142 static void computeStackPO(BlockStack &Stack, const LoopInfo &LI, Loop *Loop,  in computeStackPO()  argument
145   while (!Stack.empty()) {  in computeStackPO()
146     const auto *NextBB = Stack.back();  in computeStackPO()
164         Stack.push_back(NestedExitBB);  in computeStackPO()
168         Stack.pop_back();  in computeStackPO()
184       Stack.push_back(SuccBB);  in computeStackPO()
188       Stack.pop_back();  in computeStackPO()
198   BlockStack Stack;  in computeTopLevelPO()  local
199   Stack.reserve(24); // FIXME made-up number  in computeTopLevelPO()
200   Stack.push_back(&F.getEntryBlock());  in computeTopLevelPO()
201   computeStackPO(Stack, LI, nullptr, CallBack, Finalized);  in computeTopLevelPO()
207   std::vector<const BasicBlock *> Stack;  in computeLoopPO()  local
220     Stack.push_back(BB);  in computeLoopPO()
224   computeStackPO(Stack, LI, &Loop, CallBack, Finalized);  in computeLoopPO()