[PATCH] D41835: [MachineCopyPropagation] Extend pass to do COPY source forwarding

[Geoff Berry via Phabricator via llvm-commits]

gberry added a comment.

https://reviews.llvm.org/D42449 adds the machine verifier check that no renamable operands are assigned to reserved registers


Repository:
  rL LLVM

https://reviews.llvm.org/D41835