344   std::map<unsigned, Chain*> ActiveChains;  in runOnBasicBlock()  local
348     scanInstruction(&MI, Idx++, ActiveChains, AllChains);  in runOnBasicBlock()
616     MachineInstr *MI, unsigned Idx, std::map<unsigned, Chain *> &ActiveChains,  in scanInstruction()  argument
623       maybeKillChain(I, Idx, ActiveChains);  in scanInstruction()
625       maybeKillChain(I, Idx, ActiveChains);  in scanInstruction()
635     ActiveChains[DestReg] = G.get();  in scanInstruction()
645     maybeKillChain(MI->getOperand(1), Idx, ActiveChains);  in scanInstruction()
646     maybeKillChain(MI->getOperand(2), Idx, ActiveChains);  in scanInstruction()
648       maybeKillChain(MI->getOperand(0), Idx, ActiveChains);  in scanInstruction()
650     if (ActiveChains.find(AccumReg) != ActiveChains.end()) {  in scanInstruction()
662         ActiveChains[AccumReg]->add(MI, Idx, getColor(DestReg));  in scanInstruction()
665           ActiveChains[DestReg] = ActiveChains[AccumReg];  in scanInstruction()
666           ActiveChains.erase(AccumReg);  in scanInstruction()
673       maybeKillChain(MI->getOperand(3), Idx, ActiveChains);  in scanInstruction()
679     ActiveChains[DestReg] = G.get();  in scanInstruction()
687       maybeKillChain(I, Idx, ActiveChains);  in scanInstruction()
689       maybeKillChain(I, Idx, ActiveChains);  in scanInstruction()
696                std::map<unsigned, Chain*> &ActiveChains) {  in maybeKillChain()  argument
704     if (MO.isKill() && ActiveChains.find(MO.getReg()) != ActiveChains.end()) {  in maybeKillChain()
707       ActiveChains[MO.getReg()]->setKill(MI, Idx, /*Immutable=*/MO.isTied());  in maybeKillChain()
709     ActiveChains.erase(MO.getReg());  in maybeKillChain()
713     for (auto I = ActiveChains.begin(), E = ActiveChains.end();  in maybeKillChain()
719         ActiveChains.erase(I++);  in maybeKillChain()