[all-commits] [llvm/llvm-project] afa3c1: Revert "[SLP]Improved reduction cost/codegen"

[Alexey Bataev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: afa3c10de70a73a77414e625c119f2d0b8411414
      https://github.com/llvm/llvm-project/commit/afa3c10de70a73a77414e625c119f2d0b8411414
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2025-02-14 (Fri, 14 Feb 2025)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    M llvm/test/Transforms/SLPVectorizer/AArch64/InstructionsState-is-invalid-0.ll
    M llvm/test/Transforms/SLPVectorizer/AArch64/reduce-fadd.ll
    M llvm/test/Transforms/SLPVectorizer/AMDGPU/reduction.ll
    M llvm/test/Transforms/SLPVectorizer/RISCV/horizontal-list.ll
    M llvm/test/Transforms/SLPVectorizer/RISCV/reductions.ll
    M llvm/test/Transforms/SLPVectorizer/X86/bool-mask.ll
    M llvm/test/Transforms/SLPVectorizer/X86/external-used-across-reductions.ll
    M llvm/test/Transforms/SLPVectorizer/X86/extract-scalar-from-undef.ll
    M llvm/test/Transforms/SLPVectorizer/X86/extractelemets-extended-by-poison.ll
    M llvm/test/Transforms/SLPVectorizer/X86/horizontal-list.ll
    M llvm/test/Transforms/SLPVectorizer/X86/horizontal-minmax.ll
    M llvm/test/Transforms/SLPVectorizer/X86/malformed_phis.ll
    M llvm/test/Transforms/SLPVectorizer/X86/multi-tracked-reduced-value.ll
    M llvm/test/Transforms/SLPVectorizer/X86/phi-node-reshuffled-part.ll
    M llvm/test/Transforms/SLPVectorizer/X86/reduced-val-extracted-and-externally-used.ll
    M llvm/test/Transforms/SLPVectorizer/X86/reduced-value-vectorized-later.ll
    M llvm/test/Transforms/SLPVectorizer/X86/reduction-extracted-value.ll
    M llvm/test/Transforms/SLPVectorizer/X86/revectorized_rdx_crash.ll
    M llvm/test/Transforms/SLPVectorizer/X86/undef_vect.ll
    M llvm/test/Transforms/SLPVectorizer/partial-register-extract.ll
    M llvm/test/Transforms/SLPVectorizer/reduction-modified-values.ll
    M llvm/test/Transforms/SLPVectorizer/scalarization-overhead.ll

  Log Message:
  -----------
  Revert "[SLP]Improved reduction cost/codegen"

This reverts commit 2ad816648f2719e6c0da507a1a371f2cad4a3f1c to fix
bug/miscompiles, reported in
https://github.com/llvm/llvm-project/pull/118293#issuecomment-2658906033
and https://github.com/llvm/llvm-project/pull/118293#issuecomment-2659024785.



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications