[PATCH] D77393: [X86] Fix implicit sign conversion warnings in X86 headers.

[Simon Pilgrim via Phabricator via cfe-commits]

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

LGTM with the minor addition an extra CHECK-LABEL


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D77393/new/

https://reviews.llvm.org/D77393