1 ; RUN: opt -S -instcombine < %s | FileCheck %s 2 3 declare float @llvm.copysign.f32(float, float) #0 4 declare double @llvm.copysign.f64(double, double) #0 5 6 ; CHECK-LABEL: @constant_fold_copysign_f32_01 7 ; CHECK-NEXT: ret float -1.000000e+00 8 define float @constant_fold_copysign_f32_01() #0 { 9 %x = call float @llvm.copysign.f32(float 1.0, float -2.0) #0 10 ret float %x 11 } 12 13 ; CHECK-LABEL: @constant_fold_copysign_f32_02 14 ; CHECK-NEXT: ret float 2.000000e+00 15 define float @constant_fold_copysign_f32_02() #0 { 16 %x = call float @llvm.copysign.f32(float -2.0, float 1.0) #0 17 ret float %x 18 } 19 20 ; CHECK-LABEL: @constant_fold_copysign_f32_03 21 ; CHECK-NEXT: ret float -2.000000e+00 22 define float @constant_fold_copysign_f32_03() #0 { 23 %x = call float @llvm.copysign.f32(float -2.0, float -1.0) #0 24 ret float %x 25 } 26 27 ; CHECK-LABEL: @constant_fold_copysign_f64_01 28 ; CHECK-NEXT: ret double -1.000000e+00 29 define double @constant_fold_copysign_f64_01() #0 { 30 %x = call double @llvm.copysign.f64(double 1.0, double -2.0) #0 31 ret double %x 32 } 33 34 ; CHECK-LABEL: @constant_fold_copysign_f64_02 35 ; CHECK-NEXT: ret double 1.000000e+00 36 define double @constant_fold_copysign_f64_02() #0 { 37 %x = call double @llvm.copysign.f64(double -1.0, double 2.0) #0 38 ret double %x 39 } 40 41 ; CHECK-LABEL: @constant_fold_copysign_f64_03 42 ; CHECK-NEXT: ret double -1.000000e+00 43 define double @constant_fold_copysign_f64_03() #0 { 44 %x = call double @llvm.copysign.f64(double -1.0, double -2.0) #0 45 ret double %x 46 } 47 48 49 attributes #0 = { nounwind readnone } 50
