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27bd9b361b
The code was actually correct. Sorry for the confusion. I have expanded the comment saying why the analysis is valid to avoid me misunderstaning it again in the future. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210052 91177308-0d34-0410-b5e6-96231b3b80d8
17 lines
443 B
LLVM
17 lines
443 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 nsw 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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