[all-commits] [llvm/llvm-project] f68dbb: [VectorCombine] Add test coverage for #121110

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f68dbbbd57dd0947730300d1e827ad16c2dfffb5
      https://github.com/llvm/llvm-project/commit/f68dbbbd57dd0947730300d1e827ad16c2dfffb5
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2024-12-28 (Sat, 28 Dec 2024)

  Changed paths:
    M llvm/test/Transforms/VectorCombine/X86/shuffle-of-cmps.ll

  Log Message:
  -----------
  [VectorCombine] Add test coverage for #121110


  Commit: f2f02b21cd581057e3c9b4a7a27e0014eeb9ba15
      https://github.com/llvm/llvm-project/commit/f2f02b21cd581057e3c9b4a7a27e0014eeb9ba15
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2024-12-28 (Sat, 28 Dec 2024)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/VectorCombine.cpp
    M llvm/test/Transforms/VectorCombine/X86/shuffle-of-cmps.ll

  Log Message:
  -----------
  [VectorCombine] foldShuffleOfBinops - only accept exact matching cmp predicates

m_SpecificCmp allowed equivalent predicate+flags which don't necessarily work after being folded from "shuffle (cmpop), (cmpop)" into "cmpop (shuffle), (shuffle)"

Fixes #121110


Compare: https://github.com/llvm/llvm-project/compare/52bbe20eb40f...f2f02b21cd58

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