[clang] 564d85e - The maximal representable alignment in LLVM IR is 1GiB, not 512MiB

Roman Lebedev via cfe-commits cfe-commits at lists.llvm.org
Thu Aug 26 02:54:12 PDT 2021


Author: Roman Lebedev
Date: 2021-08-26T12:53:39+03:00
New Revision: 564d85e090afdaac6475d43708d77a7fa0cf5301

URL: https://github.com/llvm/llvm-project/commit/564d85e090afdaac6475d43708d77a7fa0cf5301
DIFF: https://github.com/llvm/llvm-project/commit/564d85e090afdaac6475d43708d77a7fa0cf5301.diff

LOG: The maximal representable alignment in LLVM IR is 1GiB, not 512MiB

In LLVM IR, `AlignmentBitfieldElementT` is 5-bit wide
But that means that the maximal alignment exponent is `(1<<5)-2`,
which is `30`, not `29`. And indeed, alignment of `1073741824`
roundtrips IR serialization-deserialization.

While this doesn't seem all that important, this doubles
the maximal supported alignment from 512MiB to 1GiB,
and there's actually one noticeable use-case for that;
On X86, the huge pages can have sizes of 2MiB and 1GiB (!).

So while this doesn't add support for truly huge alignments,
which i think we can easily-ish do if wanted, i think this adds
zero-cost support for a not-trivially-dismissable case.

I don't believe we need any upgrade infrastructure,
and since we don't explicitly record the IR version,
we don't need to bump one either.

As @craig.topper speculates in D108661#2963519,
this might be an artificial limit imposed by the original implementation
of the `getAlignment()` functions.

Differential Revision: https://reviews.llvm.org/D108661

Added: 
    llvm/test/CodeGen/MIR/X86/load-with-1gb-alignment.mir

Modified: 
    clang/include/clang/Sema/Sema.h
    clang/test/CXX/drs/dr6xx.cpp
    clang/test/CodeGen/builtin-assume-aligned.c
    clang/test/CodeGen/catch-alignment-assumption-attribute-align_value-on-paramvar.cpp
    clang/test/CodeGen/catch-alignment-assumption-builtin_assume_aligned-three-params-variable.cpp
    clang/test/CodeGen/catch-alignment-assumption-builtin_assume_aligned-three-params.cpp
    clang/test/CodeGen/catch-alignment-assumption-builtin_assume_aligned-two-params.cpp
    clang/test/CodeGen/catch-alignment-assumption-openmp.cpp
    clang/test/Sema/alloc-align-attr.c
    clang/test/Sema/attr-aligned.c
    clang/test/Sema/builtin-assume-aligned.c
    clang/test/SemaCXX/alloc-align-attr.cpp
    llvm/include/llvm/IR/Instruction.h
    llvm/include/llvm/IR/Value.h
    llvm/test/Assembler/align-inst-alloca.ll
    llvm/test/Assembler/align-inst-load.ll
    llvm/test/Assembler/align-inst-store.ll
    llvm/test/Assembler/align-inst.ll
    llvm/test/Bitcode/inalloca.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/IPConstantProp/PR26044.ll
    llvm/test/Transforms/Attributor/IPConstantProp/pthreads.ll
    llvm/test/Transforms/Attributor/callbacks.ll
    llvm/test/Transforms/Attributor/liveness.ll
    llvm/test/Transforms/Attributor/memory_locations.ll
    llvm/test/Transforms/Attributor/noalias.ll
    llvm/test/Transforms/Attributor/nocapture-1.ll
    llvm/test/Transforms/Attributor/noundef.ll
    llvm/test/Transforms/Attributor/undefined_behavior.ll
    llvm/test/Transforms/Attributor/value-simplify.ll
    llvm/test/Transforms/GVN/PRE/2017-06-28-pre-load-dbgloc.ll
    llvm/test/Transforms/InstCombine/atomic.ll
    llvm/test/Transforms/InstCombine/getelementptr.ll
    llvm/test/Transforms/InstCombine/load.ll
    llvm/test/Transforms/InstCombine/mempcpy.ll
    llvm/test/Transforms/InstCombine/pr44245.ll
    llvm/test/Transforms/InstCombine/store.ll
    llvm/test/Transforms/OpenMP/parallel_level_fold.ll
    llvm/test/Verifier/align-md.ll
    llvm/unittests/IR/ValueTest.cpp

Removed: 
    


################################################################################
diff  --git a/clang/include/clang/Sema/Sema.h b/clang/include/clang/Sema/Sema.h
index 188e94a9645be..d5c685ee9791f 100644
--- a/clang/include/clang/Sema/Sema.h
+++ b/clang/include/clang/Sema/Sema.h
@@ -396,7 +396,7 @@ class Sema final {
   ///
   /// This is the greatest alignment value supported by load, store, and alloca
   /// instructions, and global values.
-  static const unsigned MaxAlignmentExponent = 29;
+  static const unsigned MaxAlignmentExponent = 30;
   static const unsigned MaximumAlignment = 1u << MaxAlignmentExponent;
 
   typedef OpaquePtr<DeclGroupRef> DeclGroupPtrTy;

diff  --git a/clang/test/CXX/drs/dr6xx.cpp b/clang/test/CXX/drs/dr6xx.cpp
index e9e08fd2e2c00..efca2b4292748 100644
--- a/clang/test/CXX/drs/dr6xx.cpp
+++ b/clang/test/CXX/drs/dr6xx.cpp
@@ -551,9 +551,11 @@ namespace dr648 { // dr648: yes
 
 #if __cplusplus >= 201103L
 namespace dr649 { // dr649: yes
-  alignas(0x40000000) int n; // expected-error {{requested alignment}}1
-  struct alignas(0x40000000) X {}; // expected-error {{requested alignment}}
-  struct Y { int n alignas(0x40000000); }; // expected-error {{requested alignment}}
+alignas(0x80000000) int n;       // expected-error {{requested alignment}}1
+struct alignas(0x80000000) X {}; // expected-error {{requested alignment}}
+struct Y {
+  int n alignas(0x80000000); // expected-error {{requested alignment}}
+};
   struct alignas(256) Z {};
   // This part is superseded by dr2130 and eventually by aligned allocation support.
   auto *p = new Z;

diff  --git a/clang/test/CodeGen/builtin-assume-aligned.c b/clang/test/CodeGen/builtin-assume-aligned.c
index b9f1ebfbdcf58..9d48e20bb381a 100644
--- a/clang/test/CodeGen/builtin-assume-aligned.c
+++ b/clang/test/CodeGen/builtin-assume-aligned.c
@@ -117,7 +117,7 @@ int test6() {
 // CHECK-NEXT:    store i32* [[A]], i32** [[A_ADDR]], align 8
 // CHECK-NEXT:    [[TMP0:%.*]] = load i32*, i32** [[A_ADDR]], align 8
 // CHECK-NEXT:    [[TMP1:%.*]] = bitcast i32* [[TMP0]] to i8*
-// CHECK-NEXT:    call void @llvm.assume(i1 true) [ "align"(i8* [[TMP1]], i64 536870912) ]
+// CHECK-NEXT:    call void @llvm.assume(i1 true) [ "align"(i8* [[TMP1]], i64 1073741824) ]
 // CHECK-NEXT:    [[TMP2:%.*]] = bitcast i8* [[TMP1]] to i32*
 // CHECK-NEXT:    store i32* [[TMP2]], i32** [[A_ADDR]], align 8
 // CHECK-NEXT:    [[TMP3:%.*]] = load i32*, i32** [[A_ADDR]], align 8

diff  --git a/clang/test/CodeGen/catch-alignment-assumption-attribute-align_value-on-paramvar.cpp b/clang/test/CodeGen/catch-alignment-assumption-attribute-align_value-on-paramvar.cpp
index 472c4da116828..0c2d9a0124e5f 100644
--- a/clang/test/CodeGen/catch-alignment-assumption-attribute-align_value-on-paramvar.cpp
+++ b/clang/test/CodeGen/catch-alignment-assumption-attribute-align_value-on-paramvar.cpp
@@ -7,7 +7,7 @@
 // CHECK-SANITIZE-ANYRECOVER: @[[LINE_100_ALIGNMENT_ASSUMPTION:.*]] = {{.*}}, i32 100, i32 10 }, {{.*}}* @[[CHAR]] }
 
 char **passthrough(__attribute__((align_value(0x80000000))) char **x) {
-  // CHECK-NOSANITIZE:                define{{.*}} i8** @{{.*}}(i8** align 536870912 %[[X:.*]])
+  // CHECK-NOSANITIZE:                define{{.*}} i8** @{{.*}}(i8** align 1073741824 %[[X:.*]])
   // CHECK-SANITIZE:                  define{{.*}} i8** @{{.*}}(i8** %[[X:.*]])
   // CHECK-NEXT:                      [[entry:.*]]:
   // CHECK-NEXT:                        %[[X_ADDR:.*]] = alloca i8**, align 8

diff  --git a/clang/test/CodeGen/catch-alignment-assumption-builtin_assume_aligned-three-params-variable.cpp b/clang/test/CodeGen/catch-alignment-assumption-builtin_assume_aligned-three-params-variable.cpp
index 88097b88937e8..5215746807d73 100644
--- a/clang/test/CodeGen/catch-alignment-assumption-builtin_assume_aligned-three-params-variable.cpp
+++ b/clang/test/CodeGen/catch-alignment-assumption-builtin_assume_aligned-three-params-variable.cpp
@@ -18,17 +18,17 @@ void *caller(char **x, unsigned long offset) {
   // CHECK-NEXT:                        %[[OFFSET_RELOADED:.*]] = load i64, i64* %[[OFFSET_ADDR]], align 8
   // CHECK-SANITIZE-NEXT:               %[[PTRINT:.*]] = ptrtoint i8* %[[BITCAST]] to i64
   // CHECK-SANITIZE-NEXT:               %[[OFFSETPTR:.*]] = sub i64 %[[PTRINT]], %[[OFFSET_RELOADED]]
-  // CHECK-SANITIZE-NEXT:               %[[MASKEDPTR:.*]] = and i64 %[[OFFSETPTR]], 536870911
+  // CHECK-SANITIZE-NEXT:               %[[MASKEDPTR:.*]] = and i64 %[[OFFSETPTR]], 1073741823
   // CHECK-SANITIZE-NEXT:               %[[MASKCOND:.*]] = icmp eq i64 %[[MASKEDPTR]], 0
   // CHECK-SANITIZE-NEXT:               %[[PTRINT_DUP:.*]] = ptrtoint i8* %[[BITCAST]] to i64, !nosanitize
   // CHECK-SANITIZE-NEXT:               br i1 %[[MASKCOND]], label %[[CONT:.*]], label %[[HANDLER_ALIGNMENT_ASSUMPTION:[^,]+]],{{.*}} !nosanitize
   // CHECK-SANITIZE:                  [[HANDLER_ALIGNMENT_ASSUMPTION]]:
-  // CHECK-SANITIZE-NORECOVER-NEXT:     call void @__ubsan_handle_alignment_assumption_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}, {{{.*}}}* }* @[[LINE_100_ALIGNMENT_ASSUMPTION]] to i8*), i64 %[[PTRINT_DUP]], i64 536870912, i64 %[[OFFSET_RELOADED]]){{.*}}, !nosanitize
-  // CHECK-SANITIZE-RECOVER-NEXT:       call void @__ubsan_handle_alignment_assumption(i8* bitcast ({ {{{.*}}}, {{{.*}}}, {{{.*}}}* }* @[[LINE_100_ALIGNMENT_ASSUMPTION]] to i8*), i64 %[[PTRINT_DUP]], i64 536870912, i64 %[[OFFSET_RELOADED]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT:     call void @__ubsan_handle_alignment_assumption_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}, {{{.*}}}* }* @[[LINE_100_ALIGNMENT_ASSUMPTION]] to i8*), i64 %[[PTRINT_DUP]], i64 1073741824, i64 %[[OFFSET_RELOADED]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT:       call void @__ubsan_handle_alignment_assumption(i8* bitcast ({ {{{.*}}}, {{{.*}}}, {{{.*}}}* }* @[[LINE_100_ALIGNMENT_ASSUMPTION]] to i8*), i64 %[[PTRINT_DUP]], i64 1073741824, i64 %[[OFFSET_RELOADED]]){{.*}}, !nosanitize
   // CHECK-SANITIZE-TRAP-NEXT:          call void @llvm.ubsantrap(i8 23){{.*}}, !nosanitize
   // CHECK-SANITIZE-UNREACHABLE-NEXT:   unreachable, !nosanitize
   // CHECK-SANITIZE:                  [[CONT]]:
-  // CHECK-NEXT:                        call void @llvm.assume(i1 true) [ "align"(i8* %[[BITCAST]], i64 536870912, i64 %[[OFFSET_RELOADED]]) ]
+  // CHECK-NEXT:                        call void @llvm.assume(i1 true) [ "align"(i8* %[[BITCAST]], i64 1073741824, i64 %[[OFFSET_RELOADED]]) ]
   // CHECK-NEXT:                        ret i8* %[[BITCAST]]
   // CHECK-NEXT:                      }
 #line 100

diff  --git a/clang/test/CodeGen/catch-alignment-assumption-builtin_assume_aligned-three-params.cpp b/clang/test/CodeGen/catch-alignment-assumption-builtin_assume_aligned-three-params.cpp
index ec2666bd9d9e2..20bdebdac0884 100644
--- a/clang/test/CodeGen/catch-alignment-assumption-builtin_assume_aligned-three-params.cpp
+++ b/clang/test/CodeGen/catch-alignment-assumption-builtin_assume_aligned-three-params.cpp
@@ -15,17 +15,17 @@ void *caller(char **x) {
   // CHECK-NEXT:                        %[[BITCAST:.*]] = bitcast i8** %[[X_RELOADED]] to i8*
   // CHECK-SANITIZE-NEXT:               %[[PTRINT:.*]] = ptrtoint i8* %[[BITCAST]] to i64
   // CHECK-SANITIZE-NEXT:               %[[OFFSETPTR:.*]] = sub i64 %[[PTRINT]], 42
-  // CHECK-SANITIZE-NEXT:               %[[MASKEDPTR:.*]] = and i64 %[[OFFSETPTR]], 536870911
+  // CHECK-SANITIZE-NEXT:               %[[MASKEDPTR:.*]] = and i64 %[[OFFSETPTR]], 1073741823
   // CHECK-SANITIZE-NEXT:               %[[MASKCOND:.*]] = icmp eq i64 %[[MASKEDPTR]], 0
   // CHECK-SANITIZE-NEXT:               %[[PTRINT_DUP:.*]] = ptrtoint i8* %[[BITCAST]] to i64, !nosanitize
   // CHECK-SANITIZE-NEXT:               br i1 %[[MASKCOND]], label %[[CONT:.*]], label %[[HANDLER_ALIGNMENT_ASSUMPTION:[^,]+]],{{.*}} !nosanitize
   // CHECK-SANITIZE:                  [[HANDLER_ALIGNMENT_ASSUMPTION]]:
-  // CHECK-SANITIZE-NORECOVER-NEXT:     call void @__ubsan_handle_alignment_assumption_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}, {{{.*}}}* }* @[[LINE_100_ALIGNMENT_ASSUMPTION]] to i8*), i64 %[[PTRINT_DUP]], i64 536870912, i64 42){{.*}}, !nosanitize
-  // CHECK-SANITIZE-RECOVER-NEXT:       call void @__ubsan_handle_alignment_assumption(i8* bitcast ({ {{{.*}}}, {{{.*}}}, {{{.*}}}* }* @[[LINE_100_ALIGNMENT_ASSUMPTION]] to i8*), i64 %[[PTRINT_DUP]], i64 536870912, i64 42){{.*}}, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT:     call void @__ubsan_handle_alignment_assumption_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}, {{{.*}}}* }* @[[LINE_100_ALIGNMENT_ASSUMPTION]] to i8*), i64 %[[PTRINT_DUP]], i64 1073741824, i64 42){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT:       call void @__ubsan_handle_alignment_assumption(i8* bitcast ({ {{{.*}}}, {{{.*}}}, {{{.*}}}* }* @[[LINE_100_ALIGNMENT_ASSUMPTION]] to i8*), i64 %[[PTRINT_DUP]], i64 1073741824, i64 42){{.*}}, !nosanitize
   // CHECK-SANITIZE-TRAP-NEXT:          call void @llvm.ubsantrap(i8 23){{.*}}, !nosanitize
   // CHECK-SANITIZE-UNREACHABLE-NEXT:   unreachable, !nosanitize
   // CHECK-SANITIZE:                  [[CONT]]:
-  // CHECK-NEXT:                        call void @llvm.assume(i1 true) [ "align"(i8* %[[BITCAST]], i64 536870912, i64 42) ]
+  // CHECK-NEXT:                        call void @llvm.assume(i1 true) [ "align"(i8* %[[BITCAST]], i64 1073741824, i64 42) ]
   // CHECK-NEXT:                        ret i8* %[[BITCAST]]
   // CHECK-NEXT:                      }
 #line 100

diff  --git a/clang/test/CodeGen/catch-alignment-assumption-builtin_assume_aligned-two-params.cpp b/clang/test/CodeGen/catch-alignment-assumption-builtin_assume_aligned-two-params.cpp
index 53982ff7a3d71..6d21460532416 100644
--- a/clang/test/CodeGen/catch-alignment-assumption-builtin_assume_aligned-two-params.cpp
+++ b/clang/test/CodeGen/catch-alignment-assumption-builtin_assume_aligned-two-params.cpp
@@ -14,17 +14,17 @@ void *caller(char **x) {
   // CHECK-NEXT:                        %[[X_RELOADED:.*]] = load i8**, i8*** %[[X_ADDR]], align 8
   // CHECK-NEXT:                        %[[BITCAST:.*]] = bitcast i8** %[[X_RELOADED]] to i8*
   // CHECK-SANITIZE-NEXT:               %[[PTRINT:.*]] = ptrtoint i8* %[[BITCAST]] to i64
-  // CHECK-SANITIZE-NEXT:               %[[MASKEDPTR:.*]] = and i64 %[[PTRINT]], 536870911
+  // CHECK-SANITIZE-NEXT:               %[[MASKEDPTR:.*]] = and i64 %[[PTRINT]], 1073741823
   // CHECK-SANITIZE-NEXT:               %[[MASKCOND:.*]] = icmp eq i64 %[[MASKEDPTR]], 0
   // CHECK-SANITIZE-NEXT:               %[[PTRINT_DUP:.*]] = ptrtoint i8* %[[BITCAST]] to i64, !nosanitize
   // CHECK-SANITIZE-NEXT:               br i1 %[[MASKCOND]], label %[[CONT:.*]], label %[[HANDLER_ALIGNMENT_ASSUMPTION:[^,]+]],{{.*}} !nosanitize
   // CHECK-SANITIZE:                  [[HANDLER_ALIGNMENT_ASSUMPTION]]:
-  // CHECK-SANITIZE-NORECOVER-NEXT:     call void @__ubsan_handle_alignment_assumption_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}, {{{.*}}}* }* @[[LINE_100_ALIGNMENT_ASSUMPTION]] to i8*), i64 %[[PTRINT_DUP]], i64 536870912, i64 0){{.*}}, !nosanitize
-  // CHECK-SANITIZE-RECOVER-NEXT:       call void @__ubsan_handle_alignment_assumption(i8* bitcast ({ {{{.*}}}, {{{.*}}}, {{{.*}}}* }* @[[LINE_100_ALIGNMENT_ASSUMPTION]] to i8*), i64 %[[PTRINT_DUP]], i64 536870912, i64 0){{.*}}, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT:     call void @__ubsan_handle_alignment_assumption_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}, {{{.*}}}* }* @[[LINE_100_ALIGNMENT_ASSUMPTION]] to i8*), i64 %[[PTRINT_DUP]], i64 1073741824, i64 0){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT:       call void @__ubsan_handle_alignment_assumption(i8* bitcast ({ {{{.*}}}, {{{.*}}}, {{{.*}}}* }* @[[LINE_100_ALIGNMENT_ASSUMPTION]] to i8*), i64 %[[PTRINT_DUP]], i64 1073741824, i64 0){{.*}}, !nosanitize
   // CHECK-SANITIZE-TRAP-NEXT:          call void @llvm.ubsantrap(i8 23){{.*}}, !nosanitize
   // CHECK-SANITIZE-UNREACHABLE-NEXT:   unreachable, !nosanitize
   // CHECK-SANITIZE:                  [[CONT]]:
-  // CHECK-NEXT:                        call void @llvm.assume(i1 true) [ "align"(i8* %[[BITCAST]], i64 536870912) ]
+  // CHECK-NEXT:                        call void @llvm.assume(i1 true) [ "align"(i8* %[[BITCAST]], i64 1073741824) ]
   // CHECK-NEXT:                        ret i8* %[[BITCAST]]
   // CHECK-NEXT:                      }
 #line 100

diff  --git a/clang/test/CodeGen/catch-alignment-assumption-openmp.cpp b/clang/test/CodeGen/catch-alignment-assumption-openmp.cpp
index 2ed558111fabf..5092dc2ce975a 100644
--- a/clang/test/CodeGen/catch-alignment-assumption-openmp.cpp
+++ b/clang/test/CodeGen/catch-alignment-assumption-openmp.cpp
@@ -13,20 +13,20 @@ void func(char *data) {
   // CHECK:   store i8* %[[DATA]], i8** %[[DATA_ADDR]], align 8
   // CHECK:   %[[DATA_RELOADED:.*]] = load i8*, i8** %[[DATA_ADDR]], align 8
   // CHECK-SANITIZE-NEXT:   %[[PTRINT:.*]] = ptrtoint i8* %[[DATA_RELOADED]] to i64
-  // CHECK-SANITIZE-NEXT:   %[[MASKEDPTR:.*]] = and i64 %[[PTRINT]], 1073741823
+  // CHECK-SANITIZE-NEXT:   %[[MASKEDPTR:.*]] = and i64 %[[PTRINT]], 2147483647
   // CHECK-SANITIZE-NEXT:   %[[MASKCOND:.*]] = icmp eq i64 %[[MASKEDPTR]], 0
   // CHECK-SANITIZE-NEXT:               %[[PTRINT_DUP:.*]] = ptrtoint i8* %[[DATA_RELOADED]] to i64, !nosanitize
   // CHECK-SANITIZE-NEXT:               br i1 %[[MASKCOND]], label %[[CONT:.*]], label %[[HANDLER_ALIGNMENT_ASSUMPTION:[^,]+]],{{.*}} !nosanitize
   // CHECK-SANITIZE:                  [[HANDLER_ALIGNMENT_ASSUMPTION]]:
-  // CHECK-SANITIZE-NORECOVER-NEXT:     call void @__ubsan_handle_alignment_assumption_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}, {{{.*}}}* }* @[[LINE_100_ALIGNMENT_ASSUMPTION]] to i8*), i64 %[[PTRINT_DUP]], i64 1073741824, i64 0){{.*}}, !nosanitize
-  // CHECK-SANITIZE-RECOVER-NEXT:       call void @__ubsan_handle_alignment_assumption(i8* bitcast ({ {{{.*}}}, {{{.*}}}, {{{.*}}}* }* @[[LINE_100_ALIGNMENT_ASSUMPTION]] to i8*), i64 %[[PTRINT_DUP]], i64 1073741824, i64 0){{.*}}, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT:     call void @__ubsan_handle_alignment_assumption_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}, {{{.*}}}* }* @[[LINE_100_ALIGNMENT_ASSUMPTION]] to i8*), i64 %[[PTRINT_DUP]], i64 2147483648, i64 0){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT:       call void @__ubsan_handle_alignment_assumption(i8* bitcast ({ {{{.*}}}, {{{.*}}}, {{{.*}}}* }* @[[LINE_100_ALIGNMENT_ASSUMPTION]] to i8*), i64 %[[PTRINT_DUP]], i64 2147483648, i64 0){{.*}}, !nosanitize
   // CHECK-SANITIZE-TRAP-NEXT:          call void @llvm.ubsantrap(i8 23){{.*}}, !nosanitize
   // CHECK-SANITIZE-UNREACHABLE-NEXT:   unreachable, !nosanitize
   // CHECK-SANITIZE:                  [[CONT]]:
-  // CHECK-NEXT:                        call void @llvm.assume(i1 true) [ "align"(i8* %[[DATA_RELOADED]], i64 1073741824) ]
+  // CHECK-NEXT:                        call void @llvm.assume(i1 true) [ "align"(i8* %[[DATA_RELOADED]], i64 2147483648) ]
 
 #line 100
-#pragma omp for simd aligned(data : 0x40000000)
+#pragma omp for simd aligned(data : 0x80000000)
   for (int x = 0; x < 1; x++)
     data[x] = data[x];
 }

diff  --git a/clang/test/Sema/alloc-align-attr.c b/clang/test/Sema/alloc-align-attr.c
index 942ec117ee202..5d4896a2b29dd 100644
--- a/clang/test/Sema/alloc-align-attr.c
+++ b/clang/test/Sema/alloc-align-attr.c
@@ -2,7 +2,7 @@
 
 // return values
 void test_void_alloc_align(void) __attribute__((alloc_align(1))); // expected-warning {{'alloc_align' attribute only applies to return values that are pointers}}
-void *test_ptr_alloc_align(int a) __attribute__((alloc_align(1))); // no-warning
+void *test_ptr_alloc_align(unsigned int a) __attribute__((alloc_align(1))); // no-warning
 
 int j __attribute__((alloc_align(1))); // expected-warning {{'alloc_align' attribute only applies to non-K&R-style functions}}
 void *test_no_params_zero(void) __attribute__((alloc_align(0))); // expected-error {{'alloc_align' attribute parameter 1 is out of bounds}}
@@ -26,6 +26,6 @@ void *align16() {
 void *align15() {
   return test_ptr_alloc_align(15); // expected-warning {{requested alignment is not a power of 2}}
 }
-void *align536870912() {
-  return test_ptr_alloc_align(1073741824); // expected-warning {{requested alignment must be 536870912 bytes or smaller; maximum alignment assumed}}
+void *align1073741824() {
+  return test_ptr_alloc_align(2147483648); // expected-warning {{requested alignment must be 1073741824 bytes or smaller; maximum alignment assumed}}
 }

diff  --git a/clang/test/Sema/attr-aligned.c b/clang/test/Sema/attr-aligned.c
index 1d65ef41b810e..fa10867cc46fc 100644
--- a/clang/test/Sema/attr-aligned.c
+++ b/clang/test/Sema/attr-aligned.c
@@ -1,7 +1,7 @@
 // RUN: %clang_cc1 -triple i386-apple-darwin9 -fsyntax-only -verify %s
 
 int x __attribute__((aligned(3))); // expected-error {{requested alignment is not a power of 2}}
-int y __attribute__((aligned(1 << 30))); // expected-error {{requested alignment must be 536870912 bytes or smaller}}
+int y __attribute__((aligned(1 << 31))); // expected-error {{requested alignment must be 1073741824 bytes or smaller}}
 
 // PR26444
 int y __attribute__((aligned(1 << 29)));

diff  --git a/clang/test/Sema/builtin-assume-aligned.c b/clang/test/Sema/builtin-assume-aligned.c
index b862f865c2ca5..6d04dd47b38d7 100644
--- a/clang/test/Sema/builtin-assume-aligned.c
+++ b/clang/test/Sema/builtin-assume-aligned.c
@@ -46,7 +46,7 @@ int test8(int *a, int j) {
 void test_void_assume_aligned(void) __attribute__((assume_aligned(32))); // expected-warning {{'assume_aligned' attribute only applies to return values that are pointers}}
 int test_int_assume_aligned(void) __attribute__((assume_aligned(16))); // expected-warning {{'assume_aligned' attribute only applies to return values that are pointers}}
 void *test_ptr_assume_aligned(void) __attribute__((assume_aligned(64))); // no-warning
-void *test_ptr_assume_aligned(void) __attribute__((assume_aligned(1073741824))); // expected-warning {{requested alignment must be 536870912 bytes or smaller; maximum alignment assumed}}
+void *test_ptr_assume_aligned(void) __attribute__((assume_aligned(2147483648))); // expected-warning {{requested alignment must be 1073741824 bytes or smaller; maximum alignment assumed}}
 
 int j __attribute__((assume_aligned(8))); // expected-warning {{'assume_aligned' attribute only applies to Objective-C methods and functions}}
 void *test_no_fn_proto() __attribute__((assume_aligned(32))); // no-warning
@@ -60,6 +60,6 @@ void *test_no_fn_proto() __attribute__((assume_aligned())); // expected-error {{
 void *test_no_fn_proto() __attribute__((assume_aligned(32, 45, 37))); // expected-error {{'assume_aligned' attribute takes no more than 2 arguments}}
 
 int pr43638(int *a) {
-  a = __builtin_assume_aligned(a, 1073741824); // expected-warning {{requested alignment must be 536870912 bytes or smaller; maximum alignment assumed}}
-return a[0];
+  a = __builtin_assume_aligned(a, 2147483648); // expected-warning {{requested alignment must be 1073741824 bytes or smaller; maximum alignment assumed}}
+  return a[0];
 }

diff  --git a/clang/test/SemaCXX/alloc-align-attr.cpp b/clang/test/SemaCXX/alloc-align-attr.cpp
index bb59ab332dee9..7c80e1f89c58d 100644
--- a/clang/test/SemaCXX/alloc-align-attr.cpp
+++ b/clang/test/SemaCXX/alloc-align-attr.cpp
@@ -7,8 +7,8 @@ struct param_num {
 
 template <typename T>
 struct dependent_ret {
-  T* Foo(int a) __attribute__((alloc_align(2)));// no-warning, ends up being int**.
-  T Foo2(int a) __attribute__((alloc_align(2)));// expected-warning {{'alloc_align' attribute only applies to return values that are pointers or references}}
+  T *Foo(unsigned a) __attribute__((alloc_align(2))); // no-warning, ends up being int**.
+  T Foo2(unsigned a) __attribute__((alloc_align(2))); // expected-warning {{'alloc_align' attribute only applies to return values that are pointers or references}}
 };
 
 // Following 2 errors associated only with the 'float' versions below.
@@ -32,8 +32,8 @@ void dependent_impl(int align) {
   b.Foo2(1);
   b.Foo(3);           // expected-warning {{requested alignment is not a power of 2}}
   b.Foo2(3);          // expected-warning {{requested alignment is not a power of 2}}
-  b.Foo(1073741824);  // expected-warning {{requested alignment must be 536870912 bytes or smaller; maximum alignment assumed}}
-  b.Foo2(1073741824); // expected-warning {{requested alignment must be 536870912 bytes or smaller; maximum alignment assumed}}
+  b.Foo(2147483648);  // expected-warning {{requested alignment must be 1073741824 bytes or smaller; maximum alignment assumed}}
+  b.Foo2(2147483648); // expected-warning {{requested alignment must be 1073741824 bytes or smaller; maximum alignment assumed}}
   b.Foo(align);
   b.Foo2(align);
 

diff  --git a/llvm/include/llvm/IR/Instruction.h b/llvm/include/llvm/IR/Instruction.h
index deb85cf277fe0..57c34f37db6aa 100644
--- a/llvm/include/llvm/IR/Instruction.h
+++ b/llvm/include/llvm/IR/Instruction.h
@@ -59,7 +59,7 @@ class Instruction : public User,
   // Template alias so that all Instruction storing alignment use the same
   // definiton.
   // Valid alignments are powers of two from 2^0 to 2^MaxAlignmentExponent =
-  // 2^29. We store them as Log2(Alignment), so we need 5 bits to encode the 30
+  // 2^30. We store them as Log2(Alignment), so we need 5 bits to encode the 31
   // possible values.
   template <unsigned Offset>
   using AlignmentBitfieldElementT =

diff  --git a/llvm/include/llvm/IR/Value.h b/llvm/include/llvm/IR/Value.h
index 7527684d8d25a..a81b745b36e29 100644
--- a/llvm/include/llvm/IR/Value.h
+++ b/llvm/include/llvm/IR/Value.h
@@ -781,7 +781,7 @@ class Value {
   ///
   /// This is the greatest alignment value supported by load, store, and alloca
   /// instructions, and global values.
-  static constexpr unsigned MaxAlignmentExponent = 29;
+  static constexpr unsigned MaxAlignmentExponent = 30;
   static constexpr unsigned MaximumAlignment = 1u << MaxAlignmentExponent;
 
   /// Mutate the type of this Value to be of the specified type.

diff  --git a/llvm/test/Assembler/align-inst-alloca.ll b/llvm/test/Assembler/align-inst-alloca.ll
index 0343bebf18764..f27e0dc9a145a 100644
--- a/llvm/test/Assembler/align-inst-alloca.ll
+++ b/llvm/test/Assembler/align-inst-alloca.ll
@@ -1,6 +1,6 @@
 ; RUN: not llvm-as %s -o /dev/null 2>/dev/null
 
 define void @foo() {
-  %p = alloca i1, align 1073741824
+  %p = alloca i1, align 2147483648
   ret void
 }

diff  --git a/llvm/test/Assembler/align-inst-load.ll b/llvm/test/Assembler/align-inst-load.ll
index 75fcd3e5a0281..e8d52f141a4eb 100644
--- a/llvm/test/Assembler/align-inst-load.ll
+++ b/llvm/test/Assembler/align-inst-load.ll
@@ -1,6 +1,6 @@
 ; RUN: not llvm-as %s -o /dev/null 2>/dev/null
 
-define void @foo() {
-  load i1, i1* %p, align 1073741824
+define void @foo(i1* %p) {
+  load i1, i1* %p, align 2147483648
   ret void
 }

diff  --git a/llvm/test/Assembler/align-inst-store.ll b/llvm/test/Assembler/align-inst-store.ll
index 8c3b7124b4376..5d29911140a22 100644
--- a/llvm/test/Assembler/align-inst-store.ll
+++ b/llvm/test/Assembler/align-inst-store.ll
@@ -1,6 +1,6 @@
 ; RUN: not llvm-as %s -o /dev/null 2>/dev/null
 
-define void @foo() {
-  store i1 false, i1* %p, align 1073741824
+define void @foo(i1* %p) {
+  store i1 false, i1* %p, align 2147483648
   ret void
 }

diff  --git a/llvm/test/Assembler/align-inst.ll b/llvm/test/Assembler/align-inst.ll
index 028da396d2fee..6471d76c9fa8c 100644
--- a/llvm/test/Assembler/align-inst.ll
+++ b/llvm/test/Assembler/align-inst.ll
@@ -1,11 +1,11 @@
 ; RUN: llvm-as %s -o /dev/null
 ; RUN: verify-uselistorder %s
 
- at A = global i1 0, align 536870912
+ at A = global i1 0, align 1073741824
 
 define void @foo() {
-  %p = alloca i1, align 536870912
-  load i1, i1* %p, align 536870912
-  store i1 false, i1* %p, align 536870912
+  %p = alloca i1, align 1073741824
+  load i1, i1* %p, align 1073741824
+  store i1 false, i1* %p, align 1073741824
   ret void
 }

diff  --git a/llvm/test/Bitcode/inalloca.ll b/llvm/test/Bitcode/inalloca.ll
index 3b56f571b15b2..351add158041e 100644
--- a/llvm/test/Bitcode/inalloca.ll
+++ b/llvm/test/Bitcode/inalloca.ll
@@ -10,10 +10,10 @@ define void @foo(i32* inalloca(i32) %args) {
 
 define void @bar() {
   ; Use the maximum alignment, since we stuff our bit with alignment.
-  %args = alloca inalloca i32, align 536870912
+  %args = alloca inalloca i32, align 1073741824
   call void @foo(i32* inalloca(i32) %args)
   ret void
 }
 ; CHECK-LABEL: define void @bar() {
-; CHECK: %args = alloca inalloca i32, align 536870912
+; CHECK: %args = alloca inalloca i32, align 1073741824
 ; CHECK: call void @foo(i32* inalloca(i32) %args)

diff  --git a/llvm/test/CodeGen/MIR/X86/load-with-1gb-alignment.mir b/llvm/test/CodeGen/MIR/X86/load-with-1gb-alignment.mir
new file mode 100644
index 0000000000000..f5490e4da69ad
--- /dev/null
+++ b/llvm/test/CodeGen/MIR/X86/load-with-1gb-alignment.mir
@@ -0,0 +1,44 @@
+# RUN: llc -march=x86-64 -run-pass=none -o - %s | FileCheck %s
+
+# CHECK: name:            truly_aligned_load
+# CHECK: MOV32rm {{.*}} :: (load (s32), align 1073741824)
+
+# CHECK: name:            basealigned_load
+# CHECK: MOV32rm {{.*}} :: (load (s32) from unknown-address + 4, basealign 1073741824)
+
+---
+name:            truly_aligned_load
+alignment:       16
+tracksRegLiveness: true
+liveins:
+  - { reg: '$rdi' }
+frameInfo:
+  maxAlignment:    1
+  maxCallFrameSize: 0
+machineFunctionInfo: {}
+body:             |
+  bb.0:
+    liveins: $rdi
+
+    renamable $eax = MOV32rm killed renamable $rdi, 1, $noreg, 0, $noreg :: (load (s32) from unknown-address, align 1073741824)
+    RETQ $eax
+
+...
+---
+name:            basealigned_load
+alignment:       16
+tracksRegLiveness: true
+liveins:
+  - { reg: '$rdi' }
+frameInfo:
+  maxAlignment:    1
+  maxCallFrameSize: 0
+machineFunctionInfo: {}
+body:             |
+  bb.0:
+    liveins: $rdi
+
+    renamable $eax = MOV32rm killed renamable $rdi, 1, $noreg, 0, $noreg :: (load (s32) from unknown-address + 4, basealign 1073741824)
+    RETQ $eax
+
+...

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 6a80253d3e0b7..28342a655719b 100644
--- a/llvm/test/Transforms/Attributor/ArgumentPromotion/live_called_from_dead.ll
+++ b/llvm/test/Transforms/Attributor/ArgumentPromotion/live_called_from_dead.ll
@@ -7,7 +7,7 @@
 
 define internal void @dead() {
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@dead() {
-; IS__CGSCC____-NEXT:    [[TMP1:%.*]] = call i32 @test(i32* noalias noundef align 536870912 null)
+; IS__CGSCC____-NEXT:    [[TMP1:%.*]] = call i32 @test(i32* noalias noundef align 1073741824 null)
 ; IS__CGSCC____-NEXT:    ret void
 ;
   call i32 @test(i32* null, i32* null)

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 662950c19b24d..795a065c77859 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
@@ -7,7 +7,7 @@
 
 define internal void @dead() {
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@dead() {
-; IS__CGSCC____-NEXT:    [[TMP1:%.*]] = call i32 @test(i32* noalias noundef align 536870912 null)
+; IS__CGSCC____-NEXT:    [[TMP1:%.*]] = call i32 @test(i32* noalias noundef align 1073741824 null)
 ; IS__CGSCC____-NEXT:    ret void
 ;
   call i32 @test(i32* null, i32* null)

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/PR26044.ll b/llvm/test/Transforms/Attributor/IPConstantProp/PR26044.ll
index 09c9ef67e6bb2..5dba5d25df554 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/PR26044.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/PR26044.ll
@@ -153,7 +153,7 @@ define void @fn_no_null_opt(i32* %P, i1 %C) null_pointer_is_valid {
 ; IS__CGSCC_OPM-NEXT:    br i1 [[C]], label [[IF_END]], label [[EXIT:%.*]]
 ; IS__CGSCC_OPM:       if.end:
 ; IS__CGSCC_OPM-NEXT:    [[E_2:%.*]] = phi i32* [ undef, [[ENTRY:%.*]] ], [ null, [[FOR_COND1:%.*]] ]
-; IS__CGSCC_OPM-NEXT:    [[TMP0:%.*]] = load i32, i32* null, align 536870912
+; IS__CGSCC_OPM-NEXT:    [[TMP0:%.*]] = load i32, i32* null, align 1073741824
 ; IS__CGSCC_OPM-NEXT:    [[CALL:%.*]] = call i32 @fn0(i32 [[TMP0]])
 ; IS__CGSCC_OPM-NEXT:    store i32 [[CALL]], i32* [[P]], align 4
 ; IS__CGSCC_OPM-NEXT:    br label [[FOR_COND1]]
@@ -169,7 +169,7 @@ define void @fn_no_null_opt(i32* %P, i1 %C) null_pointer_is_valid {
 ; IS__CGSCC_NPM-NEXT:    br i1 [[C]], label [[IF_END]], label [[EXIT:%.*]]
 ; IS__CGSCC_NPM:       if.end:
 ; IS__CGSCC_NPM-NEXT:    [[E_2:%.*]] = phi i32* [ undef, [[ENTRY:%.*]] ], [ null, [[FOR_COND1:%.*]] ]
-; IS__CGSCC_NPM-NEXT:    [[TMP0:%.*]] = load i32, i32* null, align 536870912
+; IS__CGSCC_NPM-NEXT:    [[TMP0:%.*]] = load i32, i32* null, align 1073741824
 ; IS__CGSCC_NPM-NEXT:    store i32 [[TMP0]], i32* [[P]], align 4
 ; IS__CGSCC_NPM-NEXT:    br label [[FOR_COND1]]
 ; IS__CGSCC_NPM:       exit:

diff  --git a/llvm/test/Transforms/Attributor/IPConstantProp/pthreads.ll b/llvm/test/Transforms/Attributor/IPConstantProp/pthreads.ll
index a8a866f684007..6dfb5c769dabc 100644
--- a/llvm/test/Transforms/Attributor/IPConstantProp/pthreads.ll
+++ b/llvm/test/Transforms/Attributor/IPConstantProp/pthreads.ll
@@ -39,10 +39,10 @@ define dso_local i32 @main() {
 ; IS__TUNIT____-NEXT:    [[ALLOC1:%.*]] = alloca i8, align 8
 ; IS__TUNIT____-NEXT:    [[ALLOC2:%.*]] = alloca i8, align 8
 ; IS__TUNIT____-NEXT:    [[THREAD:%.*]] = alloca i64, align 8
-; IS__TUNIT____-NEXT:    [[CALL:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @foo, i8* noalias nocapture nofree readnone align 536870912 undef)
-; IS__TUNIT____-NEXT:    [[CALL1:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @bar, i8* noalias nocapture nofree nonnull readnone align 8 dereferenceable(8) undef)
-; IS__TUNIT____-NEXT:    [[CALL2:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @baz, i8* noalias nocapture nofree noundef nonnull readnone align 8 dereferenceable(1) [[ALLOC1]])
-; IS__TUNIT____-NEXT:    [[CALL3:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @buz, i8* noalias nofree noundef nonnull readnone align 8 dereferenceable(1) "no-capture-maybe-returned" [[ALLOC2]])
+; IS__TUNIT____-NEXT:    [[CALL:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 1073741824 null, i8* (i8*)* noundef nonnull @foo, i8* noalias nocapture nofree readnone align 1073741824 undef)
+; IS__TUNIT____-NEXT:    [[CALL1:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 1073741824 null, i8* (i8*)* noundef nonnull @bar, i8* noalias nocapture nofree nonnull readnone align 8 dereferenceable(8) undef)
+; IS__TUNIT____-NEXT:    [[CALL2:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 1073741824 null, i8* (i8*)* noundef nonnull @baz, i8* noalias nocapture nofree noundef nonnull readnone align 8 dereferenceable(1) [[ALLOC1]])
+; IS__TUNIT____-NEXT:    [[CALL3:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 1073741824 null, i8* (i8*)* noundef nonnull @buz, i8* noalias nofree noundef nonnull readnone align 8 dereferenceable(1) "no-capture-maybe-returned" [[ALLOC2]])
 ; IS__TUNIT____-NEXT:    ret i32 0
 ;
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@main() {
@@ -50,10 +50,10 @@ define dso_local i32 @main() {
 ; IS__CGSCC____-NEXT:    [[ALLOC1:%.*]] = alloca i8, align 8
 ; IS__CGSCC____-NEXT:    [[ALLOC2:%.*]] = alloca i8, align 8
 ; IS__CGSCC____-NEXT:    [[THREAD:%.*]] = alloca i64, align 8
-; IS__CGSCC____-NEXT:    [[CALL:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @foo, i8* noalias nocapture nofree noundef readnone align 536870912 null)
-; IS__CGSCC____-NEXT:    [[CALL1:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @bar, i8* noalias nocapture nofree noundef nonnull readnone align 8 dereferenceable(8) bitcast (i8** @GlobalVPtr to i8*))
-; IS__CGSCC____-NEXT:    [[CALL2:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @baz, i8* noalias nocapture nofree noundef nonnull readnone align 8 dereferenceable(1) [[ALLOC1]])
-; IS__CGSCC____-NEXT:    [[CALL3:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @buz, i8* noalias nofree noundef nonnull readnone align 8 dereferenceable(1) "no-capture-maybe-returned" [[ALLOC2]])
+; IS__CGSCC____-NEXT:    [[CALL:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 1073741824 null, i8* (i8*)* noundef nonnull @foo, i8* noalias nocapture nofree noundef readnone align 1073741824 null)
+; IS__CGSCC____-NEXT:    [[CALL1:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 1073741824 null, i8* (i8*)* noundef nonnull @bar, i8* noalias nocapture nofree noundef nonnull readnone align 8 dereferenceable(8) bitcast (i8** @GlobalVPtr to i8*))
+; IS__CGSCC____-NEXT:    [[CALL2:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 1073741824 null, i8* (i8*)* noundef nonnull @baz, i8* noalias nocapture nofree noundef nonnull readnone align 8 dereferenceable(1) [[ALLOC1]])
+; IS__CGSCC____-NEXT:    [[CALL3:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 1073741824 null, i8* (i8*)* noundef nonnull @buz, i8* noalias nofree noundef nonnull readnone align 8 dereferenceable(1) "no-capture-maybe-returned" [[ALLOC2]])
 ; IS__CGSCC____-NEXT:    ret i32 0
 ;
 entry:
@@ -72,13 +72,13 @@ declare !callback !0 dso_local i32 @pthread_create(i64*, %union.pthread_attr_t*,
 define internal i8* @foo(i8* %arg) {
 ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@foo
-; IS__TUNIT____-SAME: (i8* noalias nocapture nofree readnone align 536870912 [[ARG:%.*]]) #[[ATTR0:[0-9]+]] {
+; IS__TUNIT____-SAME: (i8* noalias nocapture nofree readnone align 1073741824 [[ARG:%.*]]) #[[ATTR0:[0-9]+]] {
 ; IS__TUNIT____-NEXT:  entry:
 ; IS__TUNIT____-NEXT:    ret i8* null
 ;
 ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@foo
-; IS__CGSCC____-SAME: (i8* noalias nocapture nofree readnone align 536870912 [[ARG:%.*]]) #[[ATTR0:[0-9]+]] {
+; IS__CGSCC____-SAME: (i8* noalias nocapture nofree readnone align 1073741824 [[ARG:%.*]]) #[[ATTR0:[0-9]+]] {
 ; IS__CGSCC____-NEXT:  entry:
 ; IS__CGSCC____-NEXT:    ret i8* null
 ;

diff  --git a/llvm/test/Transforms/Attributor/callbacks.ll b/llvm/test/Transforms/Attributor/callbacks.ll
index d698f6f6ab1de..7c1fe687a930b 100644
--- a/llvm/test/Transforms/Attributor/callbacks.ll
+++ b/llvm/test/Transforms/Attributor/callbacks.ll
@@ -25,7 +25,7 @@ define void @t0_caller(i32* %a) {
 ; IS__TUNIT_OPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__TUNIT_OPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__TUNIT_OPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__TUNIT_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t0_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t0_callback_callee to void (i32*, i32*, ...)*), i32* align 256 [[A]], i64 undef, i32** nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__TUNIT_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t0_callback_broker(i32* noalias nocapture noundef align 1073741824 null, i32* noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t0_callback_callee to void (i32*, i32*, ...)*), i32* align 256 [[A]], i64 undef, i32** nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@t0_caller
@@ -37,7 +37,7 @@ define void @t0_caller(i32* %a) {
 ; IS__TUNIT_NPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__TUNIT_NPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__TUNIT_NPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__TUNIT_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t0_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t0_callback_callee to void (i32*, i32*, ...)*), i32* align 256 [[A]], i64 undef, i32** noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__TUNIT_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t0_callback_broker(i32* noalias nocapture noundef align 1073741824 null, i32* noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t0_callback_callee to void (i32*, i32*, ...)*), i32* align 256 [[A]], i64 undef, i32** noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@t0_caller
@@ -49,7 +49,7 @@ define void @t0_caller(i32* %a) {
 ; IS__CGSCC_OPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__CGSCC_OPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__CGSCC_OPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__CGSCC_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t0_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t0_callback_callee to void (i32*, i32*, ...)*), i32* align 256 [[A]], i64 noundef 99, i32** nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__CGSCC_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t0_callback_broker(i32* noalias nocapture noundef align 1073741824 null, i32* noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t0_callback_callee to void (i32*, i32*, ...)*), i32* align 256 [[A]], i64 noundef 99, i32** nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@t0_caller
@@ -61,7 +61,7 @@ define void @t0_caller(i32* %a) {
 ; IS__CGSCC_NPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__CGSCC_NPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__CGSCC_NPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__CGSCC_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t0_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t0_callback_callee to void (i32*, i32*, ...)*), i32* align 256 [[A]], i64 noundef 99, i32** noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__CGSCC_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t0_callback_broker(i32* noalias nocapture noundef align 1073741824 null, i32* noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t0_callback_callee to void (i32*, i32*, ...)*), i32* align 256 [[A]], i64 noundef 99, i32** noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
 entry:
@@ -125,7 +125,7 @@ define void @t1_caller(i32* noalias %a) {
 ; IS__TUNIT_OPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__TUNIT_OPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__TUNIT_OPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__TUNIT_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__TUNIT_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture noundef align 1073741824 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@t1_caller
@@ -137,7 +137,7 @@ define void @t1_caller(i32* noalias %a) {
 ; IS__TUNIT_NPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__TUNIT_NPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__TUNIT_NPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__TUNIT_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__TUNIT_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture noundef align 1073741824 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@t1_caller
@@ -149,7 +149,7 @@ define void @t1_caller(i32* noalias %a) {
 ; IS__CGSCC_OPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__CGSCC_OPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__CGSCC_OPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__CGSCC_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__CGSCC_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture noundef align 1073741824 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@t1_caller
@@ -161,7 +161,7 @@ define void @t1_caller(i32* noalias %a) {
 ; IS__CGSCC_NPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__CGSCC_NPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__CGSCC_NPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__CGSCC_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__CGSCC_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture noundef align 1073741824 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
 entry:
@@ -225,7 +225,7 @@ define void @t2_caller(i32* noalias %a) {
 ; IS__TUNIT_OPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__TUNIT_OPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__TUNIT_OPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__TUNIT_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__TUNIT_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture noundef align 1073741824 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@t2_caller
@@ -237,7 +237,7 @@ define void @t2_caller(i32* noalias %a) {
 ; IS__TUNIT_NPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__TUNIT_NPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__TUNIT_NPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__TUNIT_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__TUNIT_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture noundef align 1073741824 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@t2_caller
@@ -249,7 +249,7 @@ define void @t2_caller(i32* noalias %a) {
 ; IS__CGSCC_OPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__CGSCC_OPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__CGSCC_OPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__CGSCC_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__CGSCC_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture noundef align 1073741824 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@t2_caller
@@ -261,7 +261,7 @@ define void @t2_caller(i32* noalias %a) {
 ; IS__CGSCC_NPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__CGSCC_NPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__CGSCC_NPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__CGSCC_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__CGSCC_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture noundef align 1073741824 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
 entry:
@@ -325,8 +325,8 @@ define void @t3_caller(i32* noalias %a) {
 ; IS__TUNIT_OPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__TUNIT_OPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__TUNIT_OPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__TUNIT_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
-; IS__TUNIT_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__TUNIT_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 1073741824 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__TUNIT_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 1073741824 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@t3_caller
@@ -338,8 +338,8 @@ define void @t3_caller(i32* noalias %a) {
 ; IS__TUNIT_NPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__TUNIT_NPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__TUNIT_NPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__TUNIT_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
-; IS__TUNIT_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__TUNIT_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 1073741824 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__TUNIT_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 1073741824 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@t3_caller
@@ -351,8 +351,8 @@ define void @t3_caller(i32* noalias %a) {
 ; IS__CGSCC_OPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__CGSCC_OPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__CGSCC_OPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__CGSCC_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
-; IS__CGSCC_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__CGSCC_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 1073741824 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__CGSCC_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 1073741824 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@t3_caller
@@ -364,8 +364,8 @@ define void @t3_caller(i32* noalias %a) {
 ; IS__CGSCC_NPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__CGSCC_NPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__CGSCC_NPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__CGSCC_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
-; IS__CGSCC_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__CGSCC_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 1073741824 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__CGSCC_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 1073741824 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(8) [[C]])
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
 entry:

diff  --git a/llvm/test/Transforms/Attributor/liveness.ll b/llvm/test/Transforms/Attributor/liveness.ll
index 8370d7810a297..faf82079cc49e 100644
--- a/llvm/test/Transforms/Attributor/liveness.ll
+++ b/llvm/test/Transforms/Attributor/liveness.ll
@@ -527,13 +527,13 @@ define void @ub(i32* %0) {
 ; IS__TUNIT_NPM: Function Attrs: argmemonly nofree nosync nounwind willreturn writeonly
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@ub
 ; IS__TUNIT_NPM-SAME: (i32* nocapture nofree readnone [[TMP0:%.*]]) #[[ATTR8:[0-9]+]] {
-; IS__TUNIT_NPM-NEXT:    store i32 0, i32* undef, align 536870912
+; IS__TUNIT_NPM-NEXT:    store i32 0, i32* undef, align 1073741824
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC____: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@ub
 ; IS__CGSCC____-SAME: (i32* nocapture nofree readnone [[TMP0:%.*]]) #[[ATTR10:[0-9]+]] {
-; IS__CGSCC____-NEXT:    store i32 0, i32* undef, align 536870912
+; IS__CGSCC____-NEXT:    store i32 0, i32* undef, align 1073741824
 ; IS__CGSCC____-NEXT:    ret void
 ;
   %poison = sub nuw i32 0, 1           ; Results in a poison value.

diff  --git a/llvm/test/Transforms/Attributor/memory_locations.ll b/llvm/test/Transforms/Attributor/memory_locations.ll
index 53d2894b53cb0..b9a97aceb60e1 100644
--- a/llvm/test/Transforms/Attributor/memory_locations.ll
+++ b/llvm/test/Transforms/Attributor/memory_locations.ll
@@ -397,7 +397,7 @@ define void @callerC2() {
 }
 define void @callerD1() {
 ; CHECK-LABEL: define {{[^@]+}}@callerD1() {
-; CHECK-NEXT:    [[UNKNOWN:%.*]] = call i8* @argmem_only(i8* noalias nocapture noundef align 536870912 null)
+; CHECK-NEXT:    [[UNKNOWN:%.*]] = call i8* @argmem_only(i8* noalias nocapture noundef align 1073741824 null)
 ; CHECK-NEXT:    store i8 0, i8* [[UNKNOWN]], align 1
 ; CHECK-NEXT:    ret void
 ;
@@ -407,7 +407,7 @@ define void @callerD1() {
 }
 define void @callerD2() {
 ; CHECK-LABEL: define {{[^@]+}}@callerD2() {
-; CHECK-NEXT:    [[UNKNOWN:%.*]] = call i8* @inaccesible_argmem_only_decl(i8* noalias nocapture noundef align 536870912 null)
+; CHECK-NEXT:    [[UNKNOWN:%.*]] = call i8* @inaccesible_argmem_only_decl(i8* noalias nocapture noundef align 1073741824 null)
 ; CHECK-NEXT:    store i8 0, i8* [[UNKNOWN]], align 1
 ; CHECK-NEXT:    ret void
 ;

diff  --git a/llvm/test/Transforms/Attributor/noalias.ll b/llvm/test/Transforms/Attributor/noalias.ll
index 2dc3d42533fdd..820f68185a398 100644
--- a/llvm/test/Transforms/Attributor/noalias.ll
+++ b/llvm/test/Transforms/Attributor/noalias.ll
@@ -265,7 +265,7 @@ define i8* @test8(i32* %0) nounwind uwtable {
 declare void @use_i8(i8* nocapture)
 define internal void @test9a(i8* %a, i8* %b) {
 ; CHECK-LABEL: define {{[^@]+}}@test9a() {
-; CHECK-NEXT:    call void @use_i8(i8* noalias nocapture noundef align 536870912 null)
+; CHECK-NEXT:    call void @use_i8(i8* noalias nocapture noundef align 1073741824 null)
 ; CHECK-NEXT:    ret void
 ;
   call void @use_i8(i8* null)

diff  --git a/llvm/test/Transforms/Attributor/nocapture-1.ll b/llvm/test/Transforms/Attributor/nocapture-1.ll
index e27d37ccde6d1..544f3bde7c72f 100644
--- a/llvm/test/Transforms/Attributor/nocapture-1.ll
+++ b/llvm/test/Transforms/Attributor/nocapture-1.ll
@@ -478,7 +478,7 @@ define i8* @test4_2(i8* %x4_2, i8* %y4_2, i8* %z4_2, i1 %c) {
 ; IS________OPM-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]] {
 ; IS________OPM-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; IS________OPM:       t:
-; IS________OPM-NEXT:    call void @test4_1(i8* noalias nocapture nofree noundef readnone align 536870912 null, i1 [[C]]) #[[ATTR7]]
+; IS________OPM-NEXT:    call void @test4_1(i8* noalias nocapture nofree noundef readnone align 1073741824 null, i1 [[C]]) #[[ATTR7]]
 ; IS________OPM-NEXT:    store i32* null, i32** @g, align 8
 ; IS________OPM-NEXT:    br label [[F]]
 ; IS________OPM:       f:
@@ -489,7 +489,7 @@ define i8* @test4_2(i8* %x4_2, i8* %y4_2, i8* %z4_2, i1 %c) {
 ; IS________NPM-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]] {
 ; IS________NPM-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; IS________NPM:       t:
-; IS________NPM-NEXT:    call void @test4_1(i8* noalias nocapture nofree noundef readnone align 536870912 null, i1 noundef [[C]]) #[[ATTR7]]
+; IS________NPM-NEXT:    call void @test4_1(i8* noalias nocapture nofree noundef readnone align 1073741824 null, i1 noundef [[C]]) #[[ATTR7]]
 ; IS________NPM-NEXT:    store i32* null, i32** @g, align 8
 ; IS________NPM-NEXT:    br label [[F]]
 ; IS________NPM:       f:
@@ -807,7 +807,7 @@ declare void @unknown(i8*)
 define void @test_callsite() {
 ; CHECK-LABEL: define {{[^@]+}}@test_callsite() {
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    call void @unknown(i8* noalias nocapture noundef align 536870912 null)
+; CHECK-NEXT:    call void @unknown(i8* noalias nocapture noundef align 1073741824 null)
 ; CHECK-NEXT:    ret void
 ;
 entry:

diff  --git a/llvm/test/Transforms/Attributor/noundef.ll b/llvm/test/Transforms/Attributor/noundef.ll
index b42c1777c9477..efddca92b4a2d 100644
--- a/llvm/test/Transforms/Attributor/noundef.ll
+++ b/llvm/test/Transforms/Attributor/noundef.ll
@@ -41,7 +41,7 @@ define void @caller1() {
 
 define internal void @argument_dead_callback_callee(i8* %c) {
 ; CHECK-LABEL: define {{[^@]+}}@argument_dead_callback_callee
-; CHECK-SAME: (i8* noalias nocapture nofree readnone align 536870912 [[C:%.*]]) {
+; CHECK-SAME: (i8* noalias nocapture nofree readnone align 1073741824 [[C:%.*]]) {
 ; CHECK-NEXT:    call void @unknown()
 ; CHECK-NEXT:    ret void
 ;
@@ -51,11 +51,11 @@ define internal void @argument_dead_callback_callee(i8* %c) {
 
 define void @callback_caller() {
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@callback_caller() {
-; IS__TUNIT____-NEXT:    call void @callback_broker(void (i8*)* noundef @argument_dead_callback_callee, i8* noalias nocapture nofree readnone align 536870912 undef)
+; IS__TUNIT____-NEXT:    call void @callback_broker(void (i8*)* noundef @argument_dead_callback_callee, i8* noalias nocapture nofree readnone align 1073741824 undef)
 ; IS__TUNIT____-NEXT:    ret void
 ;
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@callback_caller() {
-; IS__CGSCC____-NEXT:    call void @callback_broker(void (i8*)* noundef @argument_dead_callback_callee, i8* noalias nocapture nofree noundef readnone align 536870912 null)
+; IS__CGSCC____-NEXT:    call void @callback_broker(void (i8*)* noundef @argument_dead_callback_callee, i8* noalias nocapture nofree noundef readnone align 1073741824 null)
 ; IS__CGSCC____-NEXT:    ret void
 ;
   call void @callback_broker(void (i8*)* @argument_dead_callback_callee, i8* null)

diff  --git a/llvm/test/Transforms/Attributor/undefined_behavior.ll b/llvm/test/Transforms/Attributor/undefined_behavior.ll
index 12fb5319570e1..71063d4f5f16a 100644
--- a/llvm/test/Transforms/Attributor/undefined_behavior.ll
+++ b/llvm/test/Transforms/Attributor/undefined_behavior.ll
@@ -134,13 +134,13 @@ define void @store_wholly_unreachable_volatile() {
 ; IS__TUNIT____: Function Attrs: nofree nounwind readnone willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@store_wholly_unreachable_volatile
 ; IS__TUNIT____-SAME: () #[[ATTR2:[0-9]+]] {
-; IS__TUNIT____-NEXT:    store volatile i32 5, i32* null, align 536870912
+; IS__TUNIT____-NEXT:    store volatile i32 5, i32* null, align 1073741824
 ; IS__TUNIT____-NEXT:    ret void
 ;
 ; IS__CGSCC____: Function Attrs: nofree norecurse nounwind readnone willreturn
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@store_wholly_unreachable_volatile
 ; IS__CGSCC____-SAME: () #[[ATTR2:[0-9]+]] {
-; IS__CGSCC____-NEXT:    store volatile i32 5, i32* null, align 536870912
+; IS__CGSCC____-NEXT:    store volatile i32 5, i32* null, align 1073741824
 ; IS__CGSCC____-NEXT:    ret void
 ;
   store volatile i32 5, i32* null
@@ -178,13 +178,13 @@ define void @store_null_pointer_is_defined() null_pointer_is_valid {
 ; IS__TUNIT____: Function Attrs: nofree nosync nounwind null_pointer_is_valid willreturn writeonly
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@store_null_pointer_is_defined
 ; IS__TUNIT____-SAME: () #[[ATTR3:[0-9]+]] {
-; IS__TUNIT____-NEXT:    store i32 5, i32* null, align 536870912
+; IS__TUNIT____-NEXT:    store i32 5, i32* null, align 1073741824
 ; IS__TUNIT____-NEXT:    ret void
 ;
 ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind null_pointer_is_valid willreturn writeonly
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@store_null_pointer_is_defined
 ; IS__CGSCC____-SAME: () #[[ATTR3:[0-9]+]] {
-; IS__CGSCC____-NEXT:    store i32 5, i32* null, align 536870912
+; IS__CGSCC____-NEXT:    store i32 5, i32* null, align 1073741824
 ; IS__CGSCC____-NEXT:    ret void
 ;
   store i32 5, i32* null
@@ -832,7 +832,7 @@ define void @arg_nonnull_violation3_1(i1 %c) {
 ; IS__TUNIT____-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; IS__TUNIT____:       t:
 ; IS__TUNIT____-NEXT:    call void @arg_nonnull_12(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]]) #[[ATTR7:[0-9]+]]
-; IS__TUNIT____-NEXT:    call void @arg_nonnull_12(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* noalias nocapture nofree noundef writeonly align 536870912 null) #[[ATTR7]]
+; IS__TUNIT____-NEXT:    call void @arg_nonnull_12(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* noalias nocapture nofree noundef writeonly align 1073741824 null) #[[ATTR7]]
 ; IS__TUNIT____-NEXT:    unreachable
 ; IS__TUNIT____:       f:
 ; IS__TUNIT____-NEXT:    unreachable
@@ -846,7 +846,7 @@ define void @arg_nonnull_violation3_1(i1 %c) {
 ; IS__CGSCC____-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; IS__CGSCC____:       t:
 ; IS__CGSCC____-NEXT:    call void @arg_nonnull_12(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]]) #[[ATTR7:[0-9]+]]
-; IS__CGSCC____-NEXT:    call void @arg_nonnull_12(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* noalias nocapture nofree noundef writeonly align 536870912 null) #[[ATTR7]]
+; IS__CGSCC____-NEXT:    call void @arg_nonnull_12(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* noalias nocapture nofree noundef writeonly align 1073741824 null) #[[ATTR7]]
 ; IS__CGSCC____-NEXT:    unreachable
 ; IS__CGSCC____:       f:
 ; IS__CGSCC____-NEXT:    unreachable
@@ -879,7 +879,7 @@ define void @arg_nonnull_violation3_2(i1 %c) {
 ; IS__TUNIT____-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; IS__TUNIT____:       t:
 ; IS__TUNIT____-NEXT:    call void @arg_nonnull_12_noundef_2(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]]) #[[ATTR7]]
-; IS__TUNIT____-NEXT:    call void @arg_nonnull_12_noundef_2(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* noalias nocapture nofree noundef writeonly align 536870912 null) #[[ATTR7]]
+; IS__TUNIT____-NEXT:    call void @arg_nonnull_12_noundef_2(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* noalias nocapture nofree noundef writeonly align 1073741824 null) #[[ATTR7]]
 ; IS__TUNIT____-NEXT:    unreachable
 ; IS__TUNIT____:       f:
 ; IS__TUNIT____-NEXT:    unreachable
@@ -893,7 +893,7 @@ define void @arg_nonnull_violation3_2(i1 %c) {
 ; IS__CGSCC____-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; IS__CGSCC____:       t:
 ; IS__CGSCC____-NEXT:    call void @arg_nonnull_12_noundef_2(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]]) #[[ATTR7]]
-; IS__CGSCC____-NEXT:    call void @arg_nonnull_12_noundef_2(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* noalias nocapture nofree noundef writeonly align 536870912 null) #[[ATTR7]]
+; IS__CGSCC____-NEXT:    call void @arg_nonnull_12_noundef_2(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* noalias nocapture nofree noundef writeonly align 1073741824 null) #[[ATTR7]]
 ; IS__CGSCC____-NEXT:    unreachable
 ; IS__CGSCC____:       f:
 ; IS__CGSCC____-NEXT:    unreachable

diff  --git a/llvm/test/Transforms/Attributor/value-simplify.ll b/llvm/test/Transforms/Attributor/value-simplify.ll
index d30f11bda95ec..1ff50ec5afa16 100644
--- a/llvm/test/Transforms/Attributor/value-simplify.ll
+++ b/llvm/test/Transforms/Attributor/value-simplify.ll
@@ -449,12 +449,12 @@ define i32* @complicated_args_inalloca(i32* %arg) {
 define internal i32* @test_preallocated(i32* preallocated(i32) %a) {
 ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@test_preallocated
-; IS__TUNIT____-SAME: (i32* noalias nofree noundef nonnull returned writeonly preallocated(i32) align 536870912 dereferenceable(4) "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR1]] {
+; IS__TUNIT____-SAME: (i32* noalias nofree noundef nonnull returned writeonly preallocated(i32) align 1073741824 dereferenceable(4) "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR1]] {
 ; IS__TUNIT____-NEXT:    ret i32* [[A]]
 ;
 ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@test_preallocated
-; IS__CGSCC____-SAME: (i32* noalias nofree noundef nonnull returned writeonly preallocated(i32) align 536870912 dereferenceable(4) "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR1]] {
+; IS__CGSCC____-SAME: (i32* noalias nofree noundef nonnull returned writeonly preallocated(i32) align 1073741824 dereferenceable(4) "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR1]] {
 ; IS__CGSCC____-NEXT:    ret i32* [[A]]
 ;
   ret i32* %a
@@ -464,14 +464,14 @@ define i32* @complicated_args_preallocated() {
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@complicated_args_preallocated
 ; IS__TUNIT_OPM-SAME: () #[[ATTR0:[0-9]+]] {
 ; IS__TUNIT_OPM-NEXT:    [[C:%.*]] = call token @llvm.call.preallocated.setup(i32 noundef 1) #[[ATTR5:[0-9]+]]
-; IS__TUNIT_OPM-NEXT:    [[CALL:%.*]] = call noundef nonnull align 536870912 dereferenceable(4) i32* @test_preallocated(i32* noalias nocapture nofree noundef writeonly preallocated(i32) align 536870912 null) #[[ATTR1]] [ "preallocated"(token [[C]]) ]
+; IS__TUNIT_OPM-NEXT:    [[CALL:%.*]] = call noundef nonnull align 1073741824 dereferenceable(4) i32* @test_preallocated(i32* noalias nocapture nofree noundef writeonly preallocated(i32) align 1073741824 null) #[[ATTR1]] [ "preallocated"(token [[C]]) ]
 ; IS__TUNIT_OPM-NEXT:    ret i32* [[CALL]]
 ;
 ; IS__TUNIT_NPM: Function Attrs: nofree nosync nounwind willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@complicated_args_preallocated
 ; IS__TUNIT_NPM-SAME: () #[[ATTR0:[0-9]+]] {
 ; IS__TUNIT_NPM-NEXT:    [[C:%.*]] = call token @llvm.call.preallocated.setup(i32 noundef 1) #[[ATTR4:[0-9]+]]
-; IS__TUNIT_NPM-NEXT:    [[CALL:%.*]] = call noundef nonnull align 536870912 dereferenceable(4) i32* @test_preallocated(i32* noalias nocapture nofree noundef writeonly preallocated(i32) align 536870912 null) #[[ATTR1]] [ "preallocated"(token [[C]]) ]
+; IS__TUNIT_NPM-NEXT:    [[CALL:%.*]] = call noundef nonnull align 1073741824 dereferenceable(4) i32* @test_preallocated(i32* noalias nocapture nofree noundef writeonly preallocated(i32) align 1073741824 null) #[[ATTR1]] [ "preallocated"(token [[C]]) ]
 ; IS__TUNIT_NPM-NEXT:    ret i32* [[CALL]]
 ;
 ; IS__CGSCC_OPM: Function Attrs: nofree nosync nounwind willreturn
@@ -495,13 +495,13 @@ define internal void @test_sret(%struct.X* sret(%struct.X) %a, %struct.X** %b) {
 ;
 ; IS__TUNIT____: Function Attrs: argmemonly nofree nosync nounwind willreturn writeonly
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@test_sret
-; IS__TUNIT____-SAME: (%struct.X* noalias nofree noundef nonnull writeonly sret([[STRUCT_X:%.*]]) align 536870912 dereferenceable(8) [[A:%.*]], %struct.X** nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[B:%.*]]) #[[ATTR2:[0-9]+]] {
+; IS__TUNIT____-SAME: (%struct.X* noalias nofree noundef nonnull writeonly sret([[STRUCT_X:%.*]]) align 1073741824 dereferenceable(8) [[A:%.*]], %struct.X** nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[B:%.*]]) #[[ATTR2:[0-9]+]] {
 ; IS__TUNIT____-NEXT:    store %struct.X* [[A]], %struct.X** [[B]], align 8
 ; IS__TUNIT____-NEXT:    ret void
 ;
 ; IS__CGSCC____: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@test_sret
-; IS__CGSCC____-SAME: (%struct.X* noalias nofree noundef nonnull writeonly sret([[STRUCT_X:%.*]]) align 536870912 dereferenceable(8) [[A:%.*]], %struct.X** nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[B:%.*]]) #[[ATTR2:[0-9]+]] {
+; IS__CGSCC____-SAME: (%struct.X* noalias nofree noundef nonnull writeonly sret([[STRUCT_X:%.*]]) align 1073741824 dereferenceable(8) [[A:%.*]], %struct.X** nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[B:%.*]]) #[[ATTR2:[0-9]+]] {
 ; IS__CGSCC____-NEXT:    store %struct.X* [[A]], %struct.X** [[B]], align 8
 ; IS__CGSCC____-NEXT:    ret void
 ;
@@ -514,13 +514,13 @@ define void @complicated_args_sret(%struct.X** %b) {
 ; IS__TUNIT_OPM: Function Attrs: argmemonly nofree nosync nounwind willreturn writeonly
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@complicated_args_sret
 ; IS__TUNIT_OPM-SAME: (%struct.X** nocapture nofree writeonly [[B:%.*]]) #[[ATTR2]] {
-; IS__TUNIT_OPM-NEXT:    call void @test_sret(%struct.X* noalias nocapture nofree noundef writeonly sret([[STRUCT_X:%.*]]) align 536870912 null, %struct.X** nocapture nofree writeonly align 8 [[B]]) #[[ATTR4:[0-9]+]]
+; IS__TUNIT_OPM-NEXT:    call void @test_sret(%struct.X* noalias nocapture nofree noundef writeonly sret([[STRUCT_X:%.*]]) align 1073741824 null, %struct.X** nocapture nofree writeonly align 8 [[B]]) #[[ATTR4:[0-9]+]]
 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM: Function Attrs: argmemonly nofree nosync nounwind willreturn writeonly
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@complicated_args_sret
 ; IS__TUNIT_NPM-SAME: (%struct.X** nocapture nofree writeonly [[B:%.*]]) #[[ATTR2]] {
-; IS__TUNIT_NPM-NEXT:    call void @test_sret(%struct.X* noalias nocapture nofree noundef writeonly sret([[STRUCT_X:%.*]]) align 536870912 null, %struct.X** nocapture nofree writeonly align 8 [[B]]) #[[ATTR3:[0-9]+]]
+; IS__TUNIT_NPM-NEXT:    call void @test_sret(%struct.X* noalias nocapture nofree noundef writeonly sret([[STRUCT_X:%.*]]) align 1073741824 null, %struct.X** nocapture nofree writeonly align 8 [[B]]) #[[ATTR3:[0-9]+]]
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC____: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
@@ -535,7 +535,7 @@ define void @complicated_args_sret(%struct.X** %b) {
 define internal %struct.X* @test_nest(%struct.X* nest %a) {
 ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@test_nest
-; IS__CGSCC____-SAME: (%struct.X* nest noalias nocapture nofree readnone align 536870912 [[A:%.*]]) #[[ATTR1]] {
+; IS__CGSCC____-SAME: (%struct.X* nest noalias nocapture nofree readnone align 1073741824 [[A:%.*]]) #[[ATTR1]] {
 ; IS__CGSCC____-NEXT:    ret %struct.X* undef
 ;
   ret %struct.X* %a

diff  --git a/llvm/test/Transforms/GVN/PRE/2017-06-28-pre-load-dbgloc.ll b/llvm/test/Transforms/GVN/PRE/2017-06-28-pre-load-dbgloc.ll
index 8c1a59a7aea20..0a9c758b8e2e9 100644
--- a/llvm/test/Transforms/GVN/PRE/2017-06-28-pre-load-dbgloc.ll
+++ b/llvm/test/Transforms/GVN/PRE/2017-06-28-pre-load-dbgloc.ll
@@ -38,7 +38,7 @@ entry:
 ; ALL: br i1 %tobool, label %entry.cond.end_crit_edge, label %cond.false, !dbg [[LOC_15_6:![0-9]+]]
 ; ALL: entry.cond.end_crit_edge:
 ; GVN: %.pre = load %struct.node*, %struct.node** null, align 8, !dbg [[LOC_16_13:![0-9]+]]
-; INSTCOMBINE:store %struct.node* poison, %struct.node** null, align 536870912, !dbg [[LOC_16_13:![0-9]+]]
+; INSTCOMBINE:store %struct.node* poison, %struct.node** null, align 1073741824, !dbg [[LOC_16_13:![0-9]+]]
 
 cond.false:
   %0 = bitcast %struct.desc* %desc to i8***, !dbg !11

diff  --git a/llvm/test/Transforms/InstCombine/atomic.ll b/llvm/test/Transforms/InstCombine/atomic.ll
index 6004729f9c777..de1bc6707f7e8 100644
--- a/llvm/test/Transforms/InstCombine/atomic.ll
+++ b/llvm/test/Transforms/InstCombine/atomic.ll
@@ -119,7 +119,7 @@ define i32 @test8(i32* %p) {
 ; ordering imposed.
 define i32 @test9() {
 ; CHECK-LABEL: @test9(
-; CHECK-NEXT:    store i32 poison, i32* null, align 536870912
+; CHECK-NEXT:    store i32 poison, i32* null, align 1073741824
 ; CHECK-NEXT:    ret i32 poison
 ;
   %x = load atomic i32, i32* null unordered, align 4
@@ -128,7 +128,7 @@ define i32 @test9() {
 
 define i32 @test9_no_null_opt() #0 {
 ; CHECK-LABEL: @test9_no_null_opt(
-; CHECK-NEXT:    [[X:%.*]] = load atomic i32, i32* null unordered, align 536870912
+; CHECK-NEXT:    [[X:%.*]] = load atomic i32, i32* null unordered, align 1073741824
 ; CHECK-NEXT:    ret i32 [[X]]
 ;
   %x = load atomic i32, i32* null unordered, align 4
@@ -138,7 +138,7 @@ define i32 @test9_no_null_opt() #0 {
 ; FIXME: Could also fold
 define i32 @test10() {
 ; CHECK-LABEL: @test10(
-; CHECK-NEXT:    [[X:%.*]] = load atomic i32, i32* null monotonic, align 536870912
+; CHECK-NEXT:    [[X:%.*]] = load atomic i32, i32* null monotonic, align 1073741824
 ; CHECK-NEXT:    ret i32 [[X]]
 ;
   %x = load atomic i32, i32* null monotonic, align 4
@@ -147,7 +147,7 @@ define i32 @test10() {
 
 define i32 @test10_no_null_opt() #0 {
 ; CHECK-LABEL: @test10_no_null_opt(
-; CHECK-NEXT:    [[X:%.*]] = load atomic i32, i32* null monotonic, align 536870912
+; CHECK-NEXT:    [[X:%.*]] = load atomic i32, i32* null monotonic, align 1073741824
 ; CHECK-NEXT:    ret i32 [[X]]
 ;
   %x = load atomic i32, i32* null monotonic, align 4
@@ -157,7 +157,7 @@ define i32 @test10_no_null_opt() #0 {
 ; Would this be legal to fold?  Probably?
 define i32 @test11() {
 ; CHECK-LABEL: @test11(
-; CHECK-NEXT:    [[X:%.*]] = load atomic i32, i32* null seq_cst, align 536870912
+; CHECK-NEXT:    [[X:%.*]] = load atomic i32, i32* null seq_cst, align 1073741824
 ; CHECK-NEXT:    ret i32 [[X]]
 ;
   %x = load atomic i32, i32* null seq_cst, align 4
@@ -166,7 +166,7 @@ define i32 @test11() {
 
 define i32 @test11_no_null_opt() #0 {
 ; CHECK-LABEL: @test11_no_null_opt(
-; CHECK-NEXT:    [[X:%.*]] = load atomic i32, i32* null seq_cst, align 536870912
+; CHECK-NEXT:    [[X:%.*]] = load atomic i32, i32* null seq_cst, align 1073741824
 ; CHECK-NEXT:    ret i32 [[X]]
 ;
   %x = load atomic i32, i32* null seq_cst, align 4
@@ -177,7 +177,7 @@ define i32 @test11_no_null_opt() #0 {
 ; ordering imposed.
 define i32 @test12() {
 ; CHECK-LABEL: @test12(
-; CHECK-NEXT:    store atomic i32 poison, i32* null unordered, align 536870912
+; CHECK-NEXT:    store atomic i32 poison, i32* null unordered, align 1073741824
 ; CHECK-NEXT:    ret i32 0
 ;
   store atomic i32 0, i32* null unordered, align 4
@@ -186,7 +186,7 @@ define i32 @test12() {
 
 define i32 @test12_no_null_opt() #0 {
 ; CHECK-LABEL: @test12_no_null_opt(
-; CHECK-NEXT:    store atomic i32 0, i32* null unordered, align 536870912
+; CHECK-NEXT:    store atomic i32 0, i32* null unordered, align 1073741824
 ; CHECK-NEXT:    ret i32 0
 ;
   store atomic i32 0, i32* null unordered, align 4
@@ -196,7 +196,7 @@ define i32 @test12_no_null_opt() #0 {
 ; FIXME: Could also fold
 define i32 @test13() {
 ; CHECK-LABEL: @test13(
-; CHECK-NEXT:    store atomic i32 0, i32* null monotonic, align 536870912
+; CHECK-NEXT:    store atomic i32 0, i32* null monotonic, align 1073741824
 ; CHECK-NEXT:    ret i32 0
 ;
   store atomic i32 0, i32* null monotonic, align 4
@@ -205,7 +205,7 @@ define i32 @test13() {
 
 define i32 @test13_no_null_opt() #0 {
 ; CHECK-LABEL: @test13_no_null_opt(
-; CHECK-NEXT:    store atomic i32 0, i32* null monotonic, align 536870912
+; CHECK-NEXT:    store atomic i32 0, i32* null monotonic, align 1073741824
 ; CHECK-NEXT:    ret i32 0
 ;
   store atomic i32 0, i32* null monotonic, align 4
@@ -215,7 +215,7 @@ define i32 @test13_no_null_opt() #0 {
 ; Would this be legal to fold?  Probably?
 define i32 @test14() {
 ; CHECK-LABEL: @test14(
-; CHECK-NEXT:    store atomic i32 0, i32* null seq_cst, align 536870912
+; CHECK-NEXT:    store atomic i32 0, i32* null seq_cst, align 1073741824
 ; CHECK-NEXT:    ret i32 0
 ;
   store atomic i32 0, i32* null seq_cst, align 4
@@ -224,7 +224,7 @@ define i32 @test14() {
 
 define i32 @test14_no_null_opt() #0 {
 ; CHECK-LABEL: @test14_no_null_opt(
-; CHECK-NEXT:    store atomic i32 0, i32* null seq_cst, align 536870912
+; CHECK-NEXT:    store atomic i32 0, i32* null seq_cst, align 1073741824
 ; CHECK-NEXT:    ret i32 0
 ;
   store atomic i32 0, i32* null seq_cst, align 4

diff  --git a/llvm/test/Transforms/InstCombine/getelementptr.ll b/llvm/test/Transforms/InstCombine/getelementptr.ll
index f2a336767fda5..31dca16f0c792 100644
--- a/llvm/test/Transforms/InstCombine/getelementptr.ll
+++ b/llvm/test/Transforms/InstCombine/getelementptr.ll
@@ -495,7 +495,7 @@ define i1 @test23() {
 define void @test25() {
 ; CHECK-LABEL: @test25(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    store i64 poison, i64* null, align 536870912
+; CHECK-NEXT:    store i64 poison, i64* null, align 1073741824
 ; CHECK-NEXT:    tail call void @foo25(i32 0, i64 poison)
 ; CHECK-NEXT:    unreachable
 ;
@@ -613,7 +613,7 @@ declare i32 @printf(i8*, ...)
 define i32 @test29(i8* %start, i32 %X) nounwind {
 ; CHECK-LABEL: @test29(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    store i64 poison, i64* null, align 536870912
+; CHECK-NEXT:    store i64 poison, i64* null, align 1073741824
 ; CHECK-NEXT:    br i1 poison, label [[IF_THEN216:%.*]], label [[IF_END363:%.*]]
 ; CHECK:       if.then216:
 ; CHECK-NEXT:    ret i32 1

diff  --git a/llvm/test/Transforms/InstCombine/load.ll b/llvm/test/Transforms/InstCombine/load.ll
index 38143d956b67f..8826a212e065c 100644
--- a/llvm/test/Transforms/InstCombine/load.ll
+++ b/llvm/test/Transforms/InstCombine/load.ll
@@ -59,7 +59,7 @@ define i32 @test5(i1 %C) {
 
 define i32 @load_gep_null_inbounds(i64 %X) {
 ; CHECK-LABEL: @load_gep_null_inbounds(
-; CHECK-NEXT:    store i32 poison, i32* null, align 536870912
+; CHECK-NEXT:    store i32 poison, i32* null, align 1073741824
 ; CHECK-NEXT:    ret i32 poison
 ;
   %V = getelementptr inbounds i32, i32* null, i64 %X
@@ -69,7 +69,7 @@ define i32 @load_gep_null_inbounds(i64 %X) {
 
 define i32 @load_gep_null_not_inbounds(i64 %X) {
 ; CHECK-LABEL: @load_gep_null_not_inbounds(
-; CHECK-NEXT:    store i32 poison, i32* null, align 536870912
+; CHECK-NEXT:    store i32 poison, i32* null, align 1073741824
 ; CHECK-NEXT:    ret i32 poison
 ;
   %V = getelementptr i32, i32* null, i64 %X

diff  --git a/llvm/test/Transforms/InstCombine/mempcpy.ll b/llvm/test/Transforms/InstCombine/mempcpy.ll
index 53ce9d9522949..713f706709604 100644
--- a/llvm/test/Transforms/InstCombine/mempcpy.ll
+++ b/llvm/test/Transforms/InstCombine/mempcpy.ll
@@ -57,7 +57,7 @@ define i8* @memcpy_big_const_n(i8* %d, i8* nocapture readonly %s) {
 
 define i32 @PR48810() {
 ; CHECK-LABEL: @PR48810(
-; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 1 undef, i8* align 536870912 null, i64 undef, i1 false)
+; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 1 undef, i8* align 1073741824 null, i64 undef, i1 false)
 ; CHECK-NEXT:    ret i32 undef
 ;
   %r = call dereferenceable(1) i8* @mempcpy(i8* undef, i8* null, i64 undef)

diff  --git a/llvm/test/Transforms/InstCombine/pr44245.ll b/llvm/test/Transforms/InstCombine/pr44245.ll
index 28a4b59ec3941..69b132b01b2cc 100644
--- a/llvm/test/Transforms/InstCombine/pr44245.ll
+++ b/llvm/test/Transforms/InstCombine/pr44245.ll
@@ -159,7 +159,7 @@ define void @test_2(i1 %c) local_unnamed_addr {
 ; CHECK:       cond.true133:
 ; CHECK-NEXT:    br label [[COND_END144:%.*]]
 ; CHECK:       cond.false138:
-; CHECK-NEXT:    store %type_2* poison, %type_2** null, align 536870912
+; CHECK-NEXT:    store %type_2* poison, %type_2** null, align 1073741824
 ; CHECK-NEXT:    br label [[COND_END144]]
 ; CHECK:       cond.end144:
 ; CHECK-NEXT:    br label [[WHILE_COND]]

diff  --git a/llvm/test/Transforms/InstCombine/store.ll b/llvm/test/Transforms/InstCombine/store.ll
index 35229b62d76e3..8a28a0f38f60b 100644
--- a/llvm/test/Transforms/InstCombine/store.ll
+++ b/llvm/test/Transforms/InstCombine/store.ll
@@ -4,7 +4,7 @@
 define void @test1(i32* %P) {
 ; CHECK-LABEL: @test1(
 ; CHECK-NEXT:    store i32 123, i32* undef, align 4
-; CHECK-NEXT:    store i32 poison, i32* null, align 536870912
+; CHECK-NEXT:    store i32 poison, i32* null, align 1073741824
 ; CHECK-NEXT:    ret void
 ;
   store i32 undef, i32* %P

diff  --git a/llvm/test/Transforms/OpenMP/parallel_level_fold.ll b/llvm/test/Transforms/OpenMP/parallel_level_fold.ll
index 75530a38d9764..f951b270aa55a 100644
--- a/llvm/test/Transforms/OpenMP/parallel_level_fold.ll
+++ b/llvm/test/Transforms/OpenMP/parallel_level_fold.ll
@@ -49,9 +49,9 @@ define weak void @spmd() {
 
 define weak void @parallel() {
 ; CHECK-LABEL: define {{[^@]+}}@parallel() {
-; CHECK-NEXT:    [[I:%.*]] = call i32 @__kmpc_target_init(%struct.ident_t* align 536870912 null, i1 true, i1 false, i1 false)
+; CHECK-NEXT:    [[I:%.*]] = call i32 @__kmpc_target_init(%struct.ident_t* align 1073741824 null, i1 true, i1 false, i1 false)
 ; CHECK-NEXT:    call void @spmd_helper()
-; CHECK-NEXT:    call void @__kmpc_parallel_51(%struct.ident_t* noalias noundef align 536870912 null, i32 noundef 0, i32 noundef 0, i32 noundef 0, i32 noundef 0, i8* noalias noundef align 536870912 null, i8* noalias noundef align 536870912 null, i8** noalias noundef align 536870912 null, i64 noundef 0)
+; CHECK-NEXT:    call void @__kmpc_parallel_51(%struct.ident_t* noalias noundef align 1073741824 null, i32 noundef 0, i32 noundef 0, i32 noundef 0, i32 noundef 0, i8* noalias noundef align 1073741824 null, i8* noalias noundef align 1073741824 null, i8** noalias noundef align 1073741824 null, i64 noundef 0)
 ; CHECK-NEXT:    call void @__kmpc_target_deinit(%struct.ident_t* null, i1 true, i1 false)
 ; CHECK-NEXT:    ret void
 ;
@@ -108,7 +108,7 @@ define internal void @spmd_helper() {
 
 define internal void @__kmpc_parallel_51(%struct.ident_t*, i32, i32, i32, i32, i8*, i8*, i8**, i64) {
 ; CHECK-LABEL: define {{[^@]+}}@__kmpc_parallel_51
-; CHECK-SAME: (%struct.ident_t* noalias nocapture nofree readnone align 536870912 [[TMP0:%.*]], i32 [[TMP1:%.*]], i32 [[TMP2:%.*]], i32 [[TMP3:%.*]], i32 [[TMP4:%.*]], i8* noalias nocapture nofree readnone align 536870912 [[TMP5:%.*]], i8* noalias nocapture nofree readnone align 536870912 [[TMP6:%.*]], i8** noalias nocapture nofree readnone align 536870912 [[TMP7:%.*]], i64 [[TMP8:%.*]]) #[[ATTR0:[0-9]+]] {
+; CHECK-SAME: (%struct.ident_t* noalias nocapture nofree readnone align 1073741824 [[TMP0:%.*]], i32 [[TMP1:%.*]], i32 [[TMP2:%.*]], i32 [[TMP3:%.*]], i32 [[TMP4:%.*]], i8* noalias nocapture nofree readnone align 1073741824 [[TMP5:%.*]], i8* noalias nocapture nofree readnone align 1073741824 [[TMP6:%.*]], i8** noalias nocapture nofree readnone align 1073741824 [[TMP7:%.*]], i64 [[TMP8:%.*]]) #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:    call void @parallel_helper()
 ; CHECK-NEXT:    ret void
 ;

diff  --git a/llvm/test/Verifier/align-md.ll b/llvm/test/Verifier/align-md.ll
index 2de489ec21ebf..9c628f32c2ae0 100644
--- a/llvm/test/Verifier/align-md.ll
+++ b/llvm/test/Verifier/align-md.ll
@@ -52,8 +52,8 @@ entry:
 
 define i8* @f7(i8** %x) {
 entry:
-  %y = load i8*, i8** %x, !align !{i64 1073741824}
+  %y = load i8*, i8** %x, !align !{i64 2147483648}
   ret i8* %y
 }
 ; CHECK: alignment is larger that implementation defined limit
-; CHECK-NEXT: load i8*, i8** %x
\ No newline at end of file
+; CHECK-NEXT: load i8*, i8** %x

diff  --git a/llvm/unittests/IR/ValueTest.cpp b/llvm/unittests/IR/ValueTest.cpp
index f94eec89ad617..5bc6c91c29edf 100644
--- a/llvm/unittests/IR/ValueTest.cpp
+++ b/llvm/unittests/IR/ValueTest.cpp
@@ -61,9 +61,9 @@ TEST(GlobalTest, CreateAddressSpace) {
                          GlobalVariable::NotThreadLocal,
                          1);
 
-  EXPECT_TRUE(Value::MaximumAlignment == 536870912U);
-  Dummy0->setAlignment(Align(536870912));
-  EXPECT_EQ(Dummy0->getAlignment(), 536870912U);
+  EXPECT_TRUE(Value::MaximumAlignment == 1073741824U);
+  Dummy0->setAlignment(Align(1073741824));
+  EXPECT_EQ(Dummy0->getAlignment(), 1073741824U);
 
   // Make sure the address space isn't dropped when returning this.
   Constant *Dummy1 = M->getOrInsertGlobal("dummy", Int32Ty);
@@ -101,7 +101,7 @@ TEST(GlobalTest, AlignDeath) {
                          Constant::getAllOnesValue(Int32Ty), "var", nullptr,
                          GlobalVariable::NotThreadLocal, 1);
 
-  EXPECT_DEATH(Var->setAlignment(Align(1073741824U)),
+  EXPECT_DEATH(Var->setAlignment(Align(2147483648U)),
                "Alignment is greater than MaximumAlignment");
 }
 #endif


        


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