[PATCH] D149071: [X86] LowerRotate: prefer unpack-based algorithm

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a reviewer: pengfei.
RKSimon added a comment.

LGTM

@pengfei @LuoYuanke Are you happy with the performance vs code size trade off?


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https://reviews.llvm.org/D149071