[PATCH] D39536: [PowerPC] Eliminate redundant register copys after register allocation

[Geoff Berry via Phabricator via llvm-commits]

gberry added reviewers: MatzeB, qcolombet.
gberry added a comment.

I'm not sure adding a new pass that relies on kill flags is a good idea, since I believe they are slowly being phased out.
Also, if you stop using kill flags I believe you will need something like https://reviews.llvm.org/D39400 in order to avoid removing copies whose defs are needed for ABI/ISA reasons that aren't captured in the MI representation.


https://reviews.llvm.org/D39536