[all-commits] [llvm/llvm-project] cdea38: Reland "[LoopVectorizer] Add support for chaining ...

[Nicholas Guy via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: cdea38f91afcae93cc2a552cd96c41d8d3ab2ad6
      https://github.com/llvm/llvm-project/commit/cdea38f91afcae93cc2a552cd96c41d8d3ab2ad6
  Author: Nicholas Guy <nicholas.guy at arm.com>
  Date:   2025-01-28 (Tue, 28 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:
  -----------
  Reland "[LoopVectorizer] Add support for chaining partial reductions #120272" (#124282)

Change `getScaledReduction` to take an existing vector, rather than
creating and returning a new one each call.
Rename `getScaledReduction` to `getScaledReductions` to more accurately
reflect what it's now doing.

---------

Co-authored-by: Karlo Basioli <68535415+basioli-k at users.noreply.github.com>



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