[PATCH] D155845: [VPlan] Fix in-loop reduction chains using VPlan def-use chains (NFCI)

[Florian Hahn via Phabricator via llvm-commits]

fhahn created this revision.
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Update adjustRecipesForReductions to directly use the VPlan def-use
chains for in-loop reductions to collect the reduction operations that
need adjusting.

This allows the removal of

- ReductionChainMap
- recording of recipes for instruction in the reduction chain
- removes late uses of getVPValue
- removes to need for removeVPValueFor.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D155845

Files:
  llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
  llvm/lib/Transforms/Vectorize/VPlan.h

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