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3b3c47e0cc
Expanding the folding of `nearbyint()`, `rint()` and `trunc()` to library functions, in addition to the current support for intrinsics. Differential revision: https://reviews.llvm.org/D67468 llvm-svn: 371774
106 lines
2.6 KiB
LLVM
106 lines
2.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -early-cse < %s | FileCheck %s
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declare float @truncf(float) #0
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declare float @llvm.trunc.f32(float) #0
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declare double @trunc(double) #0
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declare double @llvm.trunc.f64(double) #0
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define float @constant_fold_trunc_f32_01() #0 {
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; CHECK-LABEL: @constant_fold_trunc_f32_01(
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; CHECK-NEXT: ret float 1.000000e+00
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;
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%x = call float @truncf(float 1.25) #0
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ret float %x
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}
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define float @constant_fold_trunc_f32_02() #0 {
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; CHECK-LABEL: @constant_fold_trunc_f32_02(
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; CHECK-NEXT: ret float -1.000000e+00
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;
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%x = call float @llvm.trunc.f32(float -1.25) #0
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ret float %x
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}
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define float @constant_fold_trunc_f32_03() #0 {
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; CHECK-LABEL: @constant_fold_trunc_f32_03(
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; CHECK-NEXT: ret float 1.000000e+00
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;
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%x = call float @truncf(float 1.5) #0
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ret float %x
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}
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define float @constant_fold_trunc_f32_04() #0 {
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; CHECK-LABEL: @constant_fold_trunc_f32_04(
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; CHECK-NEXT: ret float -1.000000e+00
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;
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%x = call float @llvm.trunc.f32(float -1.5) #0
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ret float %x
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}
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define float @constant_fold_trunc_f32_05() #0 {
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; CHECK-LABEL: @constant_fold_trunc_f32_05(
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; CHECK-NEXT: ret float 2.000000e+00
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;
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%x = call float @truncf(float 2.75) #0
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ret float %x
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}
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define float @constant_fold_trunc_f32_06() #0 {
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; CHECK-LABEL: @constant_fold_trunc_f32_06(
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; CHECK-NEXT: ret float -2.000000e+00
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;
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%x = call float @llvm.trunc.f32(float -2.75) #0
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ret float %x
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}
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define double @constant_fold_trunc_f64_01() #0 {
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; CHECK-LABEL: @constant_fold_trunc_f64_01(
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; CHECK-NEXT: ret double 1.000000e+00
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;
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%x = call double @trunc(double 1.3) #0
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ret double %x
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}
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define double @constant_fold_trunc_f64_02() #0 {
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; CHECK-LABEL: @constant_fold_trunc_f64_02(
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; CHECK-NEXT: ret double -1.000000e+00
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;
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%x = call double @llvm.trunc.f64(double -1.3) #0
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ret double %x
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}
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define double @constant_fold_trunc_f64_03() #0 {
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; CHECK-LABEL: @constant_fold_trunc_f64_03(
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; CHECK-NEXT: ret double 1.000000e+00
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;
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%x = call double @trunc(double 1.5) #0
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ret double %x
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}
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define double @constant_fold_trunc_f64_04() #0 {
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; CHECK-LABEL: @constant_fold_trunc_f64_04(
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; CHECK-NEXT: ret double -1.000000e+00
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;
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%x = call double @llvm.trunc.f64(double -1.5) #0
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ret double %x
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}
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define double @constant_fold_trunc_f64_05() #0 {
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; CHECK-LABEL: @constant_fold_trunc_f64_05(
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; CHECK-NEXT: ret double 2.000000e+00
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;
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%x = call double @trunc(double 2.7) #0
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ret double %x
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}
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define double @constant_fold_trunc_f64_06() #0 {
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; CHECK-LABEL: @constant_fold_trunc_f64_06(
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; CHECK-NEXT: ret double -2.000000e+00
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;
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%x = call double @llvm.trunc.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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