[PATCH] D117328: GlobalISel: Add bitcast to tryFoldUnmergeCast

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

I'm not sure what to do about this. It feels right to treat bitcast as a legalization artifact, but I also can't convince myself it really is. You can always implement bitcast as a stack store and reload, so the fundamental property the artifact combiner is needed for isn't there.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D117328/new/

https://reviews.llvm.org/D117328