static bool saw_default_label;
static ir_node **imature_blocks;
+static const declaration_t *current_function_decl;
+static ir_node *current_function_name;
+
typedef enum declaration_type_t {
DECLARATION_TYPE_UNKNOWN,
DECLARATION_TYPE_FUNCTION,
{
char buf[256];
- snprintf(buf, sizeof(buf), "%s.%d", tag, unique_id);
+ snprintf(buf, sizeof(buf), "%s.%u", tag, unique_id);
unique_id++;
return new_id_from_str(buf);
}
int entry_size = get_type_size_bytes(entry_ir_type);
int entry_alignment = get_type_alignment_bytes(entry_ir_type);
- int misalign = offset % entry_alignment;
- offset += misalign;
+ int misalign = offset % entry_alignment;
+ if (misalign != 0)
+ offset += entry_alignment - misalign;
ir_entity *entity = new_entity(ir_type, ident, entry_ir_type);
set_entity_offset(entity, offset);
return new_d_SymConst(dbgi, sym, symconst_addr_ent);
}
-static ir_node *string_literal_to_firm(const string_literal_t* literal)
+static ir_node *string_to_firm(const source_position_t *const src_pos,
+ const char *const id_prefix,
+ const char *const string)
{
- ir_type *global_type = get_glob_type();
- ir_type *type = new_type_array(unique_ident("strtype"), 1,
- ir_type_const_char);
+ ir_type *const global_type = get_glob_type();
+ ir_type *const type = new_type_array(unique_ident("strtype"), 1,
+ ir_type_const_char);
- ident *id = unique_ident("Lstr");
- ir_entity *entity = new_entity(global_type, id, type);
+ ident *const id = unique_ident(id_prefix);
+ ir_entity *const entity = new_entity(global_type, id, type);
set_entity_ld_ident(entity, id);
set_entity_variability(entity, variability_constant);
- ir_type *elem_type = ir_type_const_char;
- ir_mode *mode = get_type_mode(elem_type);
+ ir_type *const elem_type = ir_type_const_char;
+ ir_mode *const mode = get_type_mode(elem_type);
- const char *string = literal->value;
- size_t slen = strlen(string) + 1;
+ const size_t slen = strlen(string) + 1;
set_array_lower_bound_int(type, 0, 0);
set_array_upper_bound_int(type, 0, slen);
set_type_size_bytes(type, slen);
set_type_state(type, layout_fixed);
- tarval **tvs = xmalloc(slen * sizeof(tvs[0]));
+ tarval **const tvs = xmalloc(slen * sizeof(tvs[0]));
for(size_t i = 0; i < slen; ++i) {
tvs[i] = new_tarval_from_long(string[i], mode);
}
set_array_entity_values(entity, tvs, slen);
free(tvs);
- dbg_info *dbgi = get_dbg_info(&literal->expression.source_position);
+ dbg_info *const dbgi = get_dbg_info(src_pos);
return create_symconst(dbgi, entity);
}
+static ir_node *string_literal_to_firm(const string_literal_t* literal)
+{
+ return string_to_firm(&literal->expression.source_position, "Lstr",
+ literal->value);
+}
+
static ir_node *deref_address(type_t *const type, ir_node *const addr,
dbg_info *const dbgi)
{
{
ir_mode *value_mode = get_irn_mode(value);
- if(value_mode == dest_mode)
+ if (value_mode == dest_mode || is_Bad(value))
return value;
if(dest_mode == mode_b) {
add_immBlock_pred(common_block, false_jmp);
mature_immBlock(common_block);
+ /* TODO improve static semantics, so either both or no values are NULL */
+ if (true_val == NULL || false_val == NULL) return NULL;
+
ir_node *in[2] = { true_val, false_val };
ir_mode *mode = get_irn_mode(true_val);
assert(get_irn_mode(false_val) == mode);
return deref_address(type, addr, dbgi);
}
+/* Values returned by __builtin_classify_type. */
+typedef enum gcc_type_class
+{
+ no_type_class = -1,
+ void_type_class,
+ integer_type_class,
+ char_type_class,
+ enumeral_type_class,
+ boolean_type_class,
+ pointer_type_class,
+ reference_type_class,
+ offset_type_class,
+ real_type_class,
+ complex_type_class,
+ function_type_class,
+ method_type_class,
+ record_type_class,
+ union_type_class,
+ array_type_class,
+ string_type_class,
+ set_type_class,
+ file_type_class,
+ lang_type_class
+} gcc_type_class;
+
+static ir_node *classify_type_to_firm(const classify_type_expression_t *const expr)
+{
+ const type_t *const type = expr->type_expression->datatype;
+
+ gcc_type_class tc;
+ switch (type->type)
+ {
+ case TYPE_ATOMIC: {
+ const atomic_type_t *const atomic_type = (const atomic_type_t*)type;
+ switch (atomic_type->atype) {
+ // should not be reached
+ case ATOMIC_TYPE_INVALID:
+ tc = no_type_class;
+ break;
+
+ // gcc cannot do that
+ case ATOMIC_TYPE_VOID:
+ tc = void_type_class;
+ break;
+
+ case ATOMIC_TYPE_CHAR: // gcc handles this as integer
+ case ATOMIC_TYPE_SCHAR: // gcc handles this as integer
+ case ATOMIC_TYPE_UCHAR: // gcc handles this as integer
+ case ATOMIC_TYPE_SHORT:
+ case ATOMIC_TYPE_USHORT:
+ case ATOMIC_TYPE_INT:
+ case ATOMIC_TYPE_UINT:
+ case ATOMIC_TYPE_LONG:
+ case ATOMIC_TYPE_ULONG:
+ case ATOMIC_TYPE_LONGLONG:
+ case ATOMIC_TYPE_ULONGLONG:
+ case ATOMIC_TYPE_BOOL: // gcc handles this as integer
+ tc = integer_type_class;
+ break;
+
+ case ATOMIC_TYPE_FLOAT:
+ case ATOMIC_TYPE_DOUBLE:
+ case ATOMIC_TYPE_LONG_DOUBLE:
+ tc = real_type_class;
+ break;
+
+#ifdef PROVIDE_COMPLEX
+ case ATOMIC_TYPE_FLOAT_COMPLEX:
+ case ATOMIC_TYPE_DOUBLE_COMPLEX:
+ case ATOMIC_TYPE_LONG_DOUBLE_COMPLEX:
+ tc = complex_type_class;
+ break;
+ case ATOMIC_TYPE_FLOAT_IMAGINARY:
+ case ATOMIC_TYPE_DOUBLE_IMAGINARY:
+ case ATOMIC_TYPE_LONG_DOUBLE_IMAGINARY:
+ tc = complex_type_class;
+ break;
+#endif
+
+ default:
+ panic("Unimplemented case in classify_type_to_firm().");
+ }
+ break;
+ }
+
+ case TYPE_ARRAY: // gcc handles this as pointer
+ case TYPE_FUNCTION: // gcc handles this as pointer
+ case TYPE_POINTER: tc = pointer_type_class; break;
+ case TYPE_COMPOUND_STRUCT: tc = record_type_class; break;
+ case TYPE_COMPOUND_UNION: tc = union_type_class; break;
+
+ // gcc handles this as integer
+ case TYPE_ENUM: tc = integer_type_class; break;
+
+ default:
+ panic("Unimplemented case in classify_type_to_firm().");
+ }
+
+ dbg_info *const dbgi = get_dbg_info(&expr->expression.source_position);
+ ir_mode *const mode = mode_Is;
+ tarval *const tv = new_tarval_from_long(tc, mode);
+ return new_d_Const(dbgi, mode, tv);
+}
+
+static ir_node *function_name_to_firm(const string_literal_t *const expr)
+{
+ if (current_function_name == NULL) {
+ const source_position_t *const src_pos =
+ &expr->expression.source_position;
+ const char *const name = current_function_decl->symbol->string;
+ current_function_name = string_to_firm(src_pos, "__func__", name);
+ }
+
+ return current_function_name;
+}
+
static ir_node *dereference_addr(const unary_expression_t *const expression)
{
assert(expression->type == UNEXPR_DEREFERENCE);
return conditional_to_firm((const conditional_expression_t*)expression);
case EXPR_SELECT:
return select_to_firm((const select_expression_t*) expression);
+ case EXPR_CLASSIFY_TYPE:
+ return classify_type_to_firm((const classify_type_expression_t*)expression);
case EXPR_FUNCTION:
- case EXPR_OFFSETOF:
case EXPR_PRETTY_FUNCTION:
+ return function_name_to_firm((const string_literal_t*)expression);
+ case EXPR_OFFSETOF:
case EXPR_VA_ARG:
case EXPR_STATEMENT:
case EXPR_BUILTIN_SYMBOL:
/* 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_list(initializer_list_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)
+{
+ 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;
+ 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);
+
+ 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((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);
+ }
+
+ ++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;
+
+ compound_graph_path_entry_t entry;
+ entry.type = COMPOUND_GRAPH_ENTRY_ARRAY;
+ entry.prev = last_entry;
+ ++len;
+
+ for(size_t 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((initializer_value_t*) sub_initializer,
+ entity, &entry, len);
+ } else {
+ assert(sub_initializer->type == INITIALIZER_LIST);
+ create_initializer_list((initializer_list_t*) 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)
+{
+ if(type->type == TYPE_ARRAY) {
+ create_initializer_array(initializer, (array_type_t*) type,
+ entity, entry, len);
+ } else {
+ assert(type->type == TYPE_COMPOUND_STRUCT
+ || type->type == TYPE_COMPOUND_UNION);
+ create_initializer_compound(initializer, (compound_type_t*) type,
+ entity, entry, len);
+ }
+}
+
static void create_initializer(declaration_t *declaration)
{
initializer_t *initializer = declaration->init.initializer;
return;
if(initializer->type == INITIALIZER_VALUE) {
- assert(initializer->designator == NULL);
- assert(initializer->next == NULL);
- ir_node *init_node = expression_to_firm(initializer->v.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) {
- set_value(declaration->v.value_number, init_node);
+ set_value(declaration->v.value_number, value);
} else {
ir_entity *entity = declaration->v.entity;
set_entity_variability(entity, variability_initialized);
- set_atomic_ent_value(entity, init_node);
+ set_atomic_ent_value(entity, value);
}
} else {
assert(initializer->type == INITIALIZER_LIST);
- panic("list initializer not supported yet");
+ initializer_list_t *list = (initializer_list_t*) initializer;
+
+ declaration_type_t declaration_type = 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);
}
}
if(declaration->init.statement == NULL)
return;
+ current_function_decl = declaration;
+ current_function_name = NULL;
+
assert(imature_blocks == NULL);
imature_blocks = NEW_ARR_F(ir_node*, 0);
int misalign = 0;
if(align > 0) {
misalign = offset % align;
- offset += misalign;
+ if(misalign > 0) {
+ offset += align - misalign;
+ }
}
set_entity_offset(entity, offset);
void translation_unit_to_firm(translation_unit_t *unit)
{
- /* remove me later TODO FIXME */
- (void) get_type_size;
-
/* just to be sure */
continue_label = NULL;
break_label = NULL;
projects / cparser / blobdiff