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8b431a9469
We have a single library build without relaxation options. When inlined library functions remove fast math attributes from the functions they are integrated into. This patch sets relaxation attributes on the functions after linking provided corresponding relaxation options are given. Math instructions inside the inlined functions remain to have no fast flags, but inlining does not prevent fast math transformations of a surrounding caller code anymore. Differential Revision: https://reviews.llvm.org/D38325 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@314568 91177308-0d34-0410-b5e6-96231b3b80d8
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 = { 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 = { 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 = { 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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