[all-commits] [llvm/llvm-project] fe754d: [SLP]Remove LoadCombine workaround after handling ...

[Alexey Bataev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: fe754dff6d7ed3f7d69e5a97846d9320cb407977
      https://github.com/llvm/llvm-project/commit/fe754dff6d7ed3f7d69e5a97846d9320cb407977
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2026-02-05 (Thu, 05 Feb 2026)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    M llvm/test/Transforms/PhaseOrdering/X86/loadcombine.ll
    M llvm/test/Transforms/SLPVectorizer/X86/bad-reduction.ll
    M llvm/test/Transforms/SLPVectorizer/X86/bswap-reduction-aliased.ll
    M llvm/test/Transforms/SLPVectorizer/X86/load-merge-inseltpoison.ll
    M llvm/test/Transforms/SLPVectorizer/X86/load-merge.ll

  Log Message:
  -----------
  [SLP]Remove LoadCombine workaround after handling of the copyables

LoadCombine pattern handling was added as a workaround for the cases,
where the SLP vectorizer could not vectorize the code effectively. With
the copyables support, it can handle it directly.

Also, patch adds support for scalar loads[ + bswap] pattern for byte
sized loads (+ reverse bytes for bswap)

Recommit after revert in 6377c86d718232fe60c548dfd7ab439f7ff84df7

Reviewers: RKSimon, hiraditya

Pull Request: https://github.com/llvm/llvm-project/pull/174205



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