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90c42ddc62
LoopRotate wanted to avoid live range interference by looking at the uses of a Value in the loop latch and seeing if any lied outside of the loop. We would wrongly perform this operation on Constants. This fixes PR22337. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227171 91177308-0d34-0410-b5e6-96231b3b80d8
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