[all-commits] [llvm/llvm-project] dce6c4: [SLP]Improve isFixedVectorShuffle and its use.

[Andrew V. Tischenko via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: dce6c434ead3ccbaa67b8db2301b2a9fb4319123
      https://github.com/llvm/llvm-project/commit/dce6c434ead3ccbaa67b8db2301b2a9fb4319123
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2021-11-30 (Tue, 30 Nov 2021)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    M llvm/test/Transforms/SLPVectorizer/X86/alternate-int-inseltpoison.ll
    M llvm/test/Transforms/SLPVectorizer/X86/alternate-int.ll

  Log Message:
  -----------
  [SLP]Improve isFixedVectorShuffle and its use.

Extended support for undefined source vector/extract indices/non-fixed
vector types, also no need to check for the parent of the extractelement
instructions with the constant indicies.

Differential Revision: https://reviews.llvm.org/D114121