[PATCH] D73197: [x86] match concat of 128-bit high half vectors before lowering to VPERM2X128

[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 - cheers


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D73197/new/

https://reviews.llvm.org/D73197