324 static bool allPhiOperandsUndefined(const MachineInstr &MPhi,  in allPhiOperandsUndefined()  argument
326   for (unsigned I = 1, E = MPhi.getNumOperands(); I != E; I += 2) {  in allPhiOperandsUndefined()
327     const MachineOperand &MO = MPhi.getOperand(I);  in allPhiOperandsUndefined()
342   MachineInstr *MPhi = MBB.remove(&*MBB.begin());  in LowerPHINode()  local
344   unsigned NumSrcs = (MPhi->getNumOperands() - 1) / 2;  in LowerPHINode()
345   Register DestReg = MPhi->getOperand(0).getReg();  in LowerPHINode()
346   assert(MPhi->getOperand(0).getSubReg() == 0 && "Can't handle sub-reg PHIs");  in LowerPHINode()
347   bool isDead = MPhi->getOperand(0).isDead();  in LowerPHINode()
360   if (allPhiOperandsUndefined(*MPhi, *MRI))  in LowerPHINode()
363     PHICopy = BuildMI(MBB, AfterPHIsIt, MPhi->getDebugLoc(),  in LowerPHINode()
372       Entry = &LoweredPHIs[MPhi];  in LowerPHINode()
379                         << *MPhi);  in LowerPHINode()
391         MBB, AfterPHIsIt, MPhi->getDebugLoc(), IncomingReg, DestReg);  in LowerPHINode()
394   if (MPhi->peekDebugInstrNum()) {  in LowerPHINode()
397     unsigned ID = MPhi->peekDebugInstrNum();  in LowerPHINode()
451     LV->removeVirtualRegistersKilled(*MPhi);  in LowerPHINode()
456       LV->removeVirtualRegisterDead(DestReg, *MPhi);  in LowerPHINode()
524     for (unsigned i = 1; i != MPhi->getNumOperands(); i += 2) {  in LowerPHINode()
525       if (!MPhi->getOperand(i).isUndef()) {  in LowerPHINode()
527             MPhi->getOperand(i + 1).getMBB()->getNumber(),  in LowerPHINode()
528             MPhi->getOperand(i).getReg())];  in LowerPHINode()
537     Register SrcReg = MPhi->getOperand(i * 2 + 1).getReg();  in LowerPHINode()
538     unsigned SrcSubReg = MPhi->getOperand(i * 2 + 1).getSubReg();  in LowerPHINode()
539     bool SrcUndef = MPhi->getOperand(i * 2 + 1).isUndef() ||  in LowerPHINode()
546     MachineBasicBlock &opBlock = *MPhi->getOperand(i * 2 + 2).getMBB();  in LowerPHINode()
589             BuildMI(opBlock, InsertPos, MPhi->getDebugLoc(),  in LowerPHINode()
728       LIS->RemoveMachineInstrFromMaps(*MPhi);  in LowerPHINode()
729     MF.deleteMachineInstr(MPhi);  in LowerPHINode()