[PATCH] D78852: [AArch64][GlobalISel] Add a post-legalizer combiner + remove undef stores

[Amara Emerson via Phabricator via llvm-commits]

aemerson added a comment.

At the moment, I don't think this is really necessary for -O0 (unless you have some data to suggest otherwise). (I also think at some point we should audit the combines for necessity at -O0, since the PreLegalizerCombiner is matching all of them.)


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  https://reviews.llvm.org/D78852/new/

https://reviews.llvm.org/D78852