[all-commits] [llvm/llvm-project] caf054: [LoopVectorizer] Add support for chaining partial ...

[Nicholas Guy via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: caf0540b91b0fee31353dc7049ae836e0f814cff
      https://github.com/llvm/llvm-project/commit/caf0540b91b0fee31353dc7049ae836e0f814cff
  Author: Nicholas Guy <nicholas.guy at arm.com>
  Date:   2025-01-23 (Thu, 23 Jan 2025)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    M llvm/lib/Transforms/Vectorize/VPRecipeBuilder.h
    M llvm/lib/Transforms/Vectorize/VPlan.h
    A llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-chained.ll

  Log Message:
  -----------
  [LoopVectorizer] Add support for chaining partial reductions (#120272)

Chaining partial reductions, where multiple partial reductions share an
accumulator, allow for more values to be combined together as part of
the reduction without discarding the semantics of the partial reduction
itself.



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