[PATCH] D116304: [VPlan] Add abstract base class for header phi recipes (NFC).

[Florian Hahn via Phabricator via llvm-commits]

fhahn created this revision.
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Not all header phis widen the phi, e.g. like the new
VPCanonicalIVPHIRecipe in D113223 <https://reviews.llvm.org/D113223>. To let those recipes also inherit
from a phi-like base class, add a more generic VPHeaderPHIRecipe
abstract base class.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D116304

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

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