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Summary: After a single predecessor is merged into a basic block, we need to invalidate the LVI information for the new merged block, when LVI is not provably true for all of instructions in the new block. The test cases added show the correct LVI information using the LVI printer pass. Reviewers: reames, dberlin, davide, sanjoy Reviewed by: dberlin, davide Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D34108 llvm-svn: 305699
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