forked from OSchip/llvm-project
30 lines
786 B
LLVM
30 lines
786 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instcombine -S | FileCheck %s
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; PR4374
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define float @test1(float %a, float %b) nounwind {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: [[T1:%.*]] = fsub float [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[T2:%.*]] = fsub float -0.000000e+00, [[T1]]
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; CHECK-NEXT: ret float [[T2]]
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;
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%t1 = fsub float %a, %b
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%t2 = fsub float -0.000000e+00, %t1
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ret float %t2
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}
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; <rdar://problem/7530098>
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define double @test2(double %x, double %y) nounwind {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: [[T1:%.*]] = fadd double [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[T2:%.*]] = fsub double [[X]], [[T1]]
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; CHECK-NEXT: ret double [[T2]]
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;
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%t1 = fadd double %x, %y
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%t2 = fsub double %x, %t1
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ret double %t2
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}
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