[PATCH] D50165: [X86] Add a DAG combine for the __builtin_parity idiom used by clang to enable better codegen

[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 with the test cases pre-committed. Thanks.


https://reviews.llvm.org/D50165