[PATCH] D40556: SIFixSGPRCopies should not change non-divergent PHI

[Alexander via Phabricator via llvm-commits]

alex-t added a comment.

In fact yes. This is the most correct solution. The stuff in
SIFixSGPRCopies.cpp has got to gone.
So it does not make sense to spend efforts on it. Moreover there is no
correct solution at all
unless we implement one more DivergenceAnalysis upon the machine IR.
So, if it's okay I'd prefer to revert.


Repository:
  rL LLVM

https://reviews.llvm.org/D40556