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

[Hiroshi Inoue via Phabricator via llvm-commits]

inouehrs added a comment.

@gberry Thank you for the suggestions. I updated the implementation not to use kill flags.
Also, I updated not to optimize reg copies around ABI-dependent special registers such as stack pointer.
Additionally, the current version avoids optimization for specific ABI-dependent opcode (GETtlsldADDR), but I will use isRenamable flag after https://reviews.llvm.org/D39400 is merged.


https://reviews.llvm.org/D39536