[all-commits] [llvm/llvm-project] d506ee: [SLP]Reuse the trimmed nodes in the perfectly matc...

[Alexey Bataev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: d506ee743cdaef27448964890f813bd3b7da7953
      https://github.com/llvm/llvm-project/commit/d506ee743cdaef27448964890f813bd3b7da7953
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2026-09-25 (Fri, 25 Sep 2026)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    M llvm/test/Transforms/SLPVectorizer/RISCV/trimmed-node-matching-gather.ll

  Log Message:
  -----------
  [SLP]Reuse the trimmed nodes in the perfectly matched gathers of the same user

The gather node, perfectly matching the node of the same user
transformed to gather during throttling, did not treat this node as a
reuse source, and was costed and emitted as a separate buildvector.

Fixes #219030

Reviewers: 

Pull Request: https://github.com/llvm/llvm-project/pull/226582



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