[all-commits] [llvm/llvm-project] bd170b: Revert "[SLP] Check if the user node has state bef...

[Martin Storsjö via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: bd170b78bb7f64f889c744b3f56eb043ddbfa312
      https://github.com/llvm/llvm-project/commit/bd170b78bb7f64f889c744b3f56eb043ddbfa312
  Author: Martin Storsjö <martin at martin.st>
  Date:   2025-07-25 (Fri, 25 Jul 2025)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    R llvm/test/Transforms/SLPVectorizer/X86/user-node-no-state.ll

  Log Message:
  -----------
  Revert "[SLP] Check if the user node has state before trying getting main instruction/opcode"

This reverts commit c9cea24fe68e24750b2d479144f839e1c2ec9d2b.

This is being reverted as it is intermixed with another commit
(898bba311f180ed54de33dc09e7071c279a4942a) that needs to be reverted.


  Commit: 936ee35dccbac55622b14279cf9f8c35d4e27b90
      https://github.com/llvm/llvm-project/commit/936ee35dccbac55622b14279cf9f8c35d4e27b90
  Author: Martin Storsjö <martin at martin.st>
  Date:   2025-07-25 (Fri, 25 Jul 2025)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    M llvm/test/Transforms/SLPVectorizer/X86/buildvector-schedule-for-subvector.ll
    M llvm/test/Transforms/SLPVectorizer/X86/extract-scalar-from-undef.ll
    M llvm/test/Transforms/SLPVectorizer/X86/full-match-with-poison-scalar.ll
    M llvm/test/Transforms/SLPVectorizer/X86/node-outside-used-only.ll
    M llvm/test/Transforms/SLPVectorizer/X86/non-schedulable-instructions-become-schedulable.ll
    M llvm/test/Transforms/SLPVectorizer/X86/pr47642.ll
    M llvm/test/Transforms/SLPVectorizer/X86/revec-reduced-value-vectorized-later.ll
    M llvm/test/Transforms/SLPVectorizer/alternate-non-profitable.ll

  Log Message:
  -----------
  Revert "[SLP]Initial support for copyable elements (non-schedulable only)"

This reverts commit 898bba311f180ed54de33dc09e7071c279a4942a.

This change caused hangs and crashes, see
https://github.com/llvm/llvm-project/pull/140279#issuecomment-3115051063.


Compare: https://github.com/llvm/llvm-project/compare/bcfd29418f88...936ee35dccba

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