628   edge_iterator current_edge;  in haifa_find_rgns()  local
672   current_edge = ei_start (single_succ (ENTRY_BLOCK_PTR_FOR_FN (cfun))->succs);  in haifa_find_rgns()
677       if (EDGE_PASSED (current_edge))  in haifa_find_rgns()
682 	  while (sp >= 0 && EDGE_PASSED (current_edge))  in haifa_find_rgns()
685 	      current_edge = stack[sp--];  in haifa_find_rgns()
686 	      node = ei_edge (current_edge)->src->index;  in haifa_find_rgns()
688 	      child = ei_edge (current_edge)->dest->index;  in haifa_find_rgns()
693 	      ei_next (&current_edge);  in haifa_find_rgns()
697 	  if (sp < 0 && EDGE_PASSED (current_edge))  in haifa_find_rgns()
705       node = ei_edge (current_edge)->src->index;  in haifa_find_rgns()
711       child = ei_edge (current_edge)->dest->index;  in haifa_find_rgns()
714 	  SET_EDGE_PASSED (current_edge);  in haifa_find_rgns()
715 	  ei_next (&current_edge);  in haifa_find_rgns()
727 	  SET_EDGE_PASSED (current_edge);  in haifa_find_rgns()
728 	  ei_next (&current_edge);  in haifa_find_rgns()
739 	  SET_EDGE_PASSED (current_edge);  in haifa_find_rgns()
740 	  ei_next (&current_edge);  in haifa_find_rgns()
745       stack[++sp] = current_edge;  in haifa_find_rgns()
746       SET_EDGE_PASSED (current_edge);  in haifa_find_rgns()
747       current_edge = ei_start (ei_edge (current_edge)->dest->succs);  in haifa_find_rgns()