static ir_node *continue_label;
static ir_node *break_label;
static ir_node *current_switch_cond;
+static bool saw_default_label;
static ir_node **imature_blocks;
typedef enum declaration_type_t {
void init_ast2firm(void)
{
type_const_char = make_atomic_type(ATOMIC_TYPE_CHAR, TYPE_QUALIFIER_CONST);
- type_void = make_atomic_type(ATOMIC_TYPE_VOID, 0);
- type_int = make_atomic_type(ATOMIC_TYPE_INT, 0);
+ type_void = make_atomic_type(ATOMIC_TYPE_VOID, TYPE_QUALIFIER_NONE);
+ type_int = make_atomic_type(ATOMIC_TYPE_INT, TYPE_QUALIFIER_NONE);
ir_type_int = get_ir_type(type_int);
ir_type_const_char = get_ir_type(type_const_char);
return mode_P;
}
- ir_mode *mode = get_type_mode(irtype);
+ ir_mode *mode = get_type_mode(irtype);
assert(mode != NULL);
return mode;
}
dbg_info *dbgi = get_dbg_info(&ref->expression.source_position);
declaration_t *declaration = ref->declaration;
type_t *type = skip_typeref(declaration->type);
- ir_mode *mode = get_ir_mode(type);
switch((declaration_type_t) declaration->declaration_type) {
case DECLARATION_TYPE_UNKNOWN:
break;
- case DECLARATION_TYPE_LOCAL_VARIABLE:
+ case DECLARATION_TYPE_LOCAL_VARIABLE: {
+ ir_mode *mode = get_ir_mode(type);
return get_value(declaration->v.value_number, mode);
+ }
case DECLARATION_TYPE_FUNCTION: {
return create_symconst(dbgi, declaration->v.entity);
}
return load_from_expression_addr(type, symconst, dbgi);
}
}
- case DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY:
+ 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);
+ }
+ }
+
case DECLARATION_TYPE_COMPOUND_MEMBER:
case DECLARATION_TYPE_LABEL_BLOCK:
panic("not implemented reference type");
ir_node *symconst = create_symconst(dbgi, entity);
return symconst;
}
- case DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY:
+ 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);
+
+ return sel;
+ }
case DECLARATION_TYPE_COMPOUND_MEMBER:
case DECLARATION_TYPE_LABEL_BLOCK:
panic("not implemented reference type");
return res;
}
+static ir_node *create_shift(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);
+
+ /* firm always wants the shift count to be unsigned */
+ right = create_conv(dbgi, right, mode_Iu);
+
+ ir_node *res;
+
+ switch(expression->type) {
+ case BINEXPR_SHIFTLEFT:
+ res = new_d_Shl(dbgi, left, right, mode);
+ break;
+ case BINEXPR_SHIFTRIGHT: {
+ expression_t *expr_left = expression->left;
+ type_t *type_left = skip_typeref(expr_left->datatype);
+
+ if(is_type_signed(type_left)) {
+ res = new_d_Shrs(dbgi, left, right, mode);
+ } else {
+ res = new_d_Shr(dbgi, left, right, mode);
+ }
+ break;
+ }
+ default:
+ panic("create shift op called for non-shift op");
+ }
+
+ return res;
+}
+
+
static ir_node *create_divmod(const binary_expression_t *expression)
{
dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
case BINEXPR_BITWISE_XOR:
return create_arithmetic_binop(expression, new_d_Eor);
case BINEXPR_SHIFTLEFT:
- return create_arithmetic_binop(expression, new_d_Shl);
case BINEXPR_SHIFTRIGHT:
- return create_arithmetic_binop(expression, new_d_Shr);
+ return create_shift(expression);
case BINEXPR_DIV:
case BINEXPR_MOD:
return create_divmod(expression);
return val;
}
+static ir_node *select_addr(const select_expression_t *expression)
+{
+ dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
+
+ ir_node *compound_addr = expression_to_firm(expression->compound);
+
+ declaration_t *entry = expression->compound_entry;
+ assert(entry->declaration_type == DECLARATION_TYPE_COMPOUND_MEMBER);
+ ir_entity *entity = entry->v.entity;
+
+ assert(entity != NULL);
+
+ ir_node *sel = new_d_simpleSel(dbgi, new_NoMem(), compound_addr, entity);
+
+ return sel;
+}
+
+static ir_node *select_to_firm(const select_expression_t *expression)
+{
+ 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);
+}
+
+static ir_node *dereference_addr(const unary_expression_t *const expression)
+{
+ assert(expression->type == UNEXPR_DEREFERENCE);
+ return expression_to_firm(expression->value);
+}
+
static ir_node *expression_to_addr(const expression_t *expression)
{
switch(expression->type) {
return reference_addr((const reference_expression_t*) expression);
case EXPR_ARRAY_ACCESS:
return array_access_addr((const array_access_expression_t*) expression);
+ case EXPR_SELECT:
+ return select_addr((const select_expression_t*) expression);
+ case EXPR_UNARY: {
+ const unary_expression_t *const unary_expr =
+ (const unary_expression_t*)expression;
+ if (unary_expr->type == UNEXPR_DEREFERENCE) {
+ return dereference_addr(unary_expr);
+ }
+ break;
+ }
default:
break;
}
return sizeof_to_firm((const sizeof_expression_t*) expression);
case EXPR_CONDITIONAL:
return conditional_to_firm((const conditional_expression_t*)expression);
- default:
+ case EXPR_SELECT:
+ return select_to_firm((const select_expression_t*) expression);
+ case EXPR_FUNCTION:
+ case EXPR_OFFSETOF:
+ case EXPR_PRETTY_FUNCTION:
+ case EXPR_VA_ARG:
+ case EXPR_STATEMENT:
+ case EXPR_BUILTIN_SYMBOL:
+ panic("unimplemented expression found");
+
+ case EXPR_UNKNOWN:
+ case EXPR_INVALID:
break;
}
- panic("unsupported expression found");
+ panic("invalid expression found");
}
static ir_node *expression_to_firm(const expression_t *expression)
{
- ir_node *res = _expression_to_firm(expression);
+ ir_node *res = _expression_to_firm(expression);
- if(expression->datatype == type_void)
- return NULL;
+ if(res != NULL && get_irn_mode(res) == mode_b) {
+ ir_mode *mode = get_ir_mode(expression->datatype);
+ res = create_conv(NULL, res, mode);
+ }
- ir_mode *mode = get_ir_mode(expression->datatype);
- res = create_conv(NULL, res, mode);
return res;
}
if(get_cur_block() == NULL) {
mature_immBlock(header_block);
mature_immBlock(body_block);
+ mature_immBlock(false_block);
return;
}
mature_immBlock(header_block);
/* 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);
static void create_local_variable(declaration_t *declaration)
{
+ assert(declaration->declaration_type == DECLARATION_TYPE_UNKNOWN);
+
bool needs_entity = declaration->address_taken;
+ type_t *type = skip_typeref(declaration->type);
- assert(declaration->declaration_type == DECLARATION_TYPE_UNKNOWN);
+ if(type->type == TYPE_ARRAY
+ || type->type == TYPE_COMPOUND_STRUCT
+ || type->type == TYPE_COMPOUND_UNION) {
+ needs_entity = true;
+ }
if(needs_entity) {
ir_type *frame_type = get_irg_frame_type(current_ir_graph);
static void create_jump_statement(const statement_t *statement,
ir_node *target_block)
{
+ if(get_cur_block() == NULL)
+ return;
+
dbg_info *dbgi = get_dbg_info(&statement->source_position);
ir_node *jump = new_d_Jmp(dbgi);
add_immBlock_pred(target_block, jump);
set_cur_block(NULL);
- ir_node *old_switch_cond = current_switch_cond;
- ir_node *old_break_label = break_label;
- current_switch_cond = cond;
- break_label = break_block;
+ ir_node *const old_switch_cond = current_switch_cond;
+ ir_node *const old_break_label = break_label;
+ const bool old_saw_default_label = saw_default_label;
+ current_switch_cond = cond;
+ break_label = break_block;
statement_to_firm(statement->body);
add_immBlock_pred(break_block, jmp);
}
+ if (!saw_default_label) {
+ set_cur_block(get_nodes_block(cond));
+ ir_node *const proj = new_d_defaultProj(dbgi, cond,
+ MAGIC_DEFAULT_PN_NUMBER);
+ add_immBlock_pred(break_block, proj);
+ }
+
assert(current_switch_cond == cond);
assert(break_label == break_block);
current_switch_cond = old_switch_cond;
break_label = old_break_label;
+ saw_default_label = old_saw_default_label;
mature_immBlock(break_block);
set_cur_block(break_block);
{
dbg_info *dbgi = get_dbg_info(&statement->statement.source_position);
+ ir_node *const fallthrough = (get_cur_block() == NULL ? NULL : new_Jmp());
+
/* let's create a node and hope firm constant folding creates a Const
* node... */
ir_node *proj;
}
proj = new_d_Proj(dbgi, current_switch_cond, mode_X, pn);
} else {
+ saw_default_label = true;
proj = new_d_defaultProj(dbgi, current_switch_cond,
MAGIC_DEFAULT_PN_NUMBER);
}
ir_node *block = new_immBlock();
+ if (fallthrough != NULL) {
+ add_immBlock_pred(block, fallthrough);
+ }
add_immBlock_pred(block, proj);
mature_immBlock(block);
}
declaration_t *parameter = declaration->context.declarations;
for( ; parameter != NULL; parameter = parameter->next) {
assert(parameter->declaration_type == DECLARATION_TYPE_UNKNOWN);
+ type_t *type = parameter->type;
+
+ bool needs_entity = parameter->address_taken;
+ if(type->type == TYPE_COMPOUND_STRUCT
+ || type->type == TYPE_COMPOUND_UNION) {
+ needs_entity = true;
+ }
- if(parameter->address_taken) {
- panic("address take from parameter not implemented yet");
+ if(needs_entity) {
+ panic("entities for function parameters not implemented yet");
}
ir_mode *mode = get_ir_mode(parameter->type);
projects / cparser / blobdiff