forked from OSchip/llvm-project
50 lines
1.5 KiB
LLVM
50 lines
1.5 KiB
LLVM
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; RUN: opt -S -instcombine < %s | FileCheck %s
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declare float @llvm.copysign.f32(float, float) #0
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declare double @llvm.copysign.f64(double, double) #0
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; CHECK-LABEL: @constant_fold_copysign_f32_01
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; CHECK-NEXT: ret float -1.000000e+00
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define float @constant_fold_copysign_f32_01() #0 {
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%x = call float @llvm.copysign.f32(float 1.0, float -2.0) #0
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ret float %x
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}
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; CHECK-LABEL: @constant_fold_copysign_f32_02
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; CHECK-NEXT: ret float 2.000000e+00
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define float @constant_fold_copysign_f32_02() #0 {
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%x = call float @llvm.copysign.f32(float -2.0, float 1.0) #0
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ret float %x
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}
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; CHECK-LABEL: @constant_fold_copysign_f32_03
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; CHECK-NEXT: ret float -2.000000e+00
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define float @constant_fold_copysign_f32_03() #0 {
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%x = call float @llvm.copysign.f32(float -2.0, float -1.0) #0
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ret float %x
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}
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; CHECK-LABEL: @constant_fold_copysign_f64_01
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; CHECK-NEXT: ret double -1.000000e+00
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define double @constant_fold_copysign_f64_01() #0 {
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%x = call double @llvm.copysign.f64(double 1.0, double -2.0) #0
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ret double %x
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}
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; CHECK-LABEL: @constant_fold_copysign_f64_02
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; CHECK-NEXT: ret double 1.000000e+00
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define double @constant_fold_copysign_f64_02() #0 {
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%x = call double @llvm.copysign.f64(double -1.0, double 2.0) #0
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ret double %x
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}
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; CHECK-LABEL: @constant_fold_copysign_f64_03
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; CHECK-NEXT: ret double -1.000000e+00
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define double @constant_fold_copysign_f64_03() #0 {
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%x = call double @llvm.copysign.f64(double -1.0, double -2.0) #0
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ret double %x
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}
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attributes #0 = { nounwind readnone }
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