2 * Copyright (C) 1995-2008 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 all program known entities -- private header.
23 * @author Martin Trapp, Christian Schaefer, Goetz Lindenmaier, Michael Beck
26 #ifndef FIRM_TR_ENTITY_T_H
27 #define FIRM_TR_ENTITY_T_H
31 #include "firm_common_t.h"
36 #include "pseudo_irg.h"
38 typedef struct ir_initializer_base_t {
39 ir_initializer_kind_t kind;
40 } ir_initializer_base_t;
43 * An compound initializer.
45 typedef struct ir_initializer_compound_t {
46 ir_initializer_base_t base;
47 unsigned n_initializers;
48 ir_initializer_t *initializers[1];
49 } ir_initializer_compound_t;
52 * An initializer containing an ir_node,
54 typedef struct ir_initializer_const_t {
55 ir_initializer_base_t base;
57 } ir_initializer_const_t ;
60 * An initializer containing a tarval.
62 typedef struct ir_initializer_tarval_t {
63 ir_initializer_base_t base;
65 } ir_initializer_tarval_t ;
67 union ir_initializer_t {
68 ir_initializer_kind_t kind;
69 ir_initializer_base_t base;
70 ir_initializer_compound_t compound;
71 ir_initializer_const_t consti;
72 ir_initializer_tarval_t tarval;
75 /** A path in a compound graph. */
76 struct compound_graph_path {
77 firm_kind kind; /**< The dynamic type tag for compound graph path. */
78 ir_type *tp; /**< The type this path belongs to. */
79 int len; /**< The length of the path. */
81 int index; /**< Array index. To compute position of array elements */
82 ir_entity *node; /**< The accessed entity. */
83 } list[1]; /**< List of entity/index tuple of length len to express the
87 /** The attributes for atomic entities. */
88 typedef struct atomic_ent_attr {
89 ir_node *value; /**< value if entity is not of variability uninitialized.
90 Only for atomic entities. */
93 /** The attributes for compound entities. */
94 typedef struct compound_ent_attr {
95 ir_node **values; /**< constant values of compound entities. Only available if
96 variability not uninitialized. Must be set for variability constant. */
97 compound_graph_path **val_paths;
98 /**< paths corresponding to constant values. Only available if
99 variability not uninitialized. Must be set for variability constant. */
102 /** A reserved value for "not yet set". */
103 #define VTABLE_NUM_NOT_SET ((unsigned)(-1))
105 /** The attributes for methods. */
106 typedef struct method_ent_attr {
107 ir_graph *irg; /**< The corresponding irg if known.
108 The ir_graph constructor automatically sets this field. */
109 unsigned irg_add_properties; /**< Additional graph properties can be
110 stored in a entity if no irg is available. */
112 unsigned vtable_number; /**< For a dynamically called method, the number assigned
113 in the virtual function table. */
115 ptr_access_kind *param_access; /**< the parameter access */
116 unsigned *param_weight; /**< The weight of method's parameters. Parameters
117 with a high weight are good candidates for procedure cloning. */
122 * An abstract data type to represent program entities.
127 firm_kind kind; /**< The dynamic type tag for entity. */
128 ident *name; /**< The name of this entity. */
129 ident *ld_name; /**< Unique name of this entity, i.e., the mangled
130 name. If the field is read before written a default
131 mangling is applies. The name of the owner is prepended
132 to the name of the entity, separated by a underscore.
133 E.g., for a class `A' with field `a' this
134 is the ident for `A_a'. */
135 ir_type *type; /**< The type of this entity, e.g., a method type, a
136 basic type of the language or a class itself. */
137 ir_type *owner; /**< The compound type (e.g. class type) this entity belongs to. */
138 unsigned allocation:3; /**< Distinguishes static and dynamically allocated
139 entities and some further cases. */
140 unsigned visibility:3; /**< Specifies visibility to external program fragments. */
141 unsigned variability:3; /**< Specifies variability of entities content. */
142 unsigned volatility:1; /**< Specifies volatility of entities content. */
143 unsigned aligned:1; /**< Specifies alignment of entities content. */
144 unsigned stickyness:2; /**< Specifies whether this entity is sticky. */
145 unsigned peculiarity:3; /**< The peculiarity of this entity. */
146 unsigned usage:4; /**< flag indicating usage types of this entity, see ir_entity_usage. */
147 unsigned final:1; /**< If set, this entity cannot be overridden. */
148 unsigned compiler_gen:1; /**< If set, this entity was compiler generated. */
149 unsigned backend_marked:1; /**< If set, this entity was marked by the backend for emission. */
150 unsigned has_initializer:1; /**< if set, this entity is initialized by new style initializers. */
151 int offset; /**< Offset in bytes for this entity. Fixed when layout
152 of owner is determined. */
153 unsigned alignment; /**< entity alignment in bytes */
154 unsigned char offset_bit_remainder;
155 /**< If the entity is a bit field, this is the offset of
156 the start of the bit field within the byte specified
158 ir_visited_t visit; /**< visited counter for walks of the type information. */
159 struct dbg_info *dbi; /**< A pointer to information for debug support. */
160 void *link; /**< To store some intermediate information. */
161 ir_type *repr_class; /**< If this entity represents a class info, the associated class. */
163 /* ------------- fields for entities owned by a class type ---------------*/
165 ir_entity **overwrites; /**< A list of entities this entity overwrites. */
166 ir_entity **overwrittenby; /**< A list of entities that overwrite this entity. */
168 /* ------------- fields for atomic entities --------------- */
169 ir_node *value; /**< value if entity is not of variability uninitialized.
170 Only for atomic entities. */
172 /* ------------- fields for compound entities -------------- */
173 compound_ent_attr cmpd_attr;
174 /* ------------- fields for method entities ---------------- */
175 method_ent_attr mtd_attr;
176 /* entity initializer */
177 ir_initializer_t *initializer;
178 } attr; /**< type specific attributes */
180 /* ------------- fields for analyses ---------------*/
183 long nr; /**< A unique node number for each node to make output readable. */
184 # endif /* DEBUG_libfirm */
187 /** Initialize the entity module. */
188 void firm_init_entity(void);
191 /* ----------------------- inline functions ------------------------ */
193 _is_entity(const void *thing) {
194 return get_kind(thing) == k_entity;
197 static inline const char *
198 _get_entity_name(const ir_entity *ent) {
199 assert(ent && ent->kind == k_entity);
200 return get_id_str(get_entity_ident(ent));
203 static inline ident *
204 _get_entity_ident(const ir_entity *ent) {
205 assert(ent && ent->kind == k_entity);
210 _set_entity_ident(ir_entity *ent, ident *id) {
211 assert(ent && ent->kind == k_entity);
215 static inline ir_type *
216 _get_entity_owner(ir_entity *ent) {
217 assert(ent && ent->kind == k_entity);
218 return ent->owner = skip_tid(ent->owner);
221 static inline ident *
222 _get_entity_ld_ident(ir_entity *ent)
224 assert(ent && ent->kind == k_entity);
225 if (ent->ld_name == NULL)
226 ent->ld_name = id_mangle_entity(ent);
231 _set_entity_ld_ident(ir_entity *ent, ident *ld_ident) {
232 assert(ent && ent->kind == k_entity);
233 ent->ld_name = ld_ident;
236 static inline const char *
237 _get_entity_ld_name(ir_entity *ent) {
238 assert(ent && ent->kind == k_entity);
239 return get_id_str(get_entity_ld_ident(ent));
242 static inline ir_type *
243 _get_entity_type(ir_entity *ent) {
244 assert(ent && ent->kind == k_entity);
245 return ent->type = skip_tid(ent->type);
249 _set_entity_type(ir_entity *ent, ir_type *type) {
250 assert(ent && ent->kind == k_entity);
254 static inline ir_allocation
255 _get_entity_allocation(const ir_entity *ent) {
256 assert(ent && ent->kind == k_entity);
257 return ent->allocation;
261 _set_entity_allocation(ir_entity *ent, ir_allocation al) {
262 assert(ent && ent->kind == k_entity);
263 ent->allocation = al;
266 static inline ir_visibility
267 _get_entity_visibility(const ir_entity *ent) {
268 assert(ent && ent->kind == k_entity);
269 return ent->visibility;
272 static inline ir_variability
273 _get_entity_variability(const ir_entity *ent) {
274 assert(ent && ent->kind == k_entity);
275 return ent->variability;
278 static inline ir_volatility
279 _get_entity_volatility(const ir_entity *ent) {
280 assert(ent && ent->kind == k_entity);
281 return ent->volatility;
285 _set_entity_volatility(ir_entity *ent, ir_volatility vol) {
286 assert(ent && ent->kind == k_entity);
287 ent->volatility = vol;
290 static inline unsigned
291 _get_entity_alignment(const ir_entity *ent) {
292 assert(ent && ent->kind == k_entity);
293 return ent->alignment;
297 _set_entity_alignment(ir_entity *ent, unsigned alignment) {
298 assert(ent && ent->kind == k_entity);
299 ent->alignment = alignment;
302 static inline ir_align
303 _get_entity_aligned(const ir_entity *ent) {
304 assert(ent && ent->kind == k_entity);
309 _set_entity_aligned(ir_entity *ent, ir_align a) {
310 assert(ent && ent->kind == k_entity);
314 static inline ir_peculiarity
315 _get_entity_peculiarity(const ir_entity *ent) {
316 assert(ent && ent->kind == k_entity);
317 return ent->peculiarity;
321 * @todo Why peculiarity only for methods?
322 * Good question. Originally, there were only description and
323 * existent. The thought was, what sense does it make to
324 * describe a field? With inherited the situation changed. So
325 * I removed the assertion. GL, 28.2.05
328 _set_entity_peculiarity(ir_entity *ent, ir_peculiarity pec) {
329 assert(ent && ent->kind == k_entity);
330 /* @@@ why peculiarity only for methods? */
331 //assert(is_Method_type(ent->type));
333 ent->peculiarity = pec;
336 static inline ir_stickyness
337 _get_entity_stickyness(const ir_entity *ent) {
338 assert(ent && ent->kind == k_entity);
339 return ent->stickyness;
343 _set_entity_stickyness(ir_entity *ent, ir_stickyness stickyness) {
344 assert(ent && ent->kind == k_entity);
345 ent->stickyness = stickyness;
349 _is_entity_final(const ir_entity *ent) {
350 assert(ent && ent->kind == k_entity);
351 return (int)ent->final;
355 _set_entity_final(ir_entity *ent, int final) {
356 assert(ent && ent->kind == k_entity);
357 ent->final = final ? 1 : 0;
361 _is_entity_compiler_generated(const ir_entity *ent) {
362 assert(ent && ent->kind == k_entity);
363 return ent->compiler_gen;
367 _set_entity_compiler_generated(ir_entity *ent, int flag) {
368 assert(ent && ent->kind == k_entity);
369 ent->compiler_gen = flag ? 1 : 0;
373 _is_entity_backend_marked(const ir_entity *ent) {
374 assert(ent && ent->kind == k_entity);
375 return ent->backend_marked;
379 _set_entity_backend_marked(ir_entity *ent, int flag) {
380 assert(ent && ent->kind == k_entity);
381 ent->backend_marked = flag ? 1 : 0;
384 static inline ir_entity_usage
385 _get_entity_usage(const ir_entity *ent) {
386 assert(ent && ent->kind == k_entity);
391 _set_entity_usage(ir_entity *ent, ir_entity_usage state) {
392 assert(ent && ent->kind == k_entity);
397 _get_entity_offset(const ir_entity *ent) {
398 assert(ent && ent->kind == k_entity);
403 _set_entity_offset(ir_entity *ent, int offset) {
404 assert(ent && ent->kind == k_entity);
405 ent->offset = offset;
408 static inline unsigned char
409 _get_entity_offset_bits_remainder(const ir_entity *ent) {
410 assert(ent && ent->kind == k_entity);
411 return ent->offset_bit_remainder;
415 _set_entity_offset_bits_remainder(ir_entity *ent, unsigned char offset) {
416 assert(ent && ent->kind == k_entity);
417 ent->offset_bit_remainder = offset;
421 _get_entity_link(const ir_entity *ent) {
422 assert(ent && ent->kind == k_entity);
427 _set_entity_link(ir_entity *ent, void *l) {
428 assert(ent && ent->kind == k_entity);
432 static inline ir_graph *
433 _get_entity_irg(const ir_entity *ent) {
435 assert(ent && ent->kind == k_entity);
436 if (!is_Method_type(ent->type) || ent == unknown_entity) {
440 irg = ent->attr.mtd_attr.irg;
441 if (irg != NULL && !get_visit_pseudo_irgs() && is_pseudo_ir_graph(irg))
446 static inline ir_visited_t
447 _get_entity_visited(ir_entity *ent) {
448 assert(ent && ent->kind == k_entity);
453 _set_entity_visited(ir_entity *ent, ir_visited_t num) {
454 assert(ent && ent->kind == k_entity);
459 _mark_entity_visited(ir_entity *ent) {
460 assert(ent && ent->kind == k_entity);
461 ent->visit = firm_type_visited;
465 _entity_visited(ir_entity *ent) {
466 return _get_entity_visited(ent) >= firm_type_visited;
470 _entity_not_visited(ir_entity *ent) {
471 return _get_entity_visited(ent) < firm_type_visited;
474 static inline ir_type *
475 _get_entity_repr_class(const ir_entity *ent) {
476 assert(ent && ent->kind == k_entity);
477 return ent->repr_class;
480 static inline dbg_info *
481 _get_entity_dbg_info(const ir_entity *ent) {
486 _set_entity_dbg_info(ir_entity *ent, dbg_info *db) {
491 #define is_entity(thing) _is_entity(thing)
492 #define get_entity_name(ent) _get_entity_name(ent)
493 #define get_entity_ident(ent) _get_entity_ident(ent)
494 #define set_entity_ident(ent, id) _set_entity_ident(ent, id)
495 #define get_entity_owner(ent) _get_entity_owner(ent)
496 #define get_entity_ld_ident(ent) _get_entity_ld_ident(ent)
497 #define set_entity_ld_ident(ent, ld_ident) _set_entity_ld_ident(ent, ld_ident)
498 #define get_entity_ld_name(ent) _get_entity_ld_name(ent)
499 #define get_entity_type(ent) _get_entity_type(ent)
500 #define set_entity_type(ent, type) _set_entity_type(ent, type)
501 #define get_entity_allocation(ent) _get_entity_allocation(ent)
502 #define set_entity_allocation(ent, al) _set_entity_allocation(ent, al)
503 #define get_entity_visibility(ent) _get_entity_visibility(ent)
504 #define get_entity_variability(ent) _get_entity_variability(ent)
505 #define get_entity_volatility(ent) _get_entity_volatility(ent)
506 #define set_entity_volatility(ent, vol) _set_entity_volatility(ent, vol)
507 #define set_entity_alignment(ent, alignment) _set_entity_alignment(ent, alignment)
508 #define get_entity_alignment(ent) _get_entity_alignment(ent)
509 #define get_entity_align(ent) _get_entity_align(ent)
510 #define set_entity_align(ent, a) _set_entity_align(ent, a)
511 #define get_entity_peculiarity(ent) _get_entity_peculiarity(ent)
512 #define set_entity_peculiarity(ent, pec) _set_entity_peculiarity(ent, pec)
513 #define get_entity_stickyness(ent) _get_entity_stickyness(ent)
514 #define set_entity_stickyness(ent, stickyness) _set_entity_stickyness(ent, stickyness)
515 #define is_entity_final(ent) _is_entity_final(ent)
516 #define set_entity_final(ent, final) _set_entity_final(ent, final)
517 #define is_entity_compiler_generated(ent) _is_entity_compiler_generated(ent)
518 #define set_entity_compiler_generated(ent, flag) _set_entity_compiler_generated(ent, flag)
519 #define is_entity_backend_marked(ent) _is_entity_backend_marked(ent)
520 #define set_entity_backend_marked(ent, flag) _set_entity_backend_marked(ent, flag)
521 #define get_entity_usage(ent) _get_entity_usage(ent)
522 #define set_entity_usage(ent, flags) _set_entity_usage(ent, flags)
523 #define get_entity_offset(ent) _get_entity_offset(ent)
524 #define set_entity_offset(ent, offset) _set_entity_offset(ent, offset)
525 #define get_entity_offset_bits_remainder(ent) _get_entity_offset_bits_remainder(ent)
526 #define set_entity_offset_bits_remainder(ent, o) _set_entity_offset_bits_remainder(ent, o)
527 #define get_entity_link(ent) _get_entity_link(ent)
528 #define set_entity_link(ent, l) _set_entity_link(ent, l)
529 #define get_entity_irg(ent) _get_entity_irg(ent)
530 #define get_entity_visited(ent) _get_entity_visited(ent)
531 #define set_entity_visited(ent, num) _set_entity_visited(ent, num)
532 #define mark_entity_visited(ent) _mark_entity_visited(ent)
533 #define entity_visited(ent) _entity_visited(ent)
534 #define entity_not_visited(ent) _entity_not_visited(ent)
535 #define get_entity_repr_class(ent) _get_entity_repr_class(ent)
536 #define get_entity_dbg_info(ent) _get_entity_dbg_info(ent)
537 #define set_entity_dbg_info(ent, db) _set_entity_dbg_info(ent, db)
540 #endif /* FIRM_TR_ENTITY_T_H */