82   BasicBlock::iterator BBI = I, BBE = BB->end();  in changeToUnreachable()  local
83   while (BBI != BBE) {  in changeToUnreachable()
84     if (!BBI->use_empty())  in changeToUnreachable()
85       BBI->replaceAllUsesWith(UndefValue::get(BBI->getType()));  in changeToUnreachable()
86     BB->getInstList().erase(BBI++);  in changeToUnreachable()
123     for (BasicBlock::iterator BBI = BB->begin(), E = BB->end(); BBI != E;++BBI){  in markAliveBlocks()  local
124       if (CallInst *CI = dyn_cast<CallInst>(BBI)) {  in markAliveBlocks()
129           ++BBI;  in markAliveBlocks()
130           if (!isa<UnreachableInst>(BBI)) {  in markAliveBlocks()
132             changeToUnreachable(BBI, false);  in markAliveBlocks()
142       if (StoreInst *SI = dyn_cast<StoreInst>(BBI)) {  in markAliveBlocks()
226   for (Function::iterator BBI = F.begin(), E = F.end(); BBI != E; ) {  in mergeEmptyReturnBlocks()  local
227     BasicBlock &BB = *BBI++;  in mergeEmptyReturnBlocks()