static void intern_print_type_pre(const type_t *type, bool top);
static void intern_print_type_post(const type_t *type, bool top);
+typedef struct atomic_type_properties_t atomic_type_properties_t;
+struct atomic_type_properties_t {
+ unsigned size; /**< type size in bytes */
+ unsigned alignment; /**< type alignment in bytes */
+ unsigned flags; /**< type flags from atomic_type_flag_t */
+};
+
+static atomic_type_properties_t atomic_type_properties[ATOMIC_TYPE_LAST+1] = {
+ //ATOMIC_TYPE_INVALID = 0,
+ [ATOMIC_TYPE_VOID] = {
+ .size = 0,
+ .alignment = 0,
+ .flags = ATOMIC_TYPE_FLAG_NONE
+ },
+ [ATOMIC_TYPE_CHAR] = {
+ .size = 1,
+ .alignment = 1,
+ /* signed flag will be set when known */
+ .flags = ATOMIC_TYPE_FLAG_INTEGER | ATOMIC_TYPE_FLAG_ARITHMETIC,
+ },
+ [ATOMIC_TYPE_SCHAR] = {
+ .size = 1,
+ .alignment = 1,
+ .flags = ATOMIC_TYPE_FLAG_INTEGER | ATOMIC_TYPE_FLAG_ARITHMETIC
+ | ATOMIC_TYPE_FLAG_SIGNED,
+ },
+ [ATOMIC_TYPE_UCHAR] = {
+ .size = 1,
+ .alignment = 1,
+ .flags = ATOMIC_TYPE_FLAG_INTEGER | ATOMIC_TYPE_FLAG_ARITHMETIC,
+ },
+ [ATOMIC_TYPE_SHORT] = {
+ .size = 2,
+ .alignment = 2,
+ .flags = ATOMIC_TYPE_FLAG_INTEGER | ATOMIC_TYPE_FLAG_ARITHMETIC
+ | ATOMIC_TYPE_FLAG_SIGNED
+ },
+ [ATOMIC_TYPE_USHORT] = {
+ .size = 2,
+ .alignment = 2,
+ .flags = ATOMIC_TYPE_FLAG_INTEGER | ATOMIC_TYPE_FLAG_ARITHMETIC,
+ },
+ [ATOMIC_TYPE_INT] = {
+ .size = (unsigned) -1,
+ .alignment = (unsigned) -1,
+ .flags = ATOMIC_TYPE_FLAG_INTEGER | ATOMIC_TYPE_FLAG_ARITHMETIC
+ | ATOMIC_TYPE_FLAG_SIGNED,
+ },
+ [ATOMIC_TYPE_UINT] = {
+ .size = (unsigned) -1,
+ .alignment = (unsigned) -1,
+ .flags = ATOMIC_TYPE_FLAG_INTEGER | ATOMIC_TYPE_FLAG_ARITHMETIC,
+ },
+ [ATOMIC_TYPE_LONG] = {
+ .size = (unsigned) -1,
+ .alignment = (unsigned) -1,
+ .flags = ATOMIC_TYPE_FLAG_INTEGER | ATOMIC_TYPE_FLAG_ARITHMETIC
+ | ATOMIC_TYPE_FLAG_SIGNED,
+ },
+ [ATOMIC_TYPE_ULONG] = {
+ .size = (unsigned) -1,
+ .alignment = (unsigned) -1,
+ .flags = ATOMIC_TYPE_FLAG_INTEGER | ATOMIC_TYPE_FLAG_ARITHMETIC,
+ },
+ [ATOMIC_TYPE_LONGLONG] = {
+ .size = (unsigned) -1,
+ .alignment = (unsigned) -1,
+ .flags = ATOMIC_TYPE_FLAG_INTEGER | ATOMIC_TYPE_FLAG_ARITHMETIC
+ | ATOMIC_TYPE_FLAG_SIGNED,
+ },
+ [ATOMIC_TYPE_ULONGLONG] = {
+ .size = (unsigned) -1,
+ .alignment = (unsigned) -1,
+ .flags = ATOMIC_TYPE_FLAG_INTEGER | ATOMIC_TYPE_FLAG_ARITHMETIC,
+ },
+ [ATOMIC_TYPE_BOOL] = {
+ .size = (unsigned) -1,
+ .alignment = (unsigned) -1,
+ .flags = ATOMIC_TYPE_FLAG_INTEGER | ATOMIC_TYPE_FLAG_ARITHMETIC,
+ },
+ [ATOMIC_TYPE_FLOAT] = {
+ .size = 4,
+ .alignment = (unsigned) -1,
+ .flags = ATOMIC_TYPE_FLAG_FLOAT | ATOMIC_TYPE_FLAG_ARITHMETIC
+ | ATOMIC_TYPE_FLAG_SIGNED,
+ },
+ [ATOMIC_TYPE_DOUBLE] = {
+ .size = 8,
+ .alignment = (unsigned) -1,
+ .flags = ATOMIC_TYPE_FLAG_FLOAT | ATOMIC_TYPE_FLAG_ARITHMETIC
+ | ATOMIC_TYPE_FLAG_SIGNED,
+ },
+ [ATOMIC_TYPE_LONG_DOUBLE] = {
+ .size = 12,
+ .alignment = (unsigned) -1,
+ .flags = ATOMIC_TYPE_FLAG_FLOAT | ATOMIC_TYPE_FLAG_ARITHMETIC
+ | ATOMIC_TYPE_FLAG_SIGNED,
+ },
+ /* complex and imaginary types are set in init_types */
+};
+
void init_types(void)
{
obstack_init(type_obst);
+
+ atomic_type_properties_t *props = atomic_type_properties;
+
+ if (char_is_signed) {
+ props[ATOMIC_TYPE_CHAR].flags |= ATOMIC_TYPE_FLAG_SIGNED;
+ }
+
+ unsigned int_size = machine_size < 32 ? 2 : 4;
+ unsigned long_size = machine_size < 64 ? 4 : 8;
+ unsigned llong_size = machine_size < 32 ? 4 : 8;
+
+ props[ATOMIC_TYPE_INT].size = int_size;
+ props[ATOMIC_TYPE_INT].alignment = int_size;
+ props[ATOMIC_TYPE_UINT].size = int_size;
+ props[ATOMIC_TYPE_UINT].alignment = int_size;
+ props[ATOMIC_TYPE_LONG].size = long_size;
+ props[ATOMIC_TYPE_LONG].alignment = long_size;
+ props[ATOMIC_TYPE_ULONG].size = long_size;
+ props[ATOMIC_TYPE_ULONG].alignment = long_size;
+ props[ATOMIC_TYPE_LONGLONG].size = llong_size;
+ props[ATOMIC_TYPE_LONGLONG].alignment = llong_size;
+ props[ATOMIC_TYPE_ULONGLONG].size = llong_size;
+ props[ATOMIC_TYPE_ULONGLONG].alignment = llong_size;
+
+ /* TODO: backend specific, need a way to query the backend for this.
+ * The following are good settings for x86 */
+ props[ATOMIC_TYPE_FLOAT].alignment = 4;
+ props[ATOMIC_TYPE_DOUBLE].alignment = 4;
+ props[ATOMIC_TYPE_LONG_DOUBLE].alignment = 4;
+ props[ATOMIC_TYPE_LONGLONG].alignment = 4;
+ props[ATOMIC_TYPE_ULONGLONG].alignment = 4;
+
+ props[ATOMIC_TYPE_BOOL] = props[ATOMIC_TYPE_UINT];
}
void exit_types(void)
void print_type_qualifiers(type_qualifiers_t qualifiers)
{
- if(qualifiers & TYPE_QUALIFIER_CONST) fputs("const ", out);
- if(qualifiers & TYPE_QUALIFIER_VOLATILE) fputs("volatile ", out);
- if(qualifiers & TYPE_QUALIFIER_RESTRICT) fputs("restrict ", out);
+ int first = 1;
+ if (qualifiers & TYPE_QUALIFIER_CONST) {
+ fputs(" const" + first, out);
+ first = 0;
+ }
+ if (qualifiers & TYPE_QUALIFIER_VOLATILE) {
+ fputs(" volatile" + first, out);
+ first = 0;
+ }
+ if (qualifiers & TYPE_QUALIFIER_RESTRICT) {
+ fputs(" restrict" + first, out);
+ first = 0;
+ }
}
/**
- * Prints the name of a atomic type.
+ * Prints the name of an atomic type kinds.
*
- * @param type The type.
+ * @param kind The type kind.
*/
static
-void print_atomic_type(const atomic_type_t *type)
+void print_atomic_kinds(atomic_type_kind_t kind)
{
- print_type_qualifiers(type->type.qualifiers);
-
const char *s = "INVALIDATOMIC";
- switch((atomic_type_kind_t) type->akind) {
- case ATOMIC_TYPE_INVALID: break;
- case ATOMIC_TYPE_VOID: s = "void"; break;
- case ATOMIC_TYPE_BOOL: s = "_Bool"; break;
- case ATOMIC_TYPE_CHAR: s = "char"; break;
- case ATOMIC_TYPE_SCHAR: s = "signed char"; break;
- case ATOMIC_TYPE_UCHAR: s = "unsigned char"; break;
- case ATOMIC_TYPE_INT: s = "int"; break;
- case ATOMIC_TYPE_UINT: s = "unsigned int"; break;
- case ATOMIC_TYPE_SHORT: s = "short"; break;
- case ATOMIC_TYPE_USHORT: s = "unsigned short"; break;
- case ATOMIC_TYPE_LONG: s = "long"; break;
- case ATOMIC_TYPE_ULONG: s = "unsigned long"; break;
- case ATOMIC_TYPE_LONGLONG: s = "long long"; break;
- case ATOMIC_TYPE_ULONGLONG: s = "unsigned long long"; break;
- case ATOMIC_TYPE_LONG_DOUBLE: s = "long double"; break;
- case ATOMIC_TYPE_FLOAT: s = "float"; break;
- case ATOMIC_TYPE_DOUBLE: s = "double"; break;
- case ATOMIC_TYPE_FLOAT_COMPLEX: s = "_Complex float"; break;
- case ATOMIC_TYPE_DOUBLE_COMPLEX: s = "_Complex float"; break;
- case ATOMIC_TYPE_LONG_DOUBLE_COMPLEX: s = "_Complex float"; break;
- case ATOMIC_TYPE_FLOAT_IMAGINARY: s = "_Imaginary float"; break;
- case ATOMIC_TYPE_DOUBLE_IMAGINARY: s = "_Imaginary float"; break;
- case ATOMIC_TYPE_LONG_DOUBLE_IMAGINARY: s = "_Imaginary float"; break;
+ switch(kind) {
+ case ATOMIC_TYPE_INVALID: break;
+ case ATOMIC_TYPE_VOID: s = "void"; break;
+ case ATOMIC_TYPE_BOOL: s = "_Bool"; break;
+ case ATOMIC_TYPE_CHAR: s = "char"; break;
+ case ATOMIC_TYPE_SCHAR: s = "signed char"; break;
+ case ATOMIC_TYPE_UCHAR: s = "unsigned char"; break;
+ case ATOMIC_TYPE_INT: s = "int"; break;
+ case ATOMIC_TYPE_UINT: s = "unsigned int"; break;
+ case ATOMIC_TYPE_SHORT: s = "short"; break;
+ case ATOMIC_TYPE_USHORT: s = "unsigned short"; break;
+ case ATOMIC_TYPE_LONG: s = "long"; break;
+ case ATOMIC_TYPE_ULONG: s = "unsigned long"; break;
+ case ATOMIC_TYPE_LONGLONG: s = "long long"; break;
+ case ATOMIC_TYPE_ULONGLONG: s = "unsigned long long"; break;
+ case ATOMIC_TYPE_LONG_DOUBLE: s = "long double"; break;
+ case ATOMIC_TYPE_FLOAT: s = "float"; break;
+ case ATOMIC_TYPE_DOUBLE: s = "double"; break;
}
fputs(s, out);
}
+/**
+ * Prints the name of an atomic type.
+ *
+ * @param type The type.
+ */
+static
+void print_atomic_type(const atomic_type_t *type)
+{
+ print_type_qualifiers(type->base.qualifiers);
+ if (type->base.qualifiers != 0)
+ fputc(' ', out);
+ print_atomic_kinds(type->akind);
+}
+
+/**
+ * Prints the name of a complex type.
+ *
+ * @param type The type.
+ */
+static
+void print_complex_type(const complex_type_t *type)
+{
+ int empty = type->base.qualifiers == 0;
+ print_type_qualifiers(type->base.qualifiers);
+ fputs(" _Complex " + empty, out);
+ print_atomic_kinds(type->akind);
+}
+
+/**
+ * Prints the name of an imaginary type.
+ *
+ * @param type The type.
+ */
+static
+void print_imaginary_type(const imaginary_type_t *type)
+{
+ int empty = type->base.qualifiers == 0;
+ print_type_qualifiers(type->base.qualifiers);
+ fputs(" _Imaginary " + empty, out);
+ print_atomic_kinds(type->akind);
+}
+
/**
* Print the first part (the prefix) of a type.
*
*/
static void print_function_type_pre(const function_type_t *type, bool top)
{
- print_type_qualifiers(type->type.qualifiers);
+ print_type_qualifiers(type->base.qualifiers);
+ if (type->base.qualifiers != 0)
+ fputc(' ', out);
+
intern_print_type_pre(type->return_type, false);
- /* don't emit braces if we're the toplevel type... */
- if(!top)
+ switch (type->calling_convention) {
+ case CC_CDECL:
+ fputs("__cdecl ", out);
+ break;
+ case CC_STDCALL:
+ fputs("__stdcall ", out);
+ break;
+ case CC_FASTCALL:
+ fputs("__fastcall ", out);
+ break;
+ case CC_THISCALL:
+ fputs("__thiscall ", out);
+ break;
+ case CC_DEFAULT:
+ break;
+ }
+
+ /* don't emit parenthesis if we're the toplevel type... */
+ if (!top)
fputc('(', out);
}
static void print_function_type_post(const function_type_t *type,
const scope_t *scope, bool top)
{
- intern_print_type_post(type->return_type, false);
- /* don't emit braces if we're the toplevel type... */
- if(!top)
+ /* don't emit parenthesis if we're the toplevel type... */
+ if (!top)
fputc(')', out);
fputc('(', out);
-
- int first = 1;
- if(scope == NULL) {
+ bool first = true;
+ if (scope == NULL) {
function_parameter_t *parameter = type->parameters;
for( ; parameter != NULL; parameter = parameter->next) {
- if(first) {
- first = 0;
+ if (first) {
+ first = false;
} else {
fputs(", ", out);
}
} else {
declaration_t *parameter = scope->declarations;
for( ; parameter != NULL; parameter = parameter->next) {
- if(first) {
- first = 0;
+ if (first) {
+ first = false;
} else {
fputs(", ", out);
}
¶meter->scope);
}
}
- if(type->variadic) {
- if(first) {
- first = 0;
+ if (type->variadic) {
+ if (first) {
+ first = false;
} else {
fputs(", ", out);
}
fputs("...", out);
}
- if(first && !type->unspecified_parameters) {
+ if (first && !type->unspecified_parameters) {
fputs("void", out);
}
fputc(')', out);
+
+ intern_print_type_post(type->return_type, false);
}
/**
{
intern_print_type_pre(type->points_to, false);
fputs("*", out);
- print_type_qualifiers(type->type.qualifiers);
+ print_type_qualifiers(type->base.qualifiers);
+ if (type->base.qualifiers != 0)
+ fputc(' ', out);
}
/**
static void print_array_type_post(const array_type_t *type)
{
fputc('[', out);
- if(type->is_static) {
+ if (type->is_static) {
fputs("static ", out);
}
- print_type_qualifiers(type->type.qualifiers);
- if(type->size_expression != NULL
+ print_type_qualifiers(type->base.qualifiers);
+ if (type->base.qualifiers != 0)
+ fputc(' ', out);
+ if (type->size_expression != NULL
&& (print_implicit_array_size || !type->has_implicit_size)) {
print_expression(type->size_expression);
}
static void print_bitfield_type_post(const bitfield_type_t *type)
{
fputs(" : ", out);
- print_expression(type->size);
- intern_print_type_post(type->base, false);
+ print_expression(type->size_expression);
+ intern_print_type_post(type->base_type, false);
}
/**
print_indent();
fprintf(out, "%s", entry->symbol->string);
- if(entry->init.initializer != NULL) {
+ if (entry->init.initializer != NULL) {
fprintf(out, " = ");
/* skip the implicit cast */
expression_t *expression = entry->init.enum_value;
- if(expression->kind == EXPR_UNARY_CAST_IMPLICIT) {
+ if (expression->kind == EXPR_UNARY_CAST_IMPLICIT) {
expression = expression->unary.value;
}
print_expression(expression);
*/
static void print_type_enum(const enum_type_t *type)
{
- print_type_qualifiers(type->type.qualifiers);
- fputs("enum ", out);
+ int empty = type->base.qualifiers == 0;
+ print_type_qualifiers(type->base.qualifiers);
+ fputs(" enum " + empty, out);
declaration_t *declaration = type->declaration;
symbol_t *symbol = declaration->symbol;
- if(symbol != NULL) {
+ if (symbol != NULL) {
fputs(symbol->string, out);
} else {
print_enum_definition(declaration);
*/
static void print_compound_type(const compound_type_t *type)
{
- print_type_qualifiers(type->type.qualifiers);
+ int empty = type->base.qualifiers == 0;
+ print_type_qualifiers(type->base.qualifiers);
- if(type->type.kind == TYPE_COMPOUND_STRUCT) {
- fputs("struct ", out);
+ if (type->base.kind == TYPE_COMPOUND_STRUCT) {
+ fputs(" struct " + empty, out);
} else {
- assert(type->type.kind == TYPE_COMPOUND_UNION);
- fputs("union ", out);
+ assert(type->base.kind == TYPE_COMPOUND_UNION);
+ fputs(" union " + empty, out);
}
declaration_t *declaration = type->declaration;
symbol_t *symbol = declaration->symbol;
- if(symbol != NULL) {
+ if (symbol != NULL) {
fputs(symbol->string, out);
} else {
print_compound_definition(declaration);
*/
static void print_typedef_type_pre(const typedef_type_t *const type)
{
- print_type_qualifiers(type->type.qualifiers);
+ print_type_qualifiers(type->base.qualifiers);
+ if (type->base.qualifiers != 0)
+ fputc(' ', out);
fputs(type->declaration->symbol->string, out);
}
static void print_typeof_type_pre(const typeof_type_t *const type)
{
fputs("typeof(", out);
- if(type->expression != NULL) {
+ if (type->expression != NULL) {
assert(type->typeof_type == NULL);
print_expression(type->expression);
} else {
switch(type->kind) {
case TYPE_ERROR:
fputs("<error>", out);
+ return;
case TYPE_INVALID:
fputs("<invalid>", out);
return;
case TYPE_ATOMIC:
print_atomic_type(&type->atomic);
return;
+ case TYPE_COMPLEX:
+ print_complex_type(&type->complex);
+ return;
+ case TYPE_IMAGINARY:
+ print_imaginary_type(&type->imaginary);
+ return;
case TYPE_COMPOUND_STRUCT:
case TYPE_COMPOUND_UNION:
print_compound_type(&type->compound);
print_pointer_type_pre(&type->pointer);
return;
case TYPE_BITFIELD:
- intern_print_type_pre(type->bitfield.base, top);
+ intern_print_type_pre(type->bitfield.base_type, top);
return;
case TYPE_ARRAY:
print_array_type_pre(&type->array);
case TYPE_ERROR:
case TYPE_INVALID:
case TYPE_ATOMIC:
+ case TYPE_COMPLEX:
+ case TYPE_IMAGINARY:
case TYPE_ENUM:
case TYPE_COMPOUND_STRUCT:
case TYPE_COMPOUND_UNION:
void print_type_ext(const type_t *const type, const symbol_t *symbol,
const scope_t *scope)
{
- if(type == NULL) {
+ if (type == NULL) {
fputs("nil type", out);
return;
}
intern_print_type_pre(type, true);
- if(symbol != NULL) {
+ if (symbol != NULL) {
fputc(' ', out);
fputs(symbol->string, out);
}
- if(type->kind == TYPE_FUNCTION) {
+ if (type->kind == TYPE_FUNCTION) {
print_function_type_post(&type->function, scope, true);
} else {
intern_print_type_post(type, true);
{
switch(type->kind) {
case TYPE_ATOMIC: return sizeof(atomic_type_t);
+ case TYPE_COMPLEX: return sizeof(complex_type_t);
+ case TYPE_IMAGINARY: return sizeof(imaginary_type_t);
case TYPE_COMPOUND_STRUCT:
case TYPE_COMPOUND_UNION: return sizeof(compound_type_t);
case TYPE_ENUM: return sizeof(enum_type_t);
*/
type_t *get_unqualified_type(type_t *type)
{
- if(type->base.qualifiers == TYPE_QUALIFIER_NONE)
+ assert(!is_typeref(type));
+
+ if (type->base.qualifiers == TYPE_QUALIFIER_NONE)
return type;
type_t *unqualified_type = duplicate_type(type);
unqualified_type->base.qualifiers = TYPE_QUALIFIER_NONE;
type_t *result = typehash_insert(unqualified_type);
- if(result != unqualified_type) {
+ if (result != unqualified_type) {
obstack_free(type_obst, unqualified_type);
}
return result;
}
+type_t *get_qualified_type(type_t *orig_type, type_qualifiers_t const qual)
+{
+ type_t *type = skip_typeref(orig_type);
+
+ type_t *copy;
+ if (is_type_array(type)) {
+ /* For array types the element type has to be adjusted */
+ type_t *element_type = type->array.element_type;
+ type_t *qual_element_type = get_qualified_type(element_type, qual);
+
+ if (qual_element_type == element_type)
+ return orig_type;
+
+ copy = duplicate_type(type);
+ copy->array.element_type = qual_element_type;
+ } else if (is_type_valid(type)) {
+ if ((type->base.qualifiers & qual) == qual)
+ return orig_type;
+
+ copy = duplicate_type(type);
+ copy->base.qualifiers |= qual;
+ } else {
+ return type;
+ }
+
+ type = typehash_insert(copy);
+ if (type != copy)
+ obstack_free(type_obst, copy);
+
+ return type;
+}
+
/**
* Check if a type is valid.
*
return type->kind != TYPE_INVALID;
}
+static bool test_atomic_type_flag(atomic_type_kind_t kind,
+ atomic_type_flag_t flag)
+{
+ assert(kind <= ATOMIC_TYPE_LAST);
+ return (atomic_type_properties[kind].flags & flag) != 0;
+}
+
/**
* Returns true if the given type is an integer type.
*
{
assert(!is_typeref(type));
- if(type->kind == TYPE_ENUM)
+ if (type->kind == TYPE_ENUM)
return true;
-
- if(type->kind != TYPE_ATOMIC)
- return false;
-
- switch((atomic_type_kind_t) type->atomic.akind) {
- case ATOMIC_TYPE_BOOL:
- case ATOMIC_TYPE_CHAR:
- case ATOMIC_TYPE_SCHAR:
- case ATOMIC_TYPE_UCHAR:
- 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:
+ if (type->kind == TYPE_BITFIELD)
return true;
- case ATOMIC_TYPE_INVALID:
- case ATOMIC_TYPE_VOID:
- case ATOMIC_TYPE_FLOAT:
- case ATOMIC_TYPE_DOUBLE:
- case ATOMIC_TYPE_LONG_DOUBLE:
- case ATOMIC_TYPE_FLOAT_COMPLEX:
- case ATOMIC_TYPE_DOUBLE_COMPLEX:
- case ATOMIC_TYPE_LONG_DOUBLE_COMPLEX:
- case ATOMIC_TYPE_FLOAT_IMAGINARY:
- case ATOMIC_TYPE_DOUBLE_IMAGINARY:
- case ATOMIC_TYPE_LONG_DOUBLE_IMAGINARY:
+ if (type->kind != TYPE_ATOMIC)
return false;
- }
- panic("unexpected atomic type kind");
+ return test_atomic_type_flag(type->atomic.akind, ATOMIC_TYPE_FLAG_INTEGER);
+}
+
+/**
+ * Returns true if the given type is an enum type.
+ *
+ * @param type The type to check.
+ * @return True if type is an enum type.
+ */
+bool is_type_enum(const type_t *type)
+{
+ assert(!is_typeref(type));
+ return type->kind == TYPE_ENUM;
}
/**
{
assert(!is_typeref(type));
- if(type->kind != TYPE_ATOMIC)
+ if (type->kind != TYPE_ATOMIC)
return false;
- switch((atomic_type_kind_t) type->atomic.akind) {
- case ATOMIC_TYPE_FLOAT:
- case ATOMIC_TYPE_DOUBLE:
- case ATOMIC_TYPE_LONG_DOUBLE:
- case ATOMIC_TYPE_FLOAT_COMPLEX:
- case ATOMIC_TYPE_DOUBLE_COMPLEX:
- case ATOMIC_TYPE_LONG_DOUBLE_COMPLEX:
- case ATOMIC_TYPE_FLOAT_IMAGINARY:
- case ATOMIC_TYPE_DOUBLE_IMAGINARY:
- case ATOMIC_TYPE_LONG_DOUBLE_IMAGINARY:
- return true;
+ return test_atomic_type_flag(type->atomic.akind, ATOMIC_TYPE_FLAG_FLOAT);
+}
+
+/**
+ * Returns true if the given type is an complex type.
+ *
+ * @param type The type to check.
+ * @return True if type is a complex type.
+ */
+bool is_type_complex(const type_t *type)
+{
+ assert(!is_typeref(type));
- case ATOMIC_TYPE_INVALID:
- case ATOMIC_TYPE_VOID:
- case ATOMIC_TYPE_BOOL:
- case ATOMIC_TYPE_CHAR:
- case ATOMIC_TYPE_SCHAR:
- case ATOMIC_TYPE_UCHAR:
- 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:
+ if (type->kind != TYPE_ATOMIC)
return false;
- }
- panic("unexpected atomic type kind");
+ return test_atomic_type_flag(type->atomic.akind, ATOMIC_TYPE_FLAG_COMPLEX);
}
/**
assert(!is_typeref(type));
/* enum types are int for now */
- if(type->kind == TYPE_ENUM)
+ if (type->kind == TYPE_ENUM)
return true;
+ if (type->kind == TYPE_BITFIELD)
+ return is_type_signed(type->bitfield.base_type);
- if(type->kind != TYPE_ATOMIC)
+ if (type->kind != TYPE_ATOMIC)
return false;
- switch((atomic_type_kind_t) type->atomic.akind) {
- case ATOMIC_TYPE_CHAR:
- case ATOMIC_TYPE_SCHAR:
- case ATOMIC_TYPE_SHORT:
- case ATOMIC_TYPE_INT:
- case ATOMIC_TYPE_LONG:
- case ATOMIC_TYPE_LONGLONG:
- case ATOMIC_TYPE_FLOAT:
- case ATOMIC_TYPE_DOUBLE:
- case ATOMIC_TYPE_LONG_DOUBLE:
- case ATOMIC_TYPE_FLOAT_COMPLEX:
- case ATOMIC_TYPE_DOUBLE_COMPLEX:
- case ATOMIC_TYPE_LONG_DOUBLE_COMPLEX:
- case ATOMIC_TYPE_FLOAT_IMAGINARY:
- case ATOMIC_TYPE_DOUBLE_IMAGINARY:
- case ATOMIC_TYPE_LONG_DOUBLE_IMAGINARY:
- return true;
-
- case ATOMIC_TYPE_BOOL:
- case ATOMIC_TYPE_UCHAR:
- case ATOMIC_TYPE_USHORT:
- case ATOMIC_TYPE_UINT:
- case ATOMIC_TYPE_ULONG:
- case ATOMIC_TYPE_ULONGLONG:
- return false;
-
- case ATOMIC_TYPE_VOID:
- case ATOMIC_TYPE_INVALID:
- return false;
- }
-
- panic("invalid atomic type found");
- return false;
+ return test_atomic_type_flag(type->atomic.akind, ATOMIC_TYPE_FLAG_SIGNED);
}
/**
{
assert(!is_typeref(type));
- if(type->kind == TYPE_BITFIELD)
- return true;
-
- if(is_type_integer(type) || is_type_float(type))
+ switch(type->kind) {
+ case TYPE_BITFIELD:
+ case TYPE_ENUM:
return true;
+ case TYPE_ATOMIC:
+ return test_atomic_type_flag(type->atomic.akind, ATOMIC_TYPE_FLAG_ARITHMETIC);
+ case TYPE_COMPLEX:
+ return test_atomic_type_flag(type->complex.akind, ATOMIC_TYPE_FLAG_ARITHMETIC);
+ case TYPE_IMAGINARY:
+ return test_atomic_type_flag(type->imaginary.akind, ATOMIC_TYPE_FLAG_ARITHMETIC);
+ default:
+ return false;
+ }
+}
- return false;
+/**
+ * Returns true if the given type is an integer or float type.
+ *
+ * @param type The type to check.
+ * @return True if type is an integer or float type.
+ */
+bool is_type_real(const type_t *type)
+{
+ /* 6.2.5 (17) */
+ return is_type_integer(type) || is_type_float(type);
}
/**
switch (type->kind) {
case TYPE_POINTER: return true;
case TYPE_BUILTIN: return is_type_scalar(type->builtin.real_type);
- default: break;
+ default: break;
}
return is_type_arithmetic(type);
case TYPE_COMPOUND_UNION: {
const compound_type_t *compound_type = &type->compound;
declaration_t *declaration = compound_type->declaration;
- return !declaration->init.is_defined;
+ return !declaration->init.complete;
}
case TYPE_ENUM: {
const enum_type_t *enum_type = &type->enumt;
declaration_t *declaration = enum_type->declaration;
- return !declaration->init.is_defined;
+ return !declaration->init.complete;
}
- case TYPE_BITFIELD:
- case TYPE_FUNCTION:
- return true;
case TYPE_ARRAY:
- return type->array.size_expression == NULL;
+ return type->array.size_expression == NULL
+ && !type->array.size_constant;
case TYPE_ATOMIC:
return type->atomic.akind == ATOMIC_TYPE_VOID;
+ case TYPE_COMPLEX:
+ return type->complex.akind == ATOMIC_TYPE_VOID;
+
+ case TYPE_IMAGINARY:
+ return type->imaginary.akind == ATOMIC_TYPE_VOID;
+
+ case TYPE_BITFIELD:
+ case TYPE_FUNCTION:
case TYPE_POINTER:
case TYPE_BUILTIN:
case TYPE_ERROR:
panic("invalid type found");
}
+bool is_type_object(const type_t *type)
+{
+ return !is_type_function(type) && !is_type_incomplete(type);
+}
+
/**
* Check if two function types are compatible.
*/
if (!types_compatible(ret1, ret2))
return false;
+ if (func1->calling_convention != func2->calling_convention)
+ return false;
+
/* can parameters be compared? */
- if(func1->unspecified_parameters || func2->unspecified_parameters)
+ if (func1->unspecified_parameters || func2->unspecified_parameters)
return true;
- if(func1->variadic != func2->variadic)
+ if (func1->variadic != func2->variadic)
return false;
/* TODO: handling of unspecified parameters not correct yet */
/* all argument types must be compatible */
function_parameter_t *parameter1 = func1->parameters;
function_parameter_t *parameter2 = func2->parameters;
- for( ; parameter1 != NULL && parameter2 != NULL;
+ for ( ; parameter1 != NULL && parameter2 != NULL;
parameter1 = parameter1->next, parameter2 = parameter2->next) {
type_t *parameter1_type = skip_typeref(parameter1->type);
type_t *parameter2_type = skip_typeref(parameter2->type);
parameter1_type = get_unqualified_type(parameter1_type);
parameter2_type = get_unqualified_type(parameter2_type);
- if(!types_compatible(parameter1_type, parameter2_type))
+ if (!types_compatible(parameter1_type, parameter2_type))
return false;
}
/* same number of arguments? */
- if(parameter1 != NULL || parameter2 != NULL)
+ if (parameter1 != NULL || parameter2 != NULL)
return false;
return true;
{
type_t *element_type1 = skip_typeref(array1->element_type);
type_t *element_type2 = skip_typeref(array2->element_type);
- if(!types_compatible(element_type1, element_type2))
+ if (!types_compatible(element_type1, element_type2))
return false;
- if(!array1->size_constant || !array2->size_constant)
+ if (!array1->size_constant || !array2->size_constant)
return true;
return array1->size == array2->size;
assert(!is_typeref(type2));
/* shortcut: the same type is always compatible */
- if(type1 == type2)
+ if (type1 == type2)
+ return true;
+
+ if (!is_type_valid(type1) || !is_type_valid(type2))
return true;
- if(type1->base.qualifiers != type2->base.qualifiers)
+ if (type1->base.qualifiers != type2->base.qualifiers)
return false;
- if(type1->kind != type2->kind)
+ if (type1->kind != type2->kind)
return false;
- switch(type1->kind) {
+ switch (type1->kind) {
case TYPE_FUNCTION:
return function_types_compatible(&type1->function, &type2->function);
case TYPE_ATOMIC:
return type1->atomic.akind == type2->atomic.akind;
+ case TYPE_COMPLEX:
+ return type1->complex.akind == type2->complex.akind;
+ case TYPE_IMAGINARY:
+ return type1->imaginary.akind == type2->imaginary.akind;
case TYPE_ARRAY:
return array_types_compatible(&type1->array, &type2->array);
return false;
}
-/**
- * Check if two pointer types are compatible.
- */
-bool pointers_compatible(const type_t *type1, const type_t *type2)
-{
- assert(!is_typeref(type1));
- assert(!is_typeref(type2));
-
- assert(type1->kind == TYPE_POINTER);
- assert(type2->kind == TYPE_POINTER);
- (void) type1;
- (void) type2;
- /* TODO */
- return true;
-}
-
/**
* Skip all typerefs and return the underlying type.
*/
type_t *skip_typeref(type_t *type)
{
- unsigned qualifiers = TYPE_QUALIFIER_NONE;
+ type_qualifiers_t qualifiers = TYPE_QUALIFIER_NONE;
+ type_modifiers_t modifiers = TYPE_MODIFIER_NONE;
- while(true) {
- switch(type->kind) {
+ while (true) {
+ switch (type->kind) {
case TYPE_ERROR:
return type;
case TYPE_TYPEDEF: {
qualifiers |= type->base.qualifiers;
+ modifiers |= type->base.modifiers;
const typedef_type_t *typedef_type = &type->typedeft;
- if(typedef_type->resolved_type != NULL) {
+ if (typedef_type->resolved_type != NULL) {
type = typedef_type->resolved_type;
break;
}
}
case TYPE_TYPEOF: {
const typeof_type_t *typeof_type = &type->typeoft;
- if(typeof_type->typeof_type != NULL) {
+ if (typeof_type->typeof_type != NULL) {
type = typeof_type->typeof_type;
} else {
type = typeof_type->expression->base.type;
break;
}
- if (qualifiers != TYPE_QUALIFIER_NONE) {
- type_t *const copy = duplicate_type(type);
- copy->base.qualifiers |= qualifiers;
+ if (qualifiers != TYPE_QUALIFIER_NONE || modifiers != TYPE_MODIFIER_NONE) {
+ type_t *const copy = duplicate_type(type);
+
+ /* for const with typedefed array type the element type has to be
+ * adjusted */
+ if (is_type_array(copy)) {
+ type_t *element_type = copy->array.element_type;
+ element_type = duplicate_type(element_type);
+ element_type->base.qualifiers |= qualifiers;
+ element_type->base.modifiers |= modifiers;
+ copy->array.element_type = element_type;
+ } else {
+ copy->base.qualifiers |= qualifiers;
+ copy->base.modifiers |= modifiers;
+ }
type = typehash_insert(copy);
if (type != copy) {
return type;
}
-unsigned get_atomic_type_size(atomic_type_kind_t kind)
-{
- switch(kind) {
- case ATOMIC_TYPE_CHAR:
- case ATOMIC_TYPE_SCHAR:
- case ATOMIC_TYPE_UCHAR:
- return 1;
-
- case ATOMIC_TYPE_SHORT:
- case ATOMIC_TYPE_USHORT:
- return 2;
-
- case ATOMIC_TYPE_BOOL:
- case ATOMIC_TYPE_INT:
- case ATOMIC_TYPE_UINT:
- return machine_size >> 3;
-
- case ATOMIC_TYPE_LONG:
- case ATOMIC_TYPE_ULONG:
- return machine_size > 16 ? machine_size >> 3 : 4;
+type_qualifiers_t get_type_qualifier(const type_t *type, bool skip_array_type) {
+ type_qualifiers_t qualifiers = TYPE_QUALIFIER_NONE;
- case ATOMIC_TYPE_LONGLONG:
- case ATOMIC_TYPE_ULONGLONG:
- return machine_size > 16 ? 8 : 4;
-
- case ATOMIC_TYPE_FLOAT_IMAGINARY:
- case ATOMIC_TYPE_FLOAT:
- return 4;
-
- case ATOMIC_TYPE_DOUBLE_IMAGINARY:
- case ATOMIC_TYPE_DOUBLE:
- return 8;
-
- case ATOMIC_TYPE_LONG_DOUBLE_IMAGINARY:
- case ATOMIC_TYPE_LONG_DOUBLE:
- return 12;
+ while (true) {
+ switch (type->base.kind) {
+ case TYPE_ERROR:
+ return TYPE_QUALIFIER_NONE;
+ case TYPE_TYPEDEF:
+ qualifiers |= type->base.qualifiers;
+ const typedef_type_t *typedef_type = &type->typedeft;
+ if (typedef_type->resolved_type != NULL)
+ type = typedef_type->resolved_type;
+ else
+ type = typedef_type->declaration->type;
+ continue;
+ case TYPE_TYPEOF: {
+ const typeof_type_t *typeof_type = &type->typeoft;
+ if (typeof_type->typeof_type != NULL) {
+ type = typeof_type->typeof_type;
+ } else {
+ type = typeof_type->expression->base.type;
+ }
+ continue;
+ }
+ case TYPE_ARRAY:
+ if (skip_array_type) {
+ type = type->array.element_type;
+ continue;
+ }
+ break;
+ default:
+ break;
+ }
+ break;
+ }
+ return type->base.qualifiers | qualifiers;
+}
- case ATOMIC_TYPE_VOID:
- return 1;
+unsigned get_atomic_type_size(atomic_type_kind_t kind)
+{
+ assert(kind <= ATOMIC_TYPE_LAST);
+ return atomic_type_properties[kind].size;
+}
- case ATOMIC_TYPE_FLOAT_COMPLEX:
- return 2 * get_atomic_type_size(ATOMIC_TYPE_FLOAT);
+unsigned get_atomic_type_alignment(atomic_type_kind_t kind)
+{
+ assert(kind <= ATOMIC_TYPE_LAST);
+ return atomic_type_properties[kind].alignment;
+}
- case ATOMIC_TYPE_DOUBLE_COMPLEX:
- return 2 * get_atomic_type_size(ATOMIC_TYPE_DOUBLE);
+unsigned get_atomic_type_flags(atomic_type_kind_t kind)
+{
+ assert(kind <= ATOMIC_TYPE_LAST);
+ return atomic_type_properties[kind].flags;
+}
- case ATOMIC_TYPE_LONG_DOUBLE_COMPLEX:
- return 2 * get_atomic_type_size(ATOMIC_TYPE_LONG_DOUBLE);
+atomic_type_kind_t get_intptr_kind(void)
+{
+ if (machine_size <= 32)
+ return ATOMIC_TYPE_INT;
+ else if (machine_size <= 64)
+ return ATOMIC_TYPE_LONG;
+ else
+ return ATOMIC_TYPE_LONGLONG;
+}
- case ATOMIC_TYPE_INVALID:
- break;
- }
- panic("Trying to determine size of invalid atomic type");
+atomic_type_kind_t get_uintptr_kind(void)
+{
+ if (machine_size <= 32)
+ return ATOMIC_TYPE_UINT;
+ else if (machine_size <= 64)
+ return ATOMIC_TYPE_ULONG;
+ else
+ return ATOMIC_TYPE_ULONGLONG;
}
/**
assert(size < 32);
atomic_type_kind_t kind = kinds[size];
- if(kind == ATOMIC_TYPE_INVALID) {
+ if (kind == ATOMIC_TYPE_INVALID) {
static const atomic_type_kind_t possible_kinds[] = {
ATOMIC_TYPE_SCHAR,
ATOMIC_TYPE_SHORT,
ATOMIC_TYPE_LONGLONG
};
for(unsigned i = 0; i < sizeof(possible_kinds)/sizeof(possible_kinds[0]); ++i) {
- if(get_atomic_type_size(possible_kinds[i]) == size) {
+ if (get_atomic_type_size(possible_kinds[i]) == size) {
kind = possible_kinds[i];
break;
}
assert(size < 32);
atomic_type_kind_t kind = kinds[size];
- if(kind == ATOMIC_TYPE_INVALID) {
+ if (kind == ATOMIC_TYPE_INVALID) {
static const atomic_type_kind_t possible_kinds[] = {
ATOMIC_TYPE_UCHAR,
ATOMIC_TYPE_USHORT,
ATOMIC_TYPE_ULONGLONG
};
for(unsigned i = 0; i < sizeof(possible_kinds)/sizeof(possible_kinds[0]); ++i) {
- if(get_atomic_type_size(possible_kinds[i]) == size) {
+ if (get_atomic_type_size(possible_kinds[i]) == size) {
kind = possible_kinds[i];
break;
}
static type_t *identify_new_type(type_t *type)
{
type_t *result = typehash_insert(type);
- if(result != type) {
+ if (result != type) {
obstack_free(type_obst, type);
}
return result;
* @param akind The kind of the atomic type.
* @param qualifiers Type qualifiers for the new type.
*/
-type_t *make_atomic_type(atomic_type_kind_t atype, type_qualifiers_t qualifiers)
+type_t *make_atomic_type(atomic_type_kind_t akind, type_qualifiers_t qualifiers)
{
type_t *type = obstack_alloc(type_obst, sizeof(atomic_type_t));
memset(type, 0, sizeof(atomic_type_t));
type->kind = TYPE_ATOMIC;
+ type->base.size = get_atomic_type_size(akind);
+ type->base.alignment = get_atomic_type_alignment(akind);
+ type->base.qualifiers = qualifiers;
+ type->atomic.akind = akind;
+
+ return identify_new_type(type);
+}
+
+/**
+ * Creates a new complex type.
+ *
+ * @param akind The kind of the atomic type.
+ * @param qualifiers Type qualifiers for the new type.
+ */
+type_t *make_complex_type(atomic_type_kind_t akind, type_qualifiers_t qualifiers)
+{
+ type_t *type = obstack_alloc(type_obst, sizeof(complex_type_t));
+ memset(type, 0, sizeof(complex_type_t));
+
+ type->kind = TYPE_COMPLEX;
type->base.qualifiers = qualifiers;
- type->base.alignment = 0;
- type->atomic.akind = atype;
+ type->base.alignment = get_atomic_type_alignment(akind);
+ type->complex.akind = akind;
- /* TODO: set the alignment depending on the atype here */
+ return identify_new_type(type);
+}
+
+/**
+ * Creates a new imaginary type.
+ *
+ * @param akind The kind of the atomic type.
+ * @param qualifiers Type qualifiers for the new type.
+ */
+type_t *make_imaginary_type(atomic_type_kind_t akind, type_qualifiers_t qualifiers)
+{
+ type_t *type = obstack_alloc(type_obst, sizeof(imaginary_type_t));
+ memset(type, 0, sizeof(imaginary_type_t));
+
+ type->kind = TYPE_IMAGINARY;
+ type->base.qualifiers = qualifiers;
+ type->base.alignment = get_atomic_type_alignment(akind);
+ type->imaginary.akind = akind;
return identify_new_type(type);
}
projects / cparser / blobdiff