[all-commits] [llvm/llvm-project] e3a077: [VectorCombine] foldExtractedCmps - (re-)enable fo...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e3a0775651190a23d8234615b9fdadd81c1c24bc
      https://github.com/llvm/llvm-project/commit/e3a0775651190a23d8234615b9fdadd81c1c24bc
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2024-11-06 (Wed, 06 Nov 2024)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/VectorCombine.cpp
    M llvm/test/Transforms/VectorCombine/X86/extract-cmp-binop.ll
    M llvm/test/Transforms/VectorCombine/X86/pr114901.ll

  Log Message:
  -----------
  [VectorCombine] foldExtractedCmps - (re-)enable fold on non-commutative binops

#114901 exposed that foldExtractedCmps didn't account for non-commutative binops, and were disabled by 05e838f428555bcc4507bd37912da60ea9110ef6

This patch re-enables support for non-commutative binops by ensuring that the LHS/RHS arg order of the binop is retained.



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