+ir_graph *new_r_ir_graph(ir_entity *ent, int n_loc) {
+ ir_graph *res;
+ ir_node *first_block;
+ ir_node *end, *start, *start_block, *initial_mem, *projX;
+
+ res = alloc_graph();
+ res->kind = k_ir_graph;
+
+ //edges_init_graph_kind(res, EDGE_KIND_NORMAL);
+ //edges_init_graph_kind(res, EDGE_KIND_BLOCK);
+
+ /* initialize the idx->node map. */
+ res->idx_irn_map = NEW_ARR_F(ir_node *, INITIAL_IDX_IRN_MAP_SIZE);
+ memset(res->idx_irn_map, 0, INITIAL_IDX_IRN_MAP_SIZE * sizeof(res->idx_irn_map[0]));
+
+ /* inform statistics here, as blocks will be already build on this graph */
+ hook_new_graph(res, ent);
+
+ current_ir_graph = res;
+
+ /*-- initialized for each graph. --*/
+ if (get_opt_precise_exc_context()) {
+ res->n_loc = n_loc + 1 + 1; /* number of local variables that are never
+ dereferenced in this graph plus one for
+ the store plus one for links to fragile
+ operations. n_loc is not the number of
+ parameters to the procedure! */
+ } else {
+ res->n_loc = n_loc + 1; /* number of local variables that are never
+ dereferenced in this graph plus one for
+ the store. This is not the number of parameters
+ to the procedure! */
+ }
+
+ /* descriptions will be allocated on demand */
+ res->loc_descriptions = NULL;
+
+ res->visited = 0; /* visited flag, for the ir walker */
+ res->block_visited = 0; /* visited flag, for the 'block'-walker */
+
+#if USE_EXPLICIT_PHI_IN_STACK
+ res->Phi_in_stack = new_Phi_in_stack(); /* A stack needed for automatic Phi
+ generation */
+#endif
+ res->kind = k_ir_graph;
+ res->obst = xmalloc (sizeof(*res->obst));
+ obstack_init(res->obst);
+ res->extbb_obst = NULL;
+
+ res->last_node_idx = 0;
+
+ res->value_table = new_identities (); /* value table for global value
+ numbering for optimizing use in iropt.c */
+ res->outs = NULL;
+
+ res->inline_property = irg_inline_any;
+ res->additional_properties = mtp_property_inherited; /* inherited from type */
+
+ res->phase_state = phase_building;
+ res->irg_pinned_state = op_pin_state_pinned;
+ res->outs_state = outs_none;
+ res->dom_state = dom_none;
+ res->pdom_state = dom_none;
+ res->typeinfo_state = ir_typeinfo_none;
+ set_irp_typeinfo_inconsistent(); /* there is a new graph with typeinfo_none. */
+ res->callee_info_state = irg_callee_info_none;
+ res->loopinfo_state = loopinfo_none;
+ res->class_cast_state = ir_class_casts_transitive;
+ res->extblk_state = ir_extblk_info_none;
+ res->execfreq_state = exec_freq_none;
+ res->fp_model = fp_model_precise;
+ res->adr_taken_state = ir_address_taken_not_computed;
+ res->mem_disambig_opt = aa_opt_inherited;
+
+ /*-- Type information for the procedure of the graph --*/
+ res->ent = ent;
+ set_entity_irg(ent, res);
+
+ /*-- a class type so that it can contain "inner" methods as in Pascal. --*/
+ res->frame_type = new_type_frame(mangle(get_entity_ident(ent), frame_type_suffix));
+
+ /* the Anchor node must be created first */
+ res->anchor = new_Anchor(res);
+
+ /*-- Nodes needed in every graph --*/
+ set_irg_end_block (res, new_immBlock());
+ end = new_End();
+ set_irg_end (res, end);
+ set_irg_end_reg (res, end);
+ set_irg_end_except(res, end);
+
+ start_block = new_immBlock();
+ set_irg_start_block(res, start_block);
+ set_irg_bad (res, new_ir_node(NULL, res, start_block, op_Bad, mode_T, 0, NULL));
+ set_irg_no_mem (res, new_ir_node(NULL, res, start_block, op_NoMem, mode_M, 0, NULL));
+ start = new_Start();
+ set_irg_start (res, start);
+
+ /* Proj results of start node */
+ projX = new_Proj(start, mode_X, pn_Start_X_initial_exec);
+ set_irg_frame (res, new_Proj(start, mode_P_data, pn_Start_P_frame_base));
+ set_irg_globals (res, new_Proj(start, mode_P_data, pn_Start_P_globals));
+ set_irg_tls (res, new_Proj(start, mode_P_data, pn_Start_P_tls));
+ set_irg_args (res, new_Proj(start, mode_T, pn_Start_T_args));
+ set_irg_value_param_base(res, new_Proj(start, mode_P_data, pn_Start_P_value_arg_base));
+ initial_mem = new_Proj(start, mode_M, pn_Start_M);
+ set_irg_initial_mem(res, initial_mem);
+
+ add_immBlock_pred(start_block, projX);
+ set_store(initial_mem);
+
+#ifdef DEBUG_libfirm
+ res->graph_nr = get_irp_new_node_nr();