[PATCH] D115653: [DAG]Introduce llvm::processShuffleMasks and use it for shuffles in DAG Type Legalizer.

[Sanjay Patel via Phabricator via llvm-commits]

spatel added a comment.

In D115653#3375682 <https://reviews.llvm.org/D115653#3375682>, @ABataev wrote:

> If I understood your question correctly, NoInputAction, SingleInputAction and ManyInputsAction params are exactly for this.

I'm wondering when the NoInput or SingleInput behavior would be something other than return of undef or a unary shuffle. If we never diverge from that, then we don't need to complicate the interface with those parameters?


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