[PATCH] D40554: [PowerPC] Fix bugs in sign-/zero-extension elimination

[Stefan Pintilie via Phabricator via llvm-commits]

stefanp commandeered this revision.
stefanp edited reviewers, added: amyk; removed: stefanp.
stefanp added a comment.
Herald added a subscriber: shchenz.

Taking over this patch to rebase it on top of current code and to see if it can be eventually checked in.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D40554/new/

https://reviews.llvm.org/D40554