forked from OSchip/llvm-project
57 lines
1.9 KiB
LLVM
57 lines
1.9 KiB
LLVM
; RUN: opt -S -instcombine < %s | FileCheck %s
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declare float @llvm.fma.f32(float, float, float) #0
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declare float @llvm.fmuladd.f32(float, float, float) #0
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declare <4 x float> @llvm.fma.v4f32(<4 x float>, <4 x float>, <4 x float>) #0
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declare double @llvm.fma.f64(double, double, double) #0
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declare double @llvm.fmuladd.f64(double, double, double) #0
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declare double @llvm.sqrt.f64(double) #0
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; CHECK-LABEL: @constant_fold_fma_f32
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; CHECK-NEXT: ret float 6.000000e+00
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define float @constant_fold_fma_f32() #0 {
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%x = call float @llvm.fma.f32(float 1.0, float 2.0, float 4.0) #0
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ret float %x
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}
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; CHECK-LABEL: @constant_fold_fma_v4f32
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; CHECK-NEXT: ret <4 x float> <float 1.200000e+01, float 1.400000e+01, float 1.600000e+01, float 1.800000e+01>
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define <4 x float> @constant_fold_fma_v4f32() #0 {
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%x = call <4 x float> @llvm.fma.v4f32(<4 x float> <float 1.0, float 2.0, float 3.0, float 4.0>, <4 x float> <float 2.0, float 2.0, float 2.0, float 2.0>, <4 x float> <float 10.0, float 10.0, float 10.0, float 10.0>)
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ret <4 x float> %x
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}
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; CHECK-LABEL: @constant_fold_fmuladd_f32
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; CHECK-NEXT: ret float 6.000000e+00
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define float @constant_fold_fmuladd_f32() #0 {
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%x = call float @llvm.fmuladd.f32(float 1.0, float 2.0, float 4.0) #0
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ret float %x
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}
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; CHECK-LABEL: @constant_fold_fma_f64
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; CHECK-NEXT: ret double 6.000000e+00
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define double @constant_fold_fma_f64() #0 {
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%x = call double @llvm.fma.f64(double 1.0, double 2.0, double 4.0) #0
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ret double %x
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}
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; CHECK-LABEL: @constant_fold_fmuladd_f64
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; CHECK-NEXT: ret double 6.000000e+00
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define double @constant_fold_fmuladd_f64() #0 {
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%x = call double @llvm.fmuladd.f64(double 1.0, double 2.0, double 4.0) #0
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ret double %x
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}
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; The sqrt intrinsic is undefined for negative inputs besides -0.0.
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; CHECK-LABEL: @bad_sqrt
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; CHECK-NEXT: ret double undef
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define double @bad_sqrt() {
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%x = call double @llvm.sqrt.f64(double -2.000000e+00)
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ret double %x
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}
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attributes #0 = { nounwind readnone }
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