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43 lines
1.1 KiB
LLVM
43 lines
1.1 KiB
LLVM
; RUN: opt -S -instcombine < %s | FileCheck %s
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define i1 @test1(float %x, float %y) nounwind {
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%ext1 = fpext float %x to double
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%ext2 = fpext float %y to double
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%cmp = fcmp ogt double %ext1, %ext2
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ret i1 %cmp
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; CHECK: @test1
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; CHECK-NEXT: fcmp ogt float %x, %y
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}
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define i1 @test2(float %a) nounwind {
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%ext = fpext float %a to double
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%cmp = fcmp ogt double %ext, 1.000000e+00
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ret i1 %cmp
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; CHECK: @test2
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; CHECK-NEXT: fcmp ogt float %a, 1.0
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}
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define i1 @test3(float %a) nounwind {
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%ext = fpext float %a to double
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%cmp = fcmp ogt double %ext, 0x3FF0000000000001 ; more precision than float.
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ret i1 %cmp
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; CHECK: @test3
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; CHECK-NEXT: fpext float %a to double
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}
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define i1 @test4(float %a) nounwind {
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%ext = fpext float %a to double
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%cmp = fcmp ogt double %ext, 0x36A0000000000000 ; denormal in float.
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ret i1 %cmp
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; CHECK: @test4
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; CHECK-NEXT: fpext float %a to double
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}
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define i1 @test5(float %a) nounwind {
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%neg = fsub float -0.000000e+00, %a
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%cmp = fcmp ogt float %neg, 1.000000e+00
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ret i1 %cmp
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; CHECK: @test5
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; CHECK-NEXT: fcmp olt float %a, -1.0
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}
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