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 offset = 0;
declaration_t *entry = type->declaration->context.declarations;
for( ; entry != NULL; entry = entry->next) {
- if(entry->namespace != NAMESPACE_NORMAL)
+ if(entry->namespc != NAMESPACE_NORMAL)
continue;
ident *ident = new_id_from_str(entry->symbol->string);
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);
int size = 0;
declaration_t *entry = declaration->context.declarations;
for( ; entry != NULL; entry = entry->next) {
- if(entry->namespace != NAMESPACE_NORMAL)
+ if(entry->namespc != NAMESPACE_NORMAL)
continue;
ident *ident = new_id_from_str(entry->symbol->string);
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 *load_from_expression_addr(type_t *type, ir_node *addr,
- dbg_info *dbgi)
+static ir_node *string_literal_to_firm(const string_literal_t* literal)
{
- ir_mode *mode = get_ir_mode(type);
- ir_node *memory = get_store();
- ir_node *load = new_d_Load(dbgi, memory, addr, mode);
- ir_node *load_mem = new_d_Proj(dbgi, load, mode_M, pn_Load_M);
- ir_node *load_res = new_d_Proj(dbgi, load, mode, pn_Load_res);
- set_store(load_mem);
-
- return load_res;
+ return string_to_firm(&literal->expression.source_position, "Lstr",
+ literal->value);
}
static ir_node *deref_address(type_t *const type, ir_node *const addr,
case TYPE_COMPOUND_UNION:
return addr;
- default:
- return load_from_expression_addr(type, addr, dbgi);
+ default: {
+ ir_mode *const mode = get_ir_mode(type);
+ ir_node *const memory = get_store();
+ ir_node *const load = new_d_Load(dbgi, memory, addr, mode);
+ ir_node *const load_mem = new_d_Proj(dbgi, load, mode_M, pn_Load_M);
+ ir_node *const load_res = new_d_Proj(dbgi, load, mode, pn_Load_res);
+ set_store(load_mem);
+ return load_res;
+ }
}
}
expression_t *function = call->function;
ir_node *callee = expression_to_firm(function);
- assert(function->datatype->type == TYPE_FUNCTION);
- function_type_t *function_type = (function_type_t*) function->datatype;
+ function_type_t *function_type;
+ if (function->datatype->type == TYPE_POINTER) {
+ pointer_type_t *const ptr_type = (pointer_type_t*)function->datatype;
+ assert(ptr_type->points_to->type == TYPE_FUNCTION);
+ function_type = (function_type_t*)ptr_type->points_to;
+ } else {
+ assert(function->datatype->type == TYPE_FUNCTION);
+ function_type = (function_type_t*)function->datatype;
+ }
int n_parameters = 0;
call_argument_t *argument = call->arguments;
{
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) {
ir_node *left = expression_to_firm(expression->left);
ir_node *right = expression_to_firm(expression->right);
type_t *type = expression->right->datatype;
- /* be careful with the modes, because in asithmetic assign nodes only
- * the right operand has the mode of the arithmetic alread */
+ /* be careful with the modes, because in arithmetic assign nodes only
+ * the right operand has the mode of the arithmetic already */
ir_mode *mode = get_ir_mode(type);
left = create_conv(dbgi, left, mode);
ir_node *res = func(dbgi, left, right, mode);
return res;
}
+static ir_node *pointer_arithmetic(ir_node *const pointer,
+ ir_node * integer,
+ type_t *const type,
+ dbg_info *const dbgi,
+ const create_arithmetic_func func)
+{
+ pointer_type_t *const pointer_type = (pointer_type_t*)type;
+ type_t *const points_to = pointer_type->points_to;
+ const unsigned elem_size = get_type_size(points_to);
+
+ assert(elem_size >= 1);
+ if (elem_size > 1) {
+ integer = create_conv(dbgi, integer, mode_Is);
+ ir_node *const cnst = new_Const_long(mode_Is, (long)elem_size);
+ ir_node *const mul = new_d_Mul(dbgi, integer, cnst, mode_Is);
+ integer = mul;
+ }
+
+ ir_mode *const mode = get_ir_mode(type);
+ return func(dbgi, pointer, integer, mode);
+}
+
static ir_node *create_arithmetic_assign_binop(
const binary_expression_t *expression, create_arithmetic_func func)
{
- dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
- ir_node *value = create_arithmetic_binop(expression, func);
- type_t *type = expression->expression.datatype;
- ir_mode *mode = get_ir_mode(type);
+ dbg_info *const dbgi = get_dbg_info(&expression->expression.source_position);
+ type_t *const type = expression->expression.datatype;
+ ir_node *value;
- assert(type->type != TYPE_POINTER);
+ if (type->type == TYPE_POINTER) {
+ ir_node *const pointer = expression_to_firm(expression->left);
+ ir_node * integer = expression_to_firm(expression->right);
+ value = pointer_arithmetic(pointer, integer, type, dbgi, func);
+ } else {
+ value = create_arithmetic_binop(expression, func);
+ }
+ ir_mode *const mode = get_ir_mode(type);
value = create_conv(dbgi, value, mode);
set_value_for_expression(expression->left, value);
ir_node *left = expression_to_firm(expression->left);
ir_node *right = expression_to_firm(expression->right);
type_t *type = expression->expression.datatype;
- ir_mode *mode = get_ir_mode(type);
expression_t *expr_left = expression->left;
expression_t *expr_right = expression->right;
type_t *type_right = skip_typeref(expr_right->datatype);
if(is_type_arithmetic(type_left) && is_type_arithmetic(type_right)) {
+ ir_mode *const mode = get_ir_mode(type);
return new_d_Add(dbgi, left, right, mode);
}
- ir_node *pointer;
- ir_node *integer;
- pointer_type_t *pointer_type;
- if(type_left->type == TYPE_POINTER) {
- pointer = left;
- integer = right;
- pointer_type = (pointer_type_t*) type_left;
+ if (type_left->type == TYPE_POINTER || type_left->type == TYPE_ARRAY) {
+ return pointer_arithmetic(left, right, type, dbgi, new_d_Add);
} else {
- assert(type_right->type == TYPE_POINTER);
- pointer = right;
- integer = left;
- pointer_type = (pointer_type_t*) type_right;
+ assert(type_right->type == TYPE_POINTER || type_right->type == TYPE_ARRAY);
+ return pointer_arithmetic(right, left, type, dbgi, new_d_Add);
}
-
- type_t *points_to = pointer_type->points_to;
- unsigned elem_size = get_type_size(points_to);
-
- assert(elem_size >= 1);
- if(elem_size > 1) {
- integer = create_conv(dbgi, integer, mode_Is);
- ir_node *cnst = new_Const_long(mode_Is, (int) elem_size);
- ir_node *mul = new_d_Mul(dbgi, integer, cnst, mode_Is);
- integer = mul;
- }
-
- ir_node *res = new_d_Add(dbgi, pointer, integer, mode);
-
- return res;
}
static ir_node *create_sub(const binary_expression_t *expression)
{
- dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
- ir_node *left = expression_to_firm(expression->left);
- ir_node *right = expression_to_firm(expression->right);
- type_t *type = expression->expression.datatype;
- ir_mode *mode = get_ir_mode(type);
-
- expression_t *expr_left = expression->left;
- expression_t *expr_right = expression->right;
- type_t *type_left = skip_typeref(expr_left->datatype);
- type_t *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)) {
+ dbg_info *const dbgi = get_dbg_info(&expression->expression.source_position);
+ expression_t *const expr_left = expression->left;
+ expression_t *const expr_right = expression->right;
+ ir_node *const left = expression_to_firm(expr_left);
+ ir_node *const right = expression_to_firm(expr_right);
+ type_t *const type = expression->expression.datatype;
+ 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)) {
+ ir_mode *const mode = get_ir_mode(type);
return new_d_Sub(dbgi, left, right, mode);
}
- assert(type_right->type == TYPE_POINTER);
- ir_node *pointer = left;
- ir_node *integer = right;
- pointer_type_t *pointer_type = (pointer_type_t*) type_right;
-
- type_t *points_to = pointer_type->points_to;
- unsigned elem_size = get_type_size(points_to);
-
- assert(elem_size >= 1);
- if(elem_size > 1) {
- ir_node *cnst = new_Const_long(mode_Iu, elem_size);
- ir_node *mul = new_d_Mul(dbgi, integer, cnst, mode_Iu);
- integer = mul;
- }
-
- ir_node *res = new_d_Sub(dbgi, pointer, integer, mode);
-
- return res;
+ assert(type_left->type == TYPE_POINTER);
+ return pointer_arithmetic(left, right, type_left, dbgi, new_d_Sub);
}
static ir_node *create_shift(const binary_expression_t *expression)
{
dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
ir_node *addr = array_access_addr(expression);
- type_t *type = expression->expression.datatype;
+ type_t *type = skip_typeref(expression->expression.datatype);
return deref_address(type, addr, dbgi);
}
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);
{
dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
ir_node *addr = select_addr(expression);
- type_t *type = expression->expression.datatype;
+ type_t *type = skip_typeref(expression->expression.datatype);
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:
ir_node *fallthrough_block = new_immBlock();
/* the true (blocks) */
- ir_node *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);
+ 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 = new_immBlock();
/* the loop body */
- ir_node *body_block = new_immBlock();
-
- ir_node *old_continue_label = continue_label;
- ir_node *old_break_label = break_label;
- continue_label = header_block;
- break_label = false_block;
+ 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;
- statement_to_firm(statement->body);
+ 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;
+ 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) {
- ir_node *jmp = new_Jmp();
- add_immBlock_pred(header_block, jmp);
+ if(get_cur_block() != NULL) {
+ ir_node *jmp = new_Jmp();
+ add_immBlock_pred(header_block, jmp);
+ }
+ } else {
+ body_block = header_block;
}
/* create the condition */
add_immBlock_pred(body_block, jmp);
}
- ir_node *old_continue_label = continue_label;
- ir_node *old_break_label = break_label;
- continue_label = header_block;
- break_label = false_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;
- statement_to_firm(statement->body);
+ 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;
+ 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;
+ if (get_cur_block() == NULL) {
+ mature_immBlock(header_block);
+ mature_immBlock(body_block);
+ mature_immBlock(false_block);
+ return;
+ }
}
ir_node *body_jmp = new_Jmp();
ir_node *const false_block = new_immBlock();
/* the loop body */
- ir_node *const body_block = new_immBlock();
-
- ir_node *const old_continue_label = continue_label;
- ir_node *const old_break_label = break_label;
- continue_label = step_block;
- break_label = false_block;
-
- 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) {
- ir_node *const jmp = new_Jmp();
- add_immBlock_pred(step_block, jmp);
+ 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) {
+ ir_node *const jmp = new_Jmp();
+ add_immBlock_pred(step_block, jmp);
+ }
+ } else {
+ body_block = step_block;
}
/* create the condition */
/* 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);
}
}
static ir_node *get_label_block(declaration_t *label)
{
- assert(label->namespace == NAMESPACE_LABEL);
+ assert(label->namespc == NAMESPACE_LABEL);
if(label->declaration_type == DECLARATION_TYPE_LABEL_BLOCK) {
return label->v.block;
panic("Statement not implemented\n");
}
+static int count_local_declarations(const declaration_t * decl,
+ const declaration_t *const end)
+{
+ int count = 0;
+ for (; decl != end; decl = decl->next) {
+ const type_t *type = skip_typeref(decl->type);
+ switch (type->type) {
+ case TYPE_ATOMIC:
+ case TYPE_ENUM:
+ case TYPE_POINTER:
+ if (!decl->address_taken) ++count;
+ break;
+
+ default: break;
+ }
+ }
+ return count;
+}
+
+static int count_decls_in_stmts(const statement_t *stmt)
+{
+ int count = 0;
+ for (; stmt != NULL; stmt = stmt->next) {
+ switch (stmt->type) {
+ case STATEMENT_DECLARATION: {
+ const declaration_statement_t *const decl_stmt =
+ (const declaration_statement_t*)stmt;
+ count += count_local_declarations(decl_stmt->declarations_begin,
+ decl_stmt->declarations_end->next);
+ break;
+ }
+
+ case STATEMENT_COMPOUND: {
+ const compound_statement_t *const comp =
+ (const compound_statement_t*)stmt;
+ count += count_decls_in_stmts(comp->statements);
+ break;
+ }
+
+ case STATEMENT_IF: {
+ const if_statement_t *const if_stmt = (const if_statement_t*)stmt;
+ count += count_decls_in_stmts(if_stmt->true_statement);
+ count += count_decls_in_stmts(if_stmt->false_statement);
+ break;
+ }
+
+ case STATEMENT_SWITCH: {
+ const switch_statement_t *const switch_stmt =
+ (const switch_statement_t*)stmt;
+ count += count_decls_in_stmts(switch_stmt->body);
+ break;
+ }
+
+ case STATEMENT_LABEL: {
+ const label_statement_t *const label_stmt =
+ (const label_statement_t*)stmt;
+ count += count_decls_in_stmts(label_stmt->label_statement);
+ break;
+ }
+
+ case STATEMENT_WHILE: {
+ const while_statement_t *const while_stmt =
+ (const while_statement_t*)stmt;
+ count += count_decls_in_stmts(while_stmt->body);
+ break;
+ }
+
+ case STATEMENT_DO_WHILE: {
+ const do_while_statement_t *const do_while_stmt =
+ (const do_while_statement_t*)stmt;
+ count += count_decls_in_stmts(do_while_stmt->body);
+ break;
+ }
+
+ case STATEMENT_FOR: {
+ const for_statement_t *const for_stmt =
+ (const for_statement_t*)stmt;
+ /* TODO initialisation */
+ count += count_decls_in_stmts(for_stmt->body);
+ break;
+ }
+
+ case STATEMENT_BREAK:
+ case STATEMENT_CASE_LABEL:
+ case STATEMENT_CONTINUE:
+ case STATEMENT_EXPRESSION:
+ case STATEMENT_GOTO:
+ case STATEMENT_INVALID:
+ case STATEMENT_RETURN:
+ break;
+ }
+ }
+ return count;
+}
+
static int get_function_n_local_vars(declaration_t *declaration)
{
- (void) declaration;
- /* TODO */
- return 30;
+ int count = 0;
+
+ /* count parameters */
+ count += count_local_declarations(declaration->context.declarations, NULL);
+
+ /* count local variables declared in body */
+ count += count_decls_in_stmts(declaration->init.statement);
+
+ return count;
}
static void initialize_function_parameters(declaration_t *declaration)
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);
{
declaration_t *declaration = context->declarations;
for( ; declaration != NULL; declaration = declaration->next) {
- if(declaration->namespace != NAMESPACE_NORMAL)
+ if(declaration->namespc != NAMESPACE_NORMAL)
continue;
if(declaration->storage_class == STORAGE_CLASS_ENUM_ENTRY
|| declaration->storage_class == STORAGE_CLASS_TYPEDEF)
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;