[PATCH] D82258: [RegisterCoalescer] Fix IMPLICIT_DEF init removal for a register on joining

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

It would help if 9d7bc0874cf20f44cd331c77f5a003b4c4b262bd had a test...

I'm somewhat suspicious, since I have seen cases where the implicit def is needed in cases where the full register is never fully covered. However, it's possible this is still a leftover from before DetectDeadLanes was added


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D82258/new/

https://reviews.llvm.org/D82258