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68e7702970
This reverts commit r210029. It was not correctly handling cases where LHS and RHS had multiple but different sign bits. llvm-svn: 210048
17 lines
439 B
LLVM
17 lines
439 B
LLVM
; RUN: opt < %s -instcombine -S | FileCheck %s
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; rdar://11748024
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define i32 @a(i1 zeroext %x, i1 zeroext %y) {
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entry:
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; CHECK-LABEL: @a(
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; CHECK: [[TMP1:%.*]] = sext i1 %y to i32
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; CHECK: [[TMP2:%.*]] = select i1 %x, i32 2, i32 1
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; CHECK-NEXT: add i32 [[TMP2]], [[TMP1]]
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%conv = zext i1 %x to i32
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%conv3 = zext i1 %y to i32
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%conv3.neg = sub i32 0, %conv3
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%sub = add i32 %conv, 1
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%add = add i32 %sub, %conv3.neg
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ret i32 %add
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}
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