[PATCH] D63405: GlobalISel: Don't lose fneg flags when lowering to fsub

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

Should this expansion just be ripped out then? This is also broken in SelectionDAG. I don't like the idea of a legalization that relies on checking the flags, and this could be an optimization fold somewhere else


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D63405/new/

https://reviews.llvm.org/D63405