[all-commits] [llvm/llvm-project] e5b60e: [SDPatternMatch] Make m_SetCC work like m_ICmp fro...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e5b60e5dfcce8f985296a512a74386b722572b8a
      https://github.com/llvm/llvm-project/commit/e5b60e5dfcce8f985296a512a74386b722572b8a
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2026-09-28 (Mon, 28 Sep 2026)

  Changed paths:
    M llvm/include/llvm/CodeGen/SDPatternMatch.h
    M llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp
    M llvm/lib/Target/RISCV/RISCVISelLowering.cpp
    M llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/unittests/CodeGen/SelectionDAGPatternMatchTest.cpp

  Log Message:
  -----------
  [SDPatternMatch] Make m_SetCC work like m_ICmp from IR PatternMatch. (#226623)

The condition code is stored an operand, but we don't need to expose
that to the interface.

This adds 2 signatures of m_Setcc, one that takes 2 operands and matches
any condition code and one that takes the matched condition code by
reference. For m_SpecificCondCode cases, I've added m_SpecificSetCC.

Similar changes have been applied to m_SelectCC and m_SelectCCLike.

Out of tree targets will need to update to the new interface.

Assisted-by: Claude



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