[all-commits] [llvm/llvm-project] 133c12: [SLP]Fix a crash on accessing element with index -...

[Alexey Bataev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 133c1224de0004558d74ad1787873cfd26ceaf9f
      https://github.com/llvm/llvm-project/commit/133c1224de0004558d74ad1787873cfd26ceaf9f
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2024-10-03 (Thu, 03 Oct 2024)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    A llvm/test/Transforms/SLPVectorizer/X86/reused-mask-with-poison-index.ll

  Log Message:
  -----------
  [SLP]Fix a crash on accessing element with index -1 for reused mask with PoisonMaskElem

Need to check if the index from the ReuseShuffleIndices mask is not
equal to PoisonMaskElem before trying to access the element by index.



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