[PATCH] D100495: [SLP]Add detectyion of shuffled/perfect matching of tree entries.

[Alexey Bataev via Phabricator via llvm-commits]

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

SLP supports perfect diamond matching for the vectorized tree entries
but do not support it for gathered entries and does not support
non-perfect (shuffled) matching with 1 or 2 tree entries. Patch adds
support for this matching to improve cost of the vectorized tree.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D100495

Files:
  llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
  llvm/test/Transforms/SLPVectorizer/AArch64/gather-cost.ll
  llvm/test/Transforms/SLPVectorizer/X86/matched-shuffled-entries.ll

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