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1b344bc986
the predicate. Also, make this optz'n apply in more cases where it's safe to do so. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54876 91177308-0d34-0410-b5e6-96231b3b80d8
23 lines
402 B
LLVM
23 lines
402 B
LLVM
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep -v xor
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define i1 @test1(i8 %x, i8 %y) {
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%X = xor i8 %x, 128
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%Y = xor i8 %y, 128
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%tmp = icmp slt i8 %X, %Y
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ret i1 %tmp
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}
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define i1 @test2(i8 %x, i8 %y) {
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%X = xor i8 %x, 128
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%Y = xor i8 %y, 128
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%tmp = icmp ult i8 %X, %Y
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ret i1 %tmp
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}
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define i1 @test3(i8 %x) {
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%X = xor i8 %x, 128
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%tmp = icmp uge i8 %X, 15
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ret i1 %tmp
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}
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