[PATCH] D55898: [x86] add movddup specialization for build vector lowering (PR37502)

[Simon Pilgrim via Phabricator via llvm-commits]

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

I'm happy to accept this - getting the MOVDDUP fold fixed as a followup would be very useful. Hopefully if D31373 <https://reviews.llvm.org/D31373> can be resurrected we can replace this with the more general case.


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  https://reviews.llvm.org/D55898/new/

https://reviews.llvm.org/D55898