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 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);
static ir_node *expression_to_firm(const expression_t *expression);
-static ir_node *expression_to_modeb(const expression_t *expression);
static dbg_info *get_dbg_info(const source_position_t *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 *deref_address(type_t *const type, ir_node *const addr,
+ dbg_info *const dbgi)
{
- 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);
+ switch (type->type) {
+ case TYPE_ARRAY:
+ case TYPE_COMPOUND_STRUCT:
+ case TYPE_COMPOUND_UNION:
+ return addr;
- return load_res;
+ 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;
+ }
+ }
}
static ir_node *reference_expression_to_firm(const reference_expression_t *ref)
case DECLARATION_TYPE_GLOBAL_VARIABLE: {
ir_entity *entity = declaration->v.entity;
ir_node *symconst = create_symconst(dbgi, entity);
-
- if(type->type == TYPE_ARRAY) {
- return symconst;
- } else {
- return load_from_expression_addr(type, symconst, dbgi);
- }
+ return deref_address(type, symconst, dbgi);
}
case DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY: {
ir_entity *entity = declaration->v.entity;
ir_node *frame = get_irg_frame(current_ir_graph);
ir_node *sel = new_d_simpleSel(dbgi, new_NoMem(), frame, entity);
-
- if(type->type == TYPE_ARRAY || type->type == TYPE_COMPOUND_STRUCT
- || type->type == TYPE_COMPOUND_UNION) {
- return sel;
- } else {
- return load_from_expression_addr(type, sel, dbgi);
- }
+ return deref_address(type, sel, dbgi);
}
case DECLARATION_TYPE_COMPOUND_MEMBER:
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;
}
static ir_node *expression_to_addr(const expression_t *expression);
+static void create_condition_evaluation(const expression_t *expression,
+ ir_node *true_block,
+ ir_node *false_block);
static void set_value_for_expression(const expression_t *expression,
ir_node *value)
return new_d_Conv(dbgi, value, dest_mode);
}
+static ir_node *create_incdec(const unary_expression_t *expression)
+{
+ dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
+ type_t *type = expression->expression.datatype;
+ ir_mode *mode = get_ir_mode(type);
+ expression_t *value = expression->value;
+
+ ir_node *value_node = expression_to_firm(value);
+
+ ir_node *offset;
+ if(type->type == TYPE_POINTER) {
+ pointer_type_t *pointer_type = (pointer_type_t*) type;
+ unsigned elem_size = get_type_size(pointer_type->points_to);
+ offset = new_Const_long(mode_Is, elem_size);
+ } else {
+ assert(is_type_arithmetic(type));
+ 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);
+ set_value_for_expression(value, new_value);
+ return value_node;
+ }
+ case UNEXPR_POSTFIX_DECREMENT: {
+ ir_node *new_value = new_d_Sub(dbgi, value_node, offset, mode);
+ set_value_for_expression(value, new_value);
+ return value_node;
+ }
+ case UNEXPR_PREFIX_INCREMENT: {
+ ir_node *new_value = new_d_Add(dbgi, value_node, offset, mode);
+ set_value_for_expression(value, new_value);
+ return new_value;
+ }
+ case UNEXPR_PREFIX_DECREMENT: {
+ ir_node *new_value = new_d_Sub(dbgi, value_node, offset, mode);
+ set_value_for_expression(value, new_value);
+ return new_value;
+ }
+ default:
+ panic("no incdec expr in create_incdec");
+ }
+
+ 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;
- ir_mode *mode = get_ir_mode(type);
if(expression->type == UNEXPR_TAKE_ADDRESS)
return expression_to_addr(expression->value);
switch(expression->type) {
case UNEXPR_NEGATE:
- return new_d_Minus(dbgi, value_node, mode);
+ return new_d_Minus(dbgi, value_node, get_ir_mode(type));
case UNEXPR_PLUS:
return value_node;
case UNEXPR_BITWISE_NEGATE:
- return new_d_Not(dbgi, value_node, mode);
- case UNEXPR_NOT:
+ return new_d_Not(dbgi, value_node, get_ir_mode(type));
+ case UNEXPR_NOT: {
if(get_irn_mode(value_node) != mode_b) {
value_node = create_conv(dbgi, value_node, mode_b);
}
value_node = new_d_Not(dbgi, value_node, mode_b);
+ ir_mode *const mode = get_ir_mode(type);
if(mode != mode_b) {
value_node = create_conv(dbgi, value_node, mode);
}
return value_node;
- case UNEXPR_DEREFERENCE:
- return load_from_expression_addr(type, value_node, dbgi);
- case UNEXPR_POSTFIX_INCREMENT: {
- ir_node *one = new_Const(mode, get_mode_one(mode));
- ir_node *new_value = new_d_Add(dbgi, value_node, one, mode);
- set_value_for_expression(value, new_value);
- return value_node;
- }
- case UNEXPR_POSTFIX_DECREMENT: {
- ir_node *one = new_Const(mode, get_mode_one(mode));
- ir_node *new_value = new_d_Sub(dbgi, value_node, one, mode);
- set_value_for_expression(value, new_value);
- return value_node;
- }
- case UNEXPR_PREFIX_INCREMENT: {
- ir_node *one = new_Const(mode, get_mode_one(mode));
- ir_node *new_value = new_d_Add(dbgi, value_node, one, mode);
- set_value_for_expression(value, new_value);
- return new_value;
- }
- case UNEXPR_PREFIX_DECREMENT: {
- ir_node *one = new_Const(mode, get_mode_one(mode));
- ir_node *new_value = new_d_Sub(dbgi, value_node, one, mode);
- set_value_for_expression(value, new_value);
- return new_value;
}
+ case UNEXPR_DEREFERENCE:
+ return deref_address(type, value_node, dbgi);
+ case UNEXPR_POSTFIX_INCREMENT:
+ case UNEXPR_POSTFIX_DECREMENT:
+ case UNEXPR_PREFIX_INCREMENT:
+ case UNEXPR_PREFIX_DECREMENT:
+ return create_incdec(expression);
case UNEXPR_CAST:
- return create_conv(dbgi, value_node, mode);
+ return create_conv(dbgi, value_node, get_ir_mode(type));
case UNEXPR_TAKE_ADDRESS:
case UNEXPR_INVALID:
static ir_node *create_lazy_op(const binary_expression_t *expression)
{
dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
+ type_t *type = expression->expression.datatype;
+ ir_mode *mode = get_ir_mode(type);
- bool is_or = (expression->type == BINEXPR_LOGICAL_OR);
- assert(is_or || expression->type == BINEXPR_LOGICAL_AND);
-
- ir_node *val1 = expression_to_modeb(expression->left);
- ir_node *cond = new_d_Cond(dbgi, val1);
- ir_node *true_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_true);
- ir_node *false_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_false);
-
- ir_node *fallthrough_block = new_immBlock();
-
- /* the true case */
- ir_node *calc_val2_block = new_immBlock();
- if(is_or) {
- add_immBlock_pred(calc_val2_block, false_proj);
- } else {
- add_immBlock_pred(calc_val2_block, true_proj);
- }
+ ir_node *cur_block = get_cur_block();
- mature_immBlock(calc_val2_block);
+ ir_node *one_block = new_immBlock();
+ ir_node *one = new_Const(mode, get_mode_one(mode));
+ ir_node *jmp_one = new_d_Jmp(dbgi);
- ir_node *val2 = expression_to_modeb(expression->right);
- if(get_cur_block() != NULL) {
- ir_node *jmp = new_d_Jmp(dbgi);
- add_immBlock_pred(fallthrough_block, jmp);
- }
+ ir_node *zero_block = new_immBlock();
+ ir_node *zero = new_Const(mode, get_mode_null(mode));
+ ir_node *jmp_zero = new_d_Jmp(dbgi);
- /* fallthrough */
- ir_node *constb;
- if(is_or) {
- constb = new_d_Const(dbgi, mode_b, get_tarval_b_true());
- add_immBlock_pred(fallthrough_block, true_proj);
- } else {
- constb = new_d_Const(dbgi, mode_b, get_tarval_b_false());
- add_immBlock_pred(fallthrough_block, false_proj);
- }
- mature_immBlock(fallthrough_block);
+ set_cur_block(cur_block);
+ create_condition_evaluation((const expression_t*) expression,
+ one_block, zero_block);
+ mature_immBlock(one_block);
+ mature_immBlock(zero_block);
- set_cur_block(fallthrough_block);
+ ir_node *common_block = new_immBlock();
+ add_immBlock_pred(common_block, jmp_one);
+ add_immBlock_pred(common_block, jmp_zero);
+ mature_immBlock(common_block);
- ir_node *in[2] = { val2, constb };
- ir_node *val = new_d_Phi(dbgi, 2, in, mode_b);
+ ir_node *in[2] = { one, zero };
+ ir_node *val = new_d_Phi(dbgi, 2, in, mode);
return val;
}
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)
ir_node *op;
ir_node *res;
- if(expression->type == BINEXPR_DIV) {
- if(mode_is_float(mode)) {
- op = new_d_Quot(dbgi, pin, left, right, mode, op_pin_state_floats);
- res = new_d_Proj(dbgi, op, mode, pn_Quot_res);
- } else {
- op = new_d_Div(dbgi, pin, left, right, mode, op_pin_state_floats);
- res = new_d_Proj(dbgi, op, mode, pn_Div_res);
- }
- } else {
- assert(expression->type == BINEXPR_MOD);
- assert(!mode_is_float(mode));
- op = new_d_Mod(dbgi, pin, left, right, mode, op_pin_state_floats);
- res = new_d_Proj(dbgi, op, mode, pn_Mod_res);
+ switch (expression->type) {
+ case BINEXPR_DIV:
+ case BINEXPR_DIV_ASSIGN:
+ if(mode_is_float(mode)) {
+ op = new_d_Quot(dbgi, pin, left, right, mode, op_pin_state_floats);
+ res = new_d_Proj(dbgi, op, mode, pn_Quot_res);
+ } else {
+ op = new_d_Div(dbgi, pin, left, right, mode, op_pin_state_floats);
+ res = new_d_Proj(dbgi, op, mode, pn_Div_res);
+ }
+ break;
+
+ case BINEXPR_MOD:
+ case BINEXPR_MOD_ASSIGN:
+ assert(!mode_is_float(mode));
+ op = new_d_Mod(dbgi, pin, left, right, mode, op_pin_state_floats);
+ res = new_d_Proj(dbgi, op, mode, pn_Mod_res);
+ break;
+
+ default: panic("unexpected binary expression type in create_divmod()");
}
return res;
}
+static ir_node *create_arithmetic_assign_divmod(
+ const binary_expression_t *expression)
+{
+ ir_node * value = create_divmod(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);
+
+ assert(type->type != TYPE_POINTER);
+
+ 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)
return create_arithmetic_assign_binop(expression, new_d_Sub);
case BINEXPR_MUL_ASSIGN:
return create_arithmetic_assign_binop(expression, new_d_Mul);
+ case BINEXPR_DIV_ASSIGN:
+ return create_arithmetic_assign_divmod(expression);
case BINEXPR_BITWISE_AND_ASSIGN:
return create_arithmetic_assign_binop(expression, new_d_And);
case BINEXPR_BITWISE_OR_ASSIGN:
dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
ir_node *addr = array_access_addr(expression);
type_t *type = expression->expression.datatype;
-
- return load_from_expression_addr(type, addr, dbgi);
+ return deref_address(type, addr, dbgi);
}
static ir_node *sizeof_to_firm(const sizeof_expression_t *expression)
{
dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
- ir_node *condition = expression_to_modeb(expression->condition);
- ir_node *cond = new_d_Cond(dbgi, condition);
- ir_node *true_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_true);
- ir_node *false_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_false);
+ ir_node *cur_block = get_cur_block();
/* create the true block */
- ir_node *true_block = new_immBlock();
- add_immBlock_pred(true_block, true_proj);
- mature_immBlock(true_block);
+ ir_node *true_block = new_immBlock();
ir_node *true_val = expression_to_firm(expression->true_expression);
ir_node *true_jmp = new_Jmp();
/* create the false block */
ir_node *false_block = new_immBlock();
- add_immBlock_pred(false_block, false_proj);
- mature_immBlock(false_block);
ir_node *false_val = expression_to_firm(expression->false_expression);
ir_node *false_jmp = new_Jmp();
+ /* create the condition evaluation */
+ set_cur_block(cur_block);
+ create_condition_evaluation(expression->condition, true_block, false_block);
+ mature_immBlock(true_block);
+ mature_immBlock(false_block);
+
/* create the common block */
ir_node *common_block = new_immBlock();
add_immBlock_pred(common_block, true_jmp);
{
dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
ir_node *addr = select_addr(expression);
- type_t *type = expression->expression.datatype;
-
- return load_from_expression_addr(type, addr, dbgi);
+ type_t *type = skip_typeref(expression->expression.datatype);
+ return deref_address(type, addr, dbgi);
}
static ir_node *dereference_addr(const unary_expression_t *const expression)
return res;
}
+/**
+ * create a short-circuit expression evaluation that tries to construct
+ * efficient control flow structures for &&, || and ! expressions
+ */
+static void create_condition_evaluation(const expression_t *expression,
+ ir_node *true_block,
+ ir_node *false_block)
+{
+ switch(expression->type) {
+ case EXPR_UNARY: {
+ unary_expression_t *unary_expression = (unary_expression_t*) expression;
+ if(unary_expression->type == UNEXPR_NOT) {
+ create_condition_evaluation(unary_expression->value, false_block,
+ true_block);
+ return;
+ }
+ break;
+ }
+ case EXPR_BINARY: {
+ binary_expression_t *binary_expression
+ = (binary_expression_t*) expression;
+ if(binary_expression->type == BINEXPR_LOGICAL_AND) {
+ ir_node *cur_block = get_cur_block();
+ ir_node *extra_block = new_immBlock();
+ set_cur_block(cur_block);
+ create_condition_evaluation(binary_expression->left, extra_block,
+ false_block);
+ mature_immBlock(extra_block);
+ set_cur_block(extra_block);
+ create_condition_evaluation(binary_expression->right, true_block,
+ false_block);
+ return;
+ }
+ if(binary_expression->type == BINEXPR_LOGICAL_OR) {
+ ir_node *cur_block = get_cur_block();
+ ir_node *extra_block = new_immBlock();
+ set_cur_block(cur_block);
+ create_condition_evaluation(binary_expression->left, true_block,
+ extra_block);
+ mature_immBlock(extra_block);
+ set_cur_block(extra_block);
+ create_condition_evaluation(binary_expression->right, true_block,
+ false_block);
+ return;
+ }
+ break;
+ }
+ default:
+ break;
+ }
+
+ dbg_info *dbgi = get_dbg_info(&expression->source_position);
+ ir_node *condition = expression_to_modeb(expression);
+ ir_node *cond = new_d_Cond(dbgi, condition);
+ ir_node *true_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_true);
+ ir_node *false_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_false);
+
+ add_immBlock_pred(true_block, true_proj);
+ add_immBlock_pred(false_block, false_proj);
+
+ set_cur_block(NULL);
+}
+
static void statement_to_firm(statement_t *statement);
static void return_statement_to_firm(return_statement_t *statement)
static void if_statement_to_firm(if_statement_t *statement)
{
- dbg_info *dbgi = get_dbg_info(&statement->statement.source_position);
- ir_node *condition = expression_to_modeb(statement->condition);
-
- /* make sure we have a mode_b condition */
- ir_node *cond = new_d_Cond(dbgi, condition);
- ir_node *true_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_true);
- ir_node *false_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_false);
+ ir_node *cur_block = get_cur_block();
ir_node *fallthrough_block = new_immBlock();
/* the true (blocks) */
- ir_node *true_block = new_immBlock();
- add_immBlock_pred(true_block, true_proj);
- mature_immBlock(true_block);
-
- 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;
if(statement->false_statement != NULL) {
- ir_node *false_block = new_immBlock();
- add_immBlock_pred(false_block, false_proj);
- mature_immBlock(false_block);
+ false_block = new_immBlock();
statement_to_firm(statement->false_statement);
if(get_cur_block() != NULL) {
add_immBlock_pred(fallthrough_block, jmp);
}
} else {
- add_immBlock_pred(fallthrough_block, false_proj);
+ 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);
static void while_statement_to_firm(while_statement_t *statement)
{
- dbg_info *dbgi = get_dbg_info(&statement->statement.source_position);
-
ir_node *jmp = NULL;
if(get_cur_block() != NULL) {
jmp = new_Jmp();
add_immBlock_pred(header_block, jmp);
}
- /* create the condition */
- ir_node *condition = expression_to_modeb(statement->condition);
- ir_node *cond = new_d_Cond(dbgi, condition);
- ir_node *true_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_true);
- ir_node *false_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_false);
-
/* the false block */
ir_node *false_block = new_immBlock();
- add_immBlock_pred(false_block, false_proj);
/* the loop body */
- ir_node *body_block = new_immBlock();
- add_immBlock_pred(body_block, true_proj);
- mature_immBlock(body_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;
- 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;
}
- 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 do_while_statement_to_firm(do_while_statement_t *statement)
{
- dbg_info *dbgi = get_dbg_info(&statement->statement.source_position);
-
ir_node *jmp = NULL;
if(get_cur_block() != NULL) {
jmp = new_Jmp();
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();
/* create the condition */
set_cur_block(header_block);
- ir_node *condition = expression_to_modeb(statement->condition);
- ir_node *cond = new_d_Cond(dbgi, condition);
- ir_node *true_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_true);
- ir_node *false_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_false);
- add_immBlock_pred(body_block, true_proj);
+ create_condition_evaluation(statement->condition, body_block, false_block);
mature_immBlock(body_block);
-
- add_immBlock_pred(false_block, false_proj);
mature_immBlock(false_block);
+ mature_immBlock(header_block);
set_cur_block(false_block);
}
static void for_statement_to_firm(for_statement_t *statement)
{
- dbg_info *const dbgi = get_dbg_info(&statement->statement.source_position);
-
ir_node *jmp = NULL;
if (get_cur_block() != NULL) {
if(statement->initialisation != NULL) {
if (statement->step != NULL) {
expression_to_firm(statement->step);
}
- ir_node *const step_jmp = new_Jmp();
+ ir_node *const step_jmp = new_Jmp();
/* create the header block */
ir_node *const header_block = new_immBlock();
}
add_immBlock_pred(header_block, step_jmp);
- /* create the condition */
- ir_node *true_proj;
- ir_node *false_proj;
- if (statement->condition != NULL) {
- ir_node *const condition = expression_to_modeb(statement->condition);
- ir_node *const cond = new_d_Cond(dbgi, condition);
- true_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_true);
- false_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_false);
- } else {
- keep_alive(header_block);
- true_proj = new_Jmp();
- false_proj = NULL;
- }
-
/* the false block */
ir_node *const false_block = new_immBlock();
- if (false_proj != NULL) {
- add_immBlock_pred(false_block, false_proj);
- }
/* the loop body */
- ir_node *const body_block = new_immBlock();
- add_immBlock_pred(body_block, true_proj);
- mature_immBlock(body_block);
-
- 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;
+ 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;
+ }
- if (get_cur_block() != NULL) {
- ir_node *const jmp = new_Jmp();
- add_immBlock_pred(step_block, jmp);
+ /* 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);
+ ir_node *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);
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)
{
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)
projects / cparser / blobdiff