146     struct DFSState {  in RunCFGIsDAGCheck()  struct
147         GateRef cur;  in RunCFGIsDAGCheck()
148         GateAccessor::ConstUseWrapper uses;  in RunCFGIsDAGCheck()
149         GateAccessor::ConstUseIterator use;  in RunCFGIsDAGCheck()
299     struct DFSState {  in RunFlowCyclesFind()  struct
300         GateRef cur;  in RunFlowCyclesFind()
301         size_t numIns;  in RunFlowCyclesFind()
302         size_t idx;  in RunFlowCyclesFind()
520         struct DFSState {  in Run()  struct
521             size_t cur;  in Run()
522             std::vector<size_t> &succList;  in Run()
523             size_t idx;  in Run()