2 * Copyright 2010-2011 INRIA Saclay
4 * Use of this software is governed by the MIT 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 /* Extract the map in "umap" that lives in the given space (ignoring
437 __isl_give isl_map *isl_union_map_extract_map(__isl_keep isl_union_map *umap,
438 __isl_take isl_space *space)
441 struct isl_hash_table_entry *entry;
443 space = isl_space_drop_dims(space, isl_dim_param,
444 0, isl_space_dim(space, isl_dim_param));
445 space = isl_space_align_params(space, isl_union_map_get_space(umap));
449 hash = isl_space_get_hash(space);
450 entry = isl_hash_table_find(umap->dim->ctx, &umap->table, hash,
453 return isl_map_empty(space);
454 isl_space_free(space);
455 return isl_map_copy(entry->data);
457 isl_space_free(space);
461 __isl_give isl_set *isl_union_set_extract_set(__isl_keep isl_union_set *uset,
462 __isl_take isl_space *dim)
464 return (isl_set *)isl_union_map_extract_map(uset, dim);
467 /* Check if umap contains a map in the given space.
469 __isl_give int isl_union_map_contains(__isl_keep isl_union_map *umap,
470 __isl_keep isl_space *dim)
473 struct isl_hash_table_entry *entry;
478 hash = isl_space_get_hash(dim);
479 entry = isl_hash_table_find(umap->dim->ctx, &umap->table, hash,
484 __isl_give int isl_union_set_contains(__isl_keep isl_union_set *uset,
485 __isl_keep isl_space *dim)
487 return isl_union_map_contains(uset, dim);
490 int isl_union_set_foreach_set(__isl_keep isl_union_set *uset,
491 int (*fn)(__isl_take isl_set *set, void *user), void *user)
493 return isl_union_map_foreach_map(uset,
494 (int(*)(__isl_take isl_map *, void*))fn, user);
497 struct isl_union_set_foreach_point_data {
498 int (*fn)(__isl_take isl_point *pnt, void *user);
502 static int foreach_point(__isl_take isl_set *set, void *user)
504 struct isl_union_set_foreach_point_data *data = user;
507 r = isl_set_foreach_point(set, data->fn, data->user);
513 int isl_union_set_foreach_point(__isl_keep isl_union_set *uset,
514 int (*fn)(__isl_take isl_point *pnt, void *user), void *user)
516 struct isl_union_set_foreach_point_data data = { fn, user };
517 return isl_union_set_foreach_set(uset, &foreach_point, &data);
520 struct isl_union_map_gen_bin_data {
521 isl_union_map *umap2;
525 static int subtract_entry(void **entry, void *user)
527 struct isl_union_map_gen_bin_data *data = user;
529 struct isl_hash_table_entry *entry2;
530 isl_map *map = *entry;
532 hash = isl_space_get_hash(map->dim);
533 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
534 hash, &has_dim, map->dim, 0);
535 map = isl_map_copy(map);
538 map = isl_map_subtract(map, isl_map_copy(entry2->data));
540 empty = isl_map_is_empty(map);
550 data->res = isl_union_map_add_map(data->res, map);
555 static __isl_give isl_union_map *gen_bin_op(__isl_take isl_union_map *umap1,
556 __isl_take isl_union_map *umap2, int (*fn)(void **, void *))
558 struct isl_union_map_gen_bin_data data = { NULL, NULL };
560 umap1 = isl_union_map_align_params(umap1, isl_union_map_get_space(umap2));
561 umap2 = isl_union_map_align_params(umap2, isl_union_map_get_space(umap1));
563 if (!umap1 || !umap2)
567 data.res = isl_union_map_alloc(isl_space_copy(umap1->dim),
569 if (isl_hash_table_foreach(umap1->dim->ctx, &umap1->table,
573 isl_union_map_free(umap1);
574 isl_union_map_free(umap2);
577 isl_union_map_free(umap1);
578 isl_union_map_free(umap2);
579 isl_union_map_free(data.res);
583 __isl_give isl_union_map *isl_union_map_subtract(
584 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
586 return gen_bin_op(umap1, umap2, &subtract_entry);
589 __isl_give isl_union_set *isl_union_set_subtract(
590 __isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
592 return isl_union_map_subtract(uset1, uset2);
595 struct isl_union_map_gen_bin_set_data {
600 static int intersect_params_entry(void **entry, void *user)
602 struct isl_union_map_gen_bin_set_data *data = user;
603 isl_map *map = *entry;
606 map = isl_map_copy(map);
607 map = isl_map_intersect_params(map, isl_set_copy(data->set));
609 empty = isl_map_is_empty(map);
615 data->res = isl_union_map_add_map(data->res, map);
620 static __isl_give isl_union_map *gen_bin_set_op(__isl_take isl_union_map *umap,
621 __isl_take isl_set *set, int (*fn)(void **, void *))
623 struct isl_union_map_gen_bin_set_data data = { NULL, NULL };
625 umap = isl_union_map_align_params(umap, isl_set_get_space(set));
626 set = isl_set_align_params(set, isl_union_map_get_space(umap));
632 data.res = isl_union_map_alloc(isl_space_copy(umap->dim),
634 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
638 isl_union_map_free(umap);
642 isl_union_map_free(umap);
644 isl_union_map_free(data.res);
648 __isl_give isl_union_map *isl_union_map_intersect_params(
649 __isl_take isl_union_map *umap, __isl_take isl_set *set)
651 return gen_bin_set_op(umap, set, &intersect_params_entry);
654 __isl_give isl_union_set *isl_union_set_intersect_params(
655 __isl_take isl_union_set *uset, __isl_take isl_set *set)
657 return isl_union_map_intersect_params(uset, set);
660 static __isl_give isl_union_map *union_map_intersect_params(
661 __isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
663 return isl_union_map_intersect_params(umap,
664 isl_set_from_union_set(uset));
667 static __isl_give isl_union_map *union_map_gist_params(
668 __isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
670 return isl_union_map_gist_params(umap, isl_set_from_union_set(uset));
673 struct isl_union_map_match_bin_data {
674 isl_union_map *umap2;
676 __isl_give isl_map *(*fn)(__isl_take isl_map*, __isl_take isl_map*);
679 static int match_bin_entry(void **entry, void *user)
681 struct isl_union_map_match_bin_data *data = user;
683 struct isl_hash_table_entry *entry2;
684 isl_map *map = *entry;
687 hash = isl_space_get_hash(map->dim);
688 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
689 hash, &has_dim, map->dim, 0);
693 map = isl_map_copy(map);
694 map = data->fn(map, isl_map_copy(entry2->data));
696 empty = isl_map_is_empty(map);
706 data->res = isl_union_map_add_map(data->res, map);
711 static __isl_give isl_union_map *match_bin_op(__isl_take isl_union_map *umap1,
712 __isl_take isl_union_map *umap2,
713 __isl_give isl_map *(*fn)(__isl_take isl_map*, __isl_take isl_map*))
715 struct isl_union_map_match_bin_data data = { NULL, NULL, fn };
717 umap1 = isl_union_map_align_params(umap1, isl_union_map_get_space(umap2));
718 umap2 = isl_union_map_align_params(umap2, isl_union_map_get_space(umap1));
720 if (!umap1 || !umap2)
724 data.res = isl_union_map_alloc(isl_space_copy(umap1->dim),
726 if (isl_hash_table_foreach(umap1->dim->ctx, &umap1->table,
727 &match_bin_entry, &data) < 0)
730 isl_union_map_free(umap1);
731 isl_union_map_free(umap2);
734 isl_union_map_free(umap1);
735 isl_union_map_free(umap2);
736 isl_union_map_free(data.res);
740 __isl_give isl_union_map *isl_union_map_intersect(
741 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
743 return match_bin_op(umap1, umap2, &isl_map_intersect);
746 /* Compute the intersection of the two union_sets.
747 * As a special case, if exactly one of the two union_sets
748 * is a parameter domain, then intersect the parameter domain
749 * of the other one with this set.
751 __isl_give isl_union_set *isl_union_set_intersect(
752 __isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
756 p1 = isl_union_set_is_params(uset1);
757 p2 = isl_union_set_is_params(uset2);
758 if (p1 < 0 || p2 < 0)
761 return union_map_intersect_params(uset1, uset2);
763 return union_map_intersect_params(uset2, uset1);
764 return isl_union_map_intersect(uset1, uset2);
766 isl_union_set_free(uset1);
767 isl_union_set_free(uset2);
771 static int gist_params_entry(void **entry, void *user)
773 struct isl_union_map_gen_bin_set_data *data = user;
774 isl_map *map = *entry;
777 map = isl_map_copy(map);
778 map = isl_map_gist_params(map, isl_set_copy(data->set));
780 empty = isl_map_is_empty(map);
786 data->res = isl_union_map_add_map(data->res, map);
791 __isl_give isl_union_map *isl_union_map_gist_params(
792 __isl_take isl_union_map *umap, __isl_take isl_set *set)
794 return gen_bin_set_op(umap, set, &gist_params_entry);
797 __isl_give isl_union_set *isl_union_set_gist_params(
798 __isl_take isl_union_set *uset, __isl_take isl_set *set)
800 return isl_union_map_gist_params(uset, set);
803 __isl_give isl_union_map *isl_union_map_gist(__isl_take isl_union_map *umap,
804 __isl_take isl_union_map *context)
806 return match_bin_op(umap, context, &isl_map_gist);
809 __isl_give isl_union_set *isl_union_set_gist(__isl_take isl_union_set *uset,
810 __isl_take isl_union_set *context)
812 if (isl_union_set_is_params(context))
813 return union_map_gist_params(uset, context);
814 return isl_union_map_gist(uset, context);
817 static __isl_give isl_map *lex_le_set(__isl_take isl_map *set1,
818 __isl_take isl_map *set2)
820 return isl_set_lex_le_set((isl_set *)set1, (isl_set *)set2);
823 static __isl_give isl_map *lex_lt_set(__isl_take isl_map *set1,
824 __isl_take isl_map *set2)
826 return isl_set_lex_lt_set((isl_set *)set1, (isl_set *)set2);
829 __isl_give isl_union_map *isl_union_set_lex_lt_union_set(
830 __isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
832 return match_bin_op(uset1, uset2, &lex_lt_set);
835 __isl_give isl_union_map *isl_union_set_lex_le_union_set(
836 __isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
838 return match_bin_op(uset1, uset2, &lex_le_set);
841 __isl_give isl_union_map *isl_union_set_lex_gt_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_lt_union_set(uset2, uset1));
847 __isl_give isl_union_map *isl_union_set_lex_ge_union_set(
848 __isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
850 return isl_union_map_reverse(isl_union_set_lex_le_union_set(uset2, uset1));
853 __isl_give isl_union_map *isl_union_map_lex_gt_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_lt_union_map(umap2, umap1));
859 __isl_give isl_union_map *isl_union_map_lex_ge_union_map(
860 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
862 return isl_union_map_reverse(isl_union_map_lex_le_union_map(umap2, umap1));
865 static int intersect_domain_entry(void **entry, void *user)
867 struct isl_union_map_gen_bin_data *data = user;
869 struct isl_hash_table_entry *entry2;
871 isl_map *map = *entry;
874 dim = isl_map_get_space(map);
875 dim = isl_space_domain(dim);
876 hash = isl_space_get_hash(dim);
877 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
878 hash, &has_dim, dim, 0);
883 map = isl_map_copy(map);
884 map = isl_map_intersect_domain(map, isl_set_copy(entry2->data));
886 empty = isl_map_is_empty(map);
896 data->res = isl_union_map_add_map(data->res, map);
901 /* Intersect the domain of "umap" with "uset".
902 * If "uset" is a parameters domain, then intersect the parameter
903 * domain of "umap" with this set.
905 __isl_give isl_union_map *isl_union_map_intersect_domain(
906 __isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
908 if (isl_union_set_is_params(uset))
909 return union_map_intersect_params(umap, uset);
910 return gen_bin_op(umap, uset, &intersect_domain_entry);
913 /* Remove the elements of data->umap2 from the domain of *entry
914 * and add the result to data->res.
916 static int subtract_domain_entry(void **entry, void *user)
918 struct isl_union_map_gen_bin_data *data = user;
920 struct isl_hash_table_entry *entry2;
922 isl_map *map = *entry;
925 dim = isl_map_get_space(map);
926 dim = isl_space_domain(dim);
927 hash = isl_space_get_hash(dim);
928 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
929 hash, &has_dim, dim, 0);
932 map = isl_map_copy(map);
935 data->res = isl_union_map_add_map(data->res, map);
939 map = isl_map_subtract_domain(map, isl_set_copy(entry2->data));
941 empty = isl_map_is_empty(map);
951 data->res = isl_union_map_add_map(data->res, map);
956 /* Remove the elements of "uset" from the domain of "umap".
958 __isl_give isl_union_map *isl_union_map_subtract_domain(
959 __isl_take isl_union_map *umap, __isl_take isl_union_set *dom)
961 return gen_bin_op(umap, dom, &subtract_domain_entry);
964 /* Remove the elements of data->umap2 from the range of *entry
965 * and add the result to data->res.
967 static int subtract_range_entry(void **entry, void *user)
969 struct isl_union_map_gen_bin_data *data = user;
971 struct isl_hash_table_entry *entry2;
973 isl_map *map = *entry;
976 space = isl_map_get_space(map);
977 space = isl_space_range(space);
978 hash = isl_space_get_hash(space);
979 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
980 hash, &has_dim, space, 0);
981 isl_space_free(space);
983 map = isl_map_copy(map);
986 data->res = isl_union_map_add_map(data->res, map);
990 map = isl_map_subtract_range(map, isl_set_copy(entry2->data));
992 empty = isl_map_is_empty(map);
1002 data->res = isl_union_map_add_map(data->res, map);
1007 /* Remove the elements of "uset" from the range of "umap".
1009 __isl_give isl_union_map *isl_union_map_subtract_range(
1010 __isl_take isl_union_map *umap, __isl_take isl_union_set *dom)
1012 return gen_bin_op(umap, dom, &subtract_range_entry);
1015 static int gist_domain_entry(void **entry, void *user)
1017 struct isl_union_map_gen_bin_data *data = user;
1019 struct isl_hash_table_entry *entry2;
1021 isl_map *map = *entry;
1024 dim = isl_map_get_space(map);
1025 dim = isl_space_domain(dim);
1026 hash = isl_space_get_hash(dim);
1027 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
1028 hash, &has_dim, dim, 0);
1029 isl_space_free(dim);
1033 map = isl_map_copy(map);
1034 map = isl_map_gist_domain(map, isl_set_copy(entry2->data));
1036 empty = isl_map_is_empty(map);
1042 data->res = isl_union_map_add_map(data->res, map);
1047 /* Compute the gist of "umap" with respect to the domain "uset".
1048 * If "uset" is a parameters domain, then compute the gist
1049 * with respect to this parameter domain.
1051 __isl_give isl_union_map *isl_union_map_gist_domain(
1052 __isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
1054 if (isl_union_set_is_params(uset))
1055 return union_map_gist_params(umap, uset);
1056 return gen_bin_op(umap, uset, &gist_domain_entry);
1059 static int gist_range_entry(void **entry, void *user)
1061 struct isl_union_map_gen_bin_data *data = user;
1063 struct isl_hash_table_entry *entry2;
1065 isl_map *map = *entry;
1068 space = isl_map_get_space(map);
1069 space = isl_space_range(space);
1070 hash = isl_space_get_hash(space);
1071 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
1072 hash, &has_dim, space, 0);
1073 isl_space_free(space);
1077 map = isl_map_copy(map);
1078 map = isl_map_gist_range(map, isl_set_copy(entry2->data));
1080 empty = isl_map_is_empty(map);
1086 data->res = isl_union_map_add_map(data->res, map);
1091 /* Compute the gist of "umap" with respect to the range "uset".
1093 __isl_give isl_union_map *isl_union_map_gist_range(
1094 __isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
1096 return gen_bin_op(umap, uset, &gist_range_entry);
1099 static int intersect_range_entry(void **entry, void *user)
1101 struct isl_union_map_gen_bin_data *data = user;
1103 struct isl_hash_table_entry *entry2;
1105 isl_map *map = *entry;
1108 dim = isl_map_get_space(map);
1109 dim = isl_space_range(dim);
1110 hash = isl_space_get_hash(dim);
1111 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
1112 hash, &has_dim, dim, 0);
1113 isl_space_free(dim);
1117 map = isl_map_copy(map);
1118 map = isl_map_intersect_range(map, isl_set_copy(entry2->data));
1120 empty = isl_map_is_empty(map);
1130 data->res = isl_union_map_add_map(data->res, map);
1135 __isl_give isl_union_map *isl_union_map_intersect_range(
1136 __isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
1138 return gen_bin_op(umap, uset, &intersect_range_entry);
1141 struct isl_union_map_bin_data {
1142 isl_union_map *umap2;
1145 int (*fn)(void **entry, void *user);
1148 static int apply_range_entry(void **entry, void *user)
1150 struct isl_union_map_bin_data *data = user;
1151 isl_map *map2 = *entry;
1154 if (!isl_space_tuple_match(data->map->dim, isl_dim_out,
1155 map2->dim, isl_dim_in))
1158 map2 = isl_map_apply_range(isl_map_copy(data->map), isl_map_copy(map2));
1160 empty = isl_map_is_empty(map2);
1170 data->res = isl_union_map_add_map(data->res, map2);
1175 static int bin_entry(void **entry, void *user)
1177 struct isl_union_map_bin_data *data = user;
1178 isl_map *map = *entry;
1181 if (isl_hash_table_foreach(data->umap2->dim->ctx, &data->umap2->table,
1182 data->fn, data) < 0)
1188 static __isl_give isl_union_map *bin_op(__isl_take isl_union_map *umap1,
1189 __isl_take isl_union_map *umap2, int (*fn)(void **entry, void *user))
1191 struct isl_union_map_bin_data data = { NULL, NULL, NULL, fn };
1193 umap1 = isl_union_map_align_params(umap1, isl_union_map_get_space(umap2));
1194 umap2 = isl_union_map_align_params(umap2, isl_union_map_get_space(umap1));
1196 if (!umap1 || !umap2)
1200 data.res = isl_union_map_alloc(isl_space_copy(umap1->dim),
1202 if (isl_hash_table_foreach(umap1->dim->ctx, &umap1->table,
1203 &bin_entry, &data) < 0)
1206 isl_union_map_free(umap1);
1207 isl_union_map_free(umap2);
1210 isl_union_map_free(umap1);
1211 isl_union_map_free(umap2);
1212 isl_union_map_free(data.res);
1216 __isl_give isl_union_map *isl_union_map_apply_range(
1217 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
1219 return bin_op(umap1, umap2, &apply_range_entry);
1222 __isl_give isl_union_map *isl_union_map_apply_domain(
1223 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
1225 umap1 = isl_union_map_reverse(umap1);
1226 umap1 = isl_union_map_apply_range(umap1, umap2);
1227 return isl_union_map_reverse(umap1);
1230 __isl_give isl_union_set *isl_union_set_apply(
1231 __isl_take isl_union_set *uset, __isl_take isl_union_map *umap)
1233 return isl_union_map_apply_range(uset, umap);
1236 static int map_lex_lt_entry(void **entry, void *user)
1238 struct isl_union_map_bin_data *data = user;
1239 isl_map *map2 = *entry;
1241 if (!isl_space_tuple_match(data->map->dim, isl_dim_out,
1242 map2->dim, isl_dim_out))
1245 map2 = isl_map_lex_lt_map(isl_map_copy(data->map), isl_map_copy(map2));
1247 data->res = isl_union_map_add_map(data->res, map2);
1252 __isl_give isl_union_map *isl_union_map_lex_lt_union_map(
1253 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
1255 return bin_op(umap1, umap2, &map_lex_lt_entry);
1258 static int map_lex_le_entry(void **entry, void *user)
1260 struct isl_union_map_bin_data *data = user;
1261 isl_map *map2 = *entry;
1263 if (!isl_space_tuple_match(data->map->dim, isl_dim_out,
1264 map2->dim, isl_dim_out))
1267 map2 = isl_map_lex_le_map(isl_map_copy(data->map), isl_map_copy(map2));
1269 data->res = isl_union_map_add_map(data->res, map2);
1274 __isl_give isl_union_map *isl_union_map_lex_le_union_map(
1275 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
1277 return bin_op(umap1, umap2, &map_lex_le_entry);
1280 static int product_entry(void **entry, void *user)
1282 struct isl_union_map_bin_data *data = user;
1283 isl_map *map2 = *entry;
1285 map2 = isl_map_product(isl_map_copy(data->map), isl_map_copy(map2));
1287 data->res = isl_union_map_add_map(data->res, map2);
1292 __isl_give isl_union_map *isl_union_map_product(__isl_take isl_union_map *umap1,
1293 __isl_take isl_union_map *umap2)
1295 return bin_op(umap1, umap2, &product_entry);
1298 static int set_product_entry(void **entry, void *user)
1300 struct isl_union_map_bin_data *data = user;
1301 isl_set *set2 = *entry;
1303 set2 = isl_set_product(isl_set_copy(data->map), isl_set_copy(set2));
1305 data->res = isl_union_set_add_set(data->res, set2);
1310 __isl_give isl_union_set *isl_union_set_product(__isl_take isl_union_set *uset1,
1311 __isl_take isl_union_set *uset2)
1313 return bin_op(uset1, uset2, &set_product_entry);
1316 static int domain_product_entry(void **entry, void *user)
1318 struct isl_union_map_bin_data *data = user;
1319 isl_map *map2 = *entry;
1321 if (!isl_space_tuple_match(data->map->dim, isl_dim_out,
1322 map2->dim, isl_dim_out))
1325 map2 = isl_map_domain_product(isl_map_copy(data->map),
1326 isl_map_copy(map2));
1328 data->res = isl_union_map_add_map(data->res, map2);
1333 /* Given two maps A -> B and C -> D, construct a map [A -> C] -> (B * D)
1335 __isl_give isl_union_map *isl_union_map_domain_product(
1336 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
1338 return bin_op(umap1, umap2, &domain_product_entry);
1341 static int range_product_entry(void **entry, void *user)
1343 struct isl_union_map_bin_data *data = user;
1344 isl_map *map2 = *entry;
1346 if (!isl_space_tuple_match(data->map->dim, isl_dim_in,
1347 map2->dim, isl_dim_in))
1350 map2 = isl_map_range_product(isl_map_copy(data->map),
1351 isl_map_copy(map2));
1353 data->res = isl_union_map_add_map(data->res, map2);
1358 __isl_give isl_union_map *isl_union_map_range_product(
1359 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
1361 return bin_op(umap1, umap2, &range_product_entry);
1364 static int flat_range_product_entry(void **entry, void *user)
1366 struct isl_union_map_bin_data *data = user;
1367 isl_map *map2 = *entry;
1369 if (!isl_space_tuple_match(data->map->dim, isl_dim_in,
1370 map2->dim, isl_dim_in))
1373 map2 = isl_map_flat_range_product(isl_map_copy(data->map),
1374 isl_map_copy(map2));
1376 data->res = isl_union_map_add_map(data->res, map2);
1381 __isl_give isl_union_map *isl_union_map_flat_range_product(
1382 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
1384 return bin_op(umap1, umap2, &flat_range_product_entry);
1387 static __isl_give isl_union_set *cond_un_op(__isl_take isl_union_map *umap,
1388 int (*fn)(void **, void *))
1395 res = isl_union_map_alloc(isl_space_copy(umap->dim), umap->table.n);
1396 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table, fn, &res) < 0)
1399 isl_union_map_free(umap);
1402 isl_union_map_free(umap);
1403 isl_union_set_free(res);
1407 static int from_range_entry(void **entry, void *user)
1409 isl_map *set = *entry;
1410 isl_union_set **res = user;
1412 *res = isl_union_map_add_map(*res,
1413 isl_map_from_range(isl_set_copy(set)));
1418 __isl_give isl_union_map *isl_union_map_from_range(
1419 __isl_take isl_union_set *uset)
1421 return cond_un_op(uset, &from_range_entry);
1424 __isl_give isl_union_map *isl_union_map_from_domain(
1425 __isl_take isl_union_set *uset)
1427 return isl_union_map_reverse(isl_union_map_from_range(uset));
1430 __isl_give isl_union_map *isl_union_map_from_domain_and_range(
1431 __isl_take isl_union_set *domain, __isl_take isl_union_set *range)
1433 return isl_union_map_apply_range(isl_union_map_from_domain(domain),
1434 isl_union_map_from_range(range));
1437 static __isl_give isl_union_map *un_op(__isl_take isl_union_map *umap,
1438 int (*fn)(void **, void *))
1440 umap = isl_union_map_cow(umap);
1444 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table, fn, NULL) < 0)
1449 isl_union_map_free(umap);
1453 static int affine_entry(void **entry, void *user)
1455 isl_map **map = (isl_map **)entry;
1457 *map = isl_map_from_basic_map(isl_map_affine_hull(*map));
1459 return *map ? 0 : -1;
1462 __isl_give isl_union_map *isl_union_map_affine_hull(
1463 __isl_take isl_union_map *umap)
1465 return un_op(umap, &affine_entry);
1468 __isl_give isl_union_set *isl_union_set_affine_hull(
1469 __isl_take isl_union_set *uset)
1471 return isl_union_map_affine_hull(uset);
1474 static int polyhedral_entry(void **entry, void *user)
1476 isl_map **map = (isl_map **)entry;
1478 *map = isl_map_from_basic_map(isl_map_polyhedral_hull(*map));
1480 return *map ? 0 : -1;
1483 __isl_give isl_union_map *isl_union_map_polyhedral_hull(
1484 __isl_take isl_union_map *umap)
1486 return un_op(umap, &polyhedral_entry);
1489 __isl_give isl_union_set *isl_union_set_polyhedral_hull(
1490 __isl_take isl_union_set *uset)
1492 return isl_union_map_polyhedral_hull(uset);
1495 static int simple_entry(void **entry, void *user)
1497 isl_map **map = (isl_map **)entry;
1499 *map = isl_map_from_basic_map(isl_map_simple_hull(*map));
1501 return *map ? 0 : -1;
1504 __isl_give isl_union_map *isl_union_map_simple_hull(
1505 __isl_take isl_union_map *umap)
1507 return un_op(umap, &simple_entry);
1510 __isl_give isl_union_set *isl_union_set_simple_hull(
1511 __isl_take isl_union_set *uset)
1513 return isl_union_map_simple_hull(uset);
1516 static int inplace_entry(void **entry, void *user)
1518 __isl_give isl_map *(*fn)(__isl_take isl_map *);
1519 isl_map **map = (isl_map **)entry;
1522 fn = *(__isl_give isl_map *(**)(__isl_take isl_map *)) user;
1523 copy = fn(isl_map_copy(*map));
1533 static __isl_give isl_union_map *inplace(__isl_take isl_union_map *umap,
1534 __isl_give isl_map *(*fn)(__isl_take isl_map *))
1539 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
1540 &inplace_entry, &fn) < 0)
1545 isl_union_map_free(umap);
1549 __isl_give isl_union_map *isl_union_map_coalesce(
1550 __isl_take isl_union_map *umap)
1552 return inplace(umap, &isl_map_coalesce);
1555 __isl_give isl_union_set *isl_union_set_coalesce(
1556 __isl_take isl_union_set *uset)
1558 return isl_union_map_coalesce(uset);
1561 __isl_give isl_union_map *isl_union_map_detect_equalities(
1562 __isl_take isl_union_map *umap)
1564 return inplace(umap, &isl_map_detect_equalities);
1567 __isl_give isl_union_set *isl_union_set_detect_equalities(
1568 __isl_take isl_union_set *uset)
1570 return isl_union_map_detect_equalities(uset);
1573 __isl_give isl_union_map *isl_union_map_compute_divs(
1574 __isl_take isl_union_map *umap)
1576 return inplace(umap, &isl_map_compute_divs);
1579 __isl_give isl_union_set *isl_union_set_compute_divs(
1580 __isl_take isl_union_set *uset)
1582 return isl_union_map_compute_divs(uset);
1585 static int lexmin_entry(void **entry, void *user)
1587 isl_map **map = (isl_map **)entry;
1589 *map = isl_map_lexmin(*map);
1591 return *map ? 0 : -1;
1594 __isl_give isl_union_map *isl_union_map_lexmin(
1595 __isl_take isl_union_map *umap)
1597 return un_op(umap, &lexmin_entry);
1600 __isl_give isl_union_set *isl_union_set_lexmin(
1601 __isl_take isl_union_set *uset)
1603 return isl_union_map_lexmin(uset);
1606 static int lexmax_entry(void **entry, void *user)
1608 isl_map **map = (isl_map **)entry;
1610 *map = isl_map_lexmax(*map);
1612 return *map ? 0 : -1;
1615 __isl_give isl_union_map *isl_union_map_lexmax(
1616 __isl_take isl_union_map *umap)
1618 return un_op(umap, &lexmax_entry);
1621 __isl_give isl_union_set *isl_union_set_lexmax(
1622 __isl_take isl_union_set *uset)
1624 return isl_union_map_lexmax(uset);
1627 static int universe_entry(void **entry, void *user)
1629 isl_map *map = *entry;
1630 isl_union_map **res = user;
1632 map = isl_map_universe(isl_map_get_space(map));
1633 *res = isl_union_map_add_map(*res, map);
1638 __isl_give isl_union_map *isl_union_map_universe(__isl_take isl_union_map *umap)
1640 return cond_un_op(umap, &universe_entry);
1643 __isl_give isl_union_set *isl_union_set_universe(__isl_take isl_union_set *uset)
1645 return isl_union_map_universe(uset);
1648 static int reverse_entry(void **entry, void *user)
1650 isl_map *map = *entry;
1651 isl_union_map **res = user;
1653 *res = isl_union_map_add_map(*res, isl_map_reverse(isl_map_copy(map)));
1658 __isl_give isl_union_map *isl_union_map_reverse(__isl_take isl_union_map *umap)
1660 return cond_un_op(umap, &reverse_entry);
1663 static int params_entry(void **entry, void *user)
1665 isl_map *map = *entry;
1666 isl_union_set **res = user;
1668 *res = isl_union_set_add_set(*res, isl_map_params(isl_map_copy(map)));
1673 /* Compute the parameter domain of the given union map.
1675 __isl_give isl_set *isl_union_map_params(__isl_take isl_union_map *umap)
1679 empty = isl_union_map_is_empty(umap);
1681 return isl_union_map_free(umap);
1683 return isl_set_empty(isl_union_map_get_space(umap));
1684 return isl_set_from_union_set(cond_un_op(umap, ¶ms_entry));
1687 /* Compute the parameter domain of the given union set.
1689 __isl_give isl_set *isl_union_set_params(__isl_take isl_union_set *uset)
1691 return isl_union_map_params(uset);
1694 static int domain_entry(void **entry, void *user)
1696 isl_map *map = *entry;
1697 isl_union_set **res = user;
1699 *res = isl_union_set_add_set(*res, isl_map_domain(isl_map_copy(map)));
1704 __isl_give isl_union_set *isl_union_map_domain(__isl_take isl_union_map *umap)
1706 return cond_un_op(umap, &domain_entry);
1709 static int range_entry(void **entry, void *user)
1711 isl_map *map = *entry;
1712 isl_union_set **res = user;
1714 *res = isl_union_set_add_set(*res, isl_map_range(isl_map_copy(map)));
1719 __isl_give isl_union_set *isl_union_map_range(__isl_take isl_union_map *umap)
1721 return cond_un_op(umap, &range_entry);
1724 static int domain_map_entry(void **entry, void *user)
1726 isl_map *map = *entry;
1727 isl_union_set **res = user;
1729 *res = isl_union_map_add_map(*res,
1730 isl_map_domain_map(isl_map_copy(map)));
1735 __isl_give isl_union_map *isl_union_map_domain_map(
1736 __isl_take isl_union_map *umap)
1738 return cond_un_op(umap, &domain_map_entry);
1741 static int range_map_entry(void **entry, void *user)
1743 isl_map *map = *entry;
1744 isl_union_set **res = user;
1746 *res = isl_union_map_add_map(*res,
1747 isl_map_range_map(isl_map_copy(map)));
1752 __isl_give isl_union_map *isl_union_map_range_map(
1753 __isl_take isl_union_map *umap)
1755 return cond_un_op(umap, &range_map_entry);
1758 static int deltas_entry(void **entry, void *user)
1760 isl_map *map = *entry;
1761 isl_union_set **res = user;
1763 if (!isl_space_tuple_match(map->dim, isl_dim_in, map->dim, isl_dim_out))
1766 *res = isl_union_set_add_set(*res, isl_map_deltas(isl_map_copy(map)));
1771 __isl_give isl_union_set *isl_union_map_deltas(__isl_take isl_union_map *umap)
1773 return cond_un_op(umap, &deltas_entry);
1776 static int deltas_map_entry(void **entry, void *user)
1778 isl_map *map = *entry;
1779 isl_union_map **res = user;
1781 if (!isl_space_tuple_match(map->dim, isl_dim_in, map->dim, isl_dim_out))
1784 *res = isl_union_map_add_map(*res,
1785 isl_map_deltas_map(isl_map_copy(map)));
1790 __isl_give isl_union_map *isl_union_map_deltas_map(
1791 __isl_take isl_union_map *umap)
1793 return cond_un_op(umap, &deltas_map_entry);
1796 static int identity_entry(void **entry, void *user)
1798 isl_set *set = *entry;
1799 isl_union_map **res = user;
1801 *res = isl_union_map_add_map(*res, isl_set_identity(isl_set_copy(set)));
1806 __isl_give isl_union_map *isl_union_set_identity(__isl_take isl_union_set *uset)
1808 return cond_un_op(uset, &identity_entry);
1811 static int unwrap_entry(void **entry, void *user)
1813 isl_set *set = *entry;
1814 isl_union_set **res = user;
1816 if (!isl_set_is_wrapping(set))
1819 *res = isl_union_map_add_map(*res, isl_set_unwrap(isl_set_copy(set)));
1824 __isl_give isl_union_map *isl_union_set_unwrap(__isl_take isl_union_set *uset)
1826 return cond_un_op(uset, &unwrap_entry);
1829 static int wrap_entry(void **entry, void *user)
1831 isl_map *map = *entry;
1832 isl_union_set **res = user;
1834 *res = isl_union_set_add_set(*res, isl_map_wrap(isl_map_copy(map)));
1839 __isl_give isl_union_set *isl_union_map_wrap(__isl_take isl_union_map *umap)
1841 return cond_un_op(umap, &wrap_entry);
1844 struct isl_union_map_is_subset_data {
1845 isl_union_map *umap2;
1849 static int is_subset_entry(void **entry, void *user)
1851 struct isl_union_map_is_subset_data *data = user;
1853 struct isl_hash_table_entry *entry2;
1854 isl_map *map = *entry;
1856 hash = isl_space_get_hash(map->dim);
1857 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
1858 hash, &has_dim, map->dim, 0);
1860 int empty = isl_map_is_empty(map);
1865 data->is_subset = 0;
1869 data->is_subset = isl_map_is_subset(map, entry2->data);
1870 if (data->is_subset < 0 || !data->is_subset)
1876 int isl_union_map_is_subset(__isl_keep isl_union_map *umap1,
1877 __isl_keep isl_union_map *umap2)
1879 struct isl_union_map_is_subset_data data = { NULL, 1 };
1881 umap1 = isl_union_map_copy(umap1);
1882 umap2 = isl_union_map_copy(umap2);
1883 umap1 = isl_union_map_align_params(umap1, isl_union_map_get_space(umap2));
1884 umap2 = isl_union_map_align_params(umap2, isl_union_map_get_space(umap1));
1886 if (!umap1 || !umap2)
1890 if (isl_hash_table_foreach(umap1->dim->ctx, &umap1->table,
1891 &is_subset_entry, &data) < 0 &&
1895 isl_union_map_free(umap1);
1896 isl_union_map_free(umap2);
1898 return data.is_subset;
1900 isl_union_map_free(umap1);
1901 isl_union_map_free(umap2);
1905 int isl_union_set_is_subset(__isl_keep isl_union_set *uset1,
1906 __isl_keep isl_union_set *uset2)
1908 return isl_union_map_is_subset(uset1, uset2);
1911 int isl_union_map_is_equal(__isl_keep isl_union_map *umap1,
1912 __isl_keep isl_union_map *umap2)
1916 if (!umap1 || !umap2)
1918 is_subset = isl_union_map_is_subset(umap1, umap2);
1921 is_subset = isl_union_map_is_subset(umap2, umap1);
1925 int isl_union_set_is_equal(__isl_keep isl_union_set *uset1,
1926 __isl_keep isl_union_set *uset2)
1928 return isl_union_map_is_equal(uset1, uset2);
1931 int isl_union_map_is_strict_subset(__isl_keep isl_union_map *umap1,
1932 __isl_keep isl_union_map *umap2)
1936 if (!umap1 || !umap2)
1938 is_subset = isl_union_map_is_subset(umap1, umap2);
1941 is_subset = isl_union_map_is_subset(umap2, umap1);
1942 if (is_subset == -1)
1947 int isl_union_set_is_strict_subset(__isl_keep isl_union_set *uset1,
1948 __isl_keep isl_union_set *uset2)
1950 return isl_union_map_is_strict_subset(uset1, uset2);
1953 static int sample_entry(void **entry, void *user)
1955 isl_basic_map **sample = (isl_basic_map **)user;
1956 isl_map *map = *entry;
1958 *sample = isl_map_sample(isl_map_copy(map));
1961 if (!isl_basic_map_plain_is_empty(*sample))
1966 __isl_give isl_basic_map *isl_union_map_sample(__isl_take isl_union_map *umap)
1968 isl_basic_map *sample = NULL;
1973 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
1974 &sample_entry, &sample) < 0 &&
1979 sample = isl_basic_map_empty(isl_union_map_get_space(umap));
1981 isl_union_map_free(umap);
1985 isl_union_map_free(umap);
1989 __isl_give isl_basic_set *isl_union_set_sample(__isl_take isl_union_set *uset)
1991 return (isl_basic_set *)isl_union_map_sample(uset);
1994 struct isl_forall_data {
1996 int (*fn)(__isl_keep isl_map *map);
1999 static int forall_entry(void **entry, void *user)
2001 struct isl_forall_data *data = user;
2002 isl_map *map = *entry;
2004 data->res = data->fn(map);
2014 static int union_map_forall(__isl_keep isl_union_map *umap,
2015 int (*fn)(__isl_keep isl_map *map))
2017 struct isl_forall_data data = { 1, fn };
2022 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
2023 &forall_entry, &data) < 0 && data.res)
2029 struct isl_forall_user_data {
2031 int (*fn)(__isl_keep isl_map *map, void *user);
2035 static int forall_user_entry(void **entry, void *user)
2037 struct isl_forall_user_data *data = user;
2038 isl_map *map = *entry;
2040 data->res = data->fn(map, data->user);
2050 /* Check if fn(map, user) returns true for all maps "map" in umap.
2052 static int union_map_forall_user(__isl_keep isl_union_map *umap,
2053 int (*fn)(__isl_keep isl_map *map, void *user), void *user)
2055 struct isl_forall_user_data data = { 1, fn, user };
2060 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
2061 &forall_user_entry, &data) < 0 && data.res)
2067 int isl_union_map_is_empty(__isl_keep isl_union_map *umap)
2069 return union_map_forall(umap, &isl_map_is_empty);
2072 int isl_union_set_is_empty(__isl_keep isl_union_set *uset)
2074 return isl_union_map_is_empty(uset);
2077 static int is_subset_of_identity(__isl_keep isl_map *map)
2086 if (!isl_space_tuple_match(map->dim, isl_dim_in, map->dim, isl_dim_out))
2089 dim = isl_map_get_space(map);
2090 id = isl_map_identity(dim);
2092 is_subset = isl_map_is_subset(map, id);
2099 /* Check if the given map is single-valued.
2104 * and check if the result is a subset of the identity mapping.
2106 int isl_union_map_is_single_valued(__isl_keep isl_union_map *umap)
2108 isl_union_map *test;
2111 if (isl_union_map_n_map(umap) == 1) {
2113 umap = isl_union_map_copy(umap);
2114 map = isl_map_from_union_map(umap);
2115 sv = isl_map_is_single_valued(map);
2120 test = isl_union_map_reverse(isl_union_map_copy(umap));
2121 test = isl_union_map_apply_range(test, isl_union_map_copy(umap));
2123 sv = union_map_forall(test, &is_subset_of_identity);
2125 isl_union_map_free(test);
2130 int isl_union_map_is_injective(__isl_keep isl_union_map *umap)
2134 umap = isl_union_map_copy(umap);
2135 umap = isl_union_map_reverse(umap);
2136 in = isl_union_map_is_single_valued(umap);
2137 isl_union_map_free(umap);
2142 /* Represents a map that has a fixed value (v) for one of its
2144 * The map in this structure is not reference counted, so it
2145 * is only valid while the isl_union_map from which it was
2146 * obtained is still alive.
2148 struct isl_fixed_map {
2153 static struct isl_fixed_map *alloc_isl_fixed_map_array(isl_ctx *ctx,
2157 struct isl_fixed_map *v;
2159 v = isl_calloc_array(ctx, struct isl_fixed_map, n);
2162 for (i = 0; i < n; ++i)
2163 isl_int_init(v[i].v);
2167 static void free_isl_fixed_map_array(struct isl_fixed_map *v, int n)
2173 for (i = 0; i < n; ++i)
2174 isl_int_clear(v[i].v);
2178 /* Compare the "v" field of two isl_fixed_map structs.
2180 static int qsort_fixed_map_cmp(const void *p1, const void *p2)
2182 const struct isl_fixed_map *e1 = (const struct isl_fixed_map *) p1;
2183 const struct isl_fixed_map *e2 = (const struct isl_fixed_map *) p2;
2185 return isl_int_cmp(e1->v, e2->v);
2188 /* Internal data structure used while checking whether all maps
2189 * in a union_map have a fixed value for a given output dimension.
2190 * v is the list of maps, with the fixed value for the dimension
2191 * n is the number of maps considered so far
2192 * pos is the output dimension under investigation
2194 struct isl_fixed_dim_data {
2195 struct isl_fixed_map *v;
2200 static int fixed_at_pos(__isl_keep isl_map *map, void *user)
2202 struct isl_fixed_dim_data *data = user;
2204 data->v[data->n].map = map;
2205 return isl_map_plain_is_fixed(map, isl_dim_out, data->pos,
2206 &data->v[data->n++].v);
2209 static int plain_injective_on_range(__isl_take isl_union_map *umap,
2210 int first, int n_range);
2212 /* Given a list of the maps, with their fixed values at output dimension "pos",
2213 * check whether the ranges of the maps form an obvious partition.
2215 * We first sort the maps according to their fixed values.
2216 * If all maps have a different value, then we know the ranges form
2218 * Otherwise, we collect the maps with the same fixed value and
2219 * check whether each such collection is obviously injective
2220 * based on later dimensions.
2222 static int separates(struct isl_fixed_map *v, int n,
2223 __isl_take isl_space *dim, int pos, int n_range)
2230 qsort(v, n, sizeof(*v), &qsort_fixed_map_cmp);
2232 for (i = 0; i + 1 < n; ++i) {
2234 isl_union_map *part;
2237 for (j = i + 1; j < n; ++j)
2238 if (isl_int_ne(v[i].v, v[j].v))
2244 part = isl_union_map_alloc(isl_space_copy(dim), j - i);
2245 for (k = i; k < j; ++k)
2246 part = isl_union_map_add_map(part,
2247 isl_map_copy(v[k].map));
2249 injective = plain_injective_on_range(part, pos + 1, n_range);
2258 isl_space_free(dim);
2259 free_isl_fixed_map_array(v, n);
2262 isl_space_free(dim);
2263 free_isl_fixed_map_array(v, n);
2267 /* Check whether the maps in umap have obviously distinct ranges.
2268 * In particular, check for an output dimension in the range
2269 * [first,n_range) for which all maps have a fixed value
2270 * and then check if these values, possibly along with fixed values
2271 * at later dimensions, entail distinct ranges.
2273 static int plain_injective_on_range(__isl_take isl_union_map *umap,
2274 int first, int n_range)
2278 struct isl_fixed_dim_data data = { NULL };
2280 ctx = isl_union_map_get_ctx(umap);
2282 n = isl_union_map_n_map(umap);
2287 isl_union_map_free(umap);
2291 if (first >= n_range) {
2292 isl_union_map_free(umap);
2296 data.v = alloc_isl_fixed_map_array(ctx, n);
2300 for (data.pos = first; data.pos < n_range; ++data.pos) {
2306 fixed = union_map_forall_user(umap, &fixed_at_pos, &data);
2311 dim = isl_union_map_get_space(umap);
2312 injective = separates(data.v, n, dim, data.pos, n_range);
2313 isl_union_map_free(umap);
2317 free_isl_fixed_map_array(data.v, n);
2318 isl_union_map_free(umap);
2322 free_isl_fixed_map_array(data.v, n);
2323 isl_union_map_free(umap);
2327 /* Check whether the maps in umap that map to subsets of "ran"
2328 * have obviously distinct ranges.
2330 static int plain_injective_on_range_wrap(__isl_keep isl_set *ran, void *user)
2332 isl_union_map *umap = user;
2334 umap = isl_union_map_copy(umap);
2335 umap = isl_union_map_intersect_range(umap,
2336 isl_union_set_from_set(isl_set_copy(ran)));
2337 return plain_injective_on_range(umap, 0, isl_set_dim(ran, isl_dim_set));
2340 /* Check if the given union_map is obviously injective.
2342 * In particular, we first check if all individual maps are obviously
2343 * injective and then check if all the ranges of these maps are
2344 * obviously disjoint.
2346 int isl_union_map_plain_is_injective(__isl_keep isl_union_map *umap)
2349 isl_union_map *univ;
2352 in = union_map_forall(umap, &isl_map_plain_is_injective);
2358 univ = isl_union_map_universe(isl_union_map_copy(umap));
2359 ran = isl_union_map_range(univ);
2361 in = union_map_forall_user(ran, &plain_injective_on_range_wrap, umap);
2363 isl_union_set_free(ran);
2368 int isl_union_map_is_bijective(__isl_keep isl_union_map *umap)
2372 sv = isl_union_map_is_single_valued(umap);
2376 return isl_union_map_is_injective(umap);
2379 static int zip_entry(void **entry, void *user)
2381 isl_map *map = *entry;
2382 isl_union_map **res = user;
2384 if (!isl_map_can_zip(map))
2387 *res = isl_union_map_add_map(*res, isl_map_zip(isl_map_copy(map)));
2392 __isl_give isl_union_map *isl_union_map_zip(__isl_take isl_union_map *umap)
2394 return cond_un_op(umap, &zip_entry);
2397 static int uncurry_entry(void **entry, void *user)
2399 isl_map *map = *entry;
2400 isl_union_map **res = user;
2402 if (!isl_map_can_uncurry(map))
2405 *res = isl_union_map_add_map(*res, isl_map_uncurry(isl_map_copy(map)));
2410 /* Given a union map, take the maps of the form A -> (B -> C) and
2411 * return the union of the corresponding maps (A -> B) -> C.
2413 __isl_give isl_union_map *isl_union_map_uncurry(__isl_take isl_union_map *umap)
2415 return cond_un_op(umap, &uncurry_entry);
2418 static int curry_entry(void **entry, void *user)
2420 isl_map *map = *entry;
2421 isl_union_map **res = user;
2423 if (!isl_map_can_curry(map))
2426 *res = isl_union_map_add_map(*res, isl_map_curry(isl_map_copy(map)));
2431 /* Given a union map, take the maps of the form (A -> B) -> C and
2432 * return the union of the corresponding maps A -> (B -> C).
2434 __isl_give isl_union_map *isl_union_map_curry(__isl_take isl_union_map *umap)
2436 return cond_un_op(umap, &curry_entry);
2439 static int lift_entry(void **entry, void *user)
2441 isl_set *set = *entry;
2442 isl_union_set **res = user;
2444 *res = isl_union_set_add_set(*res, isl_set_lift(isl_set_copy(set)));
2449 __isl_give isl_union_set *isl_union_set_lift(__isl_take isl_union_set *uset)
2451 return cond_un_op(uset, &lift_entry);
2454 static int coefficients_entry(void **entry, void *user)
2456 isl_set *set = *entry;
2457 isl_union_set **res = user;
2459 set = isl_set_copy(set);
2460 set = isl_set_from_basic_set(isl_set_coefficients(set));
2461 *res = isl_union_set_add_set(*res, set);
2466 __isl_give isl_union_set *isl_union_set_coefficients(
2467 __isl_take isl_union_set *uset)
2476 ctx = isl_union_set_get_ctx(uset);
2477 dim = isl_space_set_alloc(ctx, 0, 0);
2478 res = isl_union_map_alloc(dim, uset->table.n);
2479 if (isl_hash_table_foreach(uset->dim->ctx, &uset->table,
2480 &coefficients_entry, &res) < 0)
2483 isl_union_set_free(uset);
2486 isl_union_set_free(uset);
2487 isl_union_set_free(res);
2491 static int solutions_entry(void **entry, void *user)
2493 isl_set *set = *entry;
2494 isl_union_set **res = user;
2496 set = isl_set_copy(set);
2497 set = isl_set_from_basic_set(isl_set_solutions(set));
2499 *res = isl_union_set_from_set(set);
2501 *res = isl_union_set_add_set(*res, set);
2509 __isl_give isl_union_set *isl_union_set_solutions(
2510 __isl_take isl_union_set *uset)
2512 isl_union_set *res = NULL;
2517 if (uset->table.n == 0) {
2518 res = isl_union_set_empty(isl_union_set_get_space(uset));
2519 isl_union_set_free(uset);
2523 if (isl_hash_table_foreach(uset->dim->ctx, &uset->table,
2524 &solutions_entry, &res) < 0)
2527 isl_union_set_free(uset);
2530 isl_union_set_free(uset);
2531 isl_union_set_free(res);