Mercurial > hg > Members > tobaru > cbc > CbC_llvm
view test/CodeGen/X86/sqrt-fastmath.ll @ 33:e4204d083e25
LLVM 3.5
author | Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp> |
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date | Thu, 12 Dec 2013 14:32:10 +0900 |
parents | 95c75e76d11b |
children | 60c9769439b8 |
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; RUN: llc < %s -mcpu=core2 | FileCheck %s ; generated using "clang -S -O2 -ffast-math -emit-llvm sqrt.c" from ; #include <math.h> ; ; double fd(double d){ ; return sqrt(d); ; } ; ; float ff(float f){ ; return sqrtf(f); ; } ; ; long double fld(long double ld){ ; return sqrtl(ld); ; } ; ; Tests conversion of sqrt function calls into sqrt instructions when ; -ffast-math is in effect. ; ModuleID = 'sqrt.c' target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" target triple = "x86_64-unknown-linux-gnu" ; Function Attrs: nounwind readnone uwtable define double @fd(double %d) #0 { entry: ; CHECK: sqrtsd %call = tail call double @__sqrt_finite(double %d) #2 ret double %call } ; Function Attrs: nounwind readnone declare double @__sqrt_finite(double) #1 ; Function Attrs: nounwind readnone uwtable define float @ff(float %f) #0 { entry: ; CHECK: sqrtss %call = tail call float @__sqrtf_finite(float %f) #2 ret float %call } ; Function Attrs: nounwind readnone declare float @__sqrtf_finite(float) #1 ; Function Attrs: nounwind readnone uwtable define x86_fp80 @fld(x86_fp80 %ld) #0 { entry: ; CHECK: fsqrt %call = tail call x86_fp80 @__sqrtl_finite(x86_fp80 %ld) #2 ret x86_fp80 %call } ; Function Attrs: nounwind readnone declare x86_fp80 @__sqrtl_finite(x86_fp80) #1 attributes #0 = { nounwind readnone uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="true" "no-nans-fp-math"="true" "unsafe-fp-math"="true" "use-soft-float"="false" } attributes #1 = { nounwind readnone "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="true" "no-nans-fp-math"="true" "unsafe-fp-math"="true" "use-soft-float"="false" } attributes #2 = { nounwind readnone }