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70957b9c55
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203198 91177308-0d34-0410-b5e6-96231b3b80d8
91 lines
2.5 KiB
LLVM
91 lines
2.5 KiB
LLVM
; RUN: opt -S -instcombine < %s | FileCheck %s
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declare float @llvm.round.f32(float) #0
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declare double @llvm.round.f64(double) #0
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; CHECK-LABEL: @constant_fold_round_f32_01
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; CHECK-NEXT: ret float 1.000000e+00
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define float @constant_fold_round_f32_01() #0 {
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%x = call float @llvm.round.f32(float 1.25) #0
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ret float %x
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}
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; CHECK-LABEL: @constant_fold_round_f32_02
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; CHECK-NEXT: ret float -1.000000e+00
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define float @constant_fold_round_f32_02() #0 {
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%x = call float @llvm.round.f32(float -1.25) #0
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ret float %x
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}
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; CHECK-LABEL: @constant_fold_round_f32_03
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; CHECK-NEXT: ret float 2.000000e+00
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define float @constant_fold_round_f32_03() #0 {
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%x = call float @llvm.round.f32(float 1.5) #0
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ret float %x
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}
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; CHECK-LABEL: @constant_fold_round_f32_04
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; CHECK-NEXT: ret float -2.000000e+00
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define float @constant_fold_round_f32_04() #0 {
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%x = call float @llvm.round.f32(float -1.5) #0
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ret float %x
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}
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; CHECK-LABEL: @constant_fold_round_f32_05
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; CHECK-NEXT: ret float 3.000000e+00
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define float @constant_fold_round_f32_05() #0 {
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%x = call float @llvm.round.f32(float 2.75) #0
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ret float %x
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}
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; CHECK-LABEL: @constant_fold_round_f32_06
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; CHECK-NEXT: ret float -3.000000e+00
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define float @constant_fold_round_f32_06() #0 {
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%x = call float @llvm.round.f32(float -2.75) #0
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ret float %x
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}
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; CHECK-LABEL: @constant_fold_round_f64_01
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; CHECK-NEXT: ret double 1.000000e+00
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define double @constant_fold_round_f64_01() #0 {
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%x = call double @llvm.round.f64(double 1.3) #0
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ret double %x
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}
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; CHECK-LABEL: @constant_fold_round_f64_02
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; CHECK-NEXT: ret double -1.000000e+00
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define double @constant_fold_round_f64_02() #0 {
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%x = call double @llvm.round.f64(double -1.3) #0
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ret double %x
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}
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; CHECK-LABEL: @constant_fold_round_f64_03
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; CHECK-NEXT: ret double 2.000000e+00
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define double @constant_fold_round_f64_03() #0 {
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%x = call double @llvm.round.f64(double 1.5) #0
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ret double %x
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}
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; CHECK-LABEL: @constant_fold_round_f64_04
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; CHECK-NEXT: ret double -2.000000e+00
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define double @constant_fold_round_f64_04() #0 {
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%x = call double @llvm.round.f64(double -1.5) #0
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ret double %x
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}
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; CHECK-LABEL: @constant_fold_round_f64_05
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; CHECK-NEXT: ret double 3.000000e+00
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define double @constant_fold_round_f64_05() #0 {
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%x = call double @llvm.round.f64(double 2.7) #0
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ret double %x
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}
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; CHECK-LABEL: @constant_fold_round_f64_06
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; CHECK-NEXT: ret double -3.000000e+00
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define double @constant_fold_round_f64_06() #0 {
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%x = call double @llvm.round.f64(double -2.7) #0
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ret double %x
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}
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attributes #0 = { nounwind readnone }
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