67   for (BasicBlock *BB : depth_first_ext(&F, Reachable))  in runOnFunction()
68     (void)BB/* Mark all reachable blocks */;  in runOnFunction()
75       BasicBlock *BB = &*I;  in runOnFunction()  local
76       DeadBlocks.push_back(BB);  in runOnFunction()
77       while (PHINode *PN = dyn_cast<PHINode>(BB->begin())) {  in runOnFunction()
79         BB->getInstList().pop_front();  in runOnFunction()
81       for (succ_iterator SI = succ_begin(BB), E = succ_end(BB); SI != E; ++SI)  in runOnFunction()
82         (*SI)->removePredecessor(BB);  in runOnFunction()
83       BB->dropAllReferences();  in runOnFunction()
127   for (MachineBasicBlock *BB : depth_first_ext(&F, Reachable))  in runOnMachineFunction()
128     (void)BB/* Mark all reachable blocks */;  in runOnMachineFunction()
134     MachineBasicBlock *BB = &*I;  in runOnMachineFunction()  local
137     if (!Reachable.count(BB)) {  in runOnMachineFunction()
138       DeadBlocks.push_back(BB);  in runOnMachineFunction()
141       if (MLI) MLI->removeBlock(BB);  in runOnMachineFunction()
142       if (MDT && MDT->getNode(BB)) MDT->eraseNode(BB);  in runOnMachineFunction()
144       while (BB->succ_begin() != BB->succ_end()) {  in runOnMachineFunction()
145         MachineBasicBlock* succ = *BB->succ_begin();  in runOnMachineFunction()
151                 start->getOperand(i).getMBB() == BB) {  in runOnMachineFunction()
159         BB->removeSuccessor(BB->succ_begin());  in runOnMachineFunction()
170     MachineBasicBlock *BB = &*I;  in runOnMachineFunction()  local
172     SmallPtrSet<MachineBasicBlock*, 8> preds(BB->pred_begin(),  in runOnMachineFunction()
173                                              BB->pred_end());  in runOnMachineFunction()
174     MachineBasicBlock::iterator phi = BB->begin();  in runOnMachineFunction()
175     while (phi != BB->end() && phi->isPHI()) {  in runOnMachineFunction()