[all-commits] [llvm/llvm-project] a7a74b: [SLP]Improve reordering of the alternate nodes

[Alexey Bataev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a7a74b349d508e0cc0de53d90a695e3675f54b6a
      https://github.com/llvm/llvm-project/commit/a7a74b349d508e0cc0de53d90a695e3675f54b6a
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2025-04-24 (Thu, 24 Apr 2025)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    M llvm/test/Transforms/PhaseOrdering/AArch64/slpordering.ll
    M llvm/test/Transforms/SLPVectorizer/AArch64/loadorder.ll
    M llvm/test/Transforms/SLPVectorizer/AArch64/transpose-inseltpoison.ll
    M llvm/test/Transforms/SLPVectorizer/AArch64/transpose.ll
    M llvm/test/Transforms/SLPVectorizer/RISCV/complex-loads.ll
    M llvm/test/Transforms/SLPVectorizer/vectorize-reorder-alt-shuffle.ll

  Log Message:
  -----------
  [SLP]Improve reordering of the alternate nodes

Better to preserve the original order of the alternate nodes to avoid
inter-lane shuffling, select/insert subvector patterns provide better
perf.

Reviewers: RKSimon, hiraditya

Reviewed By: RKSimon

Pull Request: https://github.com/llvm/llvm-project/pull/136329



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