[PATCH] D116312: [SLP]Improve isGatherShuffledEntry to handles shuffles between different length vectors.

[Alexey Bataev via Phabricator via llvm-commits]

ABataev created this revision.
ABataev added reviewers: RKSimon, anton-afanasyev, dtemirbulatov.
Herald added a subscriber: hiraditya.
ABataev requested review of this revision.
Herald added a project: LLVM.

Originally isGatherShuffledEntry supports shuffles between 2 input
vectors of the same size. Actually, we can support the shuffles between
vectors of 2 different sizes. One of them (or both, for variable length
vector) just must be resized to match the sizes. Improves cost and the
vectorization itself.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D116312

Files:
  llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
  llvm/test/Transforms/SLPVectorizer/X86/shuffled-gathers-diff-size.ll

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