[PATCH] D145177: [DAGCombiner] Add fold for `~x + x` -> `-1`

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon accepted this revision.
RKSimon added a comment.
This revision is now accepted and ready to land.

LGTM


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D145177/new/

https://reviews.llvm.org/D145177