2366   } while(stack.is_nonempty());

  2366   } while(stack.is_nonempty());

  2367 

  2367 

  2368   // Iterate over CFG nodes in rpo and propagate memory state to

  2368   // Iterate over CFG nodes in rpo and propagate memory state to

  2369   // compute memory state at regions, creating new phis if needed.

  2369   // compute memory state at regions, creating new phis if needed.

  2370   Node_List rpo_list;

  2370   Node_List rpo_list;

  2372   _phase->rpo(_phase->C->root(), stack, visited, rpo_list);

  2372   _phase->rpo(_phase->C->root(), stack, visited, rpo_list);

  2373   Node* root = rpo_list.pop();

  2373   Node* root = rpo_list.pop();

  2374   assert(root == _phase->C->root(), "");

  2374   assert(root == _phase->C->root(), "");

  2375 

  2375 

  2376   const bool trace = false;

  2376   const bool trace = false;