446     MachineBasicBlock &opBlock = *MPhi->getOperand(i*2+2).getMBB();  in LowerPHINode()  local
451     if (!MBBsInsertedInto.insert(&opBlock).second)  in LowerPHINode()
470       findPHICopyInsertPoint(&opBlock, &MBB, SrcReg);  in LowerPHINode()
479         NewSrcInstr = BuildMI(opBlock, InsertPos, MPhi->getDebugLoc(),  in LowerPHINode()
490         NewSrcInstr = TII->createPHISourceCopy(opBlock, InsertPos, nullptr,  in LowerPHINode()
499         !VRegPHIUseCount[BBVRegPair(opBlock.getNumber(), SrcReg)] &&  in LowerPHINode()
500         !LV->isLiveOut(SrcReg, opBlock)) {  in LowerPHINode()
517       MachineBasicBlock::iterator KillInst = opBlock.end();  in LowerPHINode()
518       MachineBasicBlock::iterator FirstTerm = opBlock.getFirstTerminator();  in LowerPHINode()
520           Term != opBlock.end(); ++Term) {  in LowerPHINode()
525       if (KillInst == opBlock.end()) {  in LowerPHINode()
531           while (KillInst != opBlock.begin()) {  in LowerPHINode()
549       unsigned opBlockNum = opBlock.getNumber();  in LowerPHINode()
560           !VRegPHIUseCount[BBVRegPair(opBlock.getNumber(), SrcReg)]) {  in LowerPHINode()
564         for (MachineBasicBlock *Succ : opBlock.successors()) {  in LowerPHINode()
576           MachineBasicBlock::iterator KillInst = opBlock.end();  in LowerPHINode()
577           MachineBasicBlock::iterator FirstTerm = opBlock.getFirstTerminator();  in LowerPHINode()
579               Term != opBlock.end(); ++Term) {  in LowerPHINode()
584           if (KillInst == opBlock.end()) {  in LowerPHINode()
590               while (KillInst != opBlock.begin()) {  in LowerPHINode()
607                               LIS->getMBBEndIdx(&opBlock));  in LowerPHINode()