[PATCH] D40298: [PowerPC] Merge register copies

[Hiroshi Inoue via Phabricator via llvm-commits]

inouehrs added a comment.

In https://reviews.llvm.org/D40298#996104, @nemanjai wrote:

> Can you please re-evaluate the applicability and functionality of this patch in light of related patches that recently landed. For example, does https://reviews.llvm.org/rL323991 affect this patch?


COPY source forwarding (https://reviews.llvm.org/rL323991) does not affect this optimization; they seem mostly orthogonal.
The number of reg copy merge optimizations happened are mostly unchanged by enabling/disabling the COPY source forwarding (26433 with COPY source forwarding and 26173 without COPY source forwarding during the bootstrap test).


https://reviews.llvm.org/D40298