[PATCH] D84550: [AArch64][GlobalISe] Fold G_AND and G_LSHR into ubfm

[Amara Emerson via Phabricator via llvm-commits]

aemerson added a comment.

It seems simpler to me to handle this in the selector directly. I’m not sure why a SUBREG_TO_REG is an issue for us in the combiner, but if this could also help O0 it’s better there for now.

If there’s a custom SD node that we want to combine to however that makes more sense to put in the post-legal combiner.


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