95   FOR_EACH_EDGE (e, ei, loop->header->preds)  in get_loop_latch_edges()
97       if (dominated_by_p (CDI_DOMINATORS, e->src, loop->header))  in get_loop_latch_edges()
117   if (! loop || ! loop->header)  in flow_loop_dump()
122   fprintf (file, ";;  header %d, ", loop->header->index);  in flow_loop_dump()
232 flow_loop_nodes_find (basic_block header, struct loop *loop)  in flow_loop_nodes_find()  argument
239   header->loop_father = loop;  in flow_loop_nodes_find()
241   FOR_EACH_EDGE (latch, latch_ei, loop->header->preds)  in flow_loop_nodes_find()
244             || !dominated_by_p (CDI_DOMINATORS, latch->src, loop->header))  in flow_loop_nodes_find()
377   root->header = ENTRY_BLOCK_PTR_FOR_FN (fn);  in init_loops_structure()
388 bb_loop_header_p (basic_block header)  in bb_loop_header_p()  argument
395   if (bb_has_abnormal_pred (header))  in bb_loop_header_p()
403   FOR_EACH_EDGE (e, ei, header->preds)  in bb_loop_header_p()
407             && dominated_by_p (CDI_DOMINATORS, latch, header))  in bb_loop_header_p()
460       basic_block header = BASIC_BLOCK_FOR_FN (cfun, rc_order[b]);  in flow_loops_find()  local
461       if (bb_loop_header_p (header))  in flow_loops_find()
468                 && header->loop_father->header == header)  in flow_loops_find()
470                 loop = header->loop_father;  in flow_loops_find()
483                 loop->header = header;  in flow_loops_find()
489                                loop->num, header->index);  in flow_loops_find()
497       header->loop_father = loops->tree_root;  in flow_loops_find()
507       basic_block header = loop->header;  in flow_loops_find()  local
511       flow_loop_tree_node_add (header->loop_father, loop);  in flow_loops_find()
512       loop->num_nodes = flow_loop_nodes_find (loop->header, loop);  in flow_loops_find()
516       FOR_EACH_EDGE (e, ei, header->preds)  in flow_loops_find()
544   return (sort_sibling_loops_cmp_rpo[la->header->index]  in sort_sibling_loops_cmp()
545             - sort_sibling_loops_cmp_rpo[lb->header->index]);  in sort_sibling_loops_cmp()
667   for (psi = gsi_start_phis (loop->header); !gsi_end_p (psi); gsi_next (&psi))  in find_subloop_latch_edge_by_ivs()
739   FOR_EACH_EDGE (e, ei, loop->header->preds)  in form_subloop()
744   new_entry = make_forwarder_block (loop->header, mfb_redirect_edges_in_set,  in form_subloop()
748   loop->header = new_entry->src;  in form_subloop()
753   new_loop->header = new_entry->dest;  in form_subloop()
780       latch = make_forwarder_block (loop->header, mfb_redirect_edges_in_set,  in merge_latch_edges()
784       loop->header = latch->dest;  in merge_latch_edges()
818   e = find_edge (ENTRY_BLOCK_PTR_FOR_FN (cfun), loop->header);  in disambiguate_multiple_latches()
867   return (bb != loop->header  in glb_enum_p()
868             && dominated_by_p (CDI_DOMINATORS, bb, loop->header));  in glb_enum_p()
882   return dfs_enumerate_from (loop->header, 1, glb_enum_p,  in get_loop_body_with_size()
905       body[tv++] = loop->header;  in get_loop_body()
963   fill_sons_in_loop (loop, loop->header, tovisit, &tv);  in get_loop_body_in_dom_order()
998   blocks[0] = loop->header;  in get_loop_body_in_bfs_order()
999   bitmap_set_bit (visited, loop->header->index);  in get_loop_body_in_bfs_order()
1399   if (current_loops->tree_root->header != ENTRY_BLOCK_PTR_FOR_FN (cfun)  in verify_loop_structure()
1412           if (bb->loop_father->header == NULL)  in verify_loop_structure()
1417           else if (bb->loop_father->header != bb)  in verify_loop_structure()
1423     else if (bb->loop_father->header == bb)  in verify_loop_structure()
1437       if (loop->header == NULL)  in verify_loop_structure()
1482       if (loop->header == NULL)  in verify_loop_structure()
1484       if (!bb_loop_header_p (loop->header))  in verify_loop_structure()
1490             && EDGE_COUNT (loop->header->preds) != 2)  in verify_loop_structure()
1497             if (!find_edge (loop->latch, loop->header))  in verify_loop_structure()
1502             if (!dominated_by_p (CDI_DOMINATORS, loop->latch, loop->header))  in verify_loop_structure()
1515             if (single_succ (loop->latch) != loop->header)  in verify_loop_structure()
1526       if (loop->header->loop_father != loop)  in verify_loop_structure()
1718   return find_edge (loop->latch, loop->header);  in loop_latch_edge()
1731   FOR_EACH_EDGE (e, ei, loop->header->preds)  in loop_preheader_edge()
1843   FOR_BB_INSNS (loop->header, insn)  in get_loop_location()
1973       if (loop->header->count.reliable_p ())  in get_estimated_loop_iterations()
2067   if (loop->header == NULL)  in mark_loop_for_removal()
2069   loop->former_header = loop->header;  in mark_loop_for_removal()
2070   loop->header = NULL;  in mark_loop_for_removal()