[PATCH] D123911: [VectorCombine] Fold shuffle select pattern

[Dave Green via Phabricator via llvm-commits]

dmgreen added a comment.

OK Thanks.

I've tried some examples on a few different architectures, and it seems to either not do anything or produce better code (or at least smaller code). It can be a bit dependant on a precise costmodel though, so let me know if any issues come up.


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