[PATCH] D106140: [LV] Change interface of getReductionPatternCost to return Optional

[Sander de Smalen via Phabricator via llvm-commits]

sdesmalen accepted this revision.
sdesmalen added a comment.
This revision is now accepted and ready to land.

The patch looks fine to me, although this might be an incentive to add a new UnknownCost state to `InstructionCost`? Is this something you've considered?


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  https://reviews.llvm.org/D106140/new/

https://reviews.llvm.org/D106140