[PATCH] D71701: [AArch64] Peephole optimization. Merge AND and TST instructions

[Sjoerd Meijer via Phabricator via llvm-commits]

SjoerdMeijer added a comment.

> So, do I need to create another patch with ISel implementation (I mean - create another differential revision), or it is better to change this patch?

As is usually the case, there are multiple ways to achieve the same thing.... We don't need 2 implementations, but just pick the right approach. Dave suggested isel, and is open to alternatives. This patch is small and simple, and so I think this is a good place for it (as also remarked by Dave). And @craig.topper suggestion is very interesting, that will probably involve the least amount of code if something similar works for us, so that's probably best to check that first.


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  https://reviews.llvm.org/D71701/new/

https://reviews.llvm.org/D71701