[all-commits] [llvm/llvm-project] 2532eb: [X86] Add test showing failure to concat VBLENDVB ...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2532ebb341d9c60692688fdd5b94cf61693e1e63
      https://github.com/llvm/llvm-project/commit/2532ebb341d9c60692688fdd5b94cf61693e1e63
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2024-07-04 (Thu, 04 Jul 2024)

  Changed paths:
    M llvm/test/CodeGen/X86/vselect-avx.ll

  Log Message:
  -----------
  [X86] Add test showing failure to concat VBLENDVB nodes back together through bitcasts


  Commit: d43ec97de081755990264049eba09cb7c83cb321
      https://github.com/llvm/llvm-project/commit/d43ec97de081755990264049eba09cb7c83cb321
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2024-07-04 (Thu, 04 Jul 2024)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/vselect-avx.ll

  Log Message:
  -----------
  [X86] combineConcatVectorOps - IsConcatFree - peek through bitcasts to find inplace subvectors.

The EXTRACT_SUBVECTOR nodes don't have to be the same type, they just need to be at the correct bit offsets when concatenated back together.


Compare: https://github.com/llvm/llvm-project/compare/e0f4d27a50c6...d43ec97de081

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