[all-commits] [llvm/llvm-project] 369119: [SLP]Better detection of perfect/shuffles matches ...

[cilkplus via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 36911971a58d1ba8b15e97790ac816eaadb0603e
      https://github.com/llvm/llvm-project/commit/36911971a58d1ba8b15e97790ac816eaadb0603e
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2021-06-01 (Tue, 01 Jun 2021)

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

  Log Message:
  -----------
  [SLP]Better detection of perfect/shuffles matches for gather nodes.

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.

Differential Revision: https://reviews.llvm.org/D102920