[all-commits] [llvm/llvm-project] fc6486: [SLP]Add external uses estimations into tree throt...

[Alexey Bataev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: fc648683cd751d66ead63e84cab828b6a92de7d7
      https://github.com/llvm/llvm-project/commit/fc648683cd751d66ead63e84cab828b6a92de7d7
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2026-02-11 (Wed, 11 Feb 2026)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    M llvm/test/Transforms/SLPVectorizer/X86/gathered-loads-non-full-reg.ll
    M llvm/test/Transforms/SLPVectorizer/X86/vec_list_bias-inseltpoison.ll
    M llvm/test/Transforms/SLPVectorizer/X86/vec_list_bias.ll
    M llvm/test/Transforms/SLPVectorizer/X86/vec_list_bias_external_insert_shuffled.ll

  Log Message:
  -----------
  [SLP]Add external uses estimations into tree throttling

Added basic estimations for the external uses, when calculating the cost
of the non-profitable trees. Excluding stores/insertelement, as thay are
very good candidates for the vectorization. Also, tuned
buildvector/gather cost with minimum bitwidth analysis data.

Reviewers: hiraditya, RKSimon

Pull Request: https://github.com/llvm/llvm-project/pull/178024



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