[PATCH] D98659: [MachineCopyPropagation] Do more backward copy propagations

[yshui via Phabricator via llvm-commits]

yshui added a comment.

Things still need to be done:

1. Review the failed tests and see which ones are actual bad CodeGen, and which ones need to be updated.
2. Add a test case for this propagation case.

I need some help with (2) as I can't come up with a simple test case that generates the kind of machine IR pattern I need.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D98659/new/

https://reviews.llvm.org/D98659