[PATCH] D63233: [CodeGenPrepare] shift both sides of a vector select when profitable

[Sanjay Patel via Phabricator via llvm-commits]

spatel planned changes to this revision.
spatel added a comment.

For reference, the vector shift TLI hook was originally added for a related CGP transform:
rL201655 <https://reviews.llvm.org/rL201655>

Also, I just noticed that neither that patch nor this propagates debuginfo (we're now trying harder to improve the debugging experience even with optimized code). I'll add some lines to change/test that.


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  https://reviews.llvm.org/D63233/new/

https://reviews.llvm.org/D63233