21   ZoneVector<RpoNumber>& result;
22   ZoneStack<RpoNumber>& stack;
25   void PushIfUnvisited(RpoNumber num) {  in PushIfUnvisited()
31   void Forward(RpoNumber to) {  in Forward()
32     RpoNumber from = stack.top();  in Forward()
33     RpoNumber to_to = result[to.ToInt()];  in Forward()
54   RpoNumber unvisited() { return RpoNumber::FromInt(-1); }  in unvisited()
55   RpoNumber onstack() { return RpoNumber::FromInt(-2); }  in onstack()
61   RpoNumber pred_rpo = (block->predecessors())[0];  in IsBlockWithBranchPoisoning()
72                                       ZoneVector<RpoNumber>& result,  in ComputeForwarding()
75   ZoneStack<RpoNumber> stack(local_zone);  in ComputeForwarding()
81     RpoNumber current = block->rpo_number();  in ComputeForwarding()
90       RpoNumber fw = block->rpo_number();  in ComputeForwarding()
130             fw = RpoNumber::FromInt(next);  in ComputeForwarding()
138   for (RpoNumber num : result) {  in ComputeForwarding()
159                                     ZoneVector<RpoNumber>& result,  in ApplyForwarding()
194       RpoNumber rpo = constant.ToRpoNumber();  in ApplyForwarding()
195       RpoNumber fw = result[rpo.ToInt()];  in ApplyForwarding()
204       block->set_ao_number(RpoNumber::FromInt(ao));  in ApplyForwarding()
210       block->set_ao_number(RpoNumber::FromInt(ao));  in ApplyForwarding()