962   ContextNode *PrevNode = AllocNode;  in addStackNodesForMIB()  local
984     PrevNode->addOrUpdateCallerEdge(StackNode, AllocType, LastContextId);  in addStackNodesForMIB()
985     PrevNode = StackNode;  in addStackNodesForMIB()
1178     ContextNode *PrevNode = nullptr;  in assignStackNodesPostOrder()  local
1185       if (!PrevNode) {  in assignStackNodesPostOrder()
1186         PrevNode = CurNode;  in assignStackNodesPostOrder()
1189       auto *Edge = CurNode->findEdgeFromCallee(PrevNode);  in assignStackNodesPostOrder()
1194       PrevNode = CurNode;  in assignStackNodesPostOrder()
1225     PrevNode = nullptr;  in assignStackNodesPostOrder()
1234       if (PrevNode) {  in assignStackNodesPostOrder()
1235         auto *PrevEdge = CurNode->findEdgeFromCallee(PrevNode);  in assignStackNodesPostOrder()
1239           PrevNode->eraseCallerEdge(PrevEdge);  in assignStackNodesPostOrder()
1243       PrevNode = CurNode;  in assignStackNodesPostOrder()
1332       ContextNode *PrevNode = LastNode;  in updateStackNodes()  local
1349         auto *Edge = CurNode->findEdgeFromCaller(PrevNode);  in updateStackNodes()
1363         PrevNode = CurNode;  in updateStackNodes()