[PATCH] D39704: [X86] [CodeGen] Compiler not using SHLD/SHRD instructions when doing double shift pattern combine for 16bit or 8bit arguments (PR35155)

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.
Herald added a subscriber: pengfei.

@kbelochapka Abandon this patch? The plan is now to handle it in InstCombine inside narrowRotate.


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  https://reviews.llvm.org/D39704/new/

https://reviews.llvm.org/D39704