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>
18 #include <isl_space_private.h>
19 #include <isl_union_map_private.h>
20 #include <isl/union_set.h>
22 /* Is this union set a parameter domain?
24 int isl_union_set_is_params(__isl_keep isl_union_set *uset)
31 if (uset->table.n != 1)
34 set = isl_set_from_union_set(isl_union_set_copy(uset));
35 params = isl_set_is_params(set);
40 static __isl_give isl_union_map *isl_union_map_alloc(__isl_take isl_space *dim,
45 dim = isl_space_params(dim);
49 umap = isl_calloc_type(dim->ctx, isl_union_map);
55 if (isl_hash_table_init(dim->ctx, &umap->table, size) < 0)
56 return isl_union_map_free(umap);
61 __isl_give isl_union_map *isl_union_map_empty(__isl_take isl_space *dim)
63 return isl_union_map_alloc(dim, 16);
66 __isl_give isl_union_set *isl_union_set_empty(__isl_take isl_space *dim)
68 return isl_union_map_empty(dim);
71 isl_ctx *isl_union_map_get_ctx(__isl_keep isl_union_map *umap)
73 return umap ? umap->dim->ctx : NULL;
76 isl_ctx *isl_union_set_get_ctx(__isl_keep isl_union_set *uset)
78 return uset ? uset->dim->ctx : NULL;
81 __isl_give isl_space *isl_union_map_get_space(__isl_keep isl_union_map *umap)
85 return isl_space_copy(umap->dim);
88 __isl_give isl_space *isl_union_set_get_space(__isl_keep isl_union_set *uset)
90 return isl_union_map_get_space(uset);
93 static int free_umap_entry(void **entry, void *user)
95 isl_map *map = *entry;
100 static int add_map(__isl_take isl_map *map, void *user)
102 isl_union_map **umap = (isl_union_map **)user;
104 *umap = isl_union_map_add_map(*umap, map);
109 __isl_give isl_union_map *isl_union_map_dup(__isl_keep isl_union_map *umap)
116 dup = isl_union_map_empty(isl_space_copy(umap->dim));
117 if (isl_union_map_foreach_map(umap, &add_map, &dup) < 0)
121 isl_union_map_free(dup);
125 __isl_give isl_union_map *isl_union_map_cow(__isl_take isl_union_map *umap)
133 return isl_union_map_dup(umap);
136 struct isl_union_align {
141 static int align_entry(void **entry, void *user)
143 isl_map *map = *entry;
145 struct isl_union_align *data = user;
147 exp = isl_reordering_extend_space(isl_reordering_copy(data->exp),
148 isl_map_get_space(map));
150 data->res = isl_union_map_add_map(data->res,
151 isl_map_realign(isl_map_copy(map), exp));
156 /* Align the parameters of umap along those of model.
157 * The result has the parameters of model first, in the same order
158 * as they appear in model, followed by any remaining parameters of
159 * umap that do not appear in model.
161 __isl_give isl_union_map *isl_union_map_align_params(
162 __isl_take isl_union_map *umap, __isl_take isl_space *model)
164 struct isl_union_align data = { NULL, NULL };
169 if (isl_space_match(umap->dim, isl_dim_param, model, isl_dim_param)) {
170 isl_space_free(model);
174 model = isl_space_params(model);
175 data.exp = isl_parameter_alignment_reordering(umap->dim, model);
179 data.res = isl_union_map_alloc(isl_space_copy(data.exp->dim),
181 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
182 &align_entry, &data) < 0)
185 isl_reordering_free(data.exp);
186 isl_union_map_free(umap);
187 isl_space_free(model);
190 isl_reordering_free(data.exp);
191 isl_union_map_free(umap);
192 isl_union_map_free(data.res);
193 isl_space_free(model);
197 __isl_give isl_union_set *isl_union_set_align_params(
198 __isl_take isl_union_set *uset, __isl_take isl_space *model)
200 return isl_union_map_align_params(uset, model);
203 __isl_give isl_union_map *isl_union_map_union(__isl_take isl_union_map *umap1,
204 __isl_take isl_union_map *umap2)
206 umap1 = isl_union_map_align_params(umap1, isl_union_map_get_space(umap2));
207 umap2 = isl_union_map_align_params(umap2, isl_union_map_get_space(umap1));
209 umap1 = isl_union_map_cow(umap1);
211 if (!umap1 || !umap2)
214 if (isl_union_map_foreach_map(umap2, &add_map, &umap1) < 0)
217 isl_union_map_free(umap2);
221 isl_union_map_free(umap1);
222 isl_union_map_free(umap2);
226 __isl_give isl_union_set *isl_union_set_union(__isl_take isl_union_set *uset1,
227 __isl_take isl_union_set *uset2)
229 return isl_union_map_union(uset1, uset2);
232 __isl_give isl_union_map *isl_union_map_copy(__isl_keep isl_union_map *umap)
241 __isl_give isl_union_set *isl_union_set_copy(__isl_keep isl_union_set *uset)
243 return isl_union_map_copy(uset);
246 void *isl_union_map_free(__isl_take isl_union_map *umap)
254 isl_hash_table_foreach(umap->dim->ctx, &umap->table,
255 &free_umap_entry, NULL);
256 isl_hash_table_clear(&umap->table);
257 isl_space_free(umap->dim);
262 void *isl_union_set_free(__isl_take isl_union_set *uset)
264 return isl_union_map_free(uset);
267 static int has_dim(const void *entry, const void *val)
269 isl_map *map = (isl_map *)entry;
270 isl_space *dim = (isl_space *)val;
272 return isl_space_is_equal(map->dim, dim);
275 __isl_give isl_union_map *isl_union_map_add_map(__isl_take isl_union_map *umap,
276 __isl_take isl_map *map)
279 struct isl_hash_table_entry *entry;
284 if (isl_map_plain_is_empty(map)) {
289 if (!isl_space_match(map->dim, isl_dim_param, umap->dim, isl_dim_param)) {
290 umap = isl_union_map_align_params(umap, isl_map_get_space(map));
291 map = isl_map_align_params(map, isl_union_map_get_space(umap));
294 umap = isl_union_map_cow(umap);
299 hash = isl_space_get_hash(map->dim);
300 entry = isl_hash_table_find(umap->dim->ctx, &umap->table, hash,
301 &has_dim, map->dim, 1);
308 entry->data = isl_map_union(entry->data, isl_map_copy(map));
317 isl_union_map_free(umap);
321 __isl_give isl_union_set *isl_union_set_add_set(__isl_take isl_union_set *uset,
322 __isl_take isl_set *set)
324 return isl_union_map_add_map(uset, (isl_map *)set);
327 __isl_give isl_union_map *isl_union_map_from_map(__isl_take isl_map *map)
335 dim = isl_map_get_space(map);
336 dim = isl_space_params(dim);
337 umap = isl_union_map_empty(dim);
338 umap = isl_union_map_add_map(umap, map);
343 __isl_give isl_union_set *isl_union_set_from_set(__isl_take isl_set *set)
345 return isl_union_map_from_map((isl_map *)set);
348 __isl_give isl_union_map *isl_union_map_from_basic_map(
349 __isl_take isl_basic_map *bmap)
351 return isl_union_map_from_map(isl_map_from_basic_map(bmap));
354 __isl_give isl_union_set *isl_union_set_from_basic_set(
355 __isl_take isl_basic_set *bset)
357 return isl_union_map_from_basic_map(bset);
360 struct isl_union_map_foreach_data
362 int (*fn)(__isl_take isl_map *map, void *user);
366 static int call_on_copy(void **entry, void *user)
368 isl_map *map = *entry;
369 struct isl_union_map_foreach_data *data;
370 data = (struct isl_union_map_foreach_data *)user;
372 return data->fn(isl_map_copy(map), data->user);
375 int isl_union_map_n_map(__isl_keep isl_union_map *umap)
377 return umap ? umap->table.n : 0;
380 int isl_union_set_n_set(__isl_keep isl_union_set *uset)
382 return uset ? uset->table.n : 0;
385 int isl_union_map_foreach_map(__isl_keep isl_union_map *umap,
386 int (*fn)(__isl_take isl_map *map, void *user), void *user)
388 struct isl_union_map_foreach_data data = { fn, user };
393 return isl_hash_table_foreach(umap->dim->ctx, &umap->table,
394 &call_on_copy, &data);
397 static int copy_map(void **entry, void *user)
399 isl_map *map = *entry;
400 isl_map **map_p = user;
402 *map_p = isl_map_copy(map);
407 __isl_give isl_map *isl_map_from_union_map(__isl_take isl_union_map *umap)
414 ctx = isl_union_map_get_ctx(umap);
415 if (umap->table.n != 1)
416 isl_die(ctx, isl_error_invalid,
417 "union map needs to contain elements in exactly "
418 "one space", return isl_union_map_free(umap));
420 isl_hash_table_foreach(ctx, &umap->table, ©_map, &map);
422 isl_union_map_free(umap);
427 __isl_give isl_set *isl_set_from_union_set(__isl_take isl_union_set *uset)
429 return isl_map_from_union_map(uset);
432 /* Extract the map in "umap" that lives in the given space (ignoring
435 __isl_give isl_map *isl_union_map_extract_map(__isl_keep isl_union_map *umap,
436 __isl_take isl_space *space)
439 struct isl_hash_table_entry *entry;
441 space = isl_space_drop_dims(space, isl_dim_param,
442 0, isl_space_dim(space, isl_dim_param));
443 space = isl_space_align_params(space, isl_union_map_get_space(umap));
447 hash = isl_space_get_hash(space);
448 entry = isl_hash_table_find(umap->dim->ctx, &umap->table, hash,
451 return isl_map_empty(space);
452 isl_space_free(space);
453 return isl_map_copy(entry->data);
455 isl_space_free(space);
459 __isl_give isl_set *isl_union_set_extract_set(__isl_keep isl_union_set *uset,
460 __isl_take isl_space *dim)
462 return (isl_set *)isl_union_map_extract_map(uset, dim);
465 /* Check if umap contains a map in the given space.
467 __isl_give int isl_union_map_contains(__isl_keep isl_union_map *umap,
468 __isl_keep isl_space *dim)
471 struct isl_hash_table_entry *entry;
476 hash = isl_space_get_hash(dim);
477 entry = isl_hash_table_find(umap->dim->ctx, &umap->table, hash,
482 __isl_give int isl_union_set_contains(__isl_keep isl_union_set *uset,
483 __isl_keep isl_space *dim)
485 return isl_union_map_contains(uset, dim);
488 int isl_union_set_foreach_set(__isl_keep isl_union_set *uset,
489 int (*fn)(__isl_take isl_set *set, void *user), void *user)
491 return isl_union_map_foreach_map(uset,
492 (int(*)(__isl_take isl_map *, void*))fn, user);
495 struct isl_union_set_foreach_point_data {
496 int (*fn)(__isl_take isl_point *pnt, void *user);
500 static int foreach_point(__isl_take isl_set *set, void *user)
502 struct isl_union_set_foreach_point_data *data = user;
505 r = isl_set_foreach_point(set, data->fn, data->user);
511 int isl_union_set_foreach_point(__isl_keep isl_union_set *uset,
512 int (*fn)(__isl_take isl_point *pnt, void *user), void *user)
514 struct isl_union_set_foreach_point_data data = { fn, user };
515 return isl_union_set_foreach_set(uset, &foreach_point, &data);
518 struct isl_union_map_gen_bin_data {
519 isl_union_map *umap2;
523 static int subtract_entry(void **entry, void *user)
525 struct isl_union_map_gen_bin_data *data = user;
527 struct isl_hash_table_entry *entry2;
528 isl_map *map = *entry;
530 hash = isl_space_get_hash(map->dim);
531 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
532 hash, &has_dim, map->dim, 0);
533 map = isl_map_copy(map);
536 map = isl_map_subtract(map, isl_map_copy(entry2->data));
538 empty = isl_map_is_empty(map);
548 data->res = isl_union_map_add_map(data->res, map);
553 static __isl_give isl_union_map *gen_bin_op(__isl_take isl_union_map *umap1,
554 __isl_take isl_union_map *umap2, int (*fn)(void **, void *))
556 struct isl_union_map_gen_bin_data data = { NULL, NULL };
558 umap1 = isl_union_map_align_params(umap1, isl_union_map_get_space(umap2));
559 umap2 = isl_union_map_align_params(umap2, isl_union_map_get_space(umap1));
561 if (!umap1 || !umap2)
565 data.res = isl_union_map_alloc(isl_space_copy(umap1->dim),
567 if (isl_hash_table_foreach(umap1->dim->ctx, &umap1->table,
571 isl_union_map_free(umap1);
572 isl_union_map_free(umap2);
575 isl_union_map_free(umap1);
576 isl_union_map_free(umap2);
577 isl_union_map_free(data.res);
581 __isl_give isl_union_map *isl_union_map_subtract(
582 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
584 return gen_bin_op(umap1, umap2, &subtract_entry);
587 __isl_give isl_union_set *isl_union_set_subtract(
588 __isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
590 return isl_union_map_subtract(uset1, uset2);
593 struct isl_union_map_gen_bin_set_data {
598 static int intersect_params_entry(void **entry, void *user)
600 struct isl_union_map_gen_bin_set_data *data = user;
601 isl_map *map = *entry;
604 map = isl_map_copy(map);
605 map = isl_map_intersect_params(map, isl_set_copy(data->set));
607 empty = isl_map_is_empty(map);
613 data->res = isl_union_map_add_map(data->res, map);
618 static __isl_give isl_union_map *gen_bin_set_op(__isl_take isl_union_map *umap,
619 __isl_take isl_set *set, int (*fn)(void **, void *))
621 struct isl_union_map_gen_bin_set_data data = { NULL, NULL };
623 umap = isl_union_map_align_params(umap, isl_set_get_space(set));
624 set = isl_set_align_params(set, isl_union_map_get_space(umap));
630 data.res = isl_union_map_alloc(isl_space_copy(umap->dim),
632 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
636 isl_union_map_free(umap);
640 isl_union_map_free(umap);
642 isl_union_map_free(data.res);
646 __isl_give isl_union_map *isl_union_map_intersect_params(
647 __isl_take isl_union_map *umap, __isl_take isl_set *set)
649 return gen_bin_set_op(umap, set, &intersect_params_entry);
652 __isl_give isl_union_set *isl_union_set_intersect_params(
653 __isl_take isl_union_set *uset, __isl_take isl_set *set)
655 return isl_union_map_intersect_params(uset, set);
658 static __isl_give isl_union_map *union_map_intersect_params(
659 __isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
661 return isl_union_map_intersect_params(umap,
662 isl_set_from_union_set(uset));
665 static __isl_give isl_union_map *union_map_gist_params(
666 __isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
668 return isl_union_map_gist_params(umap, isl_set_from_union_set(uset));
671 struct isl_union_map_match_bin_data {
672 isl_union_map *umap2;
674 __isl_give isl_map *(*fn)(__isl_take isl_map*, __isl_take isl_map*);
677 static int match_bin_entry(void **entry, void *user)
679 struct isl_union_map_match_bin_data *data = user;
681 struct isl_hash_table_entry *entry2;
682 isl_map *map = *entry;
685 hash = isl_space_get_hash(map->dim);
686 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
687 hash, &has_dim, map->dim, 0);
691 map = isl_map_copy(map);
692 map = data->fn(map, isl_map_copy(entry2->data));
694 empty = isl_map_is_empty(map);
704 data->res = isl_union_map_add_map(data->res, map);
709 static __isl_give isl_union_map *match_bin_op(__isl_take isl_union_map *umap1,
710 __isl_take isl_union_map *umap2,
711 __isl_give isl_map *(*fn)(__isl_take isl_map*, __isl_take isl_map*))
713 struct isl_union_map_match_bin_data data = { NULL, NULL, fn };
715 umap1 = isl_union_map_align_params(umap1, isl_union_map_get_space(umap2));
716 umap2 = isl_union_map_align_params(umap2, isl_union_map_get_space(umap1));
718 if (!umap1 || !umap2)
722 data.res = isl_union_map_alloc(isl_space_copy(umap1->dim),
724 if (isl_hash_table_foreach(umap1->dim->ctx, &umap1->table,
725 &match_bin_entry, &data) < 0)
728 isl_union_map_free(umap1);
729 isl_union_map_free(umap2);
732 isl_union_map_free(umap1);
733 isl_union_map_free(umap2);
734 isl_union_map_free(data.res);
738 __isl_give isl_union_map *isl_union_map_intersect(
739 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
741 return match_bin_op(umap1, umap2, &isl_map_intersect);
744 /* Compute the intersection of the two union_sets.
745 * As a special case, if exactly one of the two union_sets
746 * is a parameter domain, then intersect the parameter domain
747 * of the other one with this set.
749 __isl_give isl_union_set *isl_union_set_intersect(
750 __isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
754 p1 = isl_union_set_is_params(uset1);
755 p2 = isl_union_set_is_params(uset2);
756 if (p1 < 0 || p2 < 0)
759 return union_map_intersect_params(uset1, uset2);
761 return union_map_intersect_params(uset2, uset1);
762 return isl_union_map_intersect(uset1, uset2);
764 isl_union_set_free(uset1);
765 isl_union_set_free(uset2);
769 static int gist_params_entry(void **entry, void *user)
771 struct isl_union_map_gen_bin_set_data *data = user;
772 isl_map *map = *entry;
775 map = isl_map_copy(map);
776 map = isl_map_gist_params(map, isl_set_copy(data->set));
778 empty = isl_map_is_empty(map);
784 data->res = isl_union_map_add_map(data->res, map);
789 __isl_give isl_union_map *isl_union_map_gist_params(
790 __isl_take isl_union_map *umap, __isl_take isl_set *set)
792 return gen_bin_set_op(umap, set, &gist_params_entry);
795 __isl_give isl_union_set *isl_union_set_gist_params(
796 __isl_take isl_union_set *uset, __isl_take isl_set *set)
798 return isl_union_map_gist_params(uset, set);
801 __isl_give isl_union_map *isl_union_map_gist(__isl_take isl_union_map *umap,
802 __isl_take isl_union_map *context)
804 return match_bin_op(umap, context, &isl_map_gist);
807 __isl_give isl_union_set *isl_union_set_gist(__isl_take isl_union_set *uset,
808 __isl_take isl_union_set *context)
810 if (isl_union_set_is_params(context))
811 return union_map_gist_params(uset, context);
812 return isl_union_map_gist(uset, context);
815 static __isl_give isl_map *lex_le_set(__isl_take isl_map *set1,
816 __isl_take isl_map *set2)
818 return isl_set_lex_le_set((isl_set *)set1, (isl_set *)set2);
821 static __isl_give isl_map *lex_lt_set(__isl_take isl_map *set1,
822 __isl_take isl_map *set2)
824 return isl_set_lex_lt_set((isl_set *)set1, (isl_set *)set2);
827 __isl_give isl_union_map *isl_union_set_lex_lt_union_set(
828 __isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
830 return match_bin_op(uset1, uset2, &lex_lt_set);
833 __isl_give isl_union_map *isl_union_set_lex_le_union_set(
834 __isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
836 return match_bin_op(uset1, uset2, &lex_le_set);
839 __isl_give isl_union_map *isl_union_set_lex_gt_union_set(
840 __isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
842 return isl_union_map_reverse(isl_union_set_lex_lt_union_set(uset2, uset1));
845 __isl_give isl_union_map *isl_union_set_lex_ge_union_set(
846 __isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
848 return isl_union_map_reverse(isl_union_set_lex_le_union_set(uset2, uset1));
851 __isl_give isl_union_map *isl_union_map_lex_gt_union_map(
852 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
854 return isl_union_map_reverse(isl_union_map_lex_lt_union_map(umap2, umap1));
857 __isl_give isl_union_map *isl_union_map_lex_ge_union_map(
858 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
860 return isl_union_map_reverse(isl_union_map_lex_le_union_map(umap2, umap1));
863 static int intersect_domain_entry(void **entry, void *user)
865 struct isl_union_map_gen_bin_data *data = user;
867 struct isl_hash_table_entry *entry2;
869 isl_map *map = *entry;
872 dim = isl_map_get_space(map);
873 dim = isl_space_domain(dim);
874 hash = isl_space_get_hash(dim);
875 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
876 hash, &has_dim, dim, 0);
881 map = isl_map_copy(map);
882 map = isl_map_intersect_domain(map, isl_set_copy(entry2->data));
884 empty = isl_map_is_empty(map);
894 data->res = isl_union_map_add_map(data->res, map);
899 /* Intersect the domain of "umap" with "uset".
900 * If "uset" is a parameters domain, then intersect the parameter
901 * domain of "umap" with this set.
903 __isl_give isl_union_map *isl_union_map_intersect_domain(
904 __isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
906 if (isl_union_set_is_params(uset))
907 return union_map_intersect_params(umap, uset);
908 return gen_bin_op(umap, uset, &intersect_domain_entry);
911 /* Remove the elements of data->umap2 from the domain of *entry
912 * and add the result to data->res.
914 static int subtract_domain_entry(void **entry, void *user)
916 struct isl_union_map_gen_bin_data *data = user;
918 struct isl_hash_table_entry *entry2;
920 isl_map *map = *entry;
923 dim = isl_map_get_space(map);
924 dim = isl_space_domain(dim);
925 hash = isl_space_get_hash(dim);
926 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
927 hash, &has_dim, dim, 0);
930 map = isl_map_copy(map);
933 data->res = isl_union_map_add_map(data->res, map);
937 map = isl_map_subtract_domain(map, isl_set_copy(entry2->data));
939 empty = isl_map_is_empty(map);
949 data->res = isl_union_map_add_map(data->res, map);
954 /* Remove the elements of "uset" from the domain of "umap".
956 __isl_give isl_union_map *isl_union_map_subtract_domain(
957 __isl_take isl_union_map *umap, __isl_take isl_union_set *dom)
959 return gen_bin_op(umap, dom, &subtract_domain_entry);
962 /* Remove the elements of data->umap2 from the range of *entry
963 * and add the result to data->res.
965 static int subtract_range_entry(void **entry, void *user)
967 struct isl_union_map_gen_bin_data *data = user;
969 struct isl_hash_table_entry *entry2;
971 isl_map *map = *entry;
974 space = isl_map_get_space(map);
975 space = isl_space_range(space);
976 hash = isl_space_get_hash(space);
977 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
978 hash, &has_dim, space, 0);
979 isl_space_free(space);
981 map = isl_map_copy(map);
984 data->res = isl_union_map_add_map(data->res, map);
988 map = isl_map_subtract_range(map, isl_set_copy(entry2->data));
990 empty = isl_map_is_empty(map);
1000 data->res = isl_union_map_add_map(data->res, map);
1005 /* Remove the elements of "uset" from the range of "umap".
1007 __isl_give isl_union_map *isl_union_map_subtract_range(
1008 __isl_take isl_union_map *umap, __isl_take isl_union_set *dom)
1010 return gen_bin_op(umap, dom, &subtract_range_entry);
1013 static int gist_domain_entry(void **entry, void *user)
1015 struct isl_union_map_gen_bin_data *data = user;
1017 struct isl_hash_table_entry *entry2;
1019 isl_map *map = *entry;
1022 dim = isl_map_get_space(map);
1023 dim = isl_space_domain(dim);
1024 hash = isl_space_get_hash(dim);
1025 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
1026 hash, &has_dim, dim, 0);
1027 isl_space_free(dim);
1031 map = isl_map_copy(map);
1032 map = isl_map_gist_domain(map, isl_set_copy(entry2->data));
1034 empty = isl_map_is_empty(map);
1040 data->res = isl_union_map_add_map(data->res, map);
1045 /* Compute the gist of "umap" with respect to the domain "uset".
1046 * If "uset" is a parameters domain, then compute the gist
1047 * with respect to this parameter domain.
1049 __isl_give isl_union_map *isl_union_map_gist_domain(
1050 __isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
1052 if (isl_union_set_is_params(uset))
1053 return union_map_gist_params(umap, uset);
1054 return gen_bin_op(umap, uset, &gist_domain_entry);
1057 static int gist_range_entry(void **entry, void *user)
1059 struct isl_union_map_gen_bin_data *data = user;
1061 struct isl_hash_table_entry *entry2;
1063 isl_map *map = *entry;
1066 space = isl_map_get_space(map);
1067 space = isl_space_range(space);
1068 hash = isl_space_get_hash(space);
1069 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
1070 hash, &has_dim, space, 0);
1071 isl_space_free(space);
1075 map = isl_map_copy(map);
1076 map = isl_map_gist_range(map, isl_set_copy(entry2->data));
1078 empty = isl_map_is_empty(map);
1084 data->res = isl_union_map_add_map(data->res, map);
1089 /* Compute the gist of "umap" with respect to the range "uset".
1091 __isl_give isl_union_map *isl_union_map_gist_range(
1092 __isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
1094 return gen_bin_op(umap, uset, &gist_range_entry);
1097 static int intersect_range_entry(void **entry, void *user)
1099 struct isl_union_map_gen_bin_data *data = user;
1101 struct isl_hash_table_entry *entry2;
1103 isl_map *map = *entry;
1106 dim = isl_map_get_space(map);
1107 dim = isl_space_range(dim);
1108 hash = isl_space_get_hash(dim);
1109 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
1110 hash, &has_dim, dim, 0);
1111 isl_space_free(dim);
1115 map = isl_map_copy(map);
1116 map = isl_map_intersect_range(map, isl_set_copy(entry2->data));
1118 empty = isl_map_is_empty(map);
1128 data->res = isl_union_map_add_map(data->res, map);
1133 __isl_give isl_union_map *isl_union_map_intersect_range(
1134 __isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
1136 return gen_bin_op(umap, uset, &intersect_range_entry);
1139 struct isl_union_map_bin_data {
1140 isl_union_map *umap2;
1143 int (*fn)(void **entry, void *user);
1146 static int apply_range_entry(void **entry, void *user)
1148 struct isl_union_map_bin_data *data = user;
1149 isl_map *map2 = *entry;
1152 if (!isl_space_tuple_match(data->map->dim, isl_dim_out,
1153 map2->dim, isl_dim_in))
1156 map2 = isl_map_apply_range(isl_map_copy(data->map), isl_map_copy(map2));
1158 empty = isl_map_is_empty(map2);
1168 data->res = isl_union_map_add_map(data->res, map2);
1173 static int bin_entry(void **entry, void *user)
1175 struct isl_union_map_bin_data *data = user;
1176 isl_map *map = *entry;
1179 if (isl_hash_table_foreach(data->umap2->dim->ctx, &data->umap2->table,
1180 data->fn, data) < 0)
1186 static __isl_give isl_union_map *bin_op(__isl_take isl_union_map *umap1,
1187 __isl_take isl_union_map *umap2, int (*fn)(void **entry, void *user))
1189 struct isl_union_map_bin_data data = { NULL, NULL, NULL, fn };
1191 umap1 = isl_union_map_align_params(umap1, isl_union_map_get_space(umap2));
1192 umap2 = isl_union_map_align_params(umap2, isl_union_map_get_space(umap1));
1194 if (!umap1 || !umap2)
1198 data.res = isl_union_map_alloc(isl_space_copy(umap1->dim),
1200 if (isl_hash_table_foreach(umap1->dim->ctx, &umap1->table,
1201 &bin_entry, &data) < 0)
1204 isl_union_map_free(umap1);
1205 isl_union_map_free(umap2);
1208 isl_union_map_free(umap1);
1209 isl_union_map_free(umap2);
1210 isl_union_map_free(data.res);
1214 __isl_give isl_union_map *isl_union_map_apply_range(
1215 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
1217 return bin_op(umap1, umap2, &apply_range_entry);
1220 __isl_give isl_union_map *isl_union_map_apply_domain(
1221 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
1223 umap1 = isl_union_map_reverse(umap1);
1224 umap1 = isl_union_map_apply_range(umap1, umap2);
1225 return isl_union_map_reverse(umap1);
1228 __isl_give isl_union_set *isl_union_set_apply(
1229 __isl_take isl_union_set *uset, __isl_take isl_union_map *umap)
1231 return isl_union_map_apply_range(uset, umap);
1234 static int map_lex_lt_entry(void **entry, void *user)
1236 struct isl_union_map_bin_data *data = user;
1237 isl_map *map2 = *entry;
1239 if (!isl_space_tuple_match(data->map->dim, isl_dim_out,
1240 map2->dim, isl_dim_out))
1243 map2 = isl_map_lex_lt_map(isl_map_copy(data->map), isl_map_copy(map2));
1245 data->res = isl_union_map_add_map(data->res, map2);
1250 __isl_give isl_union_map *isl_union_map_lex_lt_union_map(
1251 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
1253 return bin_op(umap1, umap2, &map_lex_lt_entry);
1256 static int map_lex_le_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_out,
1262 map2->dim, isl_dim_out))
1265 map2 = isl_map_lex_le_map(isl_map_copy(data->map), isl_map_copy(map2));
1267 data->res = isl_union_map_add_map(data->res, map2);
1272 __isl_give isl_union_map *isl_union_map_lex_le_union_map(
1273 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
1275 return bin_op(umap1, umap2, &map_lex_le_entry);
1278 static int product_entry(void **entry, void *user)
1280 struct isl_union_map_bin_data *data = user;
1281 isl_map *map2 = *entry;
1283 map2 = isl_map_product(isl_map_copy(data->map), isl_map_copy(map2));
1285 data->res = isl_union_map_add_map(data->res, map2);
1290 __isl_give isl_union_map *isl_union_map_product(__isl_take isl_union_map *umap1,
1291 __isl_take isl_union_map *umap2)
1293 return bin_op(umap1, umap2, &product_entry);
1296 static int set_product_entry(void **entry, void *user)
1298 struct isl_union_map_bin_data *data = user;
1299 isl_set *set2 = *entry;
1301 set2 = isl_set_product(isl_set_copy(data->map), isl_set_copy(set2));
1303 data->res = isl_union_set_add_set(data->res, set2);
1308 __isl_give isl_union_set *isl_union_set_product(__isl_take isl_union_set *uset1,
1309 __isl_take isl_union_set *uset2)
1311 return bin_op(uset1, uset2, &set_product_entry);
1314 static int domain_product_entry(void **entry, void *user)
1316 struct isl_union_map_bin_data *data = user;
1317 isl_map *map2 = *entry;
1319 if (!isl_space_tuple_match(data->map->dim, isl_dim_out,
1320 map2->dim, isl_dim_out))
1323 map2 = isl_map_domain_product(isl_map_copy(data->map),
1324 isl_map_copy(map2));
1326 data->res = isl_union_map_add_map(data->res, map2);
1331 /* Given two maps A -> B and C -> D, construct a map [A -> C] -> (B * D)
1333 __isl_give isl_union_map *isl_union_map_domain_product(
1334 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
1336 return bin_op(umap1, umap2, &domain_product_entry);
1339 static int range_product_entry(void **entry, void *user)
1341 struct isl_union_map_bin_data *data = user;
1342 isl_map *map2 = *entry;
1344 if (!isl_space_tuple_match(data->map->dim, isl_dim_in,
1345 map2->dim, isl_dim_in))
1348 map2 = isl_map_range_product(isl_map_copy(data->map),
1349 isl_map_copy(map2));
1351 data->res = isl_union_map_add_map(data->res, map2);
1356 __isl_give isl_union_map *isl_union_map_range_product(
1357 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
1359 return bin_op(umap1, umap2, &range_product_entry);
1362 static int flat_range_product_entry(void **entry, void *user)
1364 struct isl_union_map_bin_data *data = user;
1365 isl_map *map2 = *entry;
1367 if (!isl_space_tuple_match(data->map->dim, isl_dim_in,
1368 map2->dim, isl_dim_in))
1371 map2 = isl_map_flat_range_product(isl_map_copy(data->map),
1372 isl_map_copy(map2));
1374 data->res = isl_union_map_add_map(data->res, map2);
1379 __isl_give isl_union_map *isl_union_map_flat_range_product(
1380 __isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
1382 return bin_op(umap1, umap2, &flat_range_product_entry);
1385 static __isl_give isl_union_set *cond_un_op(__isl_take isl_union_map *umap,
1386 int (*fn)(void **, void *))
1393 res = isl_union_map_alloc(isl_space_copy(umap->dim), umap->table.n);
1394 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table, fn, &res) < 0)
1397 isl_union_map_free(umap);
1400 isl_union_map_free(umap);
1401 isl_union_set_free(res);
1405 static int from_range_entry(void **entry, void *user)
1407 isl_map *set = *entry;
1408 isl_union_set **res = user;
1410 *res = isl_union_map_add_map(*res,
1411 isl_map_from_range(isl_set_copy(set)));
1416 __isl_give isl_union_map *isl_union_map_from_range(
1417 __isl_take isl_union_set *uset)
1419 return cond_un_op(uset, &from_range_entry);
1422 __isl_give isl_union_map *isl_union_map_from_domain(
1423 __isl_take isl_union_set *uset)
1425 return isl_union_map_reverse(isl_union_map_from_range(uset));
1428 __isl_give isl_union_map *isl_union_map_from_domain_and_range(
1429 __isl_take isl_union_set *domain, __isl_take isl_union_set *range)
1431 return isl_union_map_apply_range(isl_union_map_from_domain(domain),
1432 isl_union_map_from_range(range));
1435 static __isl_give isl_union_map *un_op(__isl_take isl_union_map *umap,
1436 int (*fn)(void **, void *))
1438 umap = isl_union_map_cow(umap);
1442 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table, fn, NULL) < 0)
1447 isl_union_map_free(umap);
1451 static int affine_entry(void **entry, void *user)
1453 isl_map **map = (isl_map **)entry;
1455 *map = isl_map_from_basic_map(isl_map_affine_hull(*map));
1457 return *map ? 0 : -1;
1460 __isl_give isl_union_map *isl_union_map_affine_hull(
1461 __isl_take isl_union_map *umap)
1463 return un_op(umap, &affine_entry);
1466 __isl_give isl_union_set *isl_union_set_affine_hull(
1467 __isl_take isl_union_set *uset)
1469 return isl_union_map_affine_hull(uset);
1472 static int polyhedral_entry(void **entry, void *user)
1474 isl_map **map = (isl_map **)entry;
1476 *map = isl_map_from_basic_map(isl_map_polyhedral_hull(*map));
1478 return *map ? 0 : -1;
1481 __isl_give isl_union_map *isl_union_map_polyhedral_hull(
1482 __isl_take isl_union_map *umap)
1484 return un_op(umap, &polyhedral_entry);
1487 __isl_give isl_union_set *isl_union_set_polyhedral_hull(
1488 __isl_take isl_union_set *uset)
1490 return isl_union_map_polyhedral_hull(uset);
1493 static int simple_entry(void **entry, void *user)
1495 isl_map **map = (isl_map **)entry;
1497 *map = isl_map_from_basic_map(isl_map_simple_hull(*map));
1499 return *map ? 0 : -1;
1502 __isl_give isl_union_map *isl_union_map_simple_hull(
1503 __isl_take isl_union_map *umap)
1505 return un_op(umap, &simple_entry);
1508 __isl_give isl_union_set *isl_union_set_simple_hull(
1509 __isl_take isl_union_set *uset)
1511 return isl_union_map_simple_hull(uset);
1514 static int inplace_entry(void **entry, void *user)
1516 __isl_give isl_map *(*fn)(__isl_take isl_map *);
1517 isl_map **map = (isl_map **)entry;
1520 fn = *(__isl_give isl_map *(**)(__isl_take isl_map *)) user;
1521 copy = fn(isl_map_copy(*map));
1531 static __isl_give isl_union_map *inplace(__isl_take isl_union_map *umap,
1532 __isl_give isl_map *(*fn)(__isl_take isl_map *))
1537 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
1538 &inplace_entry, &fn) < 0)
1543 isl_union_map_free(umap);
1547 __isl_give isl_union_map *isl_union_map_coalesce(
1548 __isl_take isl_union_map *umap)
1550 return inplace(umap, &isl_map_coalesce);
1553 __isl_give isl_union_set *isl_union_set_coalesce(
1554 __isl_take isl_union_set *uset)
1556 return isl_union_map_coalesce(uset);
1559 __isl_give isl_union_map *isl_union_map_detect_equalities(
1560 __isl_take isl_union_map *umap)
1562 return inplace(umap, &isl_map_detect_equalities);
1565 __isl_give isl_union_set *isl_union_set_detect_equalities(
1566 __isl_take isl_union_set *uset)
1568 return isl_union_map_detect_equalities(uset);
1571 __isl_give isl_union_map *isl_union_map_compute_divs(
1572 __isl_take isl_union_map *umap)
1574 return inplace(umap, &isl_map_compute_divs);
1577 __isl_give isl_union_set *isl_union_set_compute_divs(
1578 __isl_take isl_union_set *uset)
1580 return isl_union_map_compute_divs(uset);
1583 static int lexmin_entry(void **entry, void *user)
1585 isl_map **map = (isl_map **)entry;
1587 *map = isl_map_lexmin(*map);
1589 return *map ? 0 : -1;
1592 __isl_give isl_union_map *isl_union_map_lexmin(
1593 __isl_take isl_union_map *umap)
1595 return un_op(umap, &lexmin_entry);
1598 __isl_give isl_union_set *isl_union_set_lexmin(
1599 __isl_take isl_union_set *uset)
1601 return isl_union_map_lexmin(uset);
1604 static int lexmax_entry(void **entry, void *user)
1606 isl_map **map = (isl_map **)entry;
1608 *map = isl_map_lexmax(*map);
1610 return *map ? 0 : -1;
1613 __isl_give isl_union_map *isl_union_map_lexmax(
1614 __isl_take isl_union_map *umap)
1616 return un_op(umap, &lexmax_entry);
1619 __isl_give isl_union_set *isl_union_set_lexmax(
1620 __isl_take isl_union_set *uset)
1622 return isl_union_map_lexmax(uset);
1625 static int universe_entry(void **entry, void *user)
1627 isl_map *map = *entry;
1628 isl_union_map **res = user;
1630 map = isl_map_universe(isl_map_get_space(map));
1631 *res = isl_union_map_add_map(*res, map);
1636 __isl_give isl_union_map *isl_union_map_universe(__isl_take isl_union_map *umap)
1638 return cond_un_op(umap, &universe_entry);
1641 __isl_give isl_union_set *isl_union_set_universe(__isl_take isl_union_set *uset)
1643 return isl_union_map_universe(uset);
1646 static int reverse_entry(void **entry, void *user)
1648 isl_map *map = *entry;
1649 isl_union_map **res = user;
1651 *res = isl_union_map_add_map(*res, isl_map_reverse(isl_map_copy(map)));
1656 __isl_give isl_union_map *isl_union_map_reverse(__isl_take isl_union_map *umap)
1658 return cond_un_op(umap, &reverse_entry);
1661 static int params_entry(void **entry, void *user)
1663 isl_map *map = *entry;
1664 isl_union_set **res = user;
1666 *res = isl_union_set_add_set(*res, isl_map_params(isl_map_copy(map)));
1671 /* Compute the parameter domain of the given union map.
1673 __isl_give isl_set *isl_union_map_params(__isl_take isl_union_map *umap)
1677 empty = isl_union_map_is_empty(umap);
1679 return isl_union_map_free(umap);
1681 return isl_set_empty(isl_union_map_get_space(umap));
1682 return isl_set_from_union_set(cond_un_op(umap, ¶ms_entry));
1685 /* Compute the parameter domain of the given union set.
1687 __isl_give isl_set *isl_union_set_params(__isl_take isl_union_set *uset)
1689 return isl_union_map_params(uset);
1692 static int domain_entry(void **entry, void *user)
1694 isl_map *map = *entry;
1695 isl_union_set **res = user;
1697 *res = isl_union_set_add_set(*res, isl_map_domain(isl_map_copy(map)));
1702 __isl_give isl_union_set *isl_union_map_domain(__isl_take isl_union_map *umap)
1704 return cond_un_op(umap, &domain_entry);
1707 static int range_entry(void **entry, void *user)
1709 isl_map *map = *entry;
1710 isl_union_set **res = user;
1712 *res = isl_union_set_add_set(*res, isl_map_range(isl_map_copy(map)));
1717 __isl_give isl_union_set *isl_union_map_range(__isl_take isl_union_map *umap)
1719 return cond_un_op(umap, &range_entry);
1722 static int domain_map_entry(void **entry, void *user)
1724 isl_map *map = *entry;
1725 isl_union_set **res = user;
1727 *res = isl_union_map_add_map(*res,
1728 isl_map_domain_map(isl_map_copy(map)));
1733 __isl_give isl_union_map *isl_union_map_domain_map(
1734 __isl_take isl_union_map *umap)
1736 return cond_un_op(umap, &domain_map_entry);
1739 static int range_map_entry(void **entry, void *user)
1741 isl_map *map = *entry;
1742 isl_union_set **res = user;
1744 *res = isl_union_map_add_map(*res,
1745 isl_map_range_map(isl_map_copy(map)));
1750 __isl_give isl_union_map *isl_union_map_range_map(
1751 __isl_take isl_union_map *umap)
1753 return cond_un_op(umap, &range_map_entry);
1756 static int deltas_entry(void **entry, void *user)
1758 isl_map *map = *entry;
1759 isl_union_set **res = user;
1761 if (!isl_space_tuple_match(map->dim, isl_dim_in, map->dim, isl_dim_out))
1764 *res = isl_union_set_add_set(*res, isl_map_deltas(isl_map_copy(map)));
1769 __isl_give isl_union_set *isl_union_map_deltas(__isl_take isl_union_map *umap)
1771 return cond_un_op(umap, &deltas_entry);
1774 static int deltas_map_entry(void **entry, void *user)
1776 isl_map *map = *entry;
1777 isl_union_map **res = user;
1779 if (!isl_space_tuple_match(map->dim, isl_dim_in, map->dim, isl_dim_out))
1782 *res = isl_union_map_add_map(*res,
1783 isl_map_deltas_map(isl_map_copy(map)));
1788 __isl_give isl_union_map *isl_union_map_deltas_map(
1789 __isl_take isl_union_map *umap)
1791 return cond_un_op(umap, &deltas_map_entry);
1794 static int identity_entry(void **entry, void *user)
1796 isl_set *set = *entry;
1797 isl_union_map **res = user;
1799 *res = isl_union_map_add_map(*res, isl_set_identity(isl_set_copy(set)));
1804 __isl_give isl_union_map *isl_union_set_identity(__isl_take isl_union_set *uset)
1806 return cond_un_op(uset, &identity_entry);
1809 static int unwrap_entry(void **entry, void *user)
1811 isl_set *set = *entry;
1812 isl_union_set **res = user;
1814 if (!isl_set_is_wrapping(set))
1817 *res = isl_union_map_add_map(*res, isl_set_unwrap(isl_set_copy(set)));
1822 __isl_give isl_union_map *isl_union_set_unwrap(__isl_take isl_union_set *uset)
1824 return cond_un_op(uset, &unwrap_entry);
1827 static int wrap_entry(void **entry, void *user)
1829 isl_map *map = *entry;
1830 isl_union_set **res = user;
1832 *res = isl_union_set_add_set(*res, isl_map_wrap(isl_map_copy(map)));
1837 __isl_give isl_union_set *isl_union_map_wrap(__isl_take isl_union_map *umap)
1839 return cond_un_op(umap, &wrap_entry);
1842 struct isl_union_map_is_subset_data {
1843 isl_union_map *umap2;
1847 static int is_subset_entry(void **entry, void *user)
1849 struct isl_union_map_is_subset_data *data = user;
1851 struct isl_hash_table_entry *entry2;
1852 isl_map *map = *entry;
1854 hash = isl_space_get_hash(map->dim);
1855 entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
1856 hash, &has_dim, map->dim, 0);
1858 int empty = isl_map_is_empty(map);
1863 data->is_subset = 0;
1867 data->is_subset = isl_map_is_subset(map, entry2->data);
1868 if (data->is_subset < 0 || !data->is_subset)
1874 int isl_union_map_is_subset(__isl_keep isl_union_map *umap1,
1875 __isl_keep isl_union_map *umap2)
1877 struct isl_union_map_is_subset_data data = { NULL, 1 };
1879 umap1 = isl_union_map_copy(umap1);
1880 umap2 = isl_union_map_copy(umap2);
1881 umap1 = isl_union_map_align_params(umap1, isl_union_map_get_space(umap2));
1882 umap2 = isl_union_map_align_params(umap2, isl_union_map_get_space(umap1));
1884 if (!umap1 || !umap2)
1888 if (isl_hash_table_foreach(umap1->dim->ctx, &umap1->table,
1889 &is_subset_entry, &data) < 0 &&
1893 isl_union_map_free(umap1);
1894 isl_union_map_free(umap2);
1896 return data.is_subset;
1898 isl_union_map_free(umap1);
1899 isl_union_map_free(umap2);
1903 int isl_union_set_is_subset(__isl_keep isl_union_set *uset1,
1904 __isl_keep isl_union_set *uset2)
1906 return isl_union_map_is_subset(uset1, uset2);
1909 int isl_union_map_is_equal(__isl_keep isl_union_map *umap1,
1910 __isl_keep isl_union_map *umap2)
1914 if (!umap1 || !umap2)
1916 is_subset = isl_union_map_is_subset(umap1, umap2);
1919 is_subset = isl_union_map_is_subset(umap2, umap1);
1923 int isl_union_set_is_equal(__isl_keep isl_union_set *uset1,
1924 __isl_keep isl_union_set *uset2)
1926 return isl_union_map_is_equal(uset1, uset2);
1929 int isl_union_map_is_strict_subset(__isl_keep isl_union_map *umap1,
1930 __isl_keep isl_union_map *umap2)
1934 if (!umap1 || !umap2)
1936 is_subset = isl_union_map_is_subset(umap1, umap2);
1939 is_subset = isl_union_map_is_subset(umap2, umap1);
1940 if (is_subset == -1)
1945 int isl_union_set_is_strict_subset(__isl_keep isl_union_set *uset1,
1946 __isl_keep isl_union_set *uset2)
1948 return isl_union_map_is_strict_subset(uset1, uset2);
1951 static int sample_entry(void **entry, void *user)
1953 isl_basic_map **sample = (isl_basic_map **)user;
1954 isl_map *map = *entry;
1956 *sample = isl_map_sample(isl_map_copy(map));
1959 if (!isl_basic_map_plain_is_empty(*sample))
1964 __isl_give isl_basic_map *isl_union_map_sample(__isl_take isl_union_map *umap)
1966 isl_basic_map *sample = NULL;
1971 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
1972 &sample_entry, &sample) < 0 &&
1977 sample = isl_basic_map_empty(isl_union_map_get_space(umap));
1979 isl_union_map_free(umap);
1983 isl_union_map_free(umap);
1987 __isl_give isl_basic_set *isl_union_set_sample(__isl_take isl_union_set *uset)
1989 return (isl_basic_set *)isl_union_map_sample(uset);
1992 struct isl_forall_data {
1994 int (*fn)(__isl_keep isl_map *map);
1997 static int forall_entry(void **entry, void *user)
1999 struct isl_forall_data *data = user;
2000 isl_map *map = *entry;
2002 data->res = data->fn(map);
2012 static int union_map_forall(__isl_keep isl_union_map *umap,
2013 int (*fn)(__isl_keep isl_map *map))
2015 struct isl_forall_data data = { 1, fn };
2020 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
2021 &forall_entry, &data) < 0 && data.res)
2027 struct isl_forall_user_data {
2029 int (*fn)(__isl_keep isl_map *map, void *user);
2033 static int forall_user_entry(void **entry, void *user)
2035 struct isl_forall_user_data *data = user;
2036 isl_map *map = *entry;
2038 data->res = data->fn(map, data->user);
2048 /* Check if fn(map, user) returns true for all maps "map" in umap.
2050 static int union_map_forall_user(__isl_keep isl_union_map *umap,
2051 int (*fn)(__isl_keep isl_map *map, void *user), void *user)
2053 struct isl_forall_user_data data = { 1, fn, user };
2058 if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
2059 &forall_user_entry, &data) < 0 && data.res)
2065 int isl_union_map_is_empty(__isl_keep isl_union_map *umap)
2067 return union_map_forall(umap, &isl_map_is_empty);
2070 int isl_union_set_is_empty(__isl_keep isl_union_set *uset)
2072 return isl_union_map_is_empty(uset);
2075 static int is_subset_of_identity(__isl_keep isl_map *map)
2084 if (!isl_space_tuple_match(map->dim, isl_dim_in, map->dim, isl_dim_out))
2087 dim = isl_map_get_space(map);
2088 id = isl_map_identity(dim);
2090 is_subset = isl_map_is_subset(map, id);
2097 /* Check if the given map is single-valued.
2102 * and check if the result is a subset of the identity mapping.
2104 int isl_union_map_is_single_valued(__isl_keep isl_union_map *umap)
2106 isl_union_map *test;
2109 if (isl_union_map_n_map(umap) == 1) {
2111 umap = isl_union_map_copy(umap);
2112 map = isl_map_from_union_map(umap);
2113 sv = isl_map_is_single_valued(map);
2118 test = isl_union_map_reverse(isl_union_map_copy(umap));
2119 test = isl_union_map_apply_range(test, isl_union_map_copy(umap));
2121 sv = union_map_forall(test, &is_subset_of_identity);
2123 isl_union_map_free(test);
2128 int isl_union_map_is_injective(__isl_keep isl_union_map *umap)
2132 umap = isl_union_map_copy(umap);
2133 umap = isl_union_map_reverse(umap);
2134 in = isl_union_map_is_single_valued(umap);
2135 isl_union_map_free(umap);
2140 /* Represents a map that has a fixed value (v) for one of its
2142 * The map in this structure is not reference counted, so it
2143 * is only valid while the isl_union_map from which it was
2144 * obtained is still alive.
2146 struct isl_fixed_map {
2151 static struct isl_fixed_map *alloc_isl_fixed_map_array(isl_ctx *ctx,
2155 struct isl_fixed_map *v;
2157 v = isl_calloc_array(ctx, struct isl_fixed_map, n);
2160 for (i = 0; i < n; ++i)
2161 isl_int_init(v[i].v);
2165 static void free_isl_fixed_map_array(struct isl_fixed_map *v, int n)
2171 for (i = 0; i < n; ++i)
2172 isl_int_clear(v[i].v);
2176 /* Compare the "v" field of two isl_fixed_map structs.
2178 static int qsort_fixed_map_cmp(const void *p1, const void *p2)
2180 const struct isl_fixed_map *e1 = (const struct isl_fixed_map *) p1;
2181 const struct isl_fixed_map *e2 = (const struct isl_fixed_map *) p2;
2183 return isl_int_cmp(e1->v, e2->v);
2186 /* Internal data structure used while checking whether all maps
2187 * in a union_map have a fixed value for a given output dimension.
2188 * v is the list of maps, with the fixed value for the dimension
2189 * n is the number of maps considered so far
2190 * pos is the output dimension under investigation
2192 struct isl_fixed_dim_data {
2193 struct isl_fixed_map *v;
2198 static int fixed_at_pos(__isl_keep isl_map *map, void *user)
2200 struct isl_fixed_dim_data *data = user;
2202 data->v[data->n].map = map;
2203 return isl_map_plain_is_fixed(map, isl_dim_out, data->pos,
2204 &data->v[data->n++].v);
2207 static int plain_injective_on_range(__isl_take isl_union_map *umap,
2208 int first, int n_range);
2210 /* Given a list of the maps, with their fixed values at output dimension "pos",
2211 * check whether the ranges of the maps form an obvious partition.
2213 * We first sort the maps according to their fixed values.
2214 * If all maps have a different value, then we know the ranges form
2216 * Otherwise, we collect the maps with the same fixed value and
2217 * check whether each such collection is obviously injective
2218 * based on later dimensions.
2220 static int separates(struct isl_fixed_map *v, int n,
2221 __isl_take isl_space *dim, int pos, int n_range)
2228 qsort(v, n, sizeof(*v), &qsort_fixed_map_cmp);
2230 for (i = 0; i + 1 < n; ++i) {
2232 isl_union_map *part;
2235 for (j = i + 1; j < n; ++j)
2236 if (isl_int_ne(v[i].v, v[j].v))
2242 part = isl_union_map_alloc(isl_space_copy(dim), j - i);
2243 for (k = i; k < j; ++k)
2244 part = isl_union_map_add_map(part,
2245 isl_map_copy(v[k].map));
2247 injective = plain_injective_on_range(part, pos + 1, n_range);
2256 isl_space_free(dim);
2257 free_isl_fixed_map_array(v, n);
2260 isl_space_free(dim);
2261 free_isl_fixed_map_array(v, n);
2265 /* Check whether the maps in umap have obviously distinct ranges.
2266 * In particular, check for an output dimension in the range
2267 * [first,n_range) for which all maps have a fixed value
2268 * and then check if these values, possibly along with fixed values
2269 * at later dimensions, entail distinct ranges.
2271 static int plain_injective_on_range(__isl_take isl_union_map *umap,
2272 int first, int n_range)
2276 struct isl_fixed_dim_data data = { NULL };
2278 ctx = isl_union_map_get_ctx(umap);
2280 n = isl_union_map_n_map(umap);
2285 isl_union_map_free(umap);
2289 if (first >= n_range) {
2290 isl_union_map_free(umap);
2294 data.v = alloc_isl_fixed_map_array(ctx, n);
2298 for (data.pos = first; data.pos < n_range; ++data.pos) {
2304 fixed = union_map_forall_user(umap, &fixed_at_pos, &data);
2309 dim = isl_union_map_get_space(umap);
2310 injective = separates(data.v, n, dim, data.pos, n_range);
2311 isl_union_map_free(umap);
2315 free_isl_fixed_map_array(data.v, n);
2316 isl_union_map_free(umap);
2320 free_isl_fixed_map_array(data.v, n);
2321 isl_union_map_free(umap);
2325 /* Check whether the maps in umap that map to subsets of "ran"
2326 * have obviously distinct ranges.
2328 static int plain_injective_on_range_wrap(__isl_keep isl_set *ran, void *user)
2330 isl_union_map *umap = user;
2332 umap = isl_union_map_copy(umap);
2333 umap = isl_union_map_intersect_range(umap,
2334 isl_union_set_from_set(isl_set_copy(ran)));
2335 return plain_injective_on_range(umap, 0, isl_set_dim(ran, isl_dim_set));
2338 /* Check if the given union_map is obviously injective.
2340 * In particular, we first check if all individual maps are obviously
2341 * injective and then check if all the ranges of these maps are
2342 * obviously disjoint.
2344 int isl_union_map_plain_is_injective(__isl_keep isl_union_map *umap)
2347 isl_union_map *univ;
2350 in = union_map_forall(umap, &isl_map_plain_is_injective);
2356 univ = isl_union_map_universe(isl_union_map_copy(umap));
2357 ran = isl_union_map_range(univ);
2359 in = union_map_forall_user(ran, &plain_injective_on_range_wrap, umap);
2361 isl_union_set_free(ran);
2366 int isl_union_map_is_bijective(__isl_keep isl_union_map *umap)
2370 sv = isl_union_map_is_single_valued(umap);
2374 return isl_union_map_is_injective(umap);
2377 static int zip_entry(void **entry, void *user)
2379 isl_map *map = *entry;
2380 isl_union_map **res = user;
2382 if (!isl_map_can_zip(map))
2385 *res = isl_union_map_add_map(*res, isl_map_zip(isl_map_copy(map)));
2390 __isl_give isl_union_map *isl_union_map_zip(__isl_take isl_union_map *umap)
2392 return cond_un_op(umap, &zip_entry);
2395 static int uncurry_entry(void **entry, void *user)
2397 isl_map *map = *entry;
2398 isl_union_map **res = user;
2400 if (!isl_map_can_uncurry(map))
2403 *res = isl_union_map_add_map(*res, isl_map_uncurry(isl_map_copy(map)));
2408 /* Given a union map, take the maps of the form A -> (B -> C) and
2409 * return the union of the corresponding maps (A -> B) -> C.
2411 __isl_give isl_union_map *isl_union_map_uncurry(__isl_take isl_union_map *umap)
2413 return cond_un_op(umap, &uncurry_entry);
2416 static int curry_entry(void **entry, void *user)
2418 isl_map *map = *entry;
2419 isl_union_map **res = user;
2421 if (!isl_map_can_curry(map))
2424 *res = isl_union_map_add_map(*res, isl_map_curry(isl_map_copy(map)));
2429 /* Given a union map, take the maps of the form (A -> B) -> C and
2430 * return the union of the corresponding maps A -> (B -> C).
2432 __isl_give isl_union_map *isl_union_map_curry(__isl_take isl_union_map *umap)
2434 return cond_un_op(umap, &curry_entry);
2437 static int lift_entry(void **entry, void *user)
2439 isl_set *set = *entry;
2440 isl_union_set **res = user;
2442 *res = isl_union_set_add_set(*res, isl_set_lift(isl_set_copy(set)));
2447 __isl_give isl_union_set *isl_union_set_lift(__isl_take isl_union_set *uset)
2449 return cond_un_op(uset, &lift_entry);
2452 static int coefficients_entry(void **entry, void *user)
2454 isl_set *set = *entry;
2455 isl_union_set **res = user;
2457 set = isl_set_copy(set);
2458 set = isl_set_from_basic_set(isl_set_coefficients(set));
2459 *res = isl_union_set_add_set(*res, set);
2464 __isl_give isl_union_set *isl_union_set_coefficients(
2465 __isl_take isl_union_set *uset)
2474 ctx = isl_union_set_get_ctx(uset);
2475 dim = isl_space_set_alloc(ctx, 0, 0);
2476 res = isl_union_map_alloc(dim, uset->table.n);
2477 if (isl_hash_table_foreach(uset->dim->ctx, &uset->table,
2478 &coefficients_entry, &res) < 0)
2481 isl_union_set_free(uset);
2484 isl_union_set_free(uset);
2485 isl_union_set_free(res);
2489 static int solutions_entry(void **entry, void *user)
2491 isl_set *set = *entry;
2492 isl_union_set **res = user;
2494 set = isl_set_copy(set);
2495 set = isl_set_from_basic_set(isl_set_solutions(set));
2497 *res = isl_union_set_from_set(set);
2499 *res = isl_union_set_add_set(*res, set);
2507 __isl_give isl_union_set *isl_union_set_solutions(
2508 __isl_take isl_union_set *uset)
2510 isl_union_set *res = NULL;
2515 if (uset->table.n == 0) {
2516 res = isl_union_set_empty(isl_union_set_get_space(uset));
2517 isl_union_set_free(uset);
2521 if (isl_hash_table_foreach(uset->dim->ctx, &uset->table,
2522 &solutions_entry, &res) < 0)
2525 isl_union_set_free(uset);
2528 isl_union_set_free(uset);
2529 isl_union_set_free(res);
2533 /* Internal data structure for isl_union_map_preimage_domain_multi_aff.
2535 * "ma" is the function under which the preimage should be taken.
2536 * "space" is the space of "ma".
2537 * "res" collects the results.
2539 struct isl_union_map_preimage_domain_data {
2545 /* Compute the preimage of the domain of *entry under the function
2546 * represented by data->ma, provided the domain space of *entry
2547 * match the target space of data->ma, and add the result to data->res.
2549 static int preimage_domain_entry(void **entry, void *user)
2552 isl_map *map = *entry;
2553 struct isl_union_map_preimage_domain_data *data = user;
2556 m = isl_space_tuple_match(map->dim, isl_dim_in,
2557 data->space, isl_dim_out);
2563 map = isl_map_copy(map);
2564 map = isl_map_preimage_domain_multi_aff(map,
2565 isl_multi_aff_copy(data->ma));
2567 empty = isl_map_is_empty(map);
2568 if (empty < 0 || empty) {
2570 return empty < 0 ? -1 : 0;
2573 data->res = isl_union_map_add_map(data->res, map);
2578 /* Compute the preimage of the domain of "umap" under the function
2579 * represented by "ma".
2580 * In other words, plug in "ma" in the domain of "umap".
2581 * The result contains maps that live in the same spaces as the maps of "umap"
2582 * with domain space equal to the target space of "ma",
2583 * except that the domain has been replaced by the domain space of "ma".
2585 __isl_give isl_union_map *isl_union_map_preimage_domain_multi_aff(
2586 __isl_take isl_union_map *umap, __isl_take isl_multi_aff *ma)
2590 struct isl_union_map_preimage_domain_data data;
2595 ctx = isl_union_map_get_ctx(umap);
2596 space = isl_union_map_get_space(umap);
2597 data.space = isl_multi_aff_get_space(ma);
2599 data.res = isl_union_map_alloc(space, umap->table.n);
2600 if (isl_hash_table_foreach(ctx, &umap->table, &preimage_domain_entry,
2602 data.res = isl_union_map_free(data.res);
2604 isl_space_free(data.space);
2605 isl_union_map_free(umap);
2606 isl_multi_aff_free(ma);
2609 isl_union_map_free(umap);
2610 isl_multi_aff_free(ma);