diff options
Diffstat (limited to 'test/CodeGen/AMDGPU/promote-alloca-lifetime.ll')
| -rw-r--r-- | test/CodeGen/AMDGPU/promote-alloca-lifetime.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/test/CodeGen/AMDGPU/promote-alloca-lifetime.ll b/test/CodeGen/AMDGPU/promote-alloca-lifetime.ll new file mode 100644 index 000000000000..eeda19fa27ac --- /dev/null +++ b/test/CodeGen/AMDGPU/promote-alloca-lifetime.ll @@ -0,0 +1,24 @@ +; RUN: opt -S -mtriple=amdgcn-unknown-amdhsa -amdgpu-promote-alloca %s | FileCheck -check-prefix=OPT %s + +declare void @llvm.lifetime.start(i64, i8* nocapture) #0 +declare void @llvm.lifetime.end(i64, i8* nocapture) #0 + +; OPT-LABEL: @use_lifetime_promotable_lds( +; OPT-NOT: alloca i32 +; OPT-NOT: llvm.lifetime +; OPT: store i32 %tmp3, i32 addrspace(3)* +define void @use_lifetime_promotable_lds(i32 addrspace(1)* %arg) #2 { +bb: + %tmp = alloca i32, align 4 + %tmp1 = bitcast i32* %tmp to i8* + call void @llvm.lifetime.start(i64 4, i8* %tmp1) + %tmp2 = getelementptr inbounds i32, i32 addrspace(1)* %arg, i64 1 + %tmp3 = load i32, i32 addrspace(1)* %tmp2 + store i32 %tmp3, i32* %tmp + call void @llvm.lifetime.end(i64 4, i8* %tmp1) + ret void +} + +attributes #0 = { argmemonly nounwind } +attributes #1 = { nounwind readnone } +attributes #2 = { nounwind } |