[PATCH] D80077: [LiveVariables] Don't set undef reg PHI used as live for FromMBB

[Zhang Kang via Phabricator via llvm-commits]

ZhangKang updated this revision to Diff 264940.
ZhangKang added a comment.

Add a test case.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D80077/new/

https://reviews.llvm.org/D80077

Files:
  llvm/lib/CodeGen/LiveVariables.cpp
  llvm/test/CodeGen/AArch64/PHIElimination-crash.mir

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