1850   block_info *blk;  in solve_flow_graph()  local
1902       blk = &fn->blocks[i];  in solve_flow_graph()
1907       for (arc = blk->succ; arc; arc = arc->succ_next)  in solve_flow_graph()
1917 	      blk->num_succ--;  in solve_flow_graph()
1928 	  for (arc = blk->succ; arc; arc = arc->succ_next)  in solve_flow_graph()
1938 		if (blk->is_call_site && arc->fall_through  in solve_flow_graph()
1950 	  arc_info *start = blk->succ;  in solve_flow_graph()
1978 	  blk->succ = start;  in solve_flow_graph()
1983       blk->invalid_chain = 1;  in solve_flow_graph()
1984       blk->chain = invalid_blocks;  in solve_flow_graph()
1985       invalid_blocks = blk;  in solve_flow_graph()
1990       while ((blk = invalid_blocks))  in solve_flow_graph()
1995 	  invalid_blocks = blk->chain;  in solve_flow_graph()
1996 	  blk->invalid_chain = 0;  in solve_flow_graph()
1997 	  if (!blk->num_succ)  in solve_flow_graph()
1998 	    for (arc = blk->succ; arc; arc = arc->succ_next)  in solve_flow_graph()
2000 	  else if (!blk->num_pred)  in solve_flow_graph()
2001 	    for (arc = blk->pred; arc; arc = arc->pred_next)  in solve_flow_graph()
2006 	  blk->count = total;  in solve_flow_graph()
2007 	  blk->count_valid = 1;  in solve_flow_graph()
2008 	  blk->chain = valid_blocks;  in solve_flow_graph()
2009 	  blk->valid_chain = 1;  in solve_flow_graph()
2010 	  valid_blocks = blk;  in solve_flow_graph()
2012       while ((blk = valid_blocks))  in solve_flow_graph()
2017 	  valid_blocks = blk->chain;  in solve_flow_graph()
2018 	  blk->valid_chain = 0;  in solve_flow_graph()
2019 	  if (blk->num_succ == 1)  in solve_flow_graph()
2023 	      total = blk->count;  in solve_flow_graph()
2025 	      for (arc = blk->succ; arc; arc = arc->succ_next)  in solve_flow_graph()
2034 	      blk->num_succ--;  in solve_flow_graph()
2055 	  if (blk->num_pred == 1)  in solve_flow_graph()
2059 	      total = blk->count;  in solve_flow_graph()
2061 	      for (arc = blk->pred; arc; arc = arc->pred_next)  in solve_flow_graph()
2070 	      blk->num_pred--;  in solve_flow_graph()