[PATCH] D114909: [SLP]Outline and fix code for finding common insertelement vectors.

[Alexey Bataev via Phabricator via llvm-commits]

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

Need to outline the code for finding common vectors in insertelement
instructions into a separate function for future patches. It also
improves the process by adding some extra checks for early exit and
fixes a bug where it always finds the match because of erroneous compare
of the same values.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D114909

Files:
  llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
  llvm/test/Transforms/SLPVectorizer/X86/cmp_commute-inseltpoison.ll
  llvm/test/Transforms/SLPVectorizer/X86/cmp_commute.ll

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