[PATCH] D116554: [VPlan] Add & use utility to check if only the first lane is used.

[Ayal Zaks via Phabricator via llvm-commits]

Ayal added a comment.

Worth having RecipeBase indicate if it's using first lane only, per operand and/or for all operands, in order to associate this logic within each recipe?

UAV is propagated at the outset and its results are encoded in isUniform replicating recipes upon VPlan construction; should Blend recipe also record if it's blending uniform values or not, when constructed, instead of looking through it recursively here?


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D116554/new/

https://reviews.llvm.org/D116554