2 * Copyright (C) 1995-2011 University of Karlsruhe. All right reserved.
4 * This file is part of libFirm.
6 * This file may be distributed and/or modified under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation and appearing in the file LICENSE.GPL included in the
9 * packaging of this file.
11 * Licensees holding valid libFirm Professional Edition licenses may use
12 * this file in accordance with the libFirm Commercial License.
13 * Agreement provided with the Software.
15 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * @brief Representation of types -- private header.
23 * @author Goetz Lindenmaier, Michael Beck
24 * @see type.h tpop_t.h tpop.h
26 #ifndef FIRM_TR_TYPE_T_H
27 #define FIRM_TR_TYPE_T_H
33 #include "firm_common.h"
37 #define set_master_type_visited(val) _set_master_type_visited(val)
38 #define get_master_type_visited() _get_master_type_visited()
39 #define inc_master_type_visited() _inc_master_type_visited()
40 #define get_type_link(tp) _get_type_link(tp)
41 #define set_type_link(tp, l) _set_type_link(tp, l)
42 #define get_type_tpop(tp) _get_type_tpop(tp)
43 #define get_type_tpop_nameid(tp) _get_type_tpop_nameid(tp)
44 #define get_type_tpop_code(tp) _get_type_tpop_code(tp)
45 #define get_type_mode(tp) _get_type_mode(tp)
46 #define get_type_size_bytes(tp) _get_type_size_bytes(tp)
47 #define get_type_state(tp) _get_type_state(tp)
48 #define get_type_visited(tp) _get_type_visited(tp)
49 #define set_type_visited(tp, num) _set_type_visited(tp, num)
50 #define mark_type_visited(tp) _mark_type_visited(tp)
51 #define type_visited(tp) _type_visited(tp)
52 #define type_not_visited(tp) _type_not_visited(tp)
53 #define get_type_dbg_info(tp) _get_type_dbg_info(tp)
54 #define set_type_dbg_info(tp, db) _set_type_dbg_info(tp, db)
55 #define is_type(thing) _is_type(thing)
56 #define is_Class_type(clss) _is_class_type(clss)
57 #define get_class_n_members(clss) _get_class_n_members(clss)
58 #define get_class_member(clss, pos) _get_class_member(clss, pos)
59 #define get_class_vtable_size(clss) _get_class_vtable_size(clss)
60 #define set_class_vtable_size(clss, size) _set_class_vtable_size(clss, size)
61 #define is_class_final(clss) _is_class_final(clss)
62 #define set_class_final(clss, flag) _set_class_final(clss, flag)
63 #define is_class_interface(clss) _is_class_interface(clss)
64 #define set_class_interface(clss, flag) _set_class_interface(clss, flag)
65 #define is_class_abstract(clss) _is_class_abstract(clss)
66 #define set_class_abstract(clss, flag) _set_class_abstract(clss, flag)
67 #define is_Struct_type(strct) _is_struct_type(strct)
68 #define is_Method_type(method) _is_method_type(method)
69 #define is_Union_type(uni) _is_union_type(uni)
70 #define is_Array_type(array) _is_array_type(array)
71 #define is_Enumeration_type(enumeration) _is_enumeration_type(enumeration)
72 #define is_Pointer_type(pointer) _is_pointer_type(pointer)
73 #define is_Primitive_type(primitive) _is_primitive_type(primitive)
74 #define is_atomic_type(tp) _is_atomic_type(tp)
75 #define get_method_n_params(method) _get_method_n_params(method)
76 #define get_method_n_ress(method) _get_method_n_ress(method)
77 #define get_method_additional_properties(method) _get_method_additional_properties(method)
78 #define set_method_additional_properties(method, mask) _set_method_additional_properties(method, mask)
79 #define add_method_additional_properties(method, flag) _add_method_additional_properties(method, flag)
80 #define get_method_calling_convention(method) _get_method_calling_convention(method)
81 #define set_method_calling_convention(method, cc_mask) _set_method_calling_convention(method, cc_mask)
85 cf_none = 0, /**< No flags. */
86 cf_final_class = 1, /**< Set if a class is an final class */
87 cf_interface_class = 2, /**< Set if a class is an "interface" */
88 cf_absctract_class = 4, /**< Set if a class is "abstract" */
91 /** Class type attributes. */
93 ir_entity **members; /**< Array containing the fields and methods of this class. */
94 ir_type **subtypes; /**< Array containing the direct subtypes. */
95 ir_type **supertypes; /**< Array containing the direct supertypes */
96 ir_peculiarity peculiarity; /**< The peculiarity of this class. */
97 int dfn; /**< A number that can be used for 'instanceof' operator. */
98 unsigned vtable_size; /**< The size of the vtable for this class. */
99 unsigned clss_flags; /**< Additional class flags. */
102 /** Struct type attributes. */
104 ir_entity **members; /**< Fields of this struct. No method entities allowed. */
107 /** A (type, ir_entity) pair. */
109 ir_type *tp; /**< A type. */
110 ir_entity *ent; /**< An ir_entity. */
113 /** Method type attributes. */
115 size_t n_params; /**< Number of parameters. */
116 tp_ent_pair *params; /**< Array of parameter type/value entities pairs. */
117 size_t n_res; /**< Number of results. */
118 tp_ent_pair *res_type; /**< Array of result type/value ir_entity pairs. */
119 ir_variadicity variadicity; /**< The variadicity of the method. */
120 mtp_additional_properties properties; /**< Set of additional method properties. */
121 unsigned irg_calling_conv; /**< A set of calling convention flags. */
124 /** Union type attributes. */
126 ir_entity **members; /**< Fields of this union. No method entities allowed. */
129 /** Array type attributes. */
131 size_t n_dimensions; /**< Number of array dimensions. */
132 ir_node **lower_bound; /**< Lower bounds of dimensions. Usually all 0. */
133 ir_node **upper_bound; /**< Upper bounds or dimensions. */
134 size_t *order; /**< Ordering of dimensions. */
135 ir_type *element_type; /**< The type of the array elements. */
136 ir_entity *element_ent; /**< entity for the array elements, to be used for
137 element selection with a Sel node. */
140 /** An enumerator constant. */
141 struct ir_enum_const {
142 ir_tarval *value; /**< The constants that represents this enumerator identifier. */
143 ident *nameid; /**< The name of the enumerator identifier. */
144 ir_type *owner; /**< owner type of this enumerator constant. */
147 /** Enum type attributes. */
149 ir_enum_const *enumer; /**< Contains all enumerator constants that represent a member
150 of the enum -- enumerators. */
153 /** Pointer type attributes. */
155 ir_type *points_to; /**< The type of the ir_entity the pointer points to. */
158 /** Primitive type attributes. */
160 ir_type *base_type; /**< For bitfield types: The base primitive type, NULL else. */
163 /** General type attributes. */
165 cls_attr ca; /**< Attributes of a class type */
166 stc_attr sa; /**< Attributes of a struct type */
167 mtd_attr ma; /**< Attributes of a method type */
168 uni_attr ua; /**< Attributes of an union type */
169 arr_attr aa; /**< Attributes of an array type */
170 enm_attr ea; /**< Attributes of an enumeration type */
171 ptr_attr pa; /**< Attributes of a pointer type */
172 pri_attr ba; /**< Attributes of a primitive bitfield type */
175 /** Additional type flags. */
176 typedef enum type_flags {
177 tf_none = 0, /**< No flags. */
178 tf_lowered_type = 1U << 0, /**< Set if this is a lowered type. */
179 tf_layout_fixed = 1U << 1, /**< Set if the layout of a type is fixed */
181 tf_frame_type = 1U << 2, /**< Set if this is a frame type. */
182 tf_segment = 1U << 3, /**< type represents a linker segment */
183 tf_global_type = 1U << 4, /**< Set only for the global type */
184 tf_tls_type = 1U << 5, /**< Set only for the tls type */
185 tf_constructors = 1U << 6, /**< Set only for the constructors segment type */
186 tf_destructors = 1U << 7, /**< Set only for the destructors segment type */
187 tf_variable_size = 1U << 8, /**< compound or array type may have variable size last element */
189 ENUM_BITSET(type_flags)
192 * An abstract data type to represent types.
194 * This is the abstract data type with which any type known in the
195 * compiled program can be represented. This includes types specified
196 * in the program as well as types defined by the language. In the
197 * view of the intermediate representation there is no difference
198 * between these types.
200 * There exist several kinds of types, arranged by the structure of
201 * the type. These are distinguished by a type opcode.
202 * A type is described by a set of attributes. Some of these attributes
203 * are common to all types, others depend on the kind of the type.
206 firm_kind kind; /**< the firm kind, must be k_type */
207 const tp_op *type_op; /**< the type operation of the type */
208 ident *name; /**< The name of the type */
209 ir_visibility visibility;/**< Visibility of entities of this type. */
210 unsigned flags; /**< Type flags, a bitmask of enum type_flags. */
211 unsigned size; /**< Size of an ir_entity of this type. This is
212 determined when fixing the layout of this
213 class. Size must be given in bytes. */
214 unsigned align; /**< Alignment of an ir_entity of this type. This
215 should be set according to the source
216 language needs. If not set, it's calculated
217 automatically by get_type_alignment().
218 Alignment must be given in bytes. */
219 ir_mode *mode; /**< The mode for atomic types */
220 ir_visited_t visit; /**< visited counter for walks of the type information */
221 void *link; /**< holds temporary data - like in irnode_t.h */
222 type_dbg_info *dbi; /**< A pointer to information for debug support. */
223 ir_type *higher_type; /**< link to highlevel type in case of lowered
227 long nr; /**< An unique node number for each node to make
230 tp_attr attr; /**< Type kind specific fields. This must be the
231 last entry in this struct! Varying size! */
234 void free_type_entities(ir_type *tp);
236 void free_class_entities (ir_type *clss);
237 void free_struct_entities (ir_type *strct);
238 void free_method_entities (ir_type *method);
239 void free_union_entities (ir_type *uni);
240 void free_array_entities (ir_type *array);
241 void free_enumeration_entities(ir_type *enumeration);
242 void free_pointer_entities (ir_type *pointer);
244 void free_array_automatic_entities(ir_type *array);
246 void free_class_attrs (ir_type *clss);
247 void free_struct_attrs (ir_type *strct);
248 void free_method_attrs (ir_type *method);
249 void free_union_attrs (ir_type *uni);
250 void free_array_attrs (ir_type *array);
251 void free_enumeration_attrs(ir_type *enumeration);
252 void free_pointer_attrs (ir_type *pointer);
254 void set_class_mode(ir_type *tp, ir_mode *mode);
255 void set_struct_mode(ir_type *tp, ir_mode *mode);
256 void set_pointer_mode(ir_type *tp, ir_mode *mode);
257 void set_primitive_mode(ir_type *tp, ir_mode *mode);
258 void set_enumeration_mode(ir_type *tp, ir_mode *mode);
260 void set_class_size(ir_type *tp, unsigned bytes);
261 void set_struct_size(ir_type *tp, unsigned bytes);
262 void set_union_size(ir_type *tp, unsigned bytes);
263 void set_array_size(ir_type *tp, unsigned bytes);
264 void set_default_size(ir_type *tp, unsigned bytes);
266 /** Set and get a class' dfn --
267 * This is an undocumented field, subject to change! */
268 void set_class_dfn(ir_type *clss, int dfn);
269 int get_class_dfn(const ir_type *clss);
271 void add_compound_member(ir_type *compound, ir_entity *entity);
273 /** Initialize the type module. */
274 void ir_init_type(ir_prog *irp);
276 /** free internal datastructures of type module */
277 void ir_finish_type(ir_prog *irp);
279 /** Clone an existing method type.
281 * @param tp the method type to clone.
282 * @param prefix if non-null, will be the prefix for the name of
285 * @return the cloned method type.
287 ir_type *clone_type_method(ir_type *tp);
289 extern ir_visited_t firm_type_visited;
291 static inline void _set_master_type_visited(ir_visited_t val)
293 firm_type_visited = val;
296 static inline ir_visited_t _get_master_type_visited(void)
298 return firm_type_visited;
301 static inline void _inc_master_type_visited(void)
306 static inline int is_lowered_type(const ir_type *tp)
308 return tp->flags & tf_lowered_type;
311 static inline ir_type *get_higher_type(const ir_type *tp)
313 return tp->higher_type;
316 static inline void set_higher_type(ir_type *tp, ir_type *higher_type)
318 tp->flags |= tf_lowered_type;
319 tp->higher_type = higher_type;
322 static inline void *_get_type_link(const ir_type *tp)
324 assert(tp->kind == k_type);
328 static inline void _set_type_link(ir_type *tp, void *l)
330 assert(tp->kind == k_type);
334 static inline const tp_op *_get_type_tpop(const ir_type *tp)
336 assert(tp->kind == k_type);
340 static inline ident *_get_type_tpop_nameid(const ir_type *tp)
342 assert(tp->kind == k_type);
343 return get_tpop_ident(tp->type_op);
346 static inline tp_opcode _get_type_tpop_code(const ir_type *tp)
348 assert(tp->kind == k_type);
349 return get_tpop_code(tp->type_op);
352 static inline ir_mode *_get_type_mode(const ir_type *tp)
354 assert(tp->kind == k_type);
358 static inline unsigned _get_type_size_bytes(const ir_type *tp)
360 assert(tp->kind == k_type);
364 static inline ir_type_state _get_type_state(const ir_type *tp)
366 assert(tp->kind == k_type);
367 return tp->flags & tf_layout_fixed ? layout_fixed : layout_undefined;
370 static inline ir_visited_t _get_type_visited(const ir_type *tp)
372 assert(tp->kind == k_type);
376 static inline void _set_type_visited(ir_type *tp, ir_visited_t num)
378 assert(tp->kind == k_type);
382 static inline void _mark_type_visited(ir_type *tp)
384 assert(tp->kind == k_type);
385 assert(tp->visit < firm_type_visited);
386 tp->visit = firm_type_visited;
389 static inline int _type_visited(const ir_type *tp)
391 assert(tp->kind == k_type);
392 return tp->visit >= firm_type_visited;
395 static inline int _type_not_visited(const ir_type *tp)
397 assert(tp->kind == k_type);
398 return tp->visit < firm_type_visited;
401 static inline type_dbg_info *_get_type_dbg_info(const ir_type *tp)
406 static inline void _set_type_dbg_info(ir_type *tp, type_dbg_info *db)
411 static inline int _is_type(const void *thing)
413 return get_kind(thing) == k_type;
416 static inline int _is_class_type(const ir_type *clss)
418 return clss->type_op == type_class;
421 static inline size_t _get_class_n_members(const ir_type *clss)
423 assert(clss->type_op == type_class);
424 return ARR_LEN(clss->attr.ca.members);
427 static inline ir_entity *_get_class_member(const ir_type *clss, size_t pos)
429 assert(clss->type_op == type_class);
430 assert(pos < _get_class_n_members(clss));
431 return clss->attr.ca.members[pos];
434 static inline unsigned _get_class_vtable_size(const ir_type *clss)
436 assert(clss->type_op == type_class);
437 return clss->attr.ca.vtable_size;
440 static inline void _set_class_vtable_size(ir_type *clss, unsigned vtable_size)
442 assert(clss->type_op == type_class);
443 clss->attr.ca.vtable_size = vtable_size;
446 static inline int _is_class_final(const ir_type *clss)
448 assert(clss->type_op == type_class);
449 return clss->attr.ca.clss_flags & cf_final_class;
452 static inline void _set_class_final(ir_type *clss, int final)
454 assert(clss->type_op == type_class);
456 clss->attr.ca.clss_flags |= cf_final_class;
458 clss->attr.ca.clss_flags &= ~cf_final_class;
461 static inline int _is_class_interface(const ir_type *clss)
463 assert(clss->type_op == type_class);
464 return clss->attr.ca.clss_flags & cf_interface_class;
467 static inline void _set_class_interface(ir_type *clss, int final)
469 assert(clss->type_op == type_class);
471 clss->attr.ca.clss_flags |= cf_interface_class;
473 clss->attr.ca.clss_flags &= ~cf_interface_class;
476 static inline int _is_class_abstract(const ir_type *clss)
478 assert(clss->type_op == type_class);
479 return clss->attr.ca.clss_flags & cf_absctract_class;
482 static inline void _set_class_abstract(ir_type *clss, int final)
484 assert(clss->type_op == type_class);
486 clss->attr.ca.clss_flags |= cf_absctract_class;
488 clss->attr.ca.clss_flags &= ~cf_absctract_class;
491 static inline int _is_struct_type(const ir_type *strct)
493 return (strct->type_op == type_struct);
496 static inline int _is_method_type(const ir_type *method)
498 return (method->type_op == type_method);
501 static inline int _is_union_type(const ir_type *uni)
503 return (uni->type_op == type_union);
506 static inline int _is_array_type(const ir_type *array)
508 return (array->type_op == type_array);
511 static inline int _is_enumeration_type(const ir_type *enumeration)
513 return (enumeration->type_op == type_enumeration);
516 static inline int _is_pointer_type(const ir_type *pointer)
518 return (pointer->type_op == type_pointer);
521 /** Returns true if a type is a primitive type. */
522 static inline int _is_primitive_type(const ir_type *primitive)
524 assert(primitive->kind == k_type);
525 return (primitive->type_op == type_primitive);
528 static inline int _is_atomic_type(const ir_type *tp)
530 assert(tp->kind == k_type);
531 return (_is_primitive_type(tp) || _is_pointer_type(tp) ||
532 _is_enumeration_type(tp));
535 static inline size_t _get_method_n_params(const ir_type *method)
537 assert(method->type_op == type_method);
538 return method->attr.ma.n_params;
541 static inline size_t _get_method_n_ress(const ir_type *method)
543 assert(method->type_op == type_method);
544 return method->attr.ma.n_res;
547 static inline mtp_additional_properties _get_method_additional_properties(const ir_type *method)
549 assert(method->type_op == type_method);
550 return method->attr.ma.properties;
553 static inline void _set_method_additional_properties(ir_type *method, mtp_additional_properties properties)
555 assert(method->type_op == type_method);
556 method->attr.ma.properties = properties;
559 static inline void _add_method_additional_properties(ir_type *method, mtp_additional_properties properties)
561 assert(method->type_op == type_method);
562 method->attr.ma.properties |= properties;
565 static inline unsigned _get_method_calling_convention(const ir_type *method)
567 assert(method->type_op == type_method);
568 return method->attr.ma.irg_calling_conv;
571 static inline void _set_method_calling_convention(ir_type *method, unsigned cc_mask)
573 assert(method->type_op == type_method);
574 method->attr.ma.irg_calling_conv = cc_mask;
577 ir_type *new_type_segment(ident *name, type_flags flags);
579 #endif /* FIRM_TR_TYPE_T_H */