[PATCH] D102920: [SLP]Better detection of perfect/shuffles matches for gather nodes.

Alexey Bataev via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri May 21 07:23:03 PDT 2021


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

Implemented better scheme for perfect/shuffled matches of the gather
nodes which allows to fix the performance regressions introduced by
earlier patches. Starting detecting matches for broadcast nodes and
extractelement gathering.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D102920

Files:
  llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
  llvm/test/Transforms/SLPVectorizer/X86/blending-shuffle-inseltpoison.ll
  llvm/test/Transforms/SLPVectorizer/X86/blending-shuffle.ll
  llvm/test/Transforms/SLPVectorizer/X86/diamond_broadcast.ll

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