4 * file type.c - implementation of the datastructure to hold
7 * (C) 2001 by Universitaet Karlsruhe
9 * Martin Trapp, Christian Schaefer, Goetz Lindenmaier
12 * This module supplies a datastructure to represent all types
13 * known in the compiled program. This includes types specified
14 * in the program as well as types defined by the language. In the
15 * view of the intermediate representation there is no difference
16 * between these types.
18 * There exist several kinds of types, arranged by the structure of
19 * the type. A type is described by a set of attributes. Some of
20 * these attributes are common to all types, others depend on the
23 * Types are different from the modes defined in irmode: Types are
24 * on the level of the programming language, modes at the level of
25 * the target processor.
35 # include "typegmod_t.h"
38 /*******************************************************************/
40 /*******************************************************************/
42 unsigned long type_visited;
45 new_type(tp_op *type_op, ir_mode *mode, ident* name) {
49 assert(type_op != type_id);
51 node_size = offsetof (type, attr) + type_op->attr_size;
52 res = (type *) xmalloc (node_size);
53 add_irp_type(res); /* Remember the new type global. */
56 res->type_op = type_op;
59 res->state = layout_undefined;
67 void free_type_attrs(type *tp) {
68 switch(get_type_tpop_code(tp)) {
69 case tpo_class: { free_class_attrs(tp); } break;
70 case tpo_struct: { free_struct_attrs(tp); } break;
71 case tpo_method: { free_method_attrs(tp); } break;
72 case tpo_union: { free_union_attrs(tp); } break;
73 case tpo_array: { free_array_attrs(tp); } break;
74 case tpo_enumeration: { free_enumeration_attrs(tp); } break;
75 case tpo_pointer: { free_pointer_attrs(tp); } break;
76 case tpo_primitive: { free_primitive_attrs(tp); } break;
81 /* set/get the link field */
82 void *get_type_link(type *tp)
88 void set_type_link(type *tp, void *l)
94 tp_op* get_type_tpop(type *tp) {
99 ident* get_type_tpop_nameid(type *tp) {
101 return tp->type_op->name;
103 const char* get_type_tpop_name(type *tp) {
105 return id_to_str(tp->type_op->name);
107 tp_opcode get_type_tpop_code(type *tp) {
109 return tp->type_op->code;
111 ir_mode* get_type_mode(type *tp) {
115 void set_type_mode(type *tp, ir_mode* m) {
118 /* For pointer and primitive size depends on the mode. */
119 if ((tp->type_op == type_pointer) || (tp->type_op == type_primitive))
120 tp->size == get_mode_size(m);
122 ident* get_type_nameid(type *tp) {
126 void set_type_nameid(type *tp, ident* id) {
130 const char* get_type_name(type *tp) {
132 return id_to_str(tp->name);
134 int get_type_size(type *tp) {
140 set_type_size(type *tp, int size) {
142 /* For pointer and primitive size depends on the mode. */
143 if ((tp->type_op != type_pointer) && (tp->type_op != type_primitive))
148 get_type_state(type *tp) {
154 set_type_state(type *tp, type_state state) {
156 /* For pointer and primitive always fixed. */
157 if ((tp->type_op != type_pointer) && (tp->type_op != type_primitive))
161 unsigned long get_type_visited(type *tp) {
166 void set_type_visited(type *tp, unsigned long num) {
170 /* Sets visited field in type to type_visited. */
171 void mark_type_visited(type *tp) {
173 assert(tp->visit < type_visited);
174 tp->visit = type_visited;
177 int is_type (void *thing) {
179 if (get_kind(thing) == k_type)
185 /*******************************************************************/
187 /*******************************************************************/
189 /* create a new class type */
190 type *new_type_class (ident *name) {
193 res = new_type(type_class, NULL, name);
195 res->attr.ca.members = NEW_ARR_F (entity *, 1);
196 res->attr.ca.subtypes = NEW_ARR_F (type *, 1);
197 res->attr.ca.supertypes = NEW_ARR_F (type *, 1);
201 inline void free_class_attrs(type *clss) {
202 assert(clss && (clss->type_op == type_class));
203 DEL_ARR_F(clss->attr.ca.members);
204 DEL_ARR_F(clss->attr.ca.subtypes);
205 DEL_ARR_F(clss->attr.ca.supertypes);
207 /* manipulate private fields of class type */
208 void add_class_member (type *clss, entity *member) {
209 assert(clss && (clss->type_op == type_class));
210 ARR_APP1 (entity *, clss->attr.ca.members, member);
212 int get_class_n_member (type *clss) {
213 assert(clss && (clss->type_op == type_class));
214 return (ARR_LEN (clss->attr.ca.members))-1;
216 entity *get_class_member (type *clss, int pos) {
217 assert(clss && (clss->type_op == type_class));
218 return clss->attr.ca.members[pos+1];
220 void set_class_member (type *clss, entity *member, int pos) {
221 assert(clss && (clss->type_op == type_class));
222 clss->attr.ca.members[pos+1] = member;
224 void remove_class_member(type *clss, entity *member) {
226 assert(clss && (clss->type_op == type_class));
227 for (i = 1; i < (ARR_LEN (clss->attr.ca.members))-1; i++)
228 if (clss->attr.ca.members[i+1] == member) {
229 for(i++; i < (ARR_LEN (clss->attr.ca.members)) - 1; i++)
230 clss->attr.ca.members[i] = clss->attr.ca.members[i + 1];
231 ARR_SETLEN(entity*, clss->attr.ca.members, ARR_LEN(clss->attr.ca.members) - 1);
236 void add_class_subtype (type *clss, type *subtype) {
238 assert(clss && (clss->type_op == type_class));
239 ARR_APP1 (type *, clss->attr.ca.subtypes, subtype);
240 for (i = 0; i < get_class_n_subtype(subtype); i++)
241 if (get_class_subtype(subtype, i) == clss)
242 /* Class already registered */
244 ARR_APP1 (type *, subtype->attr.ca.supertypes, clss);
246 int get_class_n_subtype (type *clss) {
247 assert(clss && (clss->type_op == type_class));
248 return (ARR_LEN (clss->attr.ca.subtypes))-1;
250 type *get_class_subtype (type *clss, int pos) {
251 assert(clss && (clss->type_op == type_class));
252 return clss->attr.ca.subtypes[pos+1] = skip_tid(clss->attr.ca.subtypes[pos+1]);
254 void set_class_subtype (type *clss, type *subtype, int pos) {
255 assert(clss && (clss->type_op == type_class));
256 clss->attr.ca.subtypes[pos+1] = subtype;
258 void remove_class_subtype(type *clss, type *subtype) {
260 assert(clss && (clss->type_op == type_class));
261 for (i = 1; i < (ARR_LEN (clss->attr.ca.subtypes))-1; i++)
262 if (clss->attr.ca.subtypes[i+1] == subtype) {
263 for(i++; i < (ARR_LEN (clss->attr.ca.subtypes))-1; i++)
264 clss->attr.ca.subtypes[i] = clss->attr.ca.subtypes[i+1];
265 ARR_SETLEN(entity*, clss->attr.ca.subtypes, ARR_LEN(clss->attr.ca.subtypes) - 1);
270 void add_class_supertype (type *clss, type *supertype) {
272 assert(clss && (clss->type_op == type_class));
273 assert(supertype && (supertype -> type_op == type_class));
274 ARR_APP1 (type *, clss->attr.ca.supertypes, supertype);
275 for (i = 0; i < get_class_n_supertype(supertype); i++)
276 if (get_class_supertype(supertype, i) == clss)
277 /* Class already registered */
279 ARR_APP1 (type *, supertype->attr.ca.subtypes, clss);
281 int get_class_n_supertype (type *clss) {
282 assert(clss && (clss->type_op == type_class));
283 return (ARR_LEN (clss->attr.ca.supertypes))-1;
285 type *get_class_supertype (type *clss, int pos) {
286 assert(clss && (clss->type_op == type_class));
287 return clss->attr.ca.supertypes[pos+1] = skip_tid(clss->attr.ca.supertypes[pos+1]);
289 void set_class_supertype (type *clss, type *supertype, int pos) {
290 assert(clss && (clss->type_op == type_class));
291 clss->attr.ca.supertypes[pos+1] = supertype;
293 void remove_class_supertype(type *clss, type *supertype) {
295 assert(clss && (clss->type_op == type_class));
296 for (i = 1; i < (ARR_LEN (clss->attr.ca.supertypes))-1; i++)
297 if (clss->attr.ca.supertypes[i+1] == supertype) {
298 for(i++; i < (ARR_LEN (clss->attr.ca.supertypes))-1; i++)
299 clss->attr.ca.supertypes[i] = clss->attr.ca.supertypes[i+1];
300 ARR_SETLEN(entity*, clss->attr.ca.supertypes, ARR_LEN(clss->attr.ca.supertypes) - 1);
305 bool is_class_type(type *clss) {
307 if (clss->type_op == type_class) return 1; else return 0;
310 /*******************************************************************/
312 /*******************************************************************/
314 /* create a new type struct */
315 type *new_type_struct (ident *name) {
317 res = new_type(type_struct, NULL, name);
318 res->attr.sa.members = NEW_ARR_F (entity *, 1);
321 inline void free_struct_attrs (type *strct) {
322 assert(strct && (strct->type_op == type_struct));
323 DEL_ARR_F(strct->attr.sa.members);
325 /* manipulate private fields of struct */
326 void add_struct_member (type *strct, entity *member) {
327 assert(strct && (strct->type_op == type_struct));
328 ARR_APP1 (entity *, strct->attr.sa.members, member);
330 int get_struct_n_member (type *strct) {
331 assert(strct && (strct->type_op == type_struct));
332 return (ARR_LEN (strct->attr.sa.members))-1;
334 entity *get_struct_member (type *strct, int pos) {
335 assert(strct && (strct->type_op == type_struct));
336 return strct->attr.sa.members[pos+1];
338 void set_struct_member (type *strct, int pos, entity *member) {
339 assert(strct && (strct->type_op == type_struct));
340 strct->attr.sa.members[pos+1] = member;
342 void remove_struct_member(type *strct, entity *member) {
344 assert(strct && (strct->type_op == type_struct));
345 for (i = 1; i < (ARR_LEN (strct->attr.sa.members))-1; i++)
346 if (strct->attr.sa.members[i+1] == member) {
347 for(i++; i < (ARR_LEN (strct->attr.sa.members))-1; i++)
348 strct->attr.sa.members[i] = strct->attr.sa.members[i+1];
349 ARR_SETLEN(entity*, strct->attr.sa.members, ARR_LEN(strct->attr.sa.members) - 1);
354 bool is_struct_type(type *strct) {
356 if (strct->type_op == type_struct) return 1; else return 0;
359 /*******************************************************************/
361 /*******************************************************************/
363 /* Create a new method type.
364 N_param is the number of parameters, n_res the number of results. */
365 type *new_type_method (ident *name, int n_param, int n_res) {
367 res = new_type(type_method, NULL, name);
368 res->attr.ma.n_params = n_param;
369 res->attr.ma.param_type = (type **) xmalloc (sizeof (type *) * n_param);
370 res->attr.ma.n_res = n_res;
371 res->attr.ma.res_type = (type **) xmalloc (sizeof (type *) * n_res);
374 inline void free_method_attrs(type *method) {
375 assert(method && (method->type_op == type_method));
376 free(method->attr.ma.param_type);
377 free(method->attr.ma.res_type);
379 /* manipulate private fields of method. */
380 int get_method_n_params (type *method) {
381 assert(method && (method->type_op == type_method));
382 return method->attr.ma.n_params;
384 type *get_method_param_type(type *method, int pos) {
385 assert(method && (method->type_op == type_method));
386 return method->attr.ma.param_type[pos] = skip_tid(method->attr.ma.param_type[pos]);
388 void set_method_param_type(type *method, int pos, type* type) {
389 assert(method && (method->type_op == type_method));
390 method->attr.ma.param_type[pos] = type;
393 int get_method_n_res (type *method) {
394 assert(method && (method->type_op == type_method));
395 return method->attr.ma.n_res;
397 type *get_method_res_type(type *method, int pos) {
398 assert(method && (method->type_op == type_method));
399 return method->attr.ma.res_type[pos] = skip_tid(method->attr.ma.res_type[pos]);
401 void set_method_res_type(type *method, int pos, type* type) {
402 assert(method && (method->type_op == type_method));
403 method->attr.ma.res_type[pos] = type;
407 bool is_method_type (type *method) {
409 if (method->type_op == type_method) return 1; else return 0;
413 /*******************************************************************/
415 /*******************************************************************/
417 /* create a new type uni */
418 type *new_type_uni (ident *name) {
420 res = new_type(type_union, NULL, name);
421 /*res->attr.ua.unioned_type = (type **) xmalloc (sizeof (type *) * n_types);
422 res->attr.ua.delim_names = (ident **) xmalloc (sizeof (ident *) * n_types); */
423 res->attr.ua.members = NEW_ARR_F (entity *, 1);
426 inline void free_union_attrs (type *uni) {
427 assert(uni && (uni->type_op == type_union));
428 DEL_ARR_F(uni->attr.ua.members);
430 /* manipulate private fields of struct */
432 int get_union_n_types (type *uni) {
433 assert(uni && (uni->type_op == type_union));
434 return uni->attr.ua.n_types;
436 type *get_union_unioned_type (type *uni, int pos) {
437 assert(uni && (uni->type_op == type_union));
438 return uni->attr.ua.unioned_type[pos] = skip_tid(uni->attr.ua.unioned_type[pos]);
440 void set_union_unioned_type (type *uni, int pos, type *type) {
441 assert(uni && (uni->type_op == type_union));
442 uni->attr.ua.unioned_type[pos] = type;
444 ident *get_union_delim_nameid (type *uni, int pos) {
445 assert(uni && (uni->type_op == type_union));
446 return uni->attr.ua.delim_names[pos];
448 const char *get_union_delim_name (type *uni, int pos) {
449 assert(uni && (uni->type_op == type_union));
450 return id_to_str(uni->attr.ua.delim_names[pos]);
452 void set_union_delim_nameid (type *uni, int pos, ident *id) {
453 assert(uni && (uni->type_op == type_union));
454 uni->attr.ua.delim_names[pos] = id;
457 int get_union_n_members (type *uni) {
458 assert(uni && (uni->type_op == type_union));
459 return (ARR_LEN (uni->attr.ua.members))-1;
461 void add_union_member (type *uni, entity *member) {
462 assert(uni && (uni->type_op == type_union));
463 ARR_APP1 (entity *, uni->attr.ua.members, member);
465 entity *get_union_member (type *uni, int pos) {
466 assert(uni && (uni->type_op == type_union));
467 return uni->attr.ua.members[pos+1];
469 void set_union_member (type *uni, int pos, entity *member) {
470 assert(uni && (uni->type_op == type_union));
471 uni->attr.ua.members[pos+1] = member;
473 void remove_union_member(type *uni, entity *member) {
475 assert(uni && (uni->type_op == type_union));
476 for (i = 1; i < (ARR_LEN (uni->attr.ua.members))-1; i++)
477 if (uni->attr.ua.members[i+1] == member) {
478 for(i++; i < (ARR_LEN (uni->attr.ua.members))-1; i++)
479 uni->attr.ua.members[i] = uni->attr.ua.members[i+1];
480 ARR_SETLEN(entity*, uni->attr.ua.members, ARR_LEN(uni->attr.ua.members) - 1);
486 bool is_union_type (type *uni) {
488 if (uni->type_op == type_union) return 1; else return 0;
491 /*******************************************************************/
493 /*******************************************************************/
496 /* create a new type array -- set dimension sizes independently */
497 type *new_type_array (ident *name, int n_dimensions,
498 type *element_type) {
500 res = new_type(type_array, NULL, name);
501 res->attr.aa.n_dimensions = n_dimensions;
502 res->attr.aa.lower_bound = (ir_node **) xmalloc (sizeof (ir_node *) * n_dimensions);
503 res->attr.aa.upper_bound = (ir_node **) xmalloc (sizeof (ir_node *) * n_dimensions);
504 res->attr.aa.element_type = element_type;
505 new_entity(res, name, element_type);
508 inline void free_array_attrs (type *array) {
509 assert(array && (array->type_op == type_array));
510 free(array->attr.aa.lower_bound);
511 free(array->attr.aa.upper_bound);
514 /* manipulate private fields of array type */
515 int get_array_n_dimensions (type *array) {
516 assert(array && (array->type_op == type_array));
517 return array->attr.aa.n_dimensions;
519 void set_array_bounds (type *array, int dimension, ir_node * lower_bound,
520 ir_node * upper_bound) {
521 assert(array && (array->type_op == type_array));
522 array->attr.aa.lower_bound[dimension] = lower_bound;
523 array->attr.aa.upper_bound[dimension] = upper_bound;
525 void set_array_lower_bound (type *array, int dimension, ir_node * lower_bound) {
526 assert(array && (array->type_op == type_array));
527 array->attr.aa.lower_bound[dimension] = lower_bound;
529 void set_array_upper_bound (type *array, int dimension, ir_node * upper_bound) {
530 assert(array && (array->type_op == type_array));
531 array->attr.aa.upper_bound[dimension] = upper_bound;
533 ir_node * get_array_lower_bound (type *array, int dimension) {
534 assert(array && (array->type_op == type_array));
535 return array->attr.aa.lower_bound[dimension];
537 ir_node * get_array_upper_bound (type *array, int dimension) {
538 assert(array && (array->type_op == type_array));
539 return array->attr.aa.upper_bound[dimension];
541 void set_array_element_type (type *array, type *type) {
542 assert(array && (array->type_op == type_array));
543 array->attr.aa.element_type = type;
545 type *get_array_element_type (type *array) {
546 assert(array && (array->type_op == type_array));
547 return array->attr.aa.element_type = skip_tid(array->attr.aa.element_type);
549 void set_array_element_entity (type *array, entity *ent) {
550 assert(array && (array->type_op == type_array));
551 array->attr.aa.element_ent = ent;
553 entity *get_array_element_entity (type *array) {
554 assert(array && (array->type_op == type_array));
555 return array->attr.aa.element_ent;
559 bool is_array_type (type *array) {
561 if (array->type_op == type_array) return 1; else return 0;
564 /*******************************************************************/
565 /** TYPE_ENUMERATION **/
566 /*******************************************************************/
568 /* create a new type enumeration -- set the enumerators independently */
569 type *new_type_enumeration (ident *name, int n_enums) {
571 res = new_type(type_enumeration, NULL, name);
572 res->attr.ea.n_enums = n_enums;
573 res->attr.ea.enumer = (tarval **) xmalloc (sizeof (tarval *) * n_enums);
574 res->attr.ea.enum_nameid = (ident **) xmalloc (sizeof (ident *) * n_enums);
577 inline void free_enumeration_attrs(type *enumeration) {
578 assert(enumeration && (enumeration->type_op == type_enumeration));
579 free(enumeration->attr.ea.enumer);
580 free(enumeration->attr.ea.enum_nameid);
583 /* manipulate fields of enumeration type. */
584 int get_enumeration_n_enums (type *enumeration) {
585 assert(enumeration && (enumeration->type_op == type_enumeration));
586 return enumeration->attr.ea.n_enums;
588 void set_enumeration_enum (type *enumeration, int pos, tarval *con) {
589 assert(enumeration && (enumeration->type_op == type_enumeration));
590 enumeration->attr.ea.enumer[pos] = con;
592 tarval *get_enumeration_enum (type *enumeration, int pos) {
593 assert(enumeration && (enumeration->type_op == type_enumeration));
594 return enumeration->attr.ea.enumer[pos];
596 void set_enumeration_nameid (type *enumeration, int pos, ident *id) {
597 assert(enumeration && (enumeration->type_op == type_enumeration));
598 enumeration->attr.ea.enum_nameid[pos] = id;
600 ident *get_enumeration_nameid (type *enumeration, int pos) {
601 assert(enumeration && (enumeration->type_op == type_enumeration));
602 return enumeration->attr.ea.enum_nameid[pos];
604 const char *get_enumeration_name(type *enumeration, int pos) {
605 assert(enumeration && (enumeration->type_op == type_enumeration));
606 return id_to_str(enumeration->attr.ea.enum_nameid[pos]);
610 bool is_enumeration_type (type *enumeration) {
612 if (enumeration->type_op == type_enumeration) return 1; else return 0;
615 /*******************************************************************/
617 /*******************************************************************/
619 /* Create a new type pointer */
620 type *new_type_pointer (ident *name, type *points_to) {
622 res = new_type(type_pointer, mode_p, name);
623 res->attr.pa.points_to = points_to;
624 res->size = get_mode_size(res->mode);
625 res->state = layout_fixed;
628 inline void free_pointer_attrs (type *pointer) {
629 assert(pointer && (pointer->type_op == type_pointer));
631 /* manipulate fields of type_pointer */
632 void set_pointer_points_to_type (type *pointer, type *type) {
633 assert(pointer && (pointer->type_op == type_pointer));
634 pointer->attr.pa.points_to = type;
636 type *get_pointer_points_to_type (type *pointer) {
637 assert(pointer && (pointer->type_op == type_pointer));
638 return pointer->attr.pa.points_to = skip_tid(pointer->attr.pa.points_to);
642 bool is_pointer_type (type *pointer) {
644 if (pointer->type_op == type_pointer) return 1; else return 0;
648 /*******************************************************************/
649 /** TYPE_PRIMITIVE **/
650 /*******************************************************************/
652 /* create a new type primitive */
653 type *new_type_primitive (ident *name, ir_mode *mode) {
655 res = new_type(type_primitive, mode, name);
656 res->size = get_mode_size(mode);
657 res->state = layout_fixed;
660 inline void free_primitive_attrs (type *primitive) {
661 assert(primitive && (primitive->type_op == type_primitive));
665 bool is_primitive_type (type *primitive) {
667 if (primitive->type_op == type_primitive) return 1; else return 0;