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
31 /** class attributes */
33 entity **members; /**< fields and methods of this class */
34 ir_type **subtypes; /**< direct subtypes */
35 ir_type **supertypes;/**< direct supertypes */
36 peculiarity peculiarity; /**< peculiarity of this class */
37 entity *type_info; /**< a entity representing this class, used for type info */
38 unsigned vtable_size;/**< size of the vtable */
39 unsigned final; /**< non-zero if this is a final class */
40 int dfn; /**< number used for 'instanceof' operator */
43 /** struct attributes */
45 entity **members; /**< Fields of this struct. No method entities allowed. */
48 /** A (type, entity) pair */
50 ir_type *tp; /**< A type. */
51 entity *ent; /**< An entity. */
54 /** method attributes */
56 int n_params; /**< Number of parameters. */
57 tp_ent_pair *param_type; /**< Array of parameter type/value entities pairs. */
58 ir_type *value_params; /**< A type whose entities represent copied value arguments. */
59 int n_res; /**< Number of results. */
60 tp_ent_pair *res_type; /**< Array of result type/value entity pairs. */
61 ir_type *value_ress; /**< A type whose entities represent copied value results. */
62 variadicity variadicity; /**< variadicity of the method. */
63 int first_variadic_param; /**< index of the first variadic parameter or -1 if non-variadic .*/
64 unsigned additional_properties; /**< Set of additional method properties. */
65 unsigned irg_calling_conv; /**< A set of calling convention flags. */
68 /** union attributes */
70 entity **members; /**< fields of this union. No method entities allowed. */
73 /** array attributes */
75 int n_dimensions; /**< Number of array dimensions. */
76 ir_node **lower_bound; /**< Lower bounds of dimensions. Usually all 0. */
77 ir_node **upper_bound; /**< Upper bounds or dimensions. */
78 int *order; /**< Ordering of dimensions. */
79 ir_type *element_type; /**< The type of the array elements. */
80 entity *element_ent; /**< Entity for the array elements, to be used for
81 element selection with Sel. */
84 /** enum attributes */
86 int n_enums; /**< Number of enumerators. */
87 tarval **enumer; /**< Contains all constants that represent a member
88 of the enum -- enumerators. */
89 ident **enum_nameid;/**< Contains the names of the enum fields as specified by
93 /** pointer attributes */
95 ir_type *points_to; /**< The type of the entity the pointer points to. */
99 typedef struct { * No private attr yet! *
104 typedef struct { * No private attr, must be smaller than others! *
108 /** General type attributes. */
110 cls_attr ca; /**< attributes of a class type */
111 stc_attr sa; /**< attributes of a struct type */
112 mtd_attr ma; /**< attributes of a method type */
113 uni_attr ua; /**< attributes of an union type */
114 arr_attr aa; /**< attributes of an array type */
115 enm_attr ea; /**< attributes of an enumeration type */
116 ptr_attr pa; /**< attributes of a pointer type */
120 tf_none = 0, /**< No flags. */
121 tf_frame_type = 1, /**< Set if this is a frame type. */
122 tf_lowered_type = 2, /**< Set if this is a lowered type. */
123 tf_layout_fixed = 4 /**< set if the layout of a type is fixed */
126 /** the structure of a type */
128 firm_kind kind; /**< the firm kind, must be k_type */
129 const tp_op *type_op; /**< the type operation of the type */
130 ident *name; /**< The name of the type */
131 visibility visibility; /**< Visibility of entities of this type. */
132 unsigned flags; /**< Type flags, a bitmask of enum type_flags. */
133 int size; /**< Size of an entity of this type. This is determined
134 when fixing the layout of this class. Size must be
136 int align; /**< Alignment of an entity of this type. This should be
137 set according to the source language needs. If not set it's
138 calculated automatically by get_type_alignment().
139 Alignment must be given in bits. */
140 ir_mode *mode; /**< The mode for atomic types */
141 unsigned long visit; /**< visited counter for walks of the type information */
142 void *link; /**< holds temporary data - like in irnode_t.h */
143 struct dbg_info *dbi; /**< A pointer to information for debug support. */
144 ir_type *assoc_type; /**< The associated lowered/unlowered type */
146 /* ------------- fields for analyses ---------------*/
149 long nr; /**< a unique node number for each node to make output
152 tp_attr attr; /* type kind specific fields. This must be the last
153 entry in this struct! Varying size! */
157 * Creates a new type representation:
159 * @param type_op the kind of this type. May not be type_id.
160 * @param mode the mode to be used for this type, may be NULL
161 * @param name an ident for the name of this type.
162 * @param db debug info
164 * @return A new type of the given type. The remaining private attributes are not
165 * initialized. The type is in state layout_undefined.
168 new_type(tp_op *type_op, ir_mode *mode, ident *name, dbg_info *db);
169 void free_type_attrs (ir_type *tp);
171 void free_class_entities (ir_type *clss);
172 void free_struct_entities (ir_type *strct);
173 void free_method_entities (ir_type *method);
174 void free_union_entities (ir_type *uni);
175 void free_array_entities (ir_type *array);
176 void free_enumeration_entities(ir_type *enumeration);
177 void free_pointer_entities (ir_type *pointer);
179 void free_array_automatic_entities(ir_type *array);
181 void free_class_attrs (ir_type *clss);
182 void free_struct_attrs (ir_type *strct);
183 void free_method_attrs (ir_type *method);
184 void free_union_attrs (ir_type *uni);
185 void free_array_attrs (ir_type *array);
186 void free_enumeration_attrs(ir_type *enumeration);
187 void free_pointer_attrs (ir_type *pointer);
189 void set_class_mode(ir_type *tp, ir_mode *mode);
190 void set_struct_mode(ir_type *tp, ir_mode *mode);
191 void set_pointer_mode(ir_type *tp, ir_mode *mode);
192 void set_primitive_mode(ir_type *tp, ir_mode *mode);
193 void set_enumeration_mode(ir_type *tp, ir_mode *mode);
195 void set_class_size_bits(ir_type *tp, int bits);
196 void set_struct_size_bits(ir_type *tp, int bits);
197 void set_union_size_bits(ir_type *tp, int bits);
198 void set_array_size_bits(ir_type *tp, int size);
199 void set_default_size_bits(ir_type *tp, int size);
202 * Initialize the type module.
204 * @param builtin_db debug info for built-in objects
205 * @param default_cc_mask default calling conventions for methods
207 void firm_init_type(dbg_info *builtin_db, unsigned default_cc_mask);
210 /* ------------------- *
212 * ------------------- */
214 extern unsigned long firm_type_visited;
216 static INLINE void _set_master_type_visited(unsigned long val) { firm_type_visited = val; }
217 static INLINE unsigned long _get_master_type_visited(void) { return firm_type_visited; }
218 static INLINE void _inc_master_type_visited(void) { ++firm_type_visited; }
221 _get_type_link(const ir_type *tp) {
222 assert(tp && tp->kind == k_type);
227 _set_type_link(ir_type *tp, void *l) {
228 assert(tp && tp->kind == k_type);
232 static INLINE const tp_op*
233 _get_type_tpop(const ir_type *tp) {
234 assert(tp && tp->kind == k_type);
239 _get_type_tpop_nameid(const ir_type *tp) {
240 assert(tp && tp->kind == k_type);
241 return get_tpop_ident(tp->type_op);
244 static INLINE tp_opcode
245 _get_type_tpop_code(const ir_type *tp) {
246 assert(tp && tp->kind == k_type);
247 return get_tpop_code(tp->type_op);
250 static INLINE ir_mode *
251 _get_type_mode(const ir_type *tp) {
252 assert(tp && tp->kind == k_type);
256 static INLINE ident *
257 _get_type_ident(const ir_type *tp) {
258 assert(tp && tp->kind == k_type);
263 _set_type_ident(ir_type *tp, ident* id) {
264 assert(tp && tp->kind == k_type);
269 _get_type_size_bits(const ir_type *tp) {
270 assert(tp && tp->kind == k_type);
275 _get_type_size_bytes(const ir_type *tp) {
276 int size = _get_type_size_bits(tp);
279 if ((size & 7) != 0) {
280 assert(0 && "cannot take byte size of this type");
286 static INLINE type_state
287 _get_type_state(const ir_type *tp) {
288 assert(tp && tp->kind == k_type);
289 return tp->flags & tf_layout_fixed ? layout_fixed : layout_undefined;
292 static INLINE unsigned long
293 _get_type_visited(const ir_type *tp) {
294 assert(tp && tp->kind == k_type);
299 _set_type_visited(ir_type *tp, unsigned long num) {
300 assert(tp && tp->kind == k_type);
305 _mark_type_visited(ir_type *tp) {
306 assert(tp && tp->kind == k_type);
307 assert(tp->visit < firm_type_visited);
308 tp->visit = firm_type_visited;
312 _type_visited(const ir_type *tp) {
313 assert(tp && tp->kind == k_type);
314 return tp->visit >= firm_type_visited;
318 _type_not_visited(const ir_type *tp) {
319 assert(tp && tp->kind == k_type);
320 return tp->visit < firm_type_visited;
324 _is_type(const void *thing) {
325 return (get_kind(thing) == k_type);
329 _is_class_type(const ir_type *clss) {
331 return (clss->type_op == type_class);
335 _get_class_n_members (const ir_type *clss) {
336 assert(clss && (clss->type_op == type_class));
337 return (ARR_LEN (clss->attr.ca.members));
340 static INLINE entity *
341 _get_class_member (const ir_type *clss, int pos) {
342 assert(clss && (clss->type_op == type_class));
343 assert(pos >= 0 && pos < _get_class_n_members(clss));
344 return clss->attr.ca.members[pos];
347 static INLINE unsigned
348 _get_class_vtable_size(const ir_type *clss) {
349 assert(clss && (clss->type_op == type_class));
350 return clss->attr.ca.vtable_size;
354 _set_class_vtable_size(ir_type *clss, unsigned vtable_size) {
355 assert(clss && (clss->type_op == type_class));
356 clss->attr.ca.vtable_size = vtable_size;
360 _is_class_final (const ir_type *clss) {
361 assert(clss && (clss->type_op == type_class));
362 return clss->attr.ca.final;
366 _set_class_final (ir_type *clss, int final) {
367 assert(clss && (clss->type_op == type_class));
368 clss->attr.ca.final = final;
372 _is_struct_type(const ir_type *strct) {
374 return (strct->type_op == type_struct);
378 _is_method_type(const ir_type *method) {
380 return (method->type_op == type_method);
384 _is_union_type(const ir_type *uni) {
386 return (uni->type_op == type_union);
390 _is_array_type(const ir_type *array) {
392 return (array->type_op == type_array);
396 _is_enumeration_type(const ir_type *enumeration) {
398 return (enumeration->type_op == type_enumeration);
402 _is_pointer_type(const ir_type *pointer) {
404 return (pointer->type_op == type_pointer);
407 /** Returns true if a type is a primitive type. */
409 _is_primitive_type(const ir_type *primitive) {
410 assert(primitive && primitive->kind == k_type);
411 return (primitive->type_op == type_primitive);
415 _is_atomic_type(const ir_type *tp) {
416 assert(tp && tp->kind == k_type);
417 return (_is_primitive_type(tp) || _is_pointer_type(tp) ||
418 _is_enumeration_type(tp));
422 _get_method_n_params(const ir_type *method) {
423 assert(method && (method->type_op == type_method));
424 return method->attr.ma.n_params;
428 _get_method_n_ress(const ir_type *method) {
429 assert(method && (method->type_op == type_method));
430 return method->attr.ma.n_res;
433 static INLINE unsigned
434 _get_method_additional_properties(const ir_type *method) {
435 assert(method && (method->type_op == type_method));
436 return method->attr.ma.additional_properties;
440 _set_method_additional_properties(ir_type *method, unsigned mask) {
441 assert(method && (method->type_op == type_method));
443 /* do not allow to set the mtp_property_inherited flag or
444 * the automatic inheritance of flags will not work */
445 method->attr.ma.additional_properties = mask & ~mtp_property_inherited;
449 _set_method_additional_property(ir_type *method, mtp_additional_property flag) {
450 assert(method && (method->type_op == type_method));
452 /* do not allow to set the mtp_property_inherited flag or
453 * the automatic inheritance of flags will not work */
454 method->attr.ma.additional_properties |= flag & ~mtp_property_inherited;
457 static INLINE unsigned
458 _get_method_calling_convention(const ir_type *method) {
459 assert(method && (method->type_op == type_method));
460 return method->attr.ma.irg_calling_conv;
464 _set_method_calling_convention(ir_type *method, unsigned cc_mask) {
465 assert(method && (method->type_op == type_method));
466 method->attr.ma.irg_calling_conv = cc_mask;
469 #define set_master_type_visited(val) _set_master_type_visited(val)
470 #define get_master_type_visited() _get_master_type_visited()
471 #define inc_master_type_visited() _inc_master_type_visited()
472 #define get_type_link(tp) _get_type_link(tp)
473 #define set_type_link(tp, l) _set_type_link(tp, l)
474 #define get_type_tpop(tp) _get_type_tpop(tp)
475 #define get_type_tpop_nameid(tp) _get_type_tpop_nameid(tp)
476 #define get_type_tpop_code(tp) _get_type_tpop_code(tp)
477 #define get_type_mode(tp) _get_type_mode(tp)
478 #define get_type_ident(tp) _get_type_ident(tp)
479 #define set_type_ident(tp, id) _set_type_ident(tp, id)
480 #define get_type_size_bits(tp) _get_type_size_bits(tp)
481 #define get_type_size_bytes(tp) _get_type_size_bytes(tp)
482 #define get_type_state(tp) _get_type_state(tp)
483 #define get_type_visited(tp) _get_type_visited(tp)
484 #define set_type_visited(tp, num) _set_type_visited(tp, num)
485 #define mark_type_visited(tp) _mark_type_visited(tp)
486 #define type_visited(tp) _type_visited(tp)
487 #define type_not_visited(tp) _type_not_visited(tp)
488 #define is_type(thing) _is_type(thing)
489 #define is_Class_type(clss) _is_class_type(clss)
490 #define get_class_n_members(clss) _get_class_n_members(clss)
491 #define get_class_member(clss, pos) _get_class_member(clss, pos)
492 #define get_class_vtable_size(clss) _get_class_vtable_size(clss)
493 #define set_class_vtable_size(clss, size) _set_class_vtable_size(clss, size)
494 #define is_class_final(clss) _is_class_final(clss)
495 #define set_class_final(clss, final) _set_class_final(clss, final)
496 #define is_Struct_type(strct) _is_struct_type(strct)
497 #define is_Method_type(method) _is_method_type(method)
498 #define is_Union_type(uni) _is_union_type(uni)
499 #define is_Array_type(array) _is_array_type(array)
500 #define is_Enumeration_type(enumeration) _is_enumeration_type(enumeration)
501 #define is_Pointer_type(pointer) _is_pointer_type(pointer)
502 #define is_Primitive_type(primitive) _is_primitive_type(primitive)
503 #define is_atomic_type(tp) _is_atomic_type(tp)
504 #define get_method_n_params(method) _get_method_n_params(method)
505 #define get_method_n_ress(method) _get_method_n_ress(method)
506 #define get_method_additional_properties(method) _get_method_additional_properties(method)
507 #define set_method_additional_properties(method, mask) _set_method_additional_properties(method, mask)
508 #define set_method_additional_property(method, flag) _set_method_additional_property(method, flag)
509 #define get_method_calling_convention(method) _get_method_calling_convention(method)
510 #define set_method_calling_convention(method, cc_mask) _set_method_calling_convention(method, cc_mask)
512 #endif /* _FIRM_TR_TYPE_T_H_ */