[PATCH] D134343: [TwoAddrInst] Emit COPYs for undef REG_SEQUENCE operands if used in inst with early-clobber defs

Matthias Braun via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Sep 21 10:19:29 PDT 2022


MatzeB added a comment.

I don't understand this. I would expect that you can always remove a `%X.subY = COPY undef %Z` statement and nothing changes, why do early-clobber users have any effect on that?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D134343/new/

https://reviews.llvm.org/D134343



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