[all-commits] [llvm/llvm-project] 060d62: [LoopVectorizer] Add support for partial reduction...

[Nicholas Guy via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 060d62b48aeb5080ffcae1dc56e41a06c6f56701
      https://github.com/llvm/llvm-project/commit/060d62b48aeb5080ffcae1dc56e41a06c6f56701
  Author: Nicholas Guy <nicholas.guy at arm.com>
  Date:   2024-12-19 (Thu, 19 Dec 2024)

  Changed paths:
    M llvm/include/llvm/Analysis/TargetTransformInfo.h
    M llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
    M llvm/lib/Analysis/TargetTransformInfo.cpp
    M llvm/lib/Target/AArch64/AArch64TargetTransformInfo.h
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    M llvm/lib/Transforms/Vectorize/VPRecipeBuilder.h
    M llvm/lib/Transforms/Vectorize/VPlan.h
    M llvm/lib/Transforms/Vectorize/VPlanAnalysis.cpp
    M llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
    M llvm/lib/Transforms/Vectorize/VPlanValue.h
    M llvm/test/Transforms/LoopVectorize/AArch64/fully-unrolled-cost.ll
    A llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-dot-product-epilogue.ll
    A llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-dot-product-neon.ll
    A llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-dot-product.ll
    A llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-no-dotprod.ll
    A llvm/test/Transforms/LoopVectorize/AArch64/vplan-printing.ll

  Log Message:
  -----------
  [LoopVectorizer] Add support for partial reductions (#92418)

Following on from https://github.com/llvm/llvm-project/pull/94499, this
patch adds support to the Loop Vectorizer to emit the partial reduction
intrinsics where they may be beneficial for the target.

---------

Co-authored-by: Samuel Tebbs <samuel.tebbs at arm.com>



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