26     if (result[num.ToInt()] == unvisited()) {  in PushIfUnvisited()
28       result[num.ToInt()] = onstack();  in PushIfUnvisited()
33     RpoNumber to_to = result[to.ToInt()];  in Forward()
36       TRACE("  xx %d\n", from.ToInt());  in Forward()
37       result[from.ToInt()] = from;  in Forward()
39       TRACE("  fw %d -> %d (recurse)\n", from.ToInt(), to.ToInt());  in Forward()
41       result[to.ToInt()] = onstack();  in Forward()
44       TRACE("  fw %d -> %d (cycle)\n", from.ToInt(), to.ToInt());  in Forward()
45       result[from.ToInt()] = to;  // break the cycle.  in Forward()
48       TRACE("  fw %d -> %d (forward)\n", from.ToInt(), to.ToInt());  in Forward()
49       result[from.ToInt()] = to_to;  // forward the block.  in Forward()
82             block->rpo_number().ToInt());  in ComputeForwarding()
156         int next = 1 + block->rpo_number().ToInt();  in ComputeForwarding()
172       int to = (*result)[i].ToInt();  in ComputeForwarding()
195     int block_num = block_rpo.ToInt();  in ApplyForwarding()
234       RpoNumber fw = result[rpo.ToInt()];  in ApplyForwarding()
244     if (!skip[block->rpo_number().ToInt()]) ao++;  in ApplyForwarding()