3 * File name: ir/tr/type_t.h
4 * Purpose: Representation of types -- private header.
5 * Author: Goetz Lindenmaier
9 * Copyright: (c) 2001-2003 Universität Karlsruhe
10 * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
25 * This file contains the datatypes hidden in type.h.
27 * @author Goetz Lindenmaier
28 * @see type.h tpop_t.h tpop.h
31 /** class attributes */
33 entity **members; /**< fields and methods of this class */
34 type **subtypes; /**< direct subtypes */
35 type **supertypes; /**< direct supertypes */
36 peculiarity peculiarity;
37 int dfn; /**< number used for 'instanceof' operator */
40 /** struct attributs */
42 entity **members; /**< fields of this struct. No method entities
46 /** method attributes */
48 int n_params; /**< number of parameters */
49 type **param_type; /**< code generation needs this information. */
50 type *value_params; /**< A type whose entities represent copied value arguments. */
51 int n_res; /**< number of results */
52 type **res_type; /**< array with result types */
53 type *value_ress; /**< A type whose entities represent copied value results. */
54 variadicity variadicity; /**< variadicity of the method. */
55 int first_variadic_param; /**< index of the first variadic param or -1 if non-variadic .*/
58 /** union attributs */
61 /* type **unioned_type; * a list of unioned types. */
62 /* ident **delim_names; * names of the union delimiters. */
63 entity **members; /**< fields of this union. No method entities
68 /** array attributs */
70 int n_dimensions; /**< Number of array dimensions. */
71 ir_node **lower_bound; /**< Lower bounds of dimensions. Usually all 0. */
72 ir_node **upper_bound; /**< Upper bounds or dimensions. */
73 int *order; /**< Ordering of dimensions. */
74 type *element_type; /**< The type of the array elements. */
75 entity *element_ent; /**< Entity for the array elements, to be used for
76 element selection with Sel. */
81 int n_enums; /**< Number of enumerators. */
82 tarval **enumer; /**< Contains all constants that represent a member
83 of the enum -- enumerators. */
84 ident **enum_nameid;/**< Contains the names of the enum fields as specified by
88 /** pointer attributs */
90 type *points_to; /**< The type of the enitity the pointer points to. */
94 typedef struct { * No private attr yet! *
99 typedef struct { * No private attr, must be smaller than others! *
103 /** General type attributs. */
105 cls_attr ca; /**< attributes of a class type */
106 stc_attr sa; /**< attributes of a struct type */
107 mtd_attr ma; /**< attributes of a method type */
108 uni_attr ua; /**< attributes of an union type */
109 arr_attr aa; /**< attributes of an array type */
110 enm_attr ea; /**< attributes of an enumeration type */
111 ptr_attr pa; /**< attributes of a pointer type */
114 /** the structure of a type */
119 type_state state; /**< Represents the types state: layout undefined or
121 int size; /**< Size of an entity of this type. This is determined
122 when fixing the layout of this class. Size must be
124 ir_mode *mode; /**< The mode for atomic types */
125 unsigned long visit; /**< visited counter for walks of the type information */
126 void *link; /**< holds temporary data - like in irnode_t.h */
127 struct dbg_info* dbi; /**< A pointer to information for debug support. */
129 /* ------------- fields for analyses ---------------*/
130 ir_node **allocations; /**< array of all Alloc nodes with this type
131 @@@ Should not be in here, hash table! */
134 int nr; /**< a unique node number for each node to make output
137 tp_attr attr; /* type kind specific fields. This must be the last
138 entry in this struct! Varying size! */
142 * Creates a new type representation:
144 * @param type_op - the kind of this type. May not be type_id.
145 * @param mode - the mode to be used for this type, may be NULL
146 * @param name - an ident for the name of this type.
147 * @return a new type of the given type. The remaining private attributes are not
148 * @return initalized. The type is in state layout_undefined.
152 new_type(tp_op *type_op,
155 void free_type_attrs (type *tp);
157 INLINE void free_class_entities (type *clss);
158 INLINE void free_struct_entities (type *strct);
159 INLINE void free_method_entities (type *method);
160 INLINE void free_union_entities (type *uni);
161 INLINE void free_array_entities (type *array);
162 INLINE void free_enumeration_entities(type *enumeration);
163 INLINE void free_pointer_entities (type *pointer);
164 INLINE void free_primitive_entities (type *primitive);
166 INLINE void free_class_attrs (type *clss);
167 INLINE void free_struct_attrs (type *strct);
168 INLINE void free_method_attrs (type *method);
169 INLINE void free_union_attrs (type *uni);
170 INLINE void free_array_attrs (type *array);
171 INLINE void free_enumeration_attrs(type *enumeration);
172 INLINE void free_pointer_attrs (type *pointer);
173 INLINE void free_primitive_attrs (type *primitive);
176 /** initialize the type module */
177 void init_type (void);
180 /* ------------------- *
182 * ------------------- */
184 extern unsigned long type_visited;
186 static INLINE void __set_master_type_visited(unsigned long val) { type_visited = val; }
187 static INLINE unsigned long __get_master_type_visited(void) { return type_visited; }
188 static INLINE void __inc_master_type_visited(void) { type_visited++; }
191 __get_type_link(type *tp) {
192 assert(tp && tp->kind == k_type);
197 __set_type_link(type *tp, void *l) {
198 assert(tp && tp->kind == k_type);
203 __get_type_tpop(type *tp) {
204 assert(tp && tp->kind == k_type);
209 __get_type_tpop_nameid(type *tp) {
210 assert(tp && tp->kind == k_type);
211 return get_tpop_ident(tp->type_op);
214 static INLINE tp_opcode
215 __get_type_tpop_code(type *tp) {
216 assert(tp && tp->kind == k_type);
217 return get_tpop_code(tp->type_op);
220 static INLINE ir_mode *
221 __get_type_mode(type *tp) {
222 assert(tp && tp->kind == k_type);
226 static INLINE ident *
227 __get_type_ident(type *tp) {
228 assert(tp && tp->kind == k_type);
233 __set_type_ident(type *tp, ident* id) {
234 assert(tp && tp->kind == k_type);
239 __get_type_nr(type *tp) {
249 __get_type_size_bits(type *tp) {
250 assert(tp && tp->kind == k_type);
255 __get_type_size_bytes(type *tp) {
256 int size = __get_type_size_bits(tp);
259 if ((size & 7) != 0) {
260 assert(0 && "cannot take byte size of this type");
266 static INLINE type_state
267 __get_type_state(type *tp) {
268 assert(tp && tp->kind == k_type);
272 static INLINE unsigned long
273 __get_type_visited(type *tp) {
274 assert(tp && tp->kind == k_type);
279 __set_type_visited(type *tp, unsigned long num) {
280 assert(tp && tp->kind == k_type);
285 __mark_type_visited(type *tp) {
286 assert(tp && tp->kind == k_type);
287 assert(tp->visit < type_visited);
288 tp->visit = type_visited;
292 __type_visited(type *tp) {
293 assert(tp && tp->kind == k_type);
294 return tp->visit >= type_visited;
298 __type_not_visited(type *tp) {
299 assert(tp && tp->kind == k_type);
300 return tp->visit < type_visited;
304 __is_type(void *thing) {
305 return (get_kind(thing) == k_type);
309 __is_class_type(type *clss) {
311 return (clss->type_op == type_class);
315 __get_class_n_members (type *clss) {
316 assert(clss && (clss->type_op == type_class));
317 return (ARR_LEN (clss->attr.ca.members));
320 static INLINE entity *
321 __get_class_member (type *clss, int pos) {
322 assert(clss && (clss->type_op == type_class));
323 assert(pos >= 0 && pos < get_class_n_members(clss));
324 return clss->attr.ca.members[pos];
328 __is_struct_type(type *strct) {
330 return (strct->type_op == type_struct);
334 __is_method_type(type *method) {
336 return (method->type_op == type_method);
340 __is_union_type(type *uni) {
342 return (uni->type_op == type_union);
346 __is_array_type(type *array) {
348 return (array->type_op == type_array);
352 __is_enumeration_type(type *enumeration) {
354 return (enumeration->type_op == type_enumeration);
358 __is_pointer_type(type *pointer) {
360 return (pointer->type_op == type_pointer);
363 /** Returns true if a type is a primitive type. */
365 __is_primitive_type(type *primitive) {
366 assert(primitive && primitive->kind == k_type);
367 return (primitive->type_op == type_primitive);
371 __is_atomic_type(type *tp) {
372 assert(tp && tp->kind == k_type);
373 return (is_primitive_type(tp) || is_pointer_type(tp) ||
374 is_enumeration_type(tp));
378 #define set_master_type_visited(val) __set_master_type_visited(val)
379 #define get_master_type_visited() __get_master_type_visited()
380 #define inc_master_type_visited() __inc_master_type_visited()
381 #define get_type_link(tp) __get_type_link(tp)
382 #define set_type_link(tp, l) __set_type_link(tp, l)
383 #define get_type_tpop(tp) __get_type_tpop(tp)
384 #define get_type_tpop_nameid(tp) __get_type_tpop_nameid(tp)
385 #define get_type_tpop_code(tp) __get_type_tpop_code(tp)
386 #define get_type_mode(tp) __get_type_mode(tp)
387 #define get_type_ident(tp) __get_type_ident(tp)
388 #define set_type_ident(tp, id) __set_type_ident(tp, id)
389 #define get_type_nr(tp) __get_type_nr(tp)
390 #define get_type_size(tp) __get_type_size(tp)
391 #define get_type_state(tp) __get_type_state(tp)
392 #define get_type_visited(tp) __get_type_visited(tp)
393 #define set_type_visited(tp, num) __set_type_visited(tp, num)
394 #define mark_type_visited(tp) __mark_type_visited(tp)
395 #define type_visited(tp) __type_visited(tp)
396 #define type_not_visited(tp) __type_not_visited(tp)
397 #define is_type(thing) __is_type(thing)
398 #define is_class_type(clss) __is_class_type(clss)
399 #define get_class_n_members(clss) __get_class_n_members(clss)
400 #define get_class_member(clss, pos) __get_class_member(clss, pos)
401 #define is_struct_type(strct) __is_struct_type(strct)
402 #define is_method_type(method) __is_method_type(method)
403 #define is_union_type(uni) __is_union_type(uni)
404 #define is_array_type(array) __is_array_type(array)
405 #define is_enumeration_type(enumeration) __is_enumeration_type(enumeration)
406 #define is_pointer_type(pointer) __is_pointer_type(pointer)
407 #define is_primitive_type(primitive) __is_primitive_type(primitive)
408 #define is_atomic_type(tp) __is_atomic_type(tp)
410 # endif /* _TYPE_T_H_ */