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ed0ab9dc76
This patch adds a function attribute, nofree, to indicate that a function does not, directly or indirectly, call a memory-deallocation function (e.g., free, C++'s operator delete). Reviewers: jdoerfert Differential Revision: https://reviews.llvm.org/D49165 llvm-svn: 365336
34 lines
1.8 KiB
LLVM
34 lines
1.8 KiB
LLVM
; RUN: opt -mtriple=amdgcn--amdhsa -S -O3 -enable-unsafe-fp-math %s | FileCheck -check-prefix=GCN -check-prefix=UNSAFE %s
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; RUN: opt -mtriple=amdgcn--amdhsa -S -O3 -enable-no-nans-fp-math %s | FileCheck -check-prefix=GCN -check-prefix=NONANS %s
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; RUN: opt -mtriple=amdgcn--amdhsa -S -O3 -enable-no-infs-fp-math %s | FileCheck -check-prefix=GCN -check-prefix=NOINFS %s
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; GCN: define float @foo(float %x) local_unnamed_addr #0 {
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; GCN: define amdgpu_kernel void @caller(float addrspace(1)* nocapture %p) local_unnamed_addr #1 {
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; GCN: %mul.i = fmul float %load, 1.500000e+01
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; UNSAFE: attributes #0 = { norecurse nounwind readnone "less-precise-fpmad"="true" "no-infs-fp-math"="true" "no-nans-fp-math"="true" "unsafe-fp-math"="true" }
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; UNSAFE: attributes #1 = { nofree norecurse nounwind "less-precise-fpmad"="true" "no-infs-fp-math"="true" "no-nans-fp-math"="true" "unsafe-fp-math"="true" }
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; NOINFS: attributes #0 = { norecurse nounwind readnone "no-infs-fp-math"="true" }
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; NOINFS: attributes #1 = { nofree norecurse nounwind "less-precise-fpmad"="false" "no-infs-fp-math"="true" "no-nans-fp-math"="false" "unsafe-fp-math"="false" }
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; NONANS: attributes #0 = { norecurse nounwind readnone "no-nans-fp-math"="true" }
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; NONANS: attributes #1 = { nofree norecurse nounwind "less-precise-fpmad"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="true" "unsafe-fp-math"="false" }
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define float @foo(float %x) #0 {
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entry:
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%mul = fmul float %x, 1.500000e+01
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ret float %mul
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}
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define amdgpu_kernel void @caller(float addrspace(1)* %p) #1 {
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entry:
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%load = load float, float addrspace(1)* %p, align 4
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%call = call fast float @foo(float %load) #0
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store float %call, float addrspace(1)* %p, align 4
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ret void
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}
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attributes #0 = { nounwind }
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attributes #1 = { nounwind "less-precise-fpmad"="true" "no-infs-fp-math"="true" "no-nans-fp-math"="true" "unsafe-fp-math"="true" }
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