[PATCH] D94992: [SLP]Merge reorder and reuse shuffles.

[Alexey Bataev via Phabricator via llvm-commits]

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

It is possible to merge reuse and reorder shuffles and reduce the total
cost of the vectorization tree/number of final instructions.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D94992

Files:
  llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
  llvm/test/Transforms/SLPVectorizer/AArch64/PR38339.ll
  llvm/test/Transforms/SLPVectorizer/X86/PR32086.ll
  llvm/test/Transforms/SLPVectorizer/X86/shrink_after_reorder.ll

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