurse nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR6]] = { nofree norecurse nosync nounwind readonly willreturn }
-; TUNIT: attributes #[[ATTR7]] = { nofree norecurse nosync nounwind writeonly }
+; TUNIT: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR5]] = { nofree norecurse nosync nounwind willreturn memory(write) }
+; TUNIT: attributes #[[ATTR6]] = { nofree norecurse nosync nounwind willreturn memory(read) }
+; TUNIT: attributes #[[ATTR7]] = { nofree norecurse nosync nounwind memory(write) }
 ; TUNIT: attributes #[[ATTR8:[0-9]+]] = { allockind("alloc,uninitialized") allocsize(0) "alloc-family"="malloc" }
 ; TUNIT: attributes #[[ATTR9:[0-9]+]] = { allockind("free") "alloc-family"="malloc" }
 ; TUNIT: attributes #[[ATTR10:[0-9]+]] = { allockind("alloc,zeroed") allocsize(0,1) "alloc-family"="malloc" }
 ; TUNIT: attributes #[[ATTR11]] = { nofree norecurse nosync nounwind willreturn uwtable }
-; TUNIT: attributes #[[ATTR12]] = { argmemonly nofree nosync nounwind }
-; TUNIT: attributes #[[ATTR13]] = { nofree norecurse nosync nounwind readnone }
-; TUNIT: attributes #[[ATTR14:[0-9]+]] = { argmemonly nocallback nofree nounwind willreturn writeonly }
+; TUNIT: attributes #[[ATTR12]] = { nofree nosync nounwind memory(argmem: readwrite) }
+; TUNIT: attributes #[[ATTR13]] = { nofree norecurse nosync nounwind memory(none) }
+; TUNIT: attributes #[[ATTR14:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) }
 ; TUNIT: attributes #[[ATTR15]] = { willreturn }
-; TUNIT: attributes #[[ATTR16]] = { nofree nosync nounwind willreturn writeonly }
+; TUNIT: attributes #[[ATTR16]] = { nofree nosync nounwind willreturn }
 ; TUNIT: attributes #[[ATTR17]] = { nocallback }
 ; TUNIT: attributes #[[ATTR18]] = { norecurse }
 ; TUNIT: attributes #[[ATTR19]] = { nounwind }
 ; TUNIT: attributes #[[ATTR20]] = { nofree nosync nounwind }
-; TUNIT: attributes #[[ATTR21]] = { nofree nosync nounwind willreturn }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR1]] = { argmemonly nofree nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR2:[0-9]+]] = { argmemonly nocallback nofree nosync nounwind willreturn }
+; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR2:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
 ; CGSCC: attributes #[[ATTR3]] = { nofree nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ; CGSCC: attributes #[[ATTR5]] = { nofree norecurse nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR6]] = { nofree norecurse nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR7]] = { nofree norecurse nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR8]] = { nofree norecurse nosync nounwind writeonly }
+; CGSCC: attributes #[[ATTR6]] = { nofree norecurse nosync nounwind willreturn memory(write) }
+; CGSCC: attributes #[[ATTR7]] = { nofree norecurse nosync nounwind willreturn memory(read) }
+; CGSCC: attributes #[[ATTR8]] = { nofree norecurse nosync nounwind memory(write) }
 ; CGSCC: attributes #[[ATTR9:[0-9]+]] = { allockind("alloc,uninitialized") allocsize(0) "alloc-family"="malloc" }
 ; CGSCC: attributes #[[ATTR10:[0-9]+]] = { allockind("free") "alloc-family"="malloc" }
 ; CGSCC: attributes #[[ATTR11:[0-9]+]] = { allockind("alloc,zeroed") allocsize(0,1) "alloc-family"="malloc" }
 ; CGSCC: attributes #[[ATTR12]] = { nofree norecurse nosync nounwind willreturn uwtable }
-; CGSCC: attributes #[[ATTR13]] = { argmemonly nofree norecurse nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR14]] = { argmemonly nofree nosync nounwind }
-; CGSCC: attributes #[[ATTR15]] = { nofree nosync nounwind readnone }
-; CGSCC: attributes #[[ATTR16]] = { nofree nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR17:[0-9]+]] = { argmemonly nocallback nofree nounwind willreturn writeonly }
+; CGSCC: attributes #[[ATTR13]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR14]] = { nofree nosync nounwind memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR15]] = { nofree nosync nounwind memory(none) }
+; CGSCC: attributes #[[ATTR16]] = { nofree nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR17:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) }
 ; CGSCC: attributes #[[ATTR18]] = { willreturn }
-; CGSCC: attributes #[[ATTR19]] = { nounwind willreturn writeonly }
+; CGSCC: attributes #[[ATTR19]] = { nounwind willreturn }
 ; CGSCC: attributes #[[ATTR20]] = { nocallback }
 ; CGSCC: attributes #[[ATTR21]] = { norecurse }
 ; CGSCC: attributes #[[ATTR22]] = { nounwind }
 ; CGSCC: attributes #[[ATTR23]] = { nofree nosync nounwind }
-; CGSCC: attributes #[[ATTR24]] = { nounwind willreturn }
 ;.
 ; TUNIT: [[META0:![0-9]+]] = !{i32 1, !"wchar_size", i32 4}
 ; TUNIT: [[META1:![0-9]+]] = !{i32 7, !"uwtable", i32 1}

diff  --git a/llvm/test/Transforms/Attributor/value-simplify.ll b/llvm/test/Transforms/Attributor/value-simplify.ll
index 7c79c4e3d059c..490b5bb7e876c 100644
--- a/llvm/test/Transforms/Attributor/value-simplify.ll
+++ b/llvm/test/Transforms/Attributor/value-simplify.ll
@@ -15,7 +15,7 @@ declare i8* @llvm.call.preallocated.arg(token, i32)
 ; CHECK: @[[G:[a-zA-Z0-9_$"\\.-]+]] = internal constant { [2 x i8*] } { [2 x i8*] [i8* bitcast (void (i8***)* @f1 to i8*), i8* bitcast (void (i1 (i8*)*)* @f2 to i8*)] }
 ;.
 define internal i32 addrspace(3)* @const_ptr_return_as3() {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@const_ptr_return_as3
 ; CGSCC-SAME: () #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:    ret i32 addrspace(3)* @ConstAS3Ptr
@@ -23,7 +23,7 @@ define internal i32 addrspace(3)* @const_ptr_return_as3() {
   ret i32 addrspace(3)* @ConstAS3Ptr
 }
 define internal i32* @const_ptr_return() {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@const_ptr_return
 ; CGSCC-SAME: () #[[ATTR1]] {
 ; CGSCC-NEXT:    ret i32* addrspacecast (i32 addrspace(3)* @ConstAS3Ptr to i32*)
@@ -52,7 +52,7 @@ define void @test1_helper() {
 
 ; TEST 2 : Simplify return value
 define i32 @return0() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@return0
 ; CHECK-SAME: () #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:    ret i32 0
@@ -61,7 +61,7 @@ define i32 @return0() {
 }
 
 define i32 @return1() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@return1
 ; CHECK-SAME: () #[[ATTR1]] {
 ; CHECK-NEXT:    ret i32 1
@@ -70,7 +70,7 @@ define i32 @return1() {
 }
 
 define i32 @test2_1(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@test2_1
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    br i1 [[C]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]]
@@ -83,7 +83,7 @@ define i32 @test2_1(i1 %c) {
 ; TUNIT-NEXT:    [[RET:%.*]] = phi i32 [ [[RET0]], [[IF_TRUE]] ], [ 1, [[IF_FALSE]] ]
 ; TUNIT-NEXT:    ret i32 1
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@test2_1
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2:[0-9]+]] {
 ; CGSCC-NEXT:    br i1 [[C]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]]
@@ -116,12 +116,12 @@ end:
 
 
 define i32 @test2_2(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@test2_2
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i32 1
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@test2_2
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    [[RET:%.*]] = tail call noundef i32 @test2_1(i1 [[C]]) #[[ATTR12]]
@@ -229,7 +229,7 @@ end:
 }
 
 define i32 @ipccp1(i32 %a) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@ipccp1
 ; CHECK-SAME: (i32 returned [[A:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:    br i1 true, label [[T:%.*]], label [[F:%.*]]
@@ -247,7 +247,7 @@ f:
 }
 
 define internal i1 @ipccp2i(i1 %a) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@ipccp2i
 ; CGSCC-SAME: () #[[ATTR1]] {
 ; CGSCC-NEXT:    br label [[T:%.*]]
@@ -265,12 +265,12 @@ f:
 }
 
 define i1 @ipccp2() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@ipccp2
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i1 true
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@ipccp2
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    [[R:%.*]] = call noundef i1 @ipccp2i() #[[ATTR12]]
@@ -281,7 +281,7 @@ define i1 @ipccp2() {
 }
 
 define internal i1 @ipccp2ib(i1 %a) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@ipccp2ib
 ; CGSCC-SAME: () #[[ATTR1]] {
 ; CGSCC-NEXT:    br label [[T:%.*]]
@@ -299,12 +299,12 @@ f:
 }
 
 define i1 @ipccp2b() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@ipccp2b
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i1 true
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@ipccp2b
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    [[R:%.*]] = call noundef i1 @ipccp2ib() #[[ATTR12]]
@@ -315,7 +315,7 @@ define i1 @ipccp2b() {
 }
 
 define internal i32 @ipccp3i(i32 %a) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@ipccp3i
 ; CGSCC-SAME: () #[[ATTR1]] {
 ; CGSCC-NEXT:    br label [[T:%.*]]
@@ -334,12 +334,12 @@ f:
 }
 
 define i32 @ipccp3() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@ipccp3
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i32 7
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@ipccp3
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    [[R:%.*]] = call noundef i32 @ipccp3i() #[[ATTR12]]
@@ -350,7 +350,7 @@ define i32 @ipccp3() {
 }
 
 define internal i32 @ipccp4ia(i1 %c) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@ipccp4ia
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
@@ -366,7 +366,7 @@ f:
   ret i32 1
 }
 define internal i32 @ipccp4ib(i32 %a) {
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@ipccp4ib
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    br label [[T:%.*]]
@@ -386,7 +386,7 @@ f:
 }
 
 define i32 @ipccp4(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@ipccp4
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
@@ -395,7 +395,7 @@ define i32 @ipccp4(i1 %c) {
 ; TUNIT:       f:
 ; TUNIT-NEXT:    ret i32 0
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@ipccp4
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
@@ -417,7 +417,7 @@ f:
 ; Do not touch complicated arguments (for now)
 %struct.X = type { i8* }
 define internal i32* @test_inalloca(i32* inalloca(i32) %a) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test_inalloca
 ; CHECK-SAME: (i32* noalias nofree nonnull returned writeonly inalloca(i32) dereferenceable(4) "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:    ret i32* [[A]]
@@ -425,13 +425,13 @@ define internal i32* @test_inalloca(i32* inalloca(i32) %a) {
   ret i32* %a
 }
 define i32* @complicated_args_inalloca(i32* %arg) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@complicated_args_inalloca
 ; TUNIT-SAME: (i32* nofree readnone "no-capture-maybe-returned" [[ARG:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    [[CALL:%.*]] = call nonnull dereferenceable(4) i32* @test_inalloca(i32* noalias nofree writeonly inalloca(i32) "no-capture-maybe-returned" [[ARG]]) #[[ATTR9:[0-9]+]]
 ; TUNIT-NEXT:    ret i32* [[CALL]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@complicated_args_inalloca
 ; CGSCC-SAME: (i32* nofree noundef nonnull readnone dereferenceable(4) [[ARG:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    [[CALL:%.*]] = call noalias nonnull dereferenceable(4) i32* @test_inalloca(i32* noalias nofree noundef nonnull writeonly inalloca(i32) dereferenceable(4) [[ARG]]) #[[ATTR12]]
@@ -442,7 +442,7 @@ define i32* @complicated_args_inalloca(i32* %arg) {
 }
 
 define internal i32* @test_preallocated(i32* preallocated(i32) %a) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test_preallocated
 ; CHECK-SAME: (i32* noalias nofree noundef nonnull returned writeonly preallocated(i32) align 4294967296 dereferenceable(4) "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:    ret i32* [[A]]
@@ -460,7 +460,8 @@ define i32* @complicated_args_preallocated() {
 ; CGSCC: Function Attrs: nofree nosync nounwind willreturn
 ; CGSCC-LABEL: define {{[^@]+}}@complicated_args_preallocated
 ; CGSCC-SAME: () #[[ATTR3:[0-9]+]] {
-; CGSCC-NEXT:    [[C:%.*]] = call token @llvm.call.preallocated.setup(i32 noundef 1) #[[ATTR13:[0-9]+]]
+; CGSCC-NEXT:    [[C:%.*]] = call token @llvm.call.preallocated.setup(i32 noundef 1) #[[ATTR12]]
+; CGSCC-NEXT:    [[CALL:%.*]] = call i32* @test_preallocated(i32* noalias nocapture nofree noundef writeonly preallocated(i32) align 4294967296 null) #[[ATTR13:[0-9]+]] [ "preallocated"(token [[C]]) ]
 ; CGSCC-NEXT:    ret i32* null
 ;
   %c = call token @llvm.call.preallocated.setup(i32 1)
@@ -470,13 +471,13 @@ define i32* @complicated_args_preallocated() {
 
 define internal void @test_sret(%struct.X* sret(%struct.X) %a, %struct.X** %b) {
 ;
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@test_sret
 ; TUNIT-SAME: (%struct.X* noalias nofree noundef nonnull writeonly sret([[STRUCT_X:%.*]]) align 4294967296 dereferenceable(8) [[A:%.*]], %struct.X** nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[B:%.*]]) #[[ATTR3:[0-9]+]] {
 ; TUNIT-NEXT:    store %struct.X* [[A]], %struct.X** [[B]], align 8
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@test_sret
 ; CGSCC-SAME: (%struct.X* noalias nofree noundef nonnull writeonly sret([[STRUCT_X:%.*]]) align 4294967296 dereferenceable(8) [[A:%.*]], %struct.X** nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[B:%.*]]) #[[ATTR4:[0-9]+]] {
 ; CGSCC-NEXT:    store %struct.X* [[A]], %struct.X** [[B]], align 8
@@ -489,13 +490,13 @@ define internal void @test_sret(%struct.X* sret(%struct.X) %a, %struct.X** %b) {
 define void @complicated_args_sret(%struct.X** %b) {
 ;
 ;
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@complicated_args_sret
 ; TUNIT-SAME: (%struct.X** nocapture nofree writeonly [[B:%.*]]) #[[ATTR3]] {
-; TUNIT-NEXT:    call void @test_sret(%struct.X* noalias nocapture nofree noundef writeonly sret([[STRUCT_X:%.*]]) align 4294967296 null, %struct.X** nocapture nofree writeonly align 8 [[B]]) #[[ATTR11:[0-9]+]]
+; TUNIT-NEXT:    call void @test_sret(%struct.X* noalias nocapture nofree noundef writeonly sret([[STRUCT_X:%.*]]) align 4294967296 null, %struct.X** nocapture nofree writeonly align 8 [[B]]) #[[ATTR9]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@complicated_args_sret
 ; CGSCC-SAME: (%struct.X** nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[B:%.*]]) #[[ATTR5:[0-9]+]] {
 ; CGSCC-NEXT:    unreachable
@@ -505,7 +506,7 @@ define void @complicated_args_sret(%struct.X** %b) {
 }
 
 define internal %struct.X* @test_nest(%struct.X* nest %a) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@test_nest
 ; CGSCC-SAME: (%struct.X* nest noalias nocapture nofree readnone align 4294967296 [[A:%.*]]) #[[ATTR1]] {
 ; CGSCC-NEXT:    ret %struct.X* null
@@ -513,12 +514,12 @@ define internal %struct.X* @test_nest(%struct.X* nest %a) {
   ret %struct.X* %a
 }
 define %struct.X* @complicated_args_nest() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@complicated_args_nest
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:    ret %struct.X* null
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@complicated_args_nest
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    [[CALL:%.*]] = call noalias noundef align 4294967296 %struct.X* @test_nest(%struct.X* noalias nocapture nofree noundef readnone align 4294967296 null) #[[ATTR12]]
@@ -530,7 +531,7 @@ define %struct.X* @complicated_args_nest() {
 
 @S = external global %struct.X
 define internal void @test_byval(%struct.X* byval(%struct.X) %a) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@test_byval
 ; TUNIT-SAME: (i8* [[TMP0:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:    [[A_PRIV:%.*]] = alloca [[STRUCT_X:%.*]], align 8
@@ -540,7 +541,7 @@ define internal void @test_byval(%struct.X* byval(%struct.X) %a) {
 ; TUNIT-NEXT:    store i8* null, i8** [[G0]], align 8
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@test_byval
 ; CGSCC-SAME: (i8* [[TMP0:%.*]]) #[[ATTR4]] {
 ; CGSCC-NEXT:    [[A_PRIV:%.*]] = alloca [[STRUCT_X:%.*]], align 8
@@ -555,19 +556,19 @@ define internal void @test_byval(%struct.X* byval(%struct.X) %a) {
   ret void
 }
 define void @complicated_args_byval() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@complicated_args_byval
 ; TUNIT-SAME: () #[[ATTR4:[0-9]+]] {
 ; TUNIT-NEXT:    [[S_CAST:%.*]] = bitcast %struct.X* @S to i8**
 ; TUNIT-NEXT:    [[TMP1:%.*]] = load i8*, i8** [[S_CAST]], align 8
-; TUNIT-NEXT:    call void @test_byval(i8* [[TMP1]]) #[[ATTR11]]
+; TUNIT-NEXT:    call void @test_byval(i8* [[TMP1]]) #[[ATTR9]]
 ; TUNIT-NEXT:    ret void
 ;
 ; CGSCC: Function Attrs: nofree nosync nounwind willreturn
 ; CGSCC-LABEL: define {{[^@]+}}@complicated_args_byval
 ; CGSCC-SAME: () #[[ATTR3]] {
 ; CGSCC-NEXT:    [[TMP1:%.*]] = load i8*, i8** getelementptr inbounds ([[STRUCT_X:%.*]], %struct.X* @S, i32 0, i32 0), align 8
-; CGSCC-NEXT:    call void @test_byval(i8* nofree writeonly [[TMP1]]) #[[ATTR14:[0-9]+]]
+; CGSCC-NEXT:    call void @test_byval(i8* nofree writeonly [[TMP1]]) #[[ATTR13]]
 ; CGSCC-NEXT:    ret void
 ;
   call void @test_byval(%struct.X* byval(%struct.X) @S)
@@ -610,7 +611,7 @@ define i8* @complicated_args_byval2() {
 }
 
 define void @fixpoint_changed(i32* %p) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@fixpoint_changed
 ; TUNIT-SAME: (i32* nocapture nofree writeonly [[P:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:  entry:
@@ -633,7 +634,7 @@ define void @fixpoint_changed(i32* %p) {
 ; TUNIT:       for.end:
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@fixpoint_changed
 ; CGSCC-SAME: (i32* nocapture nofree writeonly [[P:%.*]]) #[[ATTR4]] {
 ; CGSCC-NEXT:  entry:
@@ -684,12 +685,12 @@ for.end:
 
 ; Check we merge undef and a constant properly.
 define i8 @caller0() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@caller0
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i8 49
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@caller0
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    [[C:%.*]] = call noundef i8 @callee() #[[ATTR12]]
@@ -699,12 +700,12 @@ define i8 @caller0() {
   ret i8 %c
 }
 define i8 @caller1() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@caller1
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i8 49
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@caller1
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    [[C:%.*]] = call noundef i8 @callee() #[[ATTR12]]
@@ -714,12 +715,12 @@ define i8 @caller1() {
   ret i8 %c
 }
 define i8 @caller2() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@caller2
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i8 49
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@caller2
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    [[C:%.*]] = call noundef i8 @callee() #[[ATTR12]]
@@ -729,12 +730,12 @@ define i8 @caller2() {
   ret i8 %c
 }
 define i8 @caller_middle() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@caller_middle
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i8 49
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@caller_middle
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    [[C:%.*]] = call noundef i8 @callee() #[[ATTR12]]
@@ -744,12 +745,12 @@ define i8 @caller_middle() {
   ret i8 %c
 }
 define i8 @caller3() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@caller3
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i8 49
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@caller3
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    [[C:%.*]] = call noundef i8 @callee() #[[ATTR12]]
@@ -759,12 +760,12 @@ define i8 @caller3() {
   ret i8 %c
 }
 define i8 @caller4() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@caller4
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i8 49
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@caller4
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    [[C:%.*]] = call noundef i8 @callee() #[[ATTR12]]
@@ -774,7 +775,7 @@ define i8 @caller4() {
   ret i8 %c
 }
 define internal i8 @callee(i8 %a) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@callee
 ; CGSCC-SAME: () #[[ATTR1]] {
 ; CGSCC-NEXT:    ret i8 49
@@ -784,13 +785,13 @@ define internal i8 @callee(i8 %a) {
 }
 
 define void @user_as3() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@user_as3
 ; TUNIT-SAME: () #[[ATTR4]] {
 ; TUNIT-NEXT:    store i32 0, i32 addrspace(3)* @ConstAS3Ptr, align 4
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@user_as3
 ; CGSCC-SAME: () #[[ATTR6:[0-9]+]] {
 ; CGSCC-NEXT:    [[CALL:%.*]] = call fastcc align 4 i32 addrspace(3)* @const_ptr_return_as3() #[[ATTR12]]
@@ -802,13 +803,13 @@ define void @user_as3() {
   ret void
 }
 define void @user() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
 ; TUNIT-LABEL: define {{[^@]+}}@user
 ; TUNIT-SAME: () #[[ATTR4]] {
 ; TUNIT-NEXT:    store i32 0, i32* addrspacecast (i32 addrspace(3)* @ConstAS3Ptr to i32*), align 4
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(write)
 ; CGSCC-LABEL: define {{[^@]+}}@user
 ; CGSCC-SAME: () #[[ATTR6]] {
 ; CGSCC-NEXT:    [[CALL:%.*]] = call fastcc align 4 i32* @const_ptr_return() #[[ATTR12]]
@@ -822,12 +823,12 @@ define void @user() {
 
 
 define i1 @test_merge_with_undef_values_ptr(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@test_merge_with_undef_values_ptr
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i1 false
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@test_merge_with_undef_values_ptr
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    [[R1:%.*]] = call noundef i1 @undef_then_null(i1 [[C]]) #[[ATTR12]]
@@ -837,7 +838,7 @@ define i1 @test_merge_with_undef_values_ptr(i1 %c) {
   ret i1 %r1
 }
 define internal i1 @undef_then_null(i1 %c, i32* %i32Aptr, i32* %i32Bptr) {
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@undef_then_null
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    br i1 [[C]], label [[A:%.*]], label [[B:%.*]]
@@ -858,12 +859,12 @@ b:
 }
 
 define i1 @test_merge_with_undef_values(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@test_merge_with_undef_values
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i1 false
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@test_merge_with_undef_values
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    [[R1:%.*]] = call noundef i1 @undef_then_1(i1 [[C]]) #[[ATTR12]]
@@ -874,7 +875,7 @@ define i1 @test_merge_with_undef_values(i1 %c) {
 }
 define internal i1 @undef_then_1(i1 %c, i32 %i32A, i32 %i32B) {
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@undef_then_1
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    br i1 [[C]], label [[A:%.*]], label [[B:%.*]]
@@ -895,12 +896,12 @@ b:
 }
 
 define i32 @test_select(i32 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@test_select
 ; TUNIT-SAME: (i32 [[C:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i32 42
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@test_select
 ; CGSCC-SAME: (i32 [[C:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:    [[CALL:%.*]] = call noundef i32 @select() #[[ATTR12]]
@@ -911,7 +912,7 @@ define i32 @test_select(i32 %c) {
 }
 
 define internal i32 @select(i1 %a, i32 %b, i32 %c) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@select
 ; CGSCC-SAME: () #[[ATTR1]] {
 ; CGSCC-NEXT:    ret i32 42
@@ -921,7 +922,7 @@ define internal i32 @select(i1 %a, i32 %b, i32 %c) {
 }
 
 define i1 @icmp() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@icmp
 ; CHECK-SAME: () #[[ATTR1]] {
 ; CHECK-NEXT:    ret i1 true
@@ -973,14 +974,14 @@ define internal void @unknown_calle_arg_is_undef(void (i32)* %fn, i32 %arg) {
 @g = internal constant { [2 x i8*] } { [2 x i8*] [i8* bitcast (void (i8***)* @f1 to i8*), i8* bitcast (void (i1 (i8*)*)* @f2 to i8*)] }
 
 define internal void @f1(i8*** %a) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; TUNIT-LABEL: define {{[^@]+}}@f1
 ; TUNIT-SAME: (i8*** nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[A:%.*]]) #[[ATTR3]] {
 ; TUNIT-NEXT:  entry:
 ; TUNIT-NEXT:    store i8** getelementptr inbounds ({ [2 x i8*] }, { [2 x i8*] }* @g, i32 0, i32 0, i32 0), i8*** [[A]], align 8
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CGSCC-LABEL: define {{[^@]+}}@f1
 ; CGSCC-SAME: (i8*** nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[A:%.*]]) #[[ATTR4]] {
 ; CGSCC-NEXT:  entry:
@@ -1044,12 +1045,12 @@ entry:
 
 
 define i1 @test_cmp_null_after_cast() {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@test_cmp_null_after_cast
 ; TUNIT-SAME: () #[[ATTR1]] {
 ; TUNIT-NEXT:    ret i1 true
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@test_cmp_null_after_cast
 ; CGSCC-SAME: () #[[ATTR2]] {
 ; CGSCC-NEXT:    [[C:%.*]] = call noundef i1 @cmp_null_after_cast() #[[ATTR12]]
@@ -1059,7 +1060,7 @@ define i1 @test_cmp_null_after_cast() {
   ret i1 %c
 }
 define internal i1 @cmp_null_after_cast(i32 %a, i8 %b) {
-; CGSCC: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@cmp_null_after_cast
 ; CGSCC-SAME: () #[[ATTR1]] {
 ; CGSCC-NEXT:    ret i1 true
@@ -1145,7 +1146,7 @@ join:
 }
 
 define i1 @test_liveness(i1 %c) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@test_liveness
 ; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
 ; TUNIT-NEXT:  entry:
@@ -1157,7 +1158,7 @@ define i1 @test_liveness(i1 %c) {
 ; TUNIT-NEXT:    [[RC1:%.*]] = call i1 @ret(i1 noundef [[P]]) #[[ATTR9]]
 ; TUNIT-NEXT:    ret i1 [[RC1]]
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone willreturn
+; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@test_liveness
 ; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
 ; CGSCC-NEXT:  entry:
@@ -1180,7 +1181,7 @@ f:
 }
 
 define internal i1 @ret(i1 %c) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@ret
 ; CHECK-SAME: (i1 noundef [[C:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:  entry:
@@ -1228,7 +1229,7 @@ define internal i8 @memcpy_uses_store(i8 %arg) {
 ; TUNIT-NEXT:    [[SRC:%.*]] = alloca i8, align 1
 ; TUNIT-NEXT:    [[DST:%.*]] = alloca i8, align 1
 ; TUNIT-NEXT:    store i8 [[ARG]], i8* [[SRC]], align 1
-; TUNIT-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) [[DST]], i8* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[SRC]], i32 noundef 1, i1 noundef false) #[[ATTR10]]
+; TUNIT-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) [[DST]], i8* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[SRC]], i32 noundef 1, i1 noundef false) #[[ATTR11:[0-9]+]]
 ; TUNIT-NEXT:    [[L:%.*]] = load i8, i8* [[DST]], align 1
 ; TUNIT-NEXT:    ret i8 [[L]]
 ;
@@ -1238,7 +1239,7 @@ define internal i8 @memcpy_uses_store(i8 %arg) {
 ; CGSCC-NEXT:    [[SRC:%.*]] = alloca i8, align 1
 ; CGSCC-NEXT:    [[DST:%.*]] = alloca i8, align 1
 ; CGSCC-NEXT:    store i8 [[ARG]], i8* [[SRC]], align 1
-; CGSCC-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) [[DST]], i8* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[SRC]], i32 noundef 1, i1 noundef false) #[[ATTR13]]
+; CGSCC-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) [[DST]], i8* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[SRC]], i32 noundef 1, i1 noundef false) #[[ATTR14:[0-9]+]]
 ; CGSCC-NEXT:    [[L:%.*]] = load i8, i8* [[DST]], align 1
 ; CGSCC-NEXT:    ret i8 [[L]]
 ;
@@ -1254,13 +1255,13 @@ define i8 @memcpy_uses_store_caller(i8 %arg) {
 ; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn
 ; TUNIT-LABEL: define {{[^@]+}}@memcpy_uses_store_caller
 ; TUNIT-SAME: (i8 [[ARG:%.*]]) #[[ATTR2]] {
-; TUNIT-NEXT:    [[R:%.*]] = call i8 @memcpy_uses_store(i8 [[ARG]]) #[[ATTR12:[0-9]+]]
+; TUNIT-NEXT:    [[R:%.*]] = call i8 @memcpy_uses_store(i8 [[ARG]]) #[[ATTR9]]
 ; TUNIT-NEXT:    ret i8 [[R]]
 ;
 ; CGSCC: Function Attrs: nofree nosync nounwind willreturn
 ; CGSCC-LABEL: define {{[^@]+}}@memcpy_uses_store_caller
 ; CGSCC-SAME: (i8 [[ARG:%.*]]) #[[ATTR3]] {
-; CGSCC-NEXT:    [[R:%.*]] = call i8 @memcpy_uses_store(i8 [[ARG]]) #[[ATTR15:[0-9]+]]
+; CGSCC-NEXT:    [[R:%.*]] = call i8 @memcpy_uses_store(i8 [[ARG]]) #[[ATTR13]]
 ; CGSCC-NEXT:    ret i8 [[R]]
 ;
   %r = call i8 @memcpy_uses_store(i8 %arg)
@@ -1271,7 +1272,7 @@ define i8 @memcpy_uses_store_caller(i8 %arg) {
 declare i32 @speculatable() speculatable readnone
 
 define i32 @test_speculatable_expr() norecurse {
-; TUNIT: Function Attrs: norecurse nosync readnone
+; TUNIT: Function Attrs: norecurse nosync memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@test_speculatable_expr
 ; TUNIT-SAME: () #[[ATTR6:[0-9]+]] {
 ; TUNIT-NEXT:    [[STACK:%.*]] = alloca i32, align 4
@@ -1279,10 +1280,10 @@ define i32 @test_speculatable_expr() norecurse {
 ; TUNIT-NEXT:    [[PLUS1:%.*]] = add i32 [[SPEC_RESULT]], 1
 ; TUNIT-NEXT:    store i32 [[PLUS1]], i32* [[STACK]], align 4
 ; TUNIT-NEXT:    [[TMP1:%.*]] = load i32, i32* [[STACK]], align 4
-; TUNIT-NEXT:    [[RSPEC:%.*]] = call i32 @ret_speculatable_expr(i32 [[TMP1]]) #[[ATTR13:[0-9]+]]
+; TUNIT-NEXT:    [[RSPEC:%.*]] = call i32 @ret_speculatable_expr(i32 [[TMP1]]) #[[ATTR12:[0-9]+]]
 ; TUNIT-NEXT:    ret i32 [[RSPEC]]
 ;
-; CGSCC: Function Attrs: norecurse nosync readnone
+; CGSCC: Function Attrs: norecurse nosync memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@test_speculatable_expr
 ; CGSCC-SAME: () #[[ATTR9:[0-9]+]] {
 ; CGSCC-NEXT:    [[STACK:%.*]] = alloca i32, align 4
@@ -1301,7 +1302,7 @@ define i32 @test_speculatable_expr() norecurse {
 }
 
 define internal i32 @ret_speculatable_expr(i32* %mem, i32 %a2) {
-; TUNIT: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; TUNIT-LABEL: define {{[^@]+}}@ret_speculatable_expr
 ; TUNIT-SAME: (i32 [[TMP0:%.*]]) #[[ATTR7:[0-9]+]] {
 ; TUNIT-NEXT:    [[MEM_PRIV:%.*]] = alloca i32, align 4
@@ -1311,7 +1312,7 @@ define internal i32 @ret_speculatable_expr(i32* %mem, i32 %a2) {
 ; TUNIT-NEXT:    [[ADD:%.*]] = add i32 [[MUL]], 7
 ; TUNIT-NEXT:    ret i32 [[ADD]]
 ;
-; CGSCC: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
+; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CGSCC-LABEL: define {{[^@]+}}@ret_speculatable_expr
 ; CGSCC-SAME: (i32 [[TMP0:%.*]]) #[[ATTR10:[0-9]+]] {
 ; CGSCC-NEXT:    [[MEM_PRIV:%.*]] = alloca i32, align 4
@@ -1330,34 +1331,32 @@ define internal i32 @ret_speculatable_expr(i32* %mem, i32 %a2) {
 
 ;.
 ; TUNIT: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree nosync nounwind willreturn }
-; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
 ; TUNIT: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn }
-; TUNIT: attributes #[[ATTR3]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR5:[0-9]+]] = { readnone speculatable }
-; TUNIT: attributes #[[ATTR6]] = { norecurse nosync readnone }
-; TUNIT: attributes #[[ATTR7]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; TUNIT: attributes #[[ATTR8:[0-9]+]] = { argmemonly nocallback nofree nounwind willreturn }
-; TUNIT: attributes #[[ATTR9]] = { nofree nosync nounwind readnone willreturn }
+; TUNIT: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; TUNIT: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind willreturn memory(write) }
+; TUNIT: attributes #[[ATTR5:[0-9]+]] = { speculatable memory(none) }
+; TUNIT: attributes #[[ATTR6]] = { norecurse nosync memory(none) }
+; TUNIT: attributes #[[ATTR7]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; TUNIT: attributes #[[ATTR8:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
+; TUNIT: attributes #[[ATTR9]] = { nofree nosync nounwind willreturn }
 ; TUNIT: attributes #[[ATTR10]] = { willreturn }
-; TUNIT: attributes #[[ATTR11]] = { nofree nosync nounwind willreturn writeonly }
-; TUNIT: attributes #[[ATTR12]] = { nofree nosync nounwind willreturn }
-; TUNIT: attributes #[[ATTR13]] = { nosync nounwind readonly }
+; TUNIT: attributes #[[ATTR11]] = { willreturn memory(readwrite) }
+; TUNIT: attributes #[[ATTR12]] = { nosync nounwind }
 ;.
 ; CGSCC: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind readnone willreturn }
+; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn memory(none) }
 ; CGSCC: attributes #[[ATTR3]] = { nofree nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR4]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR5]] = { argmemonly nofree nosync nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR6]] = { nofree nosync nounwind willreturn writeonly }
+; CGSCC: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
+; CGSCC: attributes #[[ATTR5]] = { nofree nosync nounwind willreturn memory(argmem: write) }
+; CGSCC: attributes #[[ATTR6]] = { nofree nosync nounwind willreturn memory(write) }
 ; CGSCC: attributes #[[ATTR7]] = { nofree norecurse nosync nounwind willreturn }
-; CGSCC: attributes #[[ATTR8:[0-9]+]] = { readnone speculatable }
-; CGSCC: attributes #[[ATTR9]] = { norecurse nosync readnone }
-; CGSCC: attributes #[[ATTR10]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
-; CGSCC: attributes #[[ATTR11:[0-9]+]] = { argmemonly nocallback nofree nounwind willreturn }
-; CGSCC: attributes #[[ATTR12]] = { readnone willreturn }
-; CGSCC: attributes #[[ATTR13]] = { willreturn }
-; CGSCC: attributes #[[ATTR14]] = { nounwind willreturn writeonly }
-; CGSCC: attributes #[[ATTR15]] = { nounwind willreturn }
+; CGSCC: attributes #[[ATTR8:[0-9]+]] = { speculatable memory(none) }
+; CGSCC: attributes #[[ATTR9]] = { norecurse nosync memory(none) }
+; CGSCC: attributes #[[ATTR10]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
+; CGSCC: attributes #[[ATTR11:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
+; CGSCC: attributes #[[ATTR12]] = { willreturn }
+; CGSCC: attributes #[[ATTR13]] = { nounwind willreturn }
+; CGSCC: attributes #[[ATTR14]] = { willreturn memory(readwrite) }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/willreturn.ll b/llvm/test/Transforms/Attributor/willreturn.ll
index c448587423b19..76675f9c8ab68 100644
--- a/llvm/test/Transforms/Attributor/willreturn.ll
+++ b/llvm/test/Transforms/Attributor/willreturn.ll
@@ -10,7 +10,7 @@ target datalayout = "e-m:e-i54:64-f80:128-n8:16:32:64-S128"
 
 ; TEST 1 (positive case)
 define void @only_return() #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@only_return
 ; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    ret void
@@ -28,7 +28,7 @@ define void @only_return() #0 {
 
 ; FIXME: missing willreturn
 define i32 @fib(i32 %0) local_unnamed_addr #0 {
-; TUNIT: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; TUNIT: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; TUNIT-LABEL: define {{[^@]+}}@fib
 ; TUNIT-SAME: (i32 [[TMP0:%.*]]) local_unnamed_addr #[[ATTR1:[0-9]+]] {
 ; TUNIT-NEXT:    [[TMP2:%.*]] = icmp slt i32 [[TMP0]], 2
@@ -43,16 +43,16 @@ define i32 @fib(i32 %0) local_unnamed_addr #0 {
 ; TUNIT:       9:
 ; TUNIT-NEXT:    ret i32 [[TMP0]]
 ;
-; CGSCC: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; CGSCC: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; CGSCC-LABEL: define {{[^@]+}}@fib
 ; CGSCC-SAME: (i32 [[TMP0:%.*]]) local_unnamed_addr #[[ATTR1:[0-9]+]] {
 ; CGSCC-NEXT:    [[TMP2:%.*]] = icmp slt i32 [[TMP0]], 2
 ; CGSCC-NEXT:    br i1 [[TMP2]], label [[TMP9:%.*]], label [[TMP3:%.*]]
 ; CGSCC:       3:
 ; CGSCC-NEXT:    [[TMP4:%.*]] = add nsw i32 [[TMP0]], -1
-; CGSCC-NEXT:    [[TMP5:%.*]] = tail call i32 @fib(i32 [[TMP4]]) #[[ATTR19:[0-9]+]]
+; CGSCC-NEXT:    [[TMP5:%.*]] = tail call i32 @fib(i32 [[TMP4]]) #[[ATTR27:[0-9]+]]
 ; CGSCC-NEXT:    [[TMP6:%.*]] = add nsw i32 [[TMP0]], -2
-; CGSCC-NEXT:    [[TMP7:%.*]] = tail call i32 @fib(i32 [[TMP6]]) #[[ATTR19]]
+; CGSCC-NEXT:    [[TMP7:%.*]] = tail call i32 @fib(i32 [[TMP6]]) #[[ATTR27]]
 ; CGSCC-NEXT:    [[TMP8:%.*]] = add nsw i32 [[TMP7]], [[TMP5]]
 ; CGSCC-NEXT:    ret i32 [[TMP8]]
 ; CGSCC:       9:
@@ -84,7 +84,7 @@ define i32 @fib(i32 %0) local_unnamed_addr #0 {
 ; fact_maybe_not(-1) doesn't stop.
 
 define i32 @fact_maybe_not_halt(i32 %0) local_unnamed_addr #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@fact_maybe_not_halt
 ; CHECK-SAME: (i32 [[TMP0:%.*]]) local_unnamed_addr #[[ATTR2:[0-9]+]] {
 ; CHECK-NEXT:    [[TMP2:%.*]] = icmp eq i32 [[TMP0]], 0
@@ -132,7 +132,7 @@ define i32 @fact_maybe_not_halt(i32 %0) local_unnamed_addr #0 {
 ; }
 
 define i32 @fact_loop(i32 %0) local_unnamed_addr #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@fact_loop
 ; CHECK-SAME: (i32 [[TMP0:%.*]]) local_unnamed_addr #[[ATTR0]] {
 ; CHECK-NEXT:    [[TMP2:%.*]] = icmp slt i32 [[TMP0]], 1
@@ -176,16 +176,27 @@ define i32 @fact_loop(i32 %0) local_unnamed_addr #0 {
 declare void @sink() nounwind willreturn nosync nofree
 
 define void @mutual_recursion1(i1 %c) #0 {
-; CHECK: Function Attrs: nofree noinline nosync nounwind uwtable
-; CHECK-LABEL: define {{[^@]+}}@mutual_recursion1
-; CHECK-SAME: (i1 [[C:%.*]]) #[[ATTR4:[0-9]+]] {
-; CHECK-NEXT:    br i1 [[C]], label [[REC:%.*]], label [[END:%.*]]
-; CHECK:       rec:
-; CHECK-NEXT:    call void @sink() #[[ATTR12:[0-9]+]]
-; CHECK-NEXT:    call void @mutual_recursion2(i1 noundef [[C]]) #[[ATTR27:[0-9]+]]
-; CHECK-NEXT:    br label [[END]]
-; CHECK:       end:
-; CHECK-NEXT:    ret void
+; TUNIT: Function Attrs: nofree noinline nosync nounwind uwtable
+; TUNIT-LABEL: define {{[^@]+}}@mutual_recursion1
+; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR4:[0-9]+]] {
+; TUNIT-NEXT:    br i1 [[C]], label [[REC:%.*]], label [[END:%.*]]
+; TUNIT:       rec:
+; TUNIT-NEXT:    call void @sink() #[[ATTR12:[0-9]+]]
+; TUNIT-NEXT:    call void @mutual_recursion2(i1 noundef [[C]]) #[[ATTR26]]
+; TUNIT-NEXT:    br label [[END]]
+; TUNIT:       end:
+; TUNIT-NEXT:    ret void
+;
+; CGSCC: Function Attrs: nofree noinline nosync nounwind uwtable
+; CGSCC-LABEL: define {{[^@]+}}@mutual_recursion1
+; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR4:[0-9]+]] {
+; CGSCC-NEXT:    br i1 [[C]], label [[REC:%.*]], label [[END:%.*]]
+; CGSCC:       rec:
+; CGSCC-NEXT:    call void @sink() #[[ATTR12:[0-9]+]]
+; CGSCC-NEXT:    call void @mutual_recursion2(i1 noundef [[C]]) #[[ATTR27]]
+; CGSCC-NEXT:    br label [[END]]
+; CGSCC:       end:
+; CGSCC-NEXT:    ret void
 ;
   br i1 %c, label %rec, label %end
 rec:
@@ -198,11 +209,17 @@ end:
 
 
 define void @mutual_recursion2(i1 %c) #0 {
-; CHECK: Function Attrs: nofree noinline nosync nounwind uwtable
-; CHECK-LABEL: define {{[^@]+}}@mutual_recursion2
-; CHECK-SAME: (i1 [[C:%.*]]) #[[ATTR4]] {
-; CHECK-NEXT:    call void @mutual_recursion1(i1 [[C]]) #[[ATTR27]]
-; CHECK-NEXT:    ret void
+; TUNIT: Function Attrs: nofree noinline nosync nounwind uwtable
+; TUNIT-LABEL: define {{[^@]+}}@mutual_recursion2
+; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR4]] {
+; TUNIT-NEXT:    call void @mutual_recursion1(i1 [[C]]) #[[ATTR26]]
+; TUNIT-NEXT:    ret void
+;
+; CGSCC: Function Attrs: nofree noinline nosync nounwind uwtable
+; CGSCC-LABEL: define {{[^@]+}}@mutual_recursion2
+; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR4]] {
+; CGSCC-NEXT:    call void @mutual_recursion1(i1 [[C]]) #[[ATTR27]]
+; CGSCC-NEXT:    ret void
 ;
   call void @mutual_recursion1(i1 %c)
   ret void
@@ -277,12 +294,12 @@ define void @conditional_exit(i32 %0, i32* nocapture readonly %1) local_unnamed_
 
 ; TEST 6 (positive case)
 ; Call intrinsic function
-; CHECK: Function Attrs: nocallback nofree nosync nounwind readnone speculatable willreturn
+; CHECK: Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
 ; CHECK-NEXT: declare float @llvm.floor.f32(float)
 declare float @llvm.floor.f32(float)
 
 define void @call_floor(float %a) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@call_floor
 ; CHECK-SAME: (float [[A:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    ret void
@@ -292,11 +309,17 @@ define void @call_floor(float %a) #0 {
 }
 
 define float @call_floor2(float %a) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
-; CHECK-LABEL: define {{[^@]+}}@call_floor2
-; CHECK-SAME: (float [[A:%.*]]) #[[ATTR0]] {
-; CHECK-NEXT:    [[C:%.*]] = tail call float @llvm.floor.f32(float [[A]]) #[[ATTR28:[0-9]+]]
-; CHECK-NEXT:    ret float [[C]]
+; TUNIT: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
+; TUNIT-LABEL: define {{[^@]+}}@call_floor2
+; TUNIT-SAME: (float [[A:%.*]]) #[[ATTR0]] {
+; TUNIT-NEXT:    [[C:%.*]] = tail call float @llvm.floor.f32(float [[A]]) #[[ATTR27:[0-9]+]]
+; TUNIT-NEXT:    ret float [[C]]
+;
+; CGSCC: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
+; CGSCC-LABEL: define {{[^@]+}}@call_floor2
+; CGSCC-SAME: (float [[A:%.*]]) #[[ATTR0]] {
+; CGSCC-NEXT:    [[C:%.*]] = tail call float @llvm.floor.f32(float [[A]]) #[[ATTR28:[0-9]+]]
+; CGSCC-NEXT:    ret float [[C]]
 ;
   %c = tail call float @llvm.floor.f32(float %a)
   ret float %c
@@ -312,11 +335,17 @@ define float @call_floor2(float %a) #0 {
 declare void @maybe_noreturn() #0
 
 define void @call_maybe_noreturn() #0 {
-; CHECK: Function Attrs: noinline nounwind uwtable
-; CHECK-LABEL: define {{[^@]+}}@call_maybe_noreturn
-; CHECK-SAME: () #[[ATTR7]] {
-; CHECK-NEXT:    tail call void @maybe_noreturn() #[[ATTR29:[0-9]+]]
-; CHECK-NEXT:    ret void
+; TUNIT: Function Attrs: noinline nounwind uwtable
+; TUNIT-LABEL: define {{[^@]+}}@call_maybe_noreturn
+; TUNIT-SAME: () #[[ATTR7]] {
+; TUNIT-NEXT:    tail call void @maybe_noreturn() #[[ATTR28:[0-9]+]]
+; TUNIT-NEXT:    ret void
+;
+; CGSCC: Function Attrs: noinline nounwind uwtable
+; CGSCC-LABEL: define {{[^@]+}}@call_maybe_noreturn
+; CGSCC-SAME: () #[[ATTR7]] {
+; CGSCC-NEXT:    tail call void @maybe_noreturn() #[[ATTR29:[0-9]+]]
+; CGSCC-NEXT:    ret void
 ;
   tail call void @maybe_noreturn()
   ret void
@@ -331,11 +360,17 @@ define void @call_maybe_noreturn() #0 {
 declare void @will_return() willreturn norecurse
 
 define void @f1() #0 {
-; CHECK: Function Attrs: noinline nounwind willreturn uwtable
-; CHECK-LABEL: define {{[^@]+}}@f1
-; CHECK-SAME: () #[[ATTR10:[0-9]+]] {
-; CHECK-NEXT:    tail call void @will_return() #[[ATTR30:[0-9]+]]
-; CHECK-NEXT:    ret void
+; TUNIT: Function Attrs: noinline nounwind willreturn uwtable
+; TUNIT-LABEL: define {{[^@]+}}@f1
+; TUNIT-SAME: () #[[ATTR10:[0-9]+]] {
+; TUNIT-NEXT:    tail call void @will_return() #[[ATTR27]]
+; TUNIT-NEXT:    ret void
+;
+; CGSCC: Function Attrs: noinline nounwind willreturn uwtable
+; CGSCC-LABEL: define {{[^@]+}}@f1
+; CGSCC-SAME: () #[[ATTR10:[0-9]+]] {
+; CGSCC-NEXT:    tail call void @will_return() #[[ATTR28]]
+; CGSCC-NEXT:    ret void
 ;
   tail call void @will_return()
   ret void
@@ -344,8 +379,8 @@ define void @f1() #0 {
 define void @f2() #0 {
 ; CHECK: Function Attrs: noinline nounwind willreturn uwtable
 ; CHECK-LABEL: define {{[^@]+}}@f2
-; CHECK-SAME: () #[[ATTR10]] {
-; CHECK-NEXT:    tail call void @f1() #[[ATTR12]]
+; CHECK-SAME: () #[[ATTR10:[0-9]+]] {
+; CHECK-NEXT:    tail call void @f1() #[[ATTR12:[0-9]+]]
 ; CHECK-NEXT:    ret void
 ;
   tail call void @f1()
@@ -384,17 +419,29 @@ label2:
 declare i1 @maybe_raise_exception() #1 willreturn
 
 define void @invoke_test() personality i32 (...)* @__gxx_personality_v0 {
-; CHECK: Function Attrs: nounwind willreturn
-; CHECK-LABEL: define {{[^@]+}}@invoke_test
-; CHECK-SAME: () #[[ATTR12]] personality i32 (...)* @__gxx_personality_v0 {
-; CHECK-NEXT:    [[TMP1:%.*]] = invoke i1 @maybe_raise_exception() #[[ATTR30]]
-; CHECK-NEXT:    to label [[N:%.*]] unwind label [[F:%.*]]
-; CHECK:       N:
-; CHECK-NEXT:    ret void
-; CHECK:       F:
-; CHECK-NEXT:    [[VAL:%.*]] = landingpad { i8*, i32 }
-; CHECK-NEXT:    catch i8* null
-; CHECK-NEXT:    ret void
+; TUNIT: Function Attrs: nounwind willreturn
+; TUNIT-LABEL: define {{[^@]+}}@invoke_test
+; TUNIT-SAME: () #[[ATTR12]] personality i32 (...)* @__gxx_personality_v0 {
+; TUNIT-NEXT:    [[TMP1:%.*]] = invoke i1 @maybe_raise_exception() #[[ATTR27]]
+; TUNIT-NEXT:    to label [[N:%.*]] unwind label [[F:%.*]]
+; TUNIT:       N:
+; TUNIT-NEXT:    ret void
+; TUNIT:       F:
+; TUNIT-NEXT:    [[VAL:%.*]] = landingpad { i8*, i32 }
+; TUNIT-NEXT:    catch i8* null
+; TUNIT-NEXT:    ret void
+;
+; CGSCC: Function Attrs: nounwind willreturn
+; CGSCC-LABEL: define {{[^@]+}}@invoke_test
+; CGSCC-SAME: () #[[ATTR12]] personality i32 (...)* @__gxx_personality_v0 {
+; CGSCC-NEXT:    [[TMP1:%.*]] = invoke i1 @maybe_raise_exception() #[[ATTR28]]
+; CGSCC-NEXT:    to label [[N:%.*]] unwind label [[F:%.*]]
+; CGSCC:       N:
+; CGSCC-NEXT:    ret void
+; CGSCC:       F:
+; CGSCC-NEXT:    [[VAL:%.*]] = landingpad { i8*, i32 }
+; CGSCC-NEXT:    catch i8* null
+; CGSCC-NEXT:    ret void
 ;
   invoke i1 @maybe_raise_exception()
   to label %N unwind label %F
@@ -420,7 +467,7 @@ declare i32 @__gxx_personality_v0(...)
 ; }
 
 define i32 @loop_constant_trip_count(i32* nocapture readonly %0) #0 {
-; CHECK: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind readonly willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(argmem: read) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@loop_constant_trip_count
 ; CHECK-SAME: (i32* nocapture nofree nonnull readonly dereferenceable(4) [[TMP0:%.*]]) #[[ATTR13:[0-9]+]] {
 ; CHECK-NEXT:    br label [[TMP3:%.*]]
@@ -464,7 +511,7 @@ define i32 @loop_constant_trip_count(i32* nocapture readonly %0) #0 {
 ;     return ans;
 ; }
 define i32 @loop_trip_count_unbound(i32 %0, i32 %1, i32* nocapture readonly %2, i32 %3) local_unnamed_addr #0 {
-; CHECK: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind readonly uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind memory(argmem: read) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@loop_trip_count_unbound
 ; CHECK-SAME: (i32 [[TMP0:%.*]], i32 [[TMP1:%.*]], i32* nocapture nofree readonly [[TMP2:%.*]], i32 [[TMP3:%.*]]) local_unnamed_addr #[[ATTR14:[0-9]+]] {
 ; CHECK-NEXT:    [[TMP5:%.*]] = icmp eq i32 [[TMP0]], [[TMP1]]
@@ -515,7 +562,7 @@ define i32 @loop_trip_count_unbound(i32 %0, i32 %1, i32* nocapture readonly %2,
 
 
 define i32 @loop_trip_dec(i32 %0, i32* nocapture readonly %1) local_unnamed_addr #0 {
-; CHECK: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind readonly willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(argmem: read) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@loop_trip_dec
 ; CHECK-SAME: (i32 [[TMP0:%.*]], i32* nocapture nofree readonly [[TMP1:%.*]]) local_unnamed_addr #[[ATTR13]] {
 ; CHECK-NEXT:    [[TMP3:%.*]] = icmp sgt i32 [[TMP0]], -1
@@ -562,7 +609,7 @@ define i32 @loop_trip_dec(i32 %0, i32* nocapture readonly %1) local_unnamed_addr
 ; multiple return
 
 define i32 @multiple_return(i32 %a) #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@multiple_return
 ; CHECK-SAME: (i32 [[A:%.*]]) #[[ATTR0]] {
 ; CHECK-NEXT:    [[B:%.*]] = icmp eq i32 [[A]], 0
@@ -586,13 +633,21 @@ f:
 
 ; 15.1 (positive case)
 define void @unreachable_exit_positive1() #0 {
-; CHECK: Function Attrs: noinline nounwind willreturn uwtable
-; CHECK-LABEL: define {{[^@]+}}@unreachable_exit_positive1
-; CHECK-SAME: () #[[ATTR10]] {
-; CHECK-NEXT:    tail call void @will_return() #[[ATTR30]]
-; CHECK-NEXT:    ret void
-; CHECK:       unreachable_label:
-; CHECK-NEXT:    unreachable
+; TUNIT: Function Attrs: noinline nounwind willreturn uwtable
+; TUNIT-LABEL: define {{[^@]+}}@unreachable_exit_positive1
+; TUNIT-SAME: () #[[ATTR10]] {
+; TUNIT-NEXT:    tail call void @will_return() #[[ATTR27]]
+; TUNIT-NEXT:    ret void
+; TUNIT:       unreachable_label:
+; TUNIT-NEXT:    unreachable
+;
+; CGSCC: Function Attrs: noinline nounwind willreturn uwtable
+; CGSCC-LABEL: define {{[^@]+}}@unreachable_exit_positive1
+; CGSCC-SAME: () #[[ATTR10]] {
+; CGSCC-NEXT:    tail call void @will_return() #[[ATTR28]]
+; CGSCC-NEXT:    ret void
+; CGSCC:       unreachable_label:
+; CGSCC-NEXT:    unreachable
 ;
   tail call void @will_return()
   ret void
@@ -603,7 +658,7 @@ unreachable_label:
 }
 
 define i32 @unreachable_exit_positive2(i32) local_unnamed_addr #0 {
-; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; CHECK: Function Attrs: nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@unreachable_exit_positive2
 ; CHECK-SAME: (i32 [[TMP0:%.*]]) local_unnamed_addr #[[ATTR0]] {
 ; CHECK-NEXT:    [[TMP2:%.*]] = icmp slt i32 [[TMP0]], 1
@@ -662,7 +717,7 @@ unreachable_label:
 }
 
 define void @unreachable_exit_negative2() #0 {
-; CHECK: Function Attrs: nofree noinline norecurse noreturn nosync nounwind readnone uwtable
+; CHECK: Function Attrs: nofree noinline norecurse noreturn nosync nounwind memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@unreachable_exit_negative2
 ; CHECK-SAME: () #[[ATTR15:[0-9]+]] {
 ; CHECK-NEXT:    br label [[L1:%.*]]
@@ -711,7 +766,7 @@ define void @call_longjmp(i8* nocapture readnone %0) local_unnamed_addr #0 {
 ; }
 
 define i32 @infinite_loop_inside_bounded_loop(i32 %n) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone
+; CHECK: Function Attrs: nofree norecurse nosync nounwind memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@infinite_loop_inside_bounded_loop
 ; CHECK-SAME: (i32 [[N:%.*]]) #[[ATTR17:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -772,7 +827,7 @@ for.end:                                          ; preds = %for.cond.cleanup
 ; }
 
 define i32 @bounded_nested_loops(i32 %n) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@bounded_nested_loops
 ; CHECK-SAME: (i32 [[N:%.*]]) #[[ATTR18:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -849,7 +904,7 @@ for.end:                                          ; preds = %for.cond.cleanup
 ; }
 
 define i32 @bounded_loop_inside_unbounded_loop(i32 %n) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone
+; CHECK: Function Attrs: nofree norecurse nosync nounwind memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@bounded_loop_inside_unbounded_loop
 ; CHECK-SAME: (i32 [[N:%.*]]) #[[ATTR17]] {
 ; CHECK-NEXT:  entry:
@@ -933,7 +988,7 @@ while.end:                                        ; preds = %while.cond
 ; }
 
 define i32 @nested_unbounded_loops(i32 %n) {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone
+; CHECK: Function Attrs: nofree norecurse nosync nounwind memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@nested_unbounded_loops
 ; CHECK-SAME: (i32 [[N:%.*]]) #[[ATTR17]] {
 ; CHECK-NEXT:  entry:
@@ -1023,7 +1078,7 @@ while.end11:                                      ; preds = %while.cond
 ;    }
 
 define void @non_loop_cycle(i32 %n) {
-; TUNIT: Function Attrs: nofree norecurse nosync nounwind readnone
+; TUNIT: Function Attrs: nofree norecurse nosync nounwind memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@non_loop_cycle
 ; TUNIT-SAME: (i32 [[N:%.*]]) #[[ATTR17]] {
 ; TUNIT-NEXT:  entry:
@@ -1053,9 +1108,9 @@ define void @non_loop_cycle(i32 %n) {
 ; TUNIT:       exit:
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: nofree nosync nounwind readnone
+; CGSCC: Function Attrs: nofree nosync nounwind memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@non_loop_cycle
-; CGSCC-SAME: (i32 [[N:%.*]]) #[[ATTR19]] {
+; CGSCC-SAME: (i32 [[N:%.*]]) #[[ATTR19:[0-9]+]] {
 ; CGSCC-NEXT:  entry:
 ; CGSCC-NEXT:    [[CALL:%.*]] = call i32 @fact_loop(i32 [[N]])
 ; CGSCC-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[CALL]], 5
@@ -1143,29 +1198,29 @@ define void @willreturn_mustprogress_caller_1() mustprogress {
   ret void
 }
 define void @willreturn_mustprogress_caller_2() mustprogress {
-; TUNIT: Function Attrs: mustprogress readonly willreturn
+; TUNIT: Function Attrs: mustprogress willreturn memory(read)
 ; TUNIT-LABEL: define {{[^@]+}}@willreturn_mustprogress_caller_2
 ; TUNIT-SAME: () #[[ATTR23:[0-9]+]] {
-; TUNIT-NEXT:    call void @readonly() #[[ATTR19:[0-9]+]]
+; TUNIT-NEXT:    call void @readonly()
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: mustprogress readonly willreturn
+; CGSCC: Function Attrs: mustprogress willreturn memory(read)
 ; CGSCC-LABEL: define {{[^@]+}}@willreturn_mustprogress_caller_2
 ; CGSCC-SAME: () #[[ATTR24:[0-9]+]] {
-; CGSCC-NEXT:    call void @readonly() #[[ATTR20:[0-9]+]]
+; CGSCC-NEXT:    call void @readonly()
 ; CGSCC-NEXT:    ret void
 ;
   call void @readonly()
   ret void
 }
 define void @willreturn_mustprogress_caller_3() mustprogress {
-; TUNIT: Function Attrs: mustprogress nosync readnone willreturn
+; TUNIT: Function Attrs: mustprogress nosync willreturn memory(none)
 ; TUNIT-LABEL: define {{[^@]+}}@willreturn_mustprogress_caller_3
 ; TUNIT-SAME: () #[[ATTR24:[0-9]+]] {
 ; TUNIT-NEXT:    call void @readnone()
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: mustprogress nosync readnone willreturn
+; CGSCC: Function Attrs: mustprogress nosync willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@willreturn_mustprogress_caller_3
 ; CGSCC-SAME: () #[[ATTR25:[0-9]+]] {
 ; CGSCC-NEXT:    call void @readnone()
@@ -1183,16 +1238,16 @@ define void @willreturn_mustprogress_callee_1() {
   ret void
 }
 define void @willreturn_mustprogress_callee_2() {
-; TUNIT: Function Attrs: readonly willreturn
+; TUNIT: Function Attrs: willreturn memory(read)
 ; TUNIT-LABEL: define {{[^@]+}}@willreturn_mustprogress_callee_2
 ; TUNIT-SAME: () #[[ATTR25:[0-9]+]] {
-; TUNIT-NEXT:    call void @readonly_mustprogress() #[[ATTR25]]
+; TUNIT-NEXT:    call void @readonly_mustprogress() #[[ATTR27]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: readonly willreturn
+; CGSCC: Function Attrs: willreturn memory(read)
 ; CGSCC-LABEL: define {{[^@]+}}@willreturn_mustprogress_callee_2
 ; CGSCC-SAME: () #[[ATTR26:[0-9]+]] {
-; CGSCC-NEXT:    call void @readonly_mustprogress() #[[ATTR26]]
+; CGSCC-NEXT:    call void @readonly_mustprogress() #[[ATTR28]]
 ; CGSCC-NEXT:    ret void
 ;
   call void @readonly_mustprogress()
@@ -1207,16 +1262,16 @@ define void @willreturn_mustprogress_callee_3() {
   ret void
 }
 define void @willreturn_mustprogress_callee_4() {
-; TUNIT: Function Attrs: readonly willreturn
+; TUNIT: Function Attrs: willreturn memory(read)
 ; TUNIT-LABEL: define {{[^@]+}}@willreturn_mustprogress_callee_4
 ; TUNIT-SAME: () #[[ATTR25]] {
-; TUNIT-NEXT:    call void @willreturn_mustprogress_callee_2() #[[ATTR25]]
+; TUNIT-NEXT:    call void @willreturn_mustprogress_callee_2() #[[ATTR27]]
 ; TUNIT-NEXT:    ret void
 ;
-; CGSCC: Function Attrs: readonly willreturn
+; CGSCC: Function Attrs: willreturn memory(read)
 ; CGSCC-LABEL: define {{[^@]+}}@willreturn_mustprogress_callee_4
 ; CGSCC-SAME: () #[[ATTR26]] {
-; CGSCC-NEXT:    call void @willreturn_mustprogress_callee_2() #[[ATTR26]]
+; CGSCC-NEXT:    call void @willreturn_mustprogress_callee_2() #[[ATTR28]]
 ; CGSCC-NEXT:    ret void
 ;
   call void @willreturn_mustprogress_callee_2()
@@ -1226,67 +1281,64 @@ define void @willreturn_mustprogress_callee_4() {
 attributes #0 = { nounwind uwtable noinline }
 attributes #1 = { uwtable noinline }
 ;.
-; TUNIT: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind readnone willreturn uwtable }
-; TUNIT: attributes #[[ATTR1]] = { nofree noinline nosync nounwind readnone uwtable }
-; TUNIT: attributes #[[ATTR2]] = { nofree noinline norecurse nosync nounwind readnone uwtable }
+; TUNIT: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable }
+; TUNIT: attributes #[[ATTR1]] = { nofree noinline nosync nounwind memory(none) uwtable }
+; TUNIT: attributes #[[ATTR2]] = { nofree noinline norecurse nosync nounwind memory(none) uwtable }
 ; TUNIT: attributes #[[ATTR3:[0-9]+]] = { nofree nosync nounwind willreturn }
 ; TUNIT: attributes #[[ATTR4]] = { nofree noinline nosync nounwind uwtable }
 ; TUNIT: attributes #[[ATTR5]] = { noreturn }
 ; TUNIT: attributes #[[ATTR6]] = { noinline noreturn nounwind uwtable }
 ; TUNIT: attributes #[[ATTR7]] = { noinline nounwind uwtable }
-; TUNIT: attributes #[[ATTR8:[0-9]+]] = { nocallback nofree nosync nounwind readnone speculatable willreturn }
+; TUNIT: attributes #[[ATTR8:[0-9]+]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
 ; TUNIT: attributes #[[ATTR9:[0-9]+]] = { norecurse willreturn }
 ; TUNIT: attributes #[[ATTR10]] = { noinline nounwind willreturn uwtable }
 ; TUNIT: attributes #[[ATTR11:[0-9]+]] = { noinline willreturn uwtable }
 ; TUNIT: attributes #[[ATTR12]] = { nounwind willreturn }
-; TUNIT: attributes #[[ATTR13]] = { argmemonly nofree noinline norecurse nosync nounwind readonly willreturn uwtable }
-; TUNIT: attributes #[[ATTR14]] = { argmemonly nofree noinline norecurse nosync nounwind readonly uwtable }
-; TUNIT: attributes #[[ATTR15]] = { nofree noinline norecurse noreturn nosync nounwind readnone uwtable }
+; TUNIT: attributes #[[ATTR13]] = { nofree noinline norecurse nosync nounwind willreturn memory(argmem: read) uwtable }
+; TUNIT: attributes #[[ATTR14]] = { nofree noinline norecurse nosync nounwind memory(argmem: read) uwtable }
+; TUNIT: attributes #[[ATTR15]] = { nofree noinline norecurse noreturn nosync nounwind memory(none) uwtable }
 ; TUNIT: attributes #[[ATTR16:[0-9]+]] = { noreturn nounwind }
-; TUNIT: attributes #[[ATTR17]] = { nofree norecurse nosync nounwind readnone }
-; TUNIT: attributes #[[ATTR18]] = { nofree norecurse nosync nounwind readnone willreturn }
-; TUNIT: attributes #[[ATTR19]] = { readonly }
-; TUNIT: attributes #[[ATTR20:[0-9]+]] = { readnone }
+; TUNIT: attributes #[[ATTR17]] = { nofree norecurse nosync nounwind memory(none) }
+; TUNIT: attributes #[[ATTR18]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; TUNIT: attributes #[[ATTR19:[0-9]+]] = { memory(read) }
+; TUNIT: attributes #[[ATTR20:[0-9]+]] = { memory(none) }
 ; TUNIT: attributes #[[ATTR21]] = { mustprogress }
-; TUNIT: attributes #[[ATTR22:[0-9]+]] = { mustprogress readonly }
-; TUNIT: attributes #[[ATTR23]] = { mustprogress readonly willreturn }
-; TUNIT: attributes #[[ATTR24]] = { mustprogress nosync readnone willreturn }
-; TUNIT: attributes #[[ATTR25]] = { readonly willreturn }
-; TUNIT: attributes #[[ATTR26]] = { nofree nosync nounwind readnone }
-; TUNIT: attributes #[[ATTR27]] = { nofree nosync nounwind }
-; TUNIT: attributes #[[ATTR28]] = { readnone willreturn }
-; TUNIT: attributes #[[ATTR29]] = { nounwind }
-; TUNIT: attributes #[[ATTR30]] = { willreturn }
+; TUNIT: attributes #[[ATTR22:[0-9]+]] = { mustprogress memory(read) }
+; TUNIT: attributes #[[ATTR23]] = { mustprogress willreturn memory(read) }
+; TUNIT: attributes #[[ATTR24]] = { mustprogress nosync willreturn memory(none) }
+; TUNIT: attributes #[[ATTR25]] = { willreturn memory(read) }
+; TUNIT: attributes #[[ATTR26]] = { nofree nosync nounwind }
+; TUNIT: attributes #[[ATTR27]] = { willreturn }
+; TUNIT: attributes #[[ATTR28]] = { nounwind }
 ;.
-; CGSCC: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind readnone willreturn uwtable }
-; CGSCC: attributes #[[ATTR1]] = { nofree noinline nosync nounwind readnone uwtable }
-; CGSCC: attributes #[[ATTR2]] = { nofree noinline norecurse nosync nounwind readnone uwtable }
+; CGSCC: attributes #[[ATTR0]] = { nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable }
+; CGSCC: attributes #[[ATTR1]] = { nofree noinline nosync nounwind memory(none) uwtable }
+; CGSCC: attributes #[[ATTR2]] = { nofree noinline norecurse nosync nounwind memory(none) uwtable }
 ; CGSCC: attributes #[[ATTR3:[0-9]+]] = { nofree nosync nounwind willreturn }
 ; CGSCC: attributes #[[ATTR4]] = { nofree noinline nosync nounwind uwtable }
 ; CGSCC: attributes #[[ATTR5]] = { noreturn }
 ; CGSCC: attributes #[[ATTR6]] = { noinline noreturn nounwind uwtable }
 ; CGSCC: attributes #[[ATTR7]] = { noinline nounwind uwtable }
-; CGSCC: attributes #[[ATTR8:[0-9]+]] = { nocallback nofree nosync nounwind readnone speculatable willreturn }
+; CGSCC: attributes #[[ATTR8:[0-9]+]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
 ; CGSCC: attributes #[[ATTR9:[0-9]+]] = { norecurse willreturn }
 ; CGSCC: attributes #[[ATTR10]] = { noinline nounwind willreturn uwtable }
 ; CGSCC: attributes #[[ATTR11:[0-9]+]] = { noinline willreturn uwtable }
 ; CGSCC: attributes #[[ATTR12]] = { nounwind willreturn }
-; CGSCC: attributes #[[ATTR13]] = { argmemonly nofree noinline norecurse nosync nounwind readonly willreturn uwtable }
-; CGSCC: attributes #[[ATTR14]] = { argmemonly nofree noinline norecurse nosync nounwind readonly uwtable }
-; CGSCC: attributes #[[ATTR15]] = { nofree noinline norecurse noreturn nosync nounwind readnone uwtable }
+; CGSCC: attributes #[[ATTR13]] = { nofree noinline norecurse nosync nounwind willreturn memory(argmem: read) uwtable }
+; CGSCC: attributes #[[ATTR14]] = { nofree noinline norecurse nosync nounwind memory(argmem: read) uwtable }
+; CGSCC: attributes #[[ATTR15]] = { nofree noinline norecurse noreturn nosync nounwind memory(none) uwtable }
 ; CGSCC: attributes #[[ATTR16:[0-9]+]] = { noreturn nounwind }
-; CGSCC: attributes #[[ATTR17]] = { nofree norecurse nosync nounwind readnone }
-; CGSCC: attributes #[[ATTR18]] = { nofree norecurse nosync nounwind readnone willreturn }
-; CGSCC: attributes #[[ATTR19]] = { nofree nosync nounwind readnone }
-; CGSCC: attributes #[[ATTR20]] = { readonly }
-; CGSCC: attributes #[[ATTR21:[0-9]+]] = { readnone }
+; CGSCC: attributes #[[ATTR17]] = { nofree norecurse nosync nounwind memory(none) }
+; CGSCC: attributes #[[ATTR18]] = { nofree norecurse nosync nounwind willreturn memory(none) }
+; CGSCC: attributes #[[ATTR19]] = { nofree nosync nounwind memory(none) }
+; CGSCC: attributes #[[ATTR20:[0-9]+]] = { memory(read) }
+; CGSCC: attributes #[[ATTR21:[0-9]+]] = { memory(none) }
 ; CGSCC: attributes #[[ATTR22]] = { mustprogress }
-; CGSCC: attributes #[[ATTR23:[0-9]+]] = { mustprogress readonly }
-; CGSCC: attributes #[[ATTR24]] = { mustprogress readonly willreturn }
-; CGSCC: attributes #[[ATTR25]] = { mustprogress nosync readnone willreturn }
-; CGSCC: attributes #[[ATTR26]] = { readonly willreturn }
+; CGSCC: attributes #[[ATTR23:[0-9]+]] = { mustprogress memory(read) }
+; CGSCC: attributes #[[ATTR24]] = { mustprogress willreturn memory(read) }
+; CGSCC: attributes #[[ATTR25]] = { mustprogress nosync willreturn memory(none) }
+; CGSCC: attributes #[[ATTR26]] = { willreturn memory(read) }
 ; CGSCC: attributes #[[ATTR27]] = { nofree nosync nounwind }
-; CGSCC: attributes #[[ATTR28]] = { readnone willreturn }
+; CGSCC: attributes #[[ATTR28]] = { willreturn }
 ; CGSCC: attributes #[[ATTR29]] = { nounwind }
-; CGSCC: attributes #[[ATTR30]] = { willreturn }
 ;.

diff  --git a/llvm/test/Transforms/Attributor/wrapper.ll b/llvm/test/Transforms/Attributor/wrapper.ll
index 85bf78a69d2ea..34af977467961 100644
--- a/llvm/test/Transforms/Attributor/wrapper.ll
+++ b/llvm/test/Transforms/Attributor/wrapper.ll
@@ -8,7 +8,7 @@
 ; CHECK: ret
 ;
 ; Check the original function, which is wrapped and becomes anonymous
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK: define internal noundef i32 @0()
 ; CHECK: ret i32 1
 define linkonce i32 @inner1() {
@@ -35,7 +35,7 @@ entry:
 ; CHECK: tail call i32 @1(i32 %a, i32 %b)
 ; CHECK: ret
 ;
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK: define internal i32 @1(i32 %a, i32 %b)
 ; CHECK: %c = add i32 %a, %b
 ; CHECK: ret i32 %c

diff  --git a/llvm/test/Transforms/Coroutines/coro-readnone-02.ll b/llvm/test/Transforms/Coroutines/coro-readnone-02.ll
index eede209fbdd0f..c96377fd1c6d8 100644
--- a/llvm/test/Transforms/Coroutines/coro-readnone-02.ll
+++ b/llvm/test/Transforms/Coroutines/coro-readnone-02.ll
@@ -50,7 +50,7 @@ suspend:
 ; CHECK_SPLITTED-NEXT:    call void @nop()
 ; CHECK_SPLITTED-NEXT:    call void @print_same()
 ;
-; CHECK_SPLITTED: attributes #[[ATTR_NUM]] = { readnone }
+; CHECK_SPLITTED: attributes #[[ATTR_NUM]] = { memory(none) }
 ;
 ; CHECK_UNSPLITTED-LABEL: @f(
 ; CHECK_UNSPLITTED: br i1 %cmp, label %same, label %
diff 

diff  --git a/llvm/test/Transforms/DeadArgElim/2010-04-30-DbgInfo.ll b/llvm/test/Transforms/DeadArgElim/2010-04-30-DbgInfo.ll
index 047545a8115a1..9ff103cdda8f9 100644
--- a/llvm/test/Transforms/DeadArgElim/2010-04-30-DbgInfo.ll
+++ b/llvm/test/Transforms/DeadArgElim/2010-04-30-DbgInfo.ll
@@ -45,7 +45,7 @@ bb2:                                              ; preds = %bb1, %bb
 declare void @llvm.dbg.value(metadata, metadata, metadata) nounwind readnone
 
 ; CHECK: attributes #0 = { nounwind ssp }
-; CHECK: attributes #1 = { nocallback nofree nosync nounwind readnone speculatable willreturn }
+; CHECK: attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
 ; CHECK: attributes #2 = { noinline nounwind ssp }
 ; CHECK: attributes [[NUW]] = { nounwind }
 

diff  --git a/llvm/test/Transforms/FunctionAttrs/2008-09-03-Mutual.ll b/llvm/test/Transforms/FunctionAttrs/2008-09-03-Mutual.ll
index 13d7682fcf877..23d6c5ae1fdb6 100644
--- a/llvm/test/Transforms/FunctionAttrs/2008-09-03-Mutual.ll
+++ b/llvm/test/Transforms/FunctionAttrs/2008-09-03-Mutual.ll
@@ -2,7 +2,7 @@
 ; RUN: opt < %s -passes=function-attrs -S | FileCheck %s
 
 define i32 @a() {
-; CHECK: Function Attrs: nofree nosync nounwind readnone
+; CHECK: Function Attrs: nofree nosync nounwind memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@a
 ; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    [[TMP:%.*]] = call i32 @b()
@@ -13,7 +13,7 @@ define i32 @a() {
 }
 
 define i32 @b() {
-; CHECK: Function Attrs: nofree nosync nounwind readnone
+; CHECK: Function Attrs: nofree nosync nounwind memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@b
 ; CHECK-SAME: () #[[ATTR0]] {
 ; CHECK-NEXT:    [[TMP:%.*]] = call i32 @a()

diff  --git a/llvm/test/Transforms/FunctionAttrs/2008-09-03-ReadNone.ll b/llvm/test/Transforms/FunctionAttrs/2008-09-03-ReadNone.ll
index 75fb113f11436..ee8437e8c0f1a 100644
--- a/llvm/test/Transforms/FunctionAttrs/2008-09-03-ReadNone.ll
+++ b/llvm/test/Transforms/FunctionAttrs/2008-09-03-ReadNone.ll
@@ -6,7 +6,7 @@
 declare i32 @e() readnone
 
 define i32 @f() {
-; CHECK: Function Attrs: nofree nosync readnone
+; CHECK: Function Attrs: nofree nosync memory(none)
 ; CHECK-LABEL: @f(
 ; CHECK-NEXT:    [[TMP:%.*]] = call i32 @e()
 ; CHECK-NEXT:    ret i32 [[TMP]]
@@ -16,7 +16,7 @@ define i32 @f() {
 }
 
 define i32 @g() readonly {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: @g(
 ; CHECK-NEXT:    ret i32 0
 ;
@@ -24,7 +24,7 @@ define i32 @g() readonly {
 }
 
 define i32 @h() readnone {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: @h(
 ; CHECK-NEXT:    [[TMP:%.*]] = load i32, ptr @x, align 4
 ; CHECK-NEXT:    ret i32 [[TMP]]

diff  --git a/llvm/test/Transforms/FunctionAttrs/2008-09-03-ReadOnly.ll b/llvm/test/Transforms/FunctionAttrs/2008-09-03-ReadOnly.ll
index e37667d94fb31..9e1b9d7e2763f 100644
--- a/llvm/test/Transforms/FunctionAttrs/2008-09-03-ReadOnly.ll
+++ b/llvm/test/Transforms/FunctionAttrs/2008-09-03-ReadOnly.ll
@@ -2,7 +2,7 @@
 ; RUN: opt < %s -passes=function-attrs -S | FileCheck %s
 
 define i32 @f() {
-; CHECK: Function Attrs: nofree readonly
+; CHECK: Function Attrs: nofree memory(read)
 ; CHECK-LABEL: @f(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[TMP:%.*]] = call i32 @e()

diff  --git a/llvm/test/Transforms/FunctionAttrs/2008-12-29-Constant.ll b/llvm/test/Transforms/FunctionAttrs/2008-12-29-Constant.ll
index 178b075f1ec78..7a97498b8f328 100644
--- a/llvm/test/Transforms/FunctionAttrs/2008-12-29-Constant.ll
+++ b/llvm/test/Transforms/FunctionAttrs/2008-12-29-Constant.ll
@@ -4,7 +4,7 @@
 @s = external constant i8
 
 define i8 @f() {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: @f(
 ; CHECK-NEXT:    [[TMP:%.*]] = load i8, ptr @s, align 1
 ; CHECK-NEXT:    ret i8 [[TMP]]

diff  --git a/llvm/test/Transforms/FunctionAttrs/argmemonly.ll b/llvm/test/Transforms/FunctionAttrs/argmemonly.ll
index 5ea9582dfe10e..fb73dd770fa9d 100644
--- a/llvm/test/Transforms/FunctionAttrs/argmemonly.ll
+++ b/llvm/test/Transforms/FunctionAttrs/argmemonly.ll
@@ -4,7 +4,7 @@
 @g = global i32 20
 
 define void @test_no_read_or_write() {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: @test_no_read_or_write(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    ret void
@@ -14,7 +14,7 @@ entry:
 }
 
 define i32 @test_only_read_arg(ptr %ptr) {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: @test_only_read_arg(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[L:%.*]] = load i32, ptr [[PTR:%.*]], align 4
@@ -26,7 +26,7 @@ entry:
 }
 
 define i32 @test_only_read_arg_already_has_argmemonly(ptr %ptr) argmemonly {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: @test_only_read_arg_already_has_argmemonly(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[L:%.*]] = load i32, ptr [[PTR:%.*]], align 4
@@ -38,7 +38,7 @@ entry:
 }
 
 define i32 @test_read_global() {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(read, argmem: none, inaccessiblemem: none)
 ; CHECK-LABEL: @test_read_global(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[L:%.*]] = load i32, ptr @g, align 4
@@ -50,7 +50,7 @@ entry:
 }
 
 define i32 @test_read_loaded_ptr(ptr %ptr) {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(read, inaccessiblemem: none)
 ; CHECK-LABEL: @test_read_loaded_ptr(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[L:%.*]] = load ptr, ptr [[PTR:%.*]], align 8
@@ -64,7 +64,7 @@ entry:
 }
 
 define void @test_only_write_arg(ptr %ptr) {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: @test_only_write_arg(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    store i32 0, ptr [[PTR:%.*]], align 4
@@ -76,7 +76,7 @@ entry:
 }
 
 define void @test_write_global() {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(write, argmem: none, inaccessiblemem: none)
 ; CHECK-LABEL: @test_write_global(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    store i32 0, ptr @g, align 4
@@ -103,7 +103,7 @@ entry:
 declare i32 @fn_readnone() readnone
 
 define void @test_call_readnone(ptr %ptr) {
-; CHECK: Function Attrs: argmemonly writeonly
+; CHECK: Function Attrs: memory(argmem: write)
 ; CHECK-LABEL: @test_call_readnone(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[C:%.*]] = call i32 @fn_readnone()
@@ -119,7 +119,7 @@ entry:
 declare i32 @fn_argmemonly(ptr) argmemonly
 
 define i32 @test_call_argmemonly(ptr %ptr) {
-; CHECK: Function Attrs: argmemonly
+; CHECK: Function Attrs: memory(argmem: readwrite)
 ; CHECK-LABEL: @test_call_argmemonly(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[C:%.*]] = call i32 @fn_argmemonly(ptr [[PTR:%.*]])
@@ -131,7 +131,7 @@ entry:
 }
 
 define i32 @test_call_fn_where_argmemonly_can_be_inferred(ptr %ptr) {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: @test_call_fn_where_argmemonly_can_be_inferred(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[C:%.*]] = call i32 @test_only_read_arg(ptr [[PTR:%.*]])
@@ -143,7 +143,7 @@ entry:
 }
 
 define void @test_memcpy_argonly(ptr %dst, ptr %src) {
-; CHECK: Function Attrs: argmemonly mustprogress nofree nosync nounwind willreturn
+; CHECK: Function Attrs: mustprogress nofree nosync nounwind willreturn memory(argmem: readwrite)
 ; CHECK-LABEL: @test_memcpy_argonly(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    call void @llvm.memcpy.p0.p0.i64(ptr [[DST:%.*]], ptr [[SRC:%.*]], i64 32, i1 false)
@@ -159,7 +159,7 @@ declare void @llvm.memcpy.p0.p0.i64(ptr, ptr, i64, i1)
 @arr = global [32 x i8] zeroinitializer
 
 define void @test_memcpy_src_global(ptr %dst) {
-; CHECK: Function Attrs: mustprogress nofree nosync nounwind willreturn
+; CHECK: Function Attrs: mustprogress nofree nosync nounwind willreturn memory(readwrite, inaccessiblemem: none)
 ; CHECK-LABEL: @test_memcpy_src_global(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    call void @llvm.memcpy.p0.p0.i64(ptr [[DST:%.*]], ptr @arr, i64 32, i1 false)
@@ -171,7 +171,7 @@ entry:
 }
 
 define void @test_memcpy_dst_global(ptr %src) {
-; CHECK: Function Attrs: mustprogress nofree nosync nounwind willreturn
+; CHECK: Function Attrs: mustprogress nofree nosync nounwind willreturn memory(readwrite, inaccessiblemem: none)
 ; CHECK-LABEL: @test_memcpy_dst_global(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    call void @llvm.memcpy.p0.p0.i64(ptr @arr, ptr [[SRC:%.*]], i64 32, i1 false)
@@ -183,7 +183,7 @@ entry:
 }
 
 define i32 @test_read_arg_access_alloca(ptr %ptr) {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: @test_read_arg_access_alloca(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
@@ -203,7 +203,7 @@ entry:
 declare void @fn_inaccessiblememonly() inaccessiblememonly
 
 define void @test_inaccessiblememonly() {
-; CHECK: Function Attrs: inaccessiblememonly
+; CHECK: Function Attrs: memory(inaccessiblemem: readwrite)
 ; CHECK-LABEL: @test_inaccessiblememonly(
 ; CHECK-NEXT:    call void @fn_inaccessiblememonly()
 ; CHECK-NEXT:    ret void
@@ -213,9 +213,9 @@ define void @test_inaccessiblememonly() {
 }
 
 define void @test_inaccessiblememonly_readonly() {
-; CHECK: Function Attrs: inaccessiblememonly nofree readonly
+; CHECK: Function Attrs: nofree memory(inaccessiblemem: read)
 ; CHECK-LABEL: @test_inaccessiblememonly_readonly(
-; CHECK-NEXT:    call void @fn_inaccessiblememonly() #[[ATTR15:[0-9]+]]
+; CHECK-NEXT:    call void @fn_inaccessiblememonly() #[[ATTR16:[0-9]+]]
 ; CHECK-NEXT:    ret void
 ;
   call void @fn_inaccessiblememonly() readonly
@@ -223,10 +223,10 @@ define void @test_inaccessiblememonly_readonly() {
 }
 
 define void @test_inaccessibleorargmemonly_readonly(ptr %arg) {
-; CHECK: Function Attrs: inaccessiblemem_or_argmemonly nofree readonly
+; CHECK: Function Attrs: nofree memory(argmem: read, inaccessiblemem: read)
 ; CHECK-LABEL: @test_inaccessibleorargmemonly_readonly(
 ; CHECK-NEXT:    [[TMP1:%.*]] = load i32, ptr [[ARG:%.*]], align 4
-; CHECK-NEXT:    call void @fn_inaccessiblememonly() #[[ATTR15]]
+; CHECK-NEXT:    call void @fn_inaccessiblememonly() #[[ATTR16]]
 ; CHECK-NEXT:    ret void
 ;
   load i32, ptr %arg
@@ -235,10 +235,10 @@ define void @test_inaccessibleorargmemonly_readonly(ptr %arg) {
 }
 
 define void @test_inaccessibleorargmemonly_readwrite(ptr %arg) {
-; CHECK: Function Attrs: inaccessiblemem_or_argmemonly
+; CHECK: Function Attrs: memory(argmem: write, inaccessiblemem: read)
 ; CHECK-LABEL: @test_inaccessibleorargmemonly_readwrite(
 ; CHECK-NEXT:    store i32 0, ptr [[ARG:%.*]], align 4
-; CHECK-NEXT:    call void @fn_inaccessiblememonly() #[[ATTR15]]
+; CHECK-NEXT:    call void @fn_inaccessiblememonly() #[[ATTR16]]
 ; CHECK-NEXT:    ret void
 ;
   store i32 0, ptr %arg

diff  --git a/llvm/test/Transforms/FunctionAttrs/atomic.ll b/llvm/test/Transforms/FunctionAttrs/atomic.ll
index 33711acd7d540..8635f2bbdc498 100644
--- a/llvm/test/Transforms/FunctionAttrs/atomic.ll
+++ b/llvm/test/Transforms/FunctionAttrs/atomic.ll
@@ -4,7 +4,7 @@
 ; Atomic load/store to local doesn't affect whether a function is
 ; readnone/readonly.
 define i32 @test1(i32 %x) uwtable ssp {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind readnone ssp willreturn uwtable
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind ssp willreturn memory(none) uwtable
 ; CHECK-LABEL: @test1(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[X_ADDR:%.*]] = alloca i32, align 4
@@ -21,7 +21,7 @@ entry:
 
 ; A function with an Acquire load is not readonly.
 define i32 @test2(ptr %x) uwtable ssp {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nounwind ssp willreturn uwtable
+; CHECK: Function Attrs: mustprogress nofree norecurse nounwind ssp willreturn memory(argmem: readwrite) uwtable
 ; CHECK-LABEL: @test2(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[R:%.*]] = load atomic i32, ptr [[X:%.*]] seq_cst, align 4

diff  --git a/llvm/test/Transforms/FunctionAttrs/convergent.ll b/llvm/test/Transforms/FunctionAttrs/convergent.ll
index 34598628688fc..0263e0ec22551 100644
--- a/llvm/test/Transforms/FunctionAttrs/convergent.ll
+++ b/llvm/test/Transforms/FunctionAttrs/convergent.ll
@@ -2,7 +2,7 @@
 ; RUN: opt -passes=function-attrs -S < %s | FileCheck %s
 
 define i32 @nonleaf() convergent {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@nonleaf
 ; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    [[A:%.*]] = call i32 @leaf()
@@ -13,7 +13,7 @@ define i32 @nonleaf() convergent {
 }
 
 define i32 @leaf() convergent {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@leaf
 ; CHECK-SAME: () #[[ATTR0]] {
 ; CHECK-NEXT:    ret i32 0
@@ -85,7 +85,7 @@ define i32 @intrinsic() convergent {
 }
 
 define i32 @recursive1() convergent {
-; CHECK: Function Attrs: nofree nosync nounwind readnone
+; CHECK: Function Attrs: nofree nosync nounwind memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@recursive1
 ; CHECK-SAME: () #[[ATTR5:[0-9]+]] {
 ; CHECK-NEXT:    [[A:%.*]] = call i32 @recursive2() #[[ATTR1]]
@@ -96,7 +96,7 @@ define i32 @recursive1() convergent {
 }
 
 define i32 @recursive2() convergent {
-; CHECK: Function Attrs: nofree nosync nounwind readnone
+; CHECK: Function Attrs: nofree nosync nounwind memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@recursive2
 ; CHECK-SAME: () #[[ATTR5]] {
 ; CHECK-NEXT:    [[A:%.*]] = call i32 @recursive1() #[[ATTR1]]

diff  --git a/llvm/test/Transforms/FunctionAttrs/incompatible_fn_attrs.ll b/llvm/test/Transforms/FunctionAttrs/incompatible_fn_attrs.ll
index b2b46f6f4974c..7e246c482431e 100644
--- a/llvm/test/Transforms/FunctionAttrs/incompatible_fn_attrs.ll
+++ b/llvm/test/Transforms/FunctionAttrs/incompatible_fn_attrs.ll
@@ -5,7 +5,7 @@
 ; function attributes when we derive readnone.
 
 define ptr @given_argmem_infer_readnone(ptr %p) #0 {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: @given_argmem_infer_readnone(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    ret ptr [[P:%.*]]
@@ -15,7 +15,7 @@ entry:
 }
 
 define ptr @given_inaccessible_infer_readnone(ptr %p) #1 {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: @given_inaccessible_infer_readnone(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    ret ptr [[P:%.*]]
@@ -25,7 +25,7 @@ entry:
 }
 
 define ptr @given_inaccessible_or_argmem_infer_readnone(ptr %p) #2 {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: @given_inaccessible_or_argmem_infer_readnone(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    ret ptr [[P:%.*]]

diff  --git a/llvm/test/Transforms/FunctionAttrs/int_sideeffect.ll b/llvm/test/Transforms/FunctionAttrs/int_sideeffect.ll
index 98a36ac17e19a..9ba82e2dc1cce 100644
--- a/llvm/test/Transforms/FunctionAttrs/int_sideeffect.ll
+++ b/llvm/test/Transforms/FunctionAttrs/int_sideeffect.ll
@@ -7,7 +7,7 @@ declare void @llvm.sideeffect()
 ; is present.
 
 define void @test() {
-; CHECK: Function Attrs: inaccessiblememonly mustprogress nofree nosync nounwind willreturn
+; CHECK: Function Attrs: mustprogress nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CHECK-LABEL: @test(
 ; CHECK-NEXT:    call void @llvm.sideeffect()
 ; CHECK-NEXT:    ret void
@@ -17,7 +17,7 @@ define void @test() {
 }
 
 define void @loop() {
-; CHECK: Function Attrs: inaccessiblememonly nofree noreturn nosync nounwind
+; CHECK: Function Attrs: nofree noreturn nosync nounwind memory(inaccessiblemem: readwrite)
 ; CHECK-LABEL: @loop(
 ; CHECK-NEXT:    br label [[LOOP:%.*]]
 ; CHECK:       loop:

diff  --git a/llvm/test/Transforms/FunctionAttrs/nofree-attributor.ll b/llvm/test/Transforms/FunctionAttrs/nofree-attributor.ll
index 81064c2f34889..0fe0eadf5f669 100644
--- a/llvm/test/Transforms/FunctionAttrs/nofree-attributor.ll
+++ b/llvm/test/Transforms/FunctionAttrs/nofree-attributor.ll
@@ -14,7 +14,7 @@ declare void @_ZdaPv(ptr) local_unnamed_addr #2
 
 ; TEST 1 (positive case)
 define void @only_return() #0 {
-; FNATTR: Function Attrs: mustprogress nofree noinline norecurse nosync nounwind readnone willreturn uwtable
+; FNATTR: Function Attrs: mustprogress nofree noinline norecurse nosync nounwind willreturn memory(none) uwtable
 ; FNATTR-LABEL: define {{[^@]+}}@only_return
 ; FNATTR-SAME: () #[[ATTR3:[0-9]+]] {
 ; FNATTR-NEXT:    ret void
@@ -101,7 +101,7 @@ end:
 
 
 define void @mutual_recursion1() #0 {
-; FNATTR: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; FNATTR: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; FNATTR-LABEL: define {{[^@]+}}@mutual_recursion1
 ; FNATTR-SAME: () #[[ATTR4:[0-9]+]] {
 ; FNATTR-NEXT:    call void @mutual_recursion2()
@@ -112,7 +112,7 @@ define void @mutual_recursion1() #0 {
 }
 
 define void @mutual_recursion2() #0 {
-; FNATTR: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; FNATTR: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; FNATTR-LABEL: define {{[^@]+}}@mutual_recursion2
 ; FNATTR-SAME: () #[[ATTR4]] {
 ; FNATTR-NEXT:    call void @mutual_recursion1()
@@ -174,7 +174,7 @@ define noalias ptr @call_realloc(ptr nocapture %0, i64 %1) local_unnamed_addr #0
 declare void @nofree_function() nofree readnone #0
 
 define void @call_nofree_function() #0 {
-; FNATTR: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; FNATTR: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; FNATTR-LABEL: define {{[^@]+}}@call_nofree_function
 ; FNATTR-SAME: () #[[ATTR4]] {
 ; FNATTR-NEXT:    tail call void @nofree_function()
@@ -225,7 +225,7 @@ define void @call_both() #0 {
 declare float @llvm.floor.f32(float)
 
 define void @call_floor(float %a) #0 {
-; FNATTR: Function Attrs: mustprogress nofree noinline nosync nounwind readnone willreturn uwtable
+; FNATTR: Function Attrs: mustprogress nofree noinline nosync nounwind willreturn memory(none) uwtable
 ; FNATTR-LABEL: define {{[^@]+}}@call_floor
 ; FNATTR-SAME: (float [[A:%.*]]) #[[ATTR7:[0-9]+]] {
 ; FNATTR-NEXT:    [[TMP1:%.*]] = tail call float @llvm.floor.f32(float [[A]])
@@ -239,7 +239,7 @@ define void @call_floor(float %a) #0 {
 ; Check propagation.
 
 define void @f1() #0 {
-; FNATTR: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; FNATTR: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; FNATTR-LABEL: define {{[^@]+}}@f1
 ; FNATTR-SAME: () #[[ATTR4]] {
 ; FNATTR-NEXT:    tail call void @nofree_function()
@@ -250,7 +250,7 @@ define void @f1() #0 {
 }
 
 define void @f2() #0 {
-; FNATTR: Function Attrs: nofree noinline nosync nounwind readnone uwtable
+; FNATTR: Function Attrs: nofree noinline nosync nounwind memory(none) uwtable
 ; FNATTR-LABEL: define {{[^@]+}}@f2
 ; FNATTR-SAME: () #[[ATTR4]] {
 ; FNATTR-NEXT:    tail call void @f1()

diff  --git a/llvm/test/Transforms/FunctionAttrs/nofree.ll b/llvm/test/Transforms/FunctionAttrs/nofree.ll
index 020d6d23af0a3..ca56117eeacc8 100644
--- a/llvm/test/Transforms/FunctionAttrs/nofree.ll
+++ b/llvm/test/Transforms/FunctionAttrs/nofree.ll
@@ -34,7 +34,7 @@ entry:
 declare void @free(ptr nocapture) local_unnamed_addr #2
 
 define i32 @_Z4foo3Pi(ptr nocapture readonly %a) local_unnamed_addr #3 {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nosync nounwind readonly willreturn uwtable
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) uwtable
 ; CHECK-LABEL: @_Z4foo3Pi(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[TMP0:%.*]] = load i32, ptr [[A:%.*]], align 4
@@ -81,8 +81,8 @@ define noalias ptr @_Z4foo6Pm(ptr nocapture %a) local_unnamed_addr #1 {
 ; CHECK: Function Attrs: nounwind uwtable
 ; CHECK-LABEL: @_Z4foo6Pm(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP1:%.*]] = load i64, ptr [[A:%.*]], align 8
-; CHECK-NEXT:    [[CALL:%.*]] = tail call ptr @realloc(ptr [[A]], i64 [[TMP1]]) #[[ATTR2]]
+; CHECK-NEXT:    [[TMP0:%.*]] = load i64, ptr [[A:%.*]], align 8
+; CHECK-NEXT:    [[CALL:%.*]] = tail call ptr @realloc(ptr [[A]], i64 [[TMP0]]) #[[ATTR2]]
 ; CHECK-NEXT:    ret ptr [[CALL]]
 ;
 entry:

diff  --git a/llvm/test/Transforms/FunctionAttrs/norecurse.ll b/llvm/test/Transforms/FunctionAttrs/norecurse.ll
index fe262a847537c..4340956312946 100644
--- a/llvm/test/Transforms/FunctionAttrs/norecurse.ll
+++ b/llvm/test/Transforms/FunctionAttrs/norecurse.ll
@@ -2,7 +2,7 @@
 ; RUN: opt < %s -aa-pipeline=basic-aa -passes='cgscc(function-attrs),rpo-function-attrs' -S | FileCheck %s
 
 define i32 @leaf() {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@leaf
 ; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    ret i32 1
@@ -11,7 +11,7 @@ define i32 @leaf() {
 }
 
 define i32 @self_rec() {
-; CHECK: Function Attrs: nofree nosync nounwind readnone
+; CHECK: Function Attrs: nofree nosync nounwind memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@self_rec
 ; CHECK-SAME: () #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:    [[A:%.*]] = call i32 @self_rec()
@@ -22,7 +22,7 @@ define i32 @self_rec() {
 }
 
 define i32 @indirect_rec() {
-; CHECK: Function Attrs: nofree nosync nounwind readnone
+; CHECK: Function Attrs: nofree nosync nounwind memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@indirect_rec
 ; CHECK-SAME: () #[[ATTR1]] {
 ; CHECK-NEXT:    [[A:%.*]] = call i32 @indirect_rec2()
@@ -33,7 +33,7 @@ define i32 @indirect_rec() {
 }
 
 define i32 @indirect_rec2() {
-; CHECK: Function Attrs: nofree nosync nounwind readnone
+; CHECK: Function Attrs: nofree nosync nounwind memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@indirect_rec2
 ; CHECK-SAME: () #[[ATTR1]] {
 ; CHECK-NEXT:    [[A:%.*]] = call i32 @indirect_rec()
@@ -44,7 +44,7 @@ define i32 @indirect_rec2() {
 }
 
 define i32 @extern() {
-; CHECK: Function Attrs: nofree nosync readnone
+; CHECK: Function Attrs: nofree nosync memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@extern
 ; CHECK-SAME: () #[[ATTR2:[0-9]+]] {
 ; CHECK-NEXT:    [[A:%.*]] = call i32 @k()
@@ -57,7 +57,7 @@ define i32 @extern() {
 declare i32 @k() readnone
 
 define void @intrinsic(ptr %dest, ptr %src, i32 %len) {
-; CHECK: Function Attrs: argmemonly mustprogress nofree nosync nounwind willreturn
+; CHECK: Function Attrs: mustprogress nofree nosync nounwind willreturn memory(argmem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@intrinsic
 ; CHECK-SAME: (ptr nocapture writeonly [[DEST:%.*]], ptr nocapture readonly [[SRC:%.*]], i32 [[LEN:%.*]]) #[[ATTR4:[0-9]+]] {
 ; CHECK-NEXT:    call void @llvm.memcpy.p0.p0.i32(ptr [[DEST]], ptr [[SRC]], i32 [[LEN]], i1 false)
@@ -70,7 +70,7 @@ define void @intrinsic(ptr %dest, ptr %src, i32 %len) {
 declare void @llvm.memcpy.p0.p0.i32(ptr, ptr, i32, i1)
 
 define internal i32 @called_by_norecurse() {
-; CHECK: Function Attrs: nofree norecurse nosync readnone
+; CHECK: Function Attrs: nofree norecurse nosync memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@called_by_norecurse
 ; CHECK-SAME: () #[[ATTR6:[0-9]+]] {
 ; CHECK-NEXT:    [[A:%.*]] = call i32 @k()
@@ -81,7 +81,7 @@ define internal i32 @called_by_norecurse() {
 }
 
 define void @m() norecurse {
-; CHECK: Function Attrs: nofree norecurse nosync readnone
+; CHECK: Function Attrs: nofree norecurse nosync memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@m
 ; CHECK-SAME: () #[[ATTR6]] {
 ; CHECK-NEXT:    [[A:%.*]] = call i32 @called_by_norecurse()
@@ -92,7 +92,7 @@ define void @m() norecurse {
 }
 
 define internal i32 @called_by_norecurse_indirectly() {
-; CHECK: Function Attrs: nofree norecurse nosync readnone
+; CHECK: Function Attrs: nofree norecurse nosync memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@called_by_norecurse_indirectly
 ; CHECK-SAME: () #[[ATTR6]] {
 ; CHECK-NEXT:    [[A:%.*]] = call i32 @k()
@@ -103,7 +103,7 @@ define internal i32 @called_by_norecurse_indirectly() {
 }
 
 define internal void @o() {
-; CHECK: Function Attrs: nofree norecurse nosync readnone
+; CHECK: Function Attrs: nofree norecurse nosync memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@o
 ; CHECK-SAME: () #[[ATTR6]] {
 ; CHECK-NEXT:    [[A:%.*]] = call i32 @called_by_norecurse_indirectly()
@@ -114,7 +114,7 @@ define internal void @o() {
 }
 
 define void @p() norecurse {
-; CHECK: Function Attrs: nofree norecurse nosync readnone
+; CHECK: Function Attrs: nofree norecurse nosync memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@p
 ; CHECK-SAME: () #[[ATTR6]] {
 ; CHECK-NEXT:    call void @o()
@@ -125,7 +125,7 @@ define void @p() norecurse {
 }
 
 define internal i32 @escapes_as_parameter(ptr %p) {
-; CHECK: Function Attrs: nofree nosync readnone
+; CHECK: Function Attrs: nofree nosync memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@escapes_as_parameter
 ; CHECK-SAME: (ptr nocapture readnone [[P:%.*]]) #[[ATTR2]] {
 ; CHECK-NEXT:    [[A:%.*]] = call i32 @k()
@@ -136,7 +136,7 @@ define internal i32 @escapes_as_parameter(ptr %p) {
 }
 
 define internal void @q() {
-; CHECK: Function Attrs: nofree norecurse nosync readnone
+; CHECK: Function Attrs: nofree norecurse nosync memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@q
 ; CHECK-SAME: () #[[ATTR6]] {
 ; CHECK-NEXT:    [[A:%.*]] = call i32 @escapes_as_parameter(ptr @escapes_as_parameter)
@@ -147,7 +147,7 @@ define internal void @q() {
 }
 
 define void @r() norecurse {
-; CHECK: Function Attrs: nofree norecurse nosync readnone
+; CHECK: Function Attrs: nofree norecurse nosync memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@r
 ; CHECK-SAME: () #[[ATTR6]] {
 ; CHECK-NEXT:    call void @q()

diff  --git a/llvm/test/Transforms/FunctionAttrs/nosync.ll b/llvm/test/Transforms/FunctionAttrs/nosync.ll
index 77f208e6b0302..1017248e3f64f 100644
--- a/llvm/test/Transforms/FunctionAttrs/nosync.ll
+++ b/llvm/test/Transforms/FunctionAttrs/nosync.ll
@@ -6,7 +6,7 @@ target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 
 ; Base case, empty function
 define void @test1() {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: @test1(
 ; CHECK-NEXT:    ret void
 ;
@@ -15,7 +15,7 @@ define void @test1() {
 
 ; Show the bottom up walk
 define void @test2() {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: @test2(
 ; CHECK-NEXT:    call void @test1()
 ; CHECK-NEXT:    ret void
@@ -38,7 +38,7 @@ define void @test3() convergent {
 }
 
 define i32 @test4(i32 %a, i32 %b) {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: @test4(
 ; CHECK-NEXT:    [[ADD:%.*]] = add i32 [[A:%.*]], [[B:%.*]]
 ; CHECK-NEXT:    ret i32 [[A]]
@@ -49,7 +49,7 @@ define i32 @test4(i32 %a, i32 %b) {
 
 ; negative case - explicit sync
 define void @test5(ptr %p) {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nounwind willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nounwind willreturn memory(argmem: readwrite)
 ; CHECK-LABEL: @test5(
 ; CHECK-NEXT:    store atomic i8 0, ptr [[P:%.*]] seq_cst, align 1
 ; CHECK-NEXT:    ret void
@@ -60,7 +60,7 @@ define void @test5(ptr %p) {
 
 ; negative case - explicit sync
 define i8 @test6(ptr %p) {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nounwind willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nounwind willreturn memory(argmem: readwrite)
 ; CHECK-LABEL: @test6(
 ; CHECK-NEXT:    [[V:%.*]] = load atomic i8, ptr [[P:%.*]] seq_cst, align 1
 ; CHECK-NEXT:    ret i8 [[V]]
@@ -71,7 +71,7 @@ define i8 @test6(ptr %p) {
 
 ; negative case - explicit sync
 define void @test7(ptr %p) {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nounwind willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nounwind willreturn memory(argmem: readwrite)
 ; CHECK-LABEL: @test7(
 ; CHECK-NEXT:    [[TMP1:%.*]] = atomicrmw add ptr [[P:%.*]], i8 0 seq_cst, align 1
 ; CHECK-NEXT:    ret void
@@ -104,7 +104,7 @@ define void @test9(ptr %p) {
 
 ; atomic load with monotonic ordering
 define i32 @load_monotonic(ptr nocapture readonly %0) norecurse nounwind uwtable {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nounwind willreturn uwtable
+; CHECK: Function Attrs: mustprogress nofree norecurse nounwind willreturn memory(argmem: readwrite) uwtable
 ; CHECK-LABEL: @load_monotonic(
 ; CHECK-NEXT:    [[TMP2:%.*]] = load atomic i32, ptr [[TMP0:%.*]] monotonic, align 4
 ; CHECK-NEXT:    ret i32 [[TMP2]]
@@ -115,7 +115,7 @@ define i32 @load_monotonic(ptr nocapture readonly %0) norecurse nounwind uwtable
 
 ; atomic store with monotonic ordering.
 define void @store_monotonic(ptr nocapture %0) norecurse nounwind uwtable {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nounwind willreturn uwtable
+; CHECK: Function Attrs: mustprogress nofree norecurse nounwind willreturn memory(argmem: readwrite) uwtable
 ; CHECK-LABEL: @store_monotonic(
 ; CHECK-NEXT:    store atomic i32 10, ptr [[TMP0:%.*]] monotonic, align 4
 ; CHECK-NEXT:    ret void
@@ -127,7 +127,7 @@ define void @store_monotonic(ptr nocapture %0) norecurse nounwind uwtable {
 ; negative, should not deduce nosync
 ; atomic load with acquire ordering.
 define i32 @load_acquire(ptr nocapture readonly %0) norecurse nounwind uwtable {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nounwind willreturn uwtable
+; CHECK: Function Attrs: mustprogress nofree norecurse nounwind willreturn memory(argmem: readwrite) uwtable
 ; CHECK-LABEL: @load_acquire(
 ; CHECK-NEXT:    [[TMP2:%.*]] = load atomic i32, ptr [[TMP0:%.*]] acquire, align 4
 ; CHECK-NEXT:    ret i32 [[TMP2]]
@@ -137,7 +137,7 @@ define i32 @load_acquire(ptr nocapture readonly %0) norecurse nounwind uwtable {
 }
 
 define i32 @load_unordered(ptr nocapture readonly %0) norecurse nounwind uwtable {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nosync nounwind readonly willreturn uwtable
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) uwtable
 ; CHECK-LABEL: @load_unordered(
 ; CHECK-NEXT:    [[TMP2:%.*]] = load atomic i32, ptr [[TMP0:%.*]] unordered, align 4
 ; CHECK-NEXT:    ret i32 [[TMP2]]
@@ -148,7 +148,7 @@ define i32 @load_unordered(ptr nocapture readonly %0) norecurse nounwind uwtable
 
 ; atomic store with unordered ordering.
 define void @store_unordered(ptr nocapture %0) norecurse nounwind uwtable {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nosync nounwind willreturn writeonly uwtable
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) uwtable
 ; CHECK-LABEL: @store_unordered(
 ; CHECK-NEXT:    store atomic i32 10, ptr [[TMP0:%.*]] unordered, align 4
 ; CHECK-NEXT:    ret void
@@ -161,7 +161,7 @@ define void @store_unordered(ptr nocapture %0) norecurse nounwind uwtable {
 ; negative, should not deduce nosync
 ; atomic load with release ordering
 define void @load_release(ptr nocapture %0) norecurse nounwind uwtable {
-; CHECK: Function Attrs: inaccessiblemem_or_argmemonly nofree norecurse nounwind uwtable
+; CHECK: Function Attrs: nofree norecurse nounwind memory(argmem: readwrite, inaccessiblemem: readwrite) uwtable
 ; CHECK-LABEL: @load_release(
 ; CHECK-NEXT:    store atomic volatile i32 10, ptr [[TMP0:%.*]] release, align 4
 ; CHECK-NEXT:    ret void
@@ -172,7 +172,7 @@ define void @load_release(ptr nocapture %0) norecurse nounwind uwtable {
 
 ; negative volatile, relaxed atomic
 define void @load_volatile_release(ptr nocapture %0) norecurse nounwind uwtable {
-; CHECK: Function Attrs: inaccessiblemem_or_argmemonly nofree norecurse nounwind uwtable
+; CHECK: Function Attrs: nofree norecurse nounwind memory(argmem: readwrite, inaccessiblemem: readwrite) uwtable
 ; CHECK-LABEL: @load_volatile_release(
 ; CHECK-NEXT:    store atomic volatile i32 10, ptr [[TMP0:%.*]] release, align 4
 ; CHECK-NEXT:    ret void
@@ -183,7 +183,7 @@ define void @load_volatile_release(ptr nocapture %0) norecurse nounwind uwtable
 
 ; volatile store.
 define void @volatile_store(ptr %0) norecurse nounwind uwtable {
-; CHECK: Function Attrs: inaccessiblemem_or_argmemonly nofree norecurse nounwind uwtable
+; CHECK: Function Attrs: nofree norecurse nounwind memory(argmem: readwrite, inaccessiblemem: readwrite) uwtable
 ; CHECK-LABEL: @volatile_store(
 ; CHECK-NEXT:    store volatile i32 14, ptr [[TMP0:%.*]], align 4
 ; CHECK-NEXT:    ret void
@@ -195,7 +195,7 @@ define void @volatile_store(ptr %0) norecurse nounwind uwtable {
 ; negative, should not deduce nosync
 ; volatile load.
 define i32 @volatile_load(ptr %0) norecurse nounwind uwtable {
-; CHECK: Function Attrs: inaccessiblemem_or_argmemonly mustprogress nofree norecurse nounwind willreturn uwtable
+; CHECK: Function Attrs: mustprogress nofree norecurse nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite) uwtable
 ; CHECK-LABEL: @volatile_load(
 ; CHECK-NEXT:    [[TMP2:%.*]] = load volatile i32, ptr [[TMP0:%.*]], align 4
 ; CHECK-NEXT:    ret i32 [[TMP2]]
@@ -237,7 +237,7 @@ declare void @llvm.memset(ptr %dest, i8 %val, i32 %len, i1 %isvolatile)
 
 ; negative, checking volatile intrinsics.
 define i32 @memcpy_volatile(ptr %ptr1, ptr %ptr2) {
-; CHECK: Function Attrs: argmemonly mustprogress nofree nounwind willreturn
+; CHECK: Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: readwrite)
 ; CHECK-LABEL: @memcpy_volatile(
 ; CHECK-NEXT:    call void @llvm.memcpy.p0.p0.i32(ptr [[PTR1:%.*]], ptr [[PTR2:%.*]], i32 8, i1 true)
 ; CHECK-NEXT:    ret i32 4
@@ -248,7 +248,7 @@ define i32 @memcpy_volatile(ptr %ptr1, ptr %ptr2) {
 
 ; positive, non-volatile intrinsic.
 define i32 @memset_non_volatile(ptr %ptr1, i8 %val) {
-; CHECK: Function Attrs: argmemonly mustprogress nofree nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: mustprogress nofree nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: @memset_non_volatile(
 ; CHECK-NEXT:    call void @llvm.memset.p0.i32(ptr [[PTR1:%.*]], i8 [[VAL:%.*]], i32 8, i1 false)
 ; CHECK-NEXT:    ret i32 4
@@ -271,7 +271,7 @@ declare void @readnone_test() convergent readnone
 
 ; negative. Convergent
 define void @convergent_readnone(){
-; CHECK: Function Attrs: nofree nosync readnone
+; CHECK: Function Attrs: nofree nosync memory(none)
 ; CHECK-LABEL: @convergent_readnone(
 ; CHECK-NEXT:    call void @readnone_test()
 ; CHECK-NEXT:    ret void
@@ -299,7 +299,7 @@ define void @i_totally_sync() {
 declare float @llvm.cos(float %val) readnone
 
 define float @cos_test(float %x) {
-; CHECK: Function Attrs: mustprogress nofree nosync nounwind readnone willreturn
+; CHECK: Function Attrs: mustprogress nofree nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: @cos_test(
 ; CHECK-NEXT:    [[C:%.*]] = call float @llvm.cos.f32(float [[X:%.*]])
 ; CHECK-NEXT:    ret float [[C]]

diff  --git a/llvm/test/Transforms/FunctionAttrs/nounwind.ll b/llvm/test/Transforms/FunctionAttrs/nounwind.ll
index 7987f7477b900..a147685964dfe 100644
--- a/llvm/test/Transforms/FunctionAttrs/nounwind.ll
+++ b/llvm/test/Transforms/FunctionAttrs/nounwind.ll
@@ -3,7 +3,7 @@
 
 ; TEST 1
 define i32 @foo1() {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@foo1
 ; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    ret i32 1
@@ -13,7 +13,7 @@ define i32 @foo1() {
 
 ; TEST 2
 define i32 @scc1_foo() {
-; CHECK: Function Attrs: nofree nosync nounwind readnone
+; CHECK: Function Attrs: nofree nosync nounwind memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@scc1_foo
 ; CHECK-SAME: () #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:    [[TMP1:%.*]] = call i32 @scc1_bar()
@@ -26,7 +26,7 @@ define i32 @scc1_foo() {
 
 ; TEST 3
 define i32 @scc1_bar() {
-; CHECK: Function Attrs: nofree nosync nounwind readnone
+; CHECK: Function Attrs: nofree nosync nounwind memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@scc1_bar
 ; CHECK-SAME: () #[[ATTR1]] {
 ; CHECK-NEXT:    [[TMP1:%.*]] = call i32 @scc1_foo()

diff  --git a/llvm/test/Transforms/FunctionAttrs/optnone.ll b/llvm/test/Transforms/FunctionAttrs/optnone.ll
index 260d53b2bfed9..4f097147ff57f 100644
--- a/llvm/test/Transforms/FunctionAttrs/optnone.ll
+++ b/llvm/test/Transforms/FunctionAttrs/optnone.ll
@@ -20,6 +20,6 @@ declare i8 @strlen(ptr) noinline optnone
 ; CHECK: (ptr) #1
 
 ; CHECK-LABEL: attributes #0
-; CHECK: = { mustprogress nofree norecurse nosync nounwind readnone willreturn }
+; CHECK: = { mustprogress nofree norecurse nosync nounwind willreturn memory(none) }
 ; CHECK-LABEL: attributes #1
 ; CHECK: = { noinline optnone }

diff  --git a/llvm/test/Transforms/FunctionAttrs/readattrs.ll b/llvm/test/Transforms/FunctionAttrs/readattrs.ll
index 1833d8b561ccf..94ffde15d338a 100644
--- a/llvm/test/Transforms/FunctionAttrs/readattrs.ll
+++ b/llvm/test/Transforms/FunctionAttrs/readattrs.ll
@@ -18,7 +18,7 @@ define void @test1_2(ptr %x1_2, ptr %y1_2, ptr %z1_2) {
 }
 
 define ptr @test2(ptr %p) {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(write, argmem: none, inaccessiblemem: none)
 ; CHECK-LABEL: define {{[^@]+}}@test2
 ; CHECK-SAME: (ptr readnone returned [[P:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    store i32 0, ptr @x, align 4
@@ -29,7 +29,7 @@ define ptr @test2(ptr %p) {
 }
 
 define i1 @test3(ptr %p, ptr %q) {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test3
 ; CHECK-SAME: (ptr readnone [[P:%.*]], ptr readnone [[Q:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:    [[A:%.*]] = icmp ult ptr [[P]], [[Q]]
@@ -42,7 +42,7 @@ define i1 @test3(ptr %p, ptr %q) {
 declare void @test4_1(ptr nocapture) readonly
 
 define void @test4_2(ptr %p) {
-; CHECK: Function Attrs: nofree readonly
+; CHECK: Function Attrs: nofree memory(read)
 ; CHECK-LABEL: define {{[^@]+}}@test4_2
 ; CHECK-SAME: (ptr nocapture readonly [[P:%.*]]) #[[ATTR3:[0-9]+]] {
 ; CHECK-NEXT:    call void @test4_1(ptr [[P]])
@@ -54,7 +54,7 @@ define void @test4_2(ptr %p) {
 
 ; Missed optz'n: we could make %q readnone, but don't break test6!
 define void @test5(ptr %p, ptr %q) {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@test5
 ; CHECK-SAME: (ptr nocapture writeonly [[P:%.*]], ptr [[Q:%.*]]) #[[ATTR4:[0-9]+]] {
 ; CHECK-NEXT:    store ptr [[Q]], ptr [[P]], align 8
@@ -81,7 +81,7 @@ define void @test6_2(ptr %p, ptr %q) {
 
 ; inalloca parameters are always considered written
 define void @test7_1(ptr inalloca(i32) %a) {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nosync nounwind willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@test7_1
 ; CHECK-SAME: (ptr nocapture inalloca(i32) [[A:%.*]]) #[[ATTR5:[0-9]+]] {
 ; CHECK-NEXT:    ret void
@@ -91,7 +91,7 @@ define void @test7_1(ptr inalloca(i32) %a) {
 
 ; preallocated parameters are always considered written
 define void @test7_2(ptr preallocated(i32) %a) {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nosync nounwind willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@test7_2
 ; CHECK-SAME: (ptr nocapture preallocated(i32) [[A:%.*]]) #[[ATTR5]] {
 ; CHECK-NEXT:    ret void
@@ -100,7 +100,7 @@ define void @test7_2(ptr preallocated(i32) %a) {
 }
 
 define ptr @test8_1(ptr %p) {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@test8_1
 ; CHECK-SAME: (ptr readnone returned [[P:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:  entry:
@@ -111,7 +111,7 @@ entry:
 }
 
 define void @test8_2(ptr %p) {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@test8_2
 ; CHECK-SAME: (ptr writeonly [[P:%.*]]) #[[ATTR4]] {
 ; CHECK-NEXT:  entry:
@@ -128,7 +128,7 @@ entry:
 declare void @llvm.masked.scatter.v4i32.v4p0(<4 x i32>%val, <4 x ptr>, i32, <4 x i1>)
 
 define void @test9(<4 x ptr> %ptrs, <4 x i32>%val) {
-; CHECK: Function Attrs: mustprogress nofree nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: mustprogress nofree nosync nounwind willreturn memory(write)
 ; CHECK-LABEL: define {{[^@]+}}@test9
 ; CHECK-SAME: (<4 x ptr> [[PTRS:%.*]], <4 x i32> [[VAL:%.*]]) #[[ATTR7:[0-9]+]] {
 ; CHECK-NEXT:    call void @llvm.masked.scatter.v4i32.v4p0(<4 x i32> [[VAL]], <4 x ptr> [[PTRS]], i32 4, <4 x i1> <i1 true, i1 false, i1 true, i1 false>)
@@ -140,7 +140,7 @@ define void @test9(<4 x ptr> %ptrs, <4 x i32>%val) {
 
 declare <4 x i32> @llvm.masked.gather.v4i32.v4p0(<4 x ptr>, i32, <4 x i1>, <4 x i32>)
 define <4 x i32> @test10(<4 x ptr> %ptrs) {
-; CHECK: Function Attrs: mustprogress nofree nosync nounwind readonly willreturn
+; CHECK: Function Attrs: mustprogress nofree nosync nounwind willreturn memory(read)
 ; CHECK-LABEL: define {{[^@]+}}@test10
 ; CHECK-SAME: (<4 x ptr> [[PTRS:%.*]]) #[[ATTR9:[0-9]+]] {
 ; CHECK-NEXT:    [[RES:%.*]] = call <4 x i32> @llvm.masked.gather.v4i32.v4p0(<4 x ptr> [[PTRS]], i32 4, <4 x i1> <i1 true, i1 false, i1 true, i1 false>, <4 x i32> undef)
@@ -152,7 +152,7 @@ define <4 x i32> @test10(<4 x ptr> %ptrs) {
 
 declare <4 x i32> @test11_1(<4 x ptr>) argmemonly nounwind readonly
 define <4 x i32> @test11_2(<4 x ptr> %ptrs) {
-; CHECK: Function Attrs: argmemonly nofree nounwind readonly
+; CHECK: Function Attrs: nofree nounwind memory(argmem: read)
 ; CHECK-LABEL: define {{[^@]+}}@test11_2
 ; CHECK-SAME: (<4 x ptr> [[PTRS:%.*]]) #[[ATTR11:[0-9]+]] {
 ; CHECK-NEXT:    [[RES:%.*]] = call <4 x i32> @test11_1(<4 x ptr> [[PTRS]])
@@ -164,7 +164,7 @@ define <4 x i32> @test11_2(<4 x ptr> %ptrs) {
 
 declare <4 x i32> @test12_1(<4 x ptr>) argmemonly nounwind
 define <4 x i32> @test12_2(<4 x ptr> %ptrs) {
-; CHECK: Function Attrs: argmemonly nounwind
+; CHECK: Function Attrs: nounwind memory(argmem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@test12_2
 ; CHECK-SAME: (<4 x ptr> [[PTRS:%.*]]) #[[ATTR12:[0-9]+]] {
 ; CHECK-NEXT:    [[RES:%.*]] = call <4 x i32> @test12_1(<4 x ptr> [[PTRS]])
@@ -175,7 +175,7 @@ define <4 x i32> @test12_2(<4 x ptr> %ptrs) {
 }
 
 define i32 @volatile_load(ptr %p) {
-; CHECK: Function Attrs: inaccessiblemem_or_argmemonly mustprogress nofree norecurse nounwind willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@volatile_load
 ; CHECK-SAME: (ptr [[P:%.*]]) #[[ATTR13:[0-9]+]] {
 ; CHECK-NEXT:    [[LOAD:%.*]] = load volatile i32, ptr [[P]], align 4
@@ -246,7 +246,7 @@ define void @fptr_test1b(ptr %p, ptr %f) {
 }
 
 define void @fptr_test1c(ptr %p, ptr %f) {
-; CHECK: Function Attrs: nofree readonly
+; CHECK: Function Attrs: nofree memory(read)
 ; CHECK-LABEL: define {{[^@]+}}@fptr_test1c
 ; CHECK-SAME: (ptr readnone [[P:%.*]], ptr nocapture readonly [[F:%.*]]) #[[ATTR3]] {
 ; CHECK-NEXT:    call void [[F]](ptr readnone [[P]]) #[[ATTR2:[0-9]+]]
@@ -278,7 +278,7 @@ define void @fptr_test2b(ptr %p, ptr %f) {
 }
 
 define void @fptr_test2c(ptr %p, ptr %f) {
-; CHECK: Function Attrs: nofree readonly
+; CHECK: Function Attrs: nofree memory(read)
 ; CHECK-LABEL: define {{[^@]+}}@fptr_test2c
 ; CHECK-SAME: (ptr readonly [[P:%.*]], ptr nocapture readonly [[F:%.*]]) #[[ATTR3]] {
 ; CHECK-NEXT:    call void [[F]](ptr readonly [[P]]) #[[ATTR2]]
@@ -289,7 +289,7 @@ define void @fptr_test2c(ptr %p, ptr %f) {
 }
 
 define void @alloca_recphi() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone
+; CHECK: Function Attrs: nofree norecurse nosync nounwind memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@alloca_recphi
 ; CHECK-SAME: () #[[ATTR14:[0-9]+]] {
 ; CHECK-NEXT:  entry:

diff  --git a/llvm/test/Transforms/FunctionAttrs/stats.ll b/llvm/test/Transforms/FunctionAttrs/stats.ll
index 2f36939846d20..5f007b4078ff3 100644
--- a/llvm/test/Transforms/FunctionAttrs/stats.ll
+++ b/llvm/test/Transforms/FunctionAttrs/stats.ll
@@ -16,13 +16,11 @@ entry:
   ret void
 }
 
-; CHECK:      1 function-attrs - Number of functions marked argmemonly
+; CHECK:      2 function-attrs - Number of functions with improved memory attribute
 ; CHECK-NEXT: 1 function-attrs - Number of arguments marked nocapture
 ; CHECK-NEXT: 1 function-attrs - Number of functions marked as nofree
 ; CHECK-NEXT: 2 function-attrs - Number of functions marked as norecurse
 ; CHECK-NEXT: 2 function-attrs - Number of functions marked as nosync
 ; CHECK-NEXT: 2 function-attrs - Number of functions marked as nounwind
-; CHECK-NEXT: 1 function-attrs - Number of functions marked readonly
 ; CHECK-NEXT: 1 function-attrs - Number of arguments marked readonly
 ; CHECK-NEXT: 2 function-attrs - Number of functions marked as willreturn
-; CHECK-NEXT: 1 function-attrs - Number of functions marked writeonly

diff  --git a/llvm/test/Transforms/FunctionAttrs/willreturn-callsites.ll b/llvm/test/Transforms/FunctionAttrs/willreturn-callsites.ll
index 304c415951c64..ecc9a249046ab 100644
--- a/llvm/test/Transforms/FunctionAttrs/willreturn-callsites.ll
+++ b/llvm/test/Transforms/FunctionAttrs/willreturn-callsites.ll
@@ -38,7 +38,7 @@ define void @test_fn_willreturn(ptr %ptr) willreturn {
 }
 
 define void @test_fn_mustprogress_readonly_calls(ptr %ptr) mustprogress {
-; CHECK: Function Attrs: mustprogress nofree readonly willreturn
+; CHECK: Function Attrs: mustprogress nofree willreturn memory(read)
 ; CHECK-LABEL: @test_fn_mustprogress_readonly_calls(
 ; CHECK-NOT:     call void @decl_readonly() #
 ; CHECK-NOT:     call void @decl_readnone() #

diff  --git a/llvm/test/Transforms/FunctionAttrs/willreturn.ll b/llvm/test/Transforms/FunctionAttrs/willreturn.ll
index 3413b96556195..1c422ea476d26 100644
--- a/llvm/test/Transforms/FunctionAttrs/willreturn.ll
+++ b/llvm/test/Transforms/FunctionAttrs/willreturn.ll
@@ -2,7 +2,7 @@
 ; RUN: opt -function-attrs -S %s | FileCheck %s
 
 define void @mustprogress_readnone() mustprogress {
-; CHECK: Function Attrs: mustprogress nofree norecurse noreturn nosync nounwind readnone willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse noreturn nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: @mustprogress_readnone(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    br label [[WHILE_BODY:%.*]]
@@ -17,7 +17,7 @@ while.body:
 }
 
 define i32 @mustprogress_load(ptr %ptr) mustprogress {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse noreturn nosync nounwind readonly willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse noreturn nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: @mustprogress_load(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    br label [[WHILE_BODY:%.*]]
@@ -34,7 +34,7 @@ while.body:
 }
 
 define void @mustprogress_store(ptr %ptr) mustprogress {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse noreturn nosync nounwind writeonly
+; CHECK: Function Attrs: mustprogress nofree norecurse noreturn nosync nounwind memory(argmem: write)
 ; CHECK-LABEL: @mustprogress_store(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    br label [[WHILE_BODY:%.*]]
@@ -63,7 +63,7 @@ define void @mustprogress_call_unknown_fn() mustprogress {
 }
 
 define i32 @mustprogress_call_known_functions(ptr %ptr) mustprogress {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse noreturn nosync nounwind readonly willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse noreturn nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: @mustprogress_call_known_functions(
 ; CHECK-NEXT:    call void @mustprogress_readnone()
 ; CHECK-NEXT:    [[R:%.*]] = call i32 @mustprogress_load(ptr [[PTR:%.*]])
@@ -77,7 +77,7 @@ define i32 @mustprogress_call_known_functions(ptr %ptr) mustprogress {
 declare i32 @__gxx_personality_v0(...)
 
 define i64 @mustprogress_mayunwind() mustprogress personality ptr @__gxx_personality_v0 {
-; CHECK: Function Attrs: mustprogress nofree nosync nounwind readnone willreturn
+; CHECK: Function Attrs: mustprogress nofree nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: @mustprogress_mayunwind(
 ; CHECK-NEXT:    [[A:%.*]] = invoke i64 @fn_noread()
 ; CHECK-NEXT:    to label [[A:%.*]] unwind label [[B:%.*]]
@@ -141,7 +141,7 @@ define void @willreturn_non_returning_function(i1 %c, ptr %p) {
 
 ; Infinite loop without mustprogress, will not return.
 define void @willreturn_loop() {
-; CHECK: Function Attrs: nofree norecurse noreturn nosync nounwind readnone
+; CHECK: Function Attrs: nofree norecurse noreturn nosync nounwind memory(none)
 ; CHECK-LABEL: @willreturn_loop(
 ; CHECK-NEXT:    br label [[LOOP:%.*]]
 ; CHECK:       loop:
@@ -156,7 +156,7 @@ loop:
 ; Finite loop. Could be willreturn but not detected.
 ; FIXME
 define void @willreturn_finite_loop() {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone
+; CHECK: Function Attrs: nofree norecurse nosync nounwind memory(none)
 ; CHECK-LABEL: @willreturn_finite_loop(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    br label [[LOOP:%.*]]
@@ -183,7 +183,7 @@ end:
 
 ; Infinite recursion without mustprogress, will not return.
 define void @willreturn_recursion() {
-; CHECK: Function Attrs: nofree nosync nounwind readnone
+; CHECK: Function Attrs: nofree nosync nounwind memory(none)
 ; CHECK-LABEL: @willreturn_recursion(
 ; CHECK-NEXT:    tail call void @willreturn_recursion()
 ; CHECK-NEXT:    ret void
@@ -194,7 +194,7 @@ define void @willreturn_recursion() {
 
 ; Irreducible infinite loop, will not return.
 define void @willreturn_irreducible(i1 %c) {
-; CHECK: Function Attrs: nofree norecurse noreturn nosync nounwind readnone
+; CHECK: Function Attrs: nofree norecurse noreturn nosync nounwind memory(none)
 ; CHECK-LABEL: @willreturn_irreducible(
 ; CHECK-NEXT:    br i1 [[C:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
 ; CHECK:       bb1:

diff  --git a/llvm/test/Transforms/FunctionAttrs/writeonly.ll b/llvm/test/Transforms/FunctionAttrs/writeonly.ll
index 40ca265990487..0c8ec05223b36 100644
--- a/llvm/test/Transforms/FunctionAttrs/writeonly.ll
+++ b/llvm/test/Transforms/FunctionAttrs/writeonly.ll
@@ -2,7 +2,7 @@
 ; RUN: opt < %s -passes=function-attrs -S | FileCheck %s
 
 define void @nouses-argworn-funrn(ptr writeonly %.aaa) {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
 ; CHECK-LABEL: define {{[^@]+}}@nouses-argworn-funrn
 ; CHECK-SAME: (ptr nocapture readnone [[DOTAAA:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  nouses-argworn-funrn_entry:
@@ -13,7 +13,7 @@ nouses-argworn-funrn_entry:
 }
 
 define void @nouses-argworn-funro(ptr writeonly %.aaa, ptr %.bbb) {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nosync nounwind readonly willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read)
 ; CHECK-LABEL: define {{[^@]+}}@nouses-argworn-funro
 ; CHECK-SAME: (ptr nocapture readnone [[DOTAAA:%.*]], ptr nocapture readonly [[DOTBBB:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:  nouses-argworn-funro_entry:
@@ -30,7 +30,7 @@ nouses-argworn-funro_entry:
 @d-ccc = internal global %_type_of_d-ccc <{ ptr null, i8 1, i8 13, i8 0, i8 -127 }>, align 8
 
 define void @nouses-argworn-funwo(ptr writeonly %.aaa) {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(write, argmem: none, inaccessiblemem: none)
 ; CHECK-LABEL: define {{[^@]+}}@nouses-argworn-funwo
 ; CHECK-SAME: (ptr nocapture readnone [[DOTAAA:%.*]]) #[[ATTR2:[0-9]+]] {
 ; CHECK-NEXT:  nouses-argworn-funwo_entry:
@@ -43,7 +43,7 @@ nouses-argworn-funwo_entry:
 }
 
 define void @test_store(ptr %p) {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@test_store
 ; CHECK-SAME: (ptr nocapture writeonly [[P:%.*]]) #[[ATTR3:[0-9]+]] {
 ; CHECK-NEXT:    store i8 0, ptr [[P]], align 1
@@ -55,7 +55,7 @@ define void @test_store(ptr %p) {
 
 @G = external global ptr
 define i8 @test_store_capture(ptr %p) {
-; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, argmem: read, inaccessiblemem: none)
 ; CHECK-LABEL: define {{[^@]+}}@test_store_capture
 ; CHECK-SAME: (ptr [[P:%.*]]) #[[ATTR4:[0-9]+]] {
 ; CHECK-NEXT:    store ptr [[P]], ptr @G, align 8
@@ -70,7 +70,7 @@ define i8 @test_store_capture(ptr %p) {
 }
 
 define void @test_addressing(ptr %p) {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nosync nounwind willreturn writeonly
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
 ; CHECK-LABEL: define {{[^@]+}}@test_addressing
 ; CHECK-SAME: (ptr nocapture writeonly [[P:%.*]]) #[[ATTR3]] {
 ; CHECK-NEXT:    [[GEP:%.*]] = getelementptr i8, ptr [[P]], i64 8
@@ -83,7 +83,7 @@ define void @test_addressing(ptr %p) {
 }
 
 define void @test_readwrite(ptr %p) {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nosync nounwind willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@test_readwrite
 ; CHECK-SAME: (ptr nocapture [[P:%.*]]) #[[ATTR5:[0-9]+]] {
 ; CHECK-NEXT:    [[V:%.*]] = load i8, ptr [[P]], align 1
@@ -96,7 +96,7 @@ define void @test_readwrite(ptr %p) {
 }
 
 define void @test_volatile(ptr %p) {
-; CHECK: Function Attrs: inaccessiblemem_or_argmemonly nofree norecurse nounwind
+; CHECK: Function Attrs: nofree norecurse nounwind memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@test_volatile
 ; CHECK-SAME: (ptr [[P:%.*]]) #[[ATTR6:[0-9]+]] {
 ; CHECK-NEXT:    store volatile i8 0, ptr [[P]], align 1
@@ -107,7 +107,7 @@ define void @test_volatile(ptr %p) {
 }
 
 define void @test_atomicrmw(ptr %p) {
-; CHECK: Function Attrs: argmemonly mustprogress nofree norecurse nounwind willreturn
+; CHECK: Function Attrs: mustprogress nofree norecurse nounwind willreturn memory(argmem: readwrite)
 ; CHECK-LABEL: define {{[^@]+}}@test_atomicrmw
 ; CHECK-SAME: (ptr nocapture [[P:%.*]]) #[[ATTR7:[0-9]+]] {
 ; CHECK-NEXT:    [[TMP1:%.*]] = atomicrmw add ptr [[P]], i8 0 seq_cst, align 1
@@ -134,7 +134,7 @@ declare void @direct2_callee(ptr %p) writeonly
 
 ; writeonly w/o nocapture is not enough
 define void @direct2(ptr %p) {
-; CHECK: Function Attrs: writeonly
+; CHECK: Function Attrs: memory(write)
 ; CHECK-LABEL: define {{[^@]+}}@direct2
 ; CHECK-SAME: (ptr [[P:%.*]]) #[[ATTR8:[0-9]+]] {
 ; CHECK-NEXT:    call void @direct2_callee(ptr [[P]])
@@ -146,9 +146,9 @@ define void @direct2(ptr %p) {
 }
 
 define void @direct2b(ptr %p) {
-; CHECK: Function Attrs: writeonly
+; CHECK: Function Attrs: memory(write)
 ; CHECK-LABEL: define {{[^@]+}}@direct2b
-; CHECK-SAME: (ptr nocapture writeonly [[P:%.*]]) #[[ATTR8]] {
+; CHECK-SAME: (ptr nocapture [[P:%.*]]) #[[ATTR8]] {
 ; CHECK-NEXT:    call void @direct2_callee(ptr nocapture [[P]])
 ; CHECK-NEXT:    ret void
 ;
@@ -209,9 +209,9 @@ define void @fptr_test2(ptr %p, ptr %f) {
 }
 
 define void @fptr_test3(ptr %p, ptr %f) {
-; CHECK: Function Attrs: writeonly
+; CHECK: Function Attrs: memory(write)
 ; CHECK-LABEL: define {{[^@]+}}@fptr_test3
-; CHECK-SAME: (ptr nocapture writeonly [[P:%.*]], ptr nocapture readonly [[F:%.*]]) #[[ATTR8]] {
+; CHECK-SAME: (ptr nocapture [[P:%.*]], ptr nocapture readonly [[F:%.*]]) #[[ATTR8]] {
 ; CHECK-NEXT:    call void [[F]](ptr nocapture [[P]]) #[[ATTR8]]
 ; CHECK-NEXT:    ret void
 ;

diff  --git a/llvm/test/Transforms/GlobalOpt/ctor-memset.ll b/llvm/test/Transforms/GlobalOpt/ctor-memset.ll
index 8923fec97a63d..526076cd9a85b 100644
--- a/llvm/test/Transforms/GlobalOpt/ctor-memset.ll
+++ b/llvm/test/Transforms/GlobalOpt/ctor-memset.ll
@@ -115,5 +115,5 @@ define internal void @ctor8() {
 
 declare void @llvm.memset.p0.i64(ptr, i8, i64, i1)
 ;.
-; CHECK: attributes #[[ATTR0:[0-9]+]] = { argmemonly nocallback nofree nounwind willreturn writeonly }
+; CHECK: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) }
 ;.

diff  --git a/llvm/test/Transforms/GlobalOpt/pr54572.ll b/llvm/test/Transforms/GlobalOpt/pr54572.ll
index e4f3264b5871e..83640452ed1c4 100644
--- a/llvm/test/Transforms/GlobalOpt/pr54572.ll
+++ b/llvm/test/Transforms/GlobalOpt/pr54572.ll
@@ -19,5 +19,5 @@ define void @test() {
   ret void
 }
 ;.
-; CHECK: attributes #[[ATTR0:[0-9]+]] = { argmemonly nocallback nofree nounwind willreturn }
+; CHECK: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
 ;.

diff  --git a/llvm/test/Transforms/InferFunctionAttrs/annotate.ll b/llvm/test/Transforms/InferFunctionAttrs/annotate.ll
index 5e795b9baf07a..e5c61c2f3e479 100644
--- a/llvm/test/Transforms/InferFunctionAttrs/annotate.ll
+++ b/llvm/test/Transforms/InferFunctionAttrs/annotate.ll
@@ -1081,25 +1081,25 @@ declare void @memset_pattern8(i8*, i8*, i64)
 declare void @memset_pattern16(i8*, i8*, i64)
 
 ; CHECK-DAG: attributes [[NOFREE_NOUNWIND_WILLRETURN]] = { mustprogress nofree nounwind willreturn }
-; CHECK-DAG: attributes [[NOFREE_NOUNWIND_WILLRETURN_WRITEONLY]] = { mustprogress nofree nounwind willreturn writeonly }
+; CHECK-DAG: attributes [[NOFREE_NOUNWIND_WILLRETURN_WRITEONLY]] = { mustprogress nofree nounwind willreturn memory(write) }
 ; CHECK-DAG: attributes [[NOFREE_NOUNWIND]] = { nofree nounwind }
-; CHECK-DAG: attributes [[INACCESSIBLEMEMONLY_NOFREE_NOUNWIND_WILLRETURN_ALLOCKIND_ALLOCUNINIT_ALLOCSIZE1_FAMILY_MALLOC]] = { inaccessiblememonly mustprogress nofree nounwind willreturn allockind("alloc,uninitialized,aligned") allocsize(1) "alloc-family"="malloc" }
-; CHECK-DAG: attributes [[INACCESSIBLEMEMONLY_NOFREE_NOUNWIND_WILLRETURN_ALLOCKIND_ALLOCZEROED_ALLOCSIZE01_FAMILY_MALLOC]] = { inaccessiblememonly mustprogress nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) "alloc-family"="malloc" }
-; CHECK-DAG: attributes [[NOFREE_NOUNWIND_READONLY_WILLRETURN]] = { mustprogress nofree nounwind readonly willreturn }
-; CHECK-DAG: attributes [[ARGMEMONLY_NOFREE_NOUNWIND_WILLRETURN]] = { argmemonly mustprogress nofree nounwind willreturn }
-; CHECK-DAG: attributes [[NOFREE_NOUNWIND_READONLY]] = { nofree nounwind readonly }
-; CHECK-DAG: attributes [[INACCESSIBLEMEMORARGMEMONLY_NOUNWIND_WILLRETURN_ALLOCKIND_FREE_FAMILY_MALLOC]] = { inaccessiblemem_or_argmemonly mustprogress nounwind willreturn allockind("free") "alloc-family"="malloc" }
+; CHECK-DAG: attributes [[INACCESSIBLEMEMONLY_NOFREE_NOUNWIND_WILLRETURN_ALLOCKIND_ALLOCUNINIT_ALLOCSIZE1_FAMILY_MALLOC]] = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized,aligned") allocsize(1) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" }
+; CHECK-DAG: attributes [[INACCESSIBLEMEMONLY_NOFREE_NOUNWIND_WILLRETURN_ALLOCKIND_ALLOCZEROED_ALLOCSIZE01_FAMILY_MALLOC]] = { mustprogress nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" }
+; CHECK-DAG: attributes [[NOFREE_NOUNWIND_READONLY_WILLRETURN]] = { mustprogress nofree nounwind willreturn memory(read) }
+; CHECK-DAG: attributes [[ARGMEMONLY_NOFREE_NOUNWIND_WILLRETURN]] = { mustprogress nofree nounwind willreturn memory(argmem: readwrite) }
+; CHECK-DAG: attributes [[NOFREE_NOUNWIND_READONLY]] = { nofree nounwind memory(read) }
+; CHECK-DAG: attributes [[INACCESSIBLEMEMORARGMEMONLY_NOUNWIND_WILLRETURN_ALLOCKIND_FREE_FAMILY_MALLOC]] = { mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" }
 ; CHECK-DAG: attributes [[NOFREE_WILLRETURN]] = { mustprogress nofree willreturn }
-; CHECK-DAG: attributes [[INACCESSIBLEMEMONLY_NOFREE_NOUNWIND_WILLRETURN_ALLOCKIND_ALLOCUNINIT_ALLOCSIZE0_FAMILY_MALLOC]] = { inaccessiblememonly mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) "alloc-family"="malloc" }
-; CHECK-DAG: attributes [[ARGMEMONLY_NOFREE_NOUNWIND_READONLY_WILLRETURN]] = { argmemonly mustprogress nofree nounwind readonly willreturn }
+; CHECK-DAG: attributes [[INACCESSIBLEMEMONLY_NOFREE_NOUNWIND_WILLRETURN_ALLOCKIND_ALLOCUNINIT_ALLOCSIZE0_FAMILY_MALLOC]] = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" }
+; CHECK-DAG: attributes [[ARGMEMONLY_NOFREE_NOUNWIND_READONLY_WILLRETURN]] = { mustprogress nofree nounwind willreturn memory(argmem: read) }
 ; CHECK-DAG: attributes [[NOFREE]] = { nofree }
-; CHECK-DAG: attributes [[ARGMEMONLY_NOFREE_NOUNWIND]] = { argmemonly nofree nounwind }
-; CHECK-DAG: attributes [[INACCESSIBLEMEMORARGMEMONLY_NOUNWIND_WILLRETURN_ALLOCKIND_REALLOC_ALLOCSIZE1_FAMILY_MALLOC]] = { inaccessiblemem_or_argmemonly mustprogress nounwind willreturn allockind("realloc") allocsize(1) "alloc-family"="malloc" }
-; CHECK-DAG: attributes [[INACCESSIBLEMEMORARGONLY_NOFREE_NOUNWIND_WILLRETURN_FAMILY_MALLOC]] = { inaccessiblemem_or_argmemonly mustprogress nofree nounwind willreturn "alloc-family"="malloc" }
+; CHECK-DAG: attributes [[ARGMEMONLY_NOFREE_NOUNWIND]] = { nofree nounwind memory(argmem: readwrite) }
+; CHECK-DAG: attributes [[INACCESSIBLEMEMORARGMEMONLY_NOUNWIND_WILLRETURN_ALLOCKIND_REALLOC_ALLOCSIZE1_FAMILY_MALLOC]] = { mustprogress nounwind willreturn allockind("realloc") allocsize(1) memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" }
+; CHECK-DAG: attributes [[INACCESSIBLEMEMORARGONLY_NOFREE_NOUNWIND_WILLRETURN_FAMILY_MALLOC]] = { mustprogress nofree nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" }
 
-; CHECK-NVPTX-DAG: attributes [[NOFREE_NOUNWIND_READNONE]] = { nofree nosync nounwind readnone }
+; CHECK-NVPTX-DAG: attributes [[NOFREE_NOUNWIND_READNONE]] = { nofree nosync nounwind memory(none) }
 
-; CHECK-AIX-DAG: attributes [[INACCESSIBLEMEMONLY_NOFREE_NOUNWIND_WILLRETURN_ALLOCSIZE0_FAMILY_VEC_MALLOC]] = { inaccessiblememonly mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) "alloc-family"="vec_malloc" }
-; CHECK-AIX-DAG: attributes [[INACCESSIBLEMEMORARGMEMONLY_NOUNWIND_WILLRETURN_FAMILY_VEC_MALLOC]] = { inaccessiblemem_or_argmemonly mustprogress nounwind willreturn allockind("free") "alloc-family"="vec_malloc" }
-; CHECK-AIX-DAG: attributes [[INACCESSIBLEMEMORARGMEMONLY_NOUNWIND_WILLRETURN_ALLOCSIZE_FAMILY_VEC_MALLOC]] = { inaccessiblemem_or_argmemonly mustprogress nounwind willreturn allockind("realloc") allocsize(1) "alloc-family"="vec_malloc" }
-; CHECK-AIX-DAG: attributes [[INACCESSIBLEMEMONLY_NOFREE_NOUNWIND_WILLRETURN_ALLOCSIZE01_FAMILY_VEC_MALLOC]] = { inaccessiblememonly mustprogress nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) "alloc-family"="vec_malloc" }
+; CHECK-AIX-DAG: attributes [[INACCESSIBLEMEMONLY_NOFREE_NOUNWIND_WILLRETURN_ALLOCSIZE0_FAMILY_VEC_MALLOC]] = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="vec_malloc" }
+; CHECK-AIX-DAG: attributes [[INACCESSIBLEMEMORARGMEMONLY_NOUNWIND_WILLRETURN_FAMILY_VEC_MALLOC]] = { mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="vec_malloc" }
+; CHECK-AIX-DAG: attributes [[INACCESSIBLEMEMORARGMEMONLY_NOUNWIND_WILLRETURN_ALLOCSIZE_FAMILY_VEC_MALLOC]] = { mustprogress nounwind willreturn allockind("realloc") allocsize(1) memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="vec_malloc" }
+; CHECK-AIX-DAG: attributes [[INACCESSIBLEMEMONLY_NOFREE_NOUNWIND_WILLRETURN_ALLOCSIZE01_FAMILY_VEC_MALLOC]] = { mustprogress nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) memory(inaccessiblemem: readwrite) "alloc-family"="vec_malloc" }

diff  --git a/llvm/test/Transforms/InferFunctionAttrs/norecurse_debug.ll b/llvm/test/Transforms/InferFunctionAttrs/norecurse_debug.ll
index 9b90f59d3602b..12a59ea02cc88 100644
--- a/llvm/test/Transforms/InferFunctionAttrs/norecurse_debug.ll
+++ b/llvm/test/Transforms/InferFunctionAttrs/norecurse_debug.ll
@@ -52,5 +52,5 @@ attributes #1 = { nounwind readnone speculatable }
 !28 = !DILocation(line: 9, column: 18, scope: !2)
 !29 = !DILocation(line: 10, column: 1, scope: !2)
 
-; CHECK: attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn }
+; CHECK: attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, argmem: write, inaccessiblemem: none) }
 ; CHECK-NOT: foo.coefficient1

diff  --git a/llvm/test/Transforms/InferFunctionAttrs/readonly_and_writeonly.ll b/llvm/test/Transforms/InferFunctionAttrs/readonly_and_writeonly.ll
index bf16bc80242a7..c1a5f11cf94ab 100644
--- a/llvm/test/Transforms/InferFunctionAttrs/readonly_and_writeonly.ll
+++ b/llvm/test/Transforms/InferFunctionAttrs/readonly_and_writeonly.ll
@@ -5,4 +5,4 @@
 ; CHECK: declare double @acos(double) [[NOFREE_NOUNWIND_WILLRETURN_READNONE:#[0-9]+]]
 declare double @acos(double) readonly
 
-; CHECK-DAG: attributes [[NOFREE_NOUNWIND_WILLRETURN_READNONE]] = { mustprogress nofree nosync nounwind readnone willreturn }
+; CHECK-DAG: attributes [[NOFREE_NOUNWIND_WILLRETURN_READNONE]] = { mustprogress nofree nosync nounwind willreturn memory(none) }

diff  --git a/llvm/test/Transforms/Inline/cgscc-update.ll b/llvm/test/Transforms/Inline/cgscc-update.ll
index 5b39d5914f564..b5c30360548c1 100644
--- a/llvm/test/Transforms/Inline/cgscc-update.ll
+++ b/llvm/test/Transforms/Inline/cgscc-update.ll
@@ -9,8 +9,8 @@
 ; CHECK: declare void @unknown()
 declare void @unknown()
 
-; Basic correctness check: this should get annotated as readnone.
-; CHECK: Function Attrs: nounwind readnone
+; Basic correctness check: this should get annotated as memory(none).
+; CHECK: Function Attrs: nounwind memory(none)
 ; CHECK-NEXT: declare void @readnone()
 declare void @readnone() readnone nounwind
 
@@ -26,8 +26,8 @@ entry:
   ret void
 }
 
-; This function should have had 'readnone' deduced for its SCC.
-; CHECK: Function Attrs: nofree noinline nosync nounwind readnone
+; This function should have had 'memory(none)' deduced for its SCC.
+; CHECK: Function Attrs: nofree noinline nosync nounwind memory(none)
 ; CHECK-NEXT: define void @test1_g()
 define void @test1_g() noinline {
 entry:
@@ -35,8 +35,8 @@ entry:
   ret void
 }
 
-; This function should have had 'readnone' deduced for its SCC.
-; CHECK: Function Attrs: nofree noinline nosync nounwind readnone
+; This function should have had 'memory(none)' deduced for its SCC.
+; CHECK: Function Attrs: nofree noinline nosync nounwind memory(none)
 ; CHECK-NEXT: define void @test1_h()
 define void @test1_h() noinline {
 entry:
@@ -58,8 +58,8 @@ entry:
   ret void()* @test2_h
 }
 
-; This function should have had 'readnone' deduced for its SCC.
-; CHECK: Function Attrs: nofree noinline nosync nounwind readnone
+; This function should have had 'memory(none)' deduced for its SCC.
+; CHECK: Function Attrs: nofree noinline nosync nounwind memory(none)
 ; CHECK-NEXT: define void @test2_g()
 define void @test2_g() noinline {
 entry:
@@ -68,8 +68,8 @@ entry:
   ret void
 }
 
-; This function should have had 'readnone' deduced for its SCC.
-; CHECK: Function Attrs: nofree noinline nosync nounwind readnone
+; This function should have had 'memory(none)' deduced for its SCC.
+; CHECK: Function Attrs: nofree noinline nosync nounwind memory(none)
 ; CHECK-NEXT: define void @test2_h()
 define void @test2_h() noinline {
 entry:
@@ -151,8 +151,8 @@ exit:
 ; interesting call graph update for the new call edge. Eventually, we still
 ; form a new SCC and should use that can deduce precise function attrs.
 
-; This function should have had 'readnone' deduced for its SCC.
-; CHECK: Function Attrs: nofree noinline nosync nounwind readnone
+; This function should have had 'memory(none)' deduced for its SCC.
+; CHECK: Function Attrs: nofree noinline nosync nounwind memory(none)
 ; CHECK-NEXT: define void @test4_f1()
 define void @test4_f1() noinline {
 entry:
@@ -174,8 +174,8 @@ entry:
   ret void
 }
 
-; This function should have had 'readnone' deduced for its SCC.
-; CHECK: Function Attrs: nofree noinline nosync nounwind readnone
+; This function should have had 'memory(none)' deduced for its SCC.
+; CHECK: Function Attrs: nofree noinline nosync nounwind memory(none)
 ; CHECK-NEXT: define void @test4_h()
 define void @test4_h() noinline {
 entry:

diff  --git a/llvm/test/Transforms/Inline/inline_invoke.ll b/llvm/test/Transforms/Inline/inline_invoke.ll
index 59df19dc8a0d5..8dfb170b14804 100644
--- a/llvm/test/Transforms/Inline/inline_invoke.ll
+++ b/llvm/test/Transforms/Inline/inline_invoke.ll
@@ -343,7 +343,7 @@ terminate:
 ; CHECK-NEXT: call void @_ZSt9terminatev()
 
 ; CHECK: attributes [[NUW]] = { nounwind }
-; CHECK: attributes #1 = { nounwind readnone }
+; CHECK: attributes #1 = { nounwind memory(none) }
 ; CHECK: attributes #2 = { ssp uwtable }
-; CHECK: attributes #3 = { argmemonly nocallback nofree nosync nounwind willreturn }
+; CHECK: attributes #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
 ; CHECK: attributes #4 = { noreturn nounwind }

diff  --git a/llvm/test/Transforms/InstCombine/AArch64/2012-04-23-Neon-Intrinsics.ll b/llvm/test/Transforms/InstCombine/AArch64/2012-04-23-Neon-Intrinsics.ll
index 2a36dadaba927..56491c5efa4f4 100644
--- a/llvm/test/Transforms/InstCombine/AArch64/2012-04-23-Neon-Intrinsics.ll
+++ b/llvm/test/Transforms/InstCombine/AArch64/2012-04-23-Neon-Intrinsics.ll
@@ -65,6 +65,6 @@ entry:
 declare <4 x i32> @llvm.aarch64.neon.smull.v4i32(<4 x i16>, <4 x i16>) nounwind readnone
 declare <4 x i32> @llvm.aarch64.neon.umull.v4i32(<4 x i16>, <4 x i16>) nounwind readnone
 
-; CHECK: attributes #0 = { nounwind readnone ssp }
-; CHECK: attributes #1 = { nocallback nofree nosync nounwind readnone willreturn }
+; CHECK: attributes #0 = { nounwind ssp memory(none) }
+; CHECK: attributes #1 = { nocallback nofree nosync nounwind willreturn memory(none) }
 ; CHECK: attributes [[NUW]] = { nounwind }

diff  --git a/llvm/test/Transforms/InstCombine/stpncpy-1.ll b/llvm/test/Transforms/InstCombine/stpncpy-1.ll
index 6501ca4c6ff8b..9f9442705d126 100644
--- a/llvm/test/Transforms/InstCombine/stpncpy-1.ll
+++ b/llvm/test/Transforms/InstCombine/stpncpy-1.ll
@@ -448,6 +448,6 @@ define void @call_stpncpy_s(ptr %dst, ptr %src, i64 %n) {
   ret void
 }
 ;.
-; ANY: attributes #[[ATTR0:[0-9]+]] = { argmemonly nocallback nofree nounwind willreturn writeonly }
-; ANY: attributes #[[ATTR1:[0-9]+]] = { argmemonly nocallback nofree nounwind willreturn }
+; ANY: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) }
+; ANY: attributes #[[ATTR1:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
 ;.

diff  --git a/llvm/test/Transforms/LICM/scalar-promote.ll b/llvm/test/Transforms/LICM/scalar-promote.ll
index 972ed74988bd2..479be9d87a01a 100644
--- a/llvm/test/Transforms/LICM/scalar-promote.ll
+++ b/llvm/test/Transforms/LICM/scalar-promote.ll
@@ -600,7 +600,7 @@ Out:
 }
 
 define i8 @test_hoistable_existing_load_sinkable_store_writeonly(ptr dereferenceable(8) %ptr, i8 %start) writeonly {
-; CHECK: Function Attrs: writeonly
+; CHECK: Function Attrs: memory(write)
 ; CHECK-LABEL: @test_hoistable_existing_load_sinkable_store_writeonly(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[PTR_PROMOTED:%.*]] = load i8, ptr [[PTR:%.*]], align 1
@@ -641,7 +641,7 @@ exit:
 
 ; Test case for PR51248.
 define void @test_sink_store_only() writeonly {
-; CHECK: Function Attrs: writeonly
+; CHECK: Function Attrs: memory(write)
 ; CHECK-LABEL: @test_sink_store_only(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    br label [[LOOP_HEADER:%.*]]
@@ -678,7 +678,7 @@ exit:
 }
 
 define void @test_sink_store_to_local_object_only_loop_must_execute() writeonly {
-; CHECK: Function Attrs: writeonly
+; CHECK: Function Attrs: memory(write)
 ; CHECK-LABEL: @test_sink_store_to_local_object_only_loop_must_execute(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[A:%.*]] = alloca i8, align 1
@@ -719,7 +719,7 @@ exit:
 ; The store in the loop may not execute, so we need to introduce a load in the
 ; pre-header. Make sure the writeonly attribute is dropped.
 define void @test_sink_store_to_local_object_only_loop_may_not_execute(i8 %n) writeonly {
-; CHECK: Function Attrs: writeonly
+; CHECK: Function Attrs: memory(write)
 ; CHECK-LABEL: @test_sink_store_to_local_object_only_loop_may_not_execute(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[A:%.*]] = alloca i8, align 1
@@ -761,7 +761,7 @@ exit:
 declare dereferenceable(8) noalias ptr @alloc_writeonly() writeonly
 
 define void @test_sink_store_to_noalias_call_object_only_loop_may_not_execute1(i8 %n) writeonly {
-; CHECK: Function Attrs: writeonly
+; CHECK: Function Attrs: memory(write)
 ; CHECK-LABEL: @test_sink_store_to_noalias_call_object_only_loop_may_not_execute1(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[A:%.*]] = call noalias dereferenceable(8) ptr @alloc_writeonly()
@@ -801,7 +801,7 @@ exit:
 }
 
 define void @test_sink_store_only_no_phi_needed() writeonly {
-; CHECK: Function Attrs: writeonly
+; CHECK: Function Attrs: memory(write)
 ; CHECK-LABEL: @test_sink_store_only_no_phi_needed(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    br label [[LOOP:%.*]]

diff  --git a/llvm/test/Transforms/LICM/strlen.ll b/llvm/test/Transforms/LICM/strlen.ll
index fc47660aaafb7..e4e72b253e05e 100644
--- a/llvm/test/Transforms/LICM/strlen.ll
+++ b/llvm/test/Transforms/LICM/strlen.ll
@@ -13,7 +13,7 @@ loop:
 }
 
 ; CHECK: declare i64 @strlen(ptr nocapture) #0
-; CHECK: attributes #0 = { argmemonly mustprogress nofree nounwind readonly willreturn }
+; CHECK: attributes #0 = { mustprogress nofree nounwind willreturn memory(argmem: read) }
 declare i64 @strlen(ptr)
 
 

diff  --git a/llvm/test/Transforms/LowerMatrixIntrinsics/strided-store-double.ll b/llvm/test/Transforms/LowerMatrixIntrinsics/strided-store-double.ll
index 650afc820b729..e5dec5d06eca3 100644
--- a/llvm/test/Transforms/LowerMatrixIntrinsics/strided-store-double.ll
+++ b/llvm/test/Transforms/LowerMatrixIntrinsics/strided-store-double.ll
@@ -85,4 +85,4 @@ declare void @llvm.matrix.column.major.store.v10f64.i64(<10 x double>, double*,
 
 ; CHECK: declare void @llvm.matrix.column.major.store.v6f64.i64(<6 x double>, double* nocapture writeonly, i64, i1 immarg, i32 immarg, i32 immarg) #0
 ; CHECK: declare void @llvm.matrix.column.major.store.v10f64.i64(<10 x double>, double* nocapture writeonly, i64, i1 immarg, i32 immarg, i32 immarg) #0
-; CHECK: attributes #0 = { argmemonly nocallback nofree nosync nounwind willreturn writeonly }
+; CHECK: attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: write) }

diff  --git a/llvm/test/Transforms/ObjCARC/basic.ll b/llvm/test/Transforms/ObjCARC/basic.ll
index 62ce2cffaf115..8178d48fa8c85 100644
--- a/llvm/test/Transforms/ObjCARC/basic.ll
+++ b/llvm/test/Transforms/ObjCARC/basic.ll
@@ -3073,5 +3073,5 @@ define void @test68(i8* %a, i8* %b) {
 !5 = !{i32 2, !"Debug Info Version", i32 3}
 
 ; CHECK: attributes [[NUW]] = { nounwind }
-; CHECK: attributes #1 = { nocallback nofree nosync nounwind readnone speculatable willreturn }
+; CHECK: attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
 ; CHECK: ![[RELEASE]] = !{}

diff  --git a/llvm/test/Transforms/ObjCARC/ensure-that-exception-unwind-path-is-visited.ll b/llvm/test/Transforms/ObjCARC/ensure-that-exception-unwind-path-is-visited.ll
index 03257d2e5429a..a31be00210286 100644
--- a/llvm/test/Transforms/ObjCARC/ensure-that-exception-unwind-path-is-visited.ll
+++ b/llvm/test/Transforms/ObjCARC/ensure-that-exception-unwind-path-is-visited.ll
@@ -105,7 +105,7 @@ declare void @NSLog(i8*, ...)
 declare void @llvm.dbg.value(metadata, metadata, metadata) nounwind readnone
 
 ; CHECK: attributes #0 = { ssp uwtable }
-; CHECK: attributes #1 = { nocallback nofree nosync nounwind readnone speculatable willreturn }
+; CHECK: attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
 ; CHECK: attributes #2 = { nonlazybind }
 ; CHECK: attributes [[NUW]] = { nounwind }
 ; CHECK: attributes #4 = { noinline ssp uwtable }

diff  --git a/llvm/test/Transforms/ObjCARC/nested.ll b/llvm/test/Transforms/ObjCARC/nested.ll
index e1c46a0861d42..cc947717de46f 100644
--- a/llvm/test/Transforms/ObjCARC/nested.ll
+++ b/llvm/test/Transforms/ObjCARC/nested.ll
@@ -821,5 +821,5 @@ entry:
 
 
 ; CHECK: attributes [[NUW]] = { nounwind }
-; CHECK: attributes #1 = { argmemonly nocallback nofree nounwind willreturn writeonly }
+; CHECK: attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: write) }
 ; CHECK: attributes #2 = { nonlazybind }

diff  --git a/llvm/test/Transforms/ObjCARC/rle-s2l.ll b/llvm/test/Transforms/ObjCARC/rle-s2l.ll
index e13ff35e91f28..d62147875a558 100644
--- a/llvm/test/Transforms/ObjCARC/rle-s2l.ll
+++ b/llvm/test/Transforms/ObjCARC/rle-s2l.ll
@@ -135,4 +135,4 @@ define void @test7(i8** %p, i8* %n, i8** %q, i8* %m) {
 }
 
 ; CHECK: attributes #0 = { nounwind }
-; CHECK: attributes [[RO]] = { readonly }
+; CHECK: attributes [[RO]] = { memory(read) }

diff  --git a/llvm/test/Transforms/OpenMP/add_attributes.ll b/llvm/test/Transforms/OpenMP/add_attributes.ll
index 9d48cd1c7bca5..7ad863c38ef07 100644
--- a/llvm/test/Transforms/OpenMP/add_attributes.ll
+++ b/llvm/test/Transforms/OpenMP/add_attributes.ll
@@ -1211,67 +1211,67 @@ attributes #0 = { noinline cold }
 ; CHECK: ; Function Attrs: cold convergent noinline nounwind
 ; CHECK-NEXT: declare void @__kmpc_barrier_simple_spmd(%struct.ident_t* nocapture nofree readonly, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind willreturn writeonly
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: write)
 ; OPTIMISTIC-NEXT: declare dso_local void @omp_set_num_threads(i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind willreturn writeonly
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: write)
 ; OPTIMISTIC-NEXT: declare dso_local void @omp_set_dynamic(i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind willreturn writeonly
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: write)
 ; OPTIMISTIC-NEXT: declare dso_local void @omp_set_nested(i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind willreturn writeonly
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: write)
 ; OPTIMISTIC-NEXT: declare dso_local void @omp_set_max_active_levels(i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind willreturn writeonly
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: write)
 ; OPTIMISTIC-NEXT: declare dso_local void @omp_set_schedule(i32, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 ; OPTIMISTIC-NEXT: declare dso_local i32 @omp_get_num_threads()
 
 ; OPTIMISTIC-NOT: Function Attrs
 ; OPTIMISTIC: declare dso_local void @use_int(i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 ; OPTIMISTIC-NEXT: declare dso_local i32 @omp_get_dynamic()
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 ; OPTIMISTIC-NEXT: declare dso_local i32 @omp_get_nested()
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 ; OPTIMISTIC-NEXT: declare dso_local i32 @omp_get_max_threads()
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 ; OPTIMISTIC-NEXT: declare dso_local i32 @omp_get_thread_num()
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 ; OPTIMISTIC-NEXT: declare dso_local i32 @omp_get_num_procs()
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 ; OPTIMISTIC-NEXT: declare dso_local i32 @omp_in_parallel()
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 ; OPTIMISTIC-NEXT: declare dso_local i32 @omp_in_final()
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 ; OPTIMISTIC-NEXT: declare dso_local i32 @omp_get_active_level()
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 ; OPTIMISTIC-NEXT: declare dso_local i32 @omp_get_level()
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 ; OPTIMISTIC-NEXT: declare dso_local i32 @omp_get_ancestor_thread_num(i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 ; OPTIMISTIC-NEXT: declare dso_local i32 @omp_get_team_size(i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 ; OPTIMISTIC-NEXT: declare dso_local i32 @omp_get_thread_limit()
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 ; OPTIMISTIC-NEXT: declare dso_local i32 @omp_get_max_active_levels()
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare dso_local void @omp_get_schedule(i32* nocapture writeonly, i32* nocapture writeonly)
 
 ; OPTIMISTIC-NOT: Function Attrs
@@ -1313,7 +1313,7 @@ attributes #0 = { noinline cold }
 ; OPTIMISTIC-NOT: Function Attrs
 ; OPTIMISTIC: declare dso_local void @omp_init_nest_lock_with_hint(%struct.omp_nest_lock_t*, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare dso_local double @omp_get_wtime()
 
 ; OPTIMISTIC-NOT: Function Attrs
@@ -1340,7 +1340,7 @@ attributes #0 = { noinline cold }
 ; OPTIMISTIC-NOT: Function Attrs
 ; OPTIMISTIC: declare dso_local i32 @omp_get_team_num()
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 ; OPTIMISTIC-NEXT: declare dso_local i32 @omp_get_cancellation()
 
 ; OPTIMISTIC-NOT: Function Attrs
@@ -1370,25 +1370,25 @@ attributes #0 = { noinline cold }
 ; OPTIMISTIC-NOT: Function Attrs
 ; OPTIMISTIC: declare dso_local i32 @omp_get_device_num()
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 ; OPTIMISTIC-NEXT: declare dso_local i32 @omp_get_proc_bind()
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 ; OPTIMISTIC-NEXT: declare dso_local i32 @omp_get_num_places()
 
 ; OPTIMISTIC-NOT: Function Attrs
 ; OPTIMISTIC: declare dso_local i32 @omp_get_place_num_procs(i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare dso_local void @omp_get_place_proc_ids(i32, i32* nocapture writeonly)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 ; OPTIMISTIC-NEXT: declare dso_local i32 @omp_get_place_num()
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 ; OPTIMISTIC-NEXT: declare dso_local i32 @omp_get_partition_num_places()
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 ; OPTIMISTIC-NEXT: declare dso_local void @omp_get_partition_place_nums(i32*)
 
 ; OPTIMISTIC-NOT: Function Attrs
@@ -1433,10 +1433,10 @@ attributes #0 = { noinline cold }
 ; OPTIMISTIC-NOT: Function Attrs
 ; OPTIMISTIC: declare dso_local i32 @omp_pause_resource_all(i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 ; OPTIMISTIC-NEXT: declare dso_local i32 @omp_get_supported_active_levels()
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind readonly willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: read)
 ; OPTIMISTIC-NEXT: declare i32 @__kmpc_global_thread_num(%struct.ident_t* nocapture nofree readonly)
 
 ; OPTIMISTIC: ; Function Attrs: nounwind
@@ -1445,25 +1445,25 @@ attributes #0 = { noinline cold }
 ; OPTIMISTIC: ; Function Attrs: convergent nounwind
 ; OPTIMISTIC-NEXT: declare i32 @__kmpc_omp_taskwait(%struct.ident_t* nocapture nofree readonly, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare i32 @__kmpc_omp_taskyield(%struct.ident_t* nocapture nofree readonly, i32, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_push_num_threads(%struct.ident_t* nocapture nofree readonly, i32, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_push_proc_bind(%struct.ident_t* nocapture nofree readonly, i32, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_serialized_parallel(%struct.ident_t* nocapture nofree readonly, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_end_serialized_parallel(%struct.ident_t* nocapture nofree readonly, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare i32 @__kmpc_master(%struct.ident_t* nocapture nofree readonly, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_end_master(%struct.ident_t* nocapture nofree readonly, i32)
 
 ; OPTIMISTIC: ; Function Attrs: convergent nounwind
@@ -1499,43 +1499,43 @@ attributes #0 = { noinline cold }
 ; OPTIMISTIC: ; Function Attrs: convergent nounwind
 ; OPTIMISTIC-NEXT: declare void @__kmpc_end_ordered(%struct.ident_t* nocapture nofree readonly, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_for_static_init_4(%struct.ident_t* nocapture nofree readonly, i32, i32, i32* nocapture nofree, i32* nocapture nofree, i32* nocapture nofree, i32* nocapture nofree, i32, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_for_static_init_4u(%struct.ident_t* nocapture nofree readonly, i32, i32, i32* nocapture nofree, i32* nocapture nofree, i32* nocapture nofree, i32* nocapture nofree, i32, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_for_static_init_8(%struct.ident_t* nocapture nofree readonly, i32, i32, i32* nocapture nofree, i64* nocapture nofree, i64* nocapture nofree, i64* nocapture nofree, i64, i64)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_for_static_init_8u(%struct.ident_t* nocapture nofree readonly, i32, i32, i32* nocapture nofree, i64* nocapture nofree, i64* nocapture nofree, i64* nocapture nofree, i64, i64)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_for_static_fini(%struct.ident_t* nocapture nofree readonly, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_team_static_init_4(%struct.ident_t* nocapture nofree readonly, i32, i32* nocapture nofree, i32* nocapture nofree, i32* nocapture nofree, i32* nocapture nofree, i32, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_team_static_init_4u(%struct.ident_t* nocapture nofree readonly, i32, i32* nocapture nofree, i32* nocapture nofree, i32* nocapture nofree, i32* nocapture nofree, i32, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_team_static_init_8(%struct.ident_t* nocapture nofree readonly, i32, i32* nocapture nofree, i64* nocapture nofree, i64* nocapture nofree, i64* nocapture nofree, i64, i64)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_team_static_init_8u(%struct.ident_t* nocapture nofree readonly, i32, i32* nocapture nofree, i64* nocapture nofree, i64* nocapture nofree, i64* nocapture nofree, i64, i64)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_dist_for_static_init_4(%struct.ident_t* nocapture nofree readonly, i32, i32, i32* nocapture nofree, i32* nocapture nofree, i32* nocapture nofree, i32* nocapture nofree, i32* nocapture nofree, i32, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_dist_for_static_init_4u(%struct.ident_t* nocapture nofree readonly, i32, i32, i32* nocapture nofree, i32* nocapture nofree, i32* nocapture nofree, i32* nocapture nofree, i32* nocapture nofree, i32, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_dist_for_static_init_8(%struct.ident_t* nocapture nofree readonly, i32, i32, i32* nocapture nofree, i64* nocapture nofree, i64* nocapture nofree, i64* nocapture nofree, i64* nocapture nofree, i64, i64)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_dist_for_static_init_8u(%struct.ident_t* nocapture nofree readonly, i32, i32, i32* nocapture nofree, i64* nocapture nofree, i64* nocapture nofree, i64* nocapture nofree, i64* nocapture nofree, i64, i64)
 
 ; OPTIMISTIC: ; Function Attrs: convergent nounwind
@@ -1556,52 +1556,52 @@ attributes #0 = { noinline cold }
 ; OPTIMISTIC: ; Function Attrs: convergent nounwind
 ; OPTIMISTIC-NEXT: declare void @__kmpc_taskgroup(%struct.ident_t* nocapture nofree readonly, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_dist_dispatch_init_4(%struct.ident_t* nocapture nofree readonly, i32, i32, i32* nocapture nofree, i32, i32, i32, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_dist_dispatch_init_4u(%struct.ident_t* nocapture nofree readonly, i32, i32, i32* nocapture nofree, i32, i32, i32, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_dist_dispatch_init_8(%struct.ident_t* nocapture nofree readonly, i32, i32, i32* nocapture nofree, i64, i64, i64, i64)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_dist_dispatch_init_8u(%struct.ident_t* nocapture nofree readonly, i32, i32, i32* nocapture nofree, i64, i64, i64, i64)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_dispatch_init_4(%struct.ident_t* nocapture nofree readonly, i32, i32, i32, i32, i32, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_dispatch_init_4u(%struct.ident_t* nocapture nofree readonly, i32, i32, i32, i32, i32, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_dispatch_init_8(%struct.ident_t* nocapture nofree readonly, i32, i32, i64, i64, i64, i64)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_dispatch_init_8u(%struct.ident_t* nocapture nofree readonly, i32, i32, i64, i64, i64, i64)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare i32 @__kmpc_dispatch_next_4(%struct.ident_t* nocapture nofree readonly, i32, i32* nocapture nofree, i32* nocapture nofree, i32* nocapture nofree, i32* nocapture nofree)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare i32 @__kmpc_dispatch_next_4u(%struct.ident_t* nocapture nofree readonly, i32, i32* nocapture nofree, i32* nocapture nofree, i32* nocapture nofree, i32* nocapture nofree)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare i32 @__kmpc_dispatch_next_8(%struct.ident_t* nocapture nofree readonly, i32, i32* nocapture nofree, i64* nocapture nofree, i64* nocapture nofree, i64* nocapture nofree)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare i32 @__kmpc_dispatch_next_8u(%struct.ident_t* nocapture nofree readonly, i32, i32* nocapture nofree, i64* nocapture nofree, i64* nocapture nofree, i64* nocapture nofree)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_dispatch_fini_4(%struct.ident_t* nocapture nofree readonly, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_dispatch_fini_4u(%struct.ident_t* nocapture nofree readonly, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_dispatch_fini_8(%struct.ident_t* nocapture nofree readonly, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_dispatch_fini_8u(%struct.ident_t* nocapture nofree readonly, i32)
 
 ; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn
@@ -1619,7 +1619,7 @@ attributes #0 = { noinline cold }
 ; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn
 ; OPTIMISTIC-NEXT: declare i32 @__kmpc_cancellationpoint(%struct.ident_t* nocapture nofree readonly, i32, i32)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_push_num_teams(%struct.ident_t* nocapture nofree readonly, i32, i32, i32)
 
 ; OPTIMISTIC: ; Function Attrs: nounwind
@@ -1673,7 +1673,7 @@ attributes #0 = { noinline cold }
 ; OPTIMISTIC: ; Function Attrs: nosync nounwind willreturn
 ; OPTIMISTIC-NEXT: declare void @__kmpc_destroy_allocator(i32, i8*)
 
-; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind willreturn writeonly
+; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn memory(inaccessiblemem: write)
 ; OPTIMISTIC-NEXT: declare void @__kmpc_push_target_tripcount_mapper(%struct.ident_t*, i64, i64)
 
 ; OPTIMISTIC: ; Function Attrs: convergent nounwind

diff  --git a/llvm/test/Transforms/OpenMP/parallel_deletion.ll b/llvm/test/Transforms/OpenMP/parallel_deletion.ll
index ec2f3e219d21d..108499631d196 100644
--- a/llvm/test/Transforms/OpenMP/parallel_deletion.ll
+++ b/llvm/test/Transforms/OpenMP/parallel_deletion.ll
@@ -72,7 +72,7 @@ define internal void @.omp_outlined.willreturn.0(i32* noalias %.global_tid., i32
 ; CHECK-LABEL: define {{[^@]+}}@.omp_outlined.willreturn.0
 ; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    call void @readonly() #[[ATTR4:[0-9]+]]
+; CHECK-NEXT:    call void @readonly()
 ; CHECK-NEXT:    ret void
 ;
 ; CHECK1-LABEL: define {{[^@]+}}@.omp_outlined.willreturn.0
@@ -194,9 +194,9 @@ entry:
 
 define internal void @.omp_outlined..0(i32* noalias %.global_tid., i32* noalias %.bound_tid.) {
 ; CHECK-LABEL: define {{[^@]+}}@.omp_outlined..0
-; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) #[[ATTR4]] {
+; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) #[[ATTR4:[0-9]+]] {
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    call void @readonly() #[[ATTR4]]
+; CHECK-NEXT:    call void @readonly()
 ; CHECK-NEXT:    ret void
 ;
 ; CHECK1-LABEL: define {{[^@]+}}@.omp_outlined..0
@@ -338,7 +338,7 @@ define internal void @.omp_outlined..3(i32* noalias %.global_tid., i32* noalias
 ; CHECK-LABEL: define {{[^@]+}}@.omp_outlined..3
 ; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]], i32* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[A:%.*]]) #[[ATTR6:[0-9]+]] {
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[CALL:%.*]] = call i32 @omp_get_thread_num() #[[ATTR14:[0-9]+]]
+; CHECK-NEXT:    [[CALL:%.*]] = call i32 @omp_get_thread_num() #[[ATTR9:[0-9]+]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[CALL]], 0
 ; CHECK-NEXT:    br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
 ; CHECK:       if.then:
@@ -466,7 +466,7 @@ define internal void @.omp_outlined..5(i32* noalias %.global_tid., i32* noalias
 ; CHECK-LABEL: define {{[^@]+}}@.omp_outlined..5
 ; CHECK-SAME: (i32* noalias nocapture nofree readonly [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]], i32* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[A:%.*]]) {
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[OMP_GLOBAL_THREAD_NUM:%.*]] = call i32 @__kmpc_global_thread_num(%struct.ident_t* noundef nonnull @[[GLOB0]]) #[[ATTR14]]
+; CHECK-NEXT:    [[OMP_GLOBAL_THREAD_NUM:%.*]] = call i32 @__kmpc_global_thread_num(%struct.ident_t* noundef nonnull @[[GLOB0]]) #[[ATTR9]]
 ; CHECK-NEXT:    [[TMP:%.*]] = load i32, i32* [[DOTGLOBAL_TID_]], align 4
 ; CHECK-NEXT:    [[TMP1:%.*]] = call i32 @__kmpc_single(%struct.ident_t* noundef nonnull @[[GLOB0]], i32 [[TMP]])
 ; CHECK-NEXT:    [[TMP2:%.*]] = icmp eq i32 [[TMP1]], 0
@@ -541,7 +541,7 @@ define internal void @.omp_outlined..6(i32* noalias %.global_tid., i32* noalias
 ; CHECK-NEXT:    [[A1:%.*]] = alloca i32, align 4
 ; CHECK-NEXT:    [[DOTOMP_REDUCTION_RED_LIST:%.*]] = alloca [1 x i8*], align 8
 ; CHECK-NEXT:    [[TMP:%.*]] = bitcast i32* [[A1]] to i8*
-; CHECK-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* noundef nonnull align 4 [[TMP]]) #[[ATTR0]]
+; CHECK-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* noundef nonnull align 4 [[TMP]]) #[[ATTR14:[0-9]+]]
 ; CHECK-NEXT:    store i32 1, i32* [[A1]], align 4
 ; CHECK-NEXT:    [[TMP1:%.*]] = bitcast [1 x i8*]* [[DOTOMP_REDUCTION_RED_LIST]] to i32**
 ; CHECK-NEXT:    store i32* [[A1]], i32** [[TMP1]], align 8

diff  --git a/llvm/test/Transforms/OpenMP/remove_globalization.ll b/llvm/test/Transforms/OpenMP/remove_globalization.ll
index 27f4e3e608ec9..3e0abd5deadbd 100644
--- a/llvm/test/Transforms/OpenMP/remove_globalization.ll
+++ b/llvm/test/Transforms/OpenMP/remove_globalization.ll
@@ -83,7 +83,7 @@ define internal void @bar() {
 ; CHECK-SAME: () #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[TMP0:%.*]] = call i8* @__kmpc_alloc_shared(i64 4) #[[ATTR0]], !dbg [[DBG8:![0-9]+]]
-; CHECK-NEXT:    call void @share(i8* nofree [[TMP0]]) #[[ATTR6:[0-9]+]], !dbg [[DBG8]]
+; CHECK-NEXT:    call void @share(i8* nofree [[TMP0]]) #[[ATTR1]], !dbg [[DBG8]]
 ; CHECK-NEXT:    call void @__kmpc_free_shared(i8* [[TMP0]], i64 4) #[[ATTR0]]
 ; CHECK-NEXT:    ret void
 ;
@@ -91,7 +91,7 @@ define internal void @bar() {
 ; CHECK-DISABLED-SAME: () #[[ATTR1:[0-9]+]] {
 ; CHECK-DISABLED-NEXT:  entry:
 ; CHECK-DISABLED-NEXT:    [[TMP0:%.*]] = call i8* @__kmpc_alloc_shared(i64 4) #[[ATTR0]], !dbg [[DBG8:![0-9]+]]
-; CHECK-DISABLED-NEXT:    call void @share(i8* nofree [[TMP0]]) #[[ATTR6:[0-9]+]], !dbg [[DBG8]]
+; CHECK-DISABLED-NEXT:    call void @share(i8* nofree [[TMP0]]) #[[ATTR1]], !dbg [[DBG8]]
 ; CHECK-DISABLED-NEXT:    call void @__kmpc_free_shared(i8* [[TMP0]], i64 4) #[[ATTR0]]
 ; CHECK-DISABLED-NEXT:    ret void
 ;
@@ -257,19 +257,17 @@ declare void @unknown_no_openmp() "llvm.assume"="omp_no_openmp"
 ;.
 ; CHECK: attributes #[[ATTR0]] = { nounwind }
 ; CHECK: attributes #[[ATTR1]] = { nosync nounwind }
-; CHECK: attributes #[[ATTR2]] = { nounwind readnone }
-; CHECK: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind writeonly }
+; CHECK: attributes #[[ATTR2]] = { nounwind memory(none) }
+; CHECK: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind memory(write) }
 ; CHECK: attributes #[[ATTR4:[0-9]+]] = { nosync nounwind allocsize(0) }
 ; CHECK: attributes #[[ATTR5:[0-9]+]] = { "llvm.assume"="omp_no_openmp" }
-; CHECK: attributes #[[ATTR6]] = { nosync nounwind writeonly }
 ;.
 ; CHECK-DISABLED: attributes #[[ATTR0]] = { nounwind }
 ; CHECK-DISABLED: attributes #[[ATTR1]] = { nosync nounwind }
-; CHECK-DISABLED: attributes #[[ATTR2]] = { nounwind readnone }
-; CHECK-DISABLED: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind writeonly }
+; CHECK-DISABLED: attributes #[[ATTR2]] = { nounwind memory(none) }
+; CHECK-DISABLED: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind memory(write) }
 ; CHECK-DISABLED: attributes #[[ATTR4:[0-9]+]] = { nosync nounwind allocsize(0) }
 ; CHECK-DISABLED: attributes #[[ATTR5:[0-9]+]] = { "llvm.assume"="omp_no_openmp" }
-; CHECK-DISABLED: attributes #[[ATTR6]] = { nosync nounwind writeonly }
 ;.
 ; CHECK: [[META0:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 13.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
 ; CHECK: [[META1:![0-9]+]] = !DIFile(filename: "remove_globalization.c", directory: "/tmp/remove_globalization.c")

diff  --git a/llvm/test/Transforms/OpenMP/replace_globalization.ll b/llvm/test/Transforms/OpenMP/replace_globalization.ll
index df2cd952cd278..9651c0e0ad471 100644
--- a/llvm/test/Transforms/OpenMP/replace_globalization.ll
+++ b/llvm/test/Transforms/OpenMP/replace_globalization.ll
@@ -150,8 +150,8 @@ declare void @unknown_no_openmp() "llvm.assume"="omp_no_openmp"
 ; CHECK-NEXT:    [[C:%.*]] = call i32 @__kmpc_target_init(%struct.ident_t* @[[GLOB1]], i8 1, i1 false, i1 true)
 ; CHECK-NEXT:    [[X:%.*]] = call align 4 i8* @__kmpc_alloc_shared(i64 4) #[[ATTR6:[0-9]+]]
 ; CHECK-NEXT:    call void @unknown_no_openmp()
-; CHECK-NEXT:    call void @use.internalized(i8* nofree [[X]]) #[[ATTR7:[0-9]+]]
-; CHECK-NEXT:    call void @__kmpc_free_shared(i8* [[X]], i64 4) #[[ATTR8:[0-9]+]]
+; CHECK-NEXT:    call void @use.internalized(i8* nofree [[X]]) #[[ATTR6]]
+; CHECK-NEXT:    call void @__kmpc_free_shared(i8* [[X]], i64 4) #[[ATTR6]]
 ; CHECK-NEXT:    call void @__kmpc_target_deinit(%struct.ident_t* @[[GLOB1]], i8 1, i1 true)
 ; CHECK-NEXT:    ret void
 ;
@@ -163,14 +163,14 @@ declare void @unknown_no_openmp() "llvm.assume"="omp_no_openmp"
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[C]], -1
 ; CHECK-NEXT:    br i1 [[CMP]], label [[MASTER1:%.*]], label [[EXIT:%.*]]
 ; CHECK:       master1:
-; CHECK-NEXT:    call void @use.internalized(i8* nofree addrspacecast (i8 addrspace(3)* getelementptr inbounds ([16 x i8], [16 x i8] addrspace(3)* @x_shared, i32 0, i32 0) to i8*)) #[[ATTR7]]
+; CHECK-NEXT:    call void @use.internalized(i8* nofree addrspacecast (i8 addrspace(3)* getelementptr inbounds ([16 x i8], [16 x i8] addrspace(3)* @x_shared, i32 0, i32 0) to i8*)) #[[ATTR6]]
 ; CHECK-NEXT:    br label [[NEXT:%.*]]
 ; CHECK:       next:
 ; CHECK-NEXT:    call void @unknown_no_openmp()
 ; CHECK-NEXT:    [[B0:%.*]] = icmp eq i32 [[C]], -1
 ; CHECK-NEXT:    br i1 [[B0]], label [[MASTER2:%.*]], label [[EXIT]]
 ; CHECK:       master2:
-; CHECK-NEXT:    call void @use.internalized(i8* nofree addrspacecast (i8 addrspace(3)* getelementptr inbounds ([4 x i8], [4 x i8] addrspace(3)* @y_shared, i32 0, i32 0) to i8*)) #[[ATTR7]]
+; CHECK-NEXT:    call void @use.internalized(i8* nofree addrspacecast (i8 addrspace(3)* getelementptr inbounds ([4 x i8], [4 x i8] addrspace(3)* @y_shared, i32 0, i32 0) to i8*)) #[[ATTR6]]
 ; CHECK-NEXT:    br label [[EXIT]]
 ; CHECK:       exit:
 ; CHECK-NEXT:    call void @__kmpc_target_deinit(%struct.ident_t* @[[GLOB1]], i8 1, i1 true)
@@ -185,15 +185,15 @@ declare void @unknown_no_openmp() "llvm.assume"="omp_no_openmp"
 ; CHECK-NEXT:    br i1 [[C0]], label [[MASTER3:%.*]], label [[EXIT:%.*]]
 ; CHECK:       master3:
 ; CHECK-NEXT:    [[Z:%.*]] = call align 4 i8* @__kmpc_alloc_shared(i64 24) #[[ATTR6]], !dbg [[DBG10:![0-9]+]]
-; CHECK-NEXT:    call void @use.internalized(i8* nofree [[Z]]) #[[ATTR7]]
-; CHECK-NEXT:    call void @__kmpc_free_shared(i8* [[Z]], i64 24) #[[ATTR8]]
+; CHECK-NEXT:    call void @use.internalized(i8* nofree [[Z]]) #[[ATTR6]]
+; CHECK-NEXT:    call void @__kmpc_free_shared(i8* [[Z]], i64 24) #[[ATTR6]]
 ; CHECK-NEXT:    br label [[EXIT]]
 ; CHECK:       exit:
 ; CHECK-NEXT:    call void @__kmpc_target_deinit(%struct.ident_t* @[[GLOB1]], i8 2, i1 true)
 ; CHECK-NEXT:    ret void
 ;
 ;
-; CHECK: Function Attrs: nofree norecurse nounwind writeonly
+; CHECK: Function Attrs: nofree norecurse nounwind memory(write)
 ; CHECK-LABEL: define {{[^@]+}}@use.internalized
 ; CHECK-SAME: (i8* nofree [[X:%.*]]) #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:  entry:
@@ -208,6 +208,7 @@ declare void @unknown_no_openmp() "llvm.assume"="omp_no_openmp"
 ; CHECK-NEXT:    ret void
 ;
 ;
+; CHECK: Function Attrs: nosync nounwind allocsize(0) memory(read)
 ; CHECK-LABEL: define {{[^@]+}}@__kmpc_alloc_shared
 ; CHECK-SAME: (i64 [[TMP0:%.*]]) #[[ATTR2:[0-9]+]] {
 ; CHECK-NEXT:    [[L:%.*]] = load i32, i32* @offset, align 4
@@ -216,14 +217,12 @@ declare void @unknown_no_openmp() "llvm.assume"="omp_no_openmp"
 ;
 ;.
 ; CHECK: attributes #[[ATTR0]] = { "kernel" }
-; CHECK: attributes #[[ATTR1]] = { nofree norecurse nounwind writeonly }
-; CHECK: attributes #[[ATTR2]] = { nosync nounwind readonly allocsize(0) }
+; CHECK: attributes #[[ATTR1]] = { nofree norecurse nounwind memory(write) }
+; CHECK: attributes #[[ATTR2]] = { nosync nounwind allocsize(0) memory(read) }
 ; CHECK: attributes #[[ATTR3:[0-9]+]] = { nosync nounwind }
-; CHECK: attributes #[[ATTR4:[0-9]+]] = { nocallback nofree nosync nounwind readnone speculatable willreturn }
+; CHECK: attributes #[[ATTR4:[0-9]+]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
 ; CHECK: attributes #[[ATTR5:[0-9]+]] = { "llvm.assume"="omp_no_openmp" }
-; CHECK: attributes #[[ATTR6]] = { nounwind readonly }
-; CHECK: attributes #[[ATTR7]] = { nounwind writeonly }
-; CHECK: attributes #[[ATTR8]] = { nounwind }
+; CHECK: attributes #[[ATTR6]] = { nounwind }
 ;.
 ; CHECK: [[META0:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 12.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
 ; CHECK: [[META1:![0-9]+]] = !DIFile(filename: "replace_globalization.c", directory: "/tmp/replace_globalization.c")

diff  --git a/llvm/test/Transforms/OpenMP/spmdization.ll b/llvm/test/Transforms/OpenMP/spmdization.ll
index 0841600da2456..c707256b12c96 100644
--- a/llvm/test/Transforms/OpenMP/spmdization.ll
+++ b/llvm/test/Transforms/OpenMP/spmdization.ll
@@ -702,9 +702,9 @@ define internal void @__omp_outlined__2(i32* noalias %.global_tid., i32* noalias
 ; AMDGPU-LABEL: define {{[^@]+}}@__omp_outlined__2
 ; AMDGPU-SAME: (i32* noalias [[DOTGLOBAL_TID_:%.*]], i32* noalias [[DOTBOUND_TID_:%.*]]) #[[ATTR0]] {
 ; AMDGPU-NEXT:  entry:
-; AMDGPU-NEXT:    [[TMP0:%.*]] = alloca i8, i64 4, align 4, addrspace(5)
+; AMDGPU-NEXT:    [[X_H2S:%.*]] = alloca i8, i64 4, align 4, addrspace(5)
 ; AMDGPU-NEXT:    [[CAPTURED_VARS_ADDRS:%.*]] = alloca [0 x i8*], align 8
-; AMDGPU-NEXT:    [[MALLOC_CAST:%.*]] = addrspacecast i8 addrspace(5)* [[TMP0]] to i8*
+; AMDGPU-NEXT:    [[MALLOC_CAST:%.*]] = addrspacecast i8 addrspace(5)* [[X_H2S]] to i8*
 ; AMDGPU-NEXT:    [[X_ON_STACK:%.*]] = bitcast i8* [[MALLOC_CAST]] to i32*
 ; AMDGPU-NEXT:    call void @use(i32* nocapture [[X_ON_STACK]]) #[[ATTR7]]
 ; AMDGPU-NEXT:    br label [[FOR_COND:%.*]]
@@ -716,18 +716,18 @@ define internal void @__omp_outlined__2(i32* noalias %.global_tid., i32* noalias
 ; AMDGPU-NEXT:    call void @spmd_amenable() #[[ATTR7]]
 ; AMDGPU-NEXT:    ret void
 ; AMDGPU:       for.body:
-; AMDGPU-NEXT:    [[TMP1:%.*]] = load i32, i32* [[DOTGLOBAL_TID_]], align 4, !tbaa [[TBAA18]]
-; AMDGPU-NEXT:    [[TMP2:%.*]] = bitcast [0 x i8*]* [[CAPTURED_VARS_ADDRS]] to i8**
-; AMDGPU-NEXT:    call void @__kmpc_parallel_51(%struct.ident_t* @[[GLOB1]], i32 [[TMP1]], i32 1, i32 -1, i32 -1, i8* bitcast (void (i32*, i32*)* @__omp_outlined__3 to i8*), i8* bitcast (void (i16, i32)* @__omp_outlined__3_wrapper to i8*), i8** [[TMP2]], i64 0)
+; AMDGPU-NEXT:    [[TMP0:%.*]] = load i32, i32* [[DOTGLOBAL_TID_]], align 4, !tbaa [[TBAA18]]
+; AMDGPU-NEXT:    [[TMP1:%.*]] = bitcast [0 x i8*]* [[CAPTURED_VARS_ADDRS]] to i8**
+; AMDGPU-NEXT:    call void @__kmpc_parallel_51(%struct.ident_t* @[[GLOB1]], i32 [[TMP0]], i32 1, i32 -1, i32 -1, i8* bitcast (void (i32*, i32*)* @__omp_outlined__3 to i8*), i8* bitcast (void (i16, i32)* @__omp_outlined__3_wrapper to i8*), i8** [[TMP1]], i64 0)
 ; AMDGPU-NEXT:    [[INC]] = add nsw i32 [[I_0]], 1
 ; AMDGPU-NEXT:    br label [[FOR_COND]], !llvm.loop [[LOOP25:![0-9]+]]
 ;
 ; NVPTX-LABEL: define {{[^@]+}}@__omp_outlined__2
 ; NVPTX-SAME: (i32* noalias [[DOTGLOBAL_TID_:%.*]], i32* noalias [[DOTBOUND_TID_:%.*]]) #[[ATTR0]] {
 ; NVPTX-NEXT:  entry:
-; NVPTX-NEXT:    [[TMP0:%.*]] = alloca i8, i64 4, align 4
+; NVPTX-NEXT:    [[X_H2S:%.*]] = alloca i8, i64 4, align 4
 ; NVPTX-NEXT:    [[CAPTURED_VARS_ADDRS:%.*]] = alloca [0 x i8*], align 8
-; NVPTX-NEXT:    [[X_ON_STACK:%.*]] = bitcast i8* [[TMP0]] to i32*
+; NVPTX-NEXT:    [[X_ON_STACK:%.*]] = bitcast i8* [[X_H2S]] to i32*
 ; NVPTX-NEXT:    call void @use(i32* nocapture [[X_ON_STACK]]) #[[ATTR7]]
 ; NVPTX-NEXT:    br label [[FOR_COND:%.*]]
 ; NVPTX:       for.cond:
@@ -738,18 +738,18 @@ define internal void @__omp_outlined__2(i32* noalias %.global_tid., i32* noalias
 ; NVPTX-NEXT:    call void @spmd_amenable() #[[ATTR7]]
 ; NVPTX-NEXT:    ret void
 ; NVPTX:       for.body:
-; NVPTX-NEXT:    [[TMP1:%.*]] = load i32, i32* [[DOTGLOBAL_TID_]], align 4, !tbaa [[TBAA18]]
-; NVPTX-NEXT:    [[TMP2:%.*]] = bitcast [0 x i8*]* [[CAPTURED_VARS_ADDRS]] to i8**
-; NVPTX-NEXT:    call void @__kmpc_parallel_51(%struct.ident_t* @[[GLOB1]], i32 [[TMP1]], i32 1, i32 -1, i32 -1, i8* bitcast (void (i32*, i32*)* @__omp_outlined__3 to i8*), i8* bitcast (void (i16, i32)* @__omp_outlined__3_wrapper to i8*), i8** [[TMP2]], i64 0)
+; NVPTX-NEXT:    [[TMP0:%.*]] = load i32, i32* [[DOTGLOBAL_TID_]], align 4, !tbaa [[TBAA18]]
+; NVPTX-NEXT:    [[TMP1:%.*]] = bitcast [0 x i8*]* [[CAPTURED_VARS_ADDRS]] to i8**
+; NVPTX-NEXT:    call void @__kmpc_parallel_51(%struct.ident_t* @[[GLOB1]], i32 [[TMP0]], i32 1, i32 -1, i32 -1, i8* bitcast (void (i32*, i32*)* @__omp_outlined__3 to i8*), i8* bitcast (void (i16, i32)* @__omp_outlined__3_wrapper to i8*), i8** [[TMP1]], i64 0)
 ; NVPTX-NEXT:    [[INC]] = add nsw i32 [[I_0]], 1
 ; NVPTX-NEXT:    br label [[FOR_COND]], !llvm.loop [[LOOP25:![0-9]+]]
 ;
 ; AMDGPU-DISABLED-LABEL: define {{[^@]+}}@__omp_outlined__2
 ; AMDGPU-DISABLED-SAME: (i32* noalias [[DOTGLOBAL_TID_:%.*]], i32* noalias [[DOTBOUND_TID_:%.*]]) #[[ATTR0]] {
 ; AMDGPU-DISABLED-NEXT:  entry:
-; AMDGPU-DISABLED-NEXT:    [[TMP0:%.*]] = alloca i8, i64 4, align 4, addrspace(5)
+; AMDGPU-DISABLED-NEXT:    [[X_H2S:%.*]] = alloca i8, i64 4, align 4, addrspace(5)
 ; AMDGPU-DISABLED-NEXT:    [[CAPTURED_VARS_ADDRS:%.*]] = alloca [0 x i8*], align 8
-; AMDGPU-DISABLED-NEXT:    [[MALLOC_CAST:%.*]] = addrspacecast i8 addrspace(5)* [[TMP0]] to i8*
+; AMDGPU-DISABLED-NEXT:    [[MALLOC_CAST:%.*]] = addrspacecast i8 addrspace(5)* [[X_H2S]] to i8*
 ; AMDGPU-DISABLED-NEXT:    [[X_ON_STACK:%.*]] = bitcast i8* [[MALLOC_CAST]] to i32*
 ; AMDGPU-DISABLED-NEXT:    call void @use(i32* nocapture [[X_ON_STACK]]) #[[ATTR7]]
 ; AMDGPU-DISABLED-NEXT:    br label [[FOR_COND:%.*]]
@@ -761,18 +761,18 @@ define internal void @__omp_outlined__2(i32* noalias %.global_tid., i32* noalias
 ; AMDGPU-DISABLED-NEXT:    call void @spmd_amenable() #[[ATTR7]]
 ; AMDGPU-DISABLED-NEXT:    ret void
 ; AMDGPU-DISABLED:       for.body:
-; AMDGPU-DISABLED-NEXT:    [[TMP1:%.*]] = load i32, i32* [[DOTGLOBAL_TID_]], align 4, !tbaa [[TBAA18]]
-; AMDGPU-DISABLED-NEXT:    [[TMP2:%.*]] = bitcast [0 x i8*]* [[CAPTURED_VARS_ADDRS]] to i8**
-; AMDGPU-DISABLED-NEXT:    call void @__kmpc_parallel_51(%struct.ident_t* @[[GLOB1]], i32 [[TMP1]], i32 1, i32 -1, i32 -1, i8* bitcast (void (i32*, i32*)* @__omp_outlined__3 to i8*), i8* @__omp_outlined__3_wrapper.ID, i8** [[TMP2]], i64 0)
+; AMDGPU-DISABLED-NEXT:    [[TMP0:%.*]] = load i32, i32* [[DOTGLOBAL_TID_]], align 4, !tbaa [[TBAA18]]
+; AMDGPU-DISABLED-NEXT:    [[TMP1:%.*]] = bitcast [0 x i8*]* [[CAPTURED_VARS_ADDRS]] to i8**
+; AMDGPU-DISABLED-NEXT:    call void @__kmpc_parallel_51(%struct.ident_t* @[[GLOB1]], i32 [[TMP0]], i32 1, i32 -1, i32 -1, i8* bitcast (void (i32*, i32*)* @__omp_outlined__3 to i8*), i8* @__omp_outlined__3_wrapper.ID, i8** [[TMP1]], i64 0)
 ; AMDGPU-DISABLED-NEXT:    [[INC]] = add nsw i32 [[I_0]], 1
 ; AMDGPU-DISABLED-NEXT:    br label [[FOR_COND]], !llvm.loop [[LOOP25:![0-9]+]]
 ;
 ; NVPTX-DISABLED-LABEL: define {{[^@]+}}@__omp_outlined__2
 ; NVPTX-DISABLED-SAME: (i32* noalias [[DOTGLOBAL_TID_:%.*]], i32* noalias [[DOTBOUND_TID_:%.*]]) #[[ATTR0]] {
 ; NVPTX-DISABLED-NEXT:  entry:
-; NVPTX-DISABLED-NEXT:    [[TMP0:%.*]] = alloca i8, i64 4, align 4
+; NVPTX-DISABLED-NEXT:    [[X_H2S:%.*]] = alloca i8, i64 4, align 4
 ; NVPTX-DISABLED-NEXT:    [[CAPTURED_VARS_ADDRS:%.*]] = alloca [0 x i8*], align 8
-; NVPTX-DISABLED-NEXT:    [[X_ON_STACK:%.*]] = bitcast i8* [[TMP0]] to i32*
+; NVPTX-DISABLED-NEXT:    [[X_ON_STACK:%.*]] = bitcast i8* [[X_H2S]] to i32*
 ; NVPTX-DISABLED-NEXT:    call void @use(i32* nocapture [[X_ON_STACK]]) #[[ATTR7]]
 ; NVPTX-DISABLED-NEXT:    br label [[FOR_COND:%.*]]
 ; NVPTX-DISABLED:       for.cond:
@@ -783,9 +783,9 @@ define internal void @__omp_outlined__2(i32* noalias %.global_tid., i32* noalias
 ; NVPTX-DISABLED-NEXT:    call void @spmd_amenable() #[[ATTR7]]
 ; NVPTX-DISABLED-NEXT:    ret void
 ; NVPTX-DISABLED:       for.body:
-; NVPTX-DISABLED-NEXT:    [[TMP1:%.*]] = load i32, i32* [[DOTGLOBAL_TID_]], align 4, !tbaa [[TBAA18]]
-; NVPTX-DISABLED-NEXT:    [[TMP2:%.*]] = bitcast [0 x i8*]* [[CAPTURED_VARS_ADDRS]] to i8**
-; NVPTX-DISABLED-NEXT:    call void @__kmpc_parallel_51(%struct.ident_t* @[[GLOB1]], i32 [[TMP1]], i32 1, i32 -1, i32 -1, i8* bitcast (void (i32*, i32*)* @__omp_outlined__3 to i8*), i8* @__omp_outlined__3_wrapper.ID, i8** [[TMP2]], i64 0)
+; NVPTX-DISABLED-NEXT:    [[TMP0:%.*]] = load i32, i32* [[DOTGLOBAL_TID_]], align 4, !tbaa [[TBAA18]]
+; NVPTX-DISABLED-NEXT:    [[TMP1:%.*]] = bitcast [0 x i8*]* [[CAPTURED_VARS_ADDRS]] to i8**
+; NVPTX-DISABLED-NEXT:    call void @__kmpc_parallel_51(%struct.ident_t* @[[GLOB1]], i32 [[TMP0]], i32 1, i32 -1, i32 -1, i8* bitcast (void (i32*, i32*)* @__omp_outlined__3 to i8*), i8* @__omp_outlined__3_wrapper.ID, i8** [[TMP1]], i64 0)
 ; NVPTX-DISABLED-NEXT:    [[INC]] = add nsw i32 [[I_0]], 1
 ; NVPTX-DISABLED-NEXT:    br label [[FOR_COND]], !llvm.loop [[LOOP25:![0-9]+]]
 ;
@@ -2426,7 +2426,7 @@ attributes #11 = { convergent }
 ; AMDGPU: attributes #[[ATTR6:[0-9]+]] = { nofree nosync nounwind allocsize(0) }
 ; AMDGPU: attributes #[[ATTR7]] = { convergent "llvm.assume"="ompx_spmd_amenable" }
 ; AMDGPU: attributes #[[ATTR8]] = { convergent }
-; AMDGPU: attributes #[[ATTR9:[0-9]+]] = { argmemonly nocallback nofree nosync nounwind willreturn }
+; AMDGPU: attributes #[[ATTR9:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
 ; AMDGPU: attributes #[[ATTR10:[0-9]+]] = { alwaysinline }
 ; AMDGPU: attributes #[[ATTR11:[0-9]+]] = { convergent nounwind }
 ;.
@@ -2439,7 +2439,7 @@ attributes #11 = { convergent }
 ; NVPTX: attributes #[[ATTR6:[0-9]+]] = { nofree nosync nounwind allocsize(0) }
 ; NVPTX: attributes #[[ATTR7]] = { convergent "llvm.assume"="ompx_spmd_amenable" }
 ; NVPTX: attributes #[[ATTR8]] = { convergent }
-; NVPTX: attributes #[[ATTR9:[0-9]+]] = { argmemonly nocallback nofree nosync nounwind willreturn }
+; NVPTX: attributes #[[ATTR9:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
 ; NVPTX: attributes #[[ATTR10:[0-9]+]] = { alwaysinline }
 ; NVPTX: attributes #[[ATTR11:[0-9]+]] = { convergent nounwind }
 ;.
@@ -2452,7 +2452,7 @@ attributes #11 = { convergent }
 ; AMDGPU-DISABLED: attributes #[[ATTR6:[0-9]+]] = { nofree nosync nounwind allocsize(0) }
 ; AMDGPU-DISABLED: attributes #[[ATTR7]] = { convergent "llvm.assume"="ompx_spmd_amenable" }
 ; AMDGPU-DISABLED: attributes #[[ATTR8]] = { convergent }
-; AMDGPU-DISABLED: attributes #[[ATTR9:[0-9]+]] = { argmemonly nocallback nofree nosync nounwind willreturn }
+; AMDGPU-DISABLED: attributes #[[ATTR9:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
 ; AMDGPU-DISABLED: attributes #[[ATTR10:[0-9]+]] = { alwaysinline }
 ; AMDGPU-DISABLED: attributes #[[ATTR11:[0-9]+]] = { convergent nounwind }
 ;.
@@ -2465,7 +2465,7 @@ attributes #11 = { convergent }
 ; NVPTX-DISABLED: attributes #[[ATTR6:[0-9]+]] = { nofree nosync nounwind allocsize(0) }
 ; NVPTX-DISABLED: attributes #[[ATTR7]] = { convergent "llvm.assume"="ompx_spmd_amenable" }
 ; NVPTX-DISABLED: attributes #[[ATTR8]] = { convergent }
-; NVPTX-DISABLED: attributes #[[ATTR9:[0-9]+]] = { argmemonly nocallback nofree nosync nounwind willreturn }
+; NVPTX-DISABLED: attributes #[[ATTR9:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
 ; NVPTX-DISABLED: attributes #[[ATTR10:[0-9]+]] = { alwaysinline }
 ; NVPTX-DISABLED: attributes #[[ATTR11:[0-9]+]] = { convergent nounwind }
 ;.

diff  --git a/llvm/test/Transforms/OpenMP/spmdization_assumes.ll b/llvm/test/Transforms/OpenMP/spmdization_assumes.ll
index 6c7fcd30f3de6..3d58485871918 100644
--- a/llvm/test/Transforms/OpenMP/spmdization_assumes.ll
+++ b/llvm/test/Transforms/OpenMP/spmdization_assumes.ll
@@ -146,7 +146,7 @@ attributes #6 = { convergent nounwind "llvm.assume"="ompx_spmd_amenable" }
 !11 = !{!"Simple C/C++ TBAA"}
 ;.
 ; CHECK: attributes #[[ATTR0]] = { alwaysinline convergent norecurse nounwind "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
-; CHECK: attributes #[[ATTR1]] = { alwaysinline mustprogress nofree norecurse nosync nounwind readnone willreturn "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
+; CHECK: attributes #[[ATTR1]] = { alwaysinline mustprogress nofree norecurse nosync nounwind willreturn memory(none) "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
 ; CHECK: attributes #[[ATTR2]] = { norecurse nounwind "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
 ; CHECK: attributes #[[ATTR3]] = { nounwind }
 ; CHECK: attributes #[[ATTR4:[0-9]+]] = { alwaysinline }

diff  --git a/llvm/test/Transforms/OpenMP/spmdization_guarding.ll b/llvm/test/Transforms/OpenMP/spmdization_guarding.ll
index fa5a2ee8c7f73..411d73a066c02 100644
--- a/llvm/test/Transforms/OpenMP/spmdization_guarding.ll
+++ b/llvm/test/Transforms/OpenMP/spmdization_guarding.ll
@@ -396,11 +396,11 @@ attributes #5 = { convergent nounwind "llvm.assume"="omp_no_openmp,ompx_spmd_ame
 ; CHECK: attributes #[[ATTR0]] = { convergent norecurse nounwind "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="sm_53" "target-features"="+ptx32,+sm_53" }
 ; CHECK: attributes #[[ATTR1:[0-9]+]] = { alwaysinline }
 ; CHECK: attributes #[[ATTR2:[0-9]+]] = { convergent "frame-pointer"="all" "llvm.assume"="omp_no_openmp,ompx_spmd_amenable" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="sm_53" "target-features"="+ptx32,+sm_53" }
-; CHECK: attributes #[[ATTR3:[0-9]+]] = { convergent nounwind readonly willreturn "frame-pointer"="all" "llvm.assume"="ompx_spmd_amenable" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="sm_53" "target-features"="+ptx32,+sm_53" }
+; CHECK: attributes #[[ATTR3:[0-9]+]] = { convergent nounwind willreturn memory(read) "frame-pointer"="all" "llvm.assume"="ompx_spmd_amenable" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="sm_53" "target-features"="+ptx32,+sm_53" }
 ; CHECK: attributes #[[ATTR4:[0-9]+]] = { nosync nounwind allocsize(0) }
 ; CHECK: attributes #[[ATTR5:[0-9]+]] = { nosync nounwind }
 ; CHECK: attributes #[[ATTR6]] = { nounwind }
-; CHECK: attributes #[[ATTR7:[0-9]+]] = { inaccessiblememonly nocallback nofree nosync nounwind willreturn }
+; CHECK: attributes #[[ATTR7:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite) }
 ; CHECK: attributes #[[ATTR8:[0-9]+]] = { convergent nounwind }
 ; CHECK: attributes #[[ATTR9]] = { nounwind willreturn }
 ; CHECK: attributes #[[ATTR10]] = { convergent nounwind "llvm.assume"="omp_no_openmp,ompx_spmd_amenable" }
@@ -408,11 +408,11 @@ attributes #5 = { convergent nounwind "llvm.assume"="omp_no_openmp,ompx_spmd_ame
 ; CHECK-DISABLED: attributes #[[ATTR0]] = { convergent norecurse nounwind "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="sm_53" "target-features"="+ptx32,+sm_53" }
 ; CHECK-DISABLED: attributes #[[ATTR1:[0-9]+]] = { alwaysinline }
 ; CHECK-DISABLED: attributes #[[ATTR2:[0-9]+]] = { convergent "frame-pointer"="all" "llvm.assume"="omp_no_openmp,ompx_spmd_amenable" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="sm_53" "target-features"="+ptx32,+sm_53" }
-; CHECK-DISABLED: attributes #[[ATTR3:[0-9]+]] = { convergent nounwind readonly willreturn "frame-pointer"="all" "llvm.assume"="ompx_spmd_amenable" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="sm_53" "target-features"="+ptx32,+sm_53" }
+; CHECK-DISABLED: attributes #[[ATTR3:[0-9]+]] = { convergent nounwind willreturn memory(read) "frame-pointer"="all" "llvm.assume"="ompx_spmd_amenable" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="sm_53" "target-features"="+ptx32,+sm_53" }
 ; CHECK-DISABLED: attributes #[[ATTR4:[0-9]+]] = { nosync nounwind allocsize(0) }
 ; CHECK-DISABLED: attributes #[[ATTR5:[0-9]+]] = { nosync nounwind }
 ; CHECK-DISABLED: attributes #[[ATTR6]] = { nounwind }
-; CHECK-DISABLED: attributes #[[ATTR7:[0-9]+]] = { inaccessiblememonly nocallback nofree nosync nounwind willreturn }
+; CHECK-DISABLED: attributes #[[ATTR7:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite) }
 ; CHECK-DISABLED: attributes #[[ATTR8:[0-9]+]] = { convergent nounwind }
 ; CHECK-DISABLED: attributes #[[ATTR9]] = { nounwind willreturn }
 ; CHECK-DISABLED: attributes #[[ATTR10]] = { convergent nounwind "llvm.assume"="omp_no_openmp,ompx_spmd_amenable" }

diff  --git a/llvm/test/Transforms/OpenMP/spmdization_guarding_two_reaching_kernels.ll b/llvm/test/Transforms/OpenMP/spmdization_guarding_two_reaching_kernels.ll
index 5896d4166e2cb..e49de449e5113 100644
--- a/llvm/test/Transforms/OpenMP/spmdization_guarding_two_reaching_kernels.ll
+++ b/llvm/test/Transforms/OpenMP/spmdization_guarding_two_reaching_kernels.ll
@@ -155,7 +155,7 @@ define weak void @__omp_offloading_2b_10393b5_generic_l20() #0 {
 ; CHECK-NEXT:    [[EXEC_USER_CODE:%.*]] = icmp eq i32 [[TMP0]], -1
 ; CHECK-NEXT:    br i1 [[EXEC_USER_CODE]], label [[USER_CODE_ENTRY:%.*]], label [[WORKER_EXIT:%.*]]
 ; CHECK:       user_code.entry:
-; CHECK-NEXT:    call void @generic_helper() #[[ATTR6:[0-9]+]]
+; CHECK-NEXT:    call void @generic_helper() #[[ATTR5]]
 ; CHECK-NEXT:    call void @__kmpc_target_deinit(%struct.ident_t* @[[GLOB1]], i8 2, i1 false)
 ; CHECK-NEXT:    ret void
 ; CHECK:       worker.exit:
@@ -168,7 +168,7 @@ define weak void @__omp_offloading_2b_10393b5_generic_l20() #0 {
 ; CHECK-DISABLE-SPMDIZATION-NEXT:    [[EXEC_USER_CODE:%.*]] = icmp eq i32 [[TMP0]], -1
 ; CHECK-DISABLE-SPMDIZATION-NEXT:    br i1 [[EXEC_USER_CODE]], label [[USER_CODE_ENTRY:%.*]], label [[WORKER_EXIT:%.*]]
 ; CHECK-DISABLE-SPMDIZATION:       user_code.entry:
-; CHECK-DISABLE-SPMDIZATION-NEXT:    call void @generic_helper() #[[ATTR6:[0-9]+]]
+; CHECK-DISABLE-SPMDIZATION-NEXT:    call void @generic_helper() #[[ATTR5]]
 ; CHECK-DISABLE-SPMDIZATION-NEXT:    call void @__kmpc_target_deinit(%struct.ident_t* @[[GLOB1]], i8 1, i1 true)
 ; CHECK-DISABLE-SPMDIZATION-NEXT:    ret void
 ; CHECK-DISABLE-SPMDIZATION:       worker.exit:
@@ -194,7 +194,7 @@ define internal void @spmd_helper() #1 {
 ; CHECK-SAME: () #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[CAPTURED_VARS_ADDRS:%.*]] = alloca [0 x i8*], align 8
-; CHECK-NEXT:    call void @leaf() #[[ATTR6]]
+; CHECK-NEXT:    call void @leaf() #[[ATTR5]]
 ; CHECK-NEXT:    [[TMP0:%.*]] = call i32 @__kmpc_global_thread_num(%struct.ident_t* @[[GLOB2]]) #[[ATTR2:[0-9]+]]
 ; CHECK-NEXT:    [[TMP1:%.*]] = bitcast [0 x i8*]* [[CAPTURED_VARS_ADDRS]] to i8**
 ; CHECK-NEXT:    call void @__kmpc_parallel_51(%struct.ident_t* @[[GLOB2]], i32 [[TMP0]], i32 1, i32 -1, i32 -1, i8* bitcast (void (i32*, i32*)* @__omp_outlined__ to i8*), i8* bitcast (void (i16, i32)* @__omp_outlined___wrapper to i8*), i8** [[TMP1]], i64 0)
@@ -204,7 +204,7 @@ define internal void @spmd_helper() #1 {
 ; CHECK-DISABLE-SPMDIZATION-SAME: () #[[ATTR1:[0-9]+]] {
 ; CHECK-DISABLE-SPMDIZATION-NEXT:  entry:
 ; CHECK-DISABLE-SPMDIZATION-NEXT:    [[CAPTURED_VARS_ADDRS:%.*]] = alloca [0 x i8*], align 8
-; CHECK-DISABLE-SPMDIZATION-NEXT:    call void @leaf() #[[ATTR6]]
+; CHECK-DISABLE-SPMDIZATION-NEXT:    call void @leaf() #[[ATTR5]]
 ; CHECK-DISABLE-SPMDIZATION-NEXT:    [[TMP0:%.*]] = call i32 @__kmpc_global_thread_num(%struct.ident_t* @[[GLOB2]]) #[[ATTR2:[0-9]+]]
 ; CHECK-DISABLE-SPMDIZATION-NEXT:    [[TMP1:%.*]] = bitcast [0 x i8*]* [[CAPTURED_VARS_ADDRS]] to i8**
 ; CHECK-DISABLE-SPMDIZATION-NEXT:    call void @__kmpc_parallel_51(%struct.ident_t* @[[GLOB2]], i32 [[TMP0]], i32 1, i32 -1, i32 -1, i8* bitcast (void (i32*, i32*)* @__omp_outlined__ to i8*), i8* @__omp_outlined___wrapper.ID, i8** [[TMP1]], i64 0)
@@ -226,7 +226,7 @@ define internal void @__omp_outlined__(i32* noalias %.global_tid., i32* noalias
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[DOTGLOBAL_TID__ADDR:%.*]] = alloca i32*, align 8
 ; CHECK-NEXT:    [[DOTBOUND_TID__ADDR:%.*]] = alloca i32*, align 8
-; CHECK-NEXT:    call void @unknown() #[[ATTR7:[0-9]+]]
+; CHECK-NEXT:    call void @unknown() #[[ATTR6:[0-9]+]]
 ; CHECK-NEXT:    ret void
 ;
 ; CHECK-DISABLE-SPMDIZATION-LABEL: define {{[^@]+}}@__omp_outlined__
@@ -234,7 +234,7 @@ define internal void @__omp_outlined__(i32* noalias %.global_tid., i32* noalias
 ; CHECK-DISABLE-SPMDIZATION-NEXT:  entry:
 ; CHECK-DISABLE-SPMDIZATION-NEXT:    [[DOTGLOBAL_TID__ADDR:%.*]] = alloca i32*, align 8
 ; CHECK-DISABLE-SPMDIZATION-NEXT:    [[DOTBOUND_TID__ADDR:%.*]] = alloca i32*, align 8
-; CHECK-DISABLE-SPMDIZATION-NEXT:    call void @unknown() #[[ATTR7:[0-9]+]]
+; CHECK-DISABLE-SPMDIZATION-NEXT:    call void @unknown() #[[ATTR6:[0-9]+]]
 ; CHECK-DISABLE-SPMDIZATION-NEXT:    ret void
 ;
 entry:
@@ -328,13 +328,13 @@ define internal void @generic_helper() #1 {
 ; CHECK-LABEL: define {{[^@]+}}@generic_helper
 ; CHECK-SAME: () #[[ATTR4]] {
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    call void @leaf() #[[ATTR6]]
+; CHECK-NEXT:    call void @leaf() #[[ATTR5]]
 ; CHECK-NEXT:    ret void
 ;
 ; CHECK-DISABLE-SPMDIZATION-LABEL: define {{[^@]+}}@generic_helper
 ; CHECK-DISABLE-SPMDIZATION-SAME: () #[[ATTR4]] {
 ; CHECK-DISABLE-SPMDIZATION-NEXT:  entry:
-; CHECK-DISABLE-SPMDIZATION-NEXT:    call void @leaf() #[[ATTR6]]
+; CHECK-DISABLE-SPMDIZATION-NEXT:    call void @leaf() #[[ATTR5]]
 ; CHECK-DISABLE-SPMDIZATION-NEXT:    ret void
 ;
 entry:
@@ -371,19 +371,17 @@ attributes #5 = { convergent }
 ; CHECK: attributes #[[ATTR1]] = { convergent noinline nounwind "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="sm_53" "target-features"="+ptx32,+sm_53" }
 ; CHECK: attributes #[[ATTR2]] = { nounwind }
 ; CHECK: attributes #[[ATTR3:[0-9]+]] = { alwaysinline }
-; CHECK: attributes #[[ATTR4]] = { convergent noinline nounwind writeonly "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="sm_53" "target-features"="+ptx32,+sm_53" }
+; CHECK: attributes #[[ATTR4]] = { convergent noinline nounwind memory(write) "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="sm_53" "target-features"="+ptx32,+sm_53" }
 ; CHECK: attributes #[[ATTR5]] = { convergent nounwind }
-; CHECK: attributes #[[ATTR6]] = { convergent nounwind writeonly }
-; CHECK: attributes #[[ATTR7]] = { convergent }
+; CHECK: attributes #[[ATTR6]] = { convergent }
 ;.
 ; CHECK-DISABLE-SPMDIZATION: attributes #[[ATTR0]] = { convergent noinline norecurse nounwind "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="sm_53" "target-features"="+ptx32,+sm_53" }
 ; CHECK-DISABLE-SPMDIZATION: attributes #[[ATTR1]] = { convergent noinline nounwind "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="sm_53" "target-features"="+ptx32,+sm_53" }
 ; CHECK-DISABLE-SPMDIZATION: attributes #[[ATTR2]] = { nounwind }
 ; CHECK-DISABLE-SPMDIZATION: attributes #[[ATTR3:[0-9]+]] = { alwaysinline }
-; CHECK-DISABLE-SPMDIZATION: attributes #[[ATTR4]] = { convergent noinline nounwind writeonly "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="sm_53" "target-features"="+ptx32,+sm_53" }
+; CHECK-DISABLE-SPMDIZATION: attributes #[[ATTR4]] = { convergent noinline nounwind memory(write) "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="sm_53" "target-features"="+ptx32,+sm_53" }
 ; CHECK-DISABLE-SPMDIZATION: attributes #[[ATTR5]] = { convergent nounwind }
-; CHECK-DISABLE-SPMDIZATION: attributes #[[ATTR6]] = { convergent nounwind writeonly }
-; CHECK-DISABLE-SPMDIZATION: attributes #[[ATTR7]] = { convergent }
+; CHECK-DISABLE-SPMDIZATION: attributes #[[ATTR6]] = { convergent }
 ;.
 ; CHECK: [[META0:![0-9]+]] = !{i32 0, i32 43, i32 17011637, !"spmd", i32 12, i32 0}
 ; CHECK: [[META1:![0-9]+]] = !{i32 0, i32 43, i32 17011637, !"generic", i32 20, i32 1}

diff  --git a/llvm/test/Transforms/RewriteStatepointsForGC/X86/intrinsic-attributes.ll b/llvm/test/Transforms/RewriteStatepointsForGC/X86/intrinsic-attributes.ll
index b0d6531f05342..ce8d977b8d4a5 100644
--- a/llvm/test/Transforms/RewriteStatepointsForGC/X86/intrinsic-attributes.ll
+++ b/llvm/test/Transforms/RewriteStatepointsForGC/X86/intrinsic-attributes.ll
@@ -1,6 +1,6 @@
 ; RUN: opt < %s -S -rewrite-statepoints-for-gc | FileCheck %s
 
-; CHECK: Function Attrs: nocallback nofree nosync nounwind readnone willreturn
+; CHECK: Function Attrs: nocallback nofree nosync nounwind willreturn memory(none)
 ; CHECK: declare i64 @llvm.x86.sse2.cvttsd2si64(<2 x double>)
 declare i64 @llvm.x86.sse2.cvttsd2si64(<2 x double>)
 

diff  --git a/llvm/test/Transforms/RewriteStatepointsForGC/statepoint-attrs.ll b/llvm/test/Transforms/RewriteStatepointsForGC/statepoint-attrs.ll
index 1580b09f25882..1eb6cefc4dcd8 100644
--- a/llvm/test/Transforms/RewriteStatepointsForGC/statepoint-attrs.ll
+++ b/llvm/test/Transforms/RewriteStatepointsForGC/statepoint-attrs.ll
@@ -20,6 +20,6 @@ define void @test1(i8 addrspace(1)* %arg) gc "statepoint-example" {
 
 attributes #1 = { norecurse noimplicitfloat }
 ;.
-; CHECK: attributes #[[ATTR0:[0-9]+]] = { nounwind readnone }
+; CHECK: attributes #[[ATTR0:[0-9]+]] = { nounwind memory(none) }
 ; CHECK: attributes #[[ATTR1]] = { noimplicitfloat norecurse }
 ;.

diff  --git a/llvm/test/Transforms/SCCP/ipscp-drop-argmemonly.ll b/llvm/test/Transforms/SCCP/ipscp-drop-argmemonly.ll
index 015c9afb3720e..22726e0cac1f1 100644
--- a/llvm/test/Transforms/SCCP/ipscp-drop-argmemonly.ll
+++ b/llvm/test/Transforms/SCCP/ipscp-drop-argmemonly.ll
@@ -1,4 +1,4 @@
-; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-attributes
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-attributes --check-globals
 ; RUN: opt -passes=ipsccp -S %s | FileCheck %s
 
 ; Test cases to ensure argmemonly/inaccessiblemem_or_argmemonly attributes are
@@ -10,8 +10,11 @@
 
 ; Here the pointer argument %arg will be replaced by a constant. We need to
 ; drop argmemonly.
+;.
+; CHECK: @[[G:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 0
+;.
 define internal void @ptrarg.1(ptr %arg, i32 %val) argmemonly nounwind {
-; CHECK: Function Attrs: nounwind
+; CHECK: Function Attrs: nounwind memory(readwrite, inaccessiblemem: none)
 ; CHECK-LABEL: @ptrarg.1(
 ; CHECK-NEXT:    store i32 10, ptr @g, align 4
 ; CHECK-NEXT:    ret void
@@ -37,7 +40,7 @@ define i32 @caller.1(i32 %n) {
 ; Here only the non-pointer argument %val is replaced, no need
 ; to drop the argmemonly attribute.
 define internal void @ptrarg.2(ptr %arg, i32 %val) argmemonly nounwind {
-; CHECK: Function Attrs: argmemonly nounwind
+; CHECK: Function Attrs: nounwind memory(argmem: readwrite)
 ; CHECK-LABEL: @ptrarg.2(
 ; CHECK-NEXT:    store i32 10, ptr [[ARG:%.*]], align 4
 ; CHECK-NEXT:    ret void
@@ -59,7 +62,7 @@ define void @caller.2(ptr %ptr) {
 ; Here the pointer argument %arg will be replaced by a constant. We need to
 ; drop inaccessiblemem_or_argmemonly.
 define internal void @ptrarg.3(ptr %arg, i32 %val) inaccessiblemem_or_argmemonly nounwind {
-; CHECK: Function Attrs: nounwind
+; CHECK: Function Attrs: nounwind memory(readwrite)
 ; CHECK-LABEL: @ptrarg.3(
 ; CHECK-NEXT:    store i32 10, ptr @g, align 4
 ; CHECK-NEXT:    ret void
@@ -85,7 +88,7 @@ define i32 @caller.3(i32 %n) {
 ; Here only the non-pointer argument %val is replaced, no need
 ; to drop the inaccessiblemem_or_argmemonly attribute.
 define internal void @ptrarg.4(ptr %arg, i32 %val) inaccessiblemem_or_argmemonly nounwind {
-; CHECK: Function Attrs: inaccessiblemem_or_argmemonly nounwind
+; CHECK: Function Attrs: nounwind memory(argmem: readwrite, inaccessiblemem: readwrite)
 ; CHECK-LABEL: @ptrarg.4(
 ; CHECK-NEXT:    store i32 10, ptr [[ARG:%.*]], align 4
 ; CHECK-NEXT:    ret void
@@ -107,7 +110,7 @@ define void @caller.4(ptr %ptr) {
 ; Here the pointer argument %arg will be replaced by a constant. We need to
 ; drop inaccessiblemem_or_argmemonly.
 define internal void @ptrarg.5(ptr %arg, i32 %val) argmemonly inaccessiblemem_or_argmemonly nounwind {
-; CHECK: Function Attrs: nounwind
+; CHECK: Function Attrs: nounwind memory(readwrite, inaccessiblemem: none)
 ; CHECK-LABEL: @ptrarg.5(
 ; CHECK-NEXT:    store i32 10, ptr @g, align 4
 ; CHECK-NEXT:    ret void
@@ -143,10 +146,10 @@ define internal void @ptrarg.6.cs.attributes(ptr %arg, i32 %val) {
 define i32 @caller.6.cs.attributes(i32 %n) {
 ; CHECK-LABEL: @caller.6.cs.attributes(
 ; CHECK-NEXT:    store i32 1, ptr @g, align 4
-; CHECK-NEXT:    tail call void @ptrarg.5(ptr @g, i32 10) [[NOUNWIND:#[0-9]+]]
-; CHECK-NEXT:    tail call void @ptrarg.5(ptr @g, i32 10) [[NOUNWIND:#[0-9]+]]
-; CHECK-NEXT:    tail call void @ptrarg.5(ptr @g, i32 10) [[NOUNWIND:#[0-9]+]]
-; CHECK-NEXT:    tail call void @ptrarg.5(ptr @g, i32 10) [[NOUNWIND:#[0-9]+]]
+; CHECK-NEXT:    tail call void @ptrarg.5(ptr @g, i32 10) #[[ATTR0:[0-9]+]]
+; CHECK-NEXT:    tail call void @ptrarg.5(ptr @g, i32 10) #[[ATTR2:[0-9]+]]
+; CHECK-NEXT:    tail call void @ptrarg.5(ptr @g, i32 10) #[[ATTR0]]
+; CHECK-NEXT:    tail call void @ptrarg.5(ptr @g, i32 10) #[[ATTR4:[0-9]+]]
 ; CHECK-NEXT:    [[G_VAL:%.*]] = load i32, ptr @g, align 4
 ; CHECK-NEXT:    ret i32 [[G_VAL]]
 ;
@@ -159,4 +162,10 @@ define i32 @caller.6.cs.attributes(i32 %n) {
   ret i32 %g.val
 }
 
-; CHECK: [[NOUNWIND]] = { nounwind }
+;.
+; CHECK: attributes #[[ATTR0]] = { nounwind memory(readwrite, inaccessiblemem: none) }
+; CHECK: attributes #[[ATTR1:[0-9]+]] = { nounwind memory(argmem: readwrite) }
+; CHECK: attributes #[[ATTR2]] = { nounwind memory(readwrite) }
+; CHECK: attributes #[[ATTR3:[0-9]+]] = { nounwind memory(argmem: readwrite, inaccessiblemem: readwrite) }
+; CHECK: attributes #[[ATTR4]] = { nounwind }
+;.

diff  --git a/llvm/test/Transforms/SCCP/remove-call-inst.ll b/llvm/test/Transforms/SCCP/remove-call-inst.ll
index b4ab128bffa28..6881b82a938fb 100644
--- a/llvm/test/Transforms/SCCP/remove-call-inst.ll
+++ b/llvm/test/Transforms/SCCP/remove-call-inst.ll
@@ -36,4 +36,4 @@ return:
 }
 
 ; CHECK: attributes #0 = { noreturn nounwind }
-; CHECK: attributes #1 = { nounwind readnone willreturn }
+; CHECK: attributes #1 = { nounwind willreturn memory(none) }

diff  --git a/llvm/test/Transforms/SampleProfile/pseudo-probe-emit.ll b/llvm/test/Transforms/SampleProfile/pseudo-probe-emit.ll
index f39b03c01dc6a..cb868d440b69d 100644
--- a/llvm/test/Transforms/SampleProfile/pseudo-probe-emit.ll
+++ b/llvm/test/Transforms/SampleProfile/pseudo-probe-emit.ll
@@ -64,7 +64,7 @@ entry:
   ret void
 }
 
-; CHECK-IL: Function Attrs: inaccessiblememonly nocallback nofree nosync nounwind willreturn
+; CHECK-IL: Function Attrs: nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite)
 ; CHECK-IL-NEXT: declare void @llvm.pseudoprobe(i64, i64, i32, i64)
 
 ; CHECK-IL: ![[#FOO:]] = distinct !DISubprogram(name: "foo"

diff  --git a/llvm/test/Transforms/SimplifyCFG/X86/merge-compatible-invokes-of-landingpad-debuginfo.ll b/llvm/test/Transforms/SimplifyCFG/X86/merge-compatible-invokes-of-landingpad-debuginfo.ll
index b1802ba8022ba..bfbba255f3c6f 100644
--- a/llvm/test/Transforms/SimplifyCFG/X86/merge-compatible-invokes-of-landingpad-debuginfo.ll
+++ b/llvm/test/Transforms/SimplifyCFG/X86/merge-compatible-invokes-of-landingpad-debuginfo.ll
@@ -68,7 +68,7 @@ declare void @destructor()
 declare dso_local i32 @__gxx_personality_v0(...)
 ;.
 ; CHECK: attributes #[[ATTR0:[0-9]+]] = { noreturn }
-; CHECK: attributes #[[ATTR1:[0-9]+]] = { nocallback nofree nosync nounwind readnone speculatable willreturn }
+; CHECK: attributes #[[ATTR1:[0-9]+]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
 ;.
 ; CHECK: [[META0:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug)
 ; CHECK: [[META1:![0-9]+]] = !DIFile(filename: "<stdin>", directory: "/")

diff  --git a/llvm/test/Transforms/SimplifyCFG/X86/merge-compatible-invokes-of-landingpad.ll b/llvm/test/Transforms/SimplifyCFG/X86/merge-compatible-invokes-of-landingpad.ll
index 20ecd03476c63..7b0359aa1d71a 100644
--- a/llvm/test/Transforms/SimplifyCFG/X86/merge-compatible-invokes-of-landingpad.ll
+++ b/llvm/test/Transforms/SimplifyCFG/X86/merge-compatible-invokes-of-landingpad.ll
@@ -2475,5 +2475,5 @@ declare dso_local i32 @__gxx_personality_v0(...)
 ;.
 ; CHECK: attributes #[[ATTR0:[0-9]+]] = { noreturn }
 ; CHECK: attributes #[[ATTR1]] = { nomerge }
-; CHECK: attributes #[[ATTR2]] = { readnone }
+; CHECK: attributes #[[ATTR2]] = { memory(none) }
 ;.

diff  --git a/llvm/test/Transforms/SimplifyCFG/preserve-branchweights.ll b/llvm/test/Transforms/SimplifyCFG/preserve-branchweights.ll
index fc200e041125e..7965c8d23cd00 100644
--- a/llvm/test/Transforms/SimplifyCFG/preserve-branchweights.ll
+++ b/llvm/test/Transforms/SimplifyCFG/preserve-branchweights.ll
@@ -1133,7 +1133,7 @@ exit:
 ;.
 ; CHECK: attributes #[[ATTR0:[0-9]+]] = { nounwind uwtable }
 ; CHECK: attributes #[[ATTR1]] = { nounwind }
-; CHECK: attributes #[[ATTR2:[0-9]+]] = { noredzone nounwind readnone ssp }
+; CHECK: attributes #[[ATTR2:[0-9]+]] = { noredzone nounwind ssp memory(none) }
 ;.
 ; CHECK: [[PROF0]] = !{!"branch_weights", i32 5, i32 11}
 ; CHECK: [[PROF1]] = !{!"branch_weights", i32 1, i32 3}

diff  --git a/llvm/test/Verifier/fp-intrinsics.ll b/llvm/test/Verifier/fp-intrinsics.ll
index 744c215ce23e1..670acc58550e8 100644
--- a/llvm/test/Verifier/fp-intrinsics.ll
+++ b/llvm/test/Verifier/fp-intrinsics.ll
@@ -12,7 +12,7 @@ declare double @llvm.experimental.constrained.sqrt.f64(double, metadata, metadat
 ; attached to the FP intrinsic.
 ; CHECK1: declare double @llvm.experimental.constrained.fadd.f64(double, double, metadata, metadata) #[[ATTR:[0-9]+]]
 ; CHECK1: declare double @llvm.experimental.constrained.sqrt.f64(double, metadata, metadata) #[[ATTR]]
-; CHECK1: attributes #[[ATTR]] = { inaccessiblememonly nocallback nofree nosync nounwind willreturn }
+; CHECK1: attributes #[[ATTR]] = { nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite) }
 ; Note: FP exceptions aren't usually caught through normal unwind mechanisms,
 ;       but we may want to revisit this for asynchronous exception handling.
 define double @f1(double %a, double %b) #0 {

diff  --git a/llvm/test/Verifier/writeonly.ll b/llvm/test/Verifier/writeonly.ll
deleted file mode 100644
index 0eeaebbc3a889..0000000000000
--- a/llvm/test/Verifier/writeonly.ll
+++ /dev/null
@@ -1,13 +0,0 @@
-; RUN: not llvm-as %s -o /dev/null 2>&1 | FileCheck %s
-
-declare void @a() readnone writeonly
-; CHECK: Attributes {{.*}} are incompatible
-
-declare void @b() readonly writeonly
-; CHECK: Attributes {{.*}} are incompatible
-
-declare void @c(i32* readnone writeonly %p)
-; CHECK: Attributes {{.*}} are incompatible
-
-declare void @d(i32* readonly writeonly %p)
-; CHECK: Attributes {{.*}} are incompatible

diff  --git a/llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/check_attrs.ll.funcattrs.expected b/llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/check_attrs.ll.funcattrs.expected
index 4fff2d2836f15..0177b6f0306ff 100644
--- a/llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/check_attrs.ll.funcattrs.expected
+++ b/llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/check_attrs.ll.funcattrs.expected
@@ -6,7 +6,7 @@
 %struct.ST = type { i32, double, %struct.RT }
 
 define i32* @foo(%struct.ST* %s) nounwind uwtable readnone optsize ssp {
-; CHECK: Function Attrs: nofree norecurse nosync nounwind optsize readnone ssp willreturn uwtable
+; CHECK: Function Attrs: nofree norecurse nosync nounwind optsize ssp willreturn memory(none) uwtable
 ; CHECK-LABEL: define {{[^@]+}}@foo
 ; CHECK-SAME: (%struct.ST* nofree readnone [[S:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:

diff  --git a/llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/various_ir_values.ll.funcsig.globals.expected b/llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/various_ir_values.ll.funcsig.globals.expected
index 3f56cfed2b925..345a5223fedb4 100644
--- a/llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/various_ir_values.ll.funcsig.globals.expected
+++ b/llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/various_ir_values.ll.funcsig.globals.expected
@@ -249,8 +249,8 @@ attributes #3 = { nounwind }
 !61 = !{!"branch_weights", i32 1, i32 1048575}
 ;.
 ; CHECK: attributes #[[ATTR0]] = { nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "denormal-fp-math"="ieee,ieee" "denormal-fp-math-f32"="ieee,ieee" "disable-tail-calls"="false" "frame-pointer"="none" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
-; CHECK: attributes #[[ATTR1:[0-9]+]] = { nocallback nofree nosync nounwind readnone speculatable willreturn }
-; CHECK: attributes #[[ATTR2:[0-9]+]] = { argmemonly nocallback nofree nosync nounwind willreturn }
+; CHECK: attributes #[[ATTR1:[0-9]+]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
+; CHECK: attributes #[[ATTR2:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
 ; CHECK: attributes #[[ATTR3]] = { nounwind }
 ;.
 ; CHECK: [[META0:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 11.0.0 (git at github.com:llvm/llvm-project.git 1d5da8cd30fce1c0a2c2fa6ba656dbfaa36192c8)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)

diff  --git a/llvm/test/tools/llvm-reduce/remove-attributes-from-intrinsics.ll b/llvm/test/tools/llvm-reduce/remove-attributes-from-intrinsics.ll
index 3eb43c344ea8e..2aec90b086f7f 100644
--- a/llvm/test/tools/llvm-reduce/remove-attributes-from-intrinsics.ll
+++ b/llvm/test/tools/llvm-reduce/remove-attributes-from-intrinsics.ll
@@ -26,7 +26,7 @@ define i32 @t(i32 %a) {
 ; CHECK-ALL: declare i32 @llvm.uadd.sat.i32(i32, i32) #0
 declare i32 @llvm.uadd.sat.i32(i32, i32) #0
 
-; CHECK-ALL: attributes #0 = { nocallback nofree nosync nounwind readnone speculatable willreturn }
+; CHECK-ALL: attributes #0 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
 
 ; CHECK-INTERESTINGNESS: attributes #1 = {
 ; CHECK-INTERESTINGNESS-SAME: "arg4"

diff  --git a/llvm/unittests/IR/InstructionsTest.cpp b/llvm/unittests/IR/InstructionsTest.cpp
index c80bfa9762663..65cb48a7ab038 100644
--- a/llvm/unittests/IR/InstructionsTest.cpp
+++ b/llvm/unittests/IR/InstructionsTest.cpp
@@ -731,11 +731,11 @@ TEST(InstructionsTest, CloneCall) {
   // Test cloning an attribute.
   {
     AttrBuilder AB(C);
-    AB.addAttribute(Attribute::ReadOnly);
+    AB.addAttribute(Attribute::NoUnwind);
     Call->setAttributes(
         AttributeList::get(C, AttributeList::FunctionIndex, AB));
     std::unique_ptr<CallInst> Clone(cast<CallInst>(Call->clone()));
-    EXPECT_TRUE(Clone->onlyReadsMemory());
+    EXPECT_TRUE(Clone->doesNotThrow());
   }
 }
 

diff  --git a/llvm/utils/TableGen/IntrinsicEmitter.cpp b/llvm/utils/TableGen/IntrinsicEmitter.cpp
index ec3023f843db4..a6d7e2ce949bf 100644
--- a/llvm/utils/TableGen/IntrinsicEmitter.cpp
+++ b/llvm/utils/TableGen/IntrinsicEmitter.cpp
@@ -776,49 +776,53 @@ void IntrinsicEmitter::EmitAttributes(const CodeGenIntrinsicTable &Ints,
     case CodeGenIntrinsic::NoMem:
       if (Intrinsic.hasSideEffects)
         break;
-      OS << "      Attribute::get(C, Attribute::ReadNone),\n";
+      OS << "      Attribute::getWithMemoryEffects(C, "
+         << "MemoryEffects::none()),\n";
       break;
     case CodeGenIntrinsic::ReadArgMem:
-      OS << "      Attribute::get(C, Attribute::ReadOnly),\n";
-      OS << "      Attribute::get(C, Attribute::ArgMemOnly),\n";
+      OS << "      Attribute::getWithMemoryEffects(C, "
+         << "MemoryEffects::argMemOnly(ModRefInfo::Ref)),\n";
       break;
     case CodeGenIntrinsic::ReadMem:
-      OS << "      Attribute::get(C, Attribute::ReadOnly),\n";
+      OS << "      Attribute::getWithMemoryEffects(C, "
+         << "MemoryEffects::readOnly()),\n";
       break;
     case CodeGenIntrinsic::ReadInaccessibleMem:
-      OS << "      Attribute::get(C, Attribute::ReadOnly),\n";
-      OS << "      Attribute::get(C, Attribute::InaccessibleMemOnly),\n";
+      OS << "      Attribute::getWithMemoryEffects(C, "
+         << "MemoryEffects::inaccessibleMemOnly(ModRefInfo::Ref)),\n";
       break;
     case CodeGenIntrinsic::ReadInaccessibleMemOrArgMem:
-      OS << "      Attribute::get(C, Attribute::ReadOnly),\n";
-      OS << "      Attribute::get(C, "
-         << "Attribute::InaccessibleMemOrArgMemOnly),\n";
+      OS << "      Attribute::getWithMemoryEffects(C, "
+         << "MemoryEffects::inaccessibleOrArgMemOnly(ModRefInfo::Ref)),\n";
+      break;
       break;
     case CodeGenIntrinsic::WriteArgMem:
-      OS << "      Attribute::get(C, Attribute::WriteOnly),\n";
-      OS << "      Attribute::get(C, Attribute::ArgMemOnly),\n";
+      OS << "      Attribute::getWithMemoryEffects(C, "
+         << "MemoryEffects::argMemOnly(ModRefInfo::Mod)),\n";
       break;
     case CodeGenIntrinsic::WriteMem:
-      OS << "      Attribute::get(C, Attribute::WriteOnly),\n";
+      OS << "      Attribute::getWithMemoryEffects(C, "
+         << "MemoryEffects::writeOnly()),\n";
       break;
     case CodeGenIntrinsic::WriteInaccessibleMem:
-      OS << "      Attribute::get(C, Attribute::WriteOnly),\n";
-      OS << "      Attribute::get(C, Attribute::InaccessibleMemOnly),\n";
+      OS << "      Attribute::getWithMemoryEffects(C, "
+         << "MemoryEffects::inaccessibleMemOnly(ModRefInfo::Mod)),\n";
       break;
     case CodeGenIntrinsic::WriteInaccessibleMemOrArgMem:
-      OS << "      Attribute::get(C, Attribute::WriteOnly),\n";
-      OS << "      Attribute::get(C, "
-         << "Attribute::InaccessibleMemOrArgMemOnly),\n";
+      OS << "      Attribute::getWithMemoryEffects(C, "
+         << "MemoryEffects::inaccessibleOrArgMemOnly(ModRefInfo::Mod)),\n";
       break;
     case CodeGenIntrinsic::ReadWriteArgMem:
-      OS << "      Attribute::get(C, Attribute::ArgMemOnly),\n";
+      OS << "      Attribute::getWithMemoryEffects(C, "
+         << "MemoryEffects::argMemOnly(ModRefInfo::ModRef)),\n";
       break;
     case CodeGenIntrinsic::ReadWriteInaccessibleMem:
-      OS << "      Attribute::get(C, Attribute::InaccessibleMemOnly),\n";
+      OS << "      Attribute::getWithMemoryEffects(C, "
+         << "MemoryEffects::inaccessibleMemOnly(ModRefInfo::ModRef)),\n";
       break;
     case CodeGenIntrinsic::ReadWriteInaccessibleMemOrArgMem:
-      OS << "      Attribute::get(C, "
-         << "Attribute::InaccessibleMemOrArgMemOnly),\n";
+      OS << "      Attribute::getWithMemoryEffects(C, "
+         << "MemoryEffects::inaccessibleOrArgMemOnly(ModRefInfo::ModRef)),\n";
       break;
     case CodeGenIntrinsic::ReadWriteMem:
       break;

diff  --git a/llvm/utils/UpdateTestChecks/common.py b/llvm/utils/UpdateTestChecks/common.py
index 127a7404431ed..6ed9d4aac4b76 100644
--- a/llvm/utils/UpdateTestChecks/common.py
+++ b/llvm/utils/UpdateTestChecks/common.py
@@ -327,7 +327,7 @@ def invoke_tool(exe, cmd_args, ir, preprocess_cmd=None, verbose=False):
 UNUSED_NOTE = 'NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:'
 
 OPT_FUNCTION_RE = re.compile(
-    r'^(\s*;\s*Function\sAttrs:\s(?P<attrs>[\w\s]+?))?\s*define\s+(?:internal\s+)?[^@]*@(?P<func>[\w.$-]+?)\s*'
+    r'^(\s*;\s*Function\sAttrs:\s(?P<attrs>[\w\s():,]+?))?\s*define\s+(?:internal\s+)?[^@]*@(?P<func>[\w.$-]+?)\s*'
     r'(?P<args_and_sig>\((\)|(.*?[\w.-]+?)\))[^{]*\{)\n(?P<body>.*?)^\}$',
     flags=(re.M | re.S))
 

diff  --git a/mlir/test/Target/LLVMIR/llvmir.mlir b/mlir/test/Target/LLVMIR/llvmir.mlir
index 2c4f54c765352..0ca8bb02c2bb1 100644
--- a/mlir/test/Target/LLVMIR/llvmir.mlir
+++ b/mlir/test/Target/LLVMIR/llvmir.mlir
@@ -2009,5 +2009,5 @@ llvm.func @vararg_function(%arg0: i32, ...) {
 // Function attributes: readnone
 
 // CHECK: declare void @readnone_function() #[[ATTR:[0-9]+]]
-// CHECK: attributes #[[ATTR]] = { readnone }
+// CHECK: attributes #[[ATTR]] = { memory(none) }
 llvm.func @readnone_function() attributes {llvm.readnone}


        


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