59 lines
1.7 KiB
LLVM
59 lines
1.7 KiB
LLVM
; RUN: opt < %s -instcombine -S | FileCheck %s
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; CHECK-LABEL: @t1(
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define zeroext i8 @t1(float %x, float %y) nounwind {
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%a = fcmp ueq float %x, %y ; <i1> [#uses=1]
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%b = fcmp uno float %x, %y ; <i1> [#uses=1]
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%c = or i1 %a, %b
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; CHECK-NOT: fcmp uno
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; CHECK: fcmp ueq
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%retval = zext i1 %c to i8
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ret i8 %retval
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}
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; CHECK-LABEL: @t2(
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define zeroext i8 @t2(float %x, float %y) nounwind {
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%a = fcmp olt float %x, %y ; <i1> [#uses=1]
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%b = fcmp oeq float %x, %y ; <i1> [#uses=1]
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; CHECK-NOT: fcmp olt
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; CHECK-NOT: fcmp oeq
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; CHECK: fcmp ole
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%c = or i1 %a, %b
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%retval = zext i1 %c to i8
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ret i8 %retval
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}
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; CHECK-LABEL: @t3(
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define zeroext i8 @t3(float %x, float %y) nounwind {
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%a = fcmp ult float %x, %y ; <i1> [#uses=1]
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%b = fcmp uge float %x, %y ; <i1> [#uses=1]
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%c = or i1 %a, %b
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%retval = zext i1 %c to i8
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; CHECK: ret i8 1
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ret i8 %retval
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}
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; CHECK-LABEL: @t4(
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define zeroext i8 @t4(float %x, float %y) nounwind {
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%a = fcmp ult float %x, %y ; <i1> [#uses=1]
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%b = fcmp ugt float %x, %y ; <i1> [#uses=1]
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%c = or i1 %a, %b
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; CHECK-NOT: fcmp ult
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; CHECK-NOT: fcmp ugt
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; CHECK: fcmp une
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%retval = zext i1 %c to i8
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ret i8 %retval
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}
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; CHECK-LABEL: @t5(
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define zeroext i8 @t5(float %x, float %y) nounwind {
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%a = fcmp olt float %x, %y ; <i1> [#uses=1]
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%b = fcmp oge float %x, %y ; <i1> [#uses=1]
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%c = or i1 %a, %b
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; CHECK-NOT: fcmp olt
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; CHECK-NOT: fcmp oge
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; CHECK: fcmp ord
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%retval = zext i1 %c to i8
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ret i8 %retval
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}
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