1; RUN: opt -S -mtriple=amdgcn-unknown-amdhsa -passes=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-p7:160:256:256:32-p8:128:128-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.p5(i64, ptr addrspace(5) nocapture) #0 6declare void @llvm.lifetime.end.p5(i64, ptr 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, ptr addrspace(3) 12define amdgpu_kernel void @use_lifetime_promotable_lds(ptr addrspace(1) %arg) #2 { 13bb: 14 %tmp = alloca i32, align 4, addrspace(5) 15 call void @llvm.lifetime.start.p5(i64 4, ptr addrspace(5) %tmp) 16 %tmp2 = getelementptr inbounds i32, ptr addrspace(1) %arg, i64 1 17 %tmp3 = load i32, ptr addrspace(1) %tmp2 18 store i32 %tmp3, ptr addrspace(5) %tmp 19 call void @llvm.lifetime.end.p5(i64 4, ptr addrspace(5) %tmp) 20 ret void 21} 22 23; After handling the alloca, the lifetime was erased. This was the 24; next iterator to be checked as an alloca, crashing. 25 26; OPT-LABEL: @iterator_erased_lifetime( 27; OPT-NOT: alloca i8 28define amdgpu_kernel void @iterator_erased_lifetime() { 29entry: 30 %alloca = alloca i8, align 1, addrspace(5) 31 call void @llvm.lifetime.start.p5(i64 1, ptr addrspace(5) %alloca) 32 ret void 33} 34 35attributes #0 = { argmemonly nounwind } 36attributes #1 = { nounwind readnone } 37attributes #2 = { nounwind } 38