2 * This file is part of libFirm.
3 * Copyright (C) 2012 University of Karlsruhe.
8 * @brief Representation of types -- private header.
9 * @author Goetz Lindenmaier, Michael Beck
10 * @see type.h tpop_t.h tpop.h
12 #ifndef FIRM_TR_TYPE_T_H
13 #define FIRM_TR_TYPE_T_H
19 #include "firm_common.h"
23 #define set_master_type_visited(val) _set_master_type_visited(val)
24 #define get_master_type_visited() _get_master_type_visited()
25 #define inc_master_type_visited() _inc_master_type_visited()
26 #define get_type_link(tp) _get_type_link(tp)
27 #define set_type_link(tp, l) _set_type_link(tp, l)
28 #define get_type_tpop(tp) _get_type_tpop(tp)
29 #define get_type_tpop_nameid(tp) _get_type_tpop_nameid(tp)
30 #define get_type_tpop_code(tp) _get_type_tpop_code(tp)
31 #define get_type_mode(tp) _get_type_mode(tp)
32 #define get_type_size_bytes(tp) _get_type_size_bytes(tp)
33 #define get_type_state(tp) _get_type_state(tp)
34 #define get_type_visited(tp) _get_type_visited(tp)
35 #define set_type_visited(tp, num) _set_type_visited(tp, num)
36 #define mark_type_visited(tp) _mark_type_visited(tp)
37 #define type_visited(tp) _type_visited(tp)
38 #define type_not_visited(tp) _type_not_visited(tp)
39 #define get_type_dbg_info(tp) _get_type_dbg_info(tp)
40 #define set_type_dbg_info(tp, db) _set_type_dbg_info(tp, db)
41 #define is_type(thing) _is_type(thing)
42 #define is_Class_type(clss) _is_class_type(clss)
43 #define get_class_n_members(clss) _get_class_n_members(clss)
44 #define get_class_member(clss, pos) _get_class_member(clss, pos)
45 #define get_class_vtable_size(clss) _get_class_vtable_size(clss)
46 #define set_class_vtable_size(clss, size) _set_class_vtable_size(clss, size)
47 #define is_class_final(clss) _is_class_final(clss)
48 #define set_class_final(clss, flag) _set_class_final(clss, flag)
49 #define is_class_interface(clss) _is_class_interface(clss)
50 #define set_class_interface(clss, flag) _set_class_interface(clss, flag)
51 #define is_class_abstract(clss) _is_class_abstract(clss)
52 #define set_class_abstract(clss, flag) _set_class_abstract(clss, flag)
53 #define is_Struct_type(strct) _is_struct_type(strct)
54 #define is_Method_type(method) _is_method_type(method)
55 #define is_Union_type(uni) _is_union_type(uni)
56 #define is_Array_type(array) _is_array_type(array)
57 #define is_Enumeration_type(enumeration) _is_enumeration_type(enumeration)
58 #define is_Pointer_type(pointer) _is_pointer_type(pointer)
59 #define is_Primitive_type(primitive) _is_primitive_type(primitive)
60 #define is_atomic_type(tp) _is_atomic_type(tp)
61 #define get_method_n_params(method) _get_method_n_params(method)
62 #define get_method_n_ress(method) _get_method_n_ress(method)
63 #define get_method_additional_properties(method) _get_method_additional_properties(method)
64 #define set_method_additional_properties(method, mask) _set_method_additional_properties(method, mask)
65 #define add_method_additional_properties(method, flag) _add_method_additional_properties(method, flag)
66 #define get_method_calling_convention(method) _get_method_calling_convention(method)
67 #define set_method_calling_convention(method, cc_mask) _set_method_calling_convention(method, cc_mask)
71 cf_none = 0, /**< No flags. */
72 cf_final_class = 1, /**< Set if a class is an final class */
73 cf_interface_class = 2, /**< Set if a class is an "interface" */
74 cf_absctract_class = 4, /**< Set if a class is "abstract" */
77 /** Class type attributes. */
79 ir_entity **members; /**< Array containing the fields and methods of this class. */
80 ir_type **subtypes; /**< Array containing the direct subtypes. */
81 ir_type **supertypes; /**< Array containing the direct supertypes */
82 ir_peculiarity peculiarity; /**< The peculiarity of this class. */
83 int dfn; /**< A number that can be used for 'instanceof' operator. */
84 unsigned vtable_size; /**< The size of the vtable for this class. */
85 unsigned clss_flags; /**< Additional class flags. */
88 /** Struct type attributes. */
90 ir_entity **members; /**< Fields of this struct. No method entities allowed. */
93 /** A (type, ir_entity) pair. */
95 ir_type *tp; /**< A type. */
96 ir_entity *ent; /**< An ir_entity. */
99 /** Method type attributes. */
101 size_t n_params; /**< Number of parameters. */
102 tp_ent_pair *params; /**< Array of parameter type/value entities pairs. */
103 size_t n_res; /**< Number of results. */
104 tp_ent_pair *res_type; /**< Array of result type/value ir_entity pairs. */
105 ir_variadicity variadicity; /**< The variadicity of the method. */
106 mtp_additional_properties properties; /**< Set of additional method properties. */
107 unsigned irg_calling_conv; /**< A set of calling convention flags. */
110 /** Union type attributes. */
112 ir_entity **members; /**< Fields of this union. No method entities allowed. */
115 /** Array type attributes. */
117 size_t n_dimensions; /**< Number of array dimensions. */
118 ir_node **lower_bound; /**< Lower bounds of dimensions. Usually all 0. */
119 ir_node **upper_bound; /**< Upper bounds or dimensions. */
120 size_t *order; /**< Ordering of dimensions. */
121 ir_type *element_type; /**< The type of the array elements. */
122 ir_entity *element_ent; /**< entity for the array elements, to be used for
123 element selection with a Sel node. */
126 /** An enumerator constant. */
127 struct ir_enum_const {
128 ir_tarval *value; /**< The constants that represents this enumerator identifier. */
129 ident *nameid; /**< The name of the enumerator identifier. */
130 ir_type *owner; /**< owner type of this enumerator constant. */
133 /** Enum type attributes. */
135 ir_enum_const *enumer; /**< Contains all enumerator constants that represent a member
136 of the enum -- enumerators. */
139 /** Pointer type attributes. */
141 ir_type *points_to; /**< The type of the ir_entity the pointer points to. */
144 /** Primitive type attributes. */
146 ir_type *base_type; /**< For bitfield types: The base primitive type, NULL else. */
149 /** General type attributes. */
151 cls_attr ca; /**< Attributes of a class type */
152 stc_attr sa; /**< Attributes of a struct type */
153 mtd_attr ma; /**< Attributes of a method type */
154 uni_attr ua; /**< Attributes of an union type */
155 arr_attr aa; /**< Attributes of an array type */
156 enm_attr ea; /**< Attributes of an enumeration type */
157 ptr_attr pa; /**< Attributes of a pointer type */
158 pri_attr ba; /**< Attributes of a primitive bitfield type */
161 /** Additional type flags. */
162 typedef enum type_flags {
163 tf_none = 0, /**< No flags. */
164 tf_lowered_type = 1U << 0, /**< Set if this is a lowered type. */
165 tf_layout_fixed = 1U << 1, /**< Set if the layout of a type is fixed */
167 tf_frame_type = 1U << 2, /**< Set if this is a frame type. */
168 tf_segment = 1U << 3, /**< type represents a linker segment */
169 tf_global_type = 1U << 4, /**< Set only for the global type */
170 tf_tls_type = 1U << 5, /**< Set only for the tls type */
171 tf_constructors = 1U << 6, /**< Set only for the constructors segment type */
172 tf_destructors = 1U << 7, /**< Set only for the destructors segment type */
173 tf_variable_size = 1U << 8, /**< compound or array type may have variable size last element */
175 ENUM_BITSET(type_flags)
178 * An abstract data type to represent types.
180 * This is the abstract data type with which any type known in the
181 * compiled program can be represented. This includes types specified
182 * in the program as well as types defined by the language. In the
183 * view of the intermediate representation there is no difference
184 * between these types.
186 * There exist several kinds of types, arranged by the structure of
187 * the type. These are distinguished by a type opcode.
188 * A type is described by a set of attributes. Some of these attributes
189 * are common to all types, others depend on the kind of the type.
192 firm_kind kind; /**< the firm kind, must be k_type */
193 const tp_op *type_op; /**< the type operation of the type */
194 ident *name; /**< The name of the type */
195 ir_visibility visibility;/**< Visibility of entities of this type. */
196 unsigned flags; /**< Type flags, a bitmask of enum type_flags. */
197 unsigned size; /**< Size of an ir_entity of this type. This is
198 determined when fixing the layout of this
199 class. Size must be given in bytes. */
200 unsigned align; /**< Alignment of an ir_entity of this type. This
201 should be set according to the source
202 language needs. If not set, it's calculated
203 automatically by get_type_alignment().
204 Alignment must be given in bytes. */
205 ir_mode *mode; /**< The mode for atomic types */
206 ir_visited_t visit; /**< visited counter for walks of the type information */
207 void *link; /**< holds temporary data - like in irnode_t.h */
208 type_dbg_info *dbi; /**< A pointer to information for debug support. */
209 ir_type *higher_type; /**< link to highlevel type in case of lowered
213 long nr; /**< An unique node number for each node to make
216 tp_attr attr; /**< Type kind specific fields. This must be the
217 last entry in this struct! Varying size! */
220 void free_type_entities(ir_type *tp);
222 void free_class_entities (ir_type *clss);
223 void free_struct_entities (ir_type *strct);
224 void free_method_entities (ir_type *method);
225 void free_union_entities (ir_type *uni);
226 void free_array_entities (ir_type *array);
227 void free_enumeration_entities(ir_type *enumeration);
228 void free_pointer_entities (ir_type *pointer);
230 void free_array_automatic_entities(ir_type *array);
232 void free_class_attrs (ir_type *clss);
233 void free_struct_attrs (ir_type *strct);
234 void free_method_attrs (ir_type *method);
235 void free_union_attrs (ir_type *uni);
236 void free_array_attrs (ir_type *array);
237 void free_enumeration_attrs(ir_type *enumeration);
238 void free_pointer_attrs (ir_type *pointer);
240 void set_class_mode(ir_type *tp, ir_mode *mode);
241 void set_struct_mode(ir_type *tp, ir_mode *mode);
242 void set_pointer_mode(ir_type *tp, ir_mode *mode);
243 void set_primitive_mode(ir_type *tp, ir_mode *mode);
244 void set_enumeration_mode(ir_type *tp, ir_mode *mode);
246 void set_class_size(ir_type *tp, unsigned bytes);
247 void set_struct_size(ir_type *tp, unsigned bytes);
248 void set_union_size(ir_type *tp, unsigned bytes);
249 void set_array_size(ir_type *tp, unsigned bytes);
250 void set_default_size(ir_type *tp, unsigned bytes);
252 /** Set and get a class' dfn --
253 * This is an undocumented field, subject to change! */
254 void set_class_dfn(ir_type *clss, int dfn);
255 int get_class_dfn(const ir_type *clss);
257 void add_compound_member(ir_type *compound, ir_entity *entity);
259 /** Initialize the type module. */
260 void ir_init_type(ir_prog *irp);
262 /** free internal datastructures of type module */
263 void ir_finish_type(ir_prog *irp);
265 /** Clone an existing method type.
267 * @param tp the method type to clone.
268 * @param prefix if non-null, will be the prefix for the name of
271 * @return the cloned method type.
273 ir_type *clone_type_method(ir_type *tp);
275 extern ir_visited_t firm_type_visited;
277 static inline void _set_master_type_visited(ir_visited_t val)
279 firm_type_visited = val;
282 static inline ir_visited_t _get_master_type_visited(void)
284 return firm_type_visited;
287 static inline void _inc_master_type_visited(void)
292 static inline int is_lowered_type(const ir_type *tp)
294 return tp->flags & tf_lowered_type;
297 static inline ir_type *get_higher_type(const ir_type *tp)
299 return tp->higher_type;
302 static inline void set_higher_type(ir_type *tp, ir_type *higher_type)
304 tp->flags |= tf_lowered_type;
305 tp->higher_type = higher_type;
308 static inline void *_get_type_link(const ir_type *tp)
310 assert(tp->kind == k_type);
314 static inline void _set_type_link(ir_type *tp, void *l)
316 assert(tp->kind == k_type);
320 static inline const tp_op *_get_type_tpop(const ir_type *tp)
322 assert(tp->kind == k_type);
326 static inline ident *_get_type_tpop_nameid(const ir_type *tp)
328 assert(tp->kind == k_type);
329 return get_tpop_ident(tp->type_op);
332 static inline tp_opcode _get_type_tpop_code(const ir_type *tp)
334 assert(tp->kind == k_type);
335 return get_tpop_code(tp->type_op);
338 static inline ir_mode *_get_type_mode(const ir_type *tp)
340 assert(tp->kind == k_type);
344 static inline unsigned _get_type_size_bytes(const ir_type *tp)
346 assert(tp->kind == k_type);
350 static inline ir_type_state _get_type_state(const ir_type *tp)
352 assert(tp->kind == k_type);
353 return tp->flags & tf_layout_fixed ? layout_fixed : layout_undefined;
356 static inline ir_visited_t _get_type_visited(const ir_type *tp)
358 assert(tp->kind == k_type);
362 static inline void _set_type_visited(ir_type *tp, ir_visited_t num)
364 assert(tp->kind == k_type);
368 static inline void _mark_type_visited(ir_type *tp)
370 assert(tp->kind == k_type);
371 assert(tp->visit < firm_type_visited);
372 tp->visit = firm_type_visited;
375 static inline int _type_visited(const ir_type *tp)
377 assert(tp->kind == k_type);
378 return tp->visit >= firm_type_visited;
381 static inline int _type_not_visited(const ir_type *tp)
383 assert(tp->kind == k_type);
384 return tp->visit < firm_type_visited;
387 static inline type_dbg_info *_get_type_dbg_info(const ir_type *tp)
392 static inline void _set_type_dbg_info(ir_type *tp, type_dbg_info *db)
397 static inline int _is_type(const void *thing)
399 return get_kind(thing) == k_type;
402 static inline int _is_class_type(const ir_type *clss)
404 return clss->type_op == type_class;
407 static inline size_t _get_class_n_members(const ir_type *clss)
409 assert(clss->type_op == type_class);
410 return ARR_LEN(clss->attr.ca.members);
413 static inline ir_entity *_get_class_member(const ir_type *clss, size_t pos)
415 assert(clss->type_op == type_class);
416 assert(pos < _get_class_n_members(clss));
417 return clss->attr.ca.members[pos];
420 static inline unsigned _get_class_vtable_size(const ir_type *clss)
422 assert(clss->type_op == type_class);
423 return clss->attr.ca.vtable_size;
426 static inline void _set_class_vtable_size(ir_type *clss, unsigned vtable_size)
428 assert(clss->type_op == type_class);
429 clss->attr.ca.vtable_size = vtable_size;
432 static inline int _is_class_final(const ir_type *clss)
434 assert(clss->type_op == type_class);
435 return clss->attr.ca.clss_flags & cf_final_class;
438 static inline void _set_class_final(ir_type *clss, int final)
440 assert(clss->type_op == type_class);
442 clss->attr.ca.clss_flags |= cf_final_class;
444 clss->attr.ca.clss_flags &= ~cf_final_class;
447 static inline int _is_class_interface(const ir_type *clss)
449 assert(clss->type_op == type_class);
450 return clss->attr.ca.clss_flags & cf_interface_class;
453 static inline void _set_class_interface(ir_type *clss, int final)
455 assert(clss->type_op == type_class);
457 clss->attr.ca.clss_flags |= cf_interface_class;
459 clss->attr.ca.clss_flags &= ~cf_interface_class;
462 static inline int _is_class_abstract(const ir_type *clss)
464 assert(clss->type_op == type_class);
465 return clss->attr.ca.clss_flags & cf_absctract_class;
468 static inline void _set_class_abstract(ir_type *clss, int final)
470 assert(clss->type_op == type_class);
472 clss->attr.ca.clss_flags |= cf_absctract_class;
474 clss->attr.ca.clss_flags &= ~cf_absctract_class;
477 static inline int _is_struct_type(const ir_type *strct)
479 return (strct->type_op == type_struct);
482 static inline int _is_method_type(const ir_type *method)
484 return (method->type_op == type_method);
487 static inline int _is_union_type(const ir_type *uni)
489 return (uni->type_op == type_union);
492 static inline int _is_array_type(const ir_type *array)
494 return (array->type_op == type_array);
497 static inline int _is_enumeration_type(const ir_type *enumeration)
499 return (enumeration->type_op == type_enumeration);
502 static inline int _is_pointer_type(const ir_type *pointer)
504 return (pointer->type_op == type_pointer);
507 /** Returns true if a type is a primitive type. */
508 static inline int _is_primitive_type(const ir_type *primitive)
510 assert(primitive->kind == k_type);
511 return (primitive->type_op == type_primitive);
514 static inline int _is_atomic_type(const ir_type *tp)
516 assert(tp->kind == k_type);
517 return (_is_primitive_type(tp) || _is_pointer_type(tp) ||
518 _is_enumeration_type(tp));
521 static inline size_t _get_method_n_params(const ir_type *method)
523 assert(method->type_op == type_method);
524 return method->attr.ma.n_params;
527 static inline size_t _get_method_n_ress(const ir_type *method)
529 assert(method->type_op == type_method);
530 return method->attr.ma.n_res;
533 static inline mtp_additional_properties _get_method_additional_properties(const ir_type *method)
535 assert(method->type_op == type_method);
536 return method->attr.ma.properties;
539 static inline void _set_method_additional_properties(ir_type *method, mtp_additional_properties properties)
541 assert(method->type_op == type_method);
542 method->attr.ma.properties = properties;
545 static inline void _add_method_additional_properties(ir_type *method, mtp_additional_properties properties)
547 assert(method->type_op == type_method);
548 method->attr.ma.properties |= properties;
551 static inline unsigned _get_method_calling_convention(const ir_type *method)
553 assert(method->type_op == type_method);
554 return method->attr.ma.irg_calling_conv;
557 static inline void _set_method_calling_convention(ir_type *method, unsigned cc_mask)
559 assert(method->type_op == type_method);
560 method->attr.ma.irg_calling_conv = cc_mask;
563 ir_type *new_type_segment(ident *name, type_flags flags);
565 #endif /* FIRM_TR_TYPE_T_H */