derek.holloway
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36 lines
1.3 KiB
LLVM
36 lines
1.3 KiB
LLVM
; RUN: opt -S -mtriple=amdgcn-unknown-amdhsa -passes=amdgpu-promote-alloca %s | FileCheck -check-prefix=OPT %s
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declare void @llvm.lifetime.start.p5(i64, ptr addrspace(5) nocapture) #0
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declare void @llvm.lifetime.end.p5(i64, ptr 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, ptr addrspace(3)
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define amdgpu_kernel void @use_lifetime_promotable_lds(ptr addrspace(1) %arg) #2 {
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bb:
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%tmp = alloca i32, align 4, addrspace(5)
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call void @llvm.lifetime.start.p5(i64 4, ptr addrspace(5) %tmp)
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%tmp2 = getelementptr inbounds i32, ptr addrspace(1) %arg, i64 1
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%tmp3 = load i32, ptr addrspace(1) %tmp2
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store i32 %tmp3, ptr addrspace(5) %tmp
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call void @llvm.lifetime.end.p5(i64 4, ptr addrspace(5) %tmp)
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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.p5(i64 1, ptr 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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