static void semantic_comparison(binary_expression_t *expression);
+static void create_gnu_builtins(void);
+static void create_microsoft_intrinsics(void);
+
#define STORAGE_CLASSES \
STORAGE_CLASSES_NO_EXTERN \
case T_extern:
case T___FUNCTION__: \
case T___PRETTY_FUNCTION__: \
case T___alignof__: \
- case T___builtin_alloca: \
case T___builtin_classify_type: \
case T___builtin_constant_p: \
- case T___builtin_expect: \
- case T___builtin_huge_val: \
- case T___builtin_inf: \
- case T___builtin_inff: \
- case T___builtin_infl: \
case T___builtin_isgreater: \
case T___builtin_isgreaterequal: \
case T___builtin_isless: \
case T___builtin_islessequal: \
case T___builtin_islessgreater: \
case T___builtin_isunordered: \
- case T___builtin_nan: \
- case T___builtin_nanf: \
- case T___builtin_nanl: \
case T___builtin_offsetof: \
- case T___builtin_prefetch: \
case T___builtin_va_arg: \
- case T___builtin_va_end: \
case T___builtin_va_start: \
case T___func__: \
case T___noop: \
[EXPR_ALIGNOF] = sizeof(typeprop_expression_t),
[EXPR_CLASSIFY_TYPE] = sizeof(classify_type_expression_t),
[EXPR_FUNCNAME] = sizeof(funcname_expression_t),
- [EXPR_BUILTIN_SYMBOL] = sizeof(builtin_symbol_expression_t),
[EXPR_BUILTIN_CONSTANT_P] = sizeof(builtin_constant_expression_t),
[EXPR_BUILTIN_TYPES_COMPATIBLE_P] = sizeof(builtin_types_compatible_expression_t),
[EXPR_OFFSETOF] = sizeof(offsetof_expression_t),
case EXPR_CLASSIFY_TYPE:
case EXPR_ALIGNOF:
case EXPR_FUNCNAME:
- case EXPR_BUILTIN_SYMBOL:
case EXPR_BUILTIN_CONSTANT_P:
case EXPR_BUILTIN_TYPES_COMPATIBLE_P:
case EXPR_OFFSETOF:
case EXPR_SIZEOF: // TODO handle obscure VLA case
case EXPR_ALIGNOF:
case EXPR_FUNCNAME:
- case EXPR_BUILTIN_SYMBOL:
case EXPR_BUILTIN_CONSTANT_P:
case EXPR_BUILTIN_TYPES_COMPATIBLE_P:
case EXPR_OFFSETOF:
}
/**
- * Creates a function type for some function like builtins.
+ * Creates a NO_RETURN return_type (func)(void) function type if not
+ * already exists.
*
- * @param symbol the symbol describing the builtin
- */
-static type_t *get_builtin_symbol_type(symbol_t *symbol)
-{
- switch (symbol->ID) {
- case T___builtin_alloca:
- return make_function_1_type(type_void_ptr, type_size_t);
- case T___builtin_huge_val:
- return make_function_0_type(type_double);
- case T___builtin_inf:
- return make_function_0_type(type_double);
- case T___builtin_inff:
- return make_function_0_type(type_float);
- case T___builtin_infl:
- return make_function_0_type(type_long_double);
- case T___builtin_nan:
- return make_function_1_type(type_double, type_char_ptr);
- case T___builtin_nanf:
- return make_function_1_type(type_float, type_char_ptr);
- case T___builtin_nanl:
- return make_function_1_type(type_long_double, type_char_ptr);
- case T___builtin_va_end:
- return make_function_1_type(type_void, type_valist);
- case T___builtin_expect:
- return make_function_2_type(type_long, type_long, type_long);
- case T___builtin_return_address:
- case T___builtin_frame_address:
- return make_function_1_type(type_void_ptr, type_unsigned_int);
- case T___builtin_ffs:
- case T___builtin_clz:
- case T___builtin_ctz:
- case T___builtin_popcount:
- case T___builtin_parity:
- return make_function_1_type(type_int, type_unsigned_int);
- case T___builtin_prefetch:
- return make_function_1_type_variadic(type_float, type_void_ptr);
- default:
- internal_errorf(HERE, "not implemented builtin identifier found");
- }
+ * @param return_type the return type
+ */
+static type_t *make_function_0_type_noreturn(type_t *return_type)
+{
+ type_t *type = allocate_type_zero(TYPE_FUNCTION);
+ type->function.return_type = return_type;
+ type->function.parameters = NULL;
+ type->function.base.modifiers |= DM_NORETURN;
+ return type;
+
+ return identify_new_type(type);
}
/**
return type->pointer.points_to;
}
- case EXPR_BUILTIN_SYMBOL:
- return get_builtin_symbol_type(expression->builtin_symbol.symbol);
-
case EXPR_ARRAY_ACCESS: {
const expression_t *array_ref = expression->array_access.array_ref;
type_t *type_left = skip_typeref(array_ref->base.type);
return create_invalid_expression();
}
-static expression_t *parse_builtin_symbol(void)
-{
- expression_t *expression = allocate_expression_zero(EXPR_BUILTIN_SYMBOL);
-
- symbol_t *symbol = token.v.symbol;
-
- expression->builtin_symbol.symbol = symbol;
- next_token();
-
- type_t *type = get_builtin_symbol_type(symbol);
- type = automatic_type_conversion(type);
-
- expression->base.type = type;
- return expression;
-}
-
/**
* Parses a __builtin_constant_p() expression.
*/
case T___builtin_offsetof: return parse_offsetof();
case T___builtin_va_start: return parse_va_start();
case T___builtin_va_arg: return parse_va_arg();
- case T___builtin_expect:
- case T___builtin_alloca:
- case T___builtin_inf:
- case T___builtin_inff:
- case T___builtin_infl:
- case T___builtin_nan:
- case T___builtin_nanf:
- case T___builtin_nanl:
- case T___builtin_huge_val:
- case T___builtin_va_end:
- case T___builtin_return_address:
- case T___builtin_frame_address:
- case T___builtin_ffs:
- case T___builtin_clz:
- case T___builtin_ctz:
- case T___builtin_popcount:
- case T___builtin_parity:
- case T___builtin_prefetch: return parse_builtin_symbol();
case T___builtin_isgreater:
case T___builtin_isgreaterequal:
case T___builtin_isless:
* Handle the semantic restrictions of builtin calls
*/
static void handle_builtin_argument_restrictions(call_expression_t *call) {
- switch (call->function->builtin_symbol.symbol->ID) {
- case T___builtin_return_address:
- case T___builtin_frame_address: {
+ switch (call->function->reference.entity->function.btk) {
+ case bk_gnu_builtin_return_address:
+ case bk_gnu_builtin_frame_address: {
/* argument must be constant */
call_argument_t *argument = call->arguments;
if (! is_constant_expression(argument->expression)) {
errorf(&call->base.source_position,
"argument of '%Y' must be a constant expression",
- call->function->builtin_symbol.symbol);
+ call->function->reference.entity->base.symbol);
}
break;
}
- case T___builtin_prefetch: {
- /* second and third argument must be constant if existant */
+ case bk_gnu_builtin_prefetch: {
+ /* second and third argument must be constant if existent */
call_argument_t *rw = call->arguments->next;
call_argument_t *locality = NULL;
if (! is_constant_expression(rw->expression)) {
errorf(&call->base.source_position,
"second argument of '%Y' must be a constant expression",
- call->function->builtin_symbol.symbol);
+ call->function->reference.entity->base.symbol);
}
locality = rw->next;
}
if (! is_constant_expression(locality->expression)) {
errorf(&call->base.source_position,
"third argument of '%Y' must be a constant expression",
- call->function->builtin_symbol.symbol);
+ call->function->reference.entity->base.symbol);
}
locality = rw->next;
}
"function call has aggregate value");
}
- if (call->function->kind == EXPR_BUILTIN_SYMBOL) {
- handle_builtin_argument_restrictions(&result->call);
+ if (call->function->kind == EXPR_REFERENCE) {
+ reference_expression_t *reference = &call->function->reference;
+ if (reference->entity->kind == ENTITY_FUNCTION &&
+ reference->entity->function.btk != bk_none)
+ handle_builtin_argument_restrictions(call);
}
end_error:
case EXPR_CALL: {
const call_expression_t *const call = &expr->call;
- if (call->function->kind != EXPR_BUILTIN_SYMBOL)
+ if (call->function->kind != EXPR_REFERENCE)
return true;
- switch (call->function->builtin_symbol.symbol->ID) {
- case T___builtin_prefetch:
- case T___builtin_va_end: return true;
- default: return false;
+ switch (call->function->reference.entity->function.btk) {
+ case bk_gnu_builtin_prefetch:
+ case bk_gnu_builtin_va_end: return true;
+ default: return false;
}
}
case EXPR_ALIGNOF: return false;
case EXPR_FUNCNAME: return false;
- case EXPR_BUILTIN_SYMBOL: break; /* handled in EXPR_CALL */
case EXPR_BUILTIN_CONSTANT_P: return false;
case EXPR_BUILTIN_TYPES_COMPATIBLE_P: return false;
case EXPR_OFFSETOF: return false;
assert(current_scope == NULL);
scope_push(&unit->scope);
+
+ create_gnu_builtins();
+ if (c_mode & _MS)
+ create_microsoft_intrinsics();
}
translation_unit_t *finish_parsing(void)
incomplete_arrays = NULL;
}
+/**
+ * create a builtin function.
+ */
+static entity_t *create_builtin_function(builtin_kind_t kind, const char *name, type_t *function_type)
+{
+ symbol_t *symbol = symbol_table_insert(name);
+ entity_t *entity = allocate_entity_zero(ENTITY_FUNCTION);
+ entity->declaration.storage_class = STORAGE_CLASS_EXTERN;
+ entity->declaration.declared_storage_class = STORAGE_CLASS_EXTERN;
+ entity->declaration.type = function_type;
+ entity->declaration.implicit = true;
+ entity->base.symbol = symbol;
+ entity->base.source_position = builtin_source_position;
+
+ entity->function.btk = kind;
+
+ record_entity(entity, /*is_definition=*/false);
+ return entity;
+}
+
+
+/**
+ * Create predefined gnu builtins.
+ */
+static void create_gnu_builtins(void) {
+#define _STR(a) #a
+#define STR(a) _STR(a)
+#define CONCAT(a,b) a##b
+#define GNU_BUILTIN_NAME(a) STR(CONCAT(__builtin_, a))
+#define GNU_BUILTIN(a, b) create_builtin_function(CONCAT(bk_gnu_builtin_, a), GNU_BUILTIN_NAME(a), b)
+
+ GNU_BUILTIN(alloca, make_function_1_type(type_void_ptr, type_size_t));
+ GNU_BUILTIN(huge_val, make_function_0_type(type_double));
+ GNU_BUILTIN(inf, make_function_0_type(type_double));
+ GNU_BUILTIN(inff, make_function_0_type(type_float));
+ GNU_BUILTIN(infl, make_function_0_type(type_long_double));
+ GNU_BUILTIN(nan, make_function_1_type(type_double, type_char_ptr));
+ GNU_BUILTIN(nanf, make_function_1_type(type_float, type_char_ptr));
+ GNU_BUILTIN(nanl, make_function_1_type(type_long_double, type_char_ptr));
+ GNU_BUILTIN(va_end, make_function_1_type(type_void, type_valist));
+ GNU_BUILTIN(expect, make_function_2_type(type_long, type_long, type_long));
+ GNU_BUILTIN(return_address, make_function_1_type(type_void_ptr, type_unsigned_int));
+ GNU_BUILTIN(frame_address, make_function_1_type(type_void_ptr, type_unsigned_int));
+ GNU_BUILTIN(ffs, make_function_1_type(type_int, type_unsigned_int));
+ GNU_BUILTIN(clz, make_function_1_type(type_int, type_unsigned_int));
+ GNU_BUILTIN(ctz, make_function_1_type(type_int, type_unsigned_int));
+ GNU_BUILTIN(popcount, make_function_1_type(type_int, type_unsigned_int));
+ GNU_BUILTIN(parity, make_function_1_type(type_int, type_unsigned_int));
+ GNU_BUILTIN(prefetch, make_function_1_type_variadic(type_float, type_void_ptr));
+ GNU_BUILTIN(trap, make_function_0_type_noreturn(type_void));
+
+#undef GNU_BUILTIN
+#undef GNU_BUILTIN_NAME
+#undef CONCAT
+#undef STR
+#undef _STR
+}
+
+/**
+ * Create predefined MS intrinsics.
+ */
+static void create_microsoft_intrinsics(void) {
+#define _STR(a) #a
+#define STR(a) _STR(a)
+#define CONCAT(a,b) a##b
+#define MS_BUILTIN(a, b) create_builtin_function(CONCAT(bk_ms, a), STR(a), b)
+
+ MS_BUILTIN(__debugbreak, make_function_0_type(type_void));
+ MS_BUILTIN(_ReturnAddress, make_function_0_type(type_void_ptr));
+ MS_BUILTIN(__popcount, make_function_1_type(type_unsigned_int, type_unsigned_int));
+ MS_BUILTIN(__ud2, make_function_0_type_noreturn(type_void));
+
+#undef MS_BUILTIN
+#undef CONCAT
+#undef STR
+#undef _STR
+}
+
/**
* Initialize the parser.
*/
projects / cparser / blobdiff