[PATCH] D132190: [AArch64][GlobalISel] Legalize G_SHUFFLE_VECTOR with different lengths

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

This is a similarly complicated case to unaligned load/store access. My plan for that is to move all the logic into a generic lower function in LegalizerHelper, possibly with different implementation helper functions. However, the generic lower pass would be reliant on calling into some kind of TargetLowering hook to make decisions based on legal masks


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  https://reviews.llvm.org/D132190/new/

https://reviews.llvm.org/D132190