36   const BasicBlock *BB = &F.getEntryBlock();  in FindFunctionBackedges()  local
37   if (succ_empty(BB))  in FindFunctionBackedges()
44   Visited.insert(BB);  in FindFunctionBackedges()
45   VisitStack.push_back(std::make_pair(BB, succ_begin(BB)));  in FindFunctionBackedges()
46   InStack.insert(BB);  in FindFunctionBackedges()
54       BB = *I++;  in FindFunctionBackedges()
55       if (Visited.insert(BB).second) {  in FindFunctionBackedges()
60       if (InStack.count(BB))  in FindFunctionBackedges()
61         Result.push_back(std::make_pair(ParentBB, BB));  in FindFunctionBackedges()
66       InStack.insert(BB);  in FindFunctionBackedges()
67       VisitStack.push_back(std::make_pair(BB, succ_begin(BB)));  in FindFunctionBackedges()
75 /// GetSuccessorNumber - Search for the specified successor of basic block BB
79 unsigned llvm::GetSuccessorNumber(const BasicBlock *BB,  in GetSuccessorNumber()  argument
81   const Instruction *Term = BB->getTerminator();  in GetSuccessorNumber()
127 // the outermost loop in the loop nest that contains BB.
128 static const Loop *getOutermostLoop(const LoopInfo *LI, const BasicBlock *BB) {  in getOutermostLoop()  argument
129   const Loop *L = LI->getLoopFor(BB);  in getOutermostLoop()
141     for (auto *BB : StopSet) {  in isReachableImpl()  local
142       if (!DT->isReachableFromEntry(BB)) {  in isReachableImpl()
159     for (auto *BB : *ExclusionSet) {  in isReachableImpl()
160       if (const Loop *L = getOutermostLoop(LI, BB))  in isReachableImpl()
176     BasicBlock *BB = Worklist.pop_back_val();  in isReachableImpl()  local
177     if (!Visited.insert(BB).second)  in isReachableImpl()
179     if (StopSet.contains(BB))  in isReachableImpl()
181     if (ExclusionSet && ExclusionSet->count(BB))  in isReachableImpl()
185             return DT->dominates(BB, StopBB);  in isReachableImpl()
192       Outer = getOutermostLoop(LI, BB);  in isReachableImpl()
196       // excluded block. Clear Outer so we process BB's successors.  in isReachableImpl()
215       Worklist.append(succ_begin(BB), succ_end(BB));  in isReachableImpl()
294     BasicBlock *BB = const_cast<BasicBlock *>(A->getParent());  in isPotentiallyReachable()  local
298     if (LI && LI->getLoopFor(BB) != nullptr)  in isPotentiallyReachable()
307     if (BB->isEntryBlock())  in isPotentiallyReachable()
310     // Otherwise, continue doing the normal per-BB CFG walk.  in isPotentiallyReachable()
312     Worklist.append(succ_begin(BB), succ_end(BB));  in isPotentiallyReachable()