[PATCH] D54280: [x86] try to form broadcast before widening shuffle elements

[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 - Generally we've tried to avoid lowering in lowerVectorShuffle directly (although lowerVectorShuffleWithVPMOV seems to have gotten in...) - but given the nature of broadcasts this looks OK


https://reviews.llvm.org/D54280