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 int align; /**< Alignment of an entity of this type. This should be
125 set according to the source language needs. If not set it's
126 calculated automatically by get_type_alignment().
127 Alignment must be given in bits. */
128 ir_mode *mode; /**< The mode for atomic types */
129 unsigned long visit; /**< visited counter for walks of the type information */
130 void *link; /**< holds temporary data - like in irnode_t.h */
131 struct dbg_info* dbi; /**< A pointer to information for debug support. */
133 /* ------------- fields for analyses ---------------*/
134 ir_node **allocations; /**< array of all Alloc nodes with this type
135 @@@ Should not be in here, hash table! */
138 int nr; /**< a unique node number for each node to make output
140 char *c_name; /**< since idents are opaque, provide the name in cleartext */
142 tp_attr attr; /* type kind specific fields. This must be the last
143 entry in this struct! Varying size! */
147 * Creates a new type representation:
149 * @param type_op - the kind of this type. May not be type_id.
150 * @param mode - the mode to be used for this type, may be NULL
151 * @param name - an ident for the name of this type.
152 * @return a new type of the given type. The remaining private attributes are not
153 * @return initalized. The type is in state layout_undefined.
157 new_type(tp_op *type_op,
160 void free_type_attrs (type *tp);
162 INLINE void free_class_entities (type *clss);
163 INLINE void free_struct_entities (type *strct);
164 INLINE void free_method_entities (type *method);
165 INLINE void free_union_entities (type *uni);
166 INLINE void free_array_entities (type *array);
167 INLINE void free_enumeration_entities(type *enumeration);
168 INLINE void free_pointer_entities (type *pointer);
169 INLINE void free_primitive_entities (type *primitive);
171 INLINE void free_class_attrs (type *clss);
172 INLINE void free_struct_attrs (type *strct);
173 INLINE void free_method_attrs (type *method);
174 INLINE void free_union_attrs (type *uni);
175 INLINE void free_array_attrs (type *array);
176 INLINE void free_enumeration_attrs(type *enumeration);
177 INLINE void free_pointer_attrs (type *pointer);
178 INLINE void free_primitive_attrs (type *primitive);
181 /** initialize the type module */
182 void init_type (void);
185 /* ------------------- *
187 * ------------------- */
189 extern unsigned long type_visited;
191 static INLINE void __set_master_type_visited(unsigned long val) { type_visited = val; }
192 static INLINE unsigned long __get_master_type_visited(void) { return type_visited; }
193 static INLINE void __inc_master_type_visited(void) { type_visited++; }
196 __get_type_link(const type *tp) {
197 assert(tp && tp->kind == k_type);
202 __set_type_link(type *tp, void *l) {
203 assert(tp && tp->kind == k_type);
208 __get_type_tpop(const type *tp) {
209 assert(tp && tp->kind == k_type);
214 __get_type_tpop_nameid(const type *tp) {
215 assert(tp && tp->kind == k_type);
216 return get_tpop_ident(tp->type_op);
219 static INLINE tp_opcode
220 __get_type_tpop_code(const type *tp) {
221 assert(tp && tp->kind == k_type);
222 return get_tpop_code(tp->type_op);
225 static INLINE ir_mode *
226 __get_type_mode(const type *tp) {
227 assert(tp && tp->kind == k_type);
231 static INLINE ident *
232 __get_type_ident(const type *tp) {
233 assert(tp && tp->kind == k_type);
238 __set_type_ident(type *tp, ident* id) {
239 assert(tp && tp->kind == k_type);
244 __get_type_nr(const type *tp) {
254 __get_type_size_bits(const type *tp) {
255 assert(tp && tp->kind == k_type);
260 __get_type_size_bytes(const type *tp) {
261 int size = __get_type_size_bits(tp);
264 if ((size & 7) != 0) {
265 assert(0 && "cannot take byte size of this type");
271 static INLINE type_state
272 __get_type_state(const type *tp) {
273 assert(tp && tp->kind == k_type);
277 static INLINE unsigned long
278 __get_type_visited(const type *tp) {
279 assert(tp && tp->kind == k_type);
284 __set_type_visited(type *tp, unsigned long num) {
285 assert(tp && tp->kind == k_type);
290 __mark_type_visited(type *tp) {
291 assert(tp && tp->kind == k_type);
292 assert(tp->visit < type_visited);
293 tp->visit = type_visited;
297 __type_visited(const type *tp) {
298 assert(tp && tp->kind == k_type);
299 return tp->visit >= type_visited;
303 __type_not_visited(const type *tp) {
304 assert(tp && tp->kind == k_type);
305 return tp->visit < type_visited;
309 __is_type(const void *thing) {
310 return (get_kind(thing) == k_type);
314 __is_class_type(const type *clss) {
316 return (clss->type_op == type_class);
320 __get_class_n_members (const type *clss) {
321 assert(clss && (clss->type_op == type_class));
322 return (ARR_LEN (clss->attr.ca.members));
325 static INLINE entity *
326 __get_class_member (const type *clss, int pos) {
327 assert(clss && (clss->type_op == type_class));
328 assert(pos >= 0 && pos < __get_class_n_members(clss));
329 return clss->attr.ca.members[pos];
333 __is_struct_type(const type *strct) {
335 return (strct->type_op == type_struct);
339 __is_method_type(const type *method) {
341 return (method->type_op == type_method);
345 __is_union_type(const type *uni) {
347 return (uni->type_op == type_union);
351 __is_array_type(const type *array) {
353 return (array->type_op == type_array);
357 __is_enumeration_type(const type *enumeration) {
359 return (enumeration->type_op == type_enumeration);
363 __is_pointer_type(const type *pointer) {
365 return (pointer->type_op == type_pointer);
368 /** Returns true if a type is a primitive type. */
370 __is_primitive_type(const type *primitive) {
371 assert(primitive && primitive->kind == k_type);
372 return (primitive->type_op == type_primitive);
376 __is_atomic_type(const type *tp) {
377 assert(tp && tp->kind == k_type);
378 return (is_primitive_type(tp) || is_pointer_type(tp) ||
379 is_enumeration_type(tp));
383 #define set_master_type_visited(val) __set_master_type_visited(val)
384 #define get_master_type_visited() __get_master_type_visited()
385 #define inc_master_type_visited() __inc_master_type_visited()
386 #define get_type_link(tp) __get_type_link(tp)
387 #define set_type_link(tp, l) __set_type_link(tp, l)
388 #define get_type_tpop(tp) __get_type_tpop(tp)
389 #define get_type_tpop_nameid(tp) __get_type_tpop_nameid(tp)
390 #define get_type_tpop_code(tp) __get_type_tpop_code(tp)
391 #define get_type_mode(tp) __get_type_mode(tp)
392 #define get_type_ident(tp) __get_type_ident(tp)
393 #define set_type_ident(tp, id) __set_type_ident(tp, id)
394 #define get_type_nr(tp) __get_type_nr(tp)
395 #define get_type_size(tp) __get_type_size(tp)
396 #define get_type_state(tp) __get_type_state(tp)
397 #define get_type_visited(tp) __get_type_visited(tp)
398 #define set_type_visited(tp, num) __set_type_visited(tp, num)
399 #define mark_type_visited(tp) __mark_type_visited(tp)
400 #define type_visited(tp) __type_visited(tp)
401 #define type_not_visited(tp) __type_not_visited(tp)
402 #define is_type(thing) __is_type(thing)
403 #define is_class_type(clss) __is_class_type(clss)
404 #define get_class_n_members(clss) __get_class_n_members(clss)
405 #define get_class_member(clss, pos) __get_class_member(clss, pos)
406 #define is_struct_type(strct) __is_struct_type(strct)
407 #define is_method_type(method) __is_method_type(method)
408 #define is_union_type(uni) __is_union_type(uni)
409 #define is_array_type(array) __is_array_type(array)
410 #define is_enumeration_type(enumeration) __is_enumeration_type(enumeration)
411 #define is_pointer_type(pointer) __is_pointer_type(pointer)
412 #define is_primitive_type(primitive) __is_primitive_type(primitive)
413 #define is_atomic_type(tp) __is_atomic_type(tp)
415 # endif /* _TYPE_T_H_ */