127   unsigned BN = MBB.getNumber();  in isDefOnEntry()  local
128   if (DefOnEntry[BN])  in isDefOnEntry()
130   if (UndefOnEntry[BN])  in isDefOnEntry()
133   auto MarkDefined = [BN, &DefOnEntry](MachineBasicBlock &B) -> bool {  in isDefOnEntry()
136     DefOnEntry[BN] = true;  in isDefOnEntry()
190   UndefOnEntry[BN] = true;  in isDefOnEntry()
285     for (unsigned BN : WorkList) {  in findReachingDefs()  local
287       std::tie(Start, End) = Indexes->getMBBRange(BN);  in findReachingDefs()
289       if (BN == UseMBBNum && Use.isValid())  in findReachingDefs()
292         Map[MF->getBlockNumbered(BN)] = LiveOutPair(TheVNI, nullptr);  in findReachingDefs()
315   for (unsigned BN : WorkList) {  in findReachingDefs()  local
316     MachineBasicBlock *MBB = MF->getBlockNumbered(BN);  in findReachingDefs()
446     unsigned BN = PredQueue[i];  in isJointlyDominated()  local
447     if (DefBlocks[BN])  in isJointlyDominated()
449     const MachineBasicBlock *B = MF.getBlockNumbered(BN);  in isJointlyDominated()