[all-commits] [llvm/llvm-project] 1e26f8: [LV] Add ExtNegatedMulAccReduction expression type

[Sam Tebbs via All-commits]

  Branch: refs/heads/users/SamTebbs33/vpexpression-negated-mul
  Home:   https://github.com/llvm/llvm-project
  Commit: 1e26f885620a00e9733102c36dd626552cb9dda5
      https://github.com/llvm/llvm-project/commit/1e26f885620a00e9733102c36dd626552cb9dda5
  Author: Sam Tebbs <samuel.tebbs at arm.com>
  Date:   2025-09-22 (Mon, 22 Sep 2025)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/VPlan.h
    M llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
    M llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
    M llvm/test/Transforms/LoopVectorize/vplan-printing-reductions.ll

  Log Message:
  -----------
  [LV] Add ExtNegatedMulAccReduction expression type

This PR adds the ExtNegatedMulAccReduction expression type for
VPExpressionRecipe so that extend-multiply-accumulate reductions with a
negated multiply can be bundled.

Stacked PRs:

1. https://github.com/llvm/llvm-project/pull/156976
2. -> This
3. https://github.com/llvm/llvm-project/pull/147302



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