| ; RUN: opt -S -mtriple=amdgcn-unknown-amdhsa -amdgpu-promote-alloca %s | FileCheck -check-prefix=OPT %s |
| |
| target datalayout = "e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5" |
| |
| declare void @llvm.lifetime.start.p5i8(i64, i8 addrspace(5)* nocapture) #0 |
| declare void @llvm.lifetime.end.p5i8(i64, i8 addrspace(5)* nocapture) #0 |
| |
| ; OPT-LABEL: @use_lifetime_promotable_lds( |
| ; OPT-NOT: alloca i32 |
| ; OPT-NOT: llvm.lifetime |
| ; OPT: store i32 %tmp3, i32 addrspace(3)* |
| define amdgpu_kernel void @use_lifetime_promotable_lds(i32 addrspace(1)* %arg) #2 { |
| bb: |
| %tmp = alloca i32, align 4, addrspace(5) |
| %tmp1 = bitcast i32 addrspace(5)* %tmp to i8 addrspace(5)* |
| call void @llvm.lifetime.start.p5i8(i64 4, i8 addrspace(5)* %tmp1) |
| %tmp2 = getelementptr inbounds i32, i32 addrspace(1)* %arg, i64 1 |
| %tmp3 = load i32, i32 addrspace(1)* %tmp2 |
| store i32 %tmp3, i32 addrspace(5)* %tmp |
| call void @llvm.lifetime.end.p5i8(i64 4, i8 addrspace(5)* %tmp1) |
| 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.p5i8(i64 1, i8 addrspace(5)* %alloca) |
| ret void |
| } |
| |
| attributes #0 = { argmemonly nounwind } |
| attributes #1 = { nounwind readnone } |
| attributes #2 = { nounwind } |