[PATCH] D59777: [x86] improve AVX lowering of vector zext

[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 - someday shuffle combining will handle different sized source/destination registers (and we can properly combine from vinsertf128) but this is good enough for now.


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  https://reviews.llvm.org/D59777/new/

https://reviews.llvm.org/D59777