1; RUN: opt -S -mtriple=amdgcn-unknown-amdhsa -amdgpu-promote-alloca %s | FileCheck -check-prefix=OPT %s 2 3target 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" 4 5declare void @llvm.lifetime.start.p5i8(i64, i8 addrspace(5)* nocapture) #0 6declare void @llvm.lifetime.end.p5i8(i64, i8 addrspace(5)* nocapture) #0 7 8; OPT-LABEL: @use_lifetime_promotable_lds( 9; OPT-NOT: alloca i32 10; OPT-NOT: llvm.lifetime 11; OPT: store i32 %tmp3, i32 addrspace(3)* 12define amdgpu_kernel void @use_lifetime_promotable_lds(i32 addrspace(1)* %arg) #2 { 13bb: 14 %tmp = alloca i32, align 4, addrspace(5) 15 %tmp1 = bitcast i32 addrspace(5)* %tmp to i8 addrspace(5)* 16 call void @llvm.lifetime.start.p5i8(i64 4, i8 addrspace(5)* %tmp1) 17 %tmp2 = getelementptr inbounds i32, i32 addrspace(1)* %arg, i64 1 18 %tmp3 = load i32, i32 addrspace(1)* %tmp2 19 store i32 %tmp3, i32 addrspace(5)* %tmp 20 call void @llvm.lifetime.end.p5i8(i64 4, i8 addrspace(5)* %tmp1) 21 ret void 22} 23 24; After handling the alloca, the lifetime was erased. This was the 25; next iterator to be checked as an alloca, crashing. 26 27; OPT-LABEL: @iterator_erased_lifetime( 28; OPT-NOT: alloca i8 29define amdgpu_kernel void @iterator_erased_lifetime() { 30entry: 31 %alloca = alloca i8, align 1, addrspace(5) 32 call void @llvm.lifetime.start.p5i8(i64 1, i8 addrspace(5)* %alloca) 33 ret void 34} 35 36attributes #0 = { argmemonly nounwind } 37attributes #1 = { nounwind readnone } 38attributes #2 = { nounwind } 39