return mode_Hs;
case ATOMIC_TYPE_USHORT:
return mode_Hu;
+ case ATOMIC_TYPE_BOOL:
case ATOMIC_TYPE_LONG:
case ATOMIC_TYPE_INT:
return mode_Is;
return mode_D;
case ATOMIC_TYPE_LONG_DOUBLE:
return mode_E;
- case ATOMIC_TYPE_BOOL:
- return mode_b;
#ifdef PROVIDE_COMPLEX
case ATOMIC_TYPE_FLOAT_COMPLEX:
case ATOMIC_TYPE_DOUBLE_COMPLEX:
ident *id = get_mode_ident(mode);
ir_type *irtype = new_type_primitive(id, mode);
+ if(type->atype == ATOMIC_TYPE_LONG_DOUBLE) {
+ set_type_alignment_bytes(irtype, 4);
+ }
+
return irtype;
}
return size_node;
}
+static tarval *try_fold_constant(const expression_t *expression)
+{
+ ir_graph *old_current_ir_graph = current_ir_graph;
+ if(current_ir_graph == NULL) {
+ current_ir_graph = get_const_code_irg();
+ }
+
+ ir_node *cnst = expression_to_firm(expression);
+ current_ir_graph = old_current_ir_graph;
+
+ if(!is_Const(cnst)) {
+ return NULL;
+ }
+
+ tarval *tv = get_Const_tarval(cnst);
+ if(!tarval_is_long(tv)) {
+ return NULL;
+ }
+
+ return tv;
+}
+
+static long fold_constant(const expression_t *expression)
+{
+ tarval *tv = try_fold_constant(expression);
+ if(tv == NULL) {
+ panic("couldn't fold constantl");
+ }
+
+ return get_tarval_long(tv);
+}
+
static ir_node *conditional_to_firm(const conditional_expression_t *expression)
{
dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
+ /* first try to fold a constant condition */
+ tarval *tv = try_fold_constant(expression->condition);
+ if(tv != NULL) {
+ long val = get_tarval_long(tv);
+ if(val) {
+ return expression_to_firm(expression->true_expression);
+ } else {
+ return expression_to_firm(expression->false_expression);
+ }
+ }
+
ir_node *cur_block = get_cur_block();
/* create the true block */
set_cur_block(NULL);
}
-static void return_statement_to_firm(return_statement_t *statement)
+
+
+static void create_declaration_entity(declaration_t *declaration,
+ declaration_type_t declaration_type,
+ ir_type *parent_type)
{
- if(get_cur_block() == NULL)
- return;
+ ident *id = new_id_from_str(declaration->symbol->string);
+ ir_type *irtype = get_ir_type(declaration->type);
+ ir_entity *entity = new_entity(parent_type, id, irtype);
+ set_entity_ld_ident(entity, id);
- ir_type *func_irtype = get_ir_type(current_function_decl->type);
+ declaration->declaration_type = (unsigned char) declaration_type;
+ declaration->v.entity = entity;
+ set_entity_variability(entity, variability_uninitialized);
+ if(parent_type == get_tls_type())
+ set_entity_allocation(entity, allocation_automatic);
+ else if(declaration_type == DECLARATION_TYPE_GLOBAL_VARIABLE)
+ set_entity_allocation(entity, allocation_static);
+ /* TODO: visibility? */
+}
- dbg_info *dbgi = get_dbg_info(&statement->statement.source_position);
+typedef struct compound_graph_path_entry_t compound_graph_path_entry_t;
- 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);
+enum compound_graph_entry_type_t {
+ COMPOUND_GRAPH_ENTRY_ARRAY,
+ COMPOUND_GRAPH_ENTRY_COMPOUND
+};
- if(statement->return_value != NULL) {
- ir_node *node = expression_to_firm(statement->return_value);
- node = do_strict_conv(dbgi, node);
- in[0] = node;
+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 {
- 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);
+ assert(entry->type == COMPOUND_GRAPH_ENTRY_ARRAY);
+ set_compound_graph_path_array_index(path, i, entry->v.array_index);
}
- in_len = 0;
}
+ assert(i == -1);
- 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);
-
- set_cur_block(NULL);
+ return path;
}
-static ir_node *expression_statement_to_firm(expression_statement_t *statement)
+static void create_initializer_value(initializer_value_t *initializer,
+ ir_entity *entity,
+ compound_graph_path_entry_t *entry,
+ int len)
{
- if(get_cur_block() == NULL)
- return NULL;
-
- return expression_to_firm(statement->expression);
+ 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 ir_node *compound_statement_to_firm(compound_statement_t *compound)
+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)
{
- ir_node *result = NULL;
- statement_t *statement = compound->statements;
- for( ; statement != NULL; statement = statement->base.next) {
- //context2firm(&statement->context);
+ declaration_t *compound_declaration = type->declaration;
- if(statement->base.next == NULL
- && statement->type == STATEMENT_EXPRESSION) {
- result = expression_statement_to_firm(
- (expression_statement_t*) statement);
+ 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_type
+ == DECLARATION_TYPE_COMPOUND_MEMBER);
+
+ if(sub_initializer->type == 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);
}
- statement_to_firm(statement);
- }
- return result;
+ ++i;
+ }
}
-static void if_statement_to_firm(if_statement_t *statement)
+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)
{
- ir_node *cur_block = get_cur_block();
+ type_t *element_type = type->element_type;
+ element_type = skip_typeref(element_type);
- ir_node *fallthrough_block = new_immBlock();
+ compound_graph_path_entry_t entry;
+ entry.type = COMPOUND_GRAPH_ENTRY_ARRAY;
+ entry.prev = last_entry;
+ ++len;
- /* the true (blocks) */
- ir_node *true_block;
- if (statement->true_statement != NULL) {
- true_block = new_immBlock();
- statement_to_firm(statement->true_statement);
- if(get_cur_block() != NULL) {
- ir_node *jmp = new_Jmp();
- add_immBlock_pred(fallthrough_block, jmp);
- }
- } else {
- true_block = fallthrough_block;
- }
+ size_t i;
+ for(i = 0; i < initializer->len; ++i) {
+ entry.v.array_index = i;
- /* the false (blocks) */
- ir_node *false_block;
- if(statement->false_statement != NULL) {
- false_block = new_immBlock();
+ initializer_t *sub_initializer = initializer->initializers[i];
- statement_to_firm(statement->false_statement);
- if(get_cur_block() != NULL) {
- ir_node *jmp = new_Jmp();
- add_immBlock_pred(fallthrough_block, jmp);
+ if(sub_initializer->type == INITIALIZER_VALUE) {
+ create_initializer_value(&sub_initializer->value,
+ entity, &entry, len);
+ } else {
+ create_initializer_object(sub_initializer, element_type, entity,
+ &entry, len);
}
- } else {
- false_block = fallthrough_block;
}
- /* create the condition */
- if(cur_block != NULL) {
- set_cur_block(cur_block);
- create_condition_evaluation(statement->condition, true_block,
- false_block);
- }
+#if 0
+ /* TODO: initialize rest... */
+ if(type->size_expression != NULL) {
+ size_t array_len = fold_constant(type->size_expression);
+ for( ; i < array_len; ++i) {
- mature_immBlock(true_block);
- if(false_block != fallthrough_block) {
- mature_immBlock(false_block);
+ }
}
- mature_immBlock(fallthrough_block);
-
- set_cur_block(fallthrough_block);
+#endif
}
-static void while_statement_to_firm(while_statement_t *statement)
+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)
{
- ir_node *jmp = NULL;
- if(get_cur_block() != NULL) {
- jmp = new_Jmp();
- }
-
- /* create the header block */
- ir_node *header_block = new_immBlock();
- if(jmp != NULL) {
- add_immBlock_pred(header_block, jmp);
- }
-
- /* the false block */
- ir_node *false_block = new_immBlock();
-
- /* the loop body */
- ir_node *body_block;
- if (statement->body != NULL) {
- ir_node *old_continue_label = continue_label;
- ir_node *old_break_label = break_label;
- continue_label = header_block;
- break_label = false_block;
-
- body_block = new_immBlock();
- statement_to_firm(statement->body);
-
- assert(continue_label == header_block);
- assert(break_label == false_block);
- continue_label = old_continue_label;
- break_label = old_break_label;
-
- if(get_cur_block() != NULL) {
- jmp = new_Jmp();
- add_immBlock_pred(header_block, jmp);
- }
- } else {
- body_block = header_block;
- }
-
- /* create the condition */
- set_cur_block(header_block);
-
- create_condition_evaluation(statement->condition, body_block, false_block);
- mature_immBlock(body_block);
- mature_immBlock(false_block);
- mature_immBlock(header_block);
-
- set_cur_block(false_block);
-}
-
-static void do_while_statement_to_firm(do_while_statement_t *statement)
-{
- ir_node *jmp = NULL;
- if(get_cur_block() != NULL) {
- jmp = new_Jmp();
- }
-
- /* create the header block */
- ir_node *header_block = new_immBlock();
-
- /* the false block */
- ir_node *false_block = new_immBlock();
-
- /* the loop body */
- ir_node *body_block = new_immBlock();
- if(jmp != NULL) {
- add_immBlock_pred(body_block, jmp);
- }
-
- if (statement->body != NULL) {
- ir_node *old_continue_label = continue_label;
- ir_node *old_break_label = break_label;
- continue_label = header_block;
- break_label = false_block;
-
- statement_to_firm(statement->body);
-
- assert(continue_label == header_block);
- assert(break_label == false_block);
- continue_label = old_continue_label;
- break_label = old_break_label;
-
- if (get_cur_block() == NULL) {
- mature_immBlock(header_block);
- mature_immBlock(body_block);
- mature_immBlock(false_block);
- return;
- }
- }
-
- ir_node *body_jmp = new_Jmp();
- add_immBlock_pred(header_block, body_jmp);
- mature_immBlock(header_block);
-
- /* create the condition */
- set_cur_block(header_block);
-
- create_condition_evaluation(statement->condition, body_block, false_block);
- mature_immBlock(body_block);
- mature_immBlock(false_block);
- mature_immBlock(header_block);
-
- set_cur_block(false_block);
-}
-
-static void for_statement_to_firm(for_statement_t *statement)
-{
- ir_node *jmp = NULL;
- if (get_cur_block() != NULL) {
- if(statement->initialisation != NULL) {
- expression_to_firm(statement->initialisation);
- }
- jmp = new_Jmp();
- }
-
- /* create the step block */
- ir_node *const step_block = new_immBlock();
- if (statement->step != NULL) {
- expression_to_firm(statement->step);
- }
- ir_node *const step_jmp = new_Jmp();
-
- /* create the header block */
- ir_node *const header_block = new_immBlock();
- if (jmp != NULL) {
- add_immBlock_pred(header_block, jmp);
- }
- add_immBlock_pred(header_block, step_jmp);
-
- /* the false block */
- ir_node *const false_block = new_immBlock();
-
- /* the loop body */
- ir_node * body_block;
- if (statement->body != NULL) {
- ir_node *const old_continue_label = continue_label;
- ir_node *const old_break_label = break_label;
- continue_label = step_block;
- break_label = false_block;
-
- body_block = new_immBlock();
- statement_to_firm(statement->body);
-
- assert(continue_label == step_block);
- assert(break_label == false_block);
- continue_label = old_continue_label;
- break_label = old_break_label;
-
- if (get_cur_block() != NULL) {
- jmp = new_Jmp();
- add_immBlock_pred(step_block, jmp);
- }
- } else {
- body_block = step_block;
- }
-
- /* create the condition */
- set_cur_block(header_block);
- if (statement->condition != NULL) {
- create_condition_evaluation(statement->condition, body_block,
- false_block);
- } else {
- keep_alive(header_block);
- jmp = new_Jmp();
- add_immBlock_pred(body_block, jmp);
- }
-
- mature_immBlock(body_block);
- mature_immBlock(false_block);
- mature_immBlock(step_block);
- mature_immBlock(header_block);
- mature_immBlock(false_block);
-
- set_cur_block(false_block);
-}
-
-static void create_declaration_entity(declaration_t *declaration,
- declaration_type_t declaration_type,
- ir_type *parent_type)
-{
- ident *id = new_id_from_str(declaration->symbol->string);
- ir_type *irtype = get_ir_type(declaration->type);
- ir_entity *entity = new_entity(parent_type, id, irtype);
- set_entity_ld_ident(entity, id);
-
- declaration->declaration_type = (unsigned char) declaration_type;
- declaration->v.entity = entity;
- set_entity_variability(entity, variability_uninitialized);
- if(parent_type == get_tls_type())
- set_entity_allocation(entity, allocation_automatic);
- else if(declaration_type == DECLARATION_TYPE_GLOBAL_VARIABLE)
- set_entity_allocation(entity, allocation_static);
- /* TODO: visibility? */
-}
-
-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_type
- == DECLARATION_TYPE_COMPOUND_MEMBER);
-
- if(sub_initializer->type == 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->type == 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);
+ 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;
ir_node *src_addr = create_symconst(dbgi, init_entity);
ir_node *copyb = new_d_CopyB(dbgi, memory, addr, src_addr, irtype);
- ir_node *copyb_mem = new_Proj(copyb, mode_M, pn_CopyB_M_regular);
- set_store(copyb_mem);
+ ir_node *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_type_t declaration_type
+ = (declaration_type_t) declaration->declaration_type;
+ if(declaration_type == DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY) {
+ create_initializer_local_variable_entity(declaration);
+ return;
+ }
+
+ if(initializer->type == INITIALIZER_VALUE) {
+ initializer_value_t *initializer_value = &initializer->value;
+
+ ir_node *value = expression_to_firm(initializer_value->value);
+
+ if(declaration_type == DECLARATION_TYPE_LOCAL_VARIABLE) {
+ set_value(declaration->v.value_number, value);
+ } else {
+ assert(declaration_type == DECLARATION_TYPE_GLOBAL_VARIABLE);
+
+ ir_entity *entity = declaration->v.entity;
+
+ set_entity_variability(entity, variability_initialized);
+ set_atomic_ent_value(entity, value);
+ }
+ } else {
+ assert(declaration_type == DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY
+ || declaration_type == DECLARATION_TYPE_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);
+ }
+}
+
+static void create_local_variable(declaration_t *declaration)
+{
+ assert(declaration->declaration_type == DECLARATION_TYPE_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_TYPE_LOCAL_VARIABLE_ENTITY,
+ frame_type);
+ } else {
+ declaration->declaration_type = DECLARATION_TYPE_LOCAL_VARIABLE;
+ declaration->v.value_number = next_value_number_function;
+ ++next_value_number_function;
+ }
+
+ create_initializer(declaration);
+}
+
+static void create_local_static_variable(declaration_t *declaration)
+{
+ assert(declaration->declaration_type == DECLARATION_TYPE_UNKNOWN);
+
+ type_t *type = skip_typeref(declaration->type);
+ ir_type *global_type = get_glob_type();
+ ident *id = unique_ident(declaration->symbol->string);
+ ir_type *irtype = get_ir_type(type);
+ ir_entity *entity = new_entity(global_type, id, irtype);
+ set_entity_ld_ident(entity, id);
+
+ declaration->declaration_type = DECLARATION_TYPE_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 *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);
+
+ set_cur_block(NULL);
+}
+
+static ir_node *expression_statement_to_firm(expression_statement_t *statement)
+{
+ if(get_cur_block() == NULL)
+ return NULL;
+
+ return expression_to_firm(statement->expression);
+}
+
+static ir_node *compound_statement_to_firm(compound_statement_t *compound)
+{
+ ir_node *result = NULL;
+ statement_t *statement = compound->statements;
+ for( ; statement != NULL; statement = statement->base.next) {
+ //context2firm(&statement->context);
+
+ if(statement->base.next == NULL
+ && statement->type == STATEMENT_EXPRESSION) {
+ result = expression_statement_to_firm(
+ (expression_statement_t*) statement);
+ break;
+ }
+ statement_to_firm(statement);
+ }
+
+ return result;
+}
+
+static void create_local_declaration(declaration_t *declaration)
+{
+ type_t *type = skip_typeref(declaration->type);
+
+ switch ((storage_class_tag_t) declaration->storage_class) {
+ case STORAGE_CLASS_STATIC:
+ create_local_static_variable(declaration);
+ return;
+ case STORAGE_CLASS_ENUM_ENTRY:
+ panic("enum entry declaration in local block found");
+ case STORAGE_CLASS_EXTERN:
+ panic("extern declaration in local block found");
+ case STORAGE_CLASS_NONE:
+ case STORAGE_CLASS_AUTO:
+ case STORAGE_CLASS_REGISTER:
+ if(is_type_function(type)) {
+ panic("nested functions not supported yet");
+ } else {
+ create_local_variable(declaration);
+ }
+ return;
+ case STORAGE_CLASS_TYPEDEF:
+ case STORAGE_CLASS_THREAD:
+ case STORAGE_CLASS_THREAD_EXTERN:
+ case STORAGE_CLASS_THREAD_STATIC:
+ return;
+ }
+ panic("invalid storage class found");
+}
+
+static void declaration_statement_to_firm(declaration_statement_t *statement)
+{
+ declaration_t *declaration = statement->declarations_begin;
+ declaration_t *end = statement->declarations_end->next;
+ for( ; declaration != end; declaration = declaration->next) {
+ create_local_variable(declaration);
+ }
+}
+
+static void if_statement_to_firm(if_statement_t *statement)
+{
+ ir_node *cur_block = get_cur_block();
+
+ ir_node *fallthrough_block = new_immBlock();
+
+ /* the true (blocks) */
+ ir_node *true_block;
+ if (statement->true_statement != NULL) {
+ true_block = new_immBlock();
+ statement_to_firm(statement->true_statement);
+ if(get_cur_block() != NULL) {
+ ir_node *jmp = new_Jmp();
+ add_immBlock_pred(fallthrough_block, jmp);
+ }
+ } else {
+ true_block = fallthrough_block;
+ }
+
+ /* the false (blocks) */
+ ir_node *false_block;
+ if(statement->false_statement != NULL) {
+ false_block = new_immBlock();
+
+ statement_to_firm(statement->false_statement);
+ if(get_cur_block() != NULL) {
+ ir_node *jmp = new_Jmp();
+ add_immBlock_pred(fallthrough_block, jmp);
+ }
+ } else {
+ false_block = fallthrough_block;
+ }
+
+ /* create the condition */
+ if(cur_block != NULL) {
+ set_cur_block(cur_block);
+ create_condition_evaluation(statement->condition, true_block,
+ false_block);
+ }
+
+ mature_immBlock(true_block);
+ if(false_block != fallthrough_block) {
+ mature_immBlock(false_block);
+ }
+ mature_immBlock(fallthrough_block);
+
+ set_cur_block(fallthrough_block);
}
-static void create_initializer(declaration_t *declaration)
+static void while_statement_to_firm(while_statement_t *statement)
{
- initializer_t *initializer = declaration->init.initializer;
- if(initializer == NULL)
- return;
+ ir_node *jmp = NULL;
+ if(get_cur_block() != NULL) {
+ jmp = new_Jmp();
+ }
- declaration_type_t declaration_type
- = (declaration_type_t) declaration->declaration_type;
- if(declaration_type == DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY) {
- create_initializer_local_variable_entity(declaration);
- return;
+ /* create the header block */
+ ir_node *header_block = new_immBlock();
+ if(jmp != NULL) {
+ add_immBlock_pred(header_block, jmp);
}
- if(initializer->type == INITIALIZER_VALUE) {
- initializer_value_t *initializer_value = &initializer->value;
+ /* the false block */
+ ir_node *false_block = new_immBlock();
- ir_node *value = expression_to_firm(initializer_value->value);
+ /* the loop body */
+ ir_node *body_block;
+ if (statement->body != NULL) {
+ ir_node *old_continue_label = continue_label;
+ ir_node *old_break_label = break_label;
+ continue_label = header_block;
+ break_label = false_block;
- if(declaration_type == DECLARATION_TYPE_LOCAL_VARIABLE) {
- set_value(declaration->v.value_number, value);
- } else {
- assert(declaration_type == DECLARATION_TYPE_GLOBAL_VARIABLE);
+ body_block = new_immBlock();
+ statement_to_firm(statement->body);
- ir_entity *entity = declaration->v.entity;
+ assert(continue_label == header_block);
+ assert(break_label == false_block);
+ continue_label = old_continue_label;
+ break_label = old_break_label;
- set_entity_variability(entity, variability_initialized);
- set_atomic_ent_value(entity, value);
+ if(get_cur_block() != NULL) {
+ jmp = new_Jmp();
+ add_immBlock_pred(header_block, jmp);
}
} else {
- assert(declaration_type == DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY
- || declaration_type == DECLARATION_TYPE_GLOBAL_VARIABLE);
+ body_block = header_block;
+ }
- ir_entity *entity = declaration->v.entity;
- set_entity_variability(entity, variability_initialized);
+ /* create the condition */
+ set_cur_block(header_block);
- type_t *type = skip_typeref(declaration->type);
- create_initializer_object(initializer, type, entity, NULL, 0);
- }
+ create_condition_evaluation(statement->condition, body_block, false_block);
+ mature_immBlock(body_block);
+ mature_immBlock(false_block);
+ mature_immBlock(header_block);
+
+ set_cur_block(false_block);
}
-static void create_local_variable(declaration_t *declaration)
+static void do_while_statement_to_firm(do_while_statement_t *statement)
{
- assert(declaration->declaration_type == DECLARATION_TYPE_UNKNOWN);
+ ir_node *jmp = NULL;
+ if(get_cur_block() != NULL) {
+ jmp = new_Jmp();
+ }
- bool needs_entity = declaration->address_taken;
- type_t *type = skip_typeref(declaration->type);
+ /* create the header block */
+ ir_node *header_block = new_immBlock();
- if(is_type_array(type) || is_type_compound(type)) {
- needs_entity = true;
+ /* the false block */
+ ir_node *false_block = new_immBlock();
+
+ /* the loop body */
+ ir_node *body_block = new_immBlock();
+ if(jmp != NULL) {
+ add_immBlock_pred(body_block, jmp);
}
- if(needs_entity) {
- ir_type *frame_type = get_irg_frame_type(current_ir_graph);
- create_declaration_entity(declaration,
- DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY,
- frame_type);
- } else {
- declaration->declaration_type = DECLARATION_TYPE_LOCAL_VARIABLE;
- declaration->v.value_number = next_value_number_function;
- ++next_value_number_function;
+ if (statement->body != NULL) {
+ ir_node *old_continue_label = continue_label;
+ ir_node *old_break_label = break_label;
+ continue_label = header_block;
+ break_label = false_block;
+
+ statement_to_firm(statement->body);
+
+ assert(continue_label == header_block);
+ assert(break_label == false_block);
+ continue_label = old_continue_label;
+ break_label = old_break_label;
+
+ if (get_cur_block() == NULL) {
+ mature_immBlock(header_block);
+ mature_immBlock(body_block);
+ mature_immBlock(false_block);
+ return;
+ }
}
- create_initializer(declaration);
+ ir_node *body_jmp = new_Jmp();
+ add_immBlock_pred(header_block, body_jmp);
+ mature_immBlock(header_block);
+
+ /* create the condition */
+ set_cur_block(header_block);
+
+ create_condition_evaluation(statement->condition, body_block, false_block);
+ mature_immBlock(body_block);
+ mature_immBlock(false_block);
+ mature_immBlock(header_block);
+
+ set_cur_block(false_block);
}
-static void create_local_static_variable(declaration_t *declaration)
+static void for_statement_to_firm(for_statement_t *statement)
{
- assert(declaration->declaration_type == DECLARATION_TYPE_UNKNOWN);
+ ir_node *jmp = NULL;
+ if (get_cur_block() != NULL) {
+ if(statement->initialisation != NULL) {
+ expression_to_firm(statement->initialisation);
+ }
- type_t *type = skip_typeref(declaration->type);
- ir_type *global_type = get_glob_type();
- ident *id = unique_ident(declaration->symbol->string);
- ir_type *irtype = get_ir_type(type);
- ir_entity *entity = new_entity(global_type, id, irtype);
- set_entity_ld_ident(entity, id);
+ /* create declarations */
+ declaration_t *declaration = statement->context.declarations;
+ for( ; declaration != NULL; declaration = declaration->next) {
+ create_local_declaration(declaration);
+ }
- declaration->declaration_type = DECLARATION_TYPE_GLOBAL_VARIABLE;
- declaration->v.entity = entity;
- set_entity_variability(entity, variability_uninitialized);
- set_entity_visibility(entity, visibility_local);
- set_entity_allocation(entity, allocation_static);
+ jmp = new_Jmp();
+ }
- ir_graph *old_current_ir_graph = current_ir_graph;
- current_ir_graph = get_const_code_irg();
- create_initializer(declaration);
+ /* create the step block */
+ ir_node *const step_block = new_immBlock();
+ if (statement->step != NULL) {
+ expression_to_firm(statement->step);
+ }
+ ir_node *const step_jmp = new_Jmp();
- assert(current_ir_graph == get_const_code_irg());
- current_ir_graph = old_current_ir_graph;
-}
+ /* create the header block */
+ ir_node *const header_block = new_immBlock();
+ if (jmp != NULL) {
+ add_immBlock_pred(header_block, jmp);
+ }
+ add_immBlock_pred(header_block, step_jmp);
-static void declaration_statement_to_firm(declaration_statement_t *statement)
-{
- declaration_t *declaration = statement->declarations_begin;
- declaration_t *end = statement->declarations_end->next;
- for( ; declaration != end; declaration = declaration->next) {
- type_t *type = skip_typeref(declaration->type);
+ /* the false block */
+ ir_node *const false_block = new_immBlock();
- switch ((storage_class_tag_t) declaration->storage_class) {
- case STORAGE_CLASS_TYPEDEF:
- continue;
- case STORAGE_CLASS_STATIC:
- create_local_static_variable(declaration);
- continue;
- case STORAGE_CLASS_ENUM_ENTRY:
- panic("enum entry declaration in local block found");
- case STORAGE_CLASS_EXTERN:
- panic("extern declaration in local block found");
- case STORAGE_CLASS_NONE:
- case STORAGE_CLASS_AUTO:
- case STORAGE_CLASS_REGISTER:
- if(is_type_function(type)) {
- panic("nested functions not supported yet");
- } else {
- create_local_variable(declaration);
- }
- continue;
- case STORAGE_CLASS_THREAD:
- case STORAGE_CLASS_THREAD_EXTERN:
- case STORAGE_CLASS_THREAD_STATIC:
- break;
+ /* the loop body */
+ ir_node * body_block;
+ if (statement->body != NULL) {
+ ir_node *const old_continue_label = continue_label;
+ ir_node *const old_break_label = break_label;
+ continue_label = step_block;
+ break_label = false_block;
+
+ body_block = new_immBlock();
+ statement_to_firm(statement->body);
+
+ assert(continue_label == step_block);
+ assert(break_label == false_block);
+ continue_label = old_continue_label;
+ break_label = old_break_label;
+
+ if (get_cur_block() != NULL) {
+ jmp = new_Jmp();
+ add_immBlock_pred(step_block, jmp);
}
- panic("invalid storage class found");
+ } else {
+ body_block = step_block;
+ }
+
+ /* create the condition */
+ set_cur_block(header_block);
+ if (statement->condition != NULL) {
+ create_condition_evaluation(statement->condition, body_block,
+ false_block);
+ } else {
+ keep_alive(header_block);
+ jmp = new_Jmp();
+ add_immBlock_pred(body_block, jmp);
}
+
+ mature_immBlock(body_block);
+ mature_immBlock(false_block);
+ mature_immBlock(step_block);
+ mature_immBlock(header_block);
+ mature_immBlock(false_block);
+
+ set_cur_block(false_block);
}
static void create_jump_statement(const statement_t *statement,
set_cur_block(break_block);
}
-static long fold_constant(const expression_t *expression)
-{
- ir_graph *old_current_ir_graph = current_ir_graph;
- current_ir_graph = get_const_code_irg();
-
- ir_node *cnst = expression_to_firm(expression);
- if(!is_Const(cnst)) {
- panic("couldn't fold constantl");
- }
- tarval *tv = get_Const_tarval(cnst);
- if(!tarval_is_long(tv)) {
- panic("folded constant not an integer");
- }
-
- long res = get_tarval_long(tv);
-
- current_ir_graph = old_current_ir_graph;
- return res;
-}
-
static void case_label_to_firm(const case_label_statement_t *statement)
{
dbg_info *dbgi = get_dbg_info(&statement->statement.source_position);
projects / cparser / commitdiff