[PATCH] D54274: Constant folding and instcombine for saturating subs

[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 - happy for vector support to be added as a follow up patch


https://reviews.llvm.org/D54274