+typedef struct compound_graph_path_entry_t compound_graph_path_entry_t;
+
+enum compound_graph_entry_type_t {
+ COMPOUND_GRAPH_ENTRY_ARRAY,
+ COMPOUND_GRAPH_ENTRY_COMPOUND
+};
+
+struct compound_graph_path_entry_t {
+ int type;
+ union {
+ ir_entity *entity;
+ int array_index;
+ } v;
+ compound_graph_path_entry_t *prev;
+};
+
+static void create_initializer_object(initializer_t *initializer, type_t *type,
+ ir_entity *entity, compound_graph_path_entry_t *entry, int len);
+
+static compound_graph_path *create_compound_path(ir_type *type,
+ compound_graph_path_entry_t *entry, int len)
+{
+ compound_graph_path *path = new_compound_graph_path(type, len);
+
+ int i = len - 1;
+ for( ; entry != NULL; entry = entry->prev, --i) {
+ assert(i >= 0);
+ if(entry->type == COMPOUND_GRAPH_ENTRY_COMPOUND) {
+ set_compound_graph_path_node(path, i, entry->v.entity);
+ } else {
+ assert(entry->type == COMPOUND_GRAPH_ENTRY_ARRAY);
+ set_compound_graph_path_array_index(path, i, entry->v.array_index);
+ }
+ }
+ assert(i == -1);
+
+ return path;
+}
+
+static void create_initializer_value(initializer_value_t *initializer,
+ ir_entity *entity,
+ compound_graph_path_entry_t *entry,
+ int len)
+{
+ ir_node *node = expression_to_firm(initializer->value);
+ ir_type *type = get_entity_type(entity);
+ compound_graph_path *path = create_compound_path(type, entry, len);
+ add_compound_ent_value_w_path(entity, node, path);
+}
+
+static void create_initializer_compound(initializer_list_t *initializer,
+ compound_type_t *type,
+ ir_entity *entity,
+ compound_graph_path_entry_t *last_entry,
+ int len)
+{
+ declaration_t *compound_declaration = type->declaration;
+
+ declaration_t *compound_entry = compound_declaration->context.declarations;
+
+ compound_graph_path_entry_t entry;
+ entry.type = COMPOUND_GRAPH_ENTRY_COMPOUND;
+ entry.prev = last_entry;
+ ++len;
+
+ size_t i = 0;
+ for( ; compound_entry != NULL; compound_entry = compound_entry->next) {
+ if(compound_entry->symbol == NULL)
+ continue;
+ if(compound_entry->namespc != NAMESPACE_NORMAL)
+ continue;
+
+ if(i >= initializer->len)
+ break;
+
+ entry.v.entity = compound_entry->v.entity;
+
+ initializer_t *sub_initializer = initializer->initializers[i];
+
+ assert(compound_entry != NULL);
+ assert(compound_entry->declaration_kind
+ == DECLARATION_KIND_COMPOUND_MEMBER);
+
+ if(sub_initializer->kind == INITIALIZER_VALUE) {
+ create_initializer_value(&sub_initializer->value,
+ entity, &entry, len);
+ } else {
+ type_t *entry_type = skip_typeref(compound_entry->type);
+ create_initializer_object(sub_initializer, entry_type, entity,
+ &entry, len);
+ }
+
+ ++i;
+ }
+}
+
+static void create_initializer_array(initializer_list_t *initializer,
+ array_type_t *type, ir_entity *entity,
+ compound_graph_path_entry_t *last_entry,
+ int len)
+{
+ type_t *element_type = type->element_type;
+ element_type = skip_typeref(element_type);
+
+ compound_graph_path_entry_t entry;
+ entry.type = COMPOUND_GRAPH_ENTRY_ARRAY;
+ entry.prev = last_entry;
+ ++len;
+
+ size_t i;
+ for(i = 0; i < initializer->len; ++i) {
+ entry.v.array_index = i;
+
+ initializer_t *sub_initializer = initializer->initializers[i];
+
+ if(sub_initializer->kind == INITIALIZER_VALUE) {
+ create_initializer_value(&sub_initializer->value,
+ entity, &entry, len);
+ } else {
+ create_initializer_object(sub_initializer, element_type, entity,
+ &entry, len);
+ }
+ }
+
+#if 0
+ /* TODO: initialize rest... */
+ if(type->size_expression != NULL) {
+ size_t array_len = fold_constant(type->size_expression);
+ for( ; i < array_len; ++i) {
+
+ }
+ }
+#endif
+}
+
+static void create_initializer_string(initializer_string_t *initializer,
+ array_type_t *type, ir_entity *entity,
+ compound_graph_path_entry_t *last_entry,
+ int len)
+{
+ type_t *element_type = type->element_type;
+ element_type = skip_typeref(element_type);
+
+ compound_graph_path_entry_t entry;
+ entry.type = COMPOUND_GRAPH_ENTRY_ARRAY;
+ entry.prev = last_entry;
+ ++len;
+
+ ir_type *const irtype = get_entity_type(entity);
+ size_t arr_len = get_array_type_size(type);
+ const char *const p = initializer->string.begin;
+ if (initializer->string.size < arr_len) {
+ arr_len = initializer->string.size;
+ }
+ for (size_t i = 0; i < arr_len; ++i) {
+ entry.v.array_index = i;
+
+ ir_node *node = new_Const_long(mode_Bs, p[i]);
+ compound_graph_path *path = create_compound_path(irtype, &entry, len);
+ add_compound_ent_value_w_path(entity, node, path);
+ }
+}
+
+static void create_initializer_wide_string(
+ const initializer_wide_string_t *const initializer, array_type_t *const type,
+ ir_entity *const entity, compound_graph_path_entry_t *const last_entry,
+ int len)
+{
+ type_t *element_type = type->element_type;
+ element_type = skip_typeref(element_type);
+
+ compound_graph_path_entry_t entry;
+ entry.type = COMPOUND_GRAPH_ENTRY_ARRAY;
+ entry.prev = last_entry;
+ ++len;
+
+ ir_type *const irtype = get_entity_type(entity);
+ const size_t arr_len = get_array_type_size(type);
+ const wchar_rep_t * p = initializer->string.begin;
+ const wchar_rep_t *const end = p + initializer->string.size;
+ for (size_t i = 0; i < arr_len && p != end; ++i, ++p) {
+ entry.v.array_index = i;
+
+ ir_node *node = new_Const_long(mode_int, *p);
+ compound_graph_path *path = create_compound_path(irtype, &entry, len);
+ add_compound_ent_value_w_path(entity, node, path);
+ }
+}
+
+static void create_initializer_object(initializer_t *initializer, type_t *type,
+ ir_entity *entity, compound_graph_path_entry_t *entry, int len)
+{
+ if(is_type_array(type)) {
+ array_type_t *array_type = &type->array;
+
+ switch (initializer->kind) {
+ case INITIALIZER_STRING: {
+ initializer_string_t *const string = &initializer->string;
+ create_initializer_string(string, array_type, entity, entry, len);
+ return;
+ }
+
+ case INITIALIZER_WIDE_STRING: {
+ initializer_wide_string_t *const string = &initializer->wide_string;
+ create_initializer_wide_string(string, array_type, entity, entry, len);
+ return;
+ }
+
+ case INITIALIZER_LIST: {
+ initializer_list_t *const list = &initializer->list;
+ create_initializer_array(list, array_type, entity, entry, len);
+ return;
+ }
+
+ case INITIALIZER_VALUE:
+ break;
+ }
+ panic("Unhandled initializer");
+ } else {
+ assert(initializer->kind == INITIALIZER_LIST);
+ initializer_list_t *list = &initializer->list;
+
+ assert(is_type_compound(type));
+ compound_type_t *compound_type = &type->compound;
+ create_initializer_compound(list, compound_type, entity, entry, len);
+ }
+}
+
+static void create_initializer_local_variable_entity(declaration_t *declaration)
+{
+ initializer_t *initializer = declaration->init.initializer;
+ dbg_info *dbgi = get_dbg_info(&declaration->source_position);
+ ir_entity *entity = declaration->v.entity;
+ ir_node *memory = get_store();
+ ir_node *nomem = new_NoMem();
+ ir_node *frame = get_irg_frame(current_ir_graph);
+ ir_node *addr = new_d_simpleSel(dbgi, nomem, frame, entity);
+
+ if(initializer->kind == INITIALIZER_VALUE) {
+ initializer_value_t *initializer_value = &initializer->value;
+
+ ir_node *value = expression_to_firm(initializer_value->value);
+ type_t *type = skip_typeref(declaration->type);
+ assign_value(dbgi, addr, type, value);
+ return;
+ }
+
+ /* create a "template" entity which is copied to the entity on the stack */
+ ident *const id = unique_ident("initializer");
+ ir_type *const irtype = get_ir_type(declaration->type);
+ ir_type *const global_type = get_glob_type();
+ ir_entity *const init_entity = new_d_entity(global_type, id, irtype, dbgi);
+ set_entity_ld_ident(init_entity, id);
+
+ set_entity_variability(init_entity, variability_initialized);
+ set_entity_visibility(init_entity, visibility_local);
+ set_entity_allocation(init_entity, allocation_static);
+
+ ir_graph *const old_current_ir_graph = current_ir_graph;
+ current_ir_graph = get_const_code_irg();
+
+ type_t *const type = skip_typeref(declaration->type);
+ create_initializer_object(initializer, type, init_entity, NULL, 0);
+
+ assert(current_ir_graph == get_const_code_irg());
+ current_ir_graph = old_current_ir_graph;
+
+ ir_node *const src_addr = create_symconst(dbgi, mode_P_data, init_entity);
+ ir_node *const copyb = new_d_CopyB(dbgi, memory, addr, src_addr, irtype);
+
+ ir_node *const copyb_mem = new_Proj(copyb, mode_M, pn_CopyB_M_regular);
+ set_store(copyb_mem);
+}
+
+static void create_initializer(declaration_t *declaration)
+{
+ initializer_t *initializer = declaration->init.initializer;
+ if(initializer == NULL)
+ return;
+
+ declaration_kind_t declaration_kind
+ = (declaration_kind_t) declaration->declaration_kind;
+ if(declaration_kind == DECLARATION_KIND_LOCAL_VARIABLE_ENTITY) {
+ create_initializer_local_variable_entity(declaration);
+ return;
+ }
+
+ if(initializer->kind == INITIALIZER_VALUE) {
+ initializer_value_t *initializer_value = &initializer->value;
+
+ ir_node *value = expression_to_firm(initializer_value->value);
+
+ if(declaration_kind == DECLARATION_KIND_LOCAL_VARIABLE) {
+ set_value(declaration->v.value_number, value);
+ } else {
+ assert(declaration_kind == DECLARATION_KIND_GLOBAL_VARIABLE);
+
+ ir_entity *entity = declaration->v.entity;
+
+ set_entity_variability(entity, variability_initialized);
+ set_atomic_ent_value(entity, value);
+ }
+ } else {
+ assert(declaration_kind == DECLARATION_KIND_LOCAL_VARIABLE_ENTITY
+ || declaration_kind == DECLARATION_KIND_GLOBAL_VARIABLE);
+
+ ir_entity *entity = declaration->v.entity;
+ set_entity_variability(entity, variability_initialized);
+
+ type_t *type = skip_typeref(declaration->type);
+ create_initializer_object(initializer, type, entity, NULL, 0);
+ }
+}
+
+/**
+ * Creates a Firm local variable from a declaration.
+ */
+static void create_local_variable(declaration_t *declaration)
+{
+ assert(declaration->declaration_kind == DECLARATION_KIND_UNKNOWN);
+
+ bool needs_entity = declaration->address_taken;
+ type_t *type = skip_typeref(declaration->type);
+
+ if(is_type_array(type) || is_type_compound(type)) {
+ needs_entity = true;
+ }
+
+ if(needs_entity) {
+ ir_type *frame_type = get_irg_frame_type(current_ir_graph);
+ create_declaration_entity(declaration,
+ DECLARATION_KIND_LOCAL_VARIABLE_ENTITY,
+ frame_type);
+ } else {
+ declaration->declaration_kind = DECLARATION_KIND_LOCAL_VARIABLE;
+ declaration->v.value_number = next_value_number_function;
+ set_irg_loc_description(current_ir_graph, next_value_number_function, declaration);
+ ++next_value_number_function;
+ }
+
+ create_initializer(declaration);
+}
+
+static void create_local_static_variable(declaration_t *declaration)
+{
+ assert(declaration->declaration_kind == DECLARATION_KIND_UNKNOWN);
+
+ type_t *const type = skip_typeref(declaration->type);
+ ir_type *const global_type = get_glob_type();
+ ident *const id = unique_ident(declaration->symbol->string);
+ ir_type *const irtype = get_ir_type(type);
+ dbg_info *const dbgi = get_dbg_info(&declaration->source_position);
+ ir_entity *const entity = new_d_entity(global_type, id, irtype, dbgi);
+ set_entity_ld_ident(entity, id);
+
+ declaration->declaration_kind = DECLARATION_KIND_GLOBAL_VARIABLE;
+ declaration->v.entity = entity;
+ set_entity_variability(entity, variability_uninitialized);
+ set_entity_visibility(entity, visibility_local);
+ set_entity_allocation(entity, allocation_static);
+
+ ir_graph *const old_current_ir_graph = current_ir_graph;
+ current_ir_graph = get_const_code_irg();
+
+ create_initializer(declaration);
+
+ assert(current_ir_graph == get_const_code_irg());
+ current_ir_graph = old_current_ir_graph;
+}
+
+
+
+static void return_statement_to_firm(return_statement_t *statement)
+{
+ if(get_cur_block() == NULL)
+ return;
+
+ ir_type *func_irtype = get_ir_type(current_function_decl->type);
+
+ dbg_info *dbgi = get_dbg_info(&statement->statement.source_position);
+
+ ir_node *in[1];
+ int in_len;
+ if(get_method_n_ress(func_irtype) > 0) {
+ ir_type *res_type = get_method_res_type(func_irtype, 0);
+
+ if(statement->return_value != NULL) {
+ ir_node *node = expression_to_firm(statement->return_value);
+ node = do_strict_conv(dbgi, node);
+ in[0] = node;
+ } else {
+ ir_mode *mode;
+ if(is_compound_type(res_type)) {
+ mode = mode_P_data;
+ } else {
+ mode = get_type_mode(res_type);
+ }
+ in[0] = new_Unknown(mode);
+ }
+ in_len = 1;
+ } else {
+ /* build return_value for its side effects */
+ if(statement->return_value != NULL) {
+ expression_to_firm(statement->return_value);
+ }
+ in_len = 0;
+ }
+
+ ir_node *store = get_store();
+ ir_node *ret = new_d_Return(dbgi, store, in_len, in);
+
+ ir_node *end_block = get_irg_end_block(current_ir_graph);
+ add_immBlock_pred(end_block, ret);