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.
23 * @author Martin Trapp, Christian Schaefer, Goetz Lindenmaier, Michael Beck
43 #include "irgraph_t.h"
44 #include "callgraph.h"
46 #include "compound_path.h"
48 /*-----------------------------------------------------------------*/
50 /*-----------------------------------------------------------------*/
52 ir_entity *unknown_entity = NULL;
54 ir_entity *get_unknown_entity(void) { return unknown_entity; }
56 /** The name of the unknown entity. */
57 #define UNKNOWN_ENTITY_NAME "unknown_entity"
59 /*-----------------------------------------------------------------*/
61 /*-----------------------------------------------------------------*/
64 * Add an entity to it's already set owner type.
66 static inline void insert_entity_in_owner(ir_entity *ent) {
67 ir_type *owner = ent->owner;
68 switch (get_type_tpop_code(owner)) {
70 add_class_member(owner, ent);
73 add_struct_member(owner, ent);
76 add_union_member(owner, ent);
79 set_array_element_entity(owner, ent);
82 panic("Unsupported type kind");
84 } /* insert_entity_in_owner */
87 * Creates a new entity. This entity is NOT inserted in the owner type.
89 * @param db debug info for this entity
90 * @param owner the owner type of the new entity
91 * @param name the name of the new entity
92 * @param type the type of the new entity
94 * @return the new created entity
96 static inline ir_entity *
97 new_rd_entity(dbg_info *db, ir_type *owner, ident *name, ir_type *type)
102 assert(!id_contains_char(name, ' ') && "entity name should not contain spaces");
104 res = XMALLOCZ(ir_entity);
106 res->kind = k_entity;
112 res->volatility = volatility_non_volatile;
113 res->aligned = align_is_aligned;
114 res->usage = ir_usage_unknown;
115 res->compiler_gen = 0;
116 res->backend_marked = 0;
118 res->offset_bit_remainder = 0;
121 res->repr_class = NULL;
123 if (is_Method_type(type)) {
125 ir_mode *mode = is_Method_type(type) ? mode_P_code : mode_P_data;
127 rem = current_ir_graph;
128 current_ir_graph = get_const_code_irg();
129 set_atomic_ent_value(res, new_SymConst(mode, sym, symconst_addr_ent));
130 current_ir_graph = rem;
131 res->linkage = IR_LINKAGE_CONSTANT;
132 res->attr.mtd_attr.irg_add_properties = mtp_property_inherited;
133 res->attr.mtd_attr.vtable_number = VTABLE_NUM_NOT_SET;
134 res->attr.mtd_attr.param_access = NULL;
135 res->attr.mtd_attr.param_weight = NULL;
136 res->attr.mtd_attr.irg = NULL;
137 } else if (is_compound_type(type)) {
138 res->attr.cmpd_attr.values = NULL;
139 res->attr.cmpd_attr.val_paths = NULL;
140 } else if (is_code_type(type)) {
141 res->attr.code_attr.label = (ir_label_t) -1;
144 if (is_Class_type(owner)) {
145 res->overwrites = NEW_ARR_F(ir_entity *, 0);
146 res->overwrittenby = NEW_ARR_F(ir_entity *, 0);
148 res->overwrites = NULL;
149 res->overwrittenby = NULL;
153 res->nr = get_irp_new_node_nr();
154 #endif /* DEBUG_libfirm */
157 set_entity_dbg_info(res, db);
160 } /* new_rd_entity */
163 new_d_entity(ir_type *owner, ident *name, ir_type *type, dbg_info *db) {
166 assert(is_compound_type(owner));
167 res = new_rd_entity(db, owner, name, type);
168 /* Remember entity in it's owner. */
169 insert_entity_in_owner(res);
171 hook_new_entity(res);
176 new_entity(ir_type *owner, ident *name, ir_type *type) {
177 return new_d_entity(owner, name, type, NULL);
181 * Free entity attributes.
183 * @param ent the entity
185 static void free_entity_attrs(ir_entity *ent)
188 if (get_type_tpop(get_entity_owner(ent)) == type_class) {
189 DEL_ARR_F(ent->overwrites); ent->overwrites = NULL;
190 DEL_ARR_F(ent->overwrittenby); ent->overwrittenby = NULL;
192 assert(ent->overwrites == NULL);
193 assert(ent->overwrittenby == NULL);
195 if (ent->initializer != NULL) {
196 /* TODO: free initializers */
197 } else if (entity_has_compound_ent_values(ent)) {
198 if (ent->attr.cmpd_attr.val_paths) {
199 for (i = get_compound_ent_n_values(ent) - 1; i >= 0; --i)
200 if (ent->attr.cmpd_attr.val_paths[i]) {
201 /* free_compound_graph_path(ent->attr.cmpd_attr.val_paths[i]) ; * @@@ warum nich? */
202 /* Geht nich: wird mehrfach verwendet!!! ==> mehrfach frei gegeben. */
203 /* DEL_ARR_F(ent->attr.cmpd_attr.val_paths); */
205 ent->attr.cmpd_attr.val_paths = NULL;
208 if (is_compound_entity(ent)) {
209 if (ent->attr.cmpd_attr.values) {
210 /*DEL_ARR_F(ent->attr.cmpd_attr.values)*/;
212 ent->attr.cmpd_attr.values = NULL;
213 } else if (is_method_entity(ent)) {
214 if (ent->attr.mtd_attr.param_access) {
215 DEL_ARR_F(ent->attr.mtd_attr.param_access);
216 ent->attr.mtd_attr.param_access = NULL;
218 if (ent->attr.mtd_attr.param_weight) {
219 DEL_ARR_F(ent->attr.mtd_attr.param_weight);
220 ent->attr.mtd_attr.param_weight = NULL;
223 } /* free_entity_attrs */
226 * Creates a deep copy of an entity.
228 static ir_entity *deep_entity_copy(ir_entity *old)
230 ir_entity *newe = XMALLOC(ir_entity);
233 if (old->initializer != NULL) {
234 /* FIXME: the initializers are NOT copied */
235 } else if (entity_has_compound_ent_values(old)) {
236 newe->attr.cmpd_attr.values = NULL;
237 newe->attr.cmpd_attr.val_paths = NULL;
238 if (old->attr.cmpd_attr.values)
239 newe->attr.cmpd_attr.values = DUP_ARR_F(ir_node *, old->attr.cmpd_attr.values);
241 /* FIXME: the compound graph paths are NOT copied */
242 if (old->attr.cmpd_attr.val_paths)
243 newe->attr.cmpd_attr.val_paths = DUP_ARR_F(compound_graph_path *, old->attr.cmpd_attr.val_paths);
244 } else if (is_method_entity(old)) {
245 /* do NOT copy them, reanalyze. This might be the best solution */
246 newe->attr.mtd_attr.param_access = NULL;
247 newe->attr.mtd_attr.param_weight = NULL;
251 newe->nr = get_irp_new_node_nr();
256 * Copies the entity if the new_owner is different from the
257 * owner of the old entity, else returns the old entity.
260 copy_entity_own(ir_entity *old, ir_type *new_owner) {
262 assert(is_entity(old));
263 assert(is_compound_type(new_owner));
264 assert(get_type_state(new_owner) != layout_fixed);
266 if (old->owner == new_owner)
269 /* create a deep copy so we are safe of aliasing and double-freeing. */
270 newe = deep_entity_copy(old);
271 newe->owner = new_owner;
273 if (is_Class_type(new_owner)) {
274 newe->overwrites = NEW_ARR_F(ir_entity *, 0);
275 newe->overwrittenby = NEW_ARR_F(ir_entity *, 0);
278 insert_entity_in_owner(newe);
280 } /* copy_entity_own */
283 copy_entity_name(ir_entity *old, ident *new_name) {
285 assert(old && old->kind == k_entity);
287 if (old->name == new_name) return old;
288 newe = deep_entity_copy(old);
289 newe->name = new_name;
290 newe->ld_name = NULL;
292 if (is_Class_type(newe->owner)) {
293 newe->overwrites = DUP_ARR_F(ir_entity *, old->overwrites);
294 newe->overwrittenby = DUP_ARR_F(ir_entity *, old->overwrittenby);
296 insert_entity_in_owner(newe);
299 } /* copy_entity_name */
302 free_entity(ir_entity *ent) {
303 assert(ent && ent->kind == k_entity);
304 free_entity_attrs(ent);
309 /* Outputs a unique number for this node */
311 get_entity_nr(const ir_entity *ent) {
312 assert(ent && ent->kind == k_entity);
316 return (long)PTR_TO_INT(ent);
318 } /* get_entity_nr */
321 (get_entity_name)(const ir_entity *ent) {
322 return _get_entity_name(ent);
326 (get_entity_ident)(const ir_entity *ent) {
327 return _get_entity_ident(ent);
331 (set_entity_ident)(ir_entity *ent, ident *id) {
332 _set_entity_ident(ent, id);
336 (get_entity_owner)(const ir_entity *ent) {
337 return _get_entity_owner(ent);
341 set_entity_owner(ir_entity *ent, ir_type *owner) {
342 assert(is_entity(ent));
343 assert(is_compound_type(owner));
347 ident *(get_entity_ld_ident)(const ir_entity *ent)
349 return _get_entity_ld_ident(ent);
353 (set_entity_ld_ident)(ir_entity *ent, ident *ld_ident) {
354 _set_entity_ld_ident(ent, ld_ident);
357 const char *(get_entity_ld_name)(const ir_entity *ent)
359 return _get_entity_ld_name(ent);
363 (get_entity_type)(const ir_entity *ent) {
364 return _get_entity_type(ent);
368 (set_entity_type)(ir_entity *ent, ir_type *type) {
369 _set_entity_type(ent, type);
373 (get_entity_volatility)(const ir_entity *ent) {
374 return _get_entity_volatility(ent);
378 (set_entity_volatility)(ir_entity *ent, ir_volatility vol) {
379 _set_entity_volatility(ent, vol);
382 /* Return the name of the volatility. */
383 const char *get_volatility_name(ir_volatility var)
385 #define X(a) case a: return #a
387 X(volatility_non_volatile);
388 X(volatility_is_volatile);
389 default: return "BAD VALUE";
392 } /* get_volatility_name */
395 (get_entity_aligned)(const ir_entity *ent) {
396 return _get_entity_aligned(ent);
400 (set_entity_aligned)(ir_entity *ent, ir_align a) {
401 _set_entity_aligned(ent, a);
405 (get_entity_alignment)(const ir_entity *ent) {
406 return _get_entity_alignment(ent);
410 (set_entity_alignment)(ir_entity *ent, unsigned alignment) {
411 _set_entity_alignment(ent, alignment);
414 /* Return the name of the alignment. */
415 const char *get_align_name(ir_align a)
417 #define X(a) case a: return #a
419 X(align_non_aligned);
421 default: return "BAD VALUE";
424 } /* get_align_name */
427 set_entity_label(ir_entity *ent, ir_label_t label)
429 ent->attr.code_attr.label = label;
432 ir_label_t get_entity_label(const ir_entity *ent)
434 return ent->attr.code_attr.label;
437 static void verify_linkage(ir_entity *entity)
439 ir_linkage linkage = entity->linkage;
440 /* local and extern are mutually exclusive */
442 assert(! ((linkage & IR_LINKAGE_EXTERN) && (linkage & IR_LINKAGE_LOCAL)));
443 assert(! (linkage & IR_LINKAGE_EXTERN) || !entity_has_definition(entity));
446 void set_entity_linkage(ir_entity *entity, ir_linkage linkage)
448 entity->linkage = linkage;
449 verify_linkage(entity);
452 ir_linkage (get_entity_linkage)(const ir_entity *entity)
454 return get_entity_linkage(entity);
457 void add_entity_linkage(ir_entity *entity, ir_linkage linkage)
459 entity->linkage |= linkage;
460 verify_linkage(entity);
463 void remove_entity_linkage(ir_entity *entity, ir_linkage linkage)
465 entity->linkage &= ~linkage;
466 verify_linkage(entity);
469 /* Checks if an entity is compiler generated */
470 int (is_entity_compiler_generated)(const ir_entity *ent) {
471 return _is_entity_compiler_generated(ent);
472 } /* is_entity_compiler_generated */
474 /* Sets/resets the compiler generated flag */
475 void (set_entity_compiler_generated)(ir_entity *ent, int flag) {
476 _set_entity_compiler_generated(ent, flag);
477 } /* set_entity_compiler_generated */
479 /* Checks if an entity is marked by the backend */
480 int (is_entity_backend_marked)(const ir_entity *ent) {
481 return _is_entity_backend_marked(ent);
482 } /* is_entity_backend_marked */
484 /* Sets/resets the compiler generated flag */
485 void (set_entity_backend_marked)(ir_entity *ent, int flag) {
486 _set_entity_backend_marked(ent, flag);
487 } /* set_entity_backend_marked */
489 ir_entity_usage (get_entity_usage)(const ir_entity *ent) {
490 return _get_entity_usage(ent);
493 void (set_entity_usage)(ir_entity *ent, ir_entity_usage flags) {
494 _set_entity_usage(ent, flags);
497 /* Set has no effect for existent entities of type method. */
498 ir_node *get_atomic_ent_value(ir_entity *entity)
500 ir_initializer_t *initializer = get_entity_initializer(entity);
502 assert(entity && is_atomic_entity(entity));
503 if (initializer == NULL) {
504 ir_type *type = get_entity_type(entity);
505 return new_r_Unknown(get_const_code_irg(), get_type_mode(type));
508 switch (get_initializer_kind(initializer)) {
509 case IR_INITIALIZER_NULL: {
510 ir_type *type = get_entity_type(entity);
511 ir_mode *mode = get_type_mode(type);
512 return new_r_Const(get_const_code_irg(), get_mode_null(mode));
514 case IR_INITIALIZER_TARVAL: {
515 tarval *tv = get_initializer_tarval_value(initializer);
516 return new_r_Const(get_const_code_irg(), tv);
518 case IR_INITIALIZER_CONST:
519 return get_initializer_const_value(initializer);
520 case IR_INITIALIZER_COMPOUND:
521 panic("compound initializer in atomic entity not allowed (%+F)", entity);
524 panic("invalid initializer kind in get_atomic_ent_value(%+F)", entity);
527 void set_atomic_ent_value(ir_entity *entity, ir_node *val)
529 ir_initializer_t *initializer;
531 assert(is_atomic_entity(entity));
532 assert(get_entity_peculiarity(entity) != peculiarity_description);
534 assert(is_Dummy(val) || get_irn_mode(val) == get_type_mode(entity->type));
535 initializer = create_initializer_const(val);
536 entity->initializer = initializer;
539 /* Returns true if the the node is representable as code on
541 int is_irn_const_expression(ir_node *n) {
544 /* we are in danger iff an exception will arise. TODO: be more precisely,
545 * for instance Div. will NOT rise if divisor != 0
547 if (is_binop(n) && !is_fragile_op(n))
548 return is_irn_const_expression(get_binop_left(n)) && is_irn_const_expression(get_binop_right(n));
551 switch (get_irn_opcode(n)) {
558 return is_irn_const_expression(get_irn_n(n, 0));
563 } /* is_irn_const_expression */
566 * Copies a firm subgraph that complies to the restrictions for
567 * constant expressions to current_block in current_ir_graph.
569 ir_node *copy_const_value(dbg_info *dbg, ir_node *n) {
573 /* @@@ GL I think we should implement this using the routines from irgopt for
574 dead node elimination/inlineing. */
577 switch (get_irn_opcode(n)) {
579 nn = new_d_Const_type(dbg, get_Const_tarval(n), get_Const_type(n));
582 nn = new_d_SymConst_type(dbg, get_irn_mode(n), get_SymConst_symbol(n), get_SymConst_kind(n),
583 get_SymConst_value_type(n));
586 nn = new_d_Add(dbg, copy_const_value(dbg, get_Add_left(n)),
587 copy_const_value(dbg, get_Add_right(n)), m); break;
589 nn = new_d_Sub(dbg, copy_const_value(dbg, get_Sub_left(n)),
590 copy_const_value(dbg, get_Sub_right(n)), m); break;
592 nn = new_d_Mul(dbg, copy_const_value(dbg, get_Mul_left(n)),
593 copy_const_value(dbg, get_Mul_right(n)), m); break;
595 nn = new_d_And(dbg, copy_const_value(dbg, get_And_left(n)),
596 copy_const_value(dbg, get_And_right(n)), m); break;
598 nn = new_d_Or(dbg, copy_const_value(dbg, get_Or_left(n)),
599 copy_const_value(dbg, get_Or_right(n)), m); break;
601 nn = new_d_Eor(dbg, copy_const_value(dbg, get_Eor_left(n)),
602 copy_const_value(dbg, get_Eor_right(n)), m); break;
604 nn = new_d_Cast(dbg, copy_const_value(dbg, get_Cast_op(n)), get_Cast_type(n)); break;
606 nn = new_d_Conv(dbg, copy_const_value(dbg, get_Conv_op(n)), m); break;
608 nn = new_Unknown(m); break;
610 assert(0 && "opcode invalid or not implemented");
615 } /* copy_const_value */
617 /** Return the name of the initializer kind. */
618 const char *get_initializer_kind_name(ir_initializer_kind_t ini)
620 #define X(a) case a: return #a
622 X(IR_INITIALIZER_CONST);
623 X(IR_INITIALIZER_TARVAL);
624 X(IR_INITIALIZER_NULL);
625 X(IR_INITIALIZER_COMPOUND);
626 default: return "BAD VALUE";
631 static ir_initializer_t null_initializer = { IR_INITIALIZER_NULL };
633 ir_initializer_t *get_initializer_null(void)
635 return &null_initializer;
638 ir_initializer_t *create_initializer_const(ir_node *value)
640 struct obstack *obst = get_irg_obstack(get_const_code_irg());
642 ir_initializer_t *initializer
643 = obstack_alloc(obst, sizeof(ir_initializer_const_t));
644 initializer->kind = IR_INITIALIZER_CONST;
645 initializer->consti.value = value;
650 ir_initializer_t *create_initializer_tarval(tarval *tv)
652 struct obstack *obst = get_irg_obstack(get_const_code_irg());
654 ir_initializer_t *initializer
655 = obstack_alloc(obst, sizeof(ir_initializer_tarval_t));
656 initializer->kind = IR_INITIALIZER_TARVAL;
657 initializer->tarval.value = tv;
662 ir_initializer_t *create_initializer_compound(unsigned n_entries)
664 struct obstack *obst = get_irg_obstack(get_const_code_irg());
667 size_t size = sizeof(ir_initializer_compound_t)
668 + (n_entries-1) * sizeof(ir_initializer_t*);
670 ir_initializer_t *initializer = obstack_alloc(obst, size);
671 initializer->kind = IR_INITIALIZER_COMPOUND;
672 initializer->compound.n_initializers = n_entries;
674 for(i = 0; i < n_entries; ++i) {
675 initializer->compound.initializers[i] = get_initializer_null();
681 ir_node *get_initializer_const_value(const ir_initializer_t *initializer)
683 assert(initializer->kind == IR_INITIALIZER_CONST);
684 return skip_Id(initializer->consti.value);
687 tarval *get_initializer_tarval_value(const ir_initializer_t *initializer)
689 assert(initializer->kind == IR_INITIALIZER_TARVAL);
690 return initializer->tarval.value;
693 unsigned get_initializer_compound_n_entries(const ir_initializer_t *initializer)
695 assert(initializer->kind == IR_INITIALIZER_COMPOUND);
696 return initializer->compound.n_initializers;
699 void set_initializer_compound_value(ir_initializer_t *initializer,
700 unsigned index, ir_initializer_t *value)
702 assert(initializer->kind == IR_INITIALIZER_COMPOUND);
703 assert(index < initializer->compound.n_initializers);
705 initializer->compound.initializers[index] = value;
708 ir_initializer_t *get_initializer_compound_value(
709 const ir_initializer_t *initializer, unsigned index)
711 assert(initializer->kind == IR_INITIALIZER_COMPOUND);
712 assert(index < initializer->compound.n_initializers);
714 return initializer->compound.initializers[index];
717 ir_initializer_kind_t get_initializer_kind(const ir_initializer_t *initializer)
719 return initializer->kind;
722 static void check_entity_initializer(ir_entity *entity)
725 ir_initializer_t *initializer = entity->initializer;
726 switch (initializer->kind) {
727 case IR_INITIALIZER_COMPOUND:
728 assert(is_compound_entity(entity));
730 case IR_INITIALIZER_CONST:
731 case IR_INITIALIZER_TARVAL:
732 assert(is_atomic_entity(entity));
734 case IR_INITIALIZER_NULL:
740 void set_entity_initializer(ir_entity *entity, ir_initializer_t *initializer)
742 entity->initializer = initializer;
743 check_entity_initializer(entity);
746 int has_entity_initializer(const ir_entity *entity)
748 return entity->initializer != NULL;
751 ir_initializer_t *get_entity_initializer(const ir_entity *entity)
753 return entity->initializer;
756 int (get_entity_offset)(const ir_entity *ent)
758 return _get_entity_offset(ent);
761 void (set_entity_offset)(ir_entity *ent, int offset)
763 _set_entity_offset(ent, offset);
766 unsigned char (get_entity_offset_bits_remainder)(const ir_entity *ent)
768 return _get_entity_offset_bits_remainder(ent);
771 void (set_entity_offset_bits_remainder)(ir_entity *ent, unsigned char offset)
773 _set_entity_offset_bits_remainder(ent, offset);
776 void add_entity_overwrites(ir_entity *ent, ir_entity *overwritten)
779 ir_type *owner = get_entity_owner(ent);
780 ir_type *ovw_ovner = get_entity_owner(overwritten);
781 assert(is_Class_type(owner));
782 assert(is_Class_type(ovw_ovner));
783 assert(! is_class_final(ovw_ovner));
785 ARR_APP1(ir_entity *, ent->overwrites, overwritten);
786 ARR_APP1(ir_entity *, overwritten->overwrittenby, ent);
789 int get_entity_n_overwrites(const ir_entity *ent)
791 assert(is_Class_type(get_entity_owner(ent)));
792 return (ARR_LEN(ent->overwrites));
795 int get_entity_overwrites_index(const ir_entity *ent, ir_entity *overwritten)
798 assert(is_Class_type(get_entity_owner(ent)));
799 n = get_entity_n_overwrites(ent);
800 for (i = 0; i < n; ++i) {
801 if (get_entity_overwrites(ent, i) == overwritten)
807 ir_entity *get_entity_overwrites(const ir_entity *ent, int pos)
809 assert(is_Class_type(get_entity_owner(ent)));
810 assert(pos < get_entity_n_overwrites(ent));
811 return ent->overwrites[pos];
814 void set_entity_overwrites(ir_entity *ent, int pos, ir_entity *overwritten)
816 assert(is_Class_type(get_entity_owner(ent)));
817 assert(pos < get_entity_n_overwrites(ent));
818 ent->overwrites[pos] = overwritten;
821 void remove_entity_overwrites(ir_entity *ent, ir_entity *overwritten)
824 assert(is_Class_type(get_entity_owner(ent)));
825 n = ARR_LEN(ent->overwrites);
826 for (i = 0; i < n; ++i) {
827 if (ent->overwrites[i] == overwritten) {
828 for (; i < n - 1; i++)
829 ent->overwrites[i] = ent->overwrites[i+1];
830 ARR_SETLEN(ir_entity*, ent->overwrites, n - 1);
836 void add_entity_overwrittenby(ir_entity *ent, ir_entity *overwrites)
838 add_entity_overwrites(overwrites, ent);
841 int get_entity_n_overwrittenby(const ir_entity *ent)
843 assert(is_Class_type(get_entity_owner(ent)));
844 return ARR_LEN(ent->overwrittenby);
847 int get_entity_overwrittenby_index(const ir_entity *ent, ir_entity *overwrites)
850 assert(is_Class_type(get_entity_owner(ent)));
851 n = get_entity_n_overwrittenby(ent);
852 for (i = 0; i < n; ++i) {
853 if (get_entity_overwrittenby(ent, i) == overwrites)
859 ir_entity *get_entity_overwrittenby(const ir_entity *ent, int pos)
861 assert(is_Class_type(get_entity_owner(ent)));
862 assert(pos < get_entity_n_overwrittenby(ent));
863 return ent->overwrittenby[pos];
866 void set_entity_overwrittenby(ir_entity *ent, int pos, ir_entity *overwrites)
868 assert(is_Class_type(get_entity_owner(ent)));
869 assert(pos < get_entity_n_overwrittenby(ent));
870 ent->overwrittenby[pos] = overwrites;
873 void remove_entity_overwrittenby(ir_entity *ent, ir_entity *overwrites)
876 assert(is_Class_type(get_entity_owner(ent)));
878 n = ARR_LEN(ent->overwrittenby);
879 for (i = 0; i < n; ++i) {
880 if (ent->overwrittenby[i] == overwrites) {
881 for(; i < n - 1; ++i)
882 ent->overwrittenby[i] = ent->overwrittenby[i+1];
883 ARR_SETLEN(ir_entity*, ent->overwrittenby, n - 1);
889 void *(get_entity_link)(const ir_entity *ent)
891 return _get_entity_link(ent);
894 void (set_entity_link)(ir_entity *ent, void *l)
896 _set_entity_link(ent, l);
899 ir_graph *(get_entity_irg)(const ir_entity *ent)
901 return _get_entity_irg(ent);
904 void set_entity_irg(ir_entity *ent, ir_graph *irg)
906 assert(is_method_entity(ent));
907 assert(get_entity_peculiarity(ent) == peculiarity_existent);
908 ent->attr.mtd_attr.irg = irg;
911 unsigned get_entity_vtable_number(const ir_entity *ent)
913 assert(is_method_entity((ir_entity *)ent));
914 return ent->attr.mtd_attr.vtable_number;
917 void set_entity_vtable_number(ir_entity *ent, unsigned vtable_number)
919 assert(is_method_entity(ent));
920 ent->attr.mtd_attr.vtable_number = vtable_number;
923 int (is_entity)(const void *thing)
925 return _is_entity(thing);
928 int is_atomic_entity(const ir_entity *ent)
930 ir_type *t = get_entity_type(ent);
931 const tp_op *op = get_type_tpop(t);
932 return (op == type_primitive || op == type_pointer ||
933 op == type_enumeration || op == type_method);
936 int is_compound_entity(const ir_entity *ent)
938 ir_type *t = get_entity_type(ent);
939 const tp_op *op = get_type_tpop(t);
940 return (op == type_class || op == type_struct ||
941 op == type_array || op == type_union);
944 int is_method_entity(const ir_entity *ent)
946 ir_type *t = get_entity_type(ent);
947 return is_Method_type(t);
950 ir_visited_t (get_entity_visited)(const ir_entity *ent)
952 return _get_entity_visited(ent);
955 void (set_entity_visited)(ir_entity *ent, ir_visited_t num)
957 _set_entity_visited(ent, num);
960 void (mark_entity_visited)(ir_entity *ent)
962 _mark_entity_visited(ent);
965 int (entity_visited)(const ir_entity *ent)
967 return _entity_visited(ent);
970 int (entity_not_visited)(const ir_entity *ent)
972 return _entity_not_visited(ent);
975 unsigned get_entity_additional_properties(const ir_entity *ent)
979 assert(is_method_entity(ent));
981 /* first check, if the graph has additional properties */
982 irg = get_entity_irg(ent);
985 return get_irg_additional_properties(irg);
987 if (ent->attr.mtd_attr.irg_add_properties & mtp_property_inherited)
988 return get_method_additional_properties(get_entity_type(ent));
990 return ent->attr.mtd_attr.irg_add_properties;
993 void set_entity_additional_properties(ir_entity *ent, unsigned property_mask)
997 assert(is_method_entity(ent));
999 /* first check, if the graph exists */
1000 irg = get_entity_irg(ent);
1002 set_irg_additional_properties(irg, property_mask);
1004 /* do not allow to set the mtp_property_inherited flag or
1005 * the automatic inheritance of flags will not work */
1006 ent->attr.mtd_attr.irg_add_properties = property_mask & ~mtp_property_inherited;
1010 void set_entity_additional_property(ir_entity *ent, mtp_additional_property flag)
1014 assert(is_method_entity(ent));
1016 /* first check, if the graph exists */
1017 irg = get_entity_irg(ent);
1019 set_irg_additional_property(irg, flag);
1021 unsigned mask = ent->attr.mtd_attr.irg_add_properties;
1023 if (mask & mtp_property_inherited)
1024 mask = get_method_additional_properties(get_entity_type(ent));
1026 /* do not allow to set the mtp_property_inherited flag or
1027 * the automatic inheritance of flags will not work */
1028 ent->attr.mtd_attr.irg_add_properties = mask | (flag & ~mtp_property_inherited);
1032 /* Returns the class type that this type info entity represents or NULL
1033 if ent is no type info entity. */
1034 ir_type *(get_entity_repr_class)(const ir_entity *ent)
1036 return _get_entity_repr_class(ent);
1039 dbg_info *(get_entity_dbg_info)(const ir_entity *ent)
1041 return _get_entity_dbg_info(ent);
1044 void (set_entity_dbg_info)(ir_entity *ent, dbg_info *db)
1046 _set_entity_dbg_info(ent, db);
1049 int entity_is_externally_visible(const ir_entity *entity)
1051 return (get_entity_linkage(entity) & IR_LINKAGE_LOCAL) == 0;
1054 int entity_has_definition(const ir_entity *entity)
1056 return entity->initializer != NULL
1057 || get_entity_irg(entity) != NULL
1058 || entity_has_compound_ent_values(entity);
1061 void firm_init_entity(void)
1063 symconst_symbol sym;
1065 assert(firm_unknown_type && "Call init_type() before firm_init_entity()!");
1066 assert(!unknown_entity && "Call firm_init_entity() only once!");
1068 unknown_entity = new_rd_entity(NULL, firm_unknown_type, new_id_from_str(UNKNOWN_ENTITY_NAME), firm_unknown_type);
1069 set_entity_linkage(unknown_entity, IR_LINKAGE_EXTERN);
1071 set_entity_ld_ident(unknown_entity, get_entity_ident(unknown_entity));
1073 current_ir_graph = get_const_code_irg();
1074 sym.entity_p = unknown_entity;
1077 ir_allocation get_entity_allocation(const ir_entity *entity)
1079 return entity->allocation;
1082 void set_entity_allocation(ir_entity *entity, ir_allocation allocation)
1084 entity->allocation = allocation;
1087 ir_peculiarity get_entity_peculiarity(const ir_entity *entity)
1089 return entity->peculiarity;
1092 void set_entity_peculiarity(ir_entity *entity, ir_peculiarity peculiarity)
1094 entity->peculiarity = peculiarity;
1097 void set_entity_final(ir_entity *entity, int final)
1099 entity->final = final;
1102 int is_entity_final(const ir_entity *entity)
1104 return entity->final;