813   for (Node *RootN : Worklist) {  in switchInternalEdgeToRef()
820     if (RootN->DFSNumber != 0) {  in switchInternalEdgeToRef()
821       assert(RootN->DFSNumber == -1 &&  in switchInternalEdgeToRef()
826     RootN->DFSNumber = RootN->LowLink = 1;  in switchInternalEdgeToRef()
829     DFSStack.push_back({RootN, (*RootN)->call_begin()});  in switchInternalEdgeToRef()
1243     Node *RootN = Worklist.pop_back_val();  in removeInternalRefEdge()  local
1245     if (RootN->DFSNumber != 0) {  in removeInternalRefEdge()
1246       assert(RootN->DFSNumber == -1 &&  in removeInternalRefEdge()
1251     RootN->DFSNumber = RootN->LowLink = 1;  in removeInternalRefEdge()
1254     DFSStack.push_back({RootN, (*RootN)->begin()});  in removeInternalRefEdge()
1796   for (Node *RootN : Roots) {  in buildGenericSCCs()
1803     if (RootN->DFSNumber != 0) {  in buildGenericSCCs()
1804       assert(RootN->DFSNumber == -1 &&  in buildGenericSCCs()
1809     RootN->DFSNumber = RootN->LowLink = 1;  in buildGenericSCCs()
1812     DFSStack.push_back({RootN, GetBegin(*RootN)});  in buildGenericSCCs()