2 * Copyright (C) 1995-2007 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
74 /*-----------------------------------------------------------------*/
76 /*-----------------------------------------------------------------*/
78 ir_type *firm_none_type; ir_type *get_none_type(void) { return firm_none_type; }
79 ir_type *firm_unknown_type; ir_type *get_unknown_type(void) { return firm_unknown_type; }
82 /* Suffixes added to types used for pass-by-value representations. */
83 static ident *value_params_suffix = NULL;
84 static ident *value_ress_suffix = NULL;
86 /** The default calling convention for method types. */
87 static unsigned default_cc_mask;
89 /* return the default calling convention for method types */
90 unsigned get_default_cc_mask(void) {
91 return default_cc_mask;
94 /* Initialize the type module. */
95 void firm_init_type(dbg_info *builtin_db, unsigned def_cc_mask)
97 default_cc_mask = def_cc_mask;
98 value_params_suffix = new_id_from_str(VALUE_PARAMS_SUFFIX);
99 value_ress_suffix = new_id_from_str(VALUE_RESS_SUFFIX);
101 /* construct none and unknown type. */
102 firm_none_type = new_type(tpop_none, mode_BAD, new_id_from_str("type_none"), builtin_db);
103 set_type_size_bits(firm_none_type, 0);
104 set_type_state (firm_none_type, layout_fixed);
105 remove_irp_type(firm_none_type);
107 firm_unknown_type = new_type(tpop_unknown, mode_ANY, new_id_from_str("type_unknown"), builtin_db);
108 set_type_size_bits(firm_unknown_type, 0);
109 set_type_state (firm_unknown_type, layout_fixed);
110 remove_irp_type(firm_unknown_type);
113 /** the global type visited flag */
114 unsigned long firm_type_visited;
116 void (set_master_type_visited)(unsigned long val) { _set_master_type_visited(val); }
117 unsigned long (get_master_type_visited)(void) { return _get_master_type_visited(); }
118 void (inc_master_type_visited)(void) { _inc_master_type_visited(); }
121 * Creates a new type representation.
124 new_type(tp_op *type_op, ir_mode *mode, ident *name, dbg_info *db) {
128 assert(type_op != type_id);
129 assert(!id_contains_char(name, ' ') && "type name should not contain spaces");
131 node_size = offsetof(ir_type, attr) + type_op->attr_size;
132 res = xmalloc(node_size);
133 memset(res, 0, node_size);
136 res->type_op = type_op;
139 res->visibility = visibility_external_allocated;
140 res->flags = tf_none;
146 res->assoc_type = NULL;
148 res->nr = get_irp_new_node_nr();
149 #endif /* defined DEBUG_libfirm */
151 add_irp_type(res); /* Remember the new type global. */
156 void free_type(ir_type *tp) {
157 const tp_op *op = get_type_tpop(tp);
159 if ((get_type_tpop(tp) == tpop_none) || (get_type_tpop(tp) == tpop_unknown))
161 /* Remove from list of all types */
163 /* Free the attributes of the type. */
165 /* Free entities automatically allocated with the ir_type */
166 if (op->ops.free_auto_entities)
167 op->ops.free_auto_entities(tp);
168 /* And now the type itself... */
173 void free_type_entities(ir_type *tp) {
174 const tp_op *tpop = get_type_tpop(tp);
176 if (tpop->ops.free_entities)
177 tpop->ops.free_entities(tp);
180 void free_type_attrs(ir_type *tp) {
181 const tp_op *tpop = get_type_tpop(tp);
183 if (tpop->ops.free_attrs)
184 tpop->ops.free_attrs(tp);
187 /* set/get the link field */
188 void *(get_type_link)(const ir_type *tp) {
189 return _get_type_link(tp);
192 void (set_type_link)(ir_type *tp, void *l) {
193 _set_type_link(tp, l);
196 const tp_op *(get_type_tpop)(const ir_type *tp) {
197 return _get_type_tpop(tp);
200 ident *(get_type_tpop_nameid)(const ir_type *tp) {
201 return _get_type_tpop_nameid(tp);
204 const char* get_type_tpop_name(const ir_type *tp) {
205 assert(tp && tp->kind == k_type);
206 return get_id_str(tp->type_op->name);
209 tp_opcode (get_type_tpop_code)(const ir_type *tp) {
210 return _get_type_tpop_code(tp);
213 ir_mode *(get_type_mode)(const ir_type *tp) {
214 return _get_type_mode(tp);
217 void set_type_mode(ir_type *tp, ir_mode *mode) {
218 const tp_op *tpop = get_type_tpop(tp);
220 if (tpop->ops.set_type_mode)
221 tpop->ops.set_type_mode(tp, mode);
223 assert(0 && "setting a mode is NOT allowed for this type");
226 ident *(get_type_ident)(const ir_type *tp) {
227 return _get_type_ident(tp);
230 void (set_type_ident)(ir_type *tp, ident* id) {
231 _set_type_ident(tp, id);
234 /* Outputs a unique number for this node */
235 long get_type_nr(const ir_type *tp) {
240 return (long)PTR_TO_INT(tp);
244 const char* get_type_name(const ir_type *tp) {
245 assert(tp && tp->kind == k_type);
246 return (get_id_str(tp->name));
249 int (get_type_size_bytes)(const ir_type *tp) {
250 return _get_type_size_bytes(tp);
253 int (get_type_size_bits)(const ir_type *tp) {
254 return _get_type_size_bits(tp);
258 ir_visibility get_type_visibility (const ir_type *tp) {
260 visibility res = visibility_local;
261 if (is_compound_type(tp)) {
263 if (is_Array_type(tp)) {
264 ir_entity *mem = get_array_element_entity(tp);
265 if (get_entity_visibility(mem) != visibility_local)
266 res = visibility_external_visible;
268 int i, n_mems = get_compound_n_members(tp);
269 for (i = 0; i < n_mems; ++i) {
270 ir_entity *mem = get_compound_member(tp, i);
271 if (get_entity_visibility(mem) != visibility_local)
272 res = visibility_external_visible;
279 return tp->visibility;
282 void set_type_visibility (ir_type *tp, ir_visibility v) {
285 /* check for correctness */
286 if (v != visibility_external_allocated) {
287 visibility res = visibility_local;
288 if (is_compound_type(tp)) {
289 if (is_Array_type(tp)) {
290 ir_entity *mem = get_array_element_entity(tp);
291 if (get_entity_visibility(mem) > res)
292 res = get_entity_visibility(mem);
294 int i, n_mems = get_compound_n_members(tp);
295 for (i = 0; i < n_mems; ++i) {
296 ir_entity *mem = get_compound_member(tp, i);
297 if (get_entity_visibility(mem) > res)
298 res = get_entity_visibility(mem);
309 set_type_size_bits(ir_type *tp, int size) {
310 const tp_op *tpop = get_type_tpop(tp);
312 if (tpop->ops.set_type_size)
313 tpop->ops.set_type_size(tp, size);
315 assert(0 && "Cannot set size for this type");
319 set_type_size_bytes(ir_type *tp, int size) {
320 set_type_size_bits(tp, 8*size);
323 int get_type_alignment_bytes(ir_type *tp) {
324 int align = get_type_alignment_bits(tp);
326 return align < 0 ? align : (align + 7) >> 3;
329 int get_type_alignment_bits(ir_type *tp) {
335 /* alignment NOT set calculate it "on demand" */
337 align = get_mode_size_bits(tp->mode);
338 else if (is_Array_type(tp))
339 align = get_type_alignment_bits(get_array_element_type(tp));
340 else if (is_compound_type(tp)) {
341 int i, n = get_compound_n_members(tp);
344 for (i = 0; i < n; ++i) {
345 ir_type *t = get_entity_type(get_compound_member(tp, i));
346 int a = get_type_alignment_bits(t);
352 else if (is_Method_type(tp))
362 set_type_alignment_bits(ir_type *tp, int align) {
363 assert(tp && tp->kind == k_type);
364 assert((align == -1 || (align & (align - 1)) == 0) && "type alignment not power of two");
365 /* Methods don't have an alignment. */
366 if (tp->type_op != type_method) {
372 set_type_alignment_bytes(ir_type *tp, int align) {
374 set_type_alignment_bits(tp, -1);
376 set_type_alignment_bits(tp, 8*align);
380 /* Returns a human readable string for the enum entry. */
381 const char *get_type_state_name(type_state s) {
382 #define X(a) case a: return #a;
392 type_state (get_type_state)(const ir_type *tp) {
393 return _get_type_state(tp);
397 set_type_state(ir_type *tp, type_state state) {
398 assert(tp && tp->kind == k_type);
400 if ((tp->type_op == type_pointer) || (tp->type_op == type_primitive) ||
401 (tp->type_op == type_method))
404 /* Just a correctness check: */
405 if (state == layout_fixed) {
407 switch (get_type_tpop_code(tp)) {
409 assert(get_type_size_bits(tp) > -1);
410 if (tp != get_glob_type()) {
411 int n_mem = get_class_n_members(tp);
412 for (i = 0; i < n_mem; i++) {
413 assert(get_entity_offset(get_class_member(tp, i)) > -1);
415 assert(is_Method_type(get_entity_type(get_class_member(tp, i))) ||
416 (get_entity_allocation(get_class_member(tp, i)) == allocation_automatic));
422 assert(get_type_size_bits(tp) > -1);
423 for (i = 0; i < get_struct_n_members(tp); i++) {
424 assert(get_entity_offset(get_struct_member(tp, i)) > -1);
425 assert((get_entity_allocation(get_struct_member(tp, i)) == allocation_automatic));
434 Assure that only innermost dimension is dynamic? */
436 case tpo_enumeration:
438 assert(get_type_mode != NULL);
439 for (i = get_enumeration_n_enums(tp) - 1; i >= 0; --i) {
440 ir_enum_const *ec = get_enumeration_const(tp, i);
441 tarval *tv = get_enumeration_value(ec);
442 assert(tv != NULL && tv != tarval_bad);
449 if (state == layout_fixed)
450 tp->flags |= tf_layout_fixed;
452 tp->flags &= ~tf_layout_fixed;
455 unsigned long (get_type_visited)(const ir_type *tp) {
456 return _get_type_visited(tp);
459 void (set_type_visited)(ir_type *tp, unsigned long num) {
460 _set_type_visited(tp, num);
463 /* Sets visited field in type to type_visited. */
464 void (mark_type_visited)(ir_type *tp) {
465 _mark_type_visited(tp);
468 int (type_visited)(const ir_type *tp) {
469 return _type_visited(tp);
472 int (type_not_visited)(const ir_type *tp) {
473 return _type_not_visited(tp);
476 int (is_type)(const void *thing) {
477 return _is_type(thing);
480 /* Checks whether two types are structural equal.*/
481 int equal_type(ir_type *typ1, ir_type *typ2) {
486 if (typ1 == typ2) return 1;
488 if ((get_type_tpop_code(typ1) != get_type_tpop_code(typ2)) ||
489 (get_type_ident(typ1) != get_type_ident(typ2)) ||
490 (get_type_mode(typ1) != get_type_mode(typ2)) ||
491 (get_type_state(typ1) != get_type_state(typ2)))
493 if ((get_type_state(typ1) == layout_fixed) &&
494 (get_type_size_bits(typ1) != get_type_size_bits(typ2)))
497 switch (get_type_tpop_code(typ1)) {
499 if (get_class_n_members(typ1) != get_class_n_members(typ2)) return 0;
500 if (get_class_n_subtypes(typ1) != get_class_n_subtypes(typ2)) return 0;
501 if (get_class_n_supertypes(typ1) != get_class_n_supertypes(typ2)) return 0;
502 if (get_class_peculiarity(typ1) != get_class_peculiarity(typ2)) return 0;
503 /** Compare the members **/
504 m = alloca(sizeof(ir_entity *) * get_class_n_members(typ1));
505 memset(m, 0, sizeof(ir_entity *) * get_class_n_members(typ1));
506 /* First sort the members of typ2 */
507 for (i = 0; i < get_class_n_members(typ1); i++) {
508 ir_entity *e1 = get_class_member(typ1, i);
509 for (j = 0; j < get_class_n_members(typ2); j++) {
510 ir_entity *e2 = get_class_member(typ2, j);
511 if (get_entity_name(e1) == get_entity_name(e2))
515 for (i = 0; i < get_class_n_members(typ1); i++) {
516 if (!m[i] || /* Found no counterpart */
517 !equal_entity(get_class_member(typ1, i), m[i]))
520 /** Compare the supertypes **/
521 t = alloca(sizeof(ir_entity *) * get_class_n_supertypes(typ1));
522 memset(t, 0, sizeof(ir_entity *) * get_class_n_supertypes(typ1));
523 /* First sort the supertypes of typ2 */
524 for (i = 0; i < get_class_n_supertypes(typ1); i++) {
525 ir_type *t1 = get_class_supertype(typ1, i);
526 for (j = 0; j < get_class_n_supertypes(typ2); j++) {
527 ir_type *t2 = get_class_supertype(typ2, j);
528 if (get_type_ident(t2) == get_type_ident(t1))
532 for (i = 0; i < get_class_n_supertypes(typ1); i++) {
533 if (!t[i] || /* Found no counterpart */
534 get_class_supertype(typ1, i) != t[i])
539 if (get_struct_n_members(typ1) != get_struct_n_members(typ2)) return 0;
540 m = alloca(sizeof(ir_entity *) * get_struct_n_members(typ1));
541 memset(m, 0, sizeof(ir_entity *) * get_struct_n_members(typ1));
542 /* First sort the members of lt */
543 for (i = 0; i < get_struct_n_members(typ1); i++) {
544 ir_entity *e1 = get_struct_member(typ1, i);
545 for (j = 0; j < get_struct_n_members(typ2); j++) {
546 ir_entity *e2 = get_struct_member(typ2, j);
547 if (get_entity_name(e1) == get_entity_name(e2))
551 for (i = 0; i < get_struct_n_members(typ1); i++) {
552 if (!m[i] || /* Found no counterpart */
553 !equal_entity(get_struct_member(typ1, i), m[i]))
558 int n_param1, n_param2;
560 if (get_method_variadicity(typ1) != get_method_variadicity(typ2)) return 0;
561 if (get_method_n_ress(typ1) != get_method_n_ress(typ2)) return 0;
562 if (get_method_calling_convention(typ1) !=
563 get_method_calling_convention(typ2)) return 0;
565 if (get_method_variadicity(typ1) == variadicity_non_variadic) {
566 n_param1 = get_method_n_params(typ1);
567 n_param2 = get_method_n_params(typ2);
570 n_param1 = get_method_first_variadic_param_index(typ1);
571 n_param2 = get_method_first_variadic_param_index(typ2);
574 if (n_param1 != n_param2) return 0;
576 for (i = 0; i < n_param1; i++) {
577 if (!equal_type(get_method_param_type(typ1, i), get_method_param_type(typ2, i)))
580 for (i = 0; i < get_method_n_ress(typ1); i++) {
581 if (!equal_type(get_method_res_type(typ1, i), get_method_res_type(typ2, i)))
586 if (get_union_n_members(typ1) != get_union_n_members(typ2)) return 0;
587 m = alloca(sizeof(ir_entity *) * get_union_n_members(typ1));
588 memset(m, 0, sizeof(ir_entity *) * get_union_n_members(typ1));
589 /* First sort the members of lt */
590 for (i = 0; i < get_union_n_members(typ1); i++) {
591 ir_entity *e1 = get_union_member(typ1, i);
592 for (j = 0; j < get_union_n_members(typ2); j++) {
593 ir_entity *e2 = get_union_member(typ2, j);
594 if (get_entity_name(e1) == get_entity_name(e2))
598 for (i = 0; i < get_union_n_members(typ1); i++) {
599 if (!m[i] || /* Found no counterpart */
600 !equal_entity(get_union_member(typ1, i), m[i]))
605 if (get_array_n_dimensions(typ1) != get_array_n_dimensions(typ2))
607 if (!equal_type(get_array_element_type(typ1), get_array_element_type(typ2)))
609 for(i = 0; i < get_array_n_dimensions(typ1); i++) {
610 if (get_array_lower_bound(typ1, i) != get_array_lower_bound(typ2, i) ||
611 get_array_upper_bound(typ1, i) != get_array_upper_bound(typ2, i))
613 if (get_array_order(typ1, i) != get_array_order(typ2, i))
614 assert(0 && "type compare with different dimension orders not implemented");
617 case tpo_enumeration: {
618 assert(0 && "enumerations not implemented");
621 if (get_pointer_points_to_type(typ1) != get_pointer_points_to_type(typ2))
624 case tpo_primitive: {
631 /* Checks whether two types are structural comparable. */
632 int smaller_type (ir_type *st, ir_type *lt) {
636 if (st == lt) return 1;
638 if (get_type_tpop_code(st) != get_type_tpop_code(lt))
641 switch(get_type_tpop_code(st)) {
643 return is_SubClass_of(st, lt);
646 if (get_struct_n_members(st) != get_struct_n_members(lt)) return 0;
647 m = alloca(sizeof(ir_entity *) * get_struct_n_members(st));
648 memset(m, 0, sizeof(ir_entity *) * get_struct_n_members(st));
649 /* First sort the members of lt */
650 for (i = 0; i < get_struct_n_members(st); i++) {
651 ir_entity *se = get_struct_member(st, i);
652 for (j = 0; j < get_struct_n_members(lt); j++) {
653 ir_entity *le = get_struct_member(lt, j);
654 if (get_entity_name(le) == get_entity_name(se))
658 for (i = 0; i < get_struct_n_members(st); i++) {
659 if (!m[i] || /* Found no counterpart */
660 !smaller_type(get_entity_type(get_struct_member(st, i)),
661 get_entity_type(m[i])))
666 int n_param1, n_param2;
668 /** FIXME: is this still 1? */
669 if (get_method_variadicity(st) != get_method_variadicity(lt)) return 0;
670 if (get_method_n_ress(st) != get_method_n_ress(lt)) return 0;
671 if (get_method_calling_convention(st) !=
672 get_method_calling_convention(lt)) return 0;
674 if (get_method_variadicity(st) == variadicity_non_variadic) {
675 n_param1 = get_method_n_params(st);
676 n_param2 = get_method_n_params(lt);
679 n_param1 = get_method_first_variadic_param_index(st);
680 n_param2 = get_method_first_variadic_param_index(lt);
683 if (n_param1 != n_param2) return 0;
685 for (i = 0; i < get_method_n_params(st); i++) {
686 if (!smaller_type(get_method_param_type(st, i), get_method_param_type(lt, i)))
689 for (i = 0; i < get_method_n_ress(st); i++) {
690 if (!smaller_type(get_method_res_type(st, i), get_method_res_type(lt, i)))
695 if (get_union_n_members(st) != get_union_n_members(lt)) return 0;
696 m = alloca(sizeof(ir_entity *) * get_union_n_members(st));
697 memset(m, 0, sizeof(ir_entity *) * get_union_n_members(st));
698 /* First sort the members of lt */
699 for (i = 0; i < get_union_n_members(st); i++) {
700 ir_entity *se = get_union_member(st, i);
701 for (j = 0; j < get_union_n_members(lt); j++) {
702 ir_entity *le = get_union_member(lt, j);
703 if (get_entity_name(le) == get_entity_name(se))
707 for (i = 0; i < get_union_n_members(st); i++) {
708 if (!m[i] || /* Found no counterpart */
709 !smaller_type(get_entity_type(get_union_member(st, i)),
710 get_entity_type(m[i])))
715 ir_type *set, *let; /* small/large elt. ir_type */
716 if (get_array_n_dimensions(st) != get_array_n_dimensions(lt))
718 set = get_array_element_type(st);
719 let = get_array_element_type(lt);
721 /* If the element types are different, set must be convertible
722 to let, and they must have the same size so that address
723 computations work out. To have a size the layout must
725 if ((get_type_state(set) != layout_fixed) ||
726 (get_type_state(let) != layout_fixed))
728 if (!smaller_type(set, let) ||
729 get_type_size_bits(set) != get_type_size_bits(let))
732 for(i = 0; i < get_array_n_dimensions(st); i++) {
733 if (get_array_lower_bound(lt, i))
734 if(get_array_lower_bound(st, i) != get_array_lower_bound(lt, i))
736 if (get_array_upper_bound(lt, i))
737 if(get_array_upper_bound(st, i) != get_array_upper_bound(lt, i))
741 case tpo_enumeration: {
742 assert(0 && "enumerations not implemented");
745 if (!smaller_type(get_pointer_points_to_type(st),
746 get_pointer_points_to_type(lt)))
749 case tpo_primitive: {
750 if (!smaller_mode(get_type_mode(st), get_type_mode(lt)))
758 /*-----------------------------------------------------------------*/
760 /*-----------------------------------------------------------------*/
762 /* create a new class ir_type */
763 ir_type *new_d_type_class (ident *name, dbg_info *db) {
766 res = new_type(type_class, NULL, name, db);
768 res->attr.ca.members = NEW_ARR_F (ir_entity *, 0);
769 res->attr.ca.subtypes = NEW_ARR_F (ir_type *, 0);
770 res->attr.ca.supertypes = NEW_ARR_F (ir_type *, 0);
771 res->attr.ca.peculiarity = peculiarity_existent;
772 res->attr.ca.type_info = NULL;
773 res->attr.ca.vtable_size = 0;
774 res->attr.ca.clss_flags = cf_none;
775 res->attr.ca.dfn = 0;
780 ir_type *new_type_class (ident *name) {
781 return new_d_type_class (name, NULL);
784 /* free all entities of a class */
785 void free_class_entities(ir_type *clss) {
787 assert(clss && (clss->type_op == type_class));
788 for (i = get_class_n_members(clss) - 1; i >= 0; --i)
789 free_entity(get_class_member(clss, i));
790 /* do NOT free the type info here. It belongs to another class */
793 void free_class_attrs(ir_type *clss) {
794 assert(clss && (clss->type_op == type_class));
795 DEL_ARR_F(clss->attr.ca.members);
796 DEL_ARR_F(clss->attr.ca.subtypes);
797 DEL_ARR_F(clss->attr.ca.supertypes);
800 /* manipulate private fields of class type */
801 void add_class_member (ir_type *clss, ir_entity *member) {
802 assert(clss && (clss->type_op == type_class));
803 assert(clss != get_entity_type(member) && "recursive type");
804 ARR_APP1 (ir_entity *, clss->attr.ca.members, member);
807 int (get_class_n_members) (const ir_type *clss) {
808 return _get_class_n_members(clss);
811 int get_class_member_index(const ir_type *clss, ir_entity *mem) {
813 assert(clss && (clss->type_op == type_class));
814 for (i = 0, n = get_class_n_members(clss); i < n; ++i)
815 if (get_class_member(clss, i) == mem)
820 ir_entity *(get_class_member) (const ir_type *clss, int pos) {
821 return _get_class_member(clss, pos);
824 ir_entity *get_class_member_by_name(ir_type *clss, ident *name) {
826 assert(clss && (clss->type_op == type_class));
827 n_mem = get_class_n_members(clss);
828 for (i = 0; i < n_mem; ++i) {
829 ir_entity *mem = get_class_member(clss, i);
830 if (get_entity_ident(mem) == name) return mem;
835 void set_class_member (ir_type *clss, ir_entity *member, int pos) {
836 assert(clss && (clss->type_op == type_class));
837 assert(pos >= 0 && pos < get_class_n_members(clss));
838 clss->attr.ca.members[pos] = member;
840 void set_class_members (ir_type *clss, ir_entity **members, int arity) {
842 assert(clss && (clss->type_op == type_class));
843 DEL_ARR_F(clss->attr.ca.members);
844 clss->attr.ca.members = NEW_ARR_F (ir_entity *, 0);
845 for (i = 0; i < arity; i++) {
846 set_entity_owner(members[i], clss);
847 ARR_APP1 (ir_entity *, clss->attr.ca.members, members[i]);
850 void remove_class_member(ir_type *clss, ir_entity *member) {
852 assert(clss && (clss->type_op == type_class));
853 for (i = 0; i < (ARR_LEN (clss->attr.ca.members)); i++) {
854 if (clss->attr.ca.members[i] == member) {
855 for (; i < (ARR_LEN (clss->attr.ca.members)) - 1; i++)
856 clss->attr.ca.members[i] = clss->attr.ca.members[i + 1];
857 ARR_SETLEN(ir_entity*, clss->attr.ca.members, ARR_LEN(clss->attr.ca.members) - 1);
863 void add_class_subtype (ir_type *clss, ir_type *subtype) {
865 assert(clss && (clss->type_op == type_class));
866 ARR_APP1 (ir_type *, clss->attr.ca.subtypes, subtype);
867 for (i = 0; i < get_class_n_supertypes(subtype); i++)
868 if (get_class_supertype(subtype, i) == clss)
869 /* Class already registered */
871 ARR_APP1 (ir_type *, subtype->attr.ca.supertypes, clss);
873 int get_class_n_subtypes (const ir_type *clss) {
874 assert(clss && (clss->type_op == type_class));
875 return (ARR_LEN (clss->attr.ca.subtypes));
877 ir_type *get_class_subtype (ir_type *clss, int pos) {
878 assert(clss && (clss->type_op == type_class));
879 assert(pos >= 0 && pos < get_class_n_subtypes(clss));
880 return clss->attr.ca.subtypes[pos] = skip_tid(clss->attr.ca.subtypes[pos]);
882 int get_class_subtype_index(ir_type *clss, const ir_type *subclass) {
883 int i, n_subtypes = get_class_n_subtypes(clss);
884 assert(is_Class_type(subclass));
885 for (i = 0; i < n_subtypes; ++i) {
886 if (get_class_subtype(clss, i) == subclass) return i;
890 void set_class_subtype (ir_type *clss, ir_type *subtype, int pos) {
891 assert(clss && (clss->type_op == type_class));
892 assert(pos >= 0 && pos < get_class_n_subtypes(clss));
893 clss->attr.ca.subtypes[pos] = subtype;
895 void remove_class_subtype(ir_type *clss, ir_type *subtype) {
897 assert(clss && (clss->type_op == type_class));
898 for (i = 0; i < (ARR_LEN (clss->attr.ca.subtypes)); i++)
899 if (clss->attr.ca.subtypes[i] == subtype) {
900 for (; i < (ARR_LEN (clss->attr.ca.subtypes))-1; i++)
901 clss->attr.ca.subtypes[i] = clss->attr.ca.subtypes[i+1];
902 ARR_SETLEN(ir_entity*, clss->attr.ca.subtypes, ARR_LEN(clss->attr.ca.subtypes) - 1);
907 void add_class_supertype (ir_type *clss, ir_type *supertype) {
909 assert(clss && (clss->type_op == type_class));
910 assert(supertype && (supertype -> type_op == type_class));
911 ARR_APP1 (ir_type *, clss->attr.ca.supertypes, supertype);
912 for (i = get_class_n_subtypes(supertype) - 1; i >= 0; --i)
913 if (get_class_subtype(supertype, i) == clss)
914 /* Class already registered */
916 ARR_APP1 (ir_type *, supertype->attr.ca.subtypes, clss);
918 int get_class_n_supertypes (const ir_type *clss) {
919 assert(clss && (clss->type_op == type_class));
920 return (ARR_LEN (clss->attr.ca.supertypes));
922 int get_class_supertype_index(ir_type *clss, ir_type *super_clss) {
923 int i, n_supertypes = get_class_n_supertypes(clss);
924 assert(super_clss && (super_clss->type_op == type_class));
925 for (i = 0; i < n_supertypes; i++)
926 if (get_class_supertype(clss, i) == super_clss)
930 ir_type *get_class_supertype (ir_type *clss, int pos) {
931 assert(clss && (clss->type_op == type_class));
932 assert(pos >= 0 && pos < get_class_n_supertypes(clss));
933 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;
940 void remove_class_supertype(ir_type *clss, ir_type *supertype) {
942 assert(clss && (clss->type_op == type_class));
943 for (i = 0; i < (ARR_LEN (clss->attr.ca.supertypes)); i++)
944 if (clss->attr.ca.supertypes[i] == supertype) {
945 for(; i < (ARR_LEN (clss->attr.ca.supertypes))-1; i++)
946 clss->attr.ca.supertypes[i] = clss->attr.ca.supertypes[i+1];
947 ARR_SETLEN(ir_entity*, clss->attr.ca.supertypes, ARR_LEN(clss->attr.ca.supertypes) - 1);
951 ir_entity *get_class_type_info(const ir_type *clss) {
952 return clss->attr.ca.type_info;
954 void set_class_type_info(ir_type *clss, ir_entity *ent) {
955 clss->attr.ca.type_info = ent;
957 ent->repr_class = clss;
960 const char *get_peculiarity_name(ir_peculiarity p) {
961 #define X(a) case a: return #a
963 X(peculiarity_description);
964 X(peculiarity_inherited);
965 X(peculiarity_existent);
968 return "invalid peculiarity";
971 ir_peculiarity get_class_peculiarity (const ir_type *clss) {
972 assert(clss && (clss->type_op == type_class));
973 return clss->attr.ca.peculiarity;
976 void set_class_peculiarity (ir_type *clss, ir_peculiarity pec) {
977 assert(clss && (clss->type_op == type_class));
978 assert(pec != peculiarity_inherited); /* There is no inheritance of types in libFirm. */
979 clss->attr.ca.peculiarity = pec;
982 /* Returns the size of the virtual function table. */
983 unsigned (get_class_vtable_size)(const ir_type *clss) {
984 return _get_class_vtable_size(clss);
987 /* Sets a new size of the virtual function table. */
988 void (set_class_vtable_size)(ir_type *clss, unsigned size) {
989 _set_class_vtable_size(clss, size);
992 /* Returns non-zero if a class is final. */
993 int (is_class_final)(const ir_type *clss) {
994 return _is_class_final(clss);
997 /* Sets if a class is final. */
998 void (set_class_final)(ir_type *clss, int flag) {
999 _set_class_final(clss, flag);
1002 /* Returns non-zero if a class is an interface. */
1003 int (is_class_interface)(const ir_type *clss) {
1004 return _is_class_interface(clss);
1007 /* Sets the class interface flag. */
1008 void (set_class_interface)(ir_type *clss, int flag) {
1009 _set_class_interface(clss, flag);
1012 /* Returns non-zero if a class is abstract. */
1013 int (is_class_abstract)(const ir_type *clss) {
1014 return _is_class_abstract(clss);
1017 /* Sets the class abstract flag. */
1018 void (set_class_abstract)(ir_type *clss, int final) {
1019 _set_class_abstract(clss, final);
1022 void set_class_dfn (ir_type *clss, int dfn) {
1023 clss->attr.ca.dfn = dfn;
1026 int get_class_dfn (const ir_type *clss) {
1027 return (clss->attr.ca.dfn);
1031 int (is_Class_type)(const ir_type *clss) {
1032 return _is_class_type(clss);
1035 void set_class_mode(ir_type *tp, ir_mode *mode) {
1036 /* for classes and structs we allow to set a mode if the layout is fixed AND the size matches */
1037 assert(get_type_state(tp) == layout_fixed &&
1038 tp->size == get_mode_size_bits(mode) && "mode don't match class layout");
1042 void set_class_size_bits(ir_type *tp, int size) {
1043 /* argh: we must allow to set negative values as "invalid size" */
1044 tp->size = (size >= 0) ? (size + 7) & ~7 : size;
1045 assert(tp->size == size && "setting a bit size is NOT allowed for this type");
1048 /*----------------------------------------------------------------**/
1050 /*----------------------------------------------------------------**/
1052 /* create a new type struct */
1053 ir_type *new_d_type_struct(ident *name, dbg_info *db) {
1054 ir_type *res = new_type(type_struct, NULL, name, db);
1056 res->attr.sa.members = NEW_ARR_F(ir_entity *, 0);
1061 ir_type *new_type_struct (ident *name) {
1062 return new_d_type_struct (name, NULL);
1065 void free_struct_entities (ir_type *strct) {
1067 assert(strct && (strct->type_op == type_struct));
1068 for (i = get_struct_n_members(strct)-1; i >= 0; --i)
1069 free_entity(get_struct_member(strct, i));
1071 void free_struct_attrs (ir_type *strct) {
1072 assert(strct && (strct->type_op == type_struct));
1073 DEL_ARR_F(strct->attr.sa.members);
1076 /* manipulate private fields of struct */
1077 int get_struct_n_members (const ir_type *strct) {
1078 assert(strct && (strct->type_op == type_struct));
1079 return (ARR_LEN (strct->attr.sa.members));
1082 void add_struct_member (ir_type *strct, ir_entity *member) {
1083 assert(strct && (strct->type_op == type_struct));
1084 assert(get_type_tpop(get_entity_type(member)) != type_method);
1085 /* @@@ lowerfirm geht nicht durch */
1086 assert(strct != get_entity_type(member) && "recursive type");
1087 ARR_APP1 (ir_entity *, strct->attr.sa.members, member);
1090 ir_entity *get_struct_member (const ir_type *strct, int pos) {
1091 assert(strct && (strct->type_op == type_struct));
1092 assert(pos >= 0 && pos < get_struct_n_members(strct));
1093 return strct->attr.sa.members[pos];
1096 int get_struct_member_index(const ir_type *strct, ir_entity *mem) {
1098 assert(strct && (strct->type_op == type_struct));
1099 for (i = 0, n = get_struct_n_members(strct); i < n; ++i)
1100 if (get_struct_member(strct, i) == mem)
1105 void set_struct_member (ir_type *strct, int pos, ir_entity *member) {
1106 assert(strct && (strct->type_op == type_struct));
1107 assert(pos >= 0 && pos < get_struct_n_members(strct));
1108 assert(get_entity_type(member)->type_op != type_method);/* @@@ lowerfirm !!*/
1109 strct->attr.sa.members[pos] = member;
1111 void remove_struct_member(ir_type *strct, ir_entity *member) {
1113 assert(strct && (strct->type_op == type_struct));
1114 for (i = 0; i < (ARR_LEN (strct->attr.sa.members)); i++)
1115 if (strct->attr.sa.members[i] == member) {
1116 for(; i < (ARR_LEN (strct->attr.sa.members))-1; i++)
1117 strct->attr.sa.members[i] = strct->attr.sa.members[i+1];
1118 ARR_SETLEN(ir_entity*, strct->attr.sa.members, ARR_LEN(strct->attr.sa.members) - 1);
1124 int (is_Struct_type)(const ir_type *strct) {
1125 return _is_struct_type(strct);
1128 void set_struct_mode(ir_type *tp, ir_mode *mode) {
1129 /* for classes and structs we allow to set a mode if the layout is fixed AND the size matches */
1130 assert(get_type_state(tp) == layout_fixed &&
1131 tp->size == get_mode_size_bits(mode) && "mode don't match struct layout");
1135 void set_struct_size_bits(ir_type *tp, int size) {
1136 /* argh: we must allow to set negative values as "invalid size" */
1137 tp->size = (size >= 0) ? (size + 7) & ~7 : size;
1138 assert(tp->size == size && "setting a bit size is NOT allowed for this type");
1141 /*******************************************************************/
1143 /*******************************************************************/
1146 * Lazy construction of value argument / result representation.
1147 * Constructs a struct type and its member. The types of the members
1148 * are passed in the argument list.
1150 * @param name name of the type constructed
1151 * @param len number of fields
1152 * @param tps array of field types with length len
1154 static INLINE ir_type *
1155 build_value_type(ident *name, int len, tp_ent_pair *tps) {
1157 ir_type *res = new_type_struct(name);
1158 res->flags |= tf_value_param_type;
1159 /* Remove type from type list. Must be treated differently than other types. */
1160 remove_irp_type(res);
1161 for (i = 0; i < len; i++) {
1162 ident *id = tps[i].param_name;
1164 /* use res as default if corresponding type is not yet set. */
1165 ir_type *elt_type = tps[i].tp ? tps[i].tp : res;
1167 /* use the parameter name if specified */
1169 id = mangle_u(name, get_type_ident(elt_type));
1170 tps[i].ent = new_entity(res, id, elt_type);
1171 set_entity_allocation(tps[i].ent, allocation_parameter);
1176 /* Create a new method type.
1177 N_param is the number of parameters, n_res the number of results. */
1178 ir_type *new_d_type_method(ident *name, int n_param, int n_res, dbg_info *db) {
1181 assert((get_mode_size_bytes(mode_P_code) != -1) && "unorthodox modes not implemented");
1182 res = new_type(type_method, mode_P_code, name, db);
1183 res->flags |= tf_layout_fixed;
1184 res->size = get_mode_size_bits(mode_P_code);
1185 res->attr.ma.n_params = n_param;
1186 res->attr.ma.params = xcalloc(n_param, sizeof(res->attr.ma.params[0]));
1187 res->attr.ma.value_params = NULL;
1188 res->attr.ma.n_res = n_res;
1189 res->attr.ma.res_type = xcalloc(n_res, sizeof(res->attr.ma.res_type[0]));
1190 res->attr.ma.value_ress = NULL;
1191 res->attr.ma.variadicity = variadicity_non_variadic;
1192 res->attr.ma.first_variadic_param = -1;
1193 res->attr.ma.additional_properties = mtp_no_property;
1194 res->attr.ma.irg_calling_conv = default_cc_mask;
1199 ir_type *new_type_method(ident *name, int n_param, int n_res) {
1200 return new_d_type_method(name, n_param, n_res, NULL);
1203 void free_method_entities(ir_type *method) {
1204 assert(method && (method->type_op == type_method));
1207 /* Attention: also frees entities in value parameter subtypes! */
1208 void free_method_attrs(ir_type *method) {
1209 assert(method && (method->type_op == type_method));
1210 free(method->attr.ma.params);
1211 free(method->attr.ma.res_type);
1212 if (method->attr.ma.value_params) {
1213 free_type_entities(method->attr.ma.value_params);
1214 free_type(method->attr.ma.value_params);
1216 if (method->attr.ma.value_ress) {
1217 free_type_entities(method->attr.ma.value_ress);
1218 free_type(method->attr.ma.value_ress);
1222 /* manipulate private fields of method. */
1223 int (get_method_n_params)(const ir_type *method) {
1224 return _get_method_n_params(method);
1227 /* Returns the type of the parameter at position pos of a method. */
1228 ir_type *get_method_param_type(ir_type *method, int pos) {
1230 assert(method && (method->type_op == type_method));
1231 assert(pos >= 0 && pos < get_method_n_params(method));
1232 res = method->attr.ma.params[pos].tp;
1233 assert(res != NULL && "empty method param type");
1234 return method->attr.ma.params[pos].tp = skip_tid(res);
1237 void set_method_param_type(ir_type *method, int pos, ir_type *tp) {
1238 assert(method && (method->type_op == type_method));
1239 assert(pos >= 0 && pos < get_method_n_params(method));
1240 method->attr.ma.params[pos].tp = tp;
1241 /* If information constructed set pass-by-value representation. */
1242 if (method->attr.ma.value_params) {
1243 assert(get_method_n_params(method) == get_struct_n_members(method->attr.ma.value_params));
1244 set_entity_type(get_struct_member(method->attr.ma.value_params, pos), tp);
1248 /* Returns an ident representing the parameters name. Returns NULL if not set.
1249 For debug support only. */
1250 ident *get_method_param_ident(ir_type *method, int pos) {
1251 assert(method && (method->type_op == type_method));
1252 assert(pos >= 0 && pos < get_method_n_params(method));
1253 return method->attr.ma.params[pos].param_name;
1256 /* Returns a string representing the parameters name. Returns NULL if not set.
1257 For debug support only. */
1258 const char *get_method_param_name(ir_type *method, int pos) {
1259 ident *id = get_method_param_ident(method, pos);
1260 return id ? get_id_str(id) : NULL;
1263 /* Sets an ident representing the parameters name. For debug support only. */
1264 void set_method_param_ident(ir_type *method, int pos, ident *id) {
1265 assert(method && (method->type_op == type_method));
1266 assert(pos >= 0 && pos < get_method_n_params(method));
1267 method->attr.ma.params[pos].param_name = id;
1270 /* Returns an entity that represents the copied value argument. Only necessary
1271 for compounds passed by value. */
1272 ir_entity *get_method_value_param_ent(ir_type *method, int pos) {
1273 assert(method && (method->type_op == type_method));
1274 assert(pos >= 0 && pos < get_method_n_params(method));
1276 if (!method->attr.ma.value_params) {
1277 /* parameter value type not created yet, build */
1278 method->attr.ma.value_params
1279 = build_value_type(mangle_u(get_type_ident(method), value_params_suffix),
1280 get_method_n_params(method), method->attr.ma.params);
1283 * build_value_type() sets the method->attr.ma.value_params type as default if
1286 assert((get_entity_type(method->attr.ma.params[pos].ent) != method->attr.ma.value_params)
1287 && "param type not yet set");
1288 return method->attr.ma.params[pos].ent;
1292 * Returns a type that represents the copied value arguments.
1294 ir_type *get_method_value_param_type(const ir_type *method)
1296 assert(method && (method->type_op == type_method));
1297 return method->attr.ma.value_params;
1300 int (get_method_n_ress)(const ir_type *method) {
1301 return _get_method_n_ress(method);
1304 ir_type *get_method_res_type(ir_type *method, int pos) {
1306 assert(method && (method->type_op == type_method));
1307 assert(pos >= 0 && pos < get_method_n_ress(method));
1308 res = method->attr.ma.res_type[pos].tp;
1309 assert(res != NULL && "empty method return type");
1310 return method->attr.ma.res_type[pos].tp = skip_tid(res);
1313 void set_method_res_type(ir_type *method, int pos, ir_type *tp) {
1314 assert(method && (method->type_op == type_method));
1315 assert(pos >= 0 && pos < get_method_n_ress(method));
1316 /* set the result ir_type */
1317 method->attr.ma.res_type[pos].tp = tp;
1318 /* If information constructed set pass-by-value representation. */
1319 if (method->attr.ma.value_ress) {
1320 assert(get_method_n_ress(method) == get_struct_n_members(method->attr.ma.value_ress));
1321 set_entity_type(get_struct_member(method->attr.ma.value_ress, pos), tp);
1325 /* Returns an entity that represents the copied value result. Only necessary
1326 for compounds passed by value. */
1327 ir_entity *get_method_value_res_ent(ir_type *method, int pos) {
1328 assert(method && (method->type_op == type_method));
1329 assert(pos >= 0 && pos < get_method_n_ress(method));
1331 if (!method->attr.ma.value_ress) {
1332 /* result value type not created yet, build */
1333 method->attr.ma.value_ress
1334 = build_value_type(mangle_u(get_type_ident(method), value_ress_suffix),
1335 get_method_n_ress(method), method->attr.ma.res_type);
1338 * build_value_type() sets the method->attr.ma.value_ress type as default if
1341 assert((get_entity_type(method->attr.ma.res_type[pos].ent) != method->attr.ma.value_ress)
1342 && "result type not yet set");
1344 return method->attr.ma.res_type[pos].ent;
1348 * Returns a type that represents the copied value results.
1350 ir_type *get_method_value_res_type(const ir_type *method) {
1351 assert(method && (method->type_op == type_method));
1352 return method->attr.ma.value_ress;
1355 /* Returns the null-terminated name of this variadicity. */
1356 const char *get_variadicity_name(variadicity vari)
1358 #define X(a) case a: return #a
1360 X(variadicity_non_variadic);
1361 X(variadicity_variadic);
1368 variadicity get_method_variadicity(const ir_type *method)
1370 assert(method && (method->type_op == type_method));
1371 return method->attr.ma.variadicity;
1374 void set_method_variadicity(ir_type *method, variadicity vari)
1376 assert(method && (method->type_op == type_method));
1377 method->attr.ma.variadicity = vari;
1381 * Returns the first variadic parameter index of a type.
1382 * If this index was NOT set, the index of the last parameter
1383 * of the method type plus one is returned for variadic functions.
1384 * Non-variadic function types always return -1 here.
1386 int get_method_first_variadic_param_index(const ir_type *method)
1388 assert(method && (method->type_op == type_method));
1390 if (method->attr.ma.variadicity == variadicity_non_variadic)
1393 if (method->attr.ma.first_variadic_param == -1)
1394 return get_method_n_params(method);
1395 return method->attr.ma.first_variadic_param;
1399 * Sets the first variadic parameter index. This allows to specify
1400 * a complete call type (containing the type of all parameters)
1401 * but still have the knowledge, which parameter must be passed as
1404 void set_method_first_variadic_param_index(ir_type *method, int index)
1406 assert(method && (method->type_op == type_method));
1407 assert(index >= 0 && index <= get_method_n_params(method));
1409 method->attr.ma.first_variadic_param = index;
1412 unsigned (get_method_additional_properties)(const ir_type *method) {
1413 return _get_method_additional_properties(method);
1416 void (set_method_additional_properties)(ir_type *method, unsigned mask) {
1417 _set_method_additional_properties(method, mask);
1420 void (set_method_additional_property)(ir_type *method, mtp_additional_property flag) {
1421 _set_method_additional_property(method, flag);
1424 /* Returns the calling convention of an entities graph. */
1425 unsigned (get_method_calling_convention)(const ir_type *method) {
1426 return _get_method_calling_convention(method);
1429 /* Sets the calling convention of an entities graph. */
1430 void (set_method_calling_convention)(ir_type *method, unsigned cc_mask) {
1431 _set_method_calling_convention(method, cc_mask);
1434 /* Returns the number of registers parameters, 0 means default. */
1435 unsigned get_method_n_regparams(ir_type *method) {
1436 unsigned cc = get_method_calling_convention(method);
1437 assert(IS_FASTCALL(cc));
1439 return cc & ~cc_bits;
1442 /* Sets the number of registers parameters, 0 means default. */
1443 void set_method_n_regparams(ir_type *method, unsigned n_regs) {
1444 unsigned cc = get_method_calling_convention(method);
1445 assert(IS_FASTCALL(cc));
1447 set_method_calling_convention(method, (cc & cc_bits) | (n_regs & ~cc_bits));
1451 int (is_Method_type)(const ir_type *method) {
1452 return _is_method_type(method);
1455 /*-----------------------------------------------------------------*/
1457 /*-----------------------------------------------------------------*/
1459 /* create a new type uni */
1460 ir_type *new_d_type_union(ident *name, dbg_info *db) {
1461 ir_type *res = new_type(type_union, NULL, name, db);
1463 res->attr.ua.members = NEW_ARR_F(ir_entity *, 0);
1468 ir_type *new_type_union(ident *name) {
1469 return new_d_type_union(name, NULL);
1472 void free_union_entities(ir_type *uni) {
1474 assert(uni && (uni->type_op == type_union));
1475 for (i = get_union_n_members(uni) - 1; i >= 0; --i)
1476 free_entity(get_union_member(uni, i));
1479 void free_union_attrs (ir_type *uni) {
1480 assert(uni && (uni->type_op == type_union));
1481 DEL_ARR_F(uni->attr.ua.members);
1484 /* manipulate private fields of union */
1485 int get_union_n_members (const ir_type *uni) {
1486 assert(uni && (uni->type_op == type_union));
1487 return (ARR_LEN (uni->attr.ua.members));
1489 void add_union_member (ir_type *uni, ir_entity *member) {
1490 assert(uni && (uni->type_op == type_union));
1491 assert(uni != get_entity_type(member) && "recursive type");
1492 ARR_APP1 (ir_entity *, uni->attr.ua.members, member);
1494 ir_entity *get_union_member (const ir_type *uni, int pos) {
1495 assert(uni && (uni->type_op == type_union));
1496 assert(pos >= 0 && pos < get_union_n_members(uni));
1497 return uni->attr.ua.members[pos];
1499 int get_union_member_index(const ir_type *uni, ir_entity *mem) {
1501 assert(uni && (uni->type_op == type_union));
1502 for (i = 0, n = get_union_n_members(uni); i < n; ++i)
1503 if (get_union_member(uni, i) == mem)
1507 void set_union_member (ir_type *uni, int pos, ir_entity *member) {
1508 assert(uni && (uni->type_op == type_union));
1509 assert(pos >= 0 && pos < get_union_n_members(uni));
1510 uni->attr.ua.members[pos] = member;
1512 void remove_union_member(ir_type *uni, ir_entity *member) {
1514 assert(uni && (uni->type_op == type_union));
1515 for (i = 0; i < (ARR_LEN (uni->attr.ua.members)); i++)
1516 if (uni->attr.ua.members[i] == member) {
1517 for(; i < (ARR_LEN (uni->attr.ua.members))-1; i++)
1518 uni->attr.ua.members[i] = uni->attr.ua.members[i+1];
1519 ARR_SETLEN(ir_entity*, uni->attr.ua.members, ARR_LEN(uni->attr.ua.members) - 1);
1525 int (is_Union_type)(const ir_type *uni) {
1526 return _is_union_type(uni);
1529 void set_union_size_bits(ir_type *tp, int size) {
1530 /* argh: we must allow to set negative values as "invalid size" */
1531 tp->size = (size >= 0) ? (size + 7) & ~7 : size;
1532 assert(tp->size == size && "setting a bit size is NOT allowed for this type");
1535 /*-----------------------------------------------------------------*/
1537 /*-----------------------------------------------------------------*/
1540 /* create a new type array -- set dimension sizes independently */
1541 ir_type *new_d_type_array(ident *name, int n_dimensions, ir_type *element_type, dbg_info *db) {
1545 ir_graph *rem = current_ir_graph;
1547 assert(!is_Method_type(element_type));
1549 res = new_type(type_array, NULL, name, db);
1550 res->attr.aa.n_dimensions = n_dimensions;
1551 res->attr.aa.lower_bound = xcalloc(n_dimensions, sizeof(*res->attr.aa.lower_bound));
1552 res->attr.aa.upper_bound = xcalloc(n_dimensions, sizeof(*res->attr.aa.upper_bound));
1553 res->attr.aa.order = xcalloc(n_dimensions, sizeof(*res->attr.aa.order));
1555 current_ir_graph = get_const_code_irg();
1556 unk = new_Unknown( mode_Iu);
1557 for (i = 0; i < n_dimensions; i++) {
1558 res->attr.aa.lower_bound[i] =
1559 res->attr.aa.upper_bound[i] = unk;
1560 res->attr.aa.order[i] = i;
1562 current_ir_graph = rem;
1564 res->attr.aa.element_type = element_type;
1565 new_entity(res, mangle_u(name, new_id_from_chars("elem_ent", 8)), element_type);
1570 ir_type *new_type_array(ident *name, int n_dimensions, ir_type *element_type) {
1571 return new_d_type_array(name, n_dimensions, element_type, NULL);
1574 void free_array_automatic_entities(ir_type *array) {
1575 assert(array && (array->type_op == type_array));
1576 free_entity(get_array_element_entity(array));
1579 void free_array_entities (ir_type *array) {
1580 assert(array && (array->type_op == type_array));
1583 void free_array_attrs (ir_type *array) {
1584 assert(array && (array->type_op == type_array));
1585 free(array->attr.aa.lower_bound);
1586 free(array->attr.aa.upper_bound);
1587 free(array->attr.aa.order);
1590 /* manipulate private fields of array ir_type */
1591 int get_array_n_dimensions (const ir_type *array) {
1592 assert(array && (array->type_op == type_array));
1593 return array->attr.aa.n_dimensions;
1597 set_array_bounds (ir_type *array, int dimension, ir_node * lower_bound,
1598 ir_node * upper_bound) {
1599 assert(array && (array->type_op == type_array));
1600 assert(lower_bound && "lower_bound node may not be NULL.");
1601 assert(upper_bound && "upper_bound node may not be NULL.");
1602 assert(dimension < array->attr.aa.n_dimensions && dimension >= 0);
1603 array->attr.aa.lower_bound[dimension] = lower_bound;
1604 array->attr.aa.upper_bound[dimension] = upper_bound;
1607 set_array_bounds_int (ir_type *array, int dimension, int lower_bound,
1609 ir_graph *rem = current_ir_graph;
1610 current_ir_graph = get_const_code_irg();
1611 set_array_bounds (array, dimension,
1612 new_Const(mode_Iu, new_tarval_from_long (lower_bound, mode_Iu)),
1613 new_Const(mode_Iu, new_tarval_from_long (upper_bound, mode_Iu )));
1614 current_ir_graph = rem;
1617 set_array_lower_bound (ir_type *array, int dimension, ir_node * lower_bound) {
1618 assert(array && (array->type_op == type_array));
1619 assert(lower_bound && "lower_bound node may not be NULL.");
1620 array->attr.aa.lower_bound[dimension] = lower_bound;
1622 void set_array_lower_bound_int (ir_type *array, int dimension, int lower_bound) {
1623 ir_graph *rem = current_ir_graph;
1624 current_ir_graph = get_const_code_irg();
1625 set_array_lower_bound (array, dimension,
1626 new_Const(mode_Iu, new_tarval_from_long (lower_bound, mode_Iu)));
1627 current_ir_graph = rem;
1630 set_array_upper_bound (ir_type *array, int dimension, ir_node * upper_bound) {
1631 assert(array && (array->type_op == type_array));
1632 assert(upper_bound && "upper_bound node may not be NULL.");
1633 array->attr.aa.upper_bound[dimension] = upper_bound;
1635 void set_array_upper_bound_int (ir_type *array, int dimension, int upper_bound) {
1636 ir_graph *rem = current_ir_graph;
1637 current_ir_graph = get_const_code_irg();
1638 set_array_upper_bound (array, dimension,
1639 new_Const(mode_Iu, new_tarval_from_long (upper_bound, mode_Iu)));
1640 current_ir_graph = rem;
1642 int has_array_lower_bound (const ir_type *array, int dimension) {
1643 assert(array && (array->type_op == type_array));
1644 return (get_irn_op(array->attr.aa.lower_bound[dimension]) != op_Unknown);
1646 ir_node *get_array_lower_bound (const ir_type *array, int dimension) {
1647 assert(array && (array->type_op == type_array));
1648 return array->attr.aa.lower_bound[dimension];
1650 long get_array_lower_bound_int (const ir_type *array, int dimension) {
1652 assert(array && (array->type_op == type_array));
1653 node = array->attr.aa.lower_bound[dimension];
1654 assert(get_irn_op(node) == op_Const);
1655 return get_tarval_long(get_Const_tarval(node));
1657 int has_array_upper_bound (const ir_type *array, int dimension) {
1658 assert(array && (array->type_op == type_array));
1659 return (get_irn_op(array->attr.aa.upper_bound[dimension]) != op_Unknown);
1661 ir_node * get_array_upper_bound (const ir_type *array, int dimension) {
1662 assert(array && (array->type_op == type_array));
1663 return array->attr.aa.upper_bound[dimension];
1665 long get_array_upper_bound_int (const ir_type *array, int dimension) {
1667 assert(array && (array->type_op == type_array));
1668 node = array->attr.aa.upper_bound[dimension];
1669 assert(get_irn_op(node) == op_Const);
1670 return get_tarval_long(get_Const_tarval(node));
1673 void set_array_order (ir_type *array, int dimension, int order) {
1674 assert(array && (array->type_op == type_array));
1675 array->attr.aa.order[dimension] = order;
1678 int get_array_order (const ir_type *array, int dimension) {
1679 assert(array && (array->type_op == type_array));
1680 return array->attr.aa.order[dimension];
1683 int find_array_dimension(const ir_type *array, int order) {
1686 assert(array && (array->type_op == type_array));
1688 for (dim = 0; dim < array->attr.aa.n_dimensions; ++dim) {
1689 if (array->attr.aa.order[dim] == order)
1695 void set_array_element_type (ir_type *array, ir_type *tp) {
1696 assert(array && (array->type_op == type_array));
1697 assert(!is_Method_type(tp));
1698 array->attr.aa.element_type = tp;
1700 ir_type *get_array_element_type (ir_type *array) {
1701 assert(array && (array->type_op == type_array));
1702 return array->attr.aa.element_type = skip_tid(array->attr.aa.element_type);
1705 void set_array_element_entity (ir_type *array, ir_entity *ent) {
1706 assert(array && (array->type_op == type_array));
1707 assert((get_entity_type(ent)->type_op != type_method));
1708 array->attr.aa.element_ent = ent;
1709 array->attr.aa.element_type = get_entity_type(ent);
1711 ir_entity *get_array_element_entity (const ir_type *array) {
1712 assert(array && (array->type_op == type_array));
1713 return array->attr.aa.element_ent;
1717 int (is_Array_type)(const ir_type *array) {
1718 return _is_array_type(array);
1721 void set_array_size_bits(ir_type *tp, int size) {
1722 /* FIXME: Here we should make some checks with the element type size */
1725 /*-----------------------------------------------------------------*/
1726 /* TYPE_ENUMERATION */
1727 /*-----------------------------------------------------------------*/
1729 /* create a new type enumeration -- set the enumerators independently */
1730 ir_type *new_d_type_enumeration(ident *name, int n_enums, dbg_info *db) {
1733 assert(n_enums >= 0);
1734 res = new_type(type_enumeration, NULL, name, db);
1735 res->attr.ea.enumer = NEW_ARR_F(ir_enum_const, n_enums);
1740 ir_type *new_type_enumeration(ident *name, int n_enums) {
1741 return new_d_type_enumeration(name, n_enums, NULL);
1744 void free_enumeration_entities(ir_type *enumeration) {
1745 assert(enumeration && (enumeration->type_op == type_enumeration));
1747 void free_enumeration_attrs(ir_type *enumeration) {
1748 assert(enumeration && (enumeration->type_op == type_enumeration));
1749 DEL_ARR_F(enumeration->attr.ea.enumer);
1752 /* manipulate fields of enumeration type. */
1753 int get_enumeration_n_enums(const ir_type *enumeration) {
1754 assert(enumeration && (enumeration->type_op == type_enumeration));
1755 return ARR_LEN(enumeration->attr.ea.enumer);
1758 /* create a new constant */
1759 void set_enumeration_const(ir_type *enumeration, int pos, ident *nameid, tarval *con) {
1760 assert(0 <= pos && pos < ARR_LEN(enumeration->attr.ea.enumer));
1761 enumeration->attr.ea.enumer[pos].nameid = nameid;
1762 enumeration->attr.ea.enumer[pos].value = con;
1763 enumeration->attr.ea.enumer[pos].owner = enumeration;
1766 ir_enum_const *get_enumeration_const(const ir_type *enumeration, int pos) {
1767 assert(enumeration && (enumeration->type_op == type_enumeration));
1768 assert(pos >= 0 && pos < get_enumeration_n_enums(enumeration));
1769 return &enumeration->attr.ea.enumer[pos];
1772 ir_type *get_enumeration_owner(const ir_enum_const *enum_cnst) {
1773 return enum_cnst->owner;
1775 void set_enumeration_value(ir_enum_const *enum_cnst, tarval *con) {
1776 enum_cnst->value = con;
1778 tarval *get_enumeration_value(const ir_enum_const *enum_cnst) {
1779 return enum_cnst->value;
1781 void set_enumeration_nameid(ir_enum_const *enum_cnst, ident *id) {
1782 enum_cnst->nameid = id;
1784 ident *get_enumeration_nameid(const ir_enum_const *enum_cnst) {
1785 return enum_cnst->nameid;
1787 const char *get_enumeration_name(const ir_enum_const *enum_cnst) {
1788 return get_id_str(enum_cnst->nameid);
1792 int (is_Enumeration_type)(const ir_type *enumeration) {
1793 return _is_enumeration_type(enumeration);
1796 void set_enumeration_mode(ir_type *tp, ir_mode *mode) {
1797 assert(mode_is_int(mode) && "Modes of enumerations must be integers");
1798 /* For pointer and enumeration size depends on the mode, but only byte size allowed. */
1799 assert((get_mode_size_bits(mode) & 7) == 0 && "unorthodox modes not implemented");
1801 tp->size = get_mode_size_bits(mode);
1805 /*-----------------------------------------------------------------*/
1807 /*-----------------------------------------------------------------*/
1809 /* Create a new type pointer */
1810 ir_type *new_d_type_pointer(ident *name, ir_type *points_to, ir_mode *ptr_mode, dbg_info *db) {
1813 assert(mode_is_reference(ptr_mode));
1814 res = new_type(type_pointer, ptr_mode, name, db);
1815 res->attr.pa.points_to = points_to;
1816 assert((get_mode_size_bytes(res->mode) != -1) && "unorthodox modes not implemented");
1817 res->size = get_mode_size_bits(res->mode);
1818 res->flags |= tf_layout_fixed;
1823 ir_type *new_type_pointer(ident *name, ir_type *points_to, ir_mode *ptr_mode) {
1824 return new_d_type_pointer(name, points_to, ptr_mode, NULL);
1827 void free_pointer_entities (ir_type *pointer) {
1828 assert(pointer && (pointer->type_op == type_pointer));
1831 void free_pointer_attrs (ir_type *pointer) {
1832 assert(pointer && (pointer->type_op == type_pointer));
1835 /* manipulate fields of type_pointer */
1836 void set_pointer_points_to_type (ir_type *pointer, ir_type *tp) {
1837 assert(pointer && (pointer->type_op == type_pointer));
1838 pointer->attr.pa.points_to = tp;
1841 ir_type *get_pointer_points_to_type (ir_type *pointer) {
1842 assert(pointer && (pointer->type_op == type_pointer));
1843 return pointer->attr.pa.points_to = skip_tid(pointer->attr.pa.points_to);
1847 int (is_Pointer_type)(const ir_type *pointer) {
1848 return _is_pointer_type(pointer);
1851 void set_pointer_mode(ir_type *tp, ir_mode *mode) {
1852 assert(mode_is_reference(mode) && "Modes of pointers must be references");
1853 /* For pointer and enumeration size depends on the mode, but only byte size allowed. */
1854 assert((get_mode_size_bits(mode) & 7) == 0 && "unorthodox modes not implemented");
1856 tp->size = get_mode_size_bits(mode);
1860 /* Returns the first pointer type that has as points_to tp.
1861 * Not efficient: O(#types).
1862 * If not found returns firm_unknown_type. */
1863 ir_type *find_pointer_type_to_type (ir_type *tp) {
1864 int i, n = get_irp_n_types();
1865 for (i = 0; i < n; ++i) {
1866 ir_type *found = get_irp_type(i);
1867 if (is_Pointer_type(found) && get_pointer_points_to_type(found) == tp)
1870 return firm_unknown_type;
1874 /*-----------------------------------------------------------------*/
1875 /* TYPE_PRIMITIVE */
1876 /*-----------------------------------------------------------------*/
1878 /* create a new type primitive */
1879 ir_type *new_d_type_primitive(ident *name, ir_mode *mode, dbg_info *db) {
1881 /* @@@ assert( mode_is_data(mode) && (!mode_is_reference(mode))); */
1882 res = new_type(type_primitive, mode, name, db);
1883 res->size = get_mode_size_bits(mode);
1884 res->flags |= tf_layout_fixed;
1889 ir_type *new_type_primitive(ident *name, ir_mode *mode) {
1890 return new_d_type_primitive(name, mode, NULL);
1894 int (is_Primitive_type)(const ir_type *primitive) {
1895 return _is_primitive_type(primitive);
1898 void set_primitive_mode(ir_type *tp, ir_mode *mode) {
1899 /* Modes of primitives must be data */
1900 assert(mode_is_data(mode));
1902 /* For primitive size depends on the mode. */
1903 tp->size = get_mode_size_bits(mode);
1908 /*-----------------------------------------------------------------*/
1909 /* common functionality */
1910 /*-----------------------------------------------------------------*/
1913 int (is_atomic_type)(const ir_type *tp) {
1914 return _is_atomic_type(tp);
1918 * Gets the number of elements in a firm compound type.
1920 int get_compound_n_members(const ir_type *tp)
1922 const tp_op *op = get_type_tpop(tp);
1925 if (op->ops.get_n_members)
1926 res = op->ops.get_n_members(tp);
1928 assert(0 && "no member count for this type");
1934 * Gets the member of a firm compound type at position pos.
1936 ir_entity *get_compound_member(const ir_type *tp, int pos)
1938 const tp_op *op = get_type_tpop(tp);
1939 ir_entity *res = NULL;
1941 if (op->ops.get_member)
1942 res = op->ops.get_member(tp, pos);
1944 assert(0 && "no members in this type");
1949 /* Returns index of member in tp, -1 if not contained. */
1950 int get_compound_member_index(const ir_type *tp, ir_entity *member)
1952 const tp_op *op = get_type_tpop(tp);
1955 if (op->ops.get_member_index)
1956 index = op->ops.get_member_index(tp, member);
1958 assert(0 && "no members in this type");
1963 int is_compound_type(const ir_type *tp) {
1964 assert(tp && tp->kind == k_type);
1965 return tp->type_op->flags & TP_OP_FLAG_COMPOUND;
1968 /* Checks, whether a type is a frame type */
1969 int is_frame_type(const ir_type *tp) {
1970 return tp->flags & tf_frame_type;
1973 /* Checks, whether a type is a value parameter type */
1974 int is_value_param_type(const ir_type *tp) {
1975 return tp->flags & tf_value_param_type;
1978 /* Checks, whether a type is a lowered type */
1979 int is_lowered_type(const ir_type *tp) {
1980 return tp->flags & tf_lowered_type;
1983 /* Makes a new frame type. */
1984 ir_type *new_type_frame(ident *name)
1986 ir_type *res = new_type_class(name);
1988 res->flags |= tf_frame_type;
1990 /* Remove type from type list. Must be treated differently than other types. */
1991 remove_irp_type(res);
1993 /* It is not possible to derive from the frame type. Set the final flag. */
1994 set_class_final(res, 1);
1999 /* Sets a lowered type for a type. This sets both associations. */
2000 void set_lowered_type(ir_type *tp, ir_type *lowered_type) {
2001 assert(is_type(tp) && is_type(lowered_type));
2002 lowered_type->flags |= tf_lowered_type;
2003 tp->assoc_type = lowered_type;
2004 lowered_type->assoc_type = tp;
2008 * Gets the lowered/unlowered type of a type or NULL if this type
2009 * has no lowered/unlowered one.
2011 ir_type *get_associated_type(const ir_type *tp) {
2012 return tp->assoc_type;
2015 /* set the type size for the unknown and none ir_type */
2016 void set_default_size_bits(ir_type *tp, int size) {
2021 * Allocate an area of size bytes aligned at alignment
2022 * at the start or the end of a frame type.
2023 * The frame type must have already an fixed layout.
2025 ir_entity *frame_alloc_area(ir_type *frame_type, int size, int alignment, int at_start)
2031 int frame_align, i, offset, frame_size;
2032 static unsigned area_cnt = 0;
2033 static ir_type *a_byte = NULL;
2035 assert(is_frame_type(frame_type));
2036 assert(get_type_state(frame_type) == layout_fixed);
2037 assert(get_type_alignment_bytes(frame_type) > 0);
2040 a_byte = new_type_primitive(new_id_from_chars("byte", 4), mode_Bu);
2042 snprintf(buf, sizeof(buf), "area%u", area_cnt++);
2043 name = new_id_from_str(buf);
2045 /* align the size */
2046 frame_align = get_type_alignment_bytes(frame_type);
2047 size = (size + frame_align - 1) & -frame_align;
2049 tp = new_type_array(mangle_u(get_type_ident(frame_type), name), 1, a_byte);
2050 set_array_bounds_int(tp, 0, 0, size);
2051 set_type_alignment_bytes(tp, alignment);
2053 frame_size = get_type_size_bytes(frame_type);
2055 /* fix all offsets so far */
2056 for (i = get_class_n_members(frame_type) - 1; i >= 0; --i) {
2057 ir_entity *ent = get_class_member(frame_type, i);
2059 set_entity_offset(ent, get_entity_offset(ent) + size);
2061 /* calculate offset and new type size */
2066 /* calculate offset and new type size */
2067 offset = (frame_size + alignment - 1) & -alignment;
2068 frame_size = offset + size;
2071 area = new_entity(frame_type, name, tp);
2072 set_entity_offset(area, offset);
2073 set_type_size_bytes(frame_type, frame_size);
2075 /* mark this entity as compiler generated */
2076 set_entity_compiler_generated(area, 1);