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* [MemorySSA] Add additional verification for phis.Alina Sbirlea2019-07-311-0/+31
Summary: Verify that the incoming defs into phis are the last defs from the respective incoming blocks. When moving blocks, insertDef must RenameUses. Adding this verification makes GVNHoist tests fail that uncovered this issue. Reviewers: george.burgess.iv Subscribers: jlebar, Prazek, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D63147 llvm-svn: 367451
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