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

[Bjorn Pettersson via Phabricator via llvm-commits]

bjope added a comment.

Can you add a test case for this? I guess it wouldn't be too hard to create a reduced mir test case running "-run-pass livevars -run-pass phi-node-elimination" and then the machine verifier (either by using -run-pass or by using "-verify-machineinstrs -verify-each-machine-pass").


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D80077/new/

https://reviews.llvm.org/D80077