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)
-{
- 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;
-}
-
static ir_node *deref_address(type_t *const type, ir_node *const addr,
dbg_info *const dbgi)
{
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;
}
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)
{
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);
+ 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();
+ ir_node *cur_block = get_cur_block();
- /* 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 *one_block = new_immBlock();
+ ir_node *one = new_Const(mode, get_mode_one(mode));
+ ir_node *jmp_one = new_d_Jmp(dbgi);
- mature_immBlock(calc_val2_block);
+ ir_node *zero_block = new_immBlock();
+ ir_node *zero = new_Const(mode, get_mode_null(mode));
+ ir_node *jmp_zero = 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);
- }
-
- /* 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;
}
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;
- }
-
- 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;
+ assert(type_right->type == TYPE_POINTER || type_right->type == TYPE_ARRAY);
+ return pointer_arithmetic(right, left, type, dbgi, new_d_Add);
}
-
- 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 *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;
+ body_block = new_immBlock();
+ 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) {
- 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);
projects / cparser / blobdiff