[PATCH] D60318: [ExpandMemCmp] Improve generated code for simple non-equality compares.

[Sanjay Patel via Phabricator via llvm-commits]

spatel added a comment.

I agree that we shouldn't have to do anything too fancy here. Ideally, DAGCombiner would take care of this generally, so we're not optimizing this 1 special-case pattern that includes memcmp and ignoring the general case.

Did you investigate what that would take? We get this in instcombine, so we do have some set of peepholes to potentially copy.


Repository:
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  https://reviews.llvm.org/D60318/new/

https://reviews.llvm.org/D60318