C++ (Cpp) TargetRegisterClass::getSuperClasses примеры использования

Пример #1

Файл: HexagonRegisterInfo.cpp Проект: Lucretia/llvm

unsigned HexagonRegisterInfo::getHexagonSubRegIndex(
      const TargetRegisterClass &RC, unsigned GenIdx) const {
  assert(GenIdx == Hexagon::ps_sub_lo || GenIdx == Hexagon::ps_sub_hi);

  static const unsigned ISub[] = { Hexagon::isub_lo, Hexagon::isub_hi };
  static const unsigned VSub[] = { Hexagon::vsub_lo, Hexagon::vsub_hi };

  switch (RC.getID()) {
    case Hexagon::CtrRegs64RegClassID:
    case Hexagon::DoubleRegsRegClassID:
      return ISub[GenIdx];
    case Hexagon::HvxWRRegClassID:
      return VSub[GenIdx];
  }

  if (const TargetRegisterClass *SuperRC = *RC.getSuperClasses())
    return getHexagonSubRegIndex(*SuperRC, GenIdx);

  llvm_unreachable("Invalid register class");
}