| ; RUN: opt -S -mtriple=amdgcn-unknown-amdhsa -passes=amdgpu-promote-alloca %s | FileCheck -check-prefix=OPT %s |
| |
| declare void @llvm.lifetime.start.p5(i64, ptr addrspace(5) nocapture) #0 |
| declare void @llvm.lifetime.end.p5(i64, ptr addrspace(5) nocapture) #0 |
| |
| ; OPT-LABEL: @use_lifetime_promotable_lds( |
| ; OPT-NOT: alloca i32 |
| ; OPT-NOT: llvm.lifetime |
| ; OPT: store i32 %tmp3, ptr addrspace(3) |
| define amdgpu_kernel void @use_lifetime_promotable_lds(ptr addrspace(1) %arg) #2 { |
| bb: |
| %tmp = alloca i32, align 4, addrspace(5) |
| call void @llvm.lifetime.start.p5(i64 4, ptr addrspace(5) %tmp) |
| %tmp2 = getelementptr inbounds i32, ptr addrspace(1) %arg, i64 1 |
| %tmp3 = load i32, ptr addrspace(1) %tmp2 |
| store i32 %tmp3, ptr addrspace(5) %tmp |
| call void @llvm.lifetime.end.p5(i64 4, ptr addrspace(5) %tmp) |
| ret void |
| } |
| |
| ; After handling the alloca, the lifetime was erased. This was the |
| ; next iterator to be checked as an alloca, crashing. |
| |
| ; OPT-LABEL: @iterator_erased_lifetime( |
| ; OPT-NOT: alloca i8 |
| define amdgpu_kernel void @iterator_erased_lifetime() { |
| entry: |
| %alloca = alloca i8, align 1, addrspace(5) |
| call void @llvm.lifetime.start.p5(i64 1, ptr addrspace(5) %alloca) |
| ret void |
| } |
| |
| attributes #0 = { argmemonly nounwind } |
| attributes #1 = { nounwind readnone } |
| attributes #2 = { nounwind } |
