[PATCH] D123781: [AArch64] Add `foldADCToCINC` DAG combine

[Paul Walker via Phabricator via llvm-commits]

paulwalker-arm added a comment.

It's not immediate clear to me what the advantage is to using `CINC` verses `ADC`.  Sure some of the tests emit less code but for those cases it just looks like we're not making good use of `xzr`?


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  https://reviews.llvm.org/D123781/new/

https://reviews.llvm.org/D123781