1 /*
2 * Copyright (C) 1995-2011 University of Karlsruhe. All right reserved.
3 *
4 * This file is part of libFirm.
5 *
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.
10 *
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.
14 *
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
17 * PURPOSE.
18 */
19
20 /**
21 * @file
22 * @brief Representation of all program known entities.
23 * @author Martin Trapp, Christian Schaefer, Goetz Lindenmaier, Michael Beck
24 */
25 #include "config.h"
26
27 #include <string.h>
28 #include <stdlib.h>
29 #include <stddef.h>
30
31 #include "xmalloc.h"
32 #include "entity_t.h"
33 #include "array.h"
34 #include "util.h"
35 #include "irhooks.h"
36 #include "irprintf.h"
37
38 #include "irprog_t.h"
39 #include "ircons.h"
40 #include "tv_t.h"
41 #include "irdump.h"
42 #include "irgraph_t.h"
43 #include "callgraph.h"
44 #include "error.h"
45
46 /** The name of the unknown entity. */
47 #define UNKNOWN_ENTITY_NAME "unknown_entity"
48
get_unknown_entity(void)49 ir_entity *get_unknown_entity(void)
50 {
51 return irp->unknown_entity;
52 }
53
54 /*-----------------------------------------------------------------*/
55 /* ENTITY */
56 /*-----------------------------------------------------------------*/
57
intern_new_entity(ir_type * owner,ir_entity_kind kind,ident * name,ir_type * type,dbg_info * dbgi)58 static ir_entity *intern_new_entity(ir_type *owner, ir_entity_kind kind,
59 ident *name, ir_type *type, dbg_info *dbgi)
60 {
61 ir_entity *res = XMALLOCZ(ir_entity);
62
63 res->kind = k_entity;
64 res->name = name;
65 res->ld_name = NULL;
66 res->type = type;
67 res->owner = owner;
68
69 res->entity_kind = kind;
70 res->volatility = volatility_non_volatile;
71 res->aligned = align_is_aligned;
72 res->usage = ir_usage_unknown;
73 res->compiler_gen = 0;
74 res->visibility = ir_visibility_external;
75 res->offset = -1;
76 res->offset_bit_remainder = 0;
77 res->alignment = 0;
78 res->link = NULL;
79 res->repr_class = NULL;
80 #ifdef DEBUG_libfirm
81 res->nr = get_irp_new_node_nr();
82 #endif
83
84 /* Remember entity in its owner. */
85 if (owner != NULL)
86 add_compound_member(owner, res);
87
88 res->visit = 0;
89 set_entity_dbg_info(res, dbgi);
90
91 return res;
92 }
93
new_d_entity(ir_type * owner,ident * name,ir_type * type,dbg_info * db)94 ir_entity *new_d_entity(ir_type *owner, ident *name, ir_type *type,
95 dbg_info *db)
96 {
97 ir_entity *res;
98
99 if (is_Method_type(type)) {
100 ir_graph *irg = get_const_code_irg();
101 symconst_symbol sym;
102 res = intern_new_entity(owner, IR_ENTITY_METHOD, name, type, db);
103 sym.entity_p = res;
104 set_atomic_ent_value(res, new_r_SymConst(irg, mode_P_code, sym, symconst_addr_ent));
105 res->linkage = IR_LINKAGE_CONSTANT;
106 res->attr.mtd_attr.properties = get_method_additional_properties(type);
107 res->attr.mtd_attr.vtable_number = IR_VTABLE_NUM_NOT_SET;
108 res->attr.mtd_attr.param_access = NULL;
109 res->attr.mtd_attr.param_weight = NULL;
110 res->attr.mtd_attr.irg = NULL;
111 } else if (owner != NULL
112 && (is_compound_type(owner) && !(owner->flags & tf_segment))) {
113 res = intern_new_entity(owner, IR_ENTITY_COMPOUND_MEMBER, name, type, db);
114 } else {
115 res = intern_new_entity(owner, IR_ENTITY_NORMAL, name, type, db);
116 }
117
118 hook_new_entity(res);
119 return res;
120 }
121
new_entity(ir_type * owner,ident * name,ir_type * type)122 ir_entity *new_entity(ir_type *owner, ident *name, ir_type *type)
123 {
124 return new_d_entity(owner, name, type, NULL);
125 }
126
make_parameter_entity_name(size_t pos)127 static ident *make_parameter_entity_name(size_t pos)
128 {
129 char buf[64];
130 snprintf(buf, sizeof(buf), "parameter.%lu", (unsigned long) pos);
131 return new_id_from_str(buf);
132 }
133
new_d_parameter_entity(ir_type * owner,size_t pos,ir_type * type,dbg_info * dbgi)134 ir_entity *new_d_parameter_entity(ir_type *owner, size_t pos, ir_type *type,
135 dbg_info *dbgi)
136 {
137 ident *name = make_parameter_entity_name(pos);
138 ir_entity *res
139 = intern_new_entity(owner, IR_ENTITY_PARAMETER, name, type, dbgi);
140 res->attr.parameter.number = pos;
141 hook_new_entity(res);
142 return res;
143 }
144
new_parameter_entity(ir_type * owner,size_t pos,ir_type * type)145 ir_entity *new_parameter_entity(ir_type *owner, size_t pos, ir_type *type)
146 {
147 return new_d_parameter_entity(owner, pos, type, NULL);
148 }
149
new_d_label_entity(ir_label_t label,dbg_info * dbgi)150 ir_entity *new_d_label_entity(ir_label_t label, dbg_info *dbgi)
151 {
152 ident *name = id_unique("label_%u");
153 ir_type *global_type = get_glob_type();
154 ir_entity *res
155 = intern_new_entity(global_type, IR_ENTITY_LABEL, name, get_code_type(),
156 dbgi);
157 res->attr.code_attr.label = label;
158 hook_new_entity(res);
159 return res;
160 }
161
new_label_entity(ir_label_t label)162 ir_entity *new_label_entity(ir_label_t label)
163 {
164 return new_d_label_entity(label, NULL);
165 }
166
167 /**
168 * Free entity attributes.
169 *
170 * @param ent the entity
171 */
free_entity_attrs(ir_entity * ent)172 static void free_entity_attrs(ir_entity *ent)
173 {
174 if (ent->overwrites != NULL) {
175 DEL_ARR_F(ent->overwrites);
176 ent->overwrites = NULL;
177 }
178 if (ent->overwrittenby != NULL) {
179 DEL_ARR_F(ent->overwrittenby);
180 ent->overwrittenby = NULL;
181 }
182
183 if (ent->initializer != NULL) {
184 /* TODO: free initializers */
185 }
186 if (ent->entity_kind == IR_ENTITY_METHOD) {
187 if (ent->attr.mtd_attr.param_access) {
188 DEL_ARR_F(ent->attr.mtd_attr.param_access);
189 ent->attr.mtd_attr.param_access = NULL;
190 }
191 if (ent->attr.mtd_attr.param_weight) {
192 DEL_ARR_F(ent->attr.mtd_attr.param_weight);
193 ent->attr.mtd_attr.param_weight = NULL;
194 }
195 }
196 }
197
198 /**
199 * Creates a deep copy of an entity.
200 */
deep_entity_copy(ir_entity * old)201 static ir_entity *deep_entity_copy(ir_entity *old)
202 {
203 ir_entity *newe = XMALLOC(ir_entity);
204
205 *newe = *old;
206 if (old->initializer != NULL) {
207 /* FIXME: the initializers are NOT copied */
208 } else if (is_method_entity(old)) {
209 /* do NOT copy them, reanalyze. This might be the best solution */
210 newe->attr.mtd_attr.param_access = NULL;
211 newe->attr.mtd_attr.param_weight = NULL;
212 }
213 newe->overwrites = NULL;
214 newe->overwrittenby = NULL;
215
216 #ifdef DEBUG_libfirm
217 newe->nr = get_irp_new_node_nr();
218 #endif
219 hook_new_entity(newe);
220 return newe;
221 }
222
copy_entity_own(ir_entity * old,ir_type * new_owner)223 ir_entity *copy_entity_own(ir_entity *old, ir_type *new_owner)
224 {
225 ir_entity *newe;
226 assert(is_entity(old));
227 assert(is_compound_type(new_owner));
228 assert(get_type_state(new_owner) != layout_fixed);
229
230 if (old->owner == new_owner)
231 return old;
232
233 /* create a deep copy so we are safe of aliasing and double-freeing. */
234 newe = deep_entity_copy(old);
235 newe->owner = new_owner;
236 add_compound_member(new_owner, newe);
237
238 return newe;
239 }
240
copy_entity_name(ir_entity * old,ident * new_name)241 ir_entity *copy_entity_name(ir_entity *old, ident *new_name)
242 {
243 ir_entity *newe;
244 assert(old && old->kind == k_entity);
245
246 if (old->name == new_name)
247 return old;
248
249 newe = deep_entity_copy(old);
250 newe->name = new_name;
251 newe->ld_name = NULL;
252 add_compound_member(old->owner, newe);
253
254 return newe;
255 }
256
free_entity(ir_entity * ent)257 void free_entity(ir_entity *ent)
258 {
259 if (ent->owner != NULL && !is_Array_type(ent->owner))
260 remove_compound_member(ent->owner, ent);
261
262 assert(ent && ent->kind == k_entity);
263 free_entity_attrs(ent);
264 #ifdef DEBUG_libfirm
265 ent->kind = k_BAD;
266 #endif
267 xfree(ent);
268 }
269
get_entity_nr(const ir_entity * ent)270 long get_entity_nr(const ir_entity *ent)
271 {
272 assert(ent && ent->kind == k_entity);
273 #ifdef DEBUG_libfirm
274 return ent->nr;
275 #else
276 return (long)PTR_TO_INT(ent);
277 #endif
278 }
279
280 const char *(get_entity_name)(const ir_entity *ent)
281 {
282 return _get_entity_name(ent);
283 }
284
285 ident *(get_entity_ident)(const ir_entity *ent)
286 {
287 return _get_entity_ident(ent);
288 }
289
290 void (set_entity_ident)(ir_entity *ent, ident *id)
291 {
292 _set_entity_ident(ent, id);
293 }
294
295 ir_type *(get_entity_owner)(const ir_entity *ent)
296 {
297 return _get_entity_owner(ent);
298 }
299
set_entity_owner(ir_entity * ent,ir_type * owner)300 void set_entity_owner(ir_entity *ent, ir_type *owner)
301 {
302 assert(is_entity(ent));
303 assert(is_compound_type(owner));
304
305 remove_compound_member(ent->owner, ent);
306 add_compound_member(owner, ent);
307 ent->owner = owner;
308 }
309
310 ident *(get_entity_ld_ident)(const ir_entity *ent)
311 {
312 return _get_entity_ld_ident(ent);
313 }
314
315 void (set_entity_ld_ident)(ir_entity *ent, ident *ld_ident)
316 {
317 _set_entity_ld_ident(ent, ld_ident);
318 }
319
320 const char *(get_entity_ld_name)(const ir_entity *ent)
321 {
322 return _get_entity_ld_name(ent);
323 }
324
entity_has_ld_ident(const ir_entity * entity)325 int entity_has_ld_ident(const ir_entity *entity)
326 {
327 return entity->ld_name != NULL;
328 }
329
330 ir_type *(get_entity_type)(const ir_entity *ent)
331 {
332 return _get_entity_type(ent);
333 }
334
set_entity_type(ir_entity * ent,ir_type * type)335 void set_entity_type(ir_entity *ent, ir_type *type)
336 {
337 switch (ent->entity_kind) {
338 case IR_ENTITY_METHOD:
339 assert(is_Method_type(type));
340 break;
341 case IR_ENTITY_NORMAL:
342 assert(!is_Method_type(type));
343 break;
344 case IR_ENTITY_LABEL:
345 assert(type == get_code_type());
346 break;
347 case IR_ENTITY_COMPOUND_MEMBER:
348 break;
349 }
350 ent->type = type;
351 }
352
ir_volatility(get_entity_volatility)353 ir_volatility (get_entity_volatility)(const ir_entity *ent)
354 {
355 return _get_entity_volatility(ent);
356 }
357
358 void (set_entity_volatility)(ir_entity *ent, ir_volatility vol)
359 {
360 _set_entity_volatility(ent, vol);
361 }
362
get_volatility_name(ir_volatility var)363 const char *get_volatility_name(ir_volatility var)
364 {
365 #define X(a) case a: return #a
366 switch (var) {
367 X(volatility_non_volatile);
368 X(volatility_is_volatile);
369 default: return "BAD VALUE";
370 }
371 #undef X
372 }
373
ir_align(get_entity_aligned)374 ir_align (get_entity_aligned)(const ir_entity *ent)
375 {
376 return _get_entity_aligned(ent);
377 }
378
379 void (set_entity_aligned)(ir_entity *ent, ir_align a)
380 {
381 _set_entity_aligned(ent, a);
382 }
383
384 unsigned (get_entity_alignment)(const ir_entity *ent)
385 {
386 return _get_entity_alignment(ent);
387 }
388
389 void (set_entity_alignment)(ir_entity *ent, unsigned alignment)
390 {
391 _set_entity_alignment(ent, alignment);
392 }
393
get_align_name(ir_align a)394 const char *get_align_name(ir_align a)
395 {
396 #define X(a) case a: return #a
397 switch (a) {
398 X(align_non_aligned);
399 X(align_is_aligned);
400 default: return "BAD VALUE";
401 }
402 #undef X
403 }
404
set_entity_label(ir_entity * ent,ir_label_t label)405 void set_entity_label(ir_entity *ent, ir_label_t label)
406 {
407 assert(ent->entity_kind == IR_ENTITY_LABEL);
408 ent->attr.code_attr.label = label;
409 }
410
get_entity_label(const ir_entity * ent)411 ir_label_t get_entity_label(const ir_entity *ent)
412 {
413 assert(ent->entity_kind == IR_ENTITY_LABEL);
414 return ent->attr.code_attr.label;
415 }
416
set_entity_visibility(ir_entity * entity,ir_visibility visibility)417 void set_entity_visibility(ir_entity *entity, ir_visibility visibility)
418 {
419 entity->visibility = visibility;
420 }
421
get_entity_visibility(const ir_entity * entity)422 ir_visibility get_entity_visibility(const ir_entity *entity)
423 {
424 return (ir_visibility)entity->visibility;
425 }
426
set_entity_linkage(ir_entity * entity,ir_linkage linkage)427 void set_entity_linkage(ir_entity *entity, ir_linkage linkage)
428 {
429 entity->linkage = linkage;
430 }
431
ir_linkage(get_entity_linkage)432 ir_linkage (get_entity_linkage)(const ir_entity *entity)
433 {
434 return get_entity_linkage(entity);
435 }
436
add_entity_linkage(ir_entity * entity,ir_linkage linkage)437 void add_entity_linkage(ir_entity *entity, ir_linkage linkage)
438 {
439 entity->linkage |= linkage;
440 }
441
remove_entity_linkage(ir_entity * entity,ir_linkage linkage)442 void remove_entity_linkage(ir_entity *entity, ir_linkage linkage)
443 {
444 entity->linkage &= ~linkage;
445 }
446
447 int (is_entity_compiler_generated)(const ir_entity *ent)
448 {
449 return _is_entity_compiler_generated(ent);
450 }
451
452 void (set_entity_compiler_generated)(ir_entity *ent, int flag)
453 {
454 _set_entity_compiler_generated(ent, flag);
455 }
456
ir_entity_usage(get_entity_usage)457 ir_entity_usage (get_entity_usage)(const ir_entity *ent)
458 {
459 return _get_entity_usage(ent);
460 }
461
462 void (set_entity_usage)(ir_entity *ent, ir_entity_usage flags)
463 {
464 _set_entity_usage(ent, flags);
465 }
466
get_atomic_ent_value(const ir_entity * entity)467 ir_node *get_atomic_ent_value(const ir_entity *entity)
468 {
469 ir_initializer_t *initializer = get_entity_initializer(entity);
470
471 assert(entity && is_atomic_entity(entity));
472 if (initializer == NULL) {
473 ir_type *type = get_entity_type(entity);
474 return new_r_Unknown(get_const_code_irg(), get_type_mode(type));
475 }
476
477 switch (get_initializer_kind(initializer)) {
478 case IR_INITIALIZER_NULL: {
479 ir_type *type = get_entity_type(entity);
480 ir_mode *mode = get_type_mode(type);
481 return new_r_Const(get_const_code_irg(), get_mode_null(mode));
482 }
483 case IR_INITIALIZER_TARVAL: {
484 ir_tarval *tv = get_initializer_tarval_value(initializer);
485 return new_r_Const(get_const_code_irg(), tv);
486 }
487 case IR_INITIALIZER_CONST:
488 return get_initializer_const_value(initializer);
489 case IR_INITIALIZER_COMPOUND:
490 panic("compound initializer in atomic entity not allowed (%+F)", entity);
491 }
492
493 panic("invalid initializer kind (%+F)", entity);
494 }
495
set_atomic_ent_value(ir_entity * entity,ir_node * val)496 void set_atomic_ent_value(ir_entity *entity, ir_node *val)
497 {
498 ir_initializer_t *initializer;
499
500 assert(is_atomic_entity(entity));
501
502 assert(is_Dummy(val) || get_irn_mode(val) == get_type_mode(entity->type));
503 initializer = create_initializer_const(val);
504 entity->initializer = initializer;
505 }
506
is_irn_const_expression(ir_node * n)507 int is_irn_const_expression(ir_node *n)
508 {
509 /* we are in danger iff an exception will arise. TODO: be more precisely,
510 * for instance Div. will NOT rise if divisor != 0
511 */
512 if (is_binop(n) && !is_fragile_op(n))
513 return is_irn_const_expression(get_binop_left(n)) && is_irn_const_expression(get_binop_right(n));
514
515 switch (get_irn_opcode(n)) {
516 case iro_Const:
517 case iro_SymConst:
518 case iro_Unknown:
519 return 1;
520 case iro_Conv:
521 case iro_Cast:
522 return is_irn_const_expression(get_irn_n(n, 0));
523 default:
524 break;
525 }
526 return 0;
527 }
528
copy_const_value(dbg_info * dbg,ir_node * n,ir_node * block)529 ir_node *copy_const_value(dbg_info *dbg, ir_node *n, ir_node *block)
530 {
531 ir_graph *irg = get_irn_irg(block);
532 ir_node *nn;
533 ir_mode *m;
534
535 /* @@@ GL I think we should implement this using the routines from irgopt for
536 dead node elimination/inlineing. */
537
538 m = get_irn_mode(n);
539 switch (get_irn_opcode(n)) {
540 case iro_Const:
541 nn = new_rd_Const(dbg, irg, get_Const_tarval(n));
542 break;
543 case iro_SymConst:
544 nn = new_rd_SymConst(dbg, irg, get_irn_mode(n), get_SymConst_symbol(n), get_SymConst_kind(n));
545 break;
546 case iro_Add:
547 nn = new_rd_Add(dbg, block,
548 copy_const_value(dbg, get_Add_left(n), block),
549 copy_const_value(dbg, get_Add_right(n), block), m);
550 break;
551 case iro_Sub:
552 nn = new_rd_Sub(dbg, block,
553 copy_const_value(dbg, get_Sub_left(n), block),
554 copy_const_value(dbg, get_Sub_right(n), block), m);
555 break;
556 case iro_Mul:
557 nn = new_rd_Mul(dbg, block,
558 copy_const_value(dbg, get_Mul_left(n), block),
559 copy_const_value(dbg, get_Mul_right(n), block), m);
560 break;
561 case iro_And:
562 nn = new_rd_And(dbg, block,
563 copy_const_value(dbg, get_And_left(n), block),
564 copy_const_value(dbg, get_And_right(n), block), m);
565 break;
566 case iro_Or:
567 nn = new_rd_Or(dbg, block,
568 copy_const_value(dbg, get_Or_left(n), block),
569 copy_const_value(dbg, get_Or_right(n), block), m);
570 break;
571 case iro_Eor:
572 nn = new_rd_Eor(dbg, block,
573 copy_const_value(dbg, get_Eor_left(n), block),
574 copy_const_value(dbg, get_Eor_right(n), block), m);
575 break;
576 case iro_Cast:
577 nn = new_rd_Cast(dbg, block,
578 copy_const_value(dbg, get_Cast_op(n), block),
579 get_Cast_type(n));
580 break;
581 case iro_Conv:
582 nn = new_rd_Conv(dbg, block,
583 copy_const_value(dbg, get_Conv_op(n), block), m);
584 break;
585 case iro_Minus:
586 nn = new_rd_Minus(dbg, block,
587 copy_const_value(dbg, get_Minus_op(n), block), m);
588 break;
589 case iro_Not:
590 nn = new_rd_Not(dbg, block,
591 copy_const_value(dbg, get_Not_op(n), block), m);
592 break;
593 case iro_Unknown:
594 nn = new_r_Unknown(irg, m); break;
595 default:
596 panic("opcode invalid or not implemented %+F", n);
597 }
598 return nn;
599 }
600
get_initializer_kind_name(ir_initializer_kind_t ini)601 const char *get_initializer_kind_name(ir_initializer_kind_t ini)
602 {
603 #define X(a) case a: return #a
604 switch (ini) {
605 X(IR_INITIALIZER_CONST);
606 X(IR_INITIALIZER_TARVAL);
607 X(IR_INITIALIZER_NULL);
608 X(IR_INITIALIZER_COMPOUND);
609 default: return "BAD VALUE";
610 }
611 #undef X
612 }
613
614 static ir_initializer_t null_initializer = { IR_INITIALIZER_NULL };
615
get_initializer_null(void)616 ir_initializer_t *get_initializer_null(void)
617 {
618 return &null_initializer;
619 }
620
create_initializer_const(ir_node * value)621 ir_initializer_t *create_initializer_const(ir_node *value)
622 {
623 struct obstack *obst = get_irg_obstack(get_const_code_irg());
624
625 ir_initializer_t *initializer
626 = (ir_initializer_t*)OALLOC(obst, ir_initializer_const_t);
627 initializer->kind = IR_INITIALIZER_CONST;
628 initializer->consti.value = value;
629
630 return initializer;
631 }
632
create_initializer_tarval(ir_tarval * tv)633 ir_initializer_t *create_initializer_tarval(ir_tarval *tv)
634 {
635 struct obstack *obst = get_irg_obstack(get_const_code_irg());
636
637 ir_initializer_t *initializer
638 = (ir_initializer_t*)OALLOC(obst, ir_initializer_tarval_t);
639 initializer->kind = IR_INITIALIZER_TARVAL;
640 initializer->tarval.value = tv;
641
642 return initializer;
643 }
644
create_initializer_compound(size_t n_entries)645 ir_initializer_t *create_initializer_compound(size_t n_entries)
646 {
647 struct obstack *obst = get_irg_obstack(get_const_code_irg());
648
649 size_t i;
650 size_t size = sizeof(ir_initializer_compound_t)
651 + n_entries * sizeof(ir_initializer_t*)
652 - sizeof(ir_initializer_t*);
653
654 ir_initializer_t *initializer
655 = (ir_initializer_t*)obstack_alloc(obst, size);
656 initializer->kind = IR_INITIALIZER_COMPOUND;
657 initializer->compound.n_initializers = n_entries;
658
659 for (i = 0; i < n_entries; ++i) {
660 initializer->compound.initializers[i] = get_initializer_null();
661 }
662
663 return initializer;
664 }
665
get_initializer_const_value(const ir_initializer_t * initializer)666 ir_node *get_initializer_const_value(const ir_initializer_t *initializer)
667 {
668 assert(initializer->kind == IR_INITIALIZER_CONST);
669 return skip_Id(initializer->consti.value);
670 }
671
get_initializer_tarval_value(const ir_initializer_t * initializer)672 ir_tarval *get_initializer_tarval_value(const ir_initializer_t *initializer)
673 {
674 assert(initializer->kind == IR_INITIALIZER_TARVAL);
675 return initializer->tarval.value;
676 }
677
get_initializer_compound_n_entries(const ir_initializer_t * initializer)678 size_t get_initializer_compound_n_entries(const ir_initializer_t *initializer)
679 {
680 assert(initializer->kind == IR_INITIALIZER_COMPOUND);
681 return initializer->compound.n_initializers;
682 }
683
set_initializer_compound_value(ir_initializer_t * initializer,size_t index,ir_initializer_t * value)684 void set_initializer_compound_value(ir_initializer_t *initializer,
685 size_t index, ir_initializer_t *value)
686 {
687 assert(initializer->kind == IR_INITIALIZER_COMPOUND);
688 assert(index < initializer->compound.n_initializers);
689
690 initializer->compound.initializers[index] = value;
691 }
692
get_initializer_compound_value(const ir_initializer_t * initializer,size_t index)693 ir_initializer_t *get_initializer_compound_value(
694 const ir_initializer_t *initializer, size_t index)
695 {
696 assert(initializer->kind == IR_INITIALIZER_COMPOUND);
697 assert(index < initializer->compound.n_initializers);
698
699 return initializer->compound.initializers[index];
700 }
701
get_initializer_kind(const ir_initializer_t * initializer)702 ir_initializer_kind_t get_initializer_kind(const ir_initializer_t *initializer)
703 {
704 return initializer->kind;
705 }
706
check_entity_initializer(ir_entity * entity)707 static void check_entity_initializer(ir_entity *entity)
708 {
709 #ifndef NDEBUG
710 ir_initializer_t *initializer = entity->initializer;
711 ir_type *entity_tp = get_entity_type(entity);
712 switch (initializer->kind) {
713 case IR_INITIALIZER_COMPOUND:
714 assert(is_compound_type(entity_tp) || is_Array_type(entity_tp));
715 break;
716 case IR_INITIALIZER_CONST:
717 /* methods are initialized by a SymConst */
718 assert(is_atomic_type(entity_tp) || is_Method_type(entity_tp));
719 break;
720 case IR_INITIALIZER_TARVAL:
721 assert(is_atomic_type(entity_tp));
722 break;
723 case IR_INITIALIZER_NULL:
724 break;
725 }
726 #endif
727 }
728
set_entity_initializer(ir_entity * entity,ir_initializer_t * initializer)729 void set_entity_initializer(ir_entity *entity, ir_initializer_t *initializer)
730 {
731 entity->initializer = initializer;
732 check_entity_initializer(entity);
733 }
734
has_entity_initializer(const ir_entity * entity)735 int has_entity_initializer(const ir_entity *entity)
736 {
737 return entity->initializer != NULL;
738 }
739
get_entity_initializer(const ir_entity * entity)740 ir_initializer_t *get_entity_initializer(const ir_entity *entity)
741 {
742 return entity->initializer;
743 }
744
745 int (get_entity_offset)(const ir_entity *ent)
746 {
747 return _get_entity_offset(ent);
748 }
749
750 void (set_entity_offset)(ir_entity *ent, int offset)
751 {
752 _set_entity_offset(ent, offset);
753 }
754
755 unsigned char (get_entity_offset_bits_remainder)(const ir_entity *ent)
756 {
757 return _get_entity_offset_bits_remainder(ent);
758 }
759
760 void (set_entity_offset_bits_remainder)(ir_entity *ent, unsigned char offset)
761 {
762 _set_entity_offset_bits_remainder(ent, offset);
763 }
764
add_entity_overwrites(ir_entity * ent,ir_entity * overwritten)765 void add_entity_overwrites(ir_entity *ent, ir_entity *overwritten)
766 {
767 if (ent->overwrites == NULL) {
768 ent->overwrites = NEW_ARR_F(ir_entity*, 0);
769 }
770 ARR_APP1(ir_entity *, ent->overwrites, overwritten);
771 if (overwritten->overwrittenby == NULL) {
772 overwritten->overwrittenby = NEW_ARR_F(ir_entity*, 0);
773 }
774 ARR_APP1(ir_entity *, overwritten->overwrittenby, ent);
775 }
776
get_entity_n_overwrites(const ir_entity * ent)777 size_t get_entity_n_overwrites(const ir_entity *ent)
778 {
779 if (ent->overwrites == NULL)
780 return 0;
781 return ARR_LEN(ent->overwrites);
782 }
783
get_entity_overwrites_index(const ir_entity * ent,ir_entity * overwritten)784 size_t get_entity_overwrites_index(const ir_entity *ent, ir_entity *overwritten)
785 {
786 size_t i;
787 size_t n = get_entity_n_overwrites(ent);
788 for (i = 0; i < n; ++i) {
789 if (get_entity_overwrites(ent, i) == overwritten)
790 return i;
791 }
792 return (size_t)-1;
793 }
794
get_entity_overwrites(const ir_entity * ent,size_t pos)795 ir_entity *get_entity_overwrites(const ir_entity *ent, size_t pos)
796 {
797 assert(pos < get_entity_n_overwrites(ent));
798 return ent->overwrites[pos];
799 }
800
set_entity_overwrites(ir_entity * ent,size_t pos,ir_entity * overwritten)801 void set_entity_overwrites(ir_entity *ent, size_t pos, ir_entity *overwritten)
802 {
803 assert(pos < get_entity_n_overwrites(ent));
804 ent->overwrites[pos] = overwritten;
805 }
806
remove_entity_overwrites(ir_entity * ent,ir_entity * overwritten)807 void remove_entity_overwrites(ir_entity *ent, ir_entity *overwritten)
808 {
809 size_t i;
810 size_t n = get_entity_n_overwrites(ent);
811 for (i = 0; i < n; ++i) {
812 if (ent->overwrites[i] == overwritten) {
813 for (; i < n - 1; i++)
814 ent->overwrites[i] = ent->overwrites[i+1];
815 ARR_SETLEN(ir_entity*, ent->overwrites, n - 1);
816 break;
817 }
818 }
819 }
820
821
get_entity_n_overwrittenby(const ir_entity * ent)822 size_t get_entity_n_overwrittenby(const ir_entity *ent)
823 {
824 if (ent->overwrittenby == NULL)
825 return 0;
826 return ARR_LEN(ent->overwrittenby);
827 }
828
get_entity_overwrittenby_index(const ir_entity * ent,ir_entity * overwrites)829 size_t get_entity_overwrittenby_index(const ir_entity *ent,
830 ir_entity *overwrites)
831 {
832 size_t i;
833 size_t n = get_entity_n_overwrittenby(ent);
834 for (i = 0; i < n; ++i) {
835 if (get_entity_overwrittenby(ent, i) == overwrites)
836 return i;
837 }
838 return (size_t)-1;
839 }
840
get_entity_overwrittenby(const ir_entity * ent,size_t pos)841 ir_entity *get_entity_overwrittenby(const ir_entity *ent, size_t pos)
842 {
843 assert(pos < get_entity_n_overwrittenby(ent));
844 return ent->overwrittenby[pos];
845 }
846
set_entity_overwrittenby(ir_entity * ent,size_t pos,ir_entity * overwrites)847 void set_entity_overwrittenby(ir_entity *ent, size_t pos, ir_entity *overwrites)
848 {
849 assert(pos < get_entity_n_overwrittenby(ent));
850 ent->overwrittenby[pos] = overwrites;
851 }
852
remove_entity_overwrittenby(ir_entity * ent,ir_entity * overwrites)853 void remove_entity_overwrittenby(ir_entity *ent, ir_entity *overwrites)
854 {
855 size_t i;
856 size_t n = get_entity_n_overwrittenby(ent);
857 for (i = 0; i < n; ++i) {
858 if (ent->overwrittenby[i] == overwrites) {
859 for (; i < n - 1; ++i)
860 ent->overwrittenby[i] = ent->overwrittenby[i+1];
861 ARR_SETLEN(ir_entity*, ent->overwrittenby, n - 1);
862 break;
863 }
864 }
865 }
866
867 void *(get_entity_link)(const ir_entity *ent)
868 {
869 return _get_entity_link(ent);
870 }
871
872 void (set_entity_link)(ir_entity *ent, void *l)
873 {
874 _set_entity_link(ent, l);
875 }
876
877 ir_graph *(get_entity_irg)(const ir_entity *ent)
878 {
879 return _get_entity_irg(ent);
880 }
881
set_entity_irg(ir_entity * ent,ir_graph * irg)882 void set_entity_irg(ir_entity *ent, ir_graph *irg)
883 {
884 assert(is_method_entity(ent));
885 assert(get_entity_peculiarity(ent) == peculiarity_existent);
886 ent->attr.mtd_attr.irg = irg;
887 }
888
889 int (is_parameter_entity)(const ir_entity *entity)
890 {
891 return _is_parameter_entity(entity);
892 }
893
size_t(get_entity_parameter_number)894 size_t (get_entity_parameter_number)(const ir_entity *entity)
895 {
896 return _get_entity_parameter_number(entity);
897 }
898
set_entity_parameter_number(ir_entity * entity,size_t n)899 void set_entity_parameter_number(ir_entity *entity, size_t n)
900 {
901 assert(is_parameter_entity(entity));
902 entity->attr.parameter.number = n;
903 }
904
get_entity_vtable_number(const ir_entity * ent)905 unsigned get_entity_vtable_number(const ir_entity *ent)
906 {
907 assert(is_method_entity((ir_entity *)ent));
908 return ent->attr.mtd_attr.vtable_number;
909 }
910
set_entity_vtable_number(ir_entity * ent,unsigned vtable_number)911 void set_entity_vtable_number(ir_entity *ent, unsigned vtable_number)
912 {
913 assert(is_method_entity(ent));
914 ent->attr.mtd_attr.vtable_number = vtable_number;
915 }
916
is_unknown_entity(const ir_entity * entity)917 int is_unknown_entity(const ir_entity *entity)
918 {
919 return entity->entity_kind == IR_ENTITY_UNKNOWN;
920 }
921
922 int (is_entity)(const void *thing)
923 {
924 return _is_entity(thing);
925 }
926
is_atomic_entity(const ir_entity * ent)927 int is_atomic_entity(const ir_entity *ent)
928 {
929 ir_type *t = get_entity_type(ent);
930 const tp_op *op = get_type_tpop(t);
931 return (op == type_primitive || op == type_pointer ||
932 op == type_enumeration || op == type_method);
933 }
934
is_compound_entity(const ir_entity * ent)935 int is_compound_entity(const ir_entity *ent)
936 {
937 ir_type *t = get_entity_type(ent);
938 const tp_op *op = get_type_tpop(t);
939 return (op == type_class || op == type_struct ||
940 op == type_array || op == type_union);
941 }
942
is_method_entity(const ir_entity * ent)943 int is_method_entity(const ir_entity *ent)
944 {
945 ir_type *t = get_entity_type(ent);
946 return is_Method_type(t);
947 }
948
ir_visited_t(get_entity_visited)949 ir_visited_t (get_entity_visited)(const ir_entity *ent)
950 {
951 return _get_entity_visited(ent);
952 }
953
954 void (set_entity_visited)(ir_entity *ent, ir_visited_t num)
955 {
956 _set_entity_visited(ent, num);
957 }
958
959 void (mark_entity_visited)(ir_entity *ent)
960 {
961 _mark_entity_visited(ent);
962 }
963
964 int (entity_visited)(const ir_entity *ent)
965 {
966 return _entity_visited(ent);
967 }
968
969 int (entity_not_visited)(const ir_entity *ent)
970 {
971 return _entity_not_visited(ent);
972 }
973
get_entity_additional_properties(const ir_entity * ent)974 mtp_additional_properties get_entity_additional_properties(const ir_entity *ent)
975 {
976 assert(is_method_entity(ent));
977 return ent->attr.mtd_attr.properties;
978 }
979
set_entity_additional_properties(ir_entity * ent,mtp_additional_properties property_mask)980 void set_entity_additional_properties(ir_entity *ent, mtp_additional_properties property_mask)
981 {
982 assert(is_method_entity(ent));
983 /* you mustn't set less properties than the entities type */
984 assert((get_method_additional_properties(get_entity_type(ent)) & ~property_mask) == 0);
985
986 /* do not allow to set the mtp_property_inherited flag or
987 * the automatic inheritance of flags will not work */
988 ent->attr.mtd_attr.properties = property_mask;
989 }
990
add_entity_additional_properties(ir_entity * ent,mtp_additional_properties properties)991 void add_entity_additional_properties(ir_entity *ent, mtp_additional_properties properties)
992 {
993 assert(is_method_entity(ent));
994
995 /* do not allow to set the mtp_property_inherited flag or
996 * the automatic inheritance of flags will not work */
997 ent->attr.mtd_attr.properties |= properties;
998 }
999
1000 ir_type *(get_entity_repr_class)(const ir_entity *ent)
1001 {
1002 return _get_entity_repr_class(ent);
1003 }
1004
1005 dbg_info *(get_entity_dbg_info)(const ir_entity *ent)
1006 {
1007 return _get_entity_dbg_info(ent);
1008 }
1009
1010 void (set_entity_dbg_info)(ir_entity *ent, dbg_info *db)
1011 {
1012 _set_entity_dbg_info(ent, db);
1013 }
1014
entity_is_externally_visible(const ir_entity * entity)1015 int entity_is_externally_visible(const ir_entity *entity)
1016 {
1017 return get_entity_visibility(entity) != ir_visibility_local
1018 || (get_entity_linkage(entity) & IR_LINKAGE_HIDDEN_USER);
1019 }
1020
entity_has_definition(const ir_entity * entity)1021 int entity_has_definition(const ir_entity *entity)
1022 {
1023 if (is_method_entity(entity)) {
1024 return get_entity_irg(entity) != NULL
1025 && (get_entity_linkage(entity) & IR_LINKAGE_NO_CODEGEN) == 0;
1026 } else {
1027 return entity->initializer != NULL;
1028 }
1029 }
1030
ir_init_entity(ir_prog * irp)1031 void ir_init_entity(ir_prog *irp)
1032 {
1033 ident *id = new_id_from_str(UNKNOWN_ENTITY_NAME);
1034 irp->unknown_entity = intern_new_entity(NULL, IR_ENTITY_UNKNOWN, id,
1035 irp->unknown_type, NULL);
1036 set_entity_visibility(irp->unknown_entity, ir_visibility_external);
1037 set_entity_ld_ident(irp->unknown_entity, id);
1038 hook_new_entity(irp->unknown_entity);
1039 }
1040
ir_finish_entity(ir_prog * irp)1041 void ir_finish_entity(ir_prog *irp)
1042 {
1043 free_entity(irp->unknown_entity);
1044 }
1045
get_entity_allocation(const ir_entity * entity)1046 ir_allocation get_entity_allocation(const ir_entity *entity)
1047 {
1048 return (ir_allocation)entity->allocation;
1049 }
1050
set_entity_allocation(ir_entity * entity,ir_allocation allocation)1051 void set_entity_allocation(ir_entity *entity, ir_allocation allocation)
1052 {
1053 entity->allocation = allocation;
1054 }
1055
get_entity_peculiarity(const ir_entity * entity)1056 ir_peculiarity get_entity_peculiarity(const ir_entity *entity)
1057 {
1058 return (ir_peculiarity)entity->peculiarity;
1059 }
1060
set_entity_peculiarity(ir_entity * entity,ir_peculiarity peculiarity)1061 void set_entity_peculiarity(ir_entity *entity, ir_peculiarity peculiarity)
1062 {
1063 entity->peculiarity = peculiarity;
1064 }
1065
set_entity_final(ir_entity * entity,int final)1066 void set_entity_final(ir_entity *entity, int final)
1067 {
1068 entity->final = final;
1069 }
1070
is_entity_final(const ir_entity * entity)1071 int is_entity_final(const ir_entity *entity)
1072 {
1073 return entity->final;
1074 }
1075