[PATCH] D56971: [X86] Add DAG combine to merge vzext_movl with the various fp<->int conversion operations that only write the lower 64-bits of an xmm register and zero the rest.

[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


Repository:
  rL LLVM

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  https://reviews.llvm.org/D56971/new/

https://reviews.llvm.org/D56971