[PATCH] D149081: [VPlan] Add VPWidenCastRecipe, split off from VPWidenRecipe (NFCI).

[Florian Hahn via Phabricator via llvm-commits]

fhahn created this revision.
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To generate cast instructions, the result type is needed. To allow
creating widened casts without underlying instruction, introduce a new
VPWidenCastRecipe that also holds the result type.

This functionality will be used in a follow-up patch to
implement truncateToMinimalBitwidths as VPlan-to-VPlan transform.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D149081

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

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