3 * File name: ir/tr/type_t.h
4 * Purpose: Representation of types -- private header.
5 * Author: Goetz Lindenmaier
6 * Modified by: Michael Beck
9 * Copyright: (c) 2001-2003 Universität Karlsruhe
10 * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
13 #ifndef _FIRM_TR_TYPE_T_H_
14 #define _FIRM_TR_TYPE_T_H_
16 #include "firm_config.h"
25 * This file contains the datatypes hidden in type.h.
27 * @author Goetz Lindenmaier
28 * @see type.h tpop_t.h tpop.h
33 cf_none = 0, /**< No flags. */
34 cf_final_class = 1, /**< Set if a class is an final class */
35 cf_interface_class = 2, /**< Set if a class is an "interface" */
36 cf_absctract_class = 4, /**< Set if a class is "abstract" */
39 /** Class type attributes. */
41 entity **members; /**< Array containing the fields and methods of this class. */
42 ir_type **subtypes; /**< Array containing the direct subtypes. */
43 ir_type **supertypes; /**< Array containing the direct supertypes */
44 peculiarity peculiarity; /**< The peculiarity of this class. */
45 entity *type_info; /**< An entity representing this class, used for type info. */
46 int dfn; /**< A number that can be used for 'instanceof' operator. */
47 unsigned vtable_size; /**< The size of the vtable for this class. */
48 unsigned clss_flags; /**< Additional class flags. */
51 /** Struct type attributes. */
53 entity **members; /**< Fields of this struct. No method entities allowed. */
56 /** A (type, entity) pair. */
58 ir_type *tp; /**< A type. */
59 entity *ent; /**< An entity. */
62 /** Method type attributes. */
64 int n_params; /**< Number of parameters. */
65 tp_ent_pair *param_type; /**< Array of parameter type/value entities pairs. */
66 ir_type *value_params; /**< A type whose entities represent copied value arguments. */
67 int n_res; /**< Number of results. */
68 tp_ent_pair *res_type; /**< Array of result type/value entity pairs. */
69 ir_type *value_ress; /**< A type whose entities represent copied value results. */
70 variadicity variadicity; /**< The variadicity of the method. */
71 int first_variadic_param; /**< The index of the first variadic parameter or -1 if non-variadic .*/
72 unsigned additional_properties; /**< Set of additional method properties. */
73 unsigned irg_calling_conv; /**< A set of calling convention flags. */
76 /** Union type attributes. */
78 entity **members; /**< Fields of this union. No method entities allowed. */
81 /** Array type attributes. */
83 int n_dimensions; /**< Number of array dimensions. */
84 ir_node **lower_bound; /**< Lower bounds of dimensions. Usually all 0. */
85 ir_node **upper_bound; /**< Upper bounds or dimensions. */
86 int *order; /**< Ordering of dimensions. */
87 ir_type *element_type; /**< The type of the array elements. */
88 entity *element_ent; /**< Entity for the array elements, to be used for
89 element selection with a Sel node. */
92 /** An enumerator constant. */
93 struct ir_enum_const {
94 tarval *value; /**< The constants that represents this enumerator identifier. */
95 ident *nameid; /**< The name of the enumerator identifier. */
96 ir_type *owner; /**< owner type of this enumerator constant. */
99 /** Enum type attributes. */
101 ir_enum_const *enumer; /**< Contains all enumerator constants that represent a member
102 of the enum -- enumerators. */
105 /** Pointer type attributes. */
107 ir_type *points_to; /**< The type of the entity the pointer points to. */
111 typedef struct { * No private attr yet! *
116 typedef struct { * No private attr, must be smaller than others! *
120 /** General type attributes. */
122 cls_attr ca; /**< Attributes of a class type */
123 stc_attr sa; /**< Attributes of a struct type */
124 mtd_attr ma; /**< Attributes of a method type */
125 uni_attr ua; /**< Attributes of an union type */
126 arr_attr aa; /**< Attributes of an array type */
127 enm_attr ea; /**< Attributes of an enumeration type */
128 ptr_attr pa; /**< Attributes of a pointer type */
131 /** Additional type flags. */
133 tf_none = 0, /**< No flags. */
134 tf_frame_type = 1, /**< Set if this is a frame type. */
135 tf_value_param_type = 2, /**< Set if this is a value param type. */
136 tf_lowered_type = 4, /**< Set if this is a lowered type. */
137 tf_layout_fixed = 8, /**< Set if the layout of a type is fixed */
138 tf_global_type = 16, /**< Set only for the global type */
139 tf_tls_type = 32, /**< Set only for the tls type */
142 /** The structure of a type. */
144 firm_kind kind; /**< the firm kind, must be k_type */
145 const tp_op *type_op; /**< the type operation of the type */
146 ident *name; /**< The name of the type */
147 visibility visibility; /**< Visibility of entities of this type. */
148 unsigned flags; /**< Type flags, a bitmask of enum type_flags. */
149 int size; /**< Size of an entity of this type. This is determined
150 when fixing the layout of this class. Size must be
152 int align; /**< Alignment of an entity of this type. This should be
153 set according to the source language needs. If not set it's
154 calculated automatically by get_type_alignment().
155 Alignment must be given in bits. */
156 ir_mode *mode; /**< The mode for atomic types */
157 unsigned long visit; /**< visited counter for walks of the type information */
158 void *link; /**< holds temporary data - like in irnode_t.h */
159 struct dbg_info *dbi; /**< A pointer to information for debug support. */
160 ir_type *assoc_type; /**< The associated lowered/unlowered type */
162 /* ------------- fields for analyses ---------------*/
165 long nr; /**< An unique node number for each node to make output
168 tp_attr attr; /**< Type kind specific fields. This must be the last
169 entry in this struct! Varying size! */
173 * Creates a new type representation:
175 * @param type_op the kind of this type. May not be type_id.
176 * @param mode the mode to be used for this type, may be NULL
177 * @param name an ident for the name of this type.
178 * @param db debug info
180 * @return A new type of the given type. The remaining private attributes are not
181 * initialized. The type is in state layout_undefined.
184 new_type(tp_op *type_op, ir_mode *mode, ident *name, dbg_info *db);
185 void free_type_attrs (ir_type *tp);
187 void free_class_entities (ir_type *clss);
188 void free_struct_entities (ir_type *strct);
189 void free_method_entities (ir_type *method);
190 void free_union_entities (ir_type *uni);
191 void free_array_entities (ir_type *array);
192 void free_enumeration_entities(ir_type *enumeration);
193 void free_pointer_entities (ir_type *pointer);
195 void free_array_automatic_entities(ir_type *array);
197 void free_class_attrs (ir_type *clss);
198 void free_struct_attrs (ir_type *strct);
199 void free_method_attrs (ir_type *method);
200 void free_union_attrs (ir_type *uni);
201 void free_array_attrs (ir_type *array);
202 void free_enumeration_attrs(ir_type *enumeration);
203 void free_pointer_attrs (ir_type *pointer);
205 void set_class_mode(ir_type *tp, ir_mode *mode);
206 void set_struct_mode(ir_type *tp, ir_mode *mode);
207 void set_pointer_mode(ir_type *tp, ir_mode *mode);
208 void set_primitive_mode(ir_type *tp, ir_mode *mode);
209 void set_enumeration_mode(ir_type *tp, ir_mode *mode);
211 void set_class_size_bits(ir_type *tp, int bits);
212 void set_struct_size_bits(ir_type *tp, int bits);
213 void set_union_size_bits(ir_type *tp, int bits);
214 void set_array_size_bits(ir_type *tp, int size);
215 void set_default_size_bits(ir_type *tp, int size);
218 * Initialize the type module.
220 * @param builtin_db debug info for built-in objects
221 * @param default_cc_mask default calling conventions for methods
223 void firm_init_type(dbg_info *builtin_db, unsigned default_cc_mask);
226 /* ------------------- *
228 * ------------------- */
230 extern unsigned long firm_type_visited;
232 static INLINE void _set_master_type_visited(unsigned long val) { firm_type_visited = val; }
233 static INLINE unsigned long _get_master_type_visited(void) { return firm_type_visited; }
234 static INLINE void _inc_master_type_visited(void) { ++firm_type_visited; }
237 _get_type_link(const ir_type *tp) {
238 assert(tp && tp->kind == k_type);
243 _set_type_link(ir_type *tp, void *l) {
244 assert(tp && tp->kind == k_type);
248 static INLINE const tp_op*
249 _get_type_tpop(const ir_type *tp) {
250 assert(tp && tp->kind == k_type);
255 _get_type_tpop_nameid(const ir_type *tp) {
256 assert(tp && tp->kind == k_type);
257 return get_tpop_ident(tp->type_op);
260 static INLINE tp_opcode
261 _get_type_tpop_code(const ir_type *tp) {
262 assert(tp && tp->kind == k_type);
263 return get_tpop_code(tp->type_op);
266 static INLINE ir_mode *
267 _get_type_mode(const ir_type *tp) {
268 assert(tp && tp->kind == k_type);
272 static INLINE ident *
273 _get_type_ident(const ir_type *tp) {
274 assert(tp && tp->kind == k_type);
279 _set_type_ident(ir_type *tp, ident* id) {
280 assert(tp && tp->kind == k_type);
285 _get_type_size_bits(const ir_type *tp) {
286 assert(tp && tp->kind == k_type);
291 _get_type_size_bytes(const ir_type *tp) {
292 int size = _get_type_size_bits(tp);
295 if ((size & 7) != 0) {
296 assert(0 && "cannot take byte size of this type");
302 static INLINE type_state
303 _get_type_state(const ir_type *tp) {
304 assert(tp && tp->kind == k_type);
305 return tp->flags & tf_layout_fixed ? layout_fixed : layout_undefined;
308 static INLINE unsigned long
309 _get_type_visited(const ir_type *tp) {
310 assert(tp && tp->kind == k_type);
315 _set_type_visited(ir_type *tp, unsigned long num) {
316 assert(tp && tp->kind == k_type);
321 _mark_type_visited(ir_type *tp) {
322 assert(tp && tp->kind == k_type);
323 assert(tp->visit < firm_type_visited);
324 tp->visit = firm_type_visited;
328 _type_visited(const ir_type *tp) {
329 assert(tp && tp->kind == k_type);
330 return tp->visit >= firm_type_visited;
334 _type_not_visited(const ir_type *tp) {
335 assert(tp && tp->kind == k_type);
336 return tp->visit < firm_type_visited;
340 _is_type(const void *thing) {
341 return (get_kind(thing) == k_type);
345 _is_class_type(const ir_type *clss) {
347 return (clss->type_op == type_class);
351 _get_class_n_members (const ir_type *clss) {
352 assert(clss && (clss->type_op == type_class));
353 return (ARR_LEN (clss->attr.ca.members));
356 static INLINE entity *
357 _get_class_member (const ir_type *clss, int pos) {
358 assert(clss && (clss->type_op == type_class));
359 assert(pos >= 0 && pos < _get_class_n_members(clss));
360 return clss->attr.ca.members[pos];
363 static INLINE unsigned
364 _get_class_vtable_size(const ir_type *clss) {
365 assert(clss && (clss->type_op == type_class));
366 return clss->attr.ca.vtable_size;
370 _set_class_vtable_size(ir_type *clss, unsigned vtable_size) {
371 assert(clss && (clss->type_op == type_class));
372 clss->attr.ca.vtable_size = vtable_size;
376 _is_class_final(const ir_type *clss) {
377 assert(clss && (clss->type_op == type_class));
378 return clss->attr.ca.clss_flags & cf_final_class;
382 _set_class_final(ir_type *clss, int final) {
383 assert(clss && (clss->type_op == type_class));
385 clss->attr.ca.clss_flags |= cf_final_class;
387 clss->attr.ca.clss_flags &= ~cf_final_class;
391 _is_class_interface(const ir_type *clss) {
392 assert(clss && (clss->type_op == type_class));
393 return clss->attr.ca.clss_flags & cf_interface_class;
397 _set_class_interface(ir_type *clss, int final) {
398 assert(clss && (clss->type_op == type_class));
400 clss->attr.ca.clss_flags |= cf_interface_class;
402 clss->attr.ca.clss_flags &= ~cf_interface_class;
406 _is_class_abstract(const ir_type *clss) {
407 assert(clss && (clss->type_op == type_class));
408 return clss->attr.ca.clss_flags & cf_absctract_class;
412 _set_class_abstract(ir_type *clss, int final) {
413 assert(clss && (clss->type_op == type_class));
415 clss->attr.ca.clss_flags |= cf_absctract_class;
417 clss->attr.ca.clss_flags &= ~cf_absctract_class;
421 _is_struct_type(const ir_type *strct) {
423 return (strct->type_op == type_struct);
427 _is_method_type(const ir_type *method) {
429 return (method->type_op == type_method);
433 _is_union_type(const ir_type *uni) {
435 return (uni->type_op == type_union);
439 _is_array_type(const ir_type *array) {
441 return (array->type_op == type_array);
445 _is_enumeration_type(const ir_type *enumeration) {
447 return (enumeration->type_op == type_enumeration);
451 _is_pointer_type(const ir_type *pointer) {
453 return (pointer->type_op == type_pointer);
456 /** Returns true if a type is a primitive type. */
458 _is_primitive_type(const ir_type *primitive) {
459 assert(primitive && primitive->kind == k_type);
460 return (primitive->type_op == type_primitive);
464 _is_atomic_type(const ir_type *tp) {
465 assert(tp && tp->kind == k_type);
466 return (_is_primitive_type(tp) || _is_pointer_type(tp) ||
467 _is_enumeration_type(tp));
471 _get_method_n_params(const ir_type *method) {
472 assert(method && (method->type_op == type_method));
473 return method->attr.ma.n_params;
477 _get_method_n_ress(const ir_type *method) {
478 assert(method && (method->type_op == type_method));
479 return method->attr.ma.n_res;
482 static INLINE unsigned
483 _get_method_additional_properties(const ir_type *method) {
484 assert(method && (method->type_op == type_method));
485 return method->attr.ma.additional_properties;
489 _set_method_additional_properties(ir_type *method, unsigned mask) {
490 assert(method && (method->type_op == type_method));
492 /* do not allow to set the mtp_property_inherited flag or
493 * the automatic inheritance of flags will not work */
494 method->attr.ma.additional_properties = mask & ~mtp_property_inherited;
498 _set_method_additional_property(ir_type *method, mtp_additional_property flag) {
499 assert(method && (method->type_op == type_method));
501 /* do not allow to set the mtp_property_inherited flag or
502 * the automatic inheritance of flags will not work */
503 method->attr.ma.additional_properties |= flag & ~mtp_property_inherited;
506 static INLINE unsigned
507 _get_method_calling_convention(const ir_type *method) {
508 assert(method && (method->type_op == type_method));
509 return method->attr.ma.irg_calling_conv;
513 _set_method_calling_convention(ir_type *method, unsigned cc_mask) {
514 assert(method && (method->type_op == type_method));
515 method->attr.ma.irg_calling_conv = cc_mask;
518 #define set_master_type_visited(val) _set_master_type_visited(val)
519 #define get_master_type_visited() _get_master_type_visited()
520 #define inc_master_type_visited() _inc_master_type_visited()
521 #define get_type_link(tp) _get_type_link(tp)
522 #define set_type_link(tp, l) _set_type_link(tp, l)
523 #define get_type_tpop(tp) _get_type_tpop(tp)
524 #define get_type_tpop_nameid(tp) _get_type_tpop_nameid(tp)
525 #define get_type_tpop_code(tp) _get_type_tpop_code(tp)
526 #define get_type_mode(tp) _get_type_mode(tp)
527 #define get_type_ident(tp) _get_type_ident(tp)
528 #define set_type_ident(tp, id) _set_type_ident(tp, id)
529 #define get_type_size_bits(tp) _get_type_size_bits(tp)
530 #define get_type_size_bytes(tp) _get_type_size_bytes(tp)
531 #define get_type_state(tp) _get_type_state(tp)
532 #define get_type_visited(tp) _get_type_visited(tp)
533 #define set_type_visited(tp, num) _set_type_visited(tp, num)
534 #define mark_type_visited(tp) _mark_type_visited(tp)
535 #define type_visited(tp) _type_visited(tp)
536 #define type_not_visited(tp) _type_not_visited(tp)
537 #define is_type(thing) _is_type(thing)
538 #define is_Class_type(clss) _is_class_type(clss)
539 #define get_class_n_members(clss) _get_class_n_members(clss)
540 #define get_class_member(clss, pos) _get_class_member(clss, pos)
541 #define get_class_vtable_size(clss) _get_class_vtable_size(clss)
542 #define set_class_vtable_size(clss, size) _set_class_vtable_size(clss, size)
543 #define is_class_final(clss) _is_class_final(clss)
544 #define set_class_final(clss, flag) _set_class_final(clss, flag)
545 #define is_class_interface(clss) _is_class_interface(clss)
546 #define set_class_interface(clss, flag) _set_class_interface(clss, flag)
547 #define is_class_abstract(clss) _is_class_abstract(clss)
548 #define set_class_abstract(clss, flag) _set_class_abstract(clss, flag)
549 #define is_Struct_type(strct) _is_struct_type(strct)
550 #define is_Method_type(method) _is_method_type(method)
551 #define is_Union_type(uni) _is_union_type(uni)
552 #define is_Array_type(array) _is_array_type(array)
553 #define is_Enumeration_type(enumeration) _is_enumeration_type(enumeration)
554 #define is_Pointer_type(pointer) _is_pointer_type(pointer)
555 #define is_Primitive_type(primitive) _is_primitive_type(primitive)
556 #define is_atomic_type(tp) _is_atomic_type(tp)
557 #define get_method_n_params(method) _get_method_n_params(method)
558 #define get_method_n_ress(method) _get_method_n_ress(method)
559 #define get_method_additional_properties(method) _get_method_additional_properties(method)
560 #define set_method_additional_properties(method, mask) _set_method_additional_properties(method, mask)
561 #define set_method_additional_property(method, flag) _set_method_additional_property(method, flag)
562 #define get_method_calling_convention(method) _get_method_calling_convention(method)
563 #define set_method_calling_convention(method, cc_mask) _set_method_calling_convention(method, cc_mask)
565 #endif /* _FIRM_TR_TYPE_T_H_ */