[all-commits] [llvm/llvm-project] 6e66cf: [SLP] Make getSameOpcode support interchangeable i...

[Han-Kuan Chen via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6e66cfeeaec6f09a4454400e45d690457ecdd3de
      https://github.com/llvm/llvm-project/commit/6e66cfeeaec6f09a4454400e45d690457ecdd3de
  Author: Han-Kuan Chen <hankuan.chen at sifive.com>
  Date:   2025-03-25 (Tue, 25 Mar 2025)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    M llvm/test/Transforms/SLPVectorizer/AArch64/vec3-base.ll
    M llvm/test/Transforms/SLPVectorizer/RISCV/reversed-strided-node-with-external-ptr.ll
    M llvm/test/Transforms/SLPVectorizer/RISCV/vec3-base.ll
    A llvm/test/Transforms/SLPVectorizer/X86/BinOpSameOpcodeHelper.ll
    M llvm/test/Transforms/SLPVectorizer/X86/barriercall.ll
    M llvm/test/Transforms/SLPVectorizer/X86/bottom-to-top-reorder.ll
    M llvm/test/Transforms/SLPVectorizer/X86/buildvector-postpone-for-dependency.ll
    M llvm/test/Transforms/SLPVectorizer/X86/bv-shuffle-mask.ll
    M llvm/test/Transforms/SLPVectorizer/X86/extract-scalar-from-undef.ll
    M llvm/test/Transforms/SLPVectorizer/X86/extractcost.ll
    M llvm/test/Transforms/SLPVectorizer/X86/gathered-delayed-nodes-with-reused-user.ll
    M llvm/test/Transforms/SLPVectorizer/X86/minbitwidth-drop-wrapping-flags.ll
    M llvm/test/Transforms/SLPVectorizer/X86/multi-extracts-bv-combined.ll
    M llvm/test/Transforms/SLPVectorizer/X86/non-scheduled-inst-reused-as-last-inst.ll
    M llvm/test/Transforms/SLPVectorizer/X86/propagate_ir_flags.ll
    M llvm/test/Transforms/SLPVectorizer/X86/reduced-val-vectorized-in-transform.ll
    M llvm/test/Transforms/SLPVectorizer/X86/reorder_diamond_match.ll
    M llvm/test/Transforms/SLPVectorizer/X86/shuffle-mask-emission.ll
    M llvm/test/Transforms/SLPVectorizer/X86/vec3-base.ll
    M llvm/test/Transforms/SLPVectorizer/X86/vect_copyable_in_binops.ll
    M llvm/test/Transforms/SLPVectorizer/alternate-opcode-sindle-bv.ll
    A llvm/test/Transforms/SLPVectorizer/isOpcodeOrAlt.ll
    M llvm/test/Transforms/SLPVectorizer/resized-alt-shuffle-after-minbw.ll
    M llvm/test/Transforms/SLPVectorizer/shuffle-mask-resized.ll

  Log Message:
  -----------
  [SLP] Make getSameOpcode support interchangeable instructions. (#132887)

We use the term "interchangeable instructions" to refer to different
operators that have the same meaning (e.g., `add x, 0` is equivalent to
`mul x, 1`).
Non-constant values are not supported, as they may incur high costs with
little benefit.

---------

Co-authored-by: Alexey Bataev <a.bataev at gmx.com>



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