[all-commits] [llvm/llvm-project] bd261e: [SelectionDAG] Add SDNode::user_begin() and use it...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: bd261ecc5aeefd62150cb5f04e4a4f0cb7a12e1c
      https://github.com/llvm/llvm-project/commit/bd261ecc5aeefd62150cb5f04e4a4f0cb7a12e1c
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2024-12-18 (Wed, 18 Dec 2024)

  Changed paths:
    M llvm/include/llvm/CodeGen/SelectionDAGNodes.h
    M llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    M llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp
    M llvm/lib/Target/ARM/ARMISelLowering.cpp
    M llvm/lib/Target/Hexagon/HexagonISelDAGToDAG.cpp
    M llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
    M llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
    M llvm/lib/Target/PowerPC/PPCISelLowering.cpp
    M llvm/lib/Target/RISCV/RISCVISelLowering.cpp
    M llvm/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp
    M llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/lib/Target/X86/X86ISelLoweringCall.cpp

  Log Message:
  -----------
  [SelectionDAG] Add SDNode::user_begin() and use it in some places (#120509)

Most of these are just places that want the first user and aren't
iterating over the whole list.

While there I changed some use_size() == 1 to hasOneUse() which
is more efficient.

This is part of an effort to rename use_iterator to user_iterator
and provide a use_iterator that dereferences to SDUse&. This patch
helps reduce the diff on later patches.



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