forked from OSchip/llvm-project
76 lines
2.4 KiB
LLVM
76 lines
2.4 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -instcombine -S < %s | FileCheck %s
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declare double @llvm.fabs.f64(double)
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declare float @llvm.fabs.f32(float)
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declare void @use(double)
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declare double @llvm.copysign.f64(double, double)
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declare float @llvm.copysign.f32(float, float)
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define double @fabs_copysign(double %x) {
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; CHECK-LABEL: @fabs_copysign(
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; CHECK-NEXT: [[TMP1:%.*]] = call nnan ninf double @llvm.copysign.f64(double 1.000000e+00, double [[X:%.*]])
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; CHECK-NEXT: ret double [[TMP1]]
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;
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%f = tail call double @llvm.fabs.f64(double %x)
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%div = fdiv nnan ninf double %x, %f
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ret double %div
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}
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define float @fabs_copysignf(float %x) {
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; CHECK-LABEL: @fabs_copysignf(
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; CHECK-NEXT: [[TMP1:%.*]] = call nnan ninf float @llvm.copysign.f32(float 1.000000e+00, float [[X:%.*]])
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; CHECK-NEXT: ret float [[TMP1]]
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;
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%f = tail call float @llvm.fabs.f32(float %x)
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%div = fdiv nnan ninf float %x, %f
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ret float %div
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}
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define double @fabs_copysign_use(double %x) {
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; CHECK-LABEL: @fabs_copysign_use(
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; CHECK-NEXT: [[TMP1:%.*]] = call nnan ninf double @llvm.copysign.f64(double 1.000000e+00, double [[X:%.*]])
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; CHECK-NEXT: ret double [[TMP1]]
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;
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%f = tail call double @llvm.fabs.f64(double %x)
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%div = fdiv nnan ninf double %x, %f
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ret double %div
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}
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; Negative tests
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define double @fabs_copysign_mismatch(double %x, double %y) {
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; CHECK-LABEL: @fabs_copysign_mismatch(
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; CHECK-NEXT: [[F:%.*]] = tail call double @llvm.fabs.f64(double [[Y:%.*]])
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; CHECK-NEXT: [[DIV:%.*]] = fdiv double [[X:%.*]], [[F]]
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; CHECK-NEXT: ret double [[DIV]]
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;
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%f = tail call double @llvm.fabs.f64(double %y)
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%div = fdiv double %x, %f
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ret double %div
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}
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define double @fabs_copysign_no_nnan(double %x) {
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; CHECK-LABEL: @fabs_copysign_no_nnan(
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; CHECK-NEXT: [[F:%.*]] = tail call double @llvm.fabs.f64(double [[X:%.*]])
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; CHECK-NEXT: [[DIV:%.*]] = fdiv ninf double [[X]], [[F]]
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; CHECK-NEXT: ret double [[DIV]]
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;
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%f = tail call double @llvm.fabs.f64(double %x)
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%div = fdiv ninf double %x, %f
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ret double %div
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}
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define double @fabs_copysign_no_ninf(double %x) {
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; CHECK-LABEL: @fabs_copysign_no_ninf(
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; CHECK-NEXT: [[F:%.*]] = tail call double @llvm.fabs.f64(double [[X:%.*]])
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; CHECK-NEXT: [[DIV:%.*]] = fdiv nnan double [[X]], [[F]]
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; CHECK-NEXT: ret double [[DIV]]
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;
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%f = tail call double @llvm.fabs.f64(double %x)
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%div = fdiv nnan double %x, %f
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ret double %div
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}
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