2 * Copyright 2010-2011 INRIA Saclay
4 * Use of this software is governed by the GNU LGPLv2.1 license
6 * Written by Sven Verdoolaege, INRIA Saclay - Ile-de-France,
7 * Parc Club Orsay Universite, ZAC des vignes, 4 rue Jacques Monod,
12 #include <isl_map_private.h>
17 #include <isl_space_private.h>
18 #include <isl_union_map_private.h>
19 #include <isl/union_set.h>
21 /* Is this union set a parameter domain?
23 int isl_union_set_is_params(__isl_keep isl_union_set *uset)
30 if (uset->table.n != 1)
33 set = isl_set_from_union_set(isl_union_set_copy(uset));
34 params = isl_set_is_params(set);
39 static __isl_give isl_union_map *isl_union_map_alloc(__isl_take isl_space *dim,
47 umap = isl_calloc_type(dim->ctx, isl_union_map);
53 if (isl_hash_table_init(dim->ctx, &umap->table, size) < 0)
59 isl_union_map_free(umap);
63 __isl_give isl_union_map *isl_union_map_empty(__isl_take isl_space *dim)
65 return isl_union_map_alloc(dim, 16);
68 __isl_give isl_union_set *isl_union_set_empty(__isl_take isl_space *dim)
70 return isl_union_map_empty(dim);
73 isl_ctx *isl_union_map_get_ctx(__isl_keep isl_union_map *umap)
75 return umap ? umap->dim->ctx : NULL;
78 isl_ctx *isl_union_set_get_ctx(__isl_keep isl_union_set *uset)
80 return uset ? uset->dim->ctx : NULL;
83 __isl_give isl_space *isl_union_map_get_space(__isl_keep isl_union_map *umap)
87 return isl_space_copy(umap->dim);
90 __isl_give isl_space *isl_union_set_get_space(__isl_keep isl_union_set *uset)
92 return isl_union_map_get_space(uset);
95 static int free_umap_entry(void **entry, void *user)
97 isl_map *map = *entry;
102 static int add_map(__isl_take isl_map *map, void *user)
104 isl_union_map **umap = (isl_union_map **)user;
106 *umap = isl_union_map_add_map(*umap, map);
111 __isl_give isl_union_map *isl_union_map_dup(__isl_keep isl_union_map *umap)
118 dup = isl_union_map_empty(isl_space_copy(umap->dim));
119 if (isl_union_map_foreach_map(umap, &add_map, &dup) < 0)
123 isl_union_map_free(dup);
127 __isl_give isl_union_map *isl_union_map_cow(__isl_take isl_union_map *umap)
135 return isl_union_map_dup(umap);
138 struct isl_union_align {
143 static int align_entry(void **entry, void *user)
145 isl_map *map = *entry;
147 struct isl_union_align *data = user;
149 exp = isl_reordering_extend_space(isl_reordering_copy(data->exp),
150 isl_map_get_space(map));
152 data->res = isl_union_map_add_map(data->res,
153 isl_map_realign(isl_map_copy(map), exp));
158 /* Align the parameters of umap along those of model.
159 * The result has the parameters of model first, in the same order
160 * as they appear in model, followed by any remaining parameters of
161 * umap that do not appear in model.
163 __isl_give isl_union_map *isl_union_map_align_params(
164 __isl_take isl_union_map *umap, __isl_take isl_space *model)
166 struct isl_union_align data = { NULL, NULL };
171 if (isl_space_match(umap->dim, isl_dim_param, model, isl_dim_param)) {
172 isl_space_free(model);
176 model = isl_space_params(model);
177 data.exp = isl_parameter_alignment_reordering(umap->dim, model);
181 data.res = isl_union_map_alloc(isl_space_copy(data.exp->dim),
183 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
184 &align_entry, &data) < 0)
187 isl_reordering_free(data.exp);
188 isl_union_map_free(umap);
189 isl_space_free(model);
192 isl_reordering_free(data.exp);
193 isl_union_map_free(umap);
194 isl_union_map_free(data.res);
195 isl_space_free(model);
199 __isl_give isl_union_set *isl_union_set_align_params(
200 __isl_take isl_union_set *uset, __isl_take isl_space *model)
202 return isl_union_map_align_params(uset, model);
205 __isl_give isl_union_map *isl_union_map_union(__isl_take isl_union_map *umap1,
206 __isl_take isl_union_map *umap2)
208 umap1 = isl_union_map_align_params(umap1, isl_union_map_get_space(umap2));
209 umap2 = isl_union_map_align_params(umap2, isl_union_map_get_space(umap1));
211 umap1 = isl_union_map_cow(umap1);
213 if (!umap1 || !umap2)
216 if (isl_union_map_foreach_map(umap2, &add_map, &umap1) < 0)
219 isl_union_map_free(umap2);
223 isl_union_map_free(umap1);
224 isl_union_map_free(umap2);
228 __isl_give isl_union_set *isl_union_set_union(__isl_take isl_union_set *uset1,
229 __isl_take isl_union_set *uset2)
231 return isl_union_map_union(uset1, uset2);
234 __isl_give isl_union_map *isl_union_map_copy(__isl_keep isl_union_map *umap)
243 __isl_give isl_union_set *isl_union_set_copy(__isl_keep isl_union_set *uset)
245 return isl_union_map_copy(uset);
248 void *isl_union_map_free(__isl_take isl_union_map *umap)
256 isl_hash_table_foreach(umap->dim->ctx, &umap->table,
257 &free_umap_entry, NULL);
258 isl_hash_table_clear(&umap->table);
259 isl_space_free(umap->dim);
264 void *isl_union_set_free(__isl_take isl_union_set *uset)
266 return isl_union_map_free(uset);
269 static int has_dim(const void *entry, const void *val)
271 isl_map *map = (isl_map *)entry;
272 isl_space *dim = (isl_space *)val;
274 return isl_space_is_equal(map->dim, dim);
277 __isl_give isl_union_map *isl_union_map_add_map(__isl_take isl_union_map *umap,
278 __isl_take isl_map *map)
281 struct isl_hash_table_entry *entry;
286 if (isl_map_plain_is_empty(map)) {
291 if (!isl_space_match(map->dim, isl_dim_param, umap->dim, isl_dim_param)) {
292 umap = isl_union_map_align_params(umap, isl_map_get_space(map));
293 map = isl_map_align_params(map, isl_union_map_get_space(umap));
296 umap = isl_union_map_cow(umap);
301 hash = isl_space_get_hash(map->dim);
302 entry = isl_hash_table_find(umap->dim->ctx, &umap->table, hash,
303 &has_dim, map->dim, 1);
310 entry->data = isl_map_union(entry->data, isl_map_copy(map));
319 isl_union_map_free(umap);
323 __isl_give isl_union_set *isl_union_set_add_set(__isl_take isl_union_set *uset,
324 __isl_take isl_set *set)
326 return isl_union_map_add_map(uset, (isl_map *)set);
329 __isl_give isl_union_map *isl_union_map_from_map(__isl_take isl_map *map)
337 dim = isl_map_get_space(map);
338 dim = isl_space_params(dim);
339 umap = isl_union_map_empty(dim);
340 umap = isl_union_map_add_map(umap, map);
345 __isl_give isl_union_set *isl_union_set_from_set(__isl_take isl_set *set)
347 return isl_union_map_from_map((isl_map *)set);
350 __isl_give isl_union_map *isl_union_map_from_basic_map(
351 __isl_take isl_basic_map *bmap)
353 return isl_union_map_from_map(isl_map_from_basic_map(bmap));
356 __isl_give isl_union_set *isl_union_set_from_basic_set(
357 __isl_take isl_basic_set *bset)
359 return isl_union_map_from_basic_map(bset);
362 struct isl_union_map_foreach_data
364 int (*fn)(__isl_take isl_map *map, void *user);
368 static int call_on_copy(void **entry, void *user)
370 isl_map *map = *entry;
371 struct isl_union_map_foreach_data *data;
372 data = (struct isl_union_map_foreach_data *)user;
374 return data->fn(isl_map_copy(map), data->user);
377 int isl_union_map_n_map(__isl_keep isl_union_map *umap)
379 return umap ? umap->table.n : 0;
382 int isl_union_set_n_set(__isl_keep isl_union_set *uset)
384 return uset ? uset->table.n : 0;
387 int isl_union_map_foreach_map(__isl_keep isl_union_map *umap,
388 int (*fn)(__isl_take isl_map *map, void *user), void *user)
390 struct isl_union_map_foreach_data data = { fn, user };
395 return isl_hash_table_foreach(umap->dim->ctx, &umap->table,
396 &call_on_copy, &data);
399 static int copy_map(void **entry, void *user)
401 isl_map *map = *entry;
402 isl_map **map_p = user;
404 *map_p = isl_map_copy(map);
409 __isl_give isl_map *isl_map_from_union_map(__isl_take isl_union_map *umap)
416 ctx = isl_union_map_get_ctx(umap);
417 if (umap->table.n != 1)
418 isl_die(ctx, isl_error_invalid,
419 "union map needs to contain elements in exactly "
420 "one space", return isl_union_map_free(umap));
422 isl_hash_table_foreach(ctx, &umap->table, ©_map, &map);
424 isl_union_map_free(umap);
429 __isl_give isl_set *isl_set_from_union_set(__isl_take isl_union_set *uset)
431 return isl_map_from_union_map(uset);
434 __isl_give isl_map *isl_union_map_extract_map(__isl_keep isl_union_map *umap,
435 __isl_take isl_space *dim)
438 struct isl_hash_table_entry *entry;
443 hash = isl_space_get_hash(dim);
444 entry = isl_hash_table_find(umap->dim->ctx, &umap->table, hash,
447 return isl_map_empty(dim);
449 return isl_map_copy(entry->data);
455 __isl_give isl_set *isl_union_set_extract_set(__isl_keep isl_union_set *uset,
456 __isl_take isl_space *dim)
458 return (isl_set *)isl_union_map_extract_map(uset, dim);
461 /* Check if umap contains a map in the given space.
463 __isl_give int isl_union_map_contains(__isl_keep isl_union_map *umap,
464 __isl_keep isl_space *dim)
467 struct isl_hash_table_entry *entry;
472 hash = isl_space_get_hash(dim);
473 entry = isl_hash_table_find(umap->dim->ctx, &umap->table, hash,
478 __isl_give int isl_union_set_contains(__isl_keep isl_union_set *uset,
479 __isl_keep isl_space *dim)
481 return isl_union_map_contains(uset, dim);
484 int isl_union_set_foreach_set(__isl_keep isl_union_set *uset,
485 int (*fn)(__isl_take isl_set *set, void *user), void *user)
487 return isl_union_map_foreach_map(uset,
488 (int(*)(__isl_take isl_map *, void*))fn, user);
491 struct isl_union_set_foreach_point_data {
492 int (*fn)(__isl_take isl_point *pnt, void *user);
496 static int foreach_point(__isl_take isl_set *set, void *user)
498 struct isl_union_set_foreach_point_data *data = user;
501 r = isl_set_foreach_point(set, data->fn, data->user);
507 int isl_union_set_foreach_point(__isl_keep isl_union_set *uset,
508 int (*fn)(__isl_take isl_point *pnt, void *user), void *user)
510 struct isl_union_set_foreach_point_data data = { fn, user };
511 return isl_union_set_foreach_set(uset, &foreach_point, &data);
514 struct isl_union_map_gen_bin_data {
515 isl_union_map *umap2;
519 static int subtract_entry(void **entry, void *user)
521 struct isl_union_map_gen_bin_data *data = user;
523 struct isl_hash_table_entry *entry2;
524 isl_map *map = *entry;
526 hash = isl_space_get_hash(map->dim);
527 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
528 hash, &has_dim, map->dim, 0);
529 map = isl_map_copy(map);
532 map = isl_map_subtract(map, isl_map_copy(entry2->data));
534 empty = isl_map_is_empty(map);
544 data->res = isl_union_map_add_map(data->res, map);
549 static __isl_give isl_union_map *gen_bin_op(__isl_take isl_union_map *umap1,
550 __isl_take isl_union_map *umap2, int (*fn)(void **, void *))
552 struct isl_union_map_gen_bin_data data = { NULL, NULL };
554 umap1 = isl_union_map_align_params(umap1, isl_union_map_get_space(umap2));
555 umap2 = isl_union_map_align_params(umap2, isl_union_map_get_space(umap1));
557 if (!umap1 || !umap2)
561 data.res = isl_union_map_alloc(isl_space_copy(umap1->dim),
563 if (isl_hash_table_foreach(umap1->dim->ctx, &umap1->table,
567 isl_union_map_free(umap1);
568 isl_union_map_free(umap2);
571 isl_union_map_free(umap1);
572 isl_union_map_free(umap2);
573 isl_union_map_free(data.res);
577 __isl_give isl_union_map *isl_union_map_subtract(
578 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
580 return gen_bin_op(umap1, umap2, &subtract_entry);
583 __isl_give isl_union_set *isl_union_set_subtract(
584 __isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
586 return isl_union_map_subtract(uset1, uset2);
589 struct isl_union_map_gen_bin_set_data {
594 static int intersect_params_entry(void **entry, void *user)
596 struct isl_union_map_gen_bin_set_data *data = user;
597 isl_map *map = *entry;
600 map = isl_map_copy(map);
601 map = isl_map_intersect_params(map, isl_set_copy(data->set));
603 empty = isl_map_is_empty(map);
609 data->res = isl_union_map_add_map(data->res, map);
614 static __isl_give isl_union_map *gen_bin_set_op(__isl_take isl_union_map *umap,
615 __isl_take isl_set *set, int (*fn)(void **, void *))
617 struct isl_union_map_gen_bin_set_data data = { NULL, NULL };
619 umap = isl_union_map_align_params(umap, isl_set_get_space(set));
620 set = isl_set_align_params(set, isl_union_map_get_space(umap));
626 data.res = isl_union_map_alloc(isl_space_copy(umap->dim),
628 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
632 isl_union_map_free(umap);
636 isl_union_map_free(umap);
638 isl_union_map_free(data.res);
642 __isl_give isl_union_map *isl_union_map_intersect_params(
643 __isl_take isl_union_map *umap, __isl_take isl_set *set)
645 return gen_bin_set_op(umap, set, &intersect_params_entry);
648 __isl_give isl_union_set *isl_union_set_intersect_params(
649 __isl_take isl_union_set *uset, __isl_take isl_set *set)
651 return isl_union_map_intersect_params(uset, set);
654 static __isl_give isl_union_map *union_map_intersect_params(
655 __isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
657 return isl_union_map_intersect_params(umap,
658 isl_set_from_union_set(uset));
661 static __isl_give isl_union_map *union_map_gist_params(
662 __isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
664 return isl_union_map_gist_params(umap, isl_set_from_union_set(uset));
667 struct isl_union_map_match_bin_data {
668 isl_union_map *umap2;
670 __isl_give isl_map *(*fn)(__isl_take isl_map*, __isl_take isl_map*);
673 static int match_bin_entry(void **entry, void *user)
675 struct isl_union_map_match_bin_data *data = user;
677 struct isl_hash_table_entry *entry2;
678 isl_map *map = *entry;
681 hash = isl_space_get_hash(map->dim);
682 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
683 hash, &has_dim, map->dim, 0);
687 map = isl_map_copy(map);
688 map = data->fn(map, isl_map_copy(entry2->data));
690 empty = isl_map_is_empty(map);
700 data->res = isl_union_map_add_map(data->res, map);
705 static __isl_give isl_union_map *match_bin_op(__isl_take isl_union_map *umap1,
706 __isl_take isl_union_map *umap2,
707 __isl_give isl_map *(*fn)(__isl_take isl_map*, __isl_take isl_map*))
709 struct isl_union_map_match_bin_data data = { NULL, NULL, fn };
711 umap1 = isl_union_map_align_params(umap1, isl_union_map_get_space(umap2));
712 umap2 = isl_union_map_align_params(umap2, isl_union_map_get_space(umap1));
714 if (!umap1 || !umap2)
718 data.res = isl_union_map_alloc(isl_space_copy(umap1->dim),
720 if (isl_hash_table_foreach(umap1->dim->ctx, &umap1->table,
721 &match_bin_entry, &data) < 0)
724 isl_union_map_free(umap1);
725 isl_union_map_free(umap2);
728 isl_union_map_free(umap1);
729 isl_union_map_free(umap2);
730 isl_union_map_free(data.res);
734 __isl_give isl_union_map *isl_union_map_intersect(
735 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
737 return match_bin_op(umap1, umap2, &isl_map_intersect);
740 /* Compute the intersection of the two union_sets.
741 * As a special case, if exactly one of the two union_sets
742 * is a parameter domain, then intersect the parameter domain
743 * of the other one with this set.
745 __isl_give isl_union_set *isl_union_set_intersect(
746 __isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
750 p1 = isl_union_set_is_params(uset1);
751 p2 = isl_union_set_is_params(uset2);
752 if (p1 < 0 || p2 < 0)
755 return union_map_intersect_params(uset1, uset2);
757 return union_map_intersect_params(uset2, uset1);
758 return isl_union_map_intersect(uset1, uset2);
760 isl_union_set_free(uset1);
761 isl_union_set_free(uset2);
765 static int gist_params_entry(void **entry, void *user)
767 struct isl_union_map_gen_bin_set_data *data = user;
768 isl_map *map = *entry;
771 map = isl_map_copy(map);
772 map = isl_map_gist_params(map, isl_set_copy(data->set));
774 empty = isl_map_is_empty(map);
780 data->res = isl_union_map_add_map(data->res, map);
785 __isl_give isl_union_map *isl_union_map_gist_params(
786 __isl_take isl_union_map *umap, __isl_take isl_set *set)
788 return gen_bin_set_op(umap, set, &gist_params_entry);
791 __isl_give isl_union_set *isl_union_set_gist_params(
792 __isl_take isl_union_set *uset, __isl_take isl_set *set)
794 return isl_union_map_gist_params(uset, set);
797 __isl_give isl_union_map *isl_union_map_gist(__isl_take isl_union_map *umap,
798 __isl_take isl_union_map *context)
800 return match_bin_op(umap, context, &isl_map_gist);
803 __isl_give isl_union_set *isl_union_set_gist(__isl_take isl_union_set *uset,
804 __isl_take isl_union_set *context)
806 if (isl_union_set_is_params(context))
807 return union_map_gist_params(uset, context);
808 return isl_union_map_gist(uset, context);
811 static __isl_give isl_map *lex_le_set(__isl_take isl_map *set1,
812 __isl_take isl_map *set2)
814 return isl_set_lex_le_set((isl_set *)set1, (isl_set *)set2);
817 static __isl_give isl_map *lex_lt_set(__isl_take isl_map *set1,
818 __isl_take isl_map *set2)
820 return isl_set_lex_lt_set((isl_set *)set1, (isl_set *)set2);
823 __isl_give isl_union_map *isl_union_set_lex_lt_union_set(
824 __isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
826 return match_bin_op(uset1, uset2, &lex_lt_set);
829 __isl_give isl_union_map *isl_union_set_lex_le_union_set(
830 __isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
832 return match_bin_op(uset1, uset2, &lex_le_set);
835 __isl_give isl_union_map *isl_union_set_lex_gt_union_set(
836 __isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
838 return isl_union_map_reverse(isl_union_set_lex_lt_union_set(uset2, uset1));
841 __isl_give isl_union_map *isl_union_set_lex_ge_union_set(
842 __isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
844 return isl_union_map_reverse(isl_union_set_lex_le_union_set(uset2, uset1));
847 __isl_give isl_union_map *isl_union_map_lex_gt_union_map(
848 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
850 return isl_union_map_reverse(isl_union_map_lex_lt_union_map(umap2, umap1));
853 __isl_give isl_union_map *isl_union_map_lex_ge_union_map(
854 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
856 return isl_union_map_reverse(isl_union_map_lex_le_union_map(umap2, umap1));
859 static int intersect_domain_entry(void **entry, void *user)
861 struct isl_union_map_gen_bin_data *data = user;
863 struct isl_hash_table_entry *entry2;
865 isl_map *map = *entry;
868 dim = isl_map_get_space(map);
869 dim = isl_space_domain(dim);
870 hash = isl_space_get_hash(dim);
871 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
872 hash, &has_dim, dim, 0);
877 map = isl_map_copy(map);
878 map = isl_map_intersect_domain(map, isl_set_copy(entry2->data));
880 empty = isl_map_is_empty(map);
890 data->res = isl_union_map_add_map(data->res, map);
895 /* Intersect the domain of "umap" with "uset".
896 * If "uset" is a parameters domain, then intersect the parameter
897 * domain of "umap" with this set.
899 __isl_give isl_union_map *isl_union_map_intersect_domain(
900 __isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
902 if (isl_union_set_is_params(uset))
903 return union_map_intersect_params(umap, uset);
904 return gen_bin_op(umap, uset, &intersect_domain_entry);
907 static int gist_domain_entry(void **entry, void *user)
909 struct isl_union_map_gen_bin_data *data = user;
911 struct isl_hash_table_entry *entry2;
913 isl_map *map = *entry;
916 dim = isl_map_get_space(map);
917 dim = isl_space_domain(dim);
918 hash = isl_space_get_hash(dim);
919 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
920 hash, &has_dim, dim, 0);
925 map = isl_map_copy(map);
926 map = isl_map_gist_domain(map, isl_set_copy(entry2->data));
928 empty = isl_map_is_empty(map);
934 data->res = isl_union_map_add_map(data->res, map);
939 /* Compute the gist of "umap" with respect to the domain "uset".
940 * If "uset" is a parameters domain, then compute the gist
941 * with respect to this parameter domain.
943 __isl_give isl_union_map *isl_union_map_gist_domain(
944 __isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
946 if (isl_union_set_is_params(uset))
947 return union_map_gist_params(umap, uset);
948 return gen_bin_op(umap, uset, &gist_domain_entry);
951 static int gist_range_entry(void **entry, void *user)
953 struct isl_union_map_gen_bin_data *data = user;
955 struct isl_hash_table_entry *entry2;
957 isl_map *map = *entry;
960 space = isl_map_get_space(map);
961 space = isl_space_range(space);
962 hash = isl_space_get_hash(space);
963 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
964 hash, &has_dim, space, 0);
965 isl_space_free(space);
969 map = isl_map_copy(map);
970 map = isl_map_gist_range(map, isl_set_copy(entry2->data));
972 empty = isl_map_is_empty(map);
978 data->res = isl_union_map_add_map(data->res, map);
983 /* Compute the gist of "umap" with respect to the range "uset".
985 __isl_give isl_union_map *isl_union_map_gist_range(
986 __isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
988 return gen_bin_op(umap, uset, &gist_range_entry);
991 static int intersect_range_entry(void **entry, void *user)
993 struct isl_union_map_gen_bin_data *data = user;
995 struct isl_hash_table_entry *entry2;
997 isl_map *map = *entry;
1000 dim = isl_map_get_space(map);
1001 dim = isl_space_range(dim);
1002 hash = isl_space_get_hash(dim);
1003 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
1004 hash, &has_dim, dim, 0);
1005 isl_space_free(dim);
1009 map = isl_map_copy(map);
1010 map = isl_map_intersect_range(map, isl_set_copy(entry2->data));
1012 empty = isl_map_is_empty(map);
1022 data->res = isl_union_map_add_map(data->res, map);
1027 __isl_give isl_union_map *isl_union_map_intersect_range(
1028 __isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
1030 return gen_bin_op(umap, uset, &intersect_range_entry);
1033 struct isl_union_map_bin_data {
1034 isl_union_map *umap2;
1037 int (*fn)(void **entry, void *user);
1040 static int apply_range_entry(void **entry, void *user)
1042 struct isl_union_map_bin_data *data = user;
1043 isl_map *map2 = *entry;
1046 if (!isl_space_tuple_match(data->map->dim, isl_dim_out,
1047 map2->dim, isl_dim_in))
1050 map2 = isl_map_apply_range(isl_map_copy(data->map), isl_map_copy(map2));
1052 empty = isl_map_is_empty(map2);
1062 data->res = isl_union_map_add_map(data->res, map2);
1067 static int bin_entry(void **entry, void *user)
1069 struct isl_union_map_bin_data *data = user;
1070 isl_map *map = *entry;
1073 if (isl_hash_table_foreach(data->umap2->dim->ctx, &data->umap2->table,
1074 data->fn, data) < 0)
1080 static __isl_give isl_union_map *bin_op(__isl_take isl_union_map *umap1,
1081 __isl_take isl_union_map *umap2, int (*fn)(void **entry, void *user))
1083 struct isl_union_map_bin_data data = { NULL, NULL, NULL, fn };
1085 umap1 = isl_union_map_align_params(umap1, isl_union_map_get_space(umap2));
1086 umap2 = isl_union_map_align_params(umap2, isl_union_map_get_space(umap1));
1088 if (!umap1 || !umap2)
1092 data.res = isl_union_map_alloc(isl_space_copy(umap1->dim),
1094 if (isl_hash_table_foreach(umap1->dim->ctx, &umap1->table,
1095 &bin_entry, &data) < 0)
1098 isl_union_map_free(umap1);
1099 isl_union_map_free(umap2);
1102 isl_union_map_free(umap1);
1103 isl_union_map_free(umap2);
1104 isl_union_map_free(data.res);
1108 __isl_give isl_union_map *isl_union_map_apply_range(
1109 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
1111 return bin_op(umap1, umap2, &apply_range_entry);
1114 __isl_give isl_union_map *isl_union_map_apply_domain(
1115 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
1117 umap1 = isl_union_map_reverse(umap1);
1118 umap1 = isl_union_map_apply_range(umap1, umap2);
1119 return isl_union_map_reverse(umap1);
1122 __isl_give isl_union_set *isl_union_set_apply(
1123 __isl_take isl_union_set *uset, __isl_take isl_union_map *umap)
1125 return isl_union_map_apply_range(uset, umap);
1128 static int map_lex_lt_entry(void **entry, void *user)
1130 struct isl_union_map_bin_data *data = user;
1131 isl_map *map2 = *entry;
1133 if (!isl_space_tuple_match(data->map->dim, isl_dim_out,
1134 map2->dim, isl_dim_out))
1137 map2 = isl_map_lex_lt_map(isl_map_copy(data->map), isl_map_copy(map2));
1139 data->res = isl_union_map_add_map(data->res, map2);
1144 __isl_give isl_union_map *isl_union_map_lex_lt_union_map(
1145 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
1147 return bin_op(umap1, umap2, &map_lex_lt_entry);
1150 static int map_lex_le_entry(void **entry, void *user)
1152 struct isl_union_map_bin_data *data = user;
1153 isl_map *map2 = *entry;
1155 if (!isl_space_tuple_match(data->map->dim, isl_dim_out,
1156 map2->dim, isl_dim_out))
1159 map2 = isl_map_lex_le_map(isl_map_copy(data->map), isl_map_copy(map2));
1161 data->res = isl_union_map_add_map(data->res, map2);
1166 __isl_give isl_union_map *isl_union_map_lex_le_union_map(
1167 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
1169 return bin_op(umap1, umap2, &map_lex_le_entry);
1172 static int product_entry(void **entry, void *user)
1174 struct isl_union_map_bin_data *data = user;
1175 isl_map *map2 = *entry;
1177 map2 = isl_map_product(isl_map_copy(data->map), isl_map_copy(map2));
1179 data->res = isl_union_map_add_map(data->res, map2);
1184 __isl_give isl_union_map *isl_union_map_product(__isl_take isl_union_map *umap1,
1185 __isl_take isl_union_map *umap2)
1187 return bin_op(umap1, umap2, &product_entry);
1190 static int set_product_entry(void **entry, void *user)
1192 struct isl_union_map_bin_data *data = user;
1193 isl_set *set2 = *entry;
1195 set2 = isl_set_product(isl_set_copy(data->map), isl_set_copy(set2));
1197 data->res = isl_union_set_add_set(data->res, set2);
1202 __isl_give isl_union_set *isl_union_set_product(__isl_take isl_union_set *uset1,
1203 __isl_take isl_union_set *uset2)
1205 return bin_op(uset1, uset2, &set_product_entry);
1208 static int domain_product_entry(void **entry, void *user)
1210 struct isl_union_map_bin_data *data = user;
1211 isl_map *map2 = *entry;
1213 if (!isl_space_tuple_match(data->map->dim, isl_dim_out,
1214 map2->dim, isl_dim_out))
1217 map2 = isl_map_domain_product(isl_map_copy(data->map),
1218 isl_map_copy(map2));
1220 data->res = isl_union_map_add_map(data->res, map2);
1225 /* Given two maps A -> B and C -> D, construct a map [A -> C] -> (B * D)
1227 __isl_give isl_union_map *isl_union_map_domain_product(
1228 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
1230 return bin_op(umap1, umap2, &domain_product_entry);
1233 static int range_product_entry(void **entry, void *user)
1235 struct isl_union_map_bin_data *data = user;
1236 isl_map *map2 = *entry;
1238 if (!isl_space_tuple_match(data->map->dim, isl_dim_in,
1239 map2->dim, isl_dim_in))
1242 map2 = isl_map_range_product(isl_map_copy(data->map),
1243 isl_map_copy(map2));
1245 data->res = isl_union_map_add_map(data->res, map2);
1250 __isl_give isl_union_map *isl_union_map_range_product(
1251 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
1253 return bin_op(umap1, umap2, &range_product_entry);
1256 static int flat_range_product_entry(void **entry, void *user)
1258 struct isl_union_map_bin_data *data = user;
1259 isl_map *map2 = *entry;
1261 if (!isl_space_tuple_match(data->map->dim, isl_dim_in,
1262 map2->dim, isl_dim_in))
1265 map2 = isl_map_flat_range_product(isl_map_copy(data->map),
1266 isl_map_copy(map2));
1268 data->res = isl_union_map_add_map(data->res, map2);
1273 __isl_give isl_union_map *isl_union_map_flat_range_product(
1274 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
1276 return bin_op(umap1, umap2, &flat_range_product_entry);
1279 static __isl_give isl_union_set *cond_un_op(__isl_take isl_union_map *umap,
1280 int (*fn)(void **, void *))
1287 res = isl_union_map_alloc(isl_space_copy(umap->dim), umap->table.n);
1288 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table, fn, &res) < 0)
1291 isl_union_map_free(umap);
1294 isl_union_map_free(umap);
1295 isl_union_set_free(res);
1299 static int from_range_entry(void **entry, void *user)
1301 isl_map *set = *entry;
1302 isl_union_set **res = user;
1304 *res = isl_union_map_add_map(*res,
1305 isl_map_from_range(isl_set_copy(set)));
1310 __isl_give isl_union_map *isl_union_map_from_range(
1311 __isl_take isl_union_set *uset)
1313 return cond_un_op(uset, &from_range_entry);
1316 __isl_give isl_union_map *isl_union_map_from_domain(
1317 __isl_take isl_union_set *uset)
1319 return isl_union_map_reverse(isl_union_map_from_range(uset));
1322 __isl_give isl_union_map *isl_union_map_from_domain_and_range(
1323 __isl_take isl_union_set *domain, __isl_take isl_union_set *range)
1325 return isl_union_map_apply_range(isl_union_map_from_domain(domain),
1326 isl_union_map_from_range(range));
1329 static __isl_give isl_union_map *un_op(__isl_take isl_union_map *umap,
1330 int (*fn)(void **, void *))
1332 umap = isl_union_map_cow(umap);
1336 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table, fn, NULL) < 0)
1341 isl_union_map_free(umap);
1345 static int affine_entry(void **entry, void *user)
1347 isl_map **map = (isl_map **)entry;
1349 *map = isl_map_from_basic_map(isl_map_affine_hull(*map));
1351 return *map ? 0 : -1;
1354 __isl_give isl_union_map *isl_union_map_affine_hull(
1355 __isl_take isl_union_map *umap)
1357 return un_op(umap, &affine_entry);
1360 __isl_give isl_union_set *isl_union_set_affine_hull(
1361 __isl_take isl_union_set *uset)
1363 return isl_union_map_affine_hull(uset);
1366 static int polyhedral_entry(void **entry, void *user)
1368 isl_map **map = (isl_map **)entry;
1370 *map = isl_map_from_basic_map(isl_map_polyhedral_hull(*map));
1372 return *map ? 0 : -1;
1375 __isl_give isl_union_map *isl_union_map_polyhedral_hull(
1376 __isl_take isl_union_map *umap)
1378 return un_op(umap, &polyhedral_entry);
1381 __isl_give isl_union_set *isl_union_set_polyhedral_hull(
1382 __isl_take isl_union_set *uset)
1384 return isl_union_map_polyhedral_hull(uset);
1387 static int simple_entry(void **entry, void *user)
1389 isl_map **map = (isl_map **)entry;
1391 *map = isl_map_from_basic_map(isl_map_simple_hull(*map));
1393 return *map ? 0 : -1;
1396 __isl_give isl_union_map *isl_union_map_simple_hull(
1397 __isl_take isl_union_map *umap)
1399 return un_op(umap, &simple_entry);
1402 __isl_give isl_union_set *isl_union_set_simple_hull(
1403 __isl_take isl_union_set *uset)
1405 return isl_union_map_simple_hull(uset);
1408 static int inplace_entry(void **entry, void *user)
1410 __isl_give isl_map *(*fn)(__isl_take isl_map *);
1411 isl_map **map = (isl_map **)entry;
1414 fn = *(__isl_give isl_map *(**)(__isl_take isl_map *)) user;
1415 copy = fn(isl_map_copy(*map));
1425 static __isl_give isl_union_map *inplace(__isl_take isl_union_map *umap,
1426 __isl_give isl_map *(*fn)(__isl_take isl_map *))
1431 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
1432 &inplace_entry, &fn) < 0)
1437 isl_union_map_free(umap);
1441 __isl_give isl_union_map *isl_union_map_coalesce(
1442 __isl_take isl_union_map *umap)
1444 return inplace(umap, &isl_map_coalesce);
1447 __isl_give isl_union_set *isl_union_set_coalesce(
1448 __isl_take isl_union_set *uset)
1450 return isl_union_map_coalesce(uset);
1453 __isl_give isl_union_map *isl_union_map_detect_equalities(
1454 __isl_take isl_union_map *umap)
1456 return inplace(umap, &isl_map_detect_equalities);
1459 __isl_give isl_union_set *isl_union_set_detect_equalities(
1460 __isl_take isl_union_set *uset)
1462 return isl_union_map_detect_equalities(uset);
1465 __isl_give isl_union_map *isl_union_map_compute_divs(
1466 __isl_take isl_union_map *umap)
1468 return inplace(umap, &isl_map_compute_divs);
1471 __isl_give isl_union_set *isl_union_set_compute_divs(
1472 __isl_take isl_union_set *uset)
1474 return isl_union_map_compute_divs(uset);
1477 static int lexmin_entry(void **entry, void *user)
1479 isl_map **map = (isl_map **)entry;
1481 *map = isl_map_lexmin(*map);
1483 return *map ? 0 : -1;
1486 __isl_give isl_union_map *isl_union_map_lexmin(
1487 __isl_take isl_union_map *umap)
1489 return un_op(umap, &lexmin_entry);
1492 __isl_give isl_union_set *isl_union_set_lexmin(
1493 __isl_take isl_union_set *uset)
1495 return isl_union_map_lexmin(uset);
1498 static int lexmax_entry(void **entry, void *user)
1500 isl_map **map = (isl_map **)entry;
1502 *map = isl_map_lexmax(*map);
1504 return *map ? 0 : -1;
1507 __isl_give isl_union_map *isl_union_map_lexmax(
1508 __isl_take isl_union_map *umap)
1510 return un_op(umap, &lexmax_entry);
1513 __isl_give isl_union_set *isl_union_set_lexmax(
1514 __isl_take isl_union_set *uset)
1516 return isl_union_map_lexmax(uset);
1519 static int universe_entry(void **entry, void *user)
1521 isl_map *map = *entry;
1522 isl_union_map **res = user;
1524 map = isl_map_universe(isl_map_get_space(map));
1525 *res = isl_union_map_add_map(*res, map);
1530 __isl_give isl_union_map *isl_union_map_universe(__isl_take isl_union_map *umap)
1532 return cond_un_op(umap, &universe_entry);
1535 __isl_give isl_union_set *isl_union_set_universe(__isl_take isl_union_set *uset)
1537 return isl_union_map_universe(uset);
1540 static int reverse_entry(void **entry, void *user)
1542 isl_map *map = *entry;
1543 isl_union_map **res = user;
1545 *res = isl_union_map_add_map(*res, isl_map_reverse(isl_map_copy(map)));
1550 __isl_give isl_union_map *isl_union_map_reverse(__isl_take isl_union_map *umap)
1552 return cond_un_op(umap, &reverse_entry);
1555 static int params_entry(void **entry, void *user)
1557 isl_map *map = *entry;
1558 isl_union_set **res = user;
1560 *res = isl_union_set_add_set(*res, isl_map_params(isl_map_copy(map)));
1565 /* Compute the parameter domain of the given union map.
1567 __isl_give isl_set *isl_union_map_params(__isl_take isl_union_map *umap)
1571 empty = isl_union_map_is_empty(umap);
1573 return isl_union_map_free(umap);
1575 return isl_set_empty(isl_union_map_get_space(umap));
1576 return isl_set_from_union_set(cond_un_op(umap, ¶ms_entry));
1579 /* Compute the parameter domain of the given union set.
1581 __isl_give isl_set *isl_union_set_params(__isl_take isl_union_set *uset)
1583 return isl_union_map_params(uset);
1586 static int domain_entry(void **entry, void *user)
1588 isl_map *map = *entry;
1589 isl_union_set **res = user;
1591 *res = isl_union_set_add_set(*res, isl_map_domain(isl_map_copy(map)));
1596 __isl_give isl_union_set *isl_union_map_domain(__isl_take isl_union_map *umap)
1598 return cond_un_op(umap, &domain_entry);
1601 static int range_entry(void **entry, void *user)
1603 isl_map *map = *entry;
1604 isl_union_set **res = user;
1606 *res = isl_union_set_add_set(*res, isl_map_range(isl_map_copy(map)));
1611 __isl_give isl_union_set *isl_union_map_range(__isl_take isl_union_map *umap)
1613 return cond_un_op(umap, &range_entry);
1616 static int domain_map_entry(void **entry, void *user)
1618 isl_map *map = *entry;
1619 isl_union_set **res = user;
1621 *res = isl_union_map_add_map(*res,
1622 isl_map_domain_map(isl_map_copy(map)));
1627 __isl_give isl_union_map *isl_union_map_domain_map(
1628 __isl_take isl_union_map *umap)
1630 return cond_un_op(umap, &domain_map_entry);
1633 static int range_map_entry(void **entry, void *user)
1635 isl_map *map = *entry;
1636 isl_union_set **res = user;
1638 *res = isl_union_map_add_map(*res,
1639 isl_map_range_map(isl_map_copy(map)));
1644 __isl_give isl_union_map *isl_union_map_range_map(
1645 __isl_take isl_union_map *umap)
1647 return cond_un_op(umap, &range_map_entry);
1650 static int deltas_entry(void **entry, void *user)
1652 isl_map *map = *entry;
1653 isl_union_set **res = user;
1655 if (!isl_space_tuple_match(map->dim, isl_dim_in, map->dim, isl_dim_out))
1658 *res = isl_union_set_add_set(*res, isl_map_deltas(isl_map_copy(map)));
1663 __isl_give isl_union_set *isl_union_map_deltas(__isl_take isl_union_map *umap)
1665 return cond_un_op(umap, &deltas_entry);
1668 static int deltas_map_entry(void **entry, void *user)
1670 isl_map *map = *entry;
1671 isl_union_map **res = user;
1673 if (!isl_space_tuple_match(map->dim, isl_dim_in, map->dim, isl_dim_out))
1676 *res = isl_union_map_add_map(*res,
1677 isl_map_deltas_map(isl_map_copy(map)));
1682 __isl_give isl_union_map *isl_union_map_deltas_map(
1683 __isl_take isl_union_map *umap)
1685 return cond_un_op(umap, &deltas_map_entry);
1688 static int identity_entry(void **entry, void *user)
1690 isl_set *set = *entry;
1691 isl_union_map **res = user;
1693 *res = isl_union_map_add_map(*res, isl_set_identity(isl_set_copy(set)));
1698 __isl_give isl_union_map *isl_union_set_identity(__isl_take isl_union_set *uset)
1700 return cond_un_op(uset, &identity_entry);
1703 static int unwrap_entry(void **entry, void *user)
1705 isl_set *set = *entry;
1706 isl_union_set **res = user;
1708 if (!isl_set_is_wrapping(set))
1711 *res = isl_union_map_add_map(*res, isl_set_unwrap(isl_set_copy(set)));
1716 __isl_give isl_union_map *isl_union_set_unwrap(__isl_take isl_union_set *uset)
1718 return cond_un_op(uset, &unwrap_entry);
1721 static int wrap_entry(void **entry, void *user)
1723 isl_map *map = *entry;
1724 isl_union_set **res = user;
1726 *res = isl_union_set_add_set(*res, isl_map_wrap(isl_map_copy(map)));
1731 __isl_give isl_union_set *isl_union_map_wrap(__isl_take isl_union_map *umap)
1733 return cond_un_op(umap, &wrap_entry);
1736 struct isl_union_map_is_subset_data {
1737 isl_union_map *umap2;
1741 static int is_subset_entry(void **entry, void *user)
1743 struct isl_union_map_is_subset_data *data = user;
1745 struct isl_hash_table_entry *entry2;
1746 isl_map *map = *entry;
1748 hash = isl_space_get_hash(map->dim);
1749 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
1750 hash, &has_dim, map->dim, 0);
1752 int empty = isl_map_is_empty(map);
1757 data->is_subset = 0;
1761 data->is_subset = isl_map_is_subset(map, entry2->data);
1762 if (data->is_subset < 0 || !data->is_subset)
1768 int isl_union_map_is_subset(__isl_keep isl_union_map *umap1,
1769 __isl_keep isl_union_map *umap2)
1771 struct isl_union_map_is_subset_data data = { NULL, 1 };
1773 umap1 = isl_union_map_copy(umap1);
1774 umap2 = isl_union_map_copy(umap2);
1775 umap1 = isl_union_map_align_params(umap1, isl_union_map_get_space(umap2));
1776 umap2 = isl_union_map_align_params(umap2, isl_union_map_get_space(umap1));
1778 if (!umap1 || !umap2)
1782 if (isl_hash_table_foreach(umap1->dim->ctx, &umap1->table,
1783 &is_subset_entry, &data) < 0 &&
1787 isl_union_map_free(umap1);
1788 isl_union_map_free(umap2);
1790 return data.is_subset;
1792 isl_union_map_free(umap1);
1793 isl_union_map_free(umap2);
1797 int isl_union_set_is_subset(__isl_keep isl_union_set *uset1,
1798 __isl_keep isl_union_set *uset2)
1800 return isl_union_map_is_subset(uset1, uset2);
1803 int isl_union_map_is_equal(__isl_keep isl_union_map *umap1,
1804 __isl_keep isl_union_map *umap2)
1808 if (!umap1 || !umap2)
1810 is_subset = isl_union_map_is_subset(umap1, umap2);
1813 is_subset = isl_union_map_is_subset(umap2, umap1);
1817 int isl_union_set_is_equal(__isl_keep isl_union_set *uset1,
1818 __isl_keep isl_union_set *uset2)
1820 return isl_union_map_is_equal(uset1, uset2);
1823 int isl_union_map_is_strict_subset(__isl_keep isl_union_map *umap1,
1824 __isl_keep isl_union_map *umap2)
1828 if (!umap1 || !umap2)
1830 is_subset = isl_union_map_is_subset(umap1, umap2);
1833 is_subset = isl_union_map_is_subset(umap2, umap1);
1834 if (is_subset == -1)
1839 int isl_union_set_is_strict_subset(__isl_keep isl_union_set *uset1,
1840 __isl_keep isl_union_set *uset2)
1842 return isl_union_map_is_strict_subset(uset1, uset2);
1845 static int sample_entry(void **entry, void *user)
1847 isl_basic_map **sample = (isl_basic_map **)user;
1848 isl_map *map = *entry;
1850 *sample = isl_map_sample(isl_map_copy(map));
1853 if (!isl_basic_map_plain_is_empty(*sample))
1858 __isl_give isl_basic_map *isl_union_map_sample(__isl_take isl_union_map *umap)
1860 isl_basic_map *sample = NULL;
1865 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
1866 &sample_entry, &sample) < 0 &&
1871 sample = isl_basic_map_empty(isl_union_map_get_space(umap));
1873 isl_union_map_free(umap);
1877 isl_union_map_free(umap);
1881 __isl_give isl_basic_set *isl_union_set_sample(__isl_take isl_union_set *uset)
1883 return (isl_basic_set *)isl_union_map_sample(uset);
1886 struct isl_forall_data {
1888 int (*fn)(__isl_keep isl_map *map);
1891 static int forall_entry(void **entry, void *user)
1893 struct isl_forall_data *data = user;
1894 isl_map *map = *entry;
1896 data->res = data->fn(map);
1906 static int union_map_forall(__isl_keep isl_union_map *umap,
1907 int (*fn)(__isl_keep isl_map *map))
1909 struct isl_forall_data data = { 1, fn };
1914 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
1915 &forall_entry, &data) < 0 && data.res)
1921 struct isl_forall_user_data {
1923 int (*fn)(__isl_keep isl_map *map, void *user);
1927 static int forall_user_entry(void **entry, void *user)
1929 struct isl_forall_user_data *data = user;
1930 isl_map *map = *entry;
1932 data->res = data->fn(map, data->user);
1942 /* Check if fn(map, user) returns true for all maps "map" in umap.
1944 static int union_map_forall_user(__isl_keep isl_union_map *umap,
1945 int (*fn)(__isl_keep isl_map *map, void *user), void *user)
1947 struct isl_forall_user_data data = { 1, fn, user };
1952 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
1953 &forall_user_entry, &data) < 0 && data.res)
1959 int isl_union_map_is_empty(__isl_keep isl_union_map *umap)
1961 return union_map_forall(umap, &isl_map_is_empty);
1964 int isl_union_set_is_empty(__isl_keep isl_union_set *uset)
1966 return isl_union_map_is_empty(uset);
1969 static int is_subset_of_identity(__isl_keep isl_map *map)
1978 if (!isl_space_tuple_match(map->dim, isl_dim_in, map->dim, isl_dim_out))
1981 dim = isl_map_get_space(map);
1982 id = isl_map_identity(dim);
1984 is_subset = isl_map_is_subset(map, id);
1991 /* Check if the given map is single-valued.
1996 * and check if the result is a subset of the identity mapping.
1998 int isl_union_map_is_single_valued(__isl_keep isl_union_map *umap)
2000 isl_union_map *test;
2003 if (isl_union_map_n_map(umap) == 1) {
2005 umap = isl_union_map_copy(umap);
2006 map = isl_map_from_union_map(umap);
2007 sv = isl_map_is_single_valued(map);
2012 test = isl_union_map_reverse(isl_union_map_copy(umap));
2013 test = isl_union_map_apply_range(test, isl_union_map_copy(umap));
2015 sv = union_map_forall(test, &is_subset_of_identity);
2017 isl_union_map_free(test);
2022 int isl_union_map_is_injective(__isl_keep isl_union_map *umap)
2026 umap = isl_union_map_copy(umap);
2027 umap = isl_union_map_reverse(umap);
2028 in = isl_union_map_is_single_valued(umap);
2029 isl_union_map_free(umap);
2034 /* Represents a map that has a fixed value (v) for one of its
2036 * The map in this structure is not reference counted, so it
2037 * is only valid while the isl_union_map from which it was
2038 * obtained is still alive.
2040 struct isl_fixed_map {
2045 static struct isl_fixed_map *alloc_isl_fixed_map_array(isl_ctx *ctx,
2049 struct isl_fixed_map *v;
2051 v = isl_calloc_array(ctx, struct isl_fixed_map, n);
2054 for (i = 0; i < n; ++i)
2055 isl_int_init(v[i].v);
2059 static void free_isl_fixed_map_array(struct isl_fixed_map *v, int n)
2065 for (i = 0; i < n; ++i)
2066 isl_int_clear(v[i].v);
2070 /* Compare the "v" field of two isl_fixed_map structs.
2072 static int qsort_fixed_map_cmp(const void *p1, const void *p2)
2074 const struct isl_fixed_map *e1 = (const struct isl_fixed_map *) p1;
2075 const struct isl_fixed_map *e2 = (const struct isl_fixed_map *) p2;
2077 return isl_int_cmp(e1->v, e2->v);
2080 /* Internal data structure used while checking whether all maps
2081 * in a union_map have a fixed value for a given output dimension.
2082 * v is the list of maps, with the fixed value for the dimension
2083 * n is the number of maps considered so far
2084 * pos is the output dimension under investigation
2086 struct isl_fixed_dim_data {
2087 struct isl_fixed_map *v;
2092 static int fixed_at_pos(__isl_keep isl_map *map, void *user)
2094 struct isl_fixed_dim_data *data = user;
2096 data->v[data->n].map = map;
2097 return isl_map_plain_is_fixed(map, isl_dim_out, data->pos,
2098 &data->v[data->n++].v);
2101 static int plain_injective_on_range(__isl_take isl_union_map *umap,
2102 int first, int n_range);
2104 /* Given a list of the maps, with their fixed values at output dimension "pos",
2105 * check whether the ranges of the maps form an obvious partition.
2107 * We first sort the maps according to their fixed values.
2108 * If all maps have a different value, then we know the ranges form
2110 * Otherwise, we collect the maps with the same fixed value and
2111 * check whether each such collection is obviously injective
2112 * based on later dimensions.
2114 static int separates(struct isl_fixed_map *v, int n,
2115 __isl_take isl_space *dim, int pos, int n_range)
2122 qsort(v, n, sizeof(*v), &qsort_fixed_map_cmp);
2124 for (i = 0; i + 1 < n; ++i) {
2126 isl_union_map *part;
2129 for (j = i + 1; j < n; ++j)
2130 if (isl_int_ne(v[i].v, v[j].v))
2136 part = isl_union_map_alloc(isl_space_copy(dim), j - i);
2137 for (k = i; k < j; ++k)
2138 part = isl_union_map_add_map(part,
2139 isl_map_copy(v[k].map));
2141 injective = plain_injective_on_range(part, pos + 1, n_range);
2150 isl_space_free(dim);
2151 free_isl_fixed_map_array(v, n);
2154 isl_space_free(dim);
2155 free_isl_fixed_map_array(v, n);
2159 /* Check whether the maps in umap have obviously distinct ranges.
2160 * In particular, check for an output dimension in the range
2161 * [first,n_range) for which all maps have a fixed value
2162 * and then check if these values, possibly along with fixed values
2163 * at later dimensions, entail distinct ranges.
2165 static int plain_injective_on_range(__isl_take isl_union_map *umap,
2166 int first, int n_range)
2170 struct isl_fixed_dim_data data = { NULL };
2172 ctx = isl_union_map_get_ctx(umap);
2177 n = isl_union_map_n_map(umap);
2179 isl_union_map_free(umap);
2183 if (first >= n_range) {
2184 isl_union_map_free(umap);
2188 data.v = alloc_isl_fixed_map_array(ctx, n);
2192 for (data.pos = first; data.pos < n_range; ++data.pos) {
2198 fixed = union_map_forall_user(umap, &fixed_at_pos, &data);
2203 dim = isl_union_map_get_space(umap);
2204 injective = separates(data.v, n, dim, data.pos, n_range);
2205 isl_union_map_free(umap);
2209 free_isl_fixed_map_array(data.v, n);
2210 isl_union_map_free(umap);
2214 free_isl_fixed_map_array(data.v, n);
2215 isl_union_map_free(umap);
2219 /* Check whether the maps in umap that map to subsets of "ran"
2220 * have obviously distinct ranges.
2222 static int plain_injective_on_range_wrap(__isl_keep isl_set *ran, void *user)
2224 isl_union_map *umap = user;
2226 umap = isl_union_map_copy(umap);
2227 umap = isl_union_map_intersect_range(umap,
2228 isl_union_set_from_set(isl_set_copy(ran)));
2229 return plain_injective_on_range(umap, 0, isl_set_dim(ran, isl_dim_set));
2232 /* Check if the given union_map is obviously injective.
2234 * In particular, we first check if all individual maps are obviously
2235 * injective and then check if all the ranges of these maps are
2236 * obviously disjoint.
2238 int isl_union_map_plain_is_injective(__isl_keep isl_union_map *umap)
2241 isl_union_map *univ;
2244 in = union_map_forall(umap, &isl_map_plain_is_injective);
2250 univ = isl_union_map_universe(isl_union_map_copy(umap));
2251 ran = isl_union_map_range(univ);
2253 in = union_map_forall_user(ran, &plain_injective_on_range_wrap, umap);
2255 isl_union_set_free(ran);
2260 int isl_union_map_is_bijective(__isl_keep isl_union_map *umap)
2264 sv = isl_union_map_is_single_valued(umap);
2268 return isl_union_map_is_injective(umap);
2271 static int zip_entry(void **entry, void *user)
2273 isl_map *map = *entry;
2274 isl_union_map **res = user;
2276 if (!isl_map_can_zip(map))
2279 *res = isl_union_map_add_map(*res, isl_map_zip(isl_map_copy(map)));
2284 __isl_give isl_union_map *isl_union_map_zip(__isl_take isl_union_map *umap)
2286 return cond_un_op(umap, &zip_entry);
2289 static int curry_entry(void **entry, void *user)
2291 isl_map *map = *entry;
2292 isl_union_map **res = user;
2294 if (!isl_map_can_curry(map))
2297 *res = isl_union_map_add_map(*res, isl_map_curry(isl_map_copy(map)));
2302 /* Given a union map, take the maps of the form (A -> B) -> C and
2303 * return the union of the corresponding maps A -> (B -> C).
2305 __isl_give isl_union_map *isl_union_map_curry(__isl_take isl_union_map *umap)
2307 return cond_un_op(umap, &curry_entry);
2310 static int lift_entry(void **entry, void *user)
2312 isl_set *set = *entry;
2313 isl_union_set **res = user;
2315 *res = isl_union_set_add_set(*res, isl_set_lift(isl_set_copy(set)));
2320 __isl_give isl_union_set *isl_union_set_lift(__isl_take isl_union_set *uset)
2322 return cond_un_op(uset, &lift_entry);
2325 static int coefficients_entry(void **entry, void *user)
2327 isl_set *set = *entry;
2328 isl_union_set **res = user;
2330 set = isl_set_copy(set);
2331 set = isl_set_from_basic_set(isl_set_coefficients(set));
2332 *res = isl_union_set_add_set(*res, set);
2337 __isl_give isl_union_set *isl_union_set_coefficients(
2338 __isl_take isl_union_set *uset)
2347 ctx = isl_union_set_get_ctx(uset);
2348 dim = isl_space_set_alloc(ctx, 0, 0);
2349 res = isl_union_map_alloc(dim, uset->table.n);
2350 if (isl_hash_table_foreach(uset->dim->ctx, &uset->table,
2351 &coefficients_entry, &res) < 0)
2354 isl_union_set_free(uset);
2357 isl_union_set_free(uset);
2358 isl_union_set_free(res);
2362 static int solutions_entry(void **entry, void *user)
2364 isl_set *set = *entry;
2365 isl_union_set **res = user;
2367 set = isl_set_copy(set);
2368 set = isl_set_from_basic_set(isl_set_solutions(set));
2370 *res = isl_union_set_from_set(set);
2372 *res = isl_union_set_add_set(*res, set);
2380 __isl_give isl_union_set *isl_union_set_solutions(
2381 __isl_take isl_union_set *uset)
2383 isl_union_set *res = NULL;
2388 if (uset->table.n == 0) {
2389 res = isl_union_set_empty(isl_union_set_get_space(uset));
2390 isl_union_set_free(uset);
2394 if (isl_hash_table_foreach(uset->dim->ctx, &uset->table,
2395 &solutions_entry, &res) < 0)
2398 isl_union_set_free(uset);
2401 isl_union_set_free(uset);
2402 isl_union_set_free(res);