[llvm-branch-commits] [llvm] AMDGPU: Add noalias.addrspace metadata when autoupgrading atomic intrinsics (PR #102599)
Matt Arsenault via llvm-branch-commits
llvm-branch-commits at lists.llvm.org
Fri Aug 9 04:08:05 PDT 2024
https://github.com/arsenm created https://github.com/llvm/llvm-project/pull/102599
This will be needed to continue generating the raw instruction in the flat case.
>From be3f530768b923491b5747bac5b005779bd46a7e Mon Sep 17 00:00:00 2001
From: Matt Arsenault <Matthew.Arsenault at amd.com>
Date: Fri, 9 Aug 2024 14:51:41 +0400
Subject: [PATCH] AMDGPU: Add noalias.addrspace metadata when autoupgrading
atomic intrinsics
This will be needed to continue generating the raw instruction in the flat case.
---
llvm/lib/IR/AutoUpgrade.cpp | 13 +++++++++-
llvm/test/Bitcode/amdgcn-atomic.ll | 39 ++++++++++++++++--------------
2 files changed, 33 insertions(+), 19 deletions(-)
diff --git a/llvm/lib/IR/AutoUpgrade.cpp b/llvm/lib/IR/AutoUpgrade.cpp
index ec719754183d5d..3f6ccbebd35ef2 100644
--- a/llvm/lib/IR/AutoUpgrade.cpp
+++ b/llvm/lib/IR/AutoUpgrade.cpp
@@ -34,9 +34,11 @@
#include "llvm/IR/IntrinsicsWebAssembly.h"
#include "llvm/IR/IntrinsicsX86.h"
#include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/MDBuilder.h"
#include "llvm/IR/Metadata.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Verifier.h"
+#include "llvm/Support/AMDGPUAddrSpace.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Regex.h"
@@ -4096,11 +4098,20 @@ static Value *upgradeAMDGCNIntrinsicCall(StringRef Name, CallBase *CI,
AtomicRMWInst *RMW =
Builder.CreateAtomicRMW(RMWOp, Ptr, Val, std::nullopt, Order, SSID);
- if (PtrTy->getAddressSpace() != 3) {
+ unsigned AddrSpace = PtrTy->getAddressSpace();
+ if (AddrSpace != AMDGPUAS::LOCAL_ADDRESS) {
RMW->setMetadata("amdgpu.no.fine.grained.memory",
MDNode::get(F->getContext(), {}));
}
+ if (AddrSpace == AMDGPUAS::FLAT_ADDRESS) {
+ MDBuilder MDB(F->getContext());
+ MDNode *RangeNotPrivate =
+ MDB.createRange(APInt(32, AMDGPUAS::PRIVATE_ADDRESS),
+ APInt(32, AMDGPUAS::PRIVATE_ADDRESS + 1));
+ RMW->setMetadata(LLVMContext::MD_noalias_addrspace, RangeNotPrivate);
+ }
+
if (IsVolatile)
RMW->setVolatile(true);
diff --git a/llvm/test/Bitcode/amdgcn-atomic.ll b/llvm/test/Bitcode/amdgcn-atomic.ll
index a114c27bafd4a2..5feba38e635f32 100644
--- a/llvm/test/Bitcode/amdgcn-atomic.ll
+++ b/llvm/test/Bitcode/amdgcn-atomic.ll
@@ -2,10 +2,10 @@
define void @atomic_inc(ptr %ptr0, ptr addrspace(1) %ptr1, ptr addrspace(3) %ptr3) {
- ; CHECK: atomicrmw uinc_wrap ptr %ptr0, i32 42 syncscope("agent") seq_cst, align 4, !amdgpu.no.fine.grained.memory !0
+ ; CHECK: atomicrmw uinc_wrap ptr %ptr0, i32 42 syncscope("agent") seq_cst, align 4, !noalias.addrspace !0, !amdgpu.no.fine.grained.memory !1{{$}}
%result0 = call i32 @llvm.amdgcn.atomic.inc.i32.p0(ptr %ptr0, i32 42, i32 0, i32 0, i1 false)
- ; CHECK: atomicrmw uinc_wrap ptr addrspace(1) %ptr1, i32 43 syncscope("agent") seq_cst, align 4, !amdgpu.no.fine.grained.memory !0
+ ; CHECK: atomicrmw uinc_wrap ptr addrspace(1) %ptr1, i32 43 syncscope("agent") seq_cst, align 4, !amdgpu.no.fine.grained.memory !1
%result1 = call i32 @llvm.amdgcn.atomic.inc.i32.p1(ptr addrspace(1) %ptr1, i32 43, i32 0, i32 0, i1 false)
; CHECK: atomicrmw uinc_wrap ptr addrspace(3) %ptr3, i32 46 syncscope("agent") seq_cst, align 4{{$}}
@@ -26,10 +26,10 @@ define void @atomic_inc(ptr %ptr0, ptr addrspace(1) %ptr1, ptr addrspace(3) %ptr
}
define void @atomic_dec(ptr %ptr0, ptr addrspace(1) %ptr1, ptr addrspace(3) %ptr3) {
- ; CHECK: atomicrmw udec_wrap ptr %ptr0, i32 42 syncscope("agent") seq_cst, align 4, !amdgpu.no.fine.grained.memory !0
+ ; CHECK: atomicrmw udec_wrap ptr %ptr0, i32 42 syncscope("agent") seq_cst, align 4, !noalias.addrspace !0, !amdgpu.no.fine.grained.memory !1{{$}}
%result0 = call i32 @llvm.amdgcn.atomic.dec.i32.p0(ptr %ptr0, i32 42, i32 0, i32 0, i1 false)
- ; CHECK: atomicrmw udec_wrap ptr addrspace(1) %ptr1, i32 43 syncscope("agent") seq_cst, align 4, !amdgpu.no.fine.grained.memory !0
+ ; CHECK: atomicrmw udec_wrap ptr addrspace(1) %ptr1, i32 43 syncscope("agent") seq_cst, align 4, !amdgpu.no.fine.grained.memory !1
%result1 = call i32 @llvm.amdgcn.atomic.dec.i32.p1(ptr addrspace(1) %ptr1, i32 43, i32 0, i32 0, i1 false)
; CHECK: atomicrmw udec_wrap ptr addrspace(3) %ptr3, i32 46 syncscope("agent") seq_cst, align 4{{$}}
@@ -51,49 +51,49 @@ define void @atomic_dec(ptr %ptr0, ptr addrspace(1) %ptr1, ptr addrspace(3) %ptr
; Test some invalid ordering handling
define void @ordering(ptr %ptr0, ptr addrspace(1) %ptr1, ptr addrspace(3) %ptr3) {
- ; CHECK: atomicrmw volatile uinc_wrap ptr %ptr0, i32 42 syncscope("agent") seq_cst, align 4, !amdgpu.no.fine.grained.memory !0
+ ; CHECK: atomicrmw volatile uinc_wrap ptr %ptr0, i32 42 syncscope("agent") seq_cst, align 4, !noalias.addrspace !0, !amdgpu.no.fine.grained.memory !1{{$}}
%result0 = call i32 @llvm.amdgcn.atomic.inc.i32.p0(ptr %ptr0, i32 42, i32 -1, i32 0, i1 true)
- ; CHECK: atomicrmw volatile uinc_wrap ptr addrspace(1) %ptr1, i32 43 syncscope("agent") seq_cst, align 4, !amdgpu.no.fine.grained.memory !0
+ ; CHECK: atomicrmw volatile uinc_wrap ptr addrspace(1) %ptr1, i32 43 syncscope("agent") seq_cst, align 4, !amdgpu.no.fine.grained.memory !1
%result1 = call i32 @llvm.amdgcn.atomic.inc.i32.p1(ptr addrspace(1) %ptr1, i32 43, i32 0, i32 0, i1 true)
- ; CHECK: atomicrmw uinc_wrap ptr addrspace(1) %ptr1, i32 43 syncscope("agent") seq_cst, align 4, !amdgpu.no.fine.grained.memory !0
+ ; CHECK: atomicrmw uinc_wrap ptr addrspace(1) %ptr1, i32 43 syncscope("agent") seq_cst, align 4, !amdgpu.no.fine.grained.memory !1
%result2 = call i32 @llvm.amdgcn.atomic.inc.i32.p1(ptr addrspace(1) %ptr1, i32 43, i32 1, i32 0, i1 false)
- ; CHECK: atomicrmw volatile uinc_wrap ptr addrspace(1) %ptr1, i32 43 syncscope("agent") monotonic, align 4, !amdgpu.no.fine.grained.memory !0
+ ; CHECK: atomicrmw volatile uinc_wrap ptr addrspace(1) %ptr1, i32 43 syncscope("agent") monotonic, align 4, !amdgpu.no.fine.grained.memory !1
%result3 = call i32 @llvm.amdgcn.atomic.inc.i32.p1(ptr addrspace(1) %ptr1, i32 43, i32 2, i32 0, i1 true)
- ; CHECK: atomicrmw uinc_wrap ptr addrspace(1) %ptr1, i32 43 syncscope("agent") seq_cst, align 4, !amdgpu.no.fine.grained.memory !0
+ ; CHECK: atomicrmw uinc_wrap ptr addrspace(1) %ptr1, i32 43 syncscope("agent") seq_cst, align 4, !amdgpu.no.fine.grained.memory !1
%result4 = call i32 @llvm.amdgcn.atomic.inc.i32.p1(ptr addrspace(1) %ptr1, i32 43, i32 3, i32 0, i1 false)
- ; CHECK: atomicrmw volatile udec_wrap ptr %ptr0, i32 42 syncscope("agent") seq_cst, align 4, !amdgpu.no.fine.grained.memory !0
+ ; CHECK: atomicrmw volatile udec_wrap ptr %ptr0, i32 42 syncscope("agent") seq_cst, align 4, !noalias.addrspace !0, !amdgpu.no.fine.grained.memory !1{{$}}
%result5 = call i32 @llvm.amdgcn.atomic.dec.i32.p0(ptr %ptr0, i32 42, i32 0, i32 4, i1 true)
- ; CHECK: atomicrmw udec_wrap ptr %ptr0, i32 42 syncscope("agent") seq_cst, align 4, !amdgpu.no.fine.grained.memory !0
+ ; CHECK: atomicrmw udec_wrap ptr %ptr0, i32 42 syncscope("agent") seq_cst, align 4, !noalias.addrspace !0, !amdgpu.no.fine.grained.memory !1{{$}}
%result6 = call i32 @llvm.amdgcn.atomic.dec.i32.p0(ptr %ptr0, i32 42, i32 0, i32 5, i1 false)
- ; CHECK: atomicrmw volatile udec_wrap ptr %ptr0, i32 42 syncscope("agent") seq_cst, align 4, !amdgpu.no.fine.grained.memory !0
+ ; CHECK: atomicrmw volatile udec_wrap ptr %ptr0, i32 42 syncscope("agent") seq_cst, align 4, !noalias.addrspace !0, !amdgpu.no.fine.grained.memory !1{{$}}
%result7 = call i32 @llvm.amdgcn.atomic.dec.i32.p0(ptr %ptr0, i32 42, i32 0, i32 6, i1 true)
- ; CHECK: atomicrmw udec_wrap ptr %ptr0, i32 42 syncscope("agent") seq_cst, align 4, !amdgpu.no.fine.grained.memory !0
+ ; CHECK: atomicrmw udec_wrap ptr %ptr0, i32 42 syncscope("agent") seq_cst, align 4, !noalias.addrspace !0, !amdgpu.no.fine.grained.memory !1{{$}}
%result8 = call i32 @llvm.amdgcn.atomic.dec.i32.p0(ptr %ptr0, i32 42, i32 0, i32 7, i1 false)
- ; CHECK:= atomicrmw volatile udec_wrap ptr %ptr0, i32 42 syncscope("agent") seq_cst, align 4, !amdgpu.no.fine.grained.memory !0
+ ; CHECK:= atomicrmw volatile udec_wrap ptr %ptr0, i32 42 syncscope("agent") seq_cst, align 4, !noalias.addrspace !0, !amdgpu.no.fine.grained.memory !1{{$}}
%result9 = call i32 @llvm.amdgcn.atomic.dec.i32.p0(ptr %ptr0, i32 42, i32 0, i32 8, i1 true)
- ; CHECK:= atomicrmw volatile udec_wrap ptr addrspace(1) %ptr1, i32 43 syncscope("agent") seq_cst, align 4, !amdgpu.no.fine.grained.memory !0
+ ; CHECK:= atomicrmw volatile udec_wrap ptr addrspace(1) %ptr1, i32 43 syncscope("agent") seq_cst, align 4, !amdgpu.no.fine.grained.memory !1
%result10 = call i32 @llvm.amdgcn.atomic.dec.i32.p1(ptr addrspace(1) %ptr1, i32 43, i32 3, i32 0, i1 true)
ret void
}
define void @immarg_violations(ptr %ptr0, i32 %val32, i1 %val1) {
- ; CHECK: atomicrmw udec_wrap ptr %ptr0, i32 42 syncscope("agent") seq_cst, align 4, !amdgpu.no.fine.grained.memory !0
+ ; CHECK: atomicrmw udec_wrap ptr %ptr0, i32 42 syncscope("agent") seq_cst, align 4, !noalias.addrspace !0, !amdgpu.no.fine.grained.memory !1{{$}}
%result0 = call i32 @llvm.amdgcn.atomic.dec.i32.p0(ptr %ptr0, i32 42, i32 %val32, i32 0, i1 false)
-; CHECK: atomicrmw udec_wrap ptr %ptr0, i32 42 syncscope("agent") monotonic, align 4, !amdgpu.no.fine.grained.memory !0
+; CHECK: atomicrmw udec_wrap ptr %ptr0, i32 42 syncscope("agent") monotonic, align 4, !noalias.addrspace !0, !amdgpu.no.fine.grained.memory !1{{$}}
%result1 = call i32 @llvm.amdgcn.atomic.dec.i32.p0(ptr %ptr0, i32 42, i32 2, i32 %val32, i1 false)
- ; CHECK: atomicrmw volatile udec_wrap ptr %ptr0, i32 42 syncscope("agent") monotonic, align 4, !amdgpu.no.fine.grained.memory !0
+ ; CHECK: atomicrmw volatile udec_wrap ptr %ptr0, i32 42 syncscope("agent") monotonic, align 4, !noalias.addrspace !0, !amdgpu.no.fine.grained.memory !1{{$}}
%result2 = call i32 @llvm.amdgcn.atomic.dec.i32.p0(ptr %ptr0, i32 42, i32 2, i32 0, i1 %val1)
ret void
}
@@ -300,4 +300,7 @@ define float @upgrade_amdgcn_ds_fmax_f32_no_suffix(ptr addrspace(3) %ptr, float
ret float %result0
}
+; CHECK: !0 = !{i32 5, i32 6}
+; CHECK: !1 = !{}
+
attributes #0 = { argmemonly nounwind willreturn }
More information about the llvm-branch-commits
mailing list