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4990b257dd
- Renumber fcmp predicates to match their icmp counterparts. - Try swapping operands to expose more optimization opportunities. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57513 91177308-0d34-0410-b5e6-96231b3b80d8
35 lines
966 B
LLVM
35 lines
966 B
LLVM
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep fcmp | count 3
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; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep ret | grep 0
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define zeroext i8 @t1(float %x, float %y) nounwind {
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%a = fcmp ueq float %x, %y
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%b = fcmp ord float %x, %y
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%c = and 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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define zeroext i8 @t2(float %x, float %y) nounwind {
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%a = fcmp olt float %x, %y
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%b = fcmp ord float %x, %y
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%c = and 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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define zeroext i8 @t3(float %x, float %y) nounwind {
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%a = fcmp oge float %x, %y
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%b = fcmp uno float %x, %y
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%c = and 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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define zeroext i8 @t4(float %x, float %y) nounwind {
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%a = fcmp one float %y, %x
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%b = fcmp ord float %x, %y
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%c = and 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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