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 INLINE void free_entity_attrs(entity *ent) {
104 if (get_type_tpop(get_entity_owner(ent)) == type_class) {
105 DEL_ARR_F(ent->overwrites);
106 DEL_ARR_F(ent->overwrittenby);
111 copy_entity_own (entity *old, type *new_owner) {
114 assert_legal_owner_of_ent(new_owner);
115 if (old->owner == new_owner) return old;
116 new = (entity *) malloc (sizeof (entity));
117 memcpy (new, old, sizeof (entity));
118 new->owner = new_owner;
119 if ((get_type_tpop(get_entity_owner(old)) == type_class) &&
120 (get_type_tpop(new_owner) == type_class)) {
121 new->overwrites = DUP_ARR_F(entity *, old->overwrites);
122 new->overwrittenby = DUP_ARR_F(entity *, old->overwrittenby);
123 } else if ((get_type_tpop(get_entity_owner(old)) != type_class) &&
124 (get_type_tpop(new_owner) == type_class)) {
125 new->overwrites = NEW_ARR_F(entity *, 1);
126 new->overwrittenby = NEW_ARR_F(entity *, 1);
129 insert_entity_in_owner (new);
135 copy_entity_name (entity *old, ident *new_name) {
138 if (old->name == new_name) return old;
139 new = (entity *) malloc (sizeof (entity));
140 memcpy (new, old, sizeof (entity));
141 new->name = new_name;
143 new->overwrites = DUP_ARR_F(entity *, old->overwrites);
144 new->overwrittenby = DUP_ARR_F(entity *, old->overwrittenby);
146 insert_entity_in_owner (new);
152 free_entity (entity *ent) {
153 free_entity_attrs(ent);
158 get_entity_name (entity *ent) {
160 return id_to_str(get_entity_ident(ent));
164 get_entity_ident (entity *ent) {
170 void set_entitye_ld_name (entity *, char *ld_name);
171 void set_entity_ld_ident (entity *, ident *ld_ident);
175 get_entity_owner (entity *ent) {
176 return ent->owner = skip_tid(ent->owner);
180 set_entity_owner (entity *ent, type *owner) {
181 assert_legal_owner_of_ent(owner);
185 INLINE void /* should this go into type.c? */
186 assert_legal_owner_of_ent(type *owner) {
187 assert (get_type_tpop_code(owner) == tpo_class ||
188 get_type_tpop_code(owner) == tpo_union ||
189 get_type_tpop_code(owner) == tpo_struct ||
190 get_type_tpop_code(owner) == tpo_array); /* Yes, array has an entity
191 -- to select fields! */
195 get_entity_ld_ident (entity *ent)
197 if (ent->ld_name == NULL)
198 ent->ld_name = mangle_entity (ent);
203 set_entity_ld_ident (entity *ent, ident *ld_ident) {
204 ent->ld_name = ld_ident;
208 get_entity_ld_name (entity *ent) {
209 return id_to_str(get_entity_ld_ident(ent));
213 char *get_entity_ld_name (entity *);
214 void set_entity_ld_name (entity *, char *ld_name);
218 get_entity_type (entity *ent) {
219 return ent->type = skip_tid(ent->type);
223 set_entity_type (entity *ent, type *type) {
228 INLINE ent_allocation
229 get_entity_allocation (entity *ent) {
230 return ent->allocation;
234 set_entity_allocation (entity *ent, ent_allocation al) {
235 ent->allocation = al;
239 INLINE ent_visibility
240 get_entity_visibility (entity *ent) {
241 return ent->visibility;
245 set_entity_visibility (entity *ent, ent_visibility vis) {
246 if (vis != local) assert(ent->allocation == static_allocated);
247 ent->visibility = vis;
250 INLINE ent_variability
251 get_entity_variability (entity *ent) {
252 return ent->variability;
256 set_entity_variability (entity *ent, ent_variability var){
257 if (var == part_constant)
258 assert(is_class_type(ent->type) || is_struct_type(ent->type));
259 if ((is_compound_type(ent->type)) &&
260 (ent->variability == uninitialized) && (var != uninitialized)) {
261 /* Allocate datastructures for constant values */
262 ent->values = NEW_ARR_F(ir_node *, 1);
263 ent->val_ents = NEW_ARR_F(entity *, 1);
265 if ((is_compound_type(ent->type)) &&
266 (var == uninitialized) && (ent->variability != uninitialized)) {
267 /* Free datastructures for constant values */
268 DEL_ARR_F(ent->values);
269 DEL_ARR_F(ent->val_ents);
271 ent->variability = var;
275 INLINE ent_volatility
276 get_entity_volatility (entity *ent) {
278 return ent->volatility;
282 set_entity_volatility (entity *ent, ent_volatility vol) {
284 ent->volatility = vol;
288 get_entity_peculiarity (entity *ent) {
290 return ent->peculiarity;
294 set_entity_peculiarity (entity *ent, peculiarity pec) {
296 /* @@@ why peculiarity only for methods? */
297 assert (is_method_type(ent->type));
298 ent->peculiarity = pec;
301 /* Set has no effect for entities of type method. */
303 get_atomic_ent_value(entity *ent) {
304 assert(ent); assert(is_atomic_entity(ent));
305 assert((ent->variability != uninitialized));
310 set_atomic_ent_value(entity *ent, ir_node *val) {
311 assert(ent && is_atomic_entity(ent) && (ent->variability != uninitialized));
312 if (is_method_type(ent->type)) return;
317 ir_node *copy_const_value(ir_node *n) {
322 switch(get_irn_opcode(n)) {
324 nn = new_Const(m, get_Const_tarval(n)); break;
326 nn = new_SymConst(get_SymConst_type_or_id(n), get_SymConst_kind(n)); break;
328 nn = new_Add(copy_const_value(get_Add_left(n)), copy_const_value(get_Add_right(n)), m); break;
330 assert(0 && "opdope invalid or not implemented"); break;
335 /* A value of a compound entity is a pair of value and the corresponding member of
338 add_compound_ent_value(entity *ent, ir_node *val, entity *member) {
339 assert(ent && is_compound_entity(ent) && (ent->variability != uninitialized));
340 ARR_APP1 (ir_node *, ent->values, val);
341 ARR_APP1 (entity *, ent->val_ents, member);
344 /* Copies the firm subgraph referenced by val to const_code_irg and adds
345 the node as constant initialization to ent.
346 The subgraph may not contain control flow operations.
348 copy_and_add_compound_ent_value(entity *ent, ir_node *val, entity *member) {
349 ir_graph *rem = current_ir_graph;
351 assert(get_entity_variability(ent) != uninitialized);
352 current_ir_graph = get_const_code_irg();
354 val = copy_const_value(val);
355 add_compound_ent_value(ent, val, member);
356 current_ir_graph = rem;
360 get_compound_ent_n_values(entity *ent) {
361 assert(ent && is_compound_entity(ent) && (ent->variability != uninitialized));
362 return (ARR_LEN (ent->values))-1;
366 get_compound_ent_value(entity *ent, int pos) {
367 assert(ent && is_compound_entity(ent) && (ent->variability != uninitialized));
368 return ent->values[pos+1];
371 /* Copies the value i of the entity to current_block in current_ir_graph.
373 copy_compound_ent_value(entity *ent, int pos) {
374 assert(ent && is_compound_entity(ent) && (ent->variability != uninitialized));
375 return copy_const_value(ent->values[pos+1]);
379 get_compound_ent_value_member(entity *ent, int pos) {
380 assert(ent && is_compound_entity(ent) && (ent->variability != uninitialized));
381 return ent->val_ents[pos+1];
385 set_compound_ent_value(entity *ent, ir_node *val, entity *member, int pos) {
386 assert(ent && is_compound_entity(ent) && (ent->variability != uninitialized));
387 ent->values[pos+1] = val;
388 ent->val_ents[pos+1] = member;
392 remove_compound_ent_value(entity *ent, entity *value_ent) {
394 assert(ent && is_compound_entity(ent) && (ent->variability != uninitialized));
395 for (i = 1; i < (ARR_LEN (ent->val_ents)); i++) {
396 if (ent->val_ents[i] == value_ent) {
397 for(; i < (ARR_LEN (ent->val_ents))-1; i++) {
398 ent->val_ents[i] = ent->val_ents[i+1];
399 ent->values[i] = ent->values[i+1];
401 ARR_SETLEN(entity*, ent->val_ents, ARR_LEN(ent->val_ents) - 1);
402 ARR_SETLEN(ir_node*, ent->values, ARR_LEN(ent->values) - 1);
409 set_array_entity_values(entity *ent, tarval **values, int num_vals) {
411 ir_graph *rem = current_ir_graph;
412 type *arrtp = get_entity_type(ent);
415 assert(is_array_type(arrtp));
416 assert(get_array_n_dimensions(arrtp) == 1);
417 /* One bound is sufficient, the nunmber of constant fields makes the
419 assert(get_array_lower_bound (arrtp, 0) || get_array_upper_bound (arrtp, 0));
420 assert(get_entity_variability(ent) != uninitialized);
421 current_ir_graph = get_const_code_irg();
423 for (i = 0; i < num_vals; i++) {
424 val = new_Const(get_tv_mode (values[i]), values[i]);
425 add_compound_ent_value(ent, val, get_array_element_entity(arrtp));
427 current_ir_graph = rem;
431 get_entity_offset (entity *ent) {
436 set_entity_offset (entity *ent, int offset) {
437 ent->offset = offset;
441 add_entity_overwrites (entity *ent, entity *overwritten) {
443 assert(is_class_type(get_entity_owner(ent)));
444 ARR_APP1 (entity *, ent->overwrites, overwritten);
445 ARR_APP1 (entity *, overwritten->overwrittenby, ent);
449 get_entity_n_overwrites (entity *ent) {
451 assert(is_class_type(get_entity_owner(ent)));
452 return (ARR_LEN (ent->overwrites))-1;
456 get_entity_overwrites (entity *ent, int pos) {
458 assert(is_class_type(get_entity_owner(ent)));
459 assert(pos < get_entity_n_overwrites(ent));
460 return ent->overwrites[pos+1];
464 set_entity_overwrites (entity *ent, int pos, entity *overwritten) {
466 assert(is_class_type(get_entity_owner(ent)));
467 assert(pos < get_entity_n_overwrites(ent));
468 ent->overwrites[pos+1] = overwritten;
472 add_entity_overwrittenby (entity *ent, entity *overwrites) {
474 assert(is_class_type(get_entity_owner(ent)));
475 add_entity_overwrites(overwrites, ent);
479 get_entity_n_overwrittenby (entity *ent) {
481 assert(is_class_type(get_entity_owner(ent)));
482 return (ARR_LEN (ent->overwrittenby))-1;
486 get_entity_overwrittenby (entity *ent, int pos) {
488 assert(is_class_type(get_entity_owner(ent)));
489 assert(pos < get_entity_n_overwrittenby(ent));
490 return ent->overwrittenby[pos+1];
494 set_entity_overwrittenby (entity *ent, int pos, entity *overwrites) {
496 assert(is_class_type(get_entity_owner(ent)));
497 assert(pos < get_entity_n_overwrittenby(ent));
498 ent->overwrittenby[pos+1] = overwrites;
501 /* A link to store intermediate information */
503 get_entity_link(entity *ent) {
509 set_entity_link(entity *ent, void *l) {
515 get_entity_irg(entity *ent) {
517 assert (is_method_type(ent->type));
522 set_entity_irg(entity *ent, ir_graph *irg) {
523 assert (ent && ent->type);
524 /* Wie kann man die Referenz auf einen IRG löschen, z.B. wenn die
525 * Methode selbst nicht mehr aufgerufen werden kann, die Entität
526 * aber erhalten bleiben soll. */
528 assert (is_method_type(ent->type));
529 assert (ent->peculiarity == existent);
533 int is_atomic_entity(entity *ent) {
534 type* t = get_entity_type(ent);
535 return (is_primitive_type(t) || is_pointer_type(t) ||
536 is_enumeration_type(t) || is_method_type(t));
539 int is_compound_entity(entity *ent) {
540 type* t = get_entity_type(ent);
541 return (is_class_type(t) || is_struct_type(t) ||
542 is_array_type(t) || is_union_type(t));
545 bool equal_entity(entity *ent1, entity *ent2) {
550 unsigned long get_entity_visited(entity *entity) {
552 return entity->visit;
554 void set_entity_visited(entity *entity, unsigned long num) {
558 /* Sets visited field in entity to entity_visited. */
559 void mark_entity_visited(entity *entity) {
561 entity->visit = type_visited;