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 types.
23 * @author Goetz Lindenmaier, Michael Beck
27 * Implementation of the datastructure to hold
30 * This module supplies a datastructure to represent all types
31 * known in the compiled program. This includes types specified
32 * in the program as well as types defined by the language. In the
33 * view of the intermediate representation there is no difference
34 * between these types.
36 * There exist several kinds of types, arranged by the structure of
37 * the type. A type is described by a set of attributes. Some of
38 * these attributes are common to all types, others depend on the
41 * Types are different from the modes defined in irmode: Types are
42 * on the level of the programming language, modes at the level of
43 * the target processor.
45 * @see type_t.h type tpop
67 /*-----------------------------------------------------------------*/
69 /*-----------------------------------------------------------------*/
71 ir_type *firm_none_type; ir_type *get_none_type(void) { return firm_none_type; }
72 ir_type *firm_code_type; ir_type *get_code_type(void) { return firm_code_type; }
73 ir_type *firm_unknown_type; ir_type *get_unknown_type(void) { return firm_unknown_type; }
76 /* Suffixes added to types used for pass-by-value representations. */
77 static ident *value_params_suffix = NULL;
78 static ident *value_ress_suffix = NULL;
80 /** The default calling convention for method types. */
81 static unsigned default_cc_mask;
83 /* return the default calling convention for method types */
84 unsigned get_default_cc_mask(void) {
85 return default_cc_mask;
88 /* Initialize the type module. */
89 void firm_init_type(dbg_info *builtin_db, unsigned def_cc_mask) {
90 default_cc_mask = def_cc_mask;
91 value_params_suffix = new_id_from_str(VALUE_PARAMS_SUFFIX);
92 value_ress_suffix = new_id_from_str(VALUE_RESS_SUFFIX);
94 /* construct none and unknown type. */
95 firm_none_type = new_type(tpop_none, mode_BAD, new_id_from_str("type_none"), builtin_db);
96 set_type_size_bytes(firm_none_type, 0);
97 set_type_state (firm_none_type, layout_fixed);
98 remove_irp_type(firm_none_type);
100 firm_code_type = new_type(tpop_code, mode_ANY, new_id_from_str("type_code"), builtin_db);
101 set_type_state(firm_code_type, layout_fixed);
102 remove_irp_type(firm_code_type);
104 firm_unknown_type = new_type(tpop_unknown, mode_ANY, new_id_from_str("type_unknown"), builtin_db);
105 set_type_size_bytes(firm_unknown_type, 0);
106 set_type_state (firm_unknown_type, layout_fixed);
107 remove_irp_type(firm_unknown_type);
110 /** the global type visited flag */
111 ir_visited_t firm_type_visited;
113 void (set_master_type_visited)(ir_visited_t val) { _set_master_type_visited(val); }
114 ir_visited_t (get_master_type_visited)(void) { return _get_master_type_visited(); }
115 void (inc_master_type_visited)(void) { _inc_master_type_visited(); }
118 * Creates a new type representation.
121 new_type(const tp_op *type_op, ir_mode *mode, ident *name, dbg_info *db) {
125 assert(type_op != type_id);
126 assert(!id_contains_char(name, ' ') && "type name should not contain spaces");
128 node_size = offsetof(ir_type, attr) + type_op->attr_size;
129 res = xmalloc(node_size);
130 memset(res, 0, node_size);
133 res->type_op = type_op;
136 res->visibility = visibility_external_allocated;
137 res->flags = tf_none;
143 res->assoc_type = NULL;
145 res->nr = get_irp_new_node_nr();
146 #endif /* defined DEBUG_libfirm */
148 add_irp_type(res); /* Remember the new type global. */
153 void free_type(ir_type *tp) {
154 const tp_op *op = get_type_tpop(tp);
156 if ((get_type_tpop(tp) == tpop_none) || (get_type_tpop(tp) == tpop_unknown)
157 || (get_type_tpop(tp) == tpop_code))
159 /* Remove from list of all types */
161 /* Free the attributes of the type. */
163 /* Free entities automatically allocated with the ir_type */
164 if (op->ops.free_auto_entities)
165 op->ops.free_auto_entities(tp);
166 /* And now the type itself... */
171 void free_type_entities(ir_type *tp) {
172 const tp_op *tpop = get_type_tpop(tp);
174 if (tpop->ops.free_entities)
175 tpop->ops.free_entities(tp);
178 void free_type_attrs(ir_type *tp) {
179 const tp_op *tpop = get_type_tpop(tp);
181 if (tpop->ops.free_attrs)
182 tpop->ops.free_attrs(tp);
185 /* set/get the link field */
186 void *(get_type_link)(const ir_type *tp) {
187 return _get_type_link(tp);
190 void (set_type_link)(ir_type *tp, void *l) {
191 _set_type_link(tp, l);
194 const tp_op *(get_type_tpop)(const ir_type *tp) {
195 return _get_type_tpop(tp);
198 ident *(get_type_tpop_nameid)(const ir_type *tp) {
199 return _get_type_tpop_nameid(tp);
202 const char* get_type_tpop_name(const ir_type *tp) {
203 assert(tp && tp->kind == k_type);
204 return get_id_str(tp->type_op->name);
207 tp_opcode (get_type_tpop_code)(const ir_type *tp) {
208 return _get_type_tpop_code(tp);
211 ir_mode *(get_type_mode)(const ir_type *tp) {
212 return _get_type_mode(tp);
215 void set_type_mode(ir_type *tp, ir_mode *mode) {
216 const tp_op *tpop = get_type_tpop(tp);
218 if (tpop->ops.set_type_mode)
219 tpop->ops.set_type_mode(tp, mode);
221 assert(0 && "setting a mode is NOT allowed for this type");
224 ident *(get_type_ident)(const ir_type *tp) {
225 return _get_type_ident(tp);
228 void (set_type_ident)(ir_type *tp, ident* id) {
229 _set_type_ident(tp, id);
232 /* Outputs a unique number for this node */
233 long get_type_nr(const ir_type *tp) {
238 return (long)PTR_TO_INT(tp);
242 const char *get_type_name(const ir_type *tp) {
243 assert(tp && tp->kind == k_type);
244 return (get_id_str(tp->name));
247 unsigned (get_type_size_bytes)(const ir_type *tp) {
248 return _get_type_size_bytes(tp);
251 ir_visibility get_type_visibility(const ir_type *tp) {
253 visibility res = visibility_local;
254 if (is_compound_type(tp)) {
256 if (is_Array_type(tp)) {
257 ir_entity *mem = get_array_element_entity(tp);
258 if (get_entity_visibility(mem) != visibility_local)
259 res = visibility_external_visible;
261 int i, n_mems = get_compound_n_members(tp);
262 for (i = 0; i < n_mems; ++i) {
263 ir_entity *mem = get_compound_member(tp, i);
264 if (get_entity_visibility(mem) != visibility_local)
265 res = visibility_external_visible;
272 return tp->visibility;
275 void set_type_visibility(ir_type *tp, ir_visibility v) {
278 /* check for correctness */
279 if (v != visibility_external_allocated) {
280 visibility res = visibility_local;
281 if (is_compound_type(tp)) {
282 if (is_Array_type(tp)) {
283 ir_entity *mem = get_array_element_entity(tp);
284 if (get_entity_visibility(mem) > res)
285 res = get_entity_visibility(mem);
287 int i, n_mems = get_compound_n_members(tp);
288 for (i = 0; i < n_mems; ++i) {
289 ir_entity *mem = get_compound_member(tp, i);
290 if (get_entity_visibility(mem) > res)
291 res = get_entity_visibility(mem);
302 set_type_size_bytes(ir_type *tp, unsigned size) {
303 const tp_op *tpop = get_type_tpop(tp);
305 if (tpop->ops.set_type_size)
306 tpop->ops.set_type_size(tp, size);
308 assert(0 && "Cannot set size for this type");
311 unsigned get_type_alignment_bytes(ir_type *tp) {
317 /* alignment NOT set calculate it "on demand" */
319 align = (get_mode_size_bits(tp->mode) + 7) >> 3;
320 else if (is_Array_type(tp))
321 align = get_type_alignment_bytes(get_array_element_type(tp));
322 else if (is_compound_type(tp)) {
323 int i, n = get_compound_n_members(tp);
326 for (i = 0; i < n; ++i) {
327 ir_type *t = get_entity_type(get_compound_member(tp, i));
328 unsigned a = get_type_alignment_bytes(t);
333 } else if (is_Method_type(tp)) {
344 set_type_alignment_bytes(ir_type *tp, unsigned align) {
345 assert(tp && tp->kind == k_type);
346 /* Methods don't have an alignment. */
347 if (tp->type_op != type_method) {
352 /* Returns a human readable string for the enum entry. */
353 const char *get_type_state_name(ir_type_state s) {
354 #define X(a) case a: return #a;
364 ir_type_state (get_type_state)(const ir_type *tp) {
365 return _get_type_state(tp);
369 set_type_state(ir_type *tp, ir_type_state state) {
370 assert(tp && tp->kind == k_type);
372 if ((tp->type_op == type_pointer) || (tp->type_op == type_primitive) ||
373 (tp->type_op == type_method))
376 /* Just a correctness check: */
377 if (state == layout_fixed) {
379 switch (get_type_tpop_code(tp)) {
381 if (tp != get_glob_type()) {
382 int n_mem = get_class_n_members(tp);
383 for (i = 0; i < n_mem; i++) {
384 assert(get_entity_offset(get_class_member(tp, i)) > -1);
386 assert(is_Method_type(get_entity_type(get_class_member(tp, i))) ||
387 (get_entity_allocation(get_class_member(tp, i)) == allocation_automatic));
393 for (i = 0; i < get_struct_n_members(tp); i++) {
394 assert(get_entity_offset(get_struct_member(tp, i)) > -1);
395 assert((get_entity_allocation(get_struct_member(tp, i)) == allocation_automatic));
404 Assure that only innermost dimension is dynamic? */
406 case tpo_enumeration:
408 assert(get_type_mode != NULL);
409 for (i = get_enumeration_n_enums(tp) - 1; i >= 0; --i) {
410 ir_enum_const *ec = get_enumeration_const(tp, i);
411 tarval *tv = get_enumeration_value(ec);
412 assert(tv != NULL && tv != tarval_bad);
419 if (state == layout_fixed)
420 tp->flags |= tf_layout_fixed;
422 tp->flags &= ~tf_layout_fixed;
425 ir_visited_t (get_type_visited)(const ir_type *tp) {
426 return _get_type_visited(tp);
429 void (set_type_visited)(ir_type *tp, ir_visited_t num) {
430 _set_type_visited(tp, num);
433 /* Sets visited field in type to type_visited. */
434 void (mark_type_visited)(ir_type *tp) {
435 _mark_type_visited(tp);
438 int (type_visited)(const ir_type *tp) {
439 return _type_visited(tp);
442 int (type_not_visited)(const ir_type *tp) {
443 return _type_not_visited(tp);
446 dbg_info *(get_type_dbg_info)(const ir_type *tp) {
447 return _get_type_dbg_info(tp);
450 void (set_type_dbg_info)(ir_type *tp, dbg_info *db) {
451 _set_type_dbg_info(tp, db);
454 int (is_type)(const void *thing) {
455 return _is_type(thing);
458 /* Checks whether two types are structural equal.*/
459 int equal_type(ir_type *typ1, ir_type *typ2) {
464 if (typ1 == typ2) return 1;
466 if ((get_type_tpop_code(typ1) != get_type_tpop_code(typ2)) ||
467 (get_type_ident(typ1) != get_type_ident(typ2)) ||
468 (get_type_mode(typ1) != get_type_mode(typ2)) ||
469 (get_type_state(typ1) != get_type_state(typ2)))
471 if ((get_type_state(typ1) == layout_fixed) &&
472 (get_type_size_bytes(typ1) != get_type_size_bytes(typ2)))
475 switch (get_type_tpop_code(typ1)) {
477 if (get_class_n_members(typ1) != get_class_n_members(typ2)) return 0;
478 if (get_class_n_subtypes(typ1) != get_class_n_subtypes(typ2)) return 0;
479 if (get_class_n_supertypes(typ1) != get_class_n_supertypes(typ2)) return 0;
480 if (get_class_peculiarity(typ1) != get_class_peculiarity(typ2)) return 0;
481 /** Compare the members **/
482 m = ALLOCANZ(ir_entity*, get_class_n_members(typ1));
483 /* First sort the members of typ2 */
484 for (i = 0; i < get_class_n_members(typ1); i++) {
485 ir_entity *e1 = get_class_member(typ1, i);
486 for (j = 0; j < get_class_n_members(typ2); j++) {
487 ir_entity *e2 = get_class_member(typ2, j);
488 if (get_entity_name(e1) == get_entity_name(e2))
492 for (i = 0; i < get_class_n_members(typ1); i++) {
493 if (!m[i] || /* Found no counterpart */
494 !equal_entity(get_class_member(typ1, i), m[i]))
497 /** Compare the supertypes **/
498 t = ALLOCANZ(ir_type*, get_class_n_supertypes(typ1));
499 /* First sort the supertypes of typ2 */
500 for (i = 0; i < get_class_n_supertypes(typ1); i++) {
501 ir_type *t1 = get_class_supertype(typ1, i);
502 for (j = 0; j < get_class_n_supertypes(typ2); j++) {
503 ir_type *t2 = get_class_supertype(typ2, j);
504 if (get_type_ident(t2) == get_type_ident(t1))
508 for (i = 0; i < get_class_n_supertypes(typ1); i++) {
509 if (!t[i] || /* Found no counterpart */
510 get_class_supertype(typ1, i) != t[i])
516 if (get_struct_n_members(typ1) != get_struct_n_members(typ2)) return 0;
517 m = ALLOCANZ(ir_entity*, get_struct_n_members(typ1));
518 /* First sort the members of lt */
519 for (i = 0; i < get_struct_n_members(typ1); i++) {
520 ir_entity *e1 = get_struct_member(typ1, i);
521 for (j = 0; j < get_struct_n_members(typ2); j++) {
522 ir_entity *e2 = get_struct_member(typ2, j);
523 if (get_entity_name(e1) == get_entity_name(e2))
527 for (i = 0; i < get_struct_n_members(typ1); i++) {
528 if (!m[i] || /* Found no counterpart */
529 !equal_entity(get_struct_member(typ1, i), m[i]))
535 int n_param1, n_param2;
537 if (get_method_variadicity(typ1) != get_method_variadicity(typ2)) return 0;
538 if (get_method_n_ress(typ1) != get_method_n_ress(typ2)) return 0;
539 if (get_method_calling_convention(typ1) !=
540 get_method_calling_convention(typ2)) return 0;
542 if (get_method_variadicity(typ1) == variadicity_non_variadic) {
543 n_param1 = get_method_n_params(typ1);
544 n_param2 = get_method_n_params(typ2);
546 n_param1 = get_method_first_variadic_param_index(typ1);
547 n_param2 = get_method_first_variadic_param_index(typ2);
550 if (n_param1 != n_param2) return 0;
552 for (i = 0; i < n_param1; i++) {
553 if (!equal_type(get_method_param_type(typ1, i), get_method_param_type(typ2, i)))
556 for (i = 0; i < get_method_n_ress(typ1); i++) {
557 if (!equal_type(get_method_res_type(typ1, i), get_method_res_type(typ2, i)))
563 if (get_union_n_members(typ1) != get_union_n_members(typ2)) return 0;
564 m = ALLOCANZ(ir_entity*, get_union_n_members(typ1));
565 /* First sort the members of lt */
566 for (i = 0; i < get_union_n_members(typ1); i++) {
567 ir_entity *e1 = get_union_member(typ1, i);
568 for (j = 0; j < get_union_n_members(typ2); j++) {
569 ir_entity *e2 = get_union_member(typ2, j);
570 if (get_entity_name(e1) == get_entity_name(e2))
574 for (i = 0; i < get_union_n_members(typ1); i++) {
575 if (!m[i] || /* Found no counterpart */
576 !equal_entity(get_union_member(typ1, i), m[i]))
582 if (get_array_n_dimensions(typ1) != get_array_n_dimensions(typ2))
584 if (!equal_type(get_array_element_type(typ1), get_array_element_type(typ2)))
586 for(i = 0; i < get_array_n_dimensions(typ1); i++) {
587 if (get_array_lower_bound(typ1, i) != get_array_lower_bound(typ2, i) ||
588 get_array_upper_bound(typ1, i) != get_array_upper_bound(typ2, i))
590 if (get_array_order(typ1, i) != get_array_order(typ2, i))
591 assert(0 && "type compare with different dimension orders not implemented");
595 case tpo_enumeration:
596 assert(0 && "enumerations not implemented");
600 if (get_pointer_points_to_type(typ1) != get_pointer_points_to_type(typ2))
612 /* Checks whether two types are structural comparable. */
613 int smaller_type(ir_type *st, ir_type *lt) {
615 int i, j, n_st_members;
617 if (st == lt) return 1;
619 if (get_type_tpop_code(st) != get_type_tpop_code(lt))
622 switch(get_type_tpop_code(st)) {
624 return is_SubClass_of(st, lt);
627 n_st_members = get_struct_n_members(st);
628 if (n_st_members != get_struct_n_members(lt))
631 m = ALLOCANZ(ir_entity*, n_st_members);
632 /* First sort the members of lt */
633 for (i = 0; i < n_st_members; ++i) {
634 ir_entity *se = get_struct_member(st, i);
635 int n = get_struct_n_members(lt);
636 for (j = 0; j < n; ++j) {
637 ir_entity *le = get_struct_member(lt, j);
638 if (get_entity_name(le) == get_entity_name(se))
642 for (i = 0; i < n_st_members; i++) {
643 if (!m[i] || /* Found no counterpart */
644 !smaller_type(get_entity_type(get_struct_member(st, i)), get_entity_type(m[i])))
650 int n_param1, n_param2;
652 /** FIXME: is this still 1? */
653 if (get_method_variadicity(st) != get_method_variadicity(lt)) return 0;
654 if (get_method_n_ress(st) != get_method_n_ress(lt)) return 0;
655 if (get_method_calling_convention(st) !=
656 get_method_calling_convention(lt)) return 0;
658 if (get_method_variadicity(st) == variadicity_non_variadic) {
659 n_param1 = get_method_n_params(st);
660 n_param2 = get_method_n_params(lt);
662 n_param1 = get_method_first_variadic_param_index(st);
663 n_param2 = get_method_first_variadic_param_index(lt);
666 if (n_param1 != n_param2) return 0;
668 for (i = 0; i < get_method_n_params(st); i++) {
669 if (!smaller_type(get_method_param_type(st, i), get_method_param_type(lt, i)))
672 for (i = 0; i < get_method_n_ress(st); i++) {
673 if (!smaller_type(get_method_res_type(st, i), get_method_res_type(lt, i)))
679 n_st_members = get_union_n_members(st);
680 if (n_st_members != get_union_n_members(lt)) return 0;
681 m = ALLOCANZ(ir_entity*, n_st_members);
682 /* First sort the members of lt */
683 for (i = 0; i < n_st_members; ++i) {
684 ir_entity *se = get_union_member(st, i);
685 int n = get_union_n_members(lt);
686 for (j = 0; j < n; ++j) {
687 ir_entity *le = get_union_member(lt, j);
688 if (get_entity_name(le) == get_entity_name(se))
692 for (i = 0; i < n_st_members; ++i) {
693 if (!m[i] || /* Found no counterpart */
694 !smaller_type(get_entity_type(get_union_member(st, i)), get_entity_type(m[i])))
700 ir_type *set, *let; /* small/large elt. ir_type */
701 if (get_array_n_dimensions(st) != get_array_n_dimensions(lt))
703 set = get_array_element_type(st);
704 let = get_array_element_type(lt);
706 /* If the element types are different, set must be convertible
707 to let, and they must have the same size so that address
708 computations work out. To have a size the layout must
710 if ((get_type_state(set) != layout_fixed) ||
711 (get_type_state(let) != layout_fixed))
713 if (!smaller_type(set, let) ||
714 get_type_size_bytes(set) != get_type_size_bytes(let))
717 for(i = 0; i < get_array_n_dimensions(st); i++) {
718 if (get_array_lower_bound(lt, i))
719 if(get_array_lower_bound(st, i) != get_array_lower_bound(lt, i))
721 if (get_array_upper_bound(lt, i))
722 if(get_array_upper_bound(st, i) != get_array_upper_bound(lt, i))
727 case tpo_enumeration:
728 assert(0 && "enumerations not implemented");
732 if (!smaller_type(get_pointer_points_to_type(st), get_pointer_points_to_type(lt)))
737 if (!smaller_mode(get_type_mode(st), get_type_mode(lt)))
746 /*-----------------------------------------------------------------*/
748 /*-----------------------------------------------------------------*/
750 /* create a new class ir_type */
751 ir_type *new_d_type_class (ident *name, dbg_info *db) {
754 res = new_type(type_class, NULL, name, db);
756 res->attr.ca.members = NEW_ARR_F (ir_entity *, 0);
757 res->attr.ca.subtypes = NEW_ARR_F (ir_type *, 0);
758 res->attr.ca.supertypes = NEW_ARR_F (ir_type *, 0);
759 res->attr.ca.peculiarity = peculiarity_existent;
760 res->attr.ca.type_info = NULL;
761 res->attr.ca.vtable_size = 0;
762 res->attr.ca.clss_flags = cf_none;
763 res->attr.ca.dfn = 0;
768 ir_type *new_type_class (ident *name) {
769 return new_d_type_class (name, NULL);
772 /* free all entities of a class */
773 void free_class_entities(ir_type *clss) {
775 assert(clss && (clss->type_op == type_class));
776 for (i = get_class_n_members(clss) - 1; i >= 0; --i)
777 free_entity(get_class_member(clss, i));
778 /* do NOT free the type info here. It belongs to another class */
781 void free_class_attrs(ir_type *clss) {
782 assert(clss && (clss->type_op == type_class));
783 DEL_ARR_F(clss->attr.ca.members);
784 DEL_ARR_F(clss->attr.ca.subtypes);
785 DEL_ARR_F(clss->attr.ca.supertypes);
788 /* manipulate private fields of class type */
789 void add_class_member(ir_type *clss, ir_entity *member) {
790 assert(clss && (clss->type_op == type_class));
791 assert(clss != get_entity_type(member) && "recursive type");
792 assert(get_type_state(clss) != layout_fixed);
793 ARR_APP1 (ir_entity *, clss->attr.ca.members, member);
796 int (get_class_n_members)(const ir_type *clss) {
797 return _get_class_n_members(clss);
800 int get_class_member_index(const ir_type *clss, ir_entity *mem) {
802 assert(clss && (clss->type_op == type_class));
803 for (i = 0, n = get_class_n_members(clss); i < n; ++i)
804 if (get_class_member(clss, i) == mem)
809 ir_entity *(get_class_member)(const ir_type *clss, int pos) {
810 return _get_class_member(clss, pos);
813 ir_entity *get_class_member_by_name(ir_type *clss, ident *name) {
815 assert(clss && (clss->type_op == type_class));
816 n_mem = get_class_n_members(clss);
817 for (i = 0; i < n_mem; ++i) {
818 ir_entity *mem = get_class_member(clss, i);
819 if (get_entity_ident(mem) == name) return mem;
824 void set_class_member(ir_type *clss, ir_entity *member, int pos) {
825 assert(clss && (clss->type_op == type_class));
826 assert(pos >= 0 && pos < get_class_n_members(clss));
827 clss->attr.ca.members[pos] = member;
830 void set_class_members(ir_type *clss, ir_entity **members, int arity) {
832 assert(clss && (clss->type_op == type_class));
833 DEL_ARR_F(clss->attr.ca.members);
834 clss->attr.ca.members = NEW_ARR_F(ir_entity *, 0);
835 for (i = 0; i < arity; ++i) {
836 set_entity_owner(members[i], clss);
837 ARR_APP1(ir_entity *, clss->attr.ca.members, members[i]);
841 void remove_class_member(ir_type *clss, ir_entity *member) {
843 assert(clss && (clss->type_op == type_class));
844 for (i = 0; i < (ARR_LEN (clss->attr.ca.members)); i++) {
845 if (clss->attr.ca.members[i] == member) {
846 for (; i < (ARR_LEN (clss->attr.ca.members)) - 1; i++)
847 clss->attr.ca.members[i] = clss->attr.ca.members[i + 1];
848 ARR_SETLEN(ir_entity*, clss->attr.ca.members, ARR_LEN(clss->attr.ca.members) - 1);
854 void add_class_subtype(ir_type *clss, ir_type *subtype) {
856 assert(clss && (clss->type_op == type_class));
857 ARR_APP1 (ir_type *, clss->attr.ca.subtypes, subtype);
858 for (i = 0; i < get_class_n_supertypes(subtype); i++)
859 if (get_class_supertype(subtype, i) == clss)
860 /* Class already registered */
862 ARR_APP1(ir_type *, subtype->attr.ca.supertypes, clss);
865 int get_class_n_subtypes(const ir_type *clss) {
866 assert(clss && (clss->type_op == type_class));
867 return (ARR_LEN (clss->attr.ca.subtypes));
870 ir_type *get_class_subtype(ir_type *clss, int pos) {
871 assert(clss && (clss->type_op == type_class));
872 assert(pos >= 0 && pos < get_class_n_subtypes(clss));
873 return clss->attr.ca.subtypes[pos] = skip_tid(clss->attr.ca.subtypes[pos]);
876 int get_class_subtype_index(ir_type *clss, const ir_type *subclass) {
877 int i, n_subtypes = get_class_n_subtypes(clss);
878 assert(is_Class_type(subclass));
879 for (i = 0; i < n_subtypes; ++i) {
880 if (get_class_subtype(clss, i) == subclass) return i;
885 void set_class_subtype(ir_type *clss, ir_type *subtype, int pos) {
886 assert(clss && (clss->type_op == type_class));
887 assert(pos >= 0 && pos < get_class_n_subtypes(clss));
888 clss->attr.ca.subtypes[pos] = subtype;
891 void remove_class_subtype(ir_type *clss, ir_type *subtype) {
893 assert(clss && (clss->type_op == type_class));
894 for (i = 0; i < (ARR_LEN (clss->attr.ca.subtypes)); i++)
895 if (clss->attr.ca.subtypes[i] == subtype) {
896 for (; i < (ARR_LEN (clss->attr.ca.subtypes))-1; i++)
897 clss->attr.ca.subtypes[i] = clss->attr.ca.subtypes[i+1];
898 ARR_SETLEN(ir_entity*, clss->attr.ca.subtypes, ARR_LEN(clss->attr.ca.subtypes) - 1);
903 void add_class_supertype(ir_type *clss, ir_type *supertype) {
905 assert(clss && (clss->type_op == type_class));
906 assert(supertype && (supertype -> type_op == type_class));
907 ARR_APP1 (ir_type *, clss->attr.ca.supertypes, supertype);
908 for (i = get_class_n_subtypes(supertype) - 1; i >= 0; --i)
909 if (get_class_subtype(supertype, i) == clss)
910 /* Class already registered */
912 ARR_APP1(ir_type *, supertype->attr.ca.subtypes, clss);
915 int get_class_n_supertypes(const ir_type *clss) {
916 assert(clss && (clss->type_op == type_class));
917 return ARR_LEN(clss->attr.ca.supertypes);
920 int get_class_supertype_index(ir_type *clss, ir_type *super_clss) {
921 int i, n_supertypes = get_class_n_supertypes(clss);
922 assert(super_clss && (super_clss->type_op == type_class));
923 for (i = 0; i < n_supertypes; i++)
924 if (get_class_supertype(clss, i) == super_clss)
929 ir_type *get_class_supertype(ir_type *clss, int pos) {
930 assert(clss && (clss->type_op == type_class));
931 assert(pos >= 0 && pos < get_class_n_supertypes(clss));
932 return clss->attr.ca.supertypes[pos] = skip_tid(clss->attr.ca.supertypes[pos]);
935 void set_class_supertype(ir_type *clss, ir_type *supertype, int pos) {
936 assert(clss && (clss->type_op == type_class));
937 assert(pos >= 0 && pos < get_class_n_supertypes(clss));
938 clss->attr.ca.supertypes[pos] = supertype;
941 void remove_class_supertype(ir_type *clss, ir_type *supertype) {
943 assert(clss && (clss->type_op == type_class));
944 for (i = 0; i < (ARR_LEN(clss->attr.ca.supertypes)); i++)
945 if (clss->attr.ca.supertypes[i] == supertype) {
946 for(; i < (ARR_LEN(clss->attr.ca.supertypes))-1; i++)
947 clss->attr.ca.supertypes[i] = clss->attr.ca.supertypes[i+1];
948 ARR_SETLEN(ir_entity*, clss->attr.ca.supertypes, ARR_LEN(clss->attr.ca.supertypes) - 1);
953 ir_entity *get_class_type_info(const ir_type *clss) {
954 return clss->attr.ca.type_info;
957 void set_class_type_info(ir_type *clss, ir_entity *ent) {
958 clss->attr.ca.type_info = ent;
960 ent->repr_class = clss;
963 const char *get_peculiarity_name(ir_peculiarity p) {
964 #define X(a) case a: return #a
966 X(peculiarity_description);
967 X(peculiarity_inherited);
968 X(peculiarity_existent);
971 return "invalid peculiarity";
974 ir_peculiarity get_class_peculiarity(const ir_type *clss) {
975 assert(clss && (clss->type_op == type_class));
976 return clss->attr.ca.peculiarity;
979 void set_class_peculiarity(ir_type *clss, ir_peculiarity pec) {
980 assert(clss && (clss->type_op == type_class));
981 assert(pec != peculiarity_inherited); /* There is no inheritance of types in libFirm. */
982 clss->attr.ca.peculiarity = pec;
985 /* Returns the size of the virtual function table. */
986 unsigned (get_class_vtable_size)(const ir_type *clss) {
987 return _get_class_vtable_size(clss);
990 /* Sets a new size of the virtual function table. */
991 void (set_class_vtable_size)(ir_type *clss, unsigned size) {
992 _set_class_vtable_size(clss, size);
995 /* Returns non-zero if a class is final. */
996 int (is_class_final)(const ir_type *clss) {
997 return _is_class_final(clss);
1000 /* Sets if a class is final. */
1001 void (set_class_final)(ir_type *clss, int flag) {
1002 _set_class_final(clss, flag);
1005 /* Returns non-zero if a class is an interface. */
1006 int (is_class_interface)(const ir_type *clss) {
1007 return _is_class_interface(clss);
1010 /* Sets the class interface flag. */
1011 void (set_class_interface)(ir_type *clss, int flag) {
1012 _set_class_interface(clss, flag);
1015 /* Returns non-zero if a class is abstract. */
1016 int (is_class_abstract)(const ir_type *clss) {
1017 return _is_class_abstract(clss);
1020 /* Sets the class abstract flag. */
1021 void (set_class_abstract)(ir_type *clss, int final) {
1022 _set_class_abstract(clss, final);
1025 void set_class_dfn(ir_type *clss, int dfn) {
1026 clss->attr.ca.dfn = dfn;
1029 int get_class_dfn(const ir_type *clss) {
1030 return (clss->attr.ca.dfn);
1034 int (is_Class_type)(const ir_type *clss) {
1035 return _is_class_type(clss);
1038 void set_class_mode(ir_type *tp, ir_mode *mode) {
1039 /* for classes and structs we allow to set a mode if the layout is fixed AND the size matches */
1040 assert(get_type_state(tp) == layout_fixed &&
1041 tp->size == get_mode_size_bytes(mode) && "mode don't match class layout");
1045 void set_class_size(ir_type *tp, unsigned size) {
1049 /*----------------------------------------------------------------**/
1051 /*----------------------------------------------------------------**/
1053 /* create a new type struct */
1054 ir_type *new_d_type_struct(ident *name, dbg_info *db) {
1055 ir_type *res = new_type(type_struct, NULL, name, db);
1057 res->attr.sa.members = NEW_ARR_F(ir_entity *, 0);
1062 ir_type *new_type_struct(ident *name) {
1063 return new_d_type_struct (name, NULL);
1066 void free_struct_entities(ir_type *strct) {
1068 assert(strct && (strct->type_op == type_struct));
1069 for (i = get_struct_n_members(strct)-1; i >= 0; --i)
1070 free_entity(get_struct_member(strct, i));
1073 void free_struct_attrs(ir_type *strct) {
1074 assert(strct && (strct->type_op == type_struct));
1075 DEL_ARR_F(strct->attr.sa.members);
1078 /* manipulate private fields of struct */
1079 int get_struct_n_members(const ir_type *strct) {
1080 assert(strct && (strct->type_op == type_struct));
1081 return ARR_LEN(strct->attr.sa.members);
1084 void add_struct_member(ir_type *strct, ir_entity *member) {
1085 assert(strct && (strct->type_op == type_struct));
1086 assert(get_type_tpop(get_entity_type(member)) != type_method);
1087 assert(strct != get_entity_type(member) && "recursive type");
1088 assert(get_type_state(strct) != layout_fixed);
1089 ARR_APP1 (ir_entity *, strct->attr.sa.members, member);
1092 ir_entity *get_struct_member(const ir_type *strct, int pos) {
1093 assert(strct && (strct->type_op == type_struct));
1094 assert(pos >= 0 && pos < get_struct_n_members(strct));
1095 return strct->attr.sa.members[pos];
1098 int get_struct_member_index(const ir_type *strct, ir_entity *mem) {
1100 assert(strct && (strct->type_op == type_struct));
1101 for (i = 0, n = get_struct_n_members(strct); i < n; ++i)
1102 if (get_struct_member(strct, i) == mem)
1107 void set_struct_member(ir_type *strct, int pos, ir_entity *member) {
1108 assert(strct && (strct->type_op == type_struct));
1109 assert(pos >= 0 && pos < get_struct_n_members(strct));
1110 assert(get_entity_type(member)->type_op != type_method);/* @@@ lowerfirm !!*/
1111 strct->attr.sa.members[pos] = member;
1114 void remove_struct_member(ir_type *strct, ir_entity *member) {
1116 assert(strct && (strct->type_op == type_struct));
1117 for (i = 0; i < (ARR_LEN (strct->attr.sa.members)); i++)
1118 if (strct->attr.sa.members[i] == member) {
1119 for(; i < (ARR_LEN (strct->attr.sa.members))-1; i++)
1120 strct->attr.sa.members[i] = strct->attr.sa.members[i+1];
1121 ARR_SETLEN(ir_entity*, strct->attr.sa.members, ARR_LEN(strct->attr.sa.members) - 1);
1127 int (is_Struct_type)(const ir_type *strct) {
1128 return _is_struct_type(strct);
1131 void set_struct_mode(ir_type *tp, ir_mode *mode) {
1132 /* for classes and structs we allow to set a mode if the layout is fixed AND the size matches */
1133 assert(get_type_state(tp) == layout_fixed &&
1134 tp->size == get_mode_size_bytes(mode) && "mode don't match struct layout");
1138 void set_struct_size(ir_type *tp, unsigned size) {
1142 /*******************************************************************/
1144 /*******************************************************************/
1147 * Lazy construction of value argument / result representation.
1148 * Constructs a struct type and its member. The types of the members
1149 * are passed in the argument list.
1151 * @param name name of the type constructed
1152 * @param len number of fields
1153 * @param tps array of field types with length len
1156 build_value_type(ident *name, int len, tp_ent_pair *tps) {
1158 ir_type *res = new_type_struct(name);
1159 res->flags |= tf_value_param_type;
1160 /* Remove type from type list. Must be treated differently than other types. */
1161 remove_irp_type(res);
1162 for (i = 0; i < len; i++) {
1163 ident *id = tps[i].param_name;
1165 /* use res as default if corresponding type is not yet set. */
1166 ir_type *elt_type = tps[i].tp ? tps[i].tp : res;
1168 /* use the parameter name if specified */
1170 id = id_mangle_u(name, get_type_ident(elt_type));
1171 tps[i].ent = new_entity(res, id, elt_type);
1172 set_entity_allocation(tps[i].ent, allocation_parameter);
1177 /* Create a new method type.
1178 N_param is the number of parameters, n_res the number of results. */
1179 ir_type *new_d_type_method(ident *name, int n_param, int n_res, dbg_info *db) {
1182 assert((get_mode_size_bits(mode_P_code) % 8 == 0) && "unorthodox modes not implemented");
1183 res = new_type(type_method, mode_P_code, name, db);
1184 res->flags |= tf_layout_fixed;
1185 res->size = get_mode_size_bytes(mode_P_code);
1186 res->attr.ma.n_params = n_param;
1187 res->attr.ma.params = XMALLOCNZ(tp_ent_pair, n_param);
1188 res->attr.ma.value_params = NULL;
1189 res->attr.ma.n_res = n_res;
1190 res->attr.ma.res_type = XMALLOCNZ(tp_ent_pair, n_res);
1191 res->attr.ma.value_ress = NULL;
1192 res->attr.ma.variadicity = variadicity_non_variadic;
1193 res->attr.ma.first_variadic_param = -1;
1194 res->attr.ma.additional_properties = mtp_no_property;
1195 res->attr.ma.irg_calling_conv = default_cc_mask;
1200 ir_type *new_type_method(ident *name, int n_param, int n_res) {
1201 return new_d_type_method(name, n_param, n_res, NULL);
1204 /* clone an existing method type */
1205 ir_type *clone_type_method(ir_type *tp, ident *prefix) {
1209 int n_params, n_res;
1212 assert(is_Method_type(tp));
1216 name = id_mangle(prefix, name);
1219 n_params = tp->attr.ma.n_params;
1220 n_res = tp->attr.ma.n_res;
1223 res = new_type(type_method, mode, name, db);
1225 res->flags = tp->flags;
1226 res->assoc_type = tp->assoc_type;
1227 res->size = tp->size;
1228 res->attr.ma.n_params = n_params;
1229 res->attr.ma.params = XMALLOCN(tp_ent_pair, n_params);
1230 memcpy(res->attr.ma.params, tp->attr.ma.params, n_params * sizeof(res->attr.ma.params[0]));
1231 res->attr.ma.value_params = tp->attr.ma.value_params;
1232 res->attr.ma.n_res = n_res;
1233 res->attr.ma.res_type = XMALLOCN(tp_ent_pair, n_res);
1234 memcpy(res->attr.ma.res_type, tp->attr.ma.res_type, n_res * sizeof(res->attr.ma.res_type[0]));
1235 res->attr.ma.value_ress = tp->attr.ma.value_ress;
1236 res->attr.ma.variadicity = tp->attr.ma.variadicity;
1237 res->attr.ma.first_variadic_param = tp->attr.ma.first_variadic_param;
1238 res->attr.ma.additional_properties = tp->attr.ma.additional_properties;
1239 res->attr.ma.irg_calling_conv = tp->attr.ma.irg_calling_conv;
1244 void free_method_entities(ir_type *method) {
1246 assert(method && (method->type_op == type_method));
1249 /* Attention: also frees entities in value parameter subtypes! */
1250 void free_method_attrs(ir_type *method) {
1251 assert(method && (method->type_op == type_method));
1252 free(method->attr.ma.params);
1253 free(method->attr.ma.res_type);
1254 /* cannot free it yet, type could be cloned ...
1255 if (method->attr.ma.value_params) {
1256 free_type_entities(method->attr.ma.value_params);
1257 free_type(method->attr.ma.value_params);
1260 if (method->attr.ma.value_ress) {
1261 free_type_entities(method->attr.ma.value_ress);
1262 free_type(method->attr.ma.value_ress);
1266 /* manipulate private fields of method. */
1267 int (get_method_n_params)(const ir_type *method) {
1268 return _get_method_n_params(method);
1271 /* Returns the type of the parameter at position pos of a method. */
1272 ir_type *get_method_param_type(ir_type *method, int pos) {
1274 assert(method && (method->type_op == type_method));
1275 assert(pos >= 0 && pos < get_method_n_params(method));
1276 res = method->attr.ma.params[pos].tp;
1277 assert(res != NULL && "empty method param type");
1278 return method->attr.ma.params[pos].tp = skip_tid(res);
1281 void set_method_param_type(ir_type *method, int pos, ir_type *tp) {
1282 assert(method && (method->type_op == type_method));
1283 assert(pos >= 0 && pos < get_method_n_params(method));
1284 method->attr.ma.params[pos].tp = tp;
1285 /* If information constructed set pass-by-value representation. */
1286 if (method->attr.ma.value_params) {
1287 assert(get_method_n_params(method) == get_struct_n_members(method->attr.ma.value_params));
1288 set_entity_type(get_struct_member(method->attr.ma.value_params, pos), tp);
1292 /* Returns an ident representing the parameters name. Returns NULL if not set.
1293 For debug support only. */
1294 ident *get_method_param_ident(ir_type *method, int pos) {
1295 assert(method && (method->type_op == type_method));
1296 assert(pos >= 0 && pos < get_method_n_params(method));
1297 return method->attr.ma.params[pos].param_name;
1300 /* Returns a string representing the parameters name. Returns NULL if not set.
1301 For debug support only. */
1302 const char *get_method_param_name(ir_type *method, int pos) {
1303 ident *id = get_method_param_ident(method, pos);
1304 return id ? get_id_str(id) : NULL;
1307 /* Sets an ident representing the parameters name. For debug support only. */
1308 void set_method_param_ident(ir_type *method, int pos, ident *id) {
1309 assert(method && (method->type_op == type_method));
1310 assert(pos >= 0 && pos < get_method_n_params(method));
1311 method->attr.ma.params[pos].param_name = id;
1314 /* Returns an entity that represents the copied value argument. Only necessary
1315 for compounds passed by value. */
1316 ir_entity *get_method_value_param_ent(ir_type *method, int pos) {
1317 assert(method && (method->type_op == type_method));
1318 assert(pos >= 0 && pos < get_method_n_params(method));
1320 if (!method->attr.ma.value_params) {
1321 /* parameter value type not created yet, build */
1322 method->attr.ma.value_params
1323 = build_value_type(id_mangle_u(get_type_ident(method), value_params_suffix),
1324 get_method_n_params(method), method->attr.ma.params);
1327 * build_value_type() sets the method->attr.ma.value_params type as default if
1330 assert((get_entity_type(method->attr.ma.params[pos].ent) != method->attr.ma.value_params)
1331 && "param type not yet set");
1332 return method->attr.ma.params[pos].ent;
1336 * Sets the type that represents the copied value arguments.
1338 void set_method_value_param_type(ir_type *method, ir_type *tp) {
1341 assert(method && (method->type_op == type_method));
1342 assert(is_value_param_type(tp));
1343 assert(get_method_n_params(method) == get_struct_n_members(tp));
1345 method->attr.ma.value_params = tp;
1347 n = get_struct_n_members(tp);
1348 for (i = 0; i < n; i++)
1350 ir_entity *ent = get_struct_member(tp, i);
1351 method->attr.ma.params[i].ent = ent;
1356 * Returns a type that represents the copied value arguments.
1358 ir_type *get_method_value_param_type(const ir_type *method) {
1359 assert(method && (method->type_op == type_method));
1360 return method->attr.ma.value_params;
1363 int (get_method_n_ress)(const ir_type *method) {
1364 return _get_method_n_ress(method);
1367 ir_type *get_method_res_type(ir_type *method, int pos) {
1369 assert(method && (method->type_op == type_method));
1370 assert(pos >= 0 && pos < get_method_n_ress(method));
1371 res = method->attr.ma.res_type[pos].tp;
1372 assert(res != NULL && "empty method return type");
1373 return method->attr.ma.res_type[pos].tp = skip_tid(res);
1376 void set_method_res_type(ir_type *method, int pos, ir_type *tp) {
1377 assert(method && (method->type_op == type_method));
1378 assert(pos >= 0 && pos < get_method_n_ress(method));
1379 /* set the result ir_type */
1380 method->attr.ma.res_type[pos].tp = tp;
1381 /* If information constructed set pass-by-value representation. */
1382 if (method->attr.ma.value_ress) {
1383 assert(get_method_n_ress(method) == get_struct_n_members(method->attr.ma.value_ress));
1384 set_entity_type(get_struct_member(method->attr.ma.value_ress, pos), tp);
1388 /* Returns an entity that represents the copied value result. Only necessary
1389 for compounds passed by value. */
1390 ir_entity *get_method_value_res_ent(ir_type *method, int pos) {
1391 assert(method && (method->type_op == type_method));
1392 assert(pos >= 0 && pos < get_method_n_ress(method));
1394 if (!method->attr.ma.value_ress) {
1395 /* result value type not created yet, build */
1396 method->attr.ma.value_ress
1397 = build_value_type(id_mangle_u(get_type_ident(method), value_ress_suffix),
1398 get_method_n_ress(method), method->attr.ma.res_type);
1401 * build_value_type() sets the method->attr.ma.value_ress type as default if
1404 assert((get_entity_type(method->attr.ma.res_type[pos].ent) != method->attr.ma.value_ress)
1405 && "result type not yet set");
1407 return method->attr.ma.res_type[pos].ent;
1411 * Returns a type that represents the copied value results.
1413 ir_type *get_method_value_res_type(const ir_type *method) {
1414 assert(method && (method->type_op == type_method));
1415 return method->attr.ma.value_ress;
1418 /* Returns the null-terminated name of this variadicity. */
1419 const char *get_variadicity_name(ir_variadicity vari) {
1420 #define X(a) case a: return #a
1422 X(variadicity_non_variadic);
1423 X(variadicity_variadic);
1430 ir_variadicity get_method_variadicity(const ir_type *method) {
1431 assert(method && (method->type_op == type_method));
1432 return method->attr.ma.variadicity;
1435 void set_method_variadicity(ir_type *method, ir_variadicity vari) {
1436 assert(method && (method->type_op == type_method));
1437 method->attr.ma.variadicity = vari;
1441 * Returns the first variadic parameter index of a type.
1442 * If this index was NOT set, the index of the last parameter
1443 * of the method type plus one is returned for variadic functions.
1444 * Non-variadic function types always return -1 here.
1446 int get_method_first_variadic_param_index(const ir_type *method) {
1447 assert(method && (method->type_op == type_method));
1449 if (method->attr.ma.variadicity == variadicity_non_variadic)
1452 if (method->attr.ma.first_variadic_param == -1)
1453 return get_method_n_params(method);
1454 return method->attr.ma.first_variadic_param;
1458 * Sets the first variadic parameter index. This allows to specify
1459 * a complete call type (containing the type of all parameters)
1460 * but still have the knowledge, which parameter must be passed as
1463 void set_method_first_variadic_param_index(ir_type *method, int index) {
1464 assert(method && (method->type_op == type_method));
1465 assert(index >= 0 && index <= get_method_n_params(method));
1467 method->attr.ma.first_variadic_param = index;
1470 unsigned (get_method_additional_properties)(const ir_type *method) {
1471 return _get_method_additional_properties(method);
1474 void (set_method_additional_properties)(ir_type *method, unsigned mask) {
1475 _set_method_additional_properties(method, mask);
1478 void (set_method_additional_property)(ir_type *method, mtp_additional_property flag) {
1479 _set_method_additional_property(method, flag);
1482 /* Returns the calling convention of an entities graph. */
1483 unsigned (get_method_calling_convention)(const ir_type *method) {
1484 return _get_method_calling_convention(method);
1487 /* Sets the calling convention of an entities graph. */
1488 void (set_method_calling_convention)(ir_type *method, unsigned cc_mask) {
1489 _set_method_calling_convention(method, cc_mask);
1492 /* Returns the number of registers parameters, 0 means default. */
1493 unsigned get_method_n_regparams(ir_type *method) {
1494 unsigned cc = get_method_calling_convention(method);
1495 assert(IS_FASTCALL(cc));
1497 return cc & ~cc_bits;
1500 /* Sets the number of registers parameters, 0 means default. */
1501 void set_method_n_regparams(ir_type *method, unsigned n_regs) {
1502 unsigned cc = get_method_calling_convention(method);
1503 assert(IS_FASTCALL(cc));
1505 set_method_calling_convention(method, (cc & cc_bits) | (n_regs & ~cc_bits));
1509 int (is_Method_type)(const ir_type *method) {
1510 return _is_method_type(method);
1513 /*-----------------------------------------------------------------*/
1515 /*-----------------------------------------------------------------*/
1517 /* create a new type uni */
1518 ir_type *new_d_type_union(ident *name, dbg_info *db) {
1519 ir_type *res = new_type(type_union, NULL, name, db);
1521 res->attr.ua.members = NEW_ARR_F(ir_entity *, 0);
1526 ir_type *new_type_union(ident *name) {
1527 return new_d_type_union(name, NULL);
1530 void free_union_entities(ir_type *uni) {
1532 assert(uni && (uni->type_op == type_union));
1533 for (i = get_union_n_members(uni) - 1; i >= 0; --i)
1534 free_entity(get_union_member(uni, i));
1537 void free_union_attrs (ir_type *uni) {
1538 assert(uni && (uni->type_op == type_union));
1539 DEL_ARR_F(uni->attr.ua.members);
1542 /* manipulate private fields of union */
1543 int get_union_n_members(const ir_type *uni) {
1544 assert(uni && (uni->type_op == type_union));
1545 return ARR_LEN(uni->attr.ua.members);
1548 void add_union_member(ir_type *uni, ir_entity *member) {
1549 assert(uni && (uni->type_op == type_union));
1550 assert(uni != get_entity_type(member) && "recursive type");
1551 assert(get_type_state(uni) != layout_fixed);
1552 ARR_APP1(ir_entity *, uni->attr.ua.members, member);
1555 ir_entity *get_union_member(const ir_type *uni, int pos) {
1556 assert(uni && (uni->type_op == type_union));
1557 assert(pos >= 0 && pos < get_union_n_members(uni));
1558 return uni->attr.ua.members[pos];
1561 int get_union_member_index(const ir_type *uni, ir_entity *mem) {
1563 assert(uni && (uni->type_op == type_union));
1564 for (i = 0, n = get_union_n_members(uni); i < n; ++i)
1565 if (get_union_member(uni, i) == mem)
1570 void set_union_member(ir_type *uni, int pos, ir_entity *member) {
1571 assert(uni && (uni->type_op == type_union));
1572 assert(pos >= 0 && pos < get_union_n_members(uni));
1573 uni->attr.ua.members[pos] = member;
1576 void remove_union_member(ir_type *uni, ir_entity *member) {
1578 assert(uni && (uni->type_op == type_union));
1579 for (i = 0; i < (ARR_LEN(uni->attr.ua.members)); i++)
1580 if (uni->attr.ua.members[i] == member) {
1581 for(; i < (ARR_LEN(uni->attr.ua.members))-1; i++)
1582 uni->attr.ua.members[i] = uni->attr.ua.members[i+1];
1583 ARR_SETLEN(ir_entity*, uni->attr.ua.members, ARR_LEN(uni->attr.ua.members) - 1);
1589 int (is_Union_type)(const ir_type *uni) {
1590 return _is_union_type(uni);
1593 void set_union_size(ir_type *tp, unsigned size) {
1597 /*-----------------------------------------------------------------*/
1599 /*-----------------------------------------------------------------*/
1602 /* create a new type array -- set dimension sizes independently */
1603 ir_type *new_d_type_array(ident *name, int n_dimensions, ir_type *element_type, dbg_info *db) {
1607 ir_graph *rem = current_ir_graph;
1609 assert(!is_Method_type(element_type));
1611 res = new_type(type_array, NULL, name, db);
1612 res->attr.aa.n_dimensions = n_dimensions;
1613 res->attr.aa.lower_bound = XMALLOCNZ(ir_node*, n_dimensions);
1614 res->attr.aa.upper_bound = XMALLOCNZ(ir_node*, n_dimensions);
1615 res->attr.aa.order = XMALLOCNZ(int, n_dimensions);
1617 current_ir_graph = get_const_code_irg();
1618 unk = new_Unknown(mode_Iu);
1619 for (i = 0; i < n_dimensions; i++) {
1620 res->attr.aa.lower_bound[i] =
1621 res->attr.aa.upper_bound[i] = unk;
1622 res->attr.aa.order[i] = i;
1624 current_ir_graph = rem;
1626 res->attr.aa.element_type = element_type;
1627 new_entity(res, id_mangle_u(name, new_id_from_chars("elem_ent", 8)), element_type);
1632 ir_type *new_type_array(ident *name, int n_dimensions, ir_type *element_type) {
1633 return new_d_type_array(name, n_dimensions, element_type, NULL);
1636 void free_array_automatic_entities(ir_type *array) {
1637 assert(array && (array->type_op == type_array));
1638 free_entity(get_array_element_entity(array));
1641 void free_array_entities (ir_type *array) {
1643 assert(array && (array->type_op == type_array));
1646 void free_array_attrs (ir_type *array) {
1647 assert(array && (array->type_op == type_array));
1648 free(array->attr.aa.lower_bound);
1649 free(array->attr.aa.upper_bound);
1650 free(array->attr.aa.order);
1653 /* manipulate private fields of array ir_type */
1654 int get_array_n_dimensions (const ir_type *array) {
1655 assert(array && (array->type_op == type_array));
1656 return array->attr.aa.n_dimensions;
1660 set_array_bounds(ir_type *array, int dimension, ir_node * lower_bound, ir_node * upper_bound) {
1661 assert(array && (array->type_op == type_array));
1662 assert(lower_bound && "lower_bound node may not be NULL.");
1663 assert(upper_bound && "upper_bound node may not be NULL.");
1664 assert(dimension < array->attr.aa.n_dimensions && dimension >= 0);
1665 array->attr.aa.lower_bound[dimension] = lower_bound;
1666 array->attr.aa.upper_bound[dimension] = upper_bound;
1670 set_array_bounds_int(ir_type *array, int dimension, int lower_bound, int upper_bound) {
1671 ir_graph *rem = current_ir_graph;
1672 current_ir_graph = get_const_code_irg();
1673 set_array_bounds(array, dimension,
1674 new_Const_long(mode_Iu, lower_bound),
1675 new_Const_long(mode_Iu, upper_bound));
1676 current_ir_graph = rem;
1680 set_array_lower_bound(ir_type *array, int dimension, ir_node *lower_bound) {
1681 assert(array && (array->type_op == type_array));
1682 assert(lower_bound && "lower_bound node may not be NULL.");
1683 array->attr.aa.lower_bound[dimension] = lower_bound;
1686 void set_array_lower_bound_int(ir_type *array, int dimension, int lower_bound) {
1687 ir_graph *rem = current_ir_graph;
1688 current_ir_graph = get_const_code_irg();
1689 set_array_lower_bound(array, dimension,
1690 new_Const_long(mode_Iu, lower_bound));
1691 current_ir_graph = rem;
1694 set_array_upper_bound (ir_type *array, int dimension, ir_node * upper_bound) {
1695 assert(array && (array->type_op == type_array));
1696 assert(upper_bound && "upper_bound node may not be NULL.");
1697 array->attr.aa.upper_bound[dimension] = upper_bound;
1699 void set_array_upper_bound_int(ir_type *array, int dimension, int upper_bound) {
1700 ir_graph *rem = current_ir_graph;
1701 current_ir_graph = get_const_code_irg();
1702 set_array_upper_bound(array, dimension,
1703 new_Const_long(mode_Iu, upper_bound));
1704 current_ir_graph = rem;
1707 int has_array_lower_bound(const ir_type *array, int dimension) {
1708 assert(array && (array->type_op == type_array));
1709 return !is_Unknown(array->attr.aa.lower_bound[dimension]);
1712 ir_node *get_array_lower_bound(const ir_type *array, int dimension) {
1713 assert(array && (array->type_op == type_array));
1714 return array->attr.aa.lower_bound[dimension];
1717 long get_array_lower_bound_int(const ir_type *array, int dimension) {
1719 assert(array && (array->type_op == type_array));
1720 node = array->attr.aa.lower_bound[dimension];
1721 assert(is_Const(node));
1722 return get_tarval_long(get_Const_tarval(node));
1725 int has_array_upper_bound(const ir_type *array, int dimension) {
1726 assert(array && (array->type_op == type_array));
1727 return !is_Unknown(array->attr.aa.upper_bound[dimension]);
1730 ir_node *get_array_upper_bound(const ir_type *array, int dimension) {
1731 assert(array && (array->type_op == type_array));
1732 return array->attr.aa.upper_bound[dimension];
1735 long get_array_upper_bound_int(const ir_type *array, int dimension) {
1737 assert(array && (array->type_op == type_array));
1738 node = array->attr.aa.upper_bound[dimension];
1739 assert(is_Const(node));
1740 return get_tarval_long(get_Const_tarval(node));
1743 void set_array_order(ir_type *array, int dimension, int order) {
1744 assert(array && (array->type_op == type_array));
1745 array->attr.aa.order[dimension] = order;
1748 int get_array_order(const ir_type *array, int dimension) {
1749 assert(array && (array->type_op == type_array));
1750 return array->attr.aa.order[dimension];
1753 int find_array_dimension(const ir_type *array, int order) {
1756 assert(array && (array->type_op == type_array));
1758 for (dim = 0; dim < array->attr.aa.n_dimensions; ++dim) {
1759 if (array->attr.aa.order[dim] == order)
1765 void set_array_element_type(ir_type *array, ir_type *tp) {
1766 assert(array && (array->type_op == type_array));
1767 assert(!is_Method_type(tp));
1768 array->attr.aa.element_type = tp;
1771 ir_type *get_array_element_type(ir_type *array) {
1772 assert(array && (array->type_op == type_array));
1773 return array->attr.aa.element_type = skip_tid(array->attr.aa.element_type);
1776 void set_array_element_entity(ir_type *array, ir_entity *ent) {
1777 assert(array && (array->type_op == type_array));
1778 assert((get_entity_type(ent)->type_op != type_method));
1779 array->attr.aa.element_ent = ent;
1780 array->attr.aa.element_type = get_entity_type(ent);
1783 ir_entity *get_array_element_entity(const ir_type *array) {
1784 assert(array && (array->type_op == type_array));
1785 return array->attr.aa.element_ent;
1789 int (is_Array_type)(const ir_type *array) {
1790 return _is_array_type(array);
1793 void set_array_size(ir_type *tp, unsigned size) {
1794 /* FIXME: Here we should make some checks with the element type size */
1797 /*-----------------------------------------------------------------*/
1798 /* TYPE_ENUMERATION */
1799 /*-----------------------------------------------------------------*/
1801 /* create a new type enumeration -- set the enumerators independently */
1802 ir_type *new_d_type_enumeration(ident *name, int n_enums, dbg_info *db) {
1805 assert(n_enums >= 0);
1806 res = new_type(type_enumeration, NULL, name, db);
1807 res->attr.ea.enumer = NEW_ARR_F(ir_enum_const, n_enums);
1812 ir_type *new_type_enumeration(ident *name, int n_enums) {
1813 return new_d_type_enumeration(name, n_enums, NULL);
1816 void free_enumeration_entities(ir_type *enumeration) {
1818 assert(enumeration && (enumeration->type_op == type_enumeration));
1820 void free_enumeration_attrs(ir_type *enumeration) {
1821 assert(enumeration && (enumeration->type_op == type_enumeration));
1822 DEL_ARR_F(enumeration->attr.ea.enumer);
1825 /* manipulate fields of enumeration type. */
1826 int get_enumeration_n_enums(const ir_type *enumeration) {
1827 assert(enumeration && (enumeration->type_op == type_enumeration));
1828 return ARR_LEN(enumeration->attr.ea.enumer);
1831 /* create a new constant */
1832 void set_enumeration_const(ir_type *enumeration, int pos, ident *nameid, tarval *con) {
1833 assert(0 <= pos && pos < ARR_LEN(enumeration->attr.ea.enumer));
1834 enumeration->attr.ea.enumer[pos].nameid = nameid;
1835 enumeration->attr.ea.enumer[pos].value = con;
1836 enumeration->attr.ea.enumer[pos].owner = enumeration;
1839 ir_enum_const *get_enumeration_const(const ir_type *enumeration, int pos) {
1840 assert(enumeration && (enumeration->type_op == type_enumeration));
1841 assert(pos >= 0 && pos < get_enumeration_n_enums(enumeration));
1842 return &enumeration->attr.ea.enumer[pos];
1845 ir_type *get_enumeration_owner(const ir_enum_const *enum_cnst) {
1846 return enum_cnst->owner;
1849 void set_enumeration_value(ir_enum_const *enum_cnst, tarval *con) {
1850 enum_cnst->value = con;
1853 tarval *get_enumeration_value(const ir_enum_const *enum_cnst) {
1854 return enum_cnst->value;
1857 void set_enumeration_nameid(ir_enum_const *enum_cnst, ident *id) {
1858 enum_cnst->nameid = id;
1861 ident *get_enumeration_nameid(const ir_enum_const *enum_cnst) {
1862 return enum_cnst->nameid;
1865 const char *get_enumeration_name(const ir_enum_const *enum_cnst) {
1866 return get_id_str(enum_cnst->nameid);
1870 int (is_Enumeration_type)(const ir_type *enumeration) {
1871 return _is_enumeration_type(enumeration);
1874 void set_enumeration_mode(ir_type *tp, ir_mode *mode) {
1875 assert(mode_is_int(mode) && "Modes of enumerations must be integers");
1876 /* For pointer and enumeration size depends on the mode, but only byte size allowed. */
1877 assert((get_mode_size_bits(mode) % 8) == 0 && "unorthodox modes not implemented");
1879 tp->size = get_mode_size_bytes(mode);
1883 /*-----------------------------------------------------------------*/
1885 /*-----------------------------------------------------------------*/
1887 /* Create a new type pointer */
1888 ir_type *new_d_type_pointer(ident *name, ir_type *points_to, ir_mode *ptr_mode, dbg_info *db) {
1891 assert(mode_is_reference(ptr_mode));
1892 res = new_type(type_pointer, ptr_mode, name, db);
1893 res->attr.pa.points_to = points_to;
1894 assert((get_mode_size_bits(res->mode) % 8 == 0) && "unorthodox modes not implemented");
1895 res->size = get_mode_size_bytes(res->mode);
1896 res->flags |= tf_layout_fixed;
1901 ir_type *new_type_pointer(ident *name, ir_type *points_to, ir_mode *ptr_mode) {
1902 return new_d_type_pointer(name, points_to, ptr_mode, NULL);
1905 void free_pointer_entities(ir_type *pointer) {
1907 assert(pointer && (pointer->type_op == type_pointer));
1910 void free_pointer_attrs(ir_type *pointer) {
1912 assert(pointer && (pointer->type_op == type_pointer));
1915 /* manipulate fields of type_pointer */
1916 void set_pointer_points_to_type(ir_type *pointer, ir_type *tp) {
1917 assert(pointer && (pointer->type_op == type_pointer));
1918 pointer->attr.pa.points_to = tp;
1921 ir_type *get_pointer_points_to_type(ir_type *pointer) {
1922 assert(pointer && (pointer->type_op == type_pointer));
1923 return pointer->attr.pa.points_to = skip_tid(pointer->attr.pa.points_to);
1927 int (is_Pointer_type)(const ir_type *pointer) {
1928 return _is_pointer_type(pointer);
1931 void set_pointer_mode(ir_type *tp, ir_mode *mode) {
1932 assert(mode_is_reference(mode) && "Modes of pointers must be references");
1933 /* For pointer and enumeration size depends on the mode, but only byte size allowed. */
1934 assert((get_mode_size_bits(mode) & 7) == 0 && "unorthodox modes not implemented");
1936 tp->size = get_mode_size_bytes(mode);
1940 /* Returns the first pointer type that has as points_to tp.
1941 * Not efficient: O(#types).
1942 * If not found returns firm_unknown_type. */
1943 ir_type *find_pointer_type_to_type (ir_type *tp) {
1944 int i, n = get_irp_n_types();
1945 for (i = 0; i < n; ++i) {
1946 ir_type *found = get_irp_type(i);
1947 if (is_Pointer_type(found) && get_pointer_points_to_type(found) == tp)
1950 return firm_unknown_type;
1954 /*-----------------------------------------------------------------*/
1955 /* TYPE_PRIMITIVE */
1956 /*-----------------------------------------------------------------*/
1958 /* create a new type primitive */
1959 ir_type *new_d_type_primitive(ident *name, ir_mode *mode, dbg_info *db) {
1960 ir_type *res = new_type(type_primitive, mode, name, db);
1961 res->size = get_mode_size_bytes(mode);
1962 res->flags |= tf_layout_fixed;
1963 res->attr.ba.base_type = NULL;
1968 ir_type *new_type_primitive(ident *name, ir_mode *mode) {
1969 return new_d_type_primitive(name, mode, NULL);
1973 int (is_Primitive_type)(const ir_type *primitive) {
1974 return _is_primitive_type(primitive);
1977 void set_primitive_mode(ir_type *tp, ir_mode *mode) {
1978 /* Modes of primitives must be data */
1979 assert(mode_is_data(mode));
1981 /* For primitive size depends on the mode. */
1982 tp->size = get_mode_size_bytes(mode);
1986 /* Return the base type of a primitive (bitfield) type or NULL if none. */
1987 ir_type *get_primitive_base_type(ir_type *tp) {
1988 assert(is_Primitive_type(tp));
1989 return tp->attr.ba.base_type;
1992 /* Sets the base type of a primitive (bitfield) type. */
1993 void set_primitive_base_type(ir_type *tp, ir_type *base_tp) {
1994 assert(is_Primitive_type(tp));
1995 tp->attr.ba.base_type = base_tp;
1998 /*-----------------------------------------------------------------*/
1999 /* common functionality */
2000 /*-----------------------------------------------------------------*/
2003 int (is_atomic_type)(const ir_type *tp) {
2004 return _is_atomic_type(tp);
2008 * Gets the number of elements in a firm compound type.
2010 int get_compound_n_members(const ir_type *tp) {
2011 const tp_op *op = get_type_tpop(tp);
2014 if (op->ops.get_n_members)
2015 res = op->ops.get_n_members(tp);
2017 assert(0 && "no member count for this type");
2023 * Gets the member of a firm compound type at position pos.
2025 ir_entity *get_compound_member(const ir_type *tp, int pos) {
2026 const tp_op *op = get_type_tpop(tp);
2027 ir_entity *res = NULL;
2029 if (op->ops.get_member)
2030 res = op->ops.get_member(tp, pos);
2032 assert(0 && "no members in this type");
2037 /* Returns index of member in tp, -1 if not contained. */
2038 int get_compound_member_index(const ir_type *tp, ir_entity *member) {
2039 const tp_op *op = get_type_tpop(tp);
2042 if (op->ops.get_member_index)
2043 index = op->ops.get_member_index(tp, member);
2045 assert(0 && "no members in this type");
2050 int is_compound_type(const ir_type *tp) {
2051 assert(tp && tp->kind == k_type);
2052 return tp->type_op->flags & TP_OP_FLAG_COMPOUND;
2055 int is_code_type(const ir_type *tp) {
2056 assert(tp && tp->kind == k_type);
2057 return tp->type_op == tpop_code;
2060 /* Checks, whether a type is a frame type */
2061 int is_frame_type(const ir_type *tp) {
2062 return tp->flags & tf_frame_type;
2065 /* Checks, whether a type is a value parameter type */
2066 int is_value_param_type(const ir_type *tp) {
2067 return tp->flags & tf_value_param_type;
2070 /* Checks, whether a type is a lowered type */
2071 int is_lowered_type(const ir_type *tp) {
2072 return tp->flags & tf_lowered_type;
2075 /* Makes a new value type. */
2076 ir_type *new_type_value(ident *name) {
2077 ir_type *res = new_type_struct(name);
2079 res->flags |= tf_value_param_type;
2081 /* Remove type from type list. Must be treated differently than other types. */
2082 remove_irp_type(res);
2087 /* Makes a new frame type. */
2088 ir_type *new_type_frame(ident *name) {
2089 ir_type *res = new_type_class(name);
2091 res->flags |= tf_frame_type;
2093 /* Remove type from type list. Must be treated differently than other types. */
2094 remove_irp_type(res);
2096 /* It is not possible to derive from the frame type. Set the final flag. */
2097 set_class_final(res, 1);
2102 /* Makes a clone of a frame type. */
2103 ir_type *clone_frame_type(ir_type *type) {
2107 assert(is_frame_type(type));
2108 /* the entity link resource should be allocated if this function is called */
2109 assert(irp_resources_reserved(irp) & IR_RESOURCE_ENTITY_LINK);
2111 res = new_type_frame(type->name);
2112 for (i = 0, n = get_class_n_members(type); i < n; ++i) {
2113 ir_entity *ent = get_class_member(type, i);
2114 ir_entity *nent = copy_entity_own(ent, res);
2115 set_entity_link(ent, nent);
2116 set_entity_link(nent, ent);
2121 /* Sets a lowered type for a type. This sets both associations. */
2122 void set_lowered_type(ir_type *tp, ir_type *lowered_type) {
2123 assert(is_type(tp) && is_type(lowered_type));
2124 lowered_type->flags |= tf_lowered_type;
2125 tp->assoc_type = lowered_type;
2126 lowered_type->assoc_type = tp;
2130 * Gets the lowered/unlowered type of a type or NULL if this type
2131 * has no lowered/unlowered one.
2133 ir_type *get_associated_type(const ir_type *tp) {
2134 return tp->assoc_type;
2137 /* set the type size for the unknown and none ir_type */
2138 void set_default_size(ir_type *tp, unsigned size) {
2143 * Allocate an area of size bytes aligned at alignment
2144 * at the start or the end of a frame type.
2145 * The frame type must have already an fixed layout.
2147 ir_entity *frame_alloc_area(ir_type *frame_type, int size, unsigned alignment, int at_start) {
2152 unsigned frame_align;
2153 int i, offset, frame_size;
2154 static unsigned area_cnt = 0;
2155 static ir_type *a_byte = NULL;
2157 assert(is_frame_type(frame_type));
2158 assert(get_type_state(frame_type) == layout_fixed);
2159 assert(get_type_alignment_bytes(frame_type) > 0);
2160 set_type_state(frame_type, layout_undefined);
2163 a_byte = new_type_primitive(new_id_from_chars("byte", 4), mode_Bu);
2165 snprintf(buf, sizeof(buf), "area%u", area_cnt++);
2166 name = new_id_from_str(buf);
2168 /* align the size */
2169 frame_align = get_type_alignment_bytes(frame_type);
2170 size = (size + frame_align - 1) & ~(frame_align - 1);
2172 tp = new_type_array(id_mangle_u(get_type_ident(frame_type), name), 1, a_byte);
2173 set_array_bounds_int(tp, 0, 0, size);
2174 set_type_alignment_bytes(tp, alignment);
2176 frame_size = get_type_size_bytes(frame_type);
2178 /* fix all offsets so far */
2179 for (i = get_class_n_members(frame_type) - 1; i >= 0; --i) {
2180 ir_entity *ent = get_class_member(frame_type, i);
2182 set_entity_offset(ent, get_entity_offset(ent) + size);
2184 /* calculate offset and new type size */
2188 /* increase size to match alignment... */
2189 if (alignment > frame_align) {
2190 frame_align = alignment;
2191 set_type_alignment_bytes(frame_type, frame_align);
2192 frame_size = (frame_size + frame_align - 1) & ~(frame_align - 1);
2195 /* calculate offset and new type size */
2196 offset = (frame_size + alignment - 1) & ~(alignment - 1);
2197 frame_size = offset + size;
2200 area = new_entity(frame_type, name, tp);
2201 set_entity_offset(area, offset);
2202 set_type_size_bytes(frame_type, frame_size);
2204 /* mark this entity as compiler generated */
2205 set_entity_compiler_generated(area, 1);
2207 set_type_state(frame_type, layout_fixed);