lib/CodeGen/TargetInstrInfo.cpp

617                                    SDNode *DefNode, unsigned DefIdx,
627     return ItinData->getOperandCycle(DefClass, DefIdx);
629   return ItinData->getOperandLatency(DefClass, DefIdx, UseClass, UseIdx);
693                                        unsigned DefIdx) const {
698   int DefCycle = ItinData->getOperandCycle(DefClass, DefIdx);
706                   const MachineInstr *DefMI, unsigned DefIdx,
710   return ItinData->getOperandLatency(DefClass, DefIdx, UseClass, UseIdx);
739 /// to call getOperandLatency(). For most subtargets, we don't need DefIdx or
743                       const MachineInstr *DefMI, unsigned DefIdx,
754     OperLatency = getOperandLatency(ItinData, DefMI, DefIdx, UseMI, UseIdx);
757     OperLatency = ItinData->getOperandCycle(DefClass, DefIdx);