[all-commits] [llvm/llvm-project] 378ac5: Reland "[SelectionDAG] Introducing a new ISD::POIS...

[zhijian lin via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 378ac572accc6d14ed36136f261951f8607a9169
      https://github.com/llvm/llvm-project/commit/378ac572accc6d14ed36136f261951f8607a9169
  Author: zhijian lin <zhijian at ca.ibm.com>
  Date:   2025-04-10 (Thu, 10 Apr 2025)

  Changed paths:
    M llvm/include/llvm/CodeGen/ISDOpcodes.h
    M llvm/include/llvm/CodeGen/SelectionDAG.h
    M llvm/include/llvm/CodeGen/SelectionDAGNodes.h
    M llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
    M llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
    M llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
    M llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
    M llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAGDumper.cpp
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
    M llvm/test/CodeGen/AArch64/vector-insert-dag-combines.ll
    A llvm/test/CodeGen/PowerPC/poison-legalization.ll
    A llvm/test/CodeGen/RISCV/poison-legalization.ll
    M llvm/test/CodeGen/X86/half.ll
    M llvm/test/CodeGen/X86/pr119158.ll

  Log Message:
  -----------
  Reland "[SelectionDAG] Introducing a new ISD::POISON SDNode to represent the poison value in the IR." (#135056)

A new ISD::POISON SDNode is introduced to represent the poison value in
the IR, replacing the previous use of ISD::UNDEF



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