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39 lines
1.5 KiB
LLVM
39 lines
1.5 KiB
LLVM
; RUN: opt -S -mtriple=amdgcn-unknown-amdhsa -amdgpu-promote-alloca %s | FileCheck -check-prefix=OPT %s
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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"
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declare void @llvm.lifetime.start.p5i8(i64, i8 addrspace(5)* nocapture) #0
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declare void @llvm.lifetime.end.p5i8(i64, i8 addrspace(5)* nocapture) #0
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; OPT-LABEL: @use_lifetime_promotable_lds(
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; OPT-NOT: alloca i32
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; OPT-NOT: llvm.lifetime
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; OPT: store i32 %tmp3, i32 addrspace(3)*
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define amdgpu_kernel void @use_lifetime_promotable_lds(i32 addrspace(1)* %arg) #2 {
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bb:
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%tmp = alloca i32, align 4, addrspace(5)
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%tmp1 = bitcast i32 addrspace(5)* %tmp to i8 addrspace(5)*
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call void @llvm.lifetime.start.p5i8(i64 4, i8 addrspace(5)* %tmp1)
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%tmp2 = getelementptr inbounds i32, i32 addrspace(1)* %arg, i64 1
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%tmp3 = load i32, i32 addrspace(1)* %tmp2
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store i32 %tmp3, i32 addrspace(5)* %tmp
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call void @llvm.lifetime.end.p5i8(i64 4, i8 addrspace(5)* %tmp1)
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ret void
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}
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; After handling the alloca, the lifetime was erased. This was the
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; next iterator to be checked as an alloca, crashing.
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; OPT-LABEL: @iterator_erased_lifetime(
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; OPT-NOT: alloca i8
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define amdgpu_kernel void @iterator_erased_lifetime() {
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entry:
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%alloca = alloca i8, align 1, addrspace(5)
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call void @llvm.lifetime.start.p5i8(i64 1, i8 addrspace(5)* %alloca)
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ret void
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}
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attributes #0 = { argmemonly nounwind }
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attributes #1 = { nounwind readnone }
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attributes #2 = { nounwind }
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