1987   class loop *start_loop = NULL, *innermost = loop;  in prepare_perfect_loop_nest()  local
1992   while (loop->num != 0 && loop->inner == start_loop  in prepare_perfect_loop_nest()
1998       start_loop = loop;  in prepare_perfect_loop_nest()
2006   if (!start_loop || !start_loop->inner)  in prepare_perfect_loop_nest()
2011   start_loop = prepare_data_references (start_loop, datarefs);  in prepare_perfect_loop_nest()
2012   if (!start_loop  in prepare_perfect_loop_nest()
2021   start_loop = compute_access_strides (start_loop, innermost, *datarefs);  in prepare_perfect_loop_nest()
2022   if (!start_loop)  in prepare_perfect_loop_nest()
2026   if (!should_interchange_loop_nest (start_loop, innermost, *datarefs))  in prepare_perfect_loop_nest()
2031   loop = start_loop;  in prepare_perfect_loop_nest()
2035     if (loop != start_loop)  in prepare_perfect_loop_nest()
2036       prune_datarefs_not_in_loop (start_loop, *datarefs);  in prepare_perfect_loop_nest()
2038     if (find_loop_nest (start_loop, loop_nest)  in prepare_perfect_loop_nest()
2044 		   start_loop->num, innermost->num);  in prepare_perfect_loop_nest()
2046 	if (loop != start_loop)  in prepare_perfect_loop_nest()
2047 	  prune_access_strides_not_in_loop (start_loop, innermost, *datarefs);  in prepare_perfect_loop_nest()
2058     loop = start_loop;  in prepare_perfect_loop_nest()
2059     start_loop = start_loop->inner;  in prepare_perfect_loop_nest()
2060   } while (start_loop && start_loop->inner);  in prepare_perfect_loop_nest()