[all-commits] [llvm/llvm-project] 6b3bb4: [X86] combineConcatVectorOps - convert PSHUFB/PSAD...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6b3bb44227fc4d66d1a304b32566ea9263799921
      https://github.com/llvm/llvm-project/commit/6b3bb44227fc4d66d1a304b32566ea9263799921
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2025-03-10 (Mon, 10 Mar 2025)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/combine-pmadd.ll
    M llvm/test/CodeGen/X86/vector-shuffle-combining-avx2.ll

  Log Message:
  -----------
  [X86] combineConcatVectorOps - convert PSHUFB/PSADBW/VPMADDUBSW/VPMADDUBSW concatenation to use combineConcatVectorOps recursion (#130592)

Only concatenate nodes if at least one operand is beneficial to concatenate



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