[all-commits] [llvm/llvm-project] b4a0fd: [SLP]Fix PR89635: do not try to vectorize single-g...

[Alexey Bataev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b4a0fd40f1b94eac571d29ee7695b492934d9bfc
      https://github.com/llvm/llvm-project/commit/b4a0fd40f1b94eac571d29ee7695b492934d9bfc
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2024-04-23 (Tue, 23 Apr 2024)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    A llvm/test/Transforms/SLPVectorizer/X86/alternate-opcode-sindle-bv.ll

  Log Message:
  -----------
  [SLP]Fix PR89635: do not try to vectorize single-gather alternate node.

No need to try to vectorize single gather/buildvector with alternate
opcode graph, it is not profitable. In other cases, need to use last
instruction for inserting the vectorized code.



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