[PATCH] D144319: [SimplifyCFG] Check if the return instruction causes undefined behavior

[DianQK via Phabricator via llvm-commits]

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Thank you for your review and answer. I have commit access. After https://reviews.llvm.org/B214570 succeeds, I will rebase the commit and run `ninja check-all` once locally to confirm it is correct.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D144319/new/

https://reviews.llvm.org/D144319