1 /* Copyright (C) 1998 - 2000 by Universitaet Karlsruhe
2 ** All rights reserved.
4 ** Authors: Martin Trapp, Christian Schaefer
18 # include "entity_t.h"
20 # include "typegmod_t.h"
22 /* All this is needed to build the constant node for methods: */
26 /*******************************************************************/
28 /*******************************************************************/
35 /*******************************************************************/
37 /*******************************************************************/
39 INLINE type *get_entity_owner (entity *ent);
41 INLINE void insert_entity_in_owner (entity *ent) {
42 type *owner = ent->owner;
43 switch (get_type_tpop_code(owner)) {
45 add_class_member (owner, ent);
48 add_struct_member (owner, ent);
51 add_union_member (owner, ent);
54 set_array_element_entity(owner, ent);
61 new_entity (type *owner, ident *name, type *type)
66 res = (entity *) malloc (sizeof (entity));
68 assert_legal_owner_of_ent(owner);
72 if (get_type_tpop(type) == type_method)
73 res->allocation = static_allocated;
75 res->allocation = automatic_allocated;
76 res->visibility = local;
78 if (is_method_type(type)) {
79 res->variability = constant;
80 rem = current_ir_graph;
81 current_ir_graph = get_const_code_irg();
82 res->value = new_Const(mode_p, tarval_p_from_entity(res));
83 current_ir_graph = rem;
85 res->variability = uninitialized;
87 res->peculiarity = existent;
88 res->volatility = non_volatile;
90 res->overwrites = NEW_ARR_F(entity *, 1);
91 res->overwrittenby = NEW_ARR_F(entity *, 1);
97 /* Remember entity in it's owner. */
98 insert_entity_in_owner (res);
102 new_d_entity (type *owner, ident *name, type *type, dbg_info *db) {
103 entity *res = new_entity(owner, name, type);
104 set_entity_dbg_info(res, db);
107 INLINE void free_entity_attrs(entity *ent) {
109 if (get_type_tpop(get_entity_owner(ent)) == type_class) {
110 DEL_ARR_F(ent->overwrites);
111 DEL_ARR_F(ent->overwrittenby);
116 copy_entity_own (entity *old, type *new_owner) {
119 assert_legal_owner_of_ent(new_owner);
120 if (old->owner == new_owner) return old;
121 new = (entity *) malloc (sizeof (entity));
122 memcpy (new, old, sizeof (entity));
123 new->owner = new_owner;
124 if ((get_type_tpop(get_entity_owner(old)) == type_class) &&
125 (get_type_tpop(new_owner) == type_class)) {
126 new->overwrites = DUP_ARR_F(entity *, old->overwrites);
127 new->overwrittenby = DUP_ARR_F(entity *, old->overwrittenby);
128 } else if ((get_type_tpop(get_entity_owner(old)) != type_class) &&
129 (get_type_tpop(new_owner) == type_class)) {
130 new->overwrites = NEW_ARR_F(entity *, 1);
131 new->overwrittenby = NEW_ARR_F(entity *, 1);
134 insert_entity_in_owner (new);
140 copy_entity_name (entity *old, ident *new_name) {
143 if (old->name == new_name) return old;
144 new = (entity *) malloc (sizeof (entity));
145 memcpy (new, old, sizeof (entity));
146 new->name = new_name;
148 new->overwrites = DUP_ARR_F(entity *, old->overwrites);
149 new->overwrittenby = DUP_ARR_F(entity *, old->overwrittenby);
151 insert_entity_in_owner (new);
157 free_entity (entity *ent) {
158 free_entity_attrs(ent);
163 get_entity_name (entity *ent) {
165 return id_to_str(get_entity_ident(ent));
169 get_entity_ident (entity *ent) {
175 void set_entitye_ld_name (entity *, char *ld_name);
176 void set_entity_ld_ident (entity *, ident *ld_ident);
180 get_entity_owner (entity *ent) {
181 return ent->owner = skip_tid(ent->owner);
185 set_entity_owner (entity *ent, type *owner) {
186 assert_legal_owner_of_ent(owner);
190 INLINE void /* should this go into type.c? */
191 assert_legal_owner_of_ent(type *owner) {
192 assert (get_type_tpop_code(owner) == tpo_class ||
193 get_type_tpop_code(owner) == tpo_union ||
194 get_type_tpop_code(owner) == tpo_struct ||
195 get_type_tpop_code(owner) == tpo_array); /* Yes, array has an entity
196 -- to select fields! */
200 get_entity_ld_ident (entity *ent)
202 if (ent->ld_name == NULL)
203 ent->ld_name = mangle_entity (ent);
208 set_entity_ld_ident (entity *ent, ident *ld_ident) {
209 ent->ld_name = ld_ident;
213 get_entity_ld_name (entity *ent) {
214 return id_to_str(get_entity_ld_ident(ent));
218 char *get_entity_ld_name (entity *);
219 void set_entity_ld_name (entity *, char *ld_name);
223 get_entity_type (entity *ent) {
224 return ent->type = skip_tid(ent->type);
228 set_entity_type (entity *ent, type *type) {
233 INLINE ent_allocation
234 get_entity_allocation (entity *ent) {
235 return ent->allocation;
239 set_entity_allocation (entity *ent, ent_allocation al) {
240 ent->allocation = al;
244 INLINE ent_visibility
245 get_entity_visibility (entity *ent) {
246 return ent->visibility;
250 set_entity_visibility (entity *ent, ent_visibility vis) {
251 if (vis != local) assert(ent->allocation == static_allocated);
252 ent->visibility = vis;
255 INLINE ent_variability
256 get_entity_variability (entity *ent) {
257 return ent->variability;
261 set_entity_variability (entity *ent, ent_variability var){
262 if (var == part_constant)
263 assert(is_class_type(ent->type) || is_struct_type(ent->type));
264 if ((is_compound_type(ent->type)) &&
265 (ent->variability == uninitialized) && (var != uninitialized)) {
266 /* Allocate datastructures for constant values */
267 ent->values = NEW_ARR_F(ir_node *, 1);
268 ent->val_ents = NEW_ARR_F(entity *, 1);
270 if ((is_compound_type(ent->type)) &&
271 (var == uninitialized) && (ent->variability != uninitialized)) {
272 /* Free datastructures for constant values */
273 DEL_ARR_F(ent->values);
274 DEL_ARR_F(ent->val_ents);
276 ent->variability = var;
280 INLINE ent_volatility
281 get_entity_volatility (entity *ent) {
283 return ent->volatility;
287 set_entity_volatility (entity *ent, ent_volatility vol) {
289 ent->volatility = vol;
293 get_entity_peculiarity (entity *ent) {
295 return ent->peculiarity;
299 set_entity_peculiarity (entity *ent, peculiarity pec) {
301 /* @@@ why peculiarity only for methods? */
302 assert (is_method_type(ent->type));
303 ent->peculiarity = pec;
306 /* Set has no effect for entities of type method. */
308 get_atomic_ent_value(entity *ent) {
309 assert(ent); assert(is_atomic_entity(ent));
310 assert((ent->variability != uninitialized));
315 set_atomic_ent_value(entity *ent, ir_node *val) {
316 assert(ent && is_atomic_entity(ent) && (ent->variability != uninitialized));
317 if (is_method_type(ent->type)) return;
322 ir_node *copy_const_value(ir_node *n) {
327 switch(get_irn_opcode(n)) {
329 nn = new_Const(m, get_Const_tarval(n)); break;
331 nn = new_SymConst(get_SymConst_type_or_id(n), get_SymConst_kind(n)); break;
333 nn = new_Add(copy_const_value(get_Add_left(n)), copy_const_value(get_Add_right(n)), m); break;
335 assert(0 && "opdope invalid or not implemented"); break;
340 /* A value of a compound entity is a pair of value and the corresponding member of
343 add_compound_ent_value(entity *ent, ir_node *val, entity *member) {
344 assert(ent && is_compound_entity(ent) && (ent->variability != uninitialized));
345 ARR_APP1 (ir_node *, ent->values, val);
346 ARR_APP1 (entity *, ent->val_ents, member);
349 /* Copies the firm subgraph referenced by val to const_code_irg and adds
350 the node as constant initialization to ent.
351 The subgraph may not contain control flow operations.
353 copy_and_add_compound_ent_value(entity *ent, ir_node *val, entity *member) {
354 ir_graph *rem = current_ir_graph;
356 assert(get_entity_variability(ent) != uninitialized);
357 current_ir_graph = get_const_code_irg();
359 val = copy_const_value(val);
360 add_compound_ent_value(ent, val, member);
361 current_ir_graph = rem;
365 get_compound_ent_n_values(entity *ent) {
366 assert(ent && is_compound_entity(ent) && (ent->variability != uninitialized));
367 return (ARR_LEN (ent->values))-1;
371 get_compound_ent_value(entity *ent, int pos) {
372 assert(ent && is_compound_entity(ent) && (ent->variability != uninitialized));
373 return ent->values[pos+1];
376 /* Copies the value i of the entity to current_block in current_ir_graph.
378 copy_compound_ent_value(entity *ent, int pos) {
379 assert(ent && is_compound_entity(ent) && (ent->variability != uninitialized));
380 return copy_const_value(ent->values[pos+1]);
384 get_compound_ent_value_member(entity *ent, int pos) {
385 assert(ent && is_compound_entity(ent) && (ent->variability != uninitialized));
386 return ent->val_ents[pos+1];
390 set_compound_ent_value(entity *ent, ir_node *val, entity *member, int pos) {
391 assert(ent && is_compound_entity(ent) && (ent->variability != uninitialized));
392 ent->values[pos+1] = val;
393 ent->val_ents[pos+1] = member;
397 remove_compound_ent_value(entity *ent, entity *value_ent) {
399 assert(ent && is_compound_entity(ent) && (ent->variability != uninitialized));
400 for (i = 1; i < (ARR_LEN (ent->val_ents)); i++) {
401 if (ent->val_ents[i] == value_ent) {
402 for(; i < (ARR_LEN (ent->val_ents))-1; i++) {
403 ent->val_ents[i] = ent->val_ents[i+1];
404 ent->values[i] = ent->values[i+1];
406 ARR_SETLEN(entity*, ent->val_ents, ARR_LEN(ent->val_ents) - 1);
407 ARR_SETLEN(ir_node*, ent->values, ARR_LEN(ent->values) - 1);
414 set_array_entity_values(entity *ent, tarval **values, int num_vals) {
416 ir_graph *rem = current_ir_graph;
417 type *arrtp = get_entity_type(ent);
420 assert(is_array_type(arrtp));
421 assert(get_array_n_dimensions(arrtp) == 1);
422 /* One bound is sufficient, the nunmber of constant fields makes the
424 assert(get_array_lower_bound (arrtp, 0) || get_array_upper_bound (arrtp, 0));
425 assert(get_entity_variability(ent) != uninitialized);
426 current_ir_graph = get_const_code_irg();
428 for (i = 0; i < num_vals; i++) {
429 val = new_Const(get_tv_mode (values[i]), values[i]);
430 add_compound_ent_value(ent, val, get_array_element_entity(arrtp));
432 current_ir_graph = rem;
436 get_entity_offset (entity *ent) {
441 set_entity_offset (entity *ent, int offset) {
442 ent->offset = offset;
446 add_entity_overwrites (entity *ent, entity *overwritten) {
448 assert(is_class_type(get_entity_owner(ent)));
449 ARR_APP1 (entity *, ent->overwrites, overwritten);
450 ARR_APP1 (entity *, overwritten->overwrittenby, ent);
454 get_entity_n_overwrites (entity *ent) {
456 assert(is_class_type(get_entity_owner(ent)));
457 return (ARR_LEN (ent->overwrites))-1;
461 get_entity_overwrites (entity *ent, int pos) {
463 assert(is_class_type(get_entity_owner(ent)));
464 assert(pos < get_entity_n_overwrites(ent));
465 return ent->overwrites[pos+1];
469 set_entity_overwrites (entity *ent, int pos, entity *overwritten) {
471 assert(is_class_type(get_entity_owner(ent)));
472 assert(pos < get_entity_n_overwrites(ent));
473 ent->overwrites[pos+1] = overwritten;
477 add_entity_overwrittenby (entity *ent, entity *overwrites) {
479 assert(is_class_type(get_entity_owner(ent)));
480 add_entity_overwrites(overwrites, ent);
484 get_entity_n_overwrittenby (entity *ent) {
486 assert(is_class_type(get_entity_owner(ent)));
487 return (ARR_LEN (ent->overwrittenby))-1;
491 get_entity_overwrittenby (entity *ent, int pos) {
493 assert(is_class_type(get_entity_owner(ent)));
494 assert(pos < get_entity_n_overwrittenby(ent));
495 return ent->overwrittenby[pos+1];
499 set_entity_overwrittenby (entity *ent, int pos, entity *overwrites) {
501 assert(is_class_type(get_entity_owner(ent)));
502 assert(pos < get_entity_n_overwrittenby(ent));
503 ent->overwrittenby[pos+1] = overwrites;
506 /* A link to store intermediate information */
508 get_entity_link(entity *ent) {
514 set_entity_link(entity *ent, void *l) {
520 get_entity_irg(entity *ent) {
522 assert (is_method_type(ent->type));
527 set_entity_irg(entity *ent, ir_graph *irg) {
528 assert (ent && ent->type);
529 /* Wie kann man die Referenz auf einen IRG löschen, z.B. wenn die
530 * Methode selbst nicht mehr aufgerufen werden kann, die Entität
531 * aber erhalten bleiben soll. */
533 assert (is_method_type(ent->type));
534 assert (ent->peculiarity == existent);
538 int is_atomic_entity(entity *ent) {
539 type* t = get_entity_type(ent);
540 return (is_primitive_type(t) || is_pointer_type(t) ||
541 is_enumeration_type(t) || is_method_type(t));
544 int is_compound_entity(entity *ent) {
545 type* t = get_entity_type(ent);
546 return (is_class_type(t) || is_struct_type(t) ||
547 is_array_type(t) || is_union_type(t));
550 bool equal_entity(entity *ent1, entity *ent2) {
555 unsigned long get_entity_visited(entity *ent) {
559 void set_entity_visited(entity *ent, unsigned long num) {
563 /* Sets visited field in entity to entity_visited. */
564 void mark_entity_visited(entity *ent) {
566 ent->visit = type_visited;