lib/CodeGen/TwoAddressInstructionPass.cpp

1200         SmallVector<MachineInstr *, 2> NewMIs;
1203                                       NewMIs)) {
1207         assert(NewMIs.size() == 2 &&
1210         NewMIs[1]->addRegisterKilled(Reg, TRI);
1214         MBB->insert(mi, NewMIs[0]);
1215         MBB->insert(mi, NewMIs[1]);
1217         DEBUG(dbgs() << "2addr:    NEW LOAD: " << *NewMIs[0]
1218                      << "2addr:    NEW INST: " << *NewMIs[1]);
1221         unsigned NewDstIdx = NewMIs[1]->findRegisterDefOperandIdx(regA);
1222         unsigned NewSrcIdx = NewMIs[1]->findRegisterUseOperandIdx(regB);
1223         MachineBasicBlock::iterator NewMI = NewMIs[1];
1229         if (NewMIs[1]->getOperand(NewSrcIdx).isKill()) {
1239                     if (NewMIs[0]->killsRegister(MO.getReg()))
1240                       LV->replaceKillInstruction(MO.getReg(), &MI, NewMIs[0]);
1242                       assert(NewMIs[1]->killsRegister(MO.getReg()) &&
1244                       LV->replaceKillInstruction(MO.getReg(), &MI, NewMIs[1]);
1248                   if (NewMIs[1]->registerDefIsDead(MO.getReg()))
1249                     LV->addVirtualRegisterDead(MO.getReg(), NewMIs[1]);
1251                     assert(NewMIs[0]->registerDefIsDead(MO.getReg()) &&
1253                     LV->addVirtualRegisterDead(MO.getReg(), NewMIs[0]);
1258             LV->addVirtualRegisterKilled(Reg, NewMIs[1]);
1274             MachineBasicBlock::iterator Begin(NewMIs[0]);
1275             MachineBasicBlock::iterator End(NewMIs[1]);
1279           mi = NewMIs[1];
1285           NewMIs[0]->eraseFromParent();
1286           NewMIs[1]->eraseFromParent();