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| author | Sanjay Patel <spatel@rotateright.com> | 2016-01-12 19:06:35 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2016-01-12 19:06:35 +0000 |
| commit | 53ba88dbb042132bbaf7e5ca6ccc2d5051272581 (patch) | |
| tree | 70b2762ffa49886f774ef53b8d8902e262cf39fb /llvm/test/Transforms | |
| parent | 87b0fe075ea2573a0009ceef8cc84f05f7b2f782 (diff) | |
| download | bcm5719-llvm-53ba88dbb042132bbaf7e5ca6ccc2d5051272581.tar.gz bcm5719-llvm-53ba88dbb042132bbaf7e5ca6ccc2d5051272581.zip | |
[LibCallSimplifier] use instruction-level fast-math-flags to transform pow(x, 0.5) calls
Also, propagate the FMF to the newly created sqrt() call.
llvm-svn: 257503
Diffstat (limited to 'llvm/test/Transforms')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/pow-sqrt.ll | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/llvm/test/Transforms/InstCombine/pow-sqrt.ll b/llvm/test/Transforms/InstCombine/pow-sqrt.ll index 8fc74e4a002..1e6166c5f11 100644 --- a/llvm/test/Transforms/InstCombine/pow-sqrt.ll +++ b/llvm/test/Transforms/InstCombine/pow-sqrt.ll @@ -1,15 +1,13 @@ ; RUN: opt < %s -instcombine -S | FileCheck %s -define double @mypow(double %x) #0 { -entry: - %pow = call double @llvm.pow.f64(double %x, double 5.000000e-01) +define double @pow_half(double %x) { + %pow = call fast double @llvm.pow.f64(double %x, double 5.000000e-01) ret double %pow } -; CHECK-LABEL: define double @mypow( -; CHECK: %sqrt = call double @sqrt(double %x) #1 -; CHECK: ret double %sqrt -; CHECK: } +; CHECK-LABEL: define double @pow_half( +; CHECK-NEXT: %sqrt = call fast double @sqrt(double %x) +; CHECK-NEXT: ret double %sqrt declare double @llvm.pow.f64(double, double) -attributes #0 = { "unsafe-fp-math"="true" } + |
