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.
37 /*******************************************************************/
39 /*******************************************************************/
41 unsigned long type_visited;
44 new_type(tp_op *type_op, ir_mode *mode, ident* name) {
47 int node_size = offsetof (type, attr) + type_op->attr_size;
48 res = (type *) xmalloc (node_size);
49 add_irp_type(res); /* Remember the new type global. */
52 res->type_op = type_op;
55 res->state = layout_undefined;
62 tp_op* get_type_tpop(type *tp) {
67 ident* get_type_tpop_nameid(type *tp) {
69 return tp->type_op->name;
71 const char* get_type_tpop_name(type *tp) {
73 return id_to_str(tp->type_op->name);
75 tp_opcode get_type_tpop_code(type *tp) {
77 return tp->type_op->code;
79 ir_mode* get_type_mode(type *tp) {
83 void set_type_mode(type *tp, ir_mode* m) {
86 /* For pointer and primitive size depends on the mode. */
87 if ((tp->type_op == type_pointer) || (tp->type_op == type_primitive))
88 tp->size == get_mode_size(m);
90 ident* get_type_nameid(type *tp) {
94 void set_type_nameid(type *tp, ident* id) {
98 const char* get_type_name(type *tp) {
100 return id_to_str(tp->name);
102 int get_type_size(type *tp) {
108 set_type_size(type *tp, int size) {
110 /* For pointer and primitive size depends on the mode. */
111 if ((tp->type_op != type_pointer) && (tp->type_op != type_primitive))
116 get_type_state(type *tp) {
122 set_type_state(type *tp, type_state state) {
124 /* For pointer and primitive always fixed. */
125 if ((tp->type_op != type_pointer) && (tp->type_op != type_primitive))
129 unsigned long get_type_visited(type *tp) {
134 void set_type_visited(type *tp, unsigned long num) {
138 /* Sets visited field in type to type_visited. */
139 void mark_type_visited(type *tp) {
141 assert(tp->visit < type_visited);
142 tp->visit = type_visited;
145 int is_type (void *thing) {
147 if (get_kind(thing) == k_type)
153 /*******************************************************************/
155 /*******************************************************************/
157 /* create a new class type */
158 type *new_type_class (ident *name) {
161 res = new_type(type_class, NULL, name);
163 res->attr.ca.members = NEW_ARR_F (entity *, 1);
164 res->attr.ca.subtypes = NEW_ARR_F (type *, 1);
165 res->attr.ca.supertypes = NEW_ARR_F (type *, 1);
169 /* manipulate private fields of class type */
170 void add_class_member (type *clss, entity *member) {
171 assert(clss && (clss->type_op == type_class));
172 ARR_APP1 (entity *, clss->attr.ca.members, member);
174 int get_class_n_member (type *clss) {
175 assert(clss && (clss->type_op == type_class));
176 return (ARR_LEN (clss->attr.ca.members))-1;
178 entity *get_class_member (type *clss, int pos) {
179 assert(clss && (clss->type_op == type_class));
180 return clss->attr.ca.members[pos+1];
182 void set_class_member (type *clss, entity *member, int pos) {
183 assert(clss && (clss->type_op == type_class));
184 clss->attr.ca.members[pos+1] = member;
186 void remove_class_member(type *clss, entity *member) {
188 assert(clss && (clss->type_op == type_class));
189 for (i = 1; i < (ARR_LEN (clss->attr.ca.members))-1; i++)
190 if (clss->attr.ca.members[i+1] == member) {
191 for(i++; i < (ARR_LEN (clss->attr.ca.members)) - 1; i++)
192 clss->attr.ca.members[i] = clss->attr.ca.members[i + 1];
193 ARR_SETLEN(entity*, clss->attr.ca.members, ARR_LEN(clss->attr.ca.members) - 1);
198 void add_class_subtype (type *clss, type *subtype) {
199 assert(clss && (clss->type_op == type_class));
200 ARR_APP1 (type *, clss->attr.ca.subtypes, subtype);
201 ARR_APP1 (type *, subtype->attr.ca.supertypes, clss);
203 int get_class_n_subtype (type *clss) {
204 assert(clss && (clss->type_op == type_class));
205 return (ARR_LEN (clss->attr.ca.subtypes))-1;
207 type *get_class_subtype (type *clss, int pos) {
208 assert(clss && (clss->type_op == type_class));
209 return clss->attr.ca.subtypes[pos+1];
211 void set_class_subtype (type *clss, type *subtype, int pos) {
212 assert(clss && (clss->type_op == type_class));
213 clss->attr.ca.subtypes[pos+1] = subtype;
215 void remove_class_subtype(type *clss, type *subtype) {
217 assert(clss && (clss->type_op == type_class));
218 for (i = 1; i < (ARR_LEN (clss->attr.ca.subtypes))-1; i++)
219 if (clss->attr.ca.subtypes[i+1] == subtype) {
220 for(i++; i < (ARR_LEN (clss->attr.ca.subtypes))-1; i++)
221 clss->attr.ca.subtypes[i] = clss->attr.ca.subtypes[i+1];
222 ARR_SETLEN(entity*, clss->attr.ca.subtypes, ARR_LEN(clss->attr.ca.subtypes) - 1);
227 void add_class_supertype (type *clss, type *supertype) {
228 assert(clss && (clss->type_op == type_class));
229 ARR_APP1 (type *, clss->attr.ca.supertypes, supertype);
230 ARR_APP1 (type *, supertype->attr.ca.subtypes, clss);
232 int get_class_n_supertype (type *clss) {
233 assert(clss && (clss->type_op == type_class));
234 return (ARR_LEN (clss->attr.ca.supertypes))-1;
236 type *get_class_supertype (type *clss, int pos) {
237 assert(clss && (clss->type_op == type_class));
238 return clss->attr.ca.supertypes[pos+1];
240 void set_class_supertype (type *clss, type *supertype, int pos) {
241 assert(clss && (clss->type_op == type_class));
242 clss->attr.ca.supertypes[pos+1] = supertype;
244 void remove_class_supertype(type *clss, type *supertype) {
246 assert(clss && (clss->type_op == type_class));
247 for (i = 1; i < (ARR_LEN (clss->attr.ca.supertypes))-1; i++)
248 if (clss->attr.ca.supertypes[i+1] == supertype) {
249 for(i++; i < (ARR_LEN (clss->attr.ca.supertypes))-1; i++)
250 clss->attr.ca.supertypes[i] = clss->attr.ca.supertypes[i+1];
251 ARR_SETLEN(entity*, clss->attr.ca.supertypes, ARR_LEN(clss->attr.ca.supertypes) - 1);
256 bool is_class_type(type *clss) {
258 if (clss->type_op == type_class) return 1; else return 0;
261 /*******************************************************************/
263 /*******************************************************************/
265 /* create a new type struct */
266 type *new_type_struct (ident *name) {
268 res = new_type(type_struct, NULL, name);
269 res->attr.sa.members = NEW_ARR_F (entity *, 1);
272 /* manipulate private fields of struct */
273 void add_struct_member (type *strct, entity *member) {
274 assert(strct && (strct->type_op == type_struct));
275 ARR_APP1 (entity *, strct->attr.sa.members, member);
277 int get_struct_n_member (type *strct) {
278 assert(strct && (strct->type_op == type_struct));
279 return (ARR_LEN (strct->attr.sa.members))-1;
281 entity *get_struct_member (type *strct, int pos) {
282 assert(strct && (strct->type_op == type_struct));
283 return strct->attr.sa.members[pos+1];
285 void set_struct_member (type *strct, int pos, entity *member) {
286 assert(strct && (strct->type_op == type_struct));
287 strct->attr.sa.members[pos+1] = member;
289 void remove_struct_member(type *strct, entity *member) {
291 assert(strct && (strct->type_op == type_struct));
292 for (i = 1; i < (ARR_LEN (strct->attr.sa.members))-1; i++)
293 if (strct->attr.sa.members[i+1] == member) {
294 for(i++; i < (ARR_LEN (strct->attr.sa.members))-1; i++)
295 strct->attr.sa.members[i] = strct->attr.sa.members[i+1];
296 ARR_SETLEN(entity*, strct->attr.sa.members, ARR_LEN(strct->attr.sa.members) - 1);
301 bool is_struct_type(type *strct) {
303 if (strct->type_op == type_struct) return 1; else return 0;
306 /*******************************************************************/
308 /*******************************************************************/
310 /* Create a new method type.
311 N_param is the number of parameters, n_res the number of results. */
312 type *new_type_method (ident *name, int n_param, int n_res) {
314 res = new_type(type_method, NULL, name);
315 res->attr.ma.n_params = n_param;
316 res->attr.ma.param_type = (type **) xmalloc (sizeof (type *) * n_param);
317 res->attr.ma.n_res = n_res;
318 res->attr.ma.res_type = (type **) xmalloc (sizeof (type *) * n_res);
322 /* manipulate private fields of method. */
323 int get_method_n_params (type *method) {
324 assert(method && (method->type_op == type_method));
325 return method->attr.ma.n_params;
327 type *get_method_param_type(type *method, int pos) {
328 assert(method && (method->type_op == type_method));
329 return method->attr.ma.param_type[pos];
331 void set_method_param_type(type *method, int pos, type* type) {
332 assert(method && (method->type_op == type_method));
333 method->attr.ma.param_type[pos] = type;
336 int get_method_n_res (type *method) {
337 assert(method && (method->type_op == type_method));
338 return method->attr.ma.n_res;
340 type *get_method_res_type(type *method, int pos) {
341 assert(method && (method->type_op == type_method));
342 return method->attr.ma.res_type[pos];
344 void set_method_res_type(type *method, int pos, type* type) {
345 assert(method && (method->type_op == type_method));
346 method->attr.ma.res_type[pos] = type;
350 bool is_method_type (type *method) {
352 if (method->type_op == type_method) return 1; else return 0;
356 /*******************************************************************/
358 /*******************************************************************/
360 /* create a new type uni */
361 type *new_type_uni (ident *name) {
363 res = new_type(type_union, NULL, name);
364 /*res->attr.ua.unioned_type = (type **) xmalloc (sizeof (type *) * n_types);
365 res->attr.ua.delim_names = (ident **) xmalloc (sizeof (ident *) * n_types); */
366 res->attr.ua.members = NEW_ARR_F (entity *, 1);
369 /* manipulate private fields of struct */
371 int get_union_n_types (type *uni) {
372 assert(uni && (uni->type_op == type_union));
373 return uni->attr.ua.n_types;
375 type *get_union_unioned_type (type *uni, int pos) {
376 assert(uni && (uni->type_op == type_union));
377 return uni->attr.ua.unioned_type[pos];
379 void set_union_unioned_type (type *uni, int pos, type *type) {
380 assert(uni && (uni->type_op == type_union));
381 uni->attr.ua.unioned_type[pos] = type;
383 ident *get_union_delim_nameid (type *uni, int pos) {
384 assert(uni && (uni->type_op == type_union));
385 return uni->attr.ua.delim_names[pos];
387 const char *get_union_delim_name (type *uni, int pos) {
388 assert(uni && (uni->type_op == type_union));
389 return id_to_str(uni->attr.ua.delim_names[pos]);
391 void set_union_delim_nameid (type *uni, int pos, ident *id) {
392 assert(uni && (uni->type_op == type_union));
393 uni->attr.ua.delim_names[pos] = id;
396 int get_union_n_members (type *uni) {
397 assert(uni && (uni->type_op == type_union));
398 return (ARR_LEN (uni->attr.ua.members))-1;
400 void add_union_member (type *uni, entity *member) {
401 assert(uni && (uni->type_op == type_union));
402 ARR_APP1 (entity *, uni->attr.ua.members, member);
404 entity *get_union_member (type *uni, int pos) {
405 assert(uni && (uni->type_op == type_union));
406 return uni->attr.ua.members[pos+1];
408 void set_union_member (type *uni, int pos, entity *member) {
409 assert(uni && (uni->type_op == type_union));
410 uni->attr.ua.members[pos+1] = member;
412 void remove_union_member(type *uni, entity *member) {
414 assert(uni && (uni->type_op == type_union));
415 for (i = 1; i < (ARR_LEN (uni->attr.ua.members))-1; i++)
416 if (uni->attr.ua.members[i+1] == member) {
417 for(i++; i < (ARR_LEN (uni->attr.ua.members))-1; i++)
418 uni->attr.ua.members[i] = uni->attr.ua.members[i+1];
419 ARR_SETLEN(entity*, uni->attr.ua.members, ARR_LEN(uni->attr.ua.members) - 1);
425 bool is_union_type (type *uni) {
427 if (uni->type_op == type_union) return 1; else return 0;
430 /*******************************************************************/
432 /*******************************************************************/
435 /* create a new type array -- set dimension sizes independently */
436 type *new_type_array (ident *name, int n_dimensions,
437 type *element_type) {
439 res = new_type(type_array, NULL, name);
440 res->attr.aa.n_dimensions = n_dimensions;
441 res->attr.aa.lower_bound = (ir_node **) xmalloc (sizeof (ir_node *) * n_dimensions);
442 res->attr.aa.upper_bound = (ir_node **) xmalloc (sizeof (ir_node *) * n_dimensions);
443 res->attr.aa.element_type = element_type;
444 new_entity(res, name, element_type);
448 /* manipulate private fields of array type */
449 int get_array_n_dimensions (type *array) {
450 assert(array && (array->type_op == type_array));
451 return array->attr.aa.n_dimensions;
453 void set_array_bounds (type *array, int dimension, ir_node * lower_bound,
454 ir_node * upper_bound) {
455 assert(array && (array->type_op == type_array));
456 array->attr.aa.lower_bound[dimension] = lower_bound;
457 array->attr.aa.upper_bound[dimension] = upper_bound;
459 void set_array_lower_bound (type *array, int dimension, ir_node * lower_bound) {
460 assert(array && (array->type_op == type_array));
461 array->attr.aa.lower_bound[dimension] = lower_bound;
463 void set_array_upper_bound (type *array, int dimension, ir_node * upper_bound) {
464 assert(array && (array->type_op == type_array));
465 array->attr.aa.upper_bound[dimension] = upper_bound;
467 ir_node * get_array_lower_bound (type *array, int dimension) {
468 assert(array && (array->type_op == type_array));
469 return array->attr.aa.lower_bound[dimension];
471 ir_node * get_array_upper_bound (type *array, int dimension) {
472 assert(array && (array->type_op == type_array));
473 return array->attr.aa.upper_bound[dimension];
475 void set_array_element_type (type *array, type *type) {
476 assert(array && (array->type_op == type_array));
477 array->attr.aa.element_type = type;
479 type *get_array_element_type (type *array) {
480 assert(array && (array->type_op == type_array));
481 return array->attr.aa.element_type;
483 void set_array_element_entity (type *array, entity *ent) {
484 assert(array && (array->type_op == type_array));
485 array->attr.aa.element_ent = ent;
487 entity *get_array_element_entity (type *array) {
488 assert(array && (array->type_op == type_array));
489 return array->attr.aa.element_ent;
493 bool is_array_type (type *array) {
495 if (array->type_op == type_array) return 1; else return 0;
498 /*******************************************************************/
499 /** TYPE_ENUMERATION **/
500 /*******************************************************************/
502 /* create a new type enumeration -- set the enumerators independently */
503 type *new_type_enumeration (ident *name, int n_enums) {
505 res = new_type(type_enumeration, NULL, name);
506 res->attr.ea.n_enums = n_enums;
507 res->attr.ea.enumer = (tarval **) xmalloc (sizeof (tarval *) * n_enums);
508 res->attr.ea.enum_nameid = (ident **) xmalloc (sizeof (ident *) * n_enums);
512 /* manipulate fields of enumeration type. */
513 int get_enumeration_n_enums (type *enumeration) {
514 assert(enumeration && (enumeration->type_op == type_enumeration));
515 return enumeration->attr.ea.n_enums;
517 void set_enumeration_enum (type *enumeration, int pos, tarval *con) {
518 assert(enumeration && (enumeration->type_op == type_enumeration));
519 enumeration->attr.ea.enumer[pos] = con;
521 tarval *get_enumeration_enum (type *enumeration, int pos) {
522 assert(enumeration && (enumeration->type_op == type_enumeration));
523 return enumeration->attr.ea.enumer[pos];
525 void set_enumeration_nameid (type *enumeration, int pos, ident *id) {
526 assert(enumeration && (enumeration->type_op == type_enumeration));
527 enumeration->attr.ea.enum_nameid[pos] = id;
529 ident *get_enumeration_nameid (type *enumeration, int pos) {
530 assert(enumeration && (enumeration->type_op == type_enumeration));
531 return enumeration->attr.ea.enum_nameid[pos];
533 const char *get_enumeration_name(type *enumeration, int pos) {
534 assert(enumeration && (enumeration->type_op == type_enumeration));
535 return id_to_str(enumeration->attr.ea.enum_nameid[pos]);
539 bool is_enumeration_type (type *enumeration) {
541 if (enumeration->type_op == type_enumeration) return 1; else return 0;
544 /*******************************************************************/
546 /*******************************************************************/
548 /* Create a new type pointer */
549 type *new_type_pointer (ident *name, type *points_to) {
551 res = new_type(type_pointer, mode_p, name);
552 res->attr.pa.points_to = points_to;
553 res->size = get_mode_size(res->mode);
554 res->state = layout_fixed;
557 /* manipulate fields of type_pointer */
558 void set_pointer_points_to_type (type *pointer, type *type) {
559 assert(pointer && (pointer->type_op == type_pointer));
560 pointer->attr.pa.points_to = type;
562 type *get_pointer_points_to_type (type *pointer) {
563 assert(pointer && (pointer->type_op == type_pointer));
564 return pointer->attr.pa.points_to;
568 bool is_pointer_type (type *pointer) {
570 if (pointer->type_op == type_pointer) return 1; else return 0;
574 /*******************************************************************/
575 /** TYPE_PRIMITIVE **/
576 /*******************************************************************/
578 /* create a new type primitive */
579 type *new_type_primitive (ident *name, ir_mode *mode) {
581 res = new_type(type_primitive, mode, name);
582 res->size = get_mode_size(mode);
583 res->state = layout_fixed;
588 bool is_primitive_type (type *primitive) {
590 if (primitive->type_op == type_primitive) return 1; else return 0;