static type_t *type_void;
static type_t *type_int;
+static symbol_t *symbol_alloca;
+
static int next_value_number_function;
static ir_node *continue_label;
static ir_node *break_label;
ir_type_void, mode_P_data);
type_void->firm_type = ir_type_void;
+
+ symbol_alloca = symbol_table_insert("__builtin_alloca");
}
void exit_ast2firm(void)
tarval *tv;
size_t len;
if(mode_is_float(mode)) {
- len = snprintf(buf, sizeof(buf), "%LF", cnst->v.float_value);
+ tv = new_tarval_from_double(cnst->v.float_value, mode);
} else {
if(mode_is_signed(mode)) {
len = snprintf(buf, sizeof(buf), "%lld", cnst->v.int_value);
} else {
len = snprintf(buf, sizeof(buf), "%llu", cnst->v.int_value);
}
+ tv = new_tarval_from_str(buf, len, mode);
}
- tv = new_tarval_from_str(buf, len, mode);
return new_d_Const(dbgi, mode, tv);
}
panic("reference to declaration with unknown type found");
}
+static ir_node *process_builtin_call(const call_expression_t *call)
+{
+ dbg_info *dbgi = get_dbg_info(&call->expression.source_position);
+
+ assert(call->function->type == EXPR_BUILTIN_SYMBOL);
+ builtin_symbol_expression_t *builtin
+ = (builtin_symbol_expression_t*) call->function;
+ symbol_t *symbol = builtin->symbol;
+
+ if(symbol == symbol_alloca) {
+ if(call->arguments == NULL || call->arguments->next != NULL) {
+ panic("invalid number of parameters on __builtin_alloca");
+ }
+ expression_t *argument = call->arguments->expression;
+ ir_node *size = expression_to_firm(argument);
+
+ ir_node *store = get_store();
+ ir_node *alloca = new_d_Alloc(dbgi, store, size, firm_unknown_type,
+ stack_alloc);
+ ir_node *proj_m = new_Proj(alloca, mode_M, pn_Alloc_M);
+ set_store(proj_m);
+ ir_node *res = new_Proj(alloca, mode_P_data, pn_Alloc_res);
+
+ return res;
+ } else {
+ panic("Unsupported builtin found\n");
+ }
+}
+
static ir_node *call_expression_to_firm(const call_expression_t *call)
{
assert(get_cur_block() != NULL);
expression_t *function = call->function;
+ if(function->type == EXPR_BUILTIN_SYMBOL) {
+ return process_builtin_call(call);
+ }
ir_node *callee = expression_to_firm(function);
function_type_t *function_type;
return result;
}
+static void statement_to_firm(statement_t *statement);
+static ir_node *compound_statement_to_firm(compound_statement_t *compound);
+
static ir_node *expression_to_addr(const expression_t *expression);
static void create_condition_evaluation(const expression_t *expression,
ir_node *true_block,
offset = new_Const(mode, get_mode_one(mode));
}
- ir_node *new_value;
switch(expression->type) {
case UNEXPR_POSTFIX_INCREMENT: {
ir_node *new_value = new_d_Add(dbgi, value_node, offset, mode);
}
default:
panic("no incdec expr in create_incdec");
+ return NULL;
}
-
- return new_value;
}
static ir_node *unary_expression_to_firm(const unary_expression_t *expression)
{
dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
- type_t *type = expression->expression.datatype;
+ type_t *type = skip_typeref(expression->expression.datatype);
if(expression->type == UNEXPR_TAKE_ADDRESS)
return expression_to_addr(expression->value);
type_t *const type_left = skip_typeref(expr_left->datatype);
type_t *const type_right = skip_typeref(expr_right->datatype);
- if ((is_type_arithmetic(type_left) && is_type_arithmetic(type_right)) ||
- (type_left->type == TYPE_POINTER && type_right->type == TYPE_POINTER)) {
+ if (is_type_arithmetic(type_left) && is_type_arithmetic(type_right)) {
ir_mode *const mode = get_ir_mode(type);
return new_d_Sub(dbgi, left, right, mode);
+ } else if (type_left->type == TYPE_POINTER && type_right->type == TYPE_POINTER) {
+ const pointer_type_t *const ptr_type = (const pointer_type_t*)type_left;
+ const unsigned elem_size = get_type_size(ptr_type->points_to);
+ ir_mode *const mode = get_ir_mode(type);
+ ir_node *const sub = new_d_Sub(dbgi, left, right, mode);
+ ir_node *const cnst = new_Const_long(mode_Is, (long)elem_size);
+ ir_node *const no_mem = new_NoMem();
+ ir_node *const div = new_d_Div(dbgi, no_mem, sub, cnst, mode,
+ op_pin_state_floats);
+ return new_d_Proj(dbgi, div, mode, pn_Div_res);
}
assert(type_left->type == TYPE_POINTER);
ir_node *res;
switch(expression->type) {
+ case BINEXPR_SHIFTLEFT_ASSIGN:
case BINEXPR_SHIFTLEFT:
res = new_d_Shl(dbgi, left, right, mode);
break;
+ case BINEXPR_SHIFTRIGHT_ASSIGN:
case BINEXPR_SHIFTRIGHT: {
expression_t *expr_left = expression->left;
type_t *type_left = skip_typeref(expr_left->datatype);
ir_node *left = expression_to_firm(expression->left);
ir_node *right = expression_to_firm(expression->right);
ir_node *pin = new_Pin(new_NoMem());
- type_t *type = expression->expression.datatype;
+ /* be careful with the modes, because in arithmetic assign nodes only
+ * the right operand has the mode of the arithmetic already */
+ type_t *type = expression->right->datatype;
ir_mode *mode = get_ir_mode(type);
+ left = create_conv(dbgi, left, mode);
ir_node *op;
ir_node *res;
return value;
}
+static ir_node *create_arithmetic_assign_shift(
+ const binary_expression_t *expression)
+{
+ ir_node * value = create_shift(expression);
+ dbg_info *const dbgi = get_dbg_info(&expression->expression.source_position);
+ type_t *const type = expression->expression.datatype;
+ ir_mode *const mode = get_ir_mode(type);
+
+ value = create_conv(dbgi, value, mode);
+ set_value_for_expression(expression->left, value);
+
+ return value;
+}
static ir_node *binary_expression_to_firm(const binary_expression_t *expression)
{
case BINEXPR_BITWISE_XOR_ASSIGN:
return create_arithmetic_assign_binop(expression, new_d_Eor);
case BINEXPR_SHIFTLEFT_ASSIGN:
- return create_arithmetic_assign_binop(expression, new_d_Shl);
case BINEXPR_SHIFTRIGHT_ASSIGN:
- return create_arithmetic_assign_binop(expression, new_d_Shr);
+ return create_arithmetic_assign_shift(expression);
default:
panic("TODO binexpr type");
}
static ir_node *array_access_addr(const array_access_expression_t *expression)
{
dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
+ ir_node *base_addr;
+ ir_node *offset;
- ir_node *base_addr = expression_to_firm(expression->array_ref);
- ir_node *offset = expression_to_firm(expression->index);
- offset = create_conv(dbgi, offset, mode_Iu);
+ type_t *type_left = skip_typeref(expression->array_ref->datatype);
+ type_t *type_right = skip_typeref(expression->index->datatype);
+
+ if(type_left->type == TYPE_POINTER || type_left->type == TYPE_ARRAY) {
+ base_addr = expression_to_firm(expression->array_ref);
+ offset = expression_to_firm(expression->index);
+ } else {
+ assert(type_right->type == TYPE_POINTER
+ || type_right->type == TYPE_ARRAY);
+ base_addr = expression_to_firm(expression->index);
+ offset = expression_to_firm(expression->array_ref);
+ }
+ offset = create_conv(dbgi, offset, mode_Iu);
unsigned elem_size = get_type_size(expression->expression.datatype);
ir_node *elem_size_const = new_Const_long(mode_Iu, elem_size);
return current_function_name;
}
+static ir_node *statement_expression_to_firm(const statement_expression_t *expr)
+{
+ statement_t *statement = expr->statement;
+
+ assert(statement->type == STATEMENT_COMPOUND);
+ return compound_statement_to_firm((compound_statement_t*) statement);
+}
+
static ir_node *dereference_addr(const unary_expression_t *const expression)
{
assert(expression->type == UNEXPR_DEREFERENCE);
case EXPR_FUNCTION:
case EXPR_PRETTY_FUNCTION:
return function_name_to_firm((const string_literal_t*)expression);
+ case EXPR_STATEMENT:
+ return statement_expression_to_firm(
+ (const statement_expression_t*) expression);
case EXPR_OFFSETOF:
case EXPR_VA_ARG:
- case EXPR_STATEMENT:
case EXPR_BUILTIN_SYMBOL:
panic("unimplemented expression found");
set_cur_block(NULL);
}
-static void statement_to_firm(statement_t *statement);
static void return_statement_to_firm(return_statement_t *statement)
{
set_cur_block(NULL);
}
-static void compound_statement_to_firm(compound_statement_t *compound)
+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->next) {
//context2firm(&statement->context);
+
+ if(statement->next == NULL && statement->type == STATEMENT_EXPRESSION) {
+ result = expression_statement_to_firm(
+ (expression_statement_t*) statement);
+ break;
+ }
statement_to_firm(statement);
}
-}
-static void expression_statement_to_firm(expression_statement_t *statement)
-{
- if(get_cur_block() == NULL)
- return;
-
- expression_to_firm(statement->expression);
+ return result;
}
static void if_statement_to_firm(if_statement_t *statement)
compound_graph_path_entry_t *prev;
};
-static void create_initializer_list(initializer_list_t *initializer,
- type_t *type, ir_entity *entity,
- compound_graph_path_entry_t *entry,
- int len);
+static void create_initializer_object(initializer_t *initializer, type_t *type,
+ ir_entity *entity, compound_graph_path_entry_t *entry, int len);
-static void create_initializer_value(initializer_value_t *initializer,
- 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)
{
- ir_node *node = expression_to_firm(initializer->value);
-
- ir_type *type = get_entity_type(entity);
compound_graph_path *path = new_compound_graph_path(type, len);
int i = len - 1;
}
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);
}
create_initializer_value((initializer_value_t*) sub_initializer,
entity, &entry, len);
} else {
- assert(sub_initializer->type == INITIALIZER_LIST);
- create_initializer_list((initializer_list_t*) sub_initializer,
- compound_entry->type, entity, &entry, len);
+ type_t *type = skip_typeref(compound_entry->type);
+ create_initializer_object(sub_initializer, type, entity, &entry,
+ len);
}
++i;
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;
entity, &entry, len);
} else {
assert(sub_initializer->type == INITIALIZER_LIST);
- create_initializer_list((initializer_list_t*) sub_initializer,
- element_type, entity, &entry, len);
+ create_initializer_object(sub_initializer, element_type, entity,
+ &entry, len);
}
}
}
-static void create_initializer_list(initializer_list_t *initializer,
- type_t *type, ir_entity *entity,
- compound_graph_path_entry_t *entry, int len)
+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 *irtype = get_entity_type(entity);
+ size_t arr_len = get_array_type_size(type);
+ const char *p = initializer->string;
+ size_t i = 0;
+ for(i = 0; i < arr_len; ++i, ++p) {
+ entry.v.array_index = i;
+
+ ir_node *node = new_Const_long(mode_Bs, *p);
+ compound_graph_path *path = create_compound_path(irtype, &entry, len);
+ add_compound_ent_value_w_path(entity, node, path);
+
+ if(*p == '\0')
+ break;
+ }
+}
+
+static void create_initializer_object(initializer_t *initializer, type_t *type,
+ ir_entity *entity, compound_graph_path_entry_t *entry, int len)
{
if(type->type == TYPE_ARRAY) {
- create_initializer_array(initializer, (array_type_t*) type,
- entity, entry, len);
+ array_type_t *array_type = (array_type_t*) type;
+
+ if(initializer->type == INITIALIZER_STRING) {
+ initializer_string_t *string = (initializer_string_t*) initializer;
+ create_initializer_string(string, array_type, entity, entry, len);
+ } else {
+ assert(initializer->type == INITIALIZER_LIST);
+ initializer_list_t *list = (initializer_list_t*) initializer;
+ create_initializer_array(list, array_type, entity, entry, len);
+ }
} else {
+ assert(initializer->type == INITIALIZER_LIST);
+ initializer_list_t *list = (initializer_list_t*) initializer;
+
assert(type->type == TYPE_COMPOUND_STRUCT
|| type->type == TYPE_COMPOUND_UNION);
- create_initializer_compound(initializer, (compound_type_t*) type,
- entity, entry, len);
+ compound_type_t *compound_type = (compound_type_t*) type;
+ 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(is_atomic_entity(entity)) {
+ assert(initializer->type == INITIALIZER_VALUE);
+ initializer_value_t *initializer_value
+ = (initializer_value_t*) initializer;
+
+ ir_node *value = expression_to_firm(initializer_value->value);
+ ir_node *store = new_d_Store(dbgi, memory, addr, value);
+ ir_node *store_mem = new_d_Proj(dbgi, store, mode_M, pn_Store_M);
+ set_store(store_mem);
+ return;
+ }
+
+ /* create a "template" entity which is copied to the entity on the stack */
+ ident *id = unique_ident("initializer");
+ ir_type *irtype = get_ir_type(declaration->type);
+ ir_type *global_type = get_glob_type();
+ ir_entity *init_entity = new_entity(global_type, id, irtype);
+ set_entity_ld_ident(init_entity, id);
+
+ set_entity_variability(init_entity, variability_initialized);
+ set_entity_visibility(init_entity, visibility_local);
+
+ ir_graph *old_current_ir_graph = current_ir_graph;
+ current_ir_graph = get_const_code_irg();
+
+ type_t *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 *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);
+}
+
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_t*) initializer;
ir_node *value = expression_to_firm(initializer_value->value);
- if(declaration->declaration_type == DECLARATION_TYPE_LOCAL_VARIABLE) {
+ 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(initializer->type == INITIALIZER_LIST);
- initializer_list_t *list = (initializer_list_t*) initializer;
-
- declaration_type_t declaration_type = declaration->declaration_type;
+ declaration_type_t declaration_type = (declaration_type_t)declaration->declaration_type;
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);
- create_initializer_list(list, declaration->type, entity, NULL, 0);
+ type_t *type = skip_typeref(declaration->type);
+ create_initializer_object(initializer, type, entity, NULL, 0);
}
}
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);
+
+ 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 declaration_statement_to_firm(declaration_statement_t *statement)
{
declaration_t *declaration = statement->declarations_begin;
case STORAGE_CLASS_TYPEDEF:
continue;
case STORAGE_CLASS_STATIC:
- panic("static local vars not implemented yet");
+ create_local_static_variable(declaration);
+ continue;
case STORAGE_CLASS_ENUM_ENTRY:
panic("enum entry declaration in local block found");
case STORAGE_CLASS_EXTERN:
}
add_immBlock_pred(block, proj);
mature_immBlock(block);
+
+ statement_to_firm(statement->label_statement);
}
static ir_node *get_label_block(declaration_t *label)
/* count local variables declared in body */
count += count_decls_in_stmts(declaration->init.statement);
+ /* TODO FIXME: Matze: I'm lazy don't want to scan all expressions
+ * for expression statements... */
+ count += 10;
+
return count;
}
static void initialize_function_parameters(declaration_t *declaration)
{
- ir_graph *irg = current_ir_graph;
- ir_node *args = get_irg_args(irg);
- ir_node *start_block = get_irg_start_block(irg);
+ ir_graph *irg = current_ir_graph;
+ ir_node *args = get_irg_args(irg);
+ ir_node *start_block = get_irg_start_block(irg);
+ ir_type *function_irtype = get_ir_type(declaration->type);
int n = 0;
declaration_t *parameter = declaration->context.declarations;
- for( ; parameter != NULL; parameter = parameter->next) {
+ for( ; parameter != NULL; parameter = parameter->next, ++n) {
assert(parameter->declaration_type == DECLARATION_TYPE_UNKNOWN);
- type_t *type = parameter->type;
+ type_t *type = skip_typeref(parameter->type);
bool needs_entity = parameter->address_taken;
if(type->type == TYPE_COMPOUND_STRUCT
}
if(needs_entity) {
- panic("entities for function parameters not implemented yet");
+ ir_entity *entity = get_method_value_param_ent(function_irtype, n);
+ ident *id = new_id_from_str(parameter->symbol->string);
+ set_entity_ident(entity, id);
+
+ parameter->declaration_type
+ = DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY;
+ parameter->v.entity = entity;
+ continue;
}
ir_mode *mode = get_ir_mode(parameter->type);
long pn = n;
ir_node *proj = new_r_Proj(irg, start_block, args, mode, pn);
- ++n;
parameter->declaration_type = DECLARATION_TYPE_LOCAL_VARIABLE;
parameter->v.value_number = next_value_number_function;
static void context_to_firm(context_t *context)
{
+ /* first pass: create declarations */
declaration_t *declaration = context->declarations;
for( ; declaration != NULL; declaration = declaration->next) {
if(declaration->namespc != NAMESPACE_NORMAL)
type_t *type = declaration->type;
if(type->type == TYPE_FUNCTION) {
- create_function(declaration);
+ get_function_entity(declaration);
} else {
create_global_variable(declaration);
}
}
+
+ /* second pass: create code */
+ declaration = context->declarations;
+ for( ; declaration != NULL; declaration = declaration->next) {
+ if(declaration->namespc != NAMESPACE_NORMAL)
+ continue;
+ if(declaration->storage_class == STORAGE_CLASS_ENUM_ENTRY
+ || declaration->storage_class == STORAGE_CLASS_TYPEDEF)
+ continue;
+ if(declaration->symbol == NULL)
+ continue;
+
+ type_t *type = declaration->type;
+ if(type->type != TYPE_FUNCTION)
+ continue;
+
+ create_function(declaration);
+ }
}
void translation_unit_to_firm(translation_unit_t *unit)
projects / cparser / blobdiff