[PATCH] D38128: Handle COPYs of physregs better (regalloc hints)

[Jonas Paulsson via Phabricator via llvm-commits]

jonpa added a comment.

Commited as r319754.

I will not close this review since the next step is to remove the temporary enableMultipleCopyHints() hook, after everyone is returning true.

Tom, Nemanja, Martin, Eli... I hope you will try this soon...

Targets that implement getRegAllocationHints() (ARM), might want to review that implementation in regards to the new common-code...


https://reviews.llvm.org/D38128