2 * Copyright 2008-2009 Katholieke Universiteit Leuven
3 * Copyright 2010 INRIA Saclay
4 * Copyright 2014 Ecole Normale Superieure
6 * Use of this software is governed by the MIT license
8 * Written by Sven Verdoolaege, K.U.Leuven, Departement
9 * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
10 * and INRIA Saclay - Ile-de-France, Parc Club Orsay Universite,
11 * ZAC des vignes, 4 rue Jacques Monod, 91893 Orsay, France
12 * and Ecole Normale Superieure, 45 rue d’Ulm, 75230 Paris, France
17 #include <isl_space_private.h>
18 #include <isl_id_private.h>
19 #include <isl_reordering.h>
21 isl_ctx
*isl_space_get_ctx(__isl_keep isl_space
*dim
)
23 return dim
? dim
->ctx
: NULL
;
26 __isl_give isl_space
*isl_space_alloc(isl_ctx
*ctx
,
27 unsigned nparam
, unsigned n_in
, unsigned n_out
)
31 dim
= isl_alloc_type(ctx
, struct isl_space
);
42 dim
->tuple_id
[0] = NULL
;
43 dim
->tuple_id
[1] = NULL
;
45 dim
->nested
[0] = NULL
;
46 dim
->nested
[1] = NULL
;
54 /* Mark the space as being that of a set, by setting the domain tuple
57 static __isl_give isl_space
*mark_as_set(__isl_take isl_space
*space
)
59 space
= isl_space_cow(space
);
62 space
= isl_space_set_tuple_id(space
, isl_dim_in
, &isl_id_none
);
66 /* Is the space that of a set?
68 int isl_space_is_set(__isl_keep isl_space
*space
)
72 if (space
->n_in
!= 0 || space
->nested
[0])
74 if (space
->tuple_id
[0] != &isl_id_none
)
79 /* Is the given space that of a map?
81 int isl_space_is_map(__isl_keep isl_space
*space
)
85 return space
->tuple_id
[0] != &isl_id_none
&&
86 space
->tuple_id
[1] != &isl_id_none
;
89 __isl_give isl_space
*isl_space_set_alloc(isl_ctx
*ctx
,
90 unsigned nparam
, unsigned dim
)
93 space
= isl_space_alloc(ctx
, nparam
, 0, dim
);
94 space
= mark_as_set(space
);
98 /* Mark the space as being that of a parameter domain, by setting
99 * both tuples to isl_id_none.
101 static __isl_give isl_space
*mark_as_params(isl_space
*space
)
105 space
= isl_space_set_tuple_id(space
, isl_dim_in
, &isl_id_none
);
106 space
= isl_space_set_tuple_id(space
, isl_dim_out
, &isl_id_none
);
110 /* Is the space that of a parameter domain?
112 int isl_space_is_params(__isl_keep isl_space
*space
)
116 if (space
->n_in
!= 0 || space
->nested
[0] ||
117 space
->n_out
!= 0 || space
->nested
[1])
119 if (space
->tuple_id
[0] != &isl_id_none
)
121 if (space
->tuple_id
[1] != &isl_id_none
)
126 /* Create a space for a parameter domain.
128 __isl_give isl_space
*isl_space_params_alloc(isl_ctx
*ctx
, unsigned nparam
)
131 space
= isl_space_alloc(ctx
, nparam
, 0, 0);
132 space
= mark_as_params(space
);
136 static unsigned global_pos(__isl_keep isl_space
*dim
,
137 enum isl_dim_type type
, unsigned pos
)
139 struct isl_ctx
*ctx
= dim
->ctx
;
143 isl_assert(ctx
, pos
< dim
->nparam
,
144 return isl_space_dim(dim
, isl_dim_all
));
147 isl_assert(ctx
, pos
< dim
->n_in
,
148 return isl_space_dim(dim
, isl_dim_all
));
149 return pos
+ dim
->nparam
;
151 isl_assert(ctx
, pos
< dim
->n_out
,
152 return isl_space_dim(dim
, isl_dim_all
));
153 return pos
+ dim
->nparam
+ dim
->n_in
;
155 isl_assert(ctx
, 0, return isl_space_dim(dim
, isl_dim_all
));
157 return isl_space_dim(dim
, isl_dim_all
);
160 /* Extend length of ids array to the total number of dimensions.
162 static __isl_give isl_space
*extend_ids(__isl_take isl_space
*dim
)
167 if (isl_space_dim(dim
, isl_dim_all
) <= dim
->n_id
)
171 dim
->ids
= isl_calloc_array(dim
->ctx
,
172 isl_id
*, isl_space_dim(dim
, isl_dim_all
));
176 ids
= isl_realloc_array(dim
->ctx
, dim
->ids
,
177 isl_id
*, isl_space_dim(dim
, isl_dim_all
));
181 for (i
= dim
->n_id
; i
< isl_space_dim(dim
, isl_dim_all
); ++i
)
185 dim
->n_id
= isl_space_dim(dim
, isl_dim_all
);
193 static __isl_give isl_space
*set_id(__isl_take isl_space
*dim
,
194 enum isl_dim_type type
, unsigned pos
, __isl_take isl_id
*id
)
196 dim
= isl_space_cow(dim
);
201 pos
= global_pos(dim
, type
, pos
);
202 if (pos
== isl_space_dim(dim
, isl_dim_all
))
205 if (pos
>= dim
->n_id
) {
208 dim
= extend_ids(dim
);
222 static __isl_keep isl_id
*get_id(__isl_keep isl_space
*dim
,
223 enum isl_dim_type type
, unsigned pos
)
228 pos
= global_pos(dim
, type
, pos
);
229 if (pos
== isl_space_dim(dim
, isl_dim_all
))
231 if (pos
>= dim
->n_id
)
233 return dim
->ids
[pos
];
236 static unsigned offset(__isl_keep isl_space
*dim
, enum isl_dim_type type
)
239 case isl_dim_param
: return 0;
240 case isl_dim_in
: return dim
->nparam
;
241 case isl_dim_out
: return dim
->nparam
+ dim
->n_in
;
246 static unsigned n(__isl_keep isl_space
*dim
, enum isl_dim_type type
)
249 case isl_dim_param
: return dim
->nparam
;
250 case isl_dim_in
: return dim
->n_in
;
251 case isl_dim_out
: return dim
->n_out
;
252 case isl_dim_all
: return dim
->nparam
+ dim
->n_in
+ dim
->n_out
;
257 unsigned isl_space_dim(__isl_keep isl_space
*dim
, enum isl_dim_type type
)
264 unsigned isl_space_offset(__isl_keep isl_space
*dim
, enum isl_dim_type type
)
268 return offset(dim
, type
);
271 static __isl_give isl_space
*copy_ids(__isl_take isl_space
*dst
,
272 enum isl_dim_type dst_type
, unsigned offset
, __isl_keep isl_space
*src
,
273 enum isl_dim_type src_type
)
281 for (i
= 0; i
< n(src
, src_type
); ++i
) {
282 id
= get_id(src
, src_type
, i
);
285 dst
= set_id(dst
, dst_type
, offset
+ i
, isl_id_copy(id
));
292 __isl_take isl_space
*isl_space_dup(__isl_keep isl_space
*dim
)
297 dup
= isl_space_alloc(dim
->ctx
, dim
->nparam
, dim
->n_in
, dim
->n_out
);
300 if (dim
->tuple_id
[0] &&
301 !(dup
->tuple_id
[0] = isl_id_copy(dim
->tuple_id
[0])))
303 if (dim
->tuple_id
[1] &&
304 !(dup
->tuple_id
[1] = isl_id_copy(dim
->tuple_id
[1])))
306 if (dim
->nested
[0] && !(dup
->nested
[0] = isl_space_copy(dim
->nested
[0])))
308 if (dim
->nested
[1] && !(dup
->nested
[1] = isl_space_copy(dim
->nested
[1])))
312 dup
= copy_ids(dup
, isl_dim_param
, 0, dim
, isl_dim_param
);
313 dup
= copy_ids(dup
, isl_dim_in
, 0, dim
, isl_dim_in
);
314 dup
= copy_ids(dup
, isl_dim_out
, 0, dim
, isl_dim_out
);
321 __isl_give isl_space
*isl_space_cow(__isl_take isl_space
*dim
)
329 return isl_space_dup(dim
);
332 __isl_give isl_space
*isl_space_copy(__isl_keep isl_space
*dim
)
341 void *isl_space_free(__isl_take isl_space
*dim
)
351 isl_id_free(dim
->tuple_id
[0]);
352 isl_id_free(dim
->tuple_id
[1]);
354 isl_space_free(dim
->nested
[0]);
355 isl_space_free(dim
->nested
[1]);
357 for (i
= 0; i
< dim
->n_id
; ++i
)
358 isl_id_free(dim
->ids
[i
]);
360 isl_ctx_deref(dim
->ctx
);
367 /* Check if "s" is a valid dimension or tuple name.
368 * We currently only forbid names that look like a number.
370 * s is assumed to be non-NULL.
372 static int name_ok(isl_ctx
*ctx
, const char *s
)
377 dummy
= strtol(s
, &p
, 0);
379 isl_die(ctx
, isl_error_invalid
, "name looks like a number",
385 /* Is it possible for the given dimension type to have a tuple id?
387 static int space_can_have_id(__isl_keep isl_space
*space
,
388 enum isl_dim_type type
)
392 if (isl_space_is_params(space
))
393 isl_die(space
->ctx
, isl_error_invalid
,
394 "parameter spaces don't have tuple ids", return 0);
395 if (isl_space_is_set(space
) && type
!= isl_dim_set
)
396 isl_die(space
->ctx
, isl_error_invalid
,
397 "set spaces can only have a set id", return 0);
398 if (type
!= isl_dim_in
&& type
!= isl_dim_out
)
399 isl_die(space
->ctx
, isl_error_invalid
,
400 "only input, output and set tuples can have ids",
406 /* Does the tuple have an id?
408 int isl_space_has_tuple_id(__isl_keep isl_space
*dim
, enum isl_dim_type type
)
410 if (!space_can_have_id(dim
, type
))
412 return dim
->tuple_id
[type
- isl_dim_in
] != NULL
;
415 __isl_give isl_id
*isl_space_get_tuple_id(__isl_keep isl_space
*dim
,
416 enum isl_dim_type type
)
422 has_id
= isl_space_has_tuple_id(dim
, type
);
426 isl_die(dim
->ctx
, isl_error_invalid
,
427 "tuple has no id", return NULL
);
428 return isl_id_copy(dim
->tuple_id
[type
- isl_dim_in
]);
431 __isl_give isl_space
*isl_space_set_tuple_id(__isl_take isl_space
*dim
,
432 enum isl_dim_type type
, __isl_take isl_id
*id
)
434 dim
= isl_space_cow(dim
);
437 if (type
!= isl_dim_in
&& type
!= isl_dim_out
)
438 isl_die(dim
->ctx
, isl_error_invalid
,
439 "only input, output and set tuples can have names",
442 isl_id_free(dim
->tuple_id
[type
- isl_dim_in
]);
443 dim
->tuple_id
[type
- isl_dim_in
] = id
;
452 __isl_give isl_space
*isl_space_reset_tuple_id(__isl_take isl_space
*dim
,
453 enum isl_dim_type type
)
455 dim
= isl_space_cow(dim
);
458 if (type
!= isl_dim_in
&& type
!= isl_dim_out
)
459 isl_die(dim
->ctx
, isl_error_invalid
,
460 "only input, output and set tuples can have names",
463 isl_id_free(dim
->tuple_id
[type
- isl_dim_in
]);
464 dim
->tuple_id
[type
- isl_dim_in
] = NULL
;
472 /* Set the id of the given dimension of "space" to "id".
473 * If the dimension already has an id, then it is replaced.
474 * If the dimension is a parameter, then we need to change it
475 * in the nested spaces (if any) as well.
477 __isl_give isl_space
*isl_space_set_dim_id(__isl_take isl_space
*space
,
478 enum isl_dim_type type
, unsigned pos
, __isl_take isl_id
*id
)
480 space
= isl_space_cow(space
);
484 if (type
== isl_dim_param
) {
487 for (i
= 0; i
< 2; ++i
) {
488 if (!space
->nested
[i
])
491 isl_space_set_dim_id(space
->nested
[i
],
492 type
, pos
, isl_id_copy(id
));
493 if (!space
->nested
[i
])
498 isl_id_free(get_id(space
, type
, pos
));
499 return set_id(space
, type
, pos
, id
);
502 isl_space_free(space
);
506 /* Reset the id of the given dimension of "space".
507 * If the dimension already has an id, then it is removed.
508 * If the dimension is a parameter, then we need to reset it
509 * in the nested spaces (if any) as well.
511 __isl_give isl_space
*isl_space_reset_dim_id(__isl_take isl_space
*space
,
512 enum isl_dim_type type
, unsigned pos
)
514 space
= isl_space_cow(space
);
518 if (type
== isl_dim_param
) {
521 for (i
= 0; i
< 2; ++i
) {
522 if (!space
->nested
[i
])
525 isl_space_reset_dim_id(space
->nested
[i
],
527 if (!space
->nested
[i
])
532 isl_id_free(get_id(space
, type
, pos
));
533 return set_id(space
, type
, pos
, NULL
);
535 isl_space_free(space
);
539 int isl_space_has_dim_id(__isl_keep isl_space
*dim
,
540 enum isl_dim_type type
, unsigned pos
)
544 return get_id(dim
, type
, pos
) != NULL
;
547 __isl_give isl_id
*isl_space_get_dim_id(__isl_keep isl_space
*dim
,
548 enum isl_dim_type type
, unsigned pos
)
552 if (!get_id(dim
, type
, pos
))
553 isl_die(dim
->ctx
, isl_error_invalid
,
554 "dim has no id", return NULL
);
555 return isl_id_copy(get_id(dim
, type
, pos
));
558 __isl_give isl_space
*isl_space_set_tuple_name(__isl_take isl_space
*dim
,
559 enum isl_dim_type type
, const char *s
)
567 return isl_space_reset_tuple_id(dim
, type
);
569 if (!name_ok(dim
->ctx
, s
))
572 id
= isl_id_alloc(dim
->ctx
, s
, NULL
);
573 return isl_space_set_tuple_id(dim
, type
, id
);
579 /* Does the tuple have a name?
581 int isl_space_has_tuple_name(__isl_keep isl_space
*space
,
582 enum isl_dim_type type
)
586 if (!space_can_have_id(space
, type
))
588 id
= space
->tuple_id
[type
- isl_dim_in
];
589 return id
&& id
->name
;
592 const char *isl_space_get_tuple_name(__isl_keep isl_space
*dim
,
593 enum isl_dim_type type
)
598 if (type
!= isl_dim_in
&& type
!= isl_dim_out
)
600 id
= dim
->tuple_id
[type
- isl_dim_in
];
601 return id
? id
->name
: NULL
;
604 __isl_give isl_space
*isl_space_set_dim_name(__isl_take isl_space
*dim
,
605 enum isl_dim_type type
, unsigned pos
,
613 return isl_space_reset_dim_id(dim
, type
, pos
);
614 if (!name_ok(dim
->ctx
, s
))
616 id
= isl_id_alloc(dim
->ctx
, s
, NULL
);
617 return isl_space_set_dim_id(dim
, type
, pos
, id
);
623 /* Does the given dimension have a name?
625 int isl_space_has_dim_name(__isl_keep isl_space
*space
,
626 enum isl_dim_type type
, unsigned pos
)
632 id
= get_id(space
, type
, pos
);
633 return id
&& id
->name
;
636 __isl_keep
const char *isl_space_get_dim_name(__isl_keep isl_space
*dim
,
637 enum isl_dim_type type
, unsigned pos
)
639 isl_id
*id
= get_id(dim
, type
, pos
);
640 return id
? id
->name
: NULL
;
643 int isl_space_find_dim_by_id(__isl_keep isl_space
*dim
, enum isl_dim_type type
,
644 __isl_keep isl_id
*id
)
653 offset
= isl_space_offset(dim
, type
);
654 n
= isl_space_dim(dim
, type
);
655 for (i
= 0; i
< n
&& offset
+ i
< dim
->n_id
; ++i
)
656 if (dim
->ids
[offset
+ i
] == id
)
662 int isl_space_find_dim_by_name(__isl_keep isl_space
*space
,
663 enum isl_dim_type type
, const char *name
)
672 offset
= isl_space_offset(space
, type
);
673 n
= isl_space_dim(space
, type
);
674 for (i
= 0; i
< n
&& offset
+ i
< space
->n_id
; ++i
)
675 if (space
->ids
[offset
+ i
]->name
&&
676 !strcmp(space
->ids
[offset
+ i
]->name
, name
))
682 /* Reset the user pointer on all identifiers of parameters and tuples
685 __isl_give isl_space
*isl_space_reset_user(__isl_take isl_space
*space
)
695 ctx
= isl_space_get_ctx(space
);
697 for (i
= 0; i
< space
->nparam
&& i
< space
->n_id
; ++i
) {
698 if (!isl_id_get_user(space
->ids
[i
]))
700 space
= isl_space_cow(space
);
703 name
= isl_id_get_name(space
->ids
[i
]);
704 id
= isl_id_alloc(ctx
, name
, NULL
);
705 isl_id_free(space
->ids
[i
]);
708 return isl_space_free(space
);
711 for (i
= 0; i
< 2; ++i
) {
712 if (!space
->tuple_id
[i
])
714 if (!isl_id_get_user(space
->tuple_id
[i
]))
716 space
= isl_space_cow(space
);
719 name
= isl_id_get_name(space
->tuple_id
[i
]);
720 id
= isl_id_alloc(ctx
, name
, NULL
);
721 isl_id_free(space
->tuple_id
[i
]);
722 space
->tuple_id
[i
] = id
;
724 return isl_space_free(space
);
727 for (i
= 0; i
< 2; ++i
) {
728 if (!space
->nested
[i
])
730 space
= isl_space_cow(space
);
733 space
->nested
[i
] = isl_space_reset_user(space
->nested
[i
]);
734 if (!space
->nested
[i
])
735 return isl_space_free(space
);
741 static __isl_keep isl_id
*tuple_id(__isl_keep isl_space
*dim
,
742 enum isl_dim_type type
)
746 if (type
== isl_dim_in
)
747 return dim
->tuple_id
[0];
748 if (type
== isl_dim_out
)
749 return dim
->tuple_id
[1];
753 static __isl_keep isl_space
*nested(__isl_keep isl_space
*dim
,
754 enum isl_dim_type type
)
758 if (type
== isl_dim_in
)
759 return dim
->nested
[0];
760 if (type
== isl_dim_out
)
761 return dim
->nested
[1];
765 int isl_space_tuple_match(__isl_keep isl_space
*dim1
, enum isl_dim_type dim1_type
,
766 __isl_keep isl_space
*dim2
, enum isl_dim_type dim2_type
)
769 isl_space
*nested1
, *nested2
;
774 if (dim1
== dim2
&& dim1_type
== dim2_type
)
777 if (n(dim1
, dim1_type
) != n(dim2
, dim2_type
))
779 id1
= tuple_id(dim1
, dim1_type
);
780 id2
= tuple_id(dim2
, dim2_type
);
783 if (id1
&& id1
!= id2
)
785 nested1
= nested(dim1
, dim1_type
);
786 nested2
= nested(dim2
, dim2_type
);
787 if (!nested1
^ !nested2
)
789 if (nested1
&& !isl_space_is_equal(nested1
, nested2
))
794 static int match(__isl_keep isl_space
*dim1
, enum isl_dim_type dim1_type
,
795 __isl_keep isl_space
*dim2
, enum isl_dim_type dim2_type
)
799 if (dim1
== dim2
&& dim1_type
== dim2_type
)
802 if (!isl_space_tuple_match(dim1
, dim1_type
, dim2
, dim2_type
))
805 if (!dim1
->ids
&& !dim2
->ids
)
808 for (i
= 0; i
< n(dim1
, dim1_type
); ++i
) {
809 if (get_id(dim1
, dim1_type
, i
) != get_id(dim2
, dim2_type
, i
))
815 int isl_space_match(__isl_keep isl_space
*dim1
, enum isl_dim_type dim1_type
,
816 __isl_keep isl_space
*dim2
, enum isl_dim_type dim2_type
)
821 return match(dim1
, dim1_type
, dim2
, dim2_type
);
824 static void get_ids(__isl_keep isl_space
*dim
, enum isl_dim_type type
,
825 unsigned first
, unsigned n
, __isl_keep isl_id
**ids
)
829 for (i
= 0; i
< n
; ++i
)
830 ids
[i
] = get_id(dim
, type
, first
+ i
);
833 __isl_give isl_space
*isl_space_extend(__isl_take isl_space
*dim
,
834 unsigned nparam
, unsigned n_in
, unsigned n_out
)
840 if (dim
->nparam
== nparam
&& dim
->n_in
== n_in
&& dim
->n_out
== n_out
)
843 isl_assert(dim
->ctx
, dim
->nparam
<= nparam
, goto error
);
844 isl_assert(dim
->ctx
, dim
->n_in
<= n_in
, goto error
);
845 isl_assert(dim
->ctx
, dim
->n_out
<= n_out
, goto error
);
847 dim
= isl_space_cow(dim
);
852 ids
= isl_calloc_array(dim
->ctx
, isl_id
*,
853 nparam
+ n_in
+ n_out
);
856 get_ids(dim
, isl_dim_param
, 0, dim
->nparam
, ids
);
857 get_ids(dim
, isl_dim_in
, 0, dim
->n_in
, ids
+ nparam
);
858 get_ids(dim
, isl_dim_out
, 0, dim
->n_out
, ids
+ nparam
+ n_in
);
861 dim
->n_id
= nparam
+ n_in
+ n_out
;
863 dim
->nparam
= nparam
;
874 __isl_give isl_space
*isl_space_add_dims(__isl_take isl_space
*dim
,
875 enum isl_dim_type type
, unsigned n
)
879 dim
= isl_space_reset(dim
, type
);
882 dim
= isl_space_extend(dim
,
883 dim
->nparam
+ n
, dim
->n_in
, dim
->n_out
);
884 if (dim
&& dim
->nested
[0] &&
885 !(dim
->nested
[0] = isl_space_add_dims(dim
->nested
[0],
888 if (dim
&& dim
->nested
[1] &&
889 !(dim
->nested
[1] = isl_space_add_dims(dim
->nested
[1],
894 return isl_space_extend(dim
,
895 dim
->nparam
, dim
->n_in
+ n
, dim
->n_out
);
897 return isl_space_extend(dim
,
898 dim
->nparam
, dim
->n_in
, dim
->n_out
+ n
);
900 isl_die(dim
->ctx
, isl_error_invalid
,
901 "cannot add dimensions of specified type", goto error
);
908 static int valid_dim_type(enum isl_dim_type type
)
920 /* Insert "n" dimensions of type "type" at position "pos".
921 * If we are inserting parameters, then they are also inserted in
924 __isl_give isl_space
*isl_space_insert_dims(__isl_take isl_space
*dim
,
925 enum isl_dim_type type
, unsigned pos
, unsigned n
)
932 return isl_space_reset(dim
, type
);
934 if (!valid_dim_type(type
))
935 isl_die(dim
->ctx
, isl_error_invalid
,
936 "cannot insert dimensions of specified type",
939 isl_assert(dim
->ctx
, pos
<= isl_space_dim(dim
, type
), goto error
);
941 dim
= isl_space_cow(dim
);
946 enum isl_dim_type t
, o
= isl_dim_param
;
949 ids
= isl_calloc_array(dim
->ctx
, isl_id
*,
950 dim
->nparam
+ dim
->n_in
+ dim
->n_out
+ n
);
954 s
[isl_dim_param
- o
] = dim
->nparam
;
955 s
[isl_dim_in
- o
] = dim
->n_in
;
956 s
[isl_dim_out
- o
] = dim
->n_out
;
957 for (t
= isl_dim_param
; t
<= isl_dim_out
; ++t
) {
959 get_ids(dim
, t
, 0, s
[t
- o
], ids
+ off
);
962 get_ids(dim
, t
, 0, pos
, ids
+ off
);
964 get_ids(dim
, t
, pos
, s
[t
- o
] - pos
, ids
+ off
);
965 off
+= s
[t
- o
] - pos
;
970 dim
->n_id
= dim
->nparam
+ dim
->n_in
+ dim
->n_out
+ n
;
973 case isl_dim_param
: dim
->nparam
+= n
; break;
974 case isl_dim_in
: dim
->n_in
+= n
; break;
975 case isl_dim_out
: dim
->n_out
+= n
; break;
978 dim
= isl_space_reset(dim
, type
);
980 if (type
== isl_dim_param
) {
981 if (dim
&& dim
->nested
[0] &&
982 !(dim
->nested
[0] = isl_space_insert_dims(dim
->nested
[0],
983 isl_dim_param
, pos
, n
)))
985 if (dim
&& dim
->nested
[1] &&
986 !(dim
->nested
[1] = isl_space_insert_dims(dim
->nested
[1],
987 isl_dim_param
, pos
, n
)))
997 __isl_give isl_space
*isl_space_move_dims(__isl_take isl_space
*dim
,
998 enum isl_dim_type dst_type
, unsigned dst_pos
,
999 enum isl_dim_type src_type
, unsigned src_pos
, unsigned n
)
1006 dim
= isl_space_reset(dim
, src_type
);
1007 return isl_space_reset(dim
, dst_type
);
1010 isl_assert(dim
->ctx
, src_pos
+ n
<= isl_space_dim(dim
, src_type
),
1013 if (dst_type
== src_type
&& dst_pos
== src_pos
)
1016 isl_assert(dim
->ctx
, dst_type
!= src_type
, goto error
);
1018 dim
= isl_space_reset(dim
, src_type
);
1019 dim
= isl_space_reset(dim
, dst_type
);
1021 dim
= isl_space_cow(dim
);
1027 enum isl_dim_type t
, o
= isl_dim_param
;
1030 ids
= isl_calloc_array(dim
->ctx
, isl_id
*,
1031 dim
->nparam
+ dim
->n_in
+ dim
->n_out
);
1035 s
[isl_dim_param
- o
] = dim
->nparam
;
1036 s
[isl_dim_in
- o
] = dim
->n_in
;
1037 s
[isl_dim_out
- o
] = dim
->n_out
;
1038 for (t
= isl_dim_param
; t
<= isl_dim_out
; ++t
) {
1039 if (t
== dst_type
) {
1040 get_ids(dim
, t
, 0, dst_pos
, ids
+ off
);
1042 get_ids(dim
, src_type
, src_pos
, n
, ids
+ off
);
1044 get_ids(dim
, t
, dst_pos
, s
[t
- o
] - dst_pos
,
1046 off
+= s
[t
- o
] - dst_pos
;
1047 } else if (t
== src_type
) {
1048 get_ids(dim
, t
, 0, src_pos
, ids
+ off
);
1050 get_ids(dim
, t
, src_pos
+ n
,
1051 s
[t
- o
] - src_pos
- n
, ids
+ off
);
1052 off
+= s
[t
- o
] - src_pos
- n
;
1054 get_ids(dim
, t
, 0, s
[t
- o
], ids
+ off
);
1060 dim
->n_id
= dim
->nparam
+ dim
->n_in
+ dim
->n_out
;
1064 case isl_dim_param
: dim
->nparam
+= n
; break;
1065 case isl_dim_in
: dim
->n_in
+= n
; break;
1066 case isl_dim_out
: dim
->n_out
+= n
; break;
1071 case isl_dim_param
: dim
->nparam
-= n
; break;
1072 case isl_dim_in
: dim
->n_in
-= n
; break;
1073 case isl_dim_out
: dim
->n_out
-= n
; break;
1077 if (dst_type
!= isl_dim_param
&& src_type
!= isl_dim_param
)
1080 for (i
= 0; i
< 2; ++i
) {
1081 if (!dim
->nested
[i
])
1083 dim
->nested
[i
] = isl_space_replace(dim
->nested
[i
],
1084 isl_dim_param
, dim
);
1085 if (!dim
->nested
[i
])
1091 isl_space_free(dim
);
1095 __isl_give isl_space
*isl_space_join(__isl_take isl_space
*left
,
1096 __isl_take isl_space
*right
)
1100 if (!left
|| !right
)
1103 isl_assert(left
->ctx
, match(left
, isl_dim_param
, right
, isl_dim_param
),
1105 isl_assert(left
->ctx
,
1106 isl_space_tuple_match(left
, isl_dim_out
, right
, isl_dim_in
),
1109 dim
= isl_space_alloc(left
->ctx
, left
->nparam
, left
->n_in
, right
->n_out
);
1113 dim
= copy_ids(dim
, isl_dim_param
, 0, left
, isl_dim_param
);
1114 dim
= copy_ids(dim
, isl_dim_in
, 0, left
, isl_dim_in
);
1115 dim
= copy_ids(dim
, isl_dim_out
, 0, right
, isl_dim_out
);
1117 if (dim
&& left
->tuple_id
[0] &&
1118 !(dim
->tuple_id
[0] = isl_id_copy(left
->tuple_id
[0])))
1120 if (dim
&& right
->tuple_id
[1] &&
1121 !(dim
->tuple_id
[1] = isl_id_copy(right
->tuple_id
[1])))
1123 if (dim
&& left
->nested
[0] &&
1124 !(dim
->nested
[0] = isl_space_copy(left
->nested
[0])))
1126 if (dim
&& right
->nested
[1] &&
1127 !(dim
->nested
[1] = isl_space_copy(right
->nested
[1])))
1130 isl_space_free(left
);
1131 isl_space_free(right
);
1135 isl_space_free(left
);
1136 isl_space_free(right
);
1140 __isl_give isl_space
*isl_space_product(__isl_take isl_space
*left
,
1141 __isl_take isl_space
*right
)
1143 isl_space
*dom1
, *dom2
, *nest1
, *nest2
;
1145 if (!left
|| !right
)
1148 isl_assert(left
->ctx
, match(left
, isl_dim_param
, right
, isl_dim_param
),
1151 dom1
= isl_space_domain(isl_space_copy(left
));
1152 dom2
= isl_space_domain(isl_space_copy(right
));
1153 nest1
= isl_space_wrap(isl_space_join(isl_space_reverse(dom1
), dom2
));
1155 dom1
= isl_space_range(left
);
1156 dom2
= isl_space_range(right
);
1157 nest2
= isl_space_wrap(isl_space_join(isl_space_reverse(dom1
), dom2
));
1159 return isl_space_join(isl_space_reverse(nest1
), nest2
);
1161 isl_space_free(left
);
1162 isl_space_free(right
);
1166 /* Given two spaces { A -> C } and { B -> C }, construct the space
1169 __isl_give isl_space
*isl_space_domain_product(__isl_take isl_space
*left
,
1170 __isl_take isl_space
*right
)
1172 isl_space
*ran
, *dom1
, *dom2
, *nest
;
1174 if (!left
|| !right
)
1177 if (!match(left
, isl_dim_param
, right
, isl_dim_param
))
1178 isl_die(left
->ctx
, isl_error_invalid
,
1179 "parameters need to match", goto error
);
1180 if (!isl_space_tuple_match(left
, isl_dim_out
, right
, isl_dim_out
))
1181 isl_die(left
->ctx
, isl_error_invalid
,
1182 "ranges need to match", goto error
);
1184 ran
= isl_space_range(isl_space_copy(left
));
1186 dom1
= isl_space_domain(left
);
1187 dom2
= isl_space_domain(right
);
1188 nest
= isl_space_wrap(isl_space_join(isl_space_reverse(dom1
), dom2
));
1190 return isl_space_join(isl_space_reverse(nest
), ran
);
1192 isl_space_free(left
);
1193 isl_space_free(right
);
1197 __isl_give isl_space
*isl_space_range_product(__isl_take isl_space
*left
,
1198 __isl_take isl_space
*right
)
1200 isl_space
*dom
, *ran1
, *ran2
, *nest
;
1202 if (!left
|| !right
)
1205 isl_assert(left
->ctx
, match(left
, isl_dim_param
, right
, isl_dim_param
),
1207 if (!isl_space_tuple_match(left
, isl_dim_in
, right
, isl_dim_in
))
1208 isl_die(left
->ctx
, isl_error_invalid
,
1209 "domains need to match", goto error
);
1211 dom
= isl_space_domain(isl_space_copy(left
));
1213 ran1
= isl_space_range(left
);
1214 ran2
= isl_space_range(right
);
1215 nest
= isl_space_wrap(isl_space_join(isl_space_reverse(ran1
), ran2
));
1217 return isl_space_join(isl_space_reverse(dom
), nest
);
1219 isl_space_free(left
);
1220 isl_space_free(right
);
1224 /* Given a space of the form A -> [B -> C], return the space A -> B.
1226 __isl_give isl_space
*isl_space_range_factor_domain(
1227 __isl_take isl_space
*space
)
1234 if (!isl_space_range_is_wrapping(space
))
1235 isl_die(isl_space_get_ctx(space
), isl_error_invalid
,
1236 "range not a product", return isl_space_free(space
));
1238 nested
= space
->nested
[1];
1239 domain
= isl_space_copy(space
);
1240 domain
= isl_space_drop_dims(space
, isl_dim_out
,
1241 nested
->n_in
, nested
->n_out
);
1243 return isl_space_free(space
);
1244 if (nested
->tuple_id
[0]) {
1245 domain
->tuple_id
[1] = isl_id_copy(nested
->tuple_id
[0]);
1246 if (!domain
->tuple_id
[1])
1249 if (nested
->nested
[0]) {
1250 domain
->nested
[1] = isl_space_copy(nested
->nested
[0]);
1251 if (!domain
->nested
[1])
1255 isl_space_free(space
);
1258 isl_space_free(space
);
1259 isl_space_free(domain
);
1263 /* Given a space of the form A -> [B -> C], return the space A -> C.
1265 __isl_give isl_space
*isl_space_range_factor_range(
1266 __isl_take isl_space
*space
)
1273 if (!isl_space_range_is_wrapping(space
))
1274 isl_die(isl_space_get_ctx(space
), isl_error_invalid
,
1275 "range not a product", return isl_space_free(space
));
1277 nested
= space
->nested
[1];
1278 range
= isl_space_copy(space
);
1279 range
= isl_space_drop_dims(space
, isl_dim_out
, 0, nested
->n_in
);
1281 return isl_space_free(space
);
1282 if (nested
->tuple_id
[1]) {
1283 range
->tuple_id
[1] = isl_id_copy(nested
->tuple_id
[1]);
1284 if (!range
->tuple_id
[1])
1287 if (nested
->nested
[1]) {
1288 range
->nested
[1] = isl_space_copy(nested
->nested
[1]);
1289 if (!range
->nested
[1])
1293 isl_space_free(space
);
1296 isl_space_free(space
);
1297 isl_space_free(range
);
1301 __isl_give isl_space
*isl_space_map_from_set(__isl_take isl_space
*dim
)
1304 isl_id
**ids
= NULL
;
1308 ctx
= isl_space_get_ctx(dim
);
1309 if (!isl_space_is_set(dim
))
1310 isl_die(ctx
, isl_error_invalid
, "not a set space", goto error
);
1311 dim
= isl_space_cow(dim
);
1315 ids
= isl_calloc_array(dim
->ctx
, isl_id
*,
1316 dim
->nparam
+ dim
->n_out
+ dim
->n_out
);
1319 get_ids(dim
, isl_dim_param
, 0, dim
->nparam
, ids
);
1320 get_ids(dim
, isl_dim_out
, 0, dim
->n_out
, ids
+ dim
->nparam
);
1322 dim
->n_in
= dim
->n_out
;
1326 dim
->n_id
= dim
->nparam
+ dim
->n_out
+ dim
->n_out
;
1327 dim
= copy_ids(dim
, isl_dim_out
, 0, dim
, isl_dim_in
);
1329 isl_id_free(dim
->tuple_id
[0]);
1330 dim
->tuple_id
[0] = isl_id_copy(dim
->tuple_id
[1]);
1331 isl_space_free(dim
->nested
[0]);
1332 dim
->nested
[0] = isl_space_copy(dim
->nested
[1]);
1335 isl_space_free(dim
);
1339 __isl_give isl_space
*isl_space_map_from_domain_and_range(
1340 __isl_take isl_space
*domain
, __isl_take isl_space
*range
)
1342 if (!domain
|| !range
)
1344 if (!isl_space_is_set(domain
))
1345 isl_die(isl_space_get_ctx(domain
), isl_error_invalid
,
1346 "domain is not a set space", goto error
);
1347 if (!isl_space_is_set(range
))
1348 isl_die(isl_space_get_ctx(range
), isl_error_invalid
,
1349 "range is not a set space", goto error
);
1350 return isl_space_join(isl_space_reverse(domain
), range
);
1352 isl_space_free(domain
);
1353 isl_space_free(range
);
1357 static __isl_give isl_space
*set_ids(__isl_take isl_space
*dim
,
1358 enum isl_dim_type type
,
1359 unsigned first
, unsigned n
, __isl_take isl_id
**ids
)
1363 for (i
= 0; i
< n
; ++i
)
1364 dim
= set_id(dim
, type
, first
+ i
, ids
[i
]);
1369 __isl_give isl_space
*isl_space_reverse(__isl_take isl_space
*dim
)
1373 isl_id
**ids
= NULL
;
1378 if (match(dim
, isl_dim_in
, dim
, isl_dim_out
))
1381 dim
= isl_space_cow(dim
);
1385 id
= dim
->tuple_id
[0];
1386 dim
->tuple_id
[0] = dim
->tuple_id
[1];
1387 dim
->tuple_id
[1] = id
;
1389 nested
= dim
->nested
[0];
1390 dim
->nested
[0] = dim
->nested
[1];
1391 dim
->nested
[1] = nested
;
1394 int n_id
= dim
->n_in
+ dim
->n_out
;
1395 ids
= isl_alloc_array(dim
->ctx
, isl_id
*, n_id
);
1398 get_ids(dim
, isl_dim_in
, 0, dim
->n_in
, ids
);
1399 get_ids(dim
, isl_dim_out
, 0, dim
->n_out
, ids
+ dim
->n_in
);
1403 dim
->n_in
= dim
->n_out
;
1407 dim
= set_ids(dim
, isl_dim_out
, 0, dim
->n_out
, ids
);
1408 dim
= set_ids(dim
, isl_dim_in
, 0, dim
->n_in
, ids
+ dim
->n_out
);
1415 isl_space_free(dim
);
1419 __isl_give isl_space
*isl_space_drop_dims(__isl_take isl_space
*dim
,
1420 enum isl_dim_type type
, unsigned first
, unsigned num
)
1428 return isl_space_reset(dim
, type
);
1430 if (!valid_dim_type(type
))
1431 isl_die(dim
->ctx
, isl_error_invalid
,
1432 "cannot drop dimensions of specified type", goto error
);
1434 isl_assert(dim
->ctx
, first
+ num
<= n(dim
, type
), goto error
);
1435 dim
= isl_space_cow(dim
);
1439 dim
= extend_ids(dim
);
1442 for (i
= 0; i
< num
; ++i
)
1443 isl_id_free(get_id(dim
, type
, first
+ i
));
1444 for (i
= first
+num
; i
< n(dim
, type
); ++i
)
1445 set_id(dim
, type
, i
- num
, get_id(dim
, type
, i
));
1448 get_ids(dim
, isl_dim_in
, 0, dim
->n_in
,
1449 dim
->ids
+ offset(dim
, isl_dim_in
) - num
);
1451 get_ids(dim
, isl_dim_out
, 0, dim
->n_out
,
1452 dim
->ids
+ offset(dim
, isl_dim_out
) - num
);
1459 case isl_dim_param
: dim
->nparam
-= num
; break;
1460 case isl_dim_in
: dim
->n_in
-= num
; break;
1461 case isl_dim_out
: dim
->n_out
-= num
; break;
1464 dim
= isl_space_reset(dim
, type
);
1465 if (type
== isl_dim_param
) {
1466 if (dim
&& dim
->nested
[0] &&
1467 !(dim
->nested
[0] = isl_space_drop_dims(dim
->nested
[0],
1468 isl_dim_param
, first
, num
)))
1470 if (dim
&& dim
->nested
[1] &&
1471 !(dim
->nested
[1] = isl_space_drop_dims(dim
->nested
[1],
1472 isl_dim_param
, first
, num
)))
1477 isl_space_free(dim
);
1481 __isl_give isl_space
*isl_space_drop_inputs(__isl_take isl_space
*dim
,
1482 unsigned first
, unsigned n
)
1486 return isl_space_drop_dims(dim
, isl_dim_in
, first
, n
);
1489 __isl_give isl_space
*isl_space_drop_outputs(__isl_take isl_space
*dim
,
1490 unsigned first
, unsigned n
)
1494 return isl_space_drop_dims(dim
, isl_dim_out
, first
, n
);
1497 __isl_give isl_space
*isl_space_domain(__isl_take isl_space
*dim
)
1501 dim
= isl_space_drop_outputs(dim
, 0, dim
->n_out
);
1502 dim
= isl_space_reverse(dim
);
1503 dim
= mark_as_set(dim
);
1507 __isl_give isl_space
*isl_space_from_domain(__isl_take isl_space
*dim
)
1511 if (!isl_space_is_set(dim
))
1512 isl_die(isl_space_get_ctx(dim
), isl_error_invalid
,
1513 "not a set space", goto error
);
1514 dim
= isl_space_reverse(dim
);
1515 dim
= isl_space_reset(dim
, isl_dim_out
);
1518 isl_space_free(dim
);
1522 __isl_give isl_space
*isl_space_range(__isl_take isl_space
*dim
)
1526 dim
= isl_space_drop_inputs(dim
, 0, dim
->n_in
);
1527 dim
= mark_as_set(dim
);
1531 __isl_give isl_space
*isl_space_from_range(__isl_take isl_space
*dim
)
1535 if (!isl_space_is_set(dim
))
1536 isl_die(isl_space_get_ctx(dim
), isl_error_invalid
,
1537 "not a set space", goto error
);
1538 return isl_space_reset(dim
, isl_dim_in
);
1540 isl_space_free(dim
);
1544 /* Given a map space A -> B, return the map space [A -> B] -> A.
1546 __isl_give isl_space
*isl_space_domain_map(__isl_take isl_space
*space
)
1550 domain
= isl_space_from_range(isl_space_domain(isl_space_copy(space
)));
1551 space
= isl_space_from_domain(isl_space_wrap(space
));
1552 space
= isl_space_join(space
, domain
);
1557 /* Given a map space A -> B, return the map space [A -> B] -> B.
1559 __isl_give isl_space
*isl_space_range_map(__isl_take isl_space
*space
)
1563 range
= isl_space_from_range(isl_space_range(isl_space_copy(space
)));
1564 space
= isl_space_from_domain(isl_space_wrap(space
));
1565 space
= isl_space_join(space
, range
);
1570 __isl_give isl_space
*isl_space_params(__isl_take isl_space
*space
)
1572 if (isl_space_is_params(space
))
1574 space
= isl_space_drop_dims(space
,
1575 isl_dim_in
, 0, isl_space_dim(space
, isl_dim_in
));
1576 space
= isl_space_drop_dims(space
,
1577 isl_dim_out
, 0, isl_space_dim(space
, isl_dim_out
));
1578 space
= mark_as_params(space
);
1582 __isl_give isl_space
*isl_space_set_from_params(__isl_take isl_space
*space
)
1586 if (!isl_space_is_params(space
))
1587 isl_die(isl_space_get_ctx(space
), isl_error_invalid
,
1588 "not a parameter space", goto error
);
1589 return isl_space_reset(space
, isl_dim_set
);
1591 isl_space_free(space
);
1595 __isl_give isl_space
*isl_space_as_set_space(__isl_take isl_space
*dim
)
1597 dim
= isl_space_cow(dim
);
1601 dim
->n_out
+= dim
->n_in
;
1603 dim
= isl_space_reset(dim
, isl_dim_in
);
1604 dim
= isl_space_reset(dim
, isl_dim_out
);
1609 __isl_give isl_space
*isl_space_underlying(__isl_take isl_space
*dim
,
1617 dim
->nparam
== 0 && dim
->n_in
== 0 && dim
->n_id
== 0)
1618 return isl_space_reset(isl_space_reset(dim
, isl_dim_in
), isl_dim_out
);
1619 dim
= isl_space_cow(dim
);
1622 dim
->n_out
+= dim
->nparam
+ dim
->n_in
+ n_div
;
1626 for (i
= 0; i
< dim
->n_id
; ++i
)
1627 isl_id_free(get_id(dim
, isl_dim_out
, i
));
1629 dim
= isl_space_reset(dim
, isl_dim_in
);
1630 dim
= isl_space_reset(dim
, isl_dim_out
);
1635 /* Are the two spaces the same, including positions and names of parameters?
1637 int isl_space_is_equal(__isl_keep isl_space
*dim1
, __isl_keep isl_space
*dim2
)
1643 return match(dim1
, isl_dim_param
, dim2
, isl_dim_param
) &&
1644 isl_space_tuple_match(dim1
, isl_dim_in
, dim2
, isl_dim_in
) &&
1645 isl_space_tuple_match(dim1
, isl_dim_out
, dim2
, isl_dim_out
);
1648 /* Is space1 equal to the domain of space2?
1650 * In the internal version we also allow space2 to be the space of a set,
1651 * provided space1 is a parameter space.
1653 int isl_space_is_domain_internal(__isl_keep isl_space
*space1
,
1654 __isl_keep isl_space
*space2
)
1656 if (!space1
|| !space2
)
1658 if (!isl_space_is_set(space1
))
1660 return match(space1
, isl_dim_param
, space2
, isl_dim_param
) &&
1661 isl_space_tuple_match(space1
, isl_dim_set
, space2
, isl_dim_in
);
1664 /* Is space1 equal to the domain of space2?
1666 int isl_space_is_domain(__isl_keep isl_space
*space1
,
1667 __isl_keep isl_space
*space2
)
1671 if (!isl_space_is_map(space2
))
1673 return isl_space_is_domain_internal(space1
, space2
);
1676 /* Is space1 equal to the range of space2?
1678 * In the internal version, space2 is allowed to be the space of a set,
1679 * in which case it should be equal to space1.
1681 int isl_space_is_range_internal(__isl_keep isl_space
*space1
,
1682 __isl_keep isl_space
*space2
)
1684 if (!space1
|| !space2
)
1686 if (!isl_space_is_set(space1
))
1688 return match(space1
, isl_dim_param
, space2
, isl_dim_param
) &&
1689 isl_space_tuple_match(space1
, isl_dim_set
, space2
, isl_dim_out
);
1692 /* Is space1 equal to the range of space2?
1694 int isl_space_is_range(__isl_keep isl_space
*space1
,
1695 __isl_keep isl_space
*space2
)
1699 if (!isl_space_is_map(space2
))
1701 return isl_space_is_range_internal(space1
, space2
);
1704 int isl_space_compatible(__isl_keep isl_space
*dim1
,
1705 __isl_keep isl_space
*dim2
)
1707 return dim1
->nparam
== dim2
->nparam
&&
1708 dim1
->n_in
+ dim1
->n_out
== dim2
->n_in
+ dim2
->n_out
;
1711 static uint32_t isl_hash_dim(uint32_t hash
, __isl_keep isl_space
*dim
)
1719 isl_hash_byte(hash
, dim
->nparam
% 256);
1720 isl_hash_byte(hash
, dim
->n_in
% 256);
1721 isl_hash_byte(hash
, dim
->n_out
% 256);
1723 for (i
= 0; i
< dim
->nparam
; ++i
) {
1724 id
= get_id(dim
, isl_dim_param
, i
);
1725 hash
= isl_hash_id(hash
, id
);
1728 id
= tuple_id(dim
, isl_dim_in
);
1729 hash
= isl_hash_id(hash
, id
);
1730 id
= tuple_id(dim
, isl_dim_out
);
1731 hash
= isl_hash_id(hash
, id
);
1733 hash
= isl_hash_dim(hash
, dim
->nested
[0]);
1734 hash
= isl_hash_dim(hash
, dim
->nested
[1]);
1739 uint32_t isl_space_get_hash(__isl_keep isl_space
*dim
)
1746 hash
= isl_hash_init();
1747 hash
= isl_hash_dim(hash
, dim
);
1752 int isl_space_is_wrapping(__isl_keep isl_space
*dim
)
1757 if (!isl_space_is_set(dim
))
1760 return dim
->nested
[1] != NULL
;
1763 /* Is "space" the space of a map where the range is a wrapped map space?
1765 int isl_space_range_is_wrapping(__isl_keep isl_space
*space
)
1770 if (isl_space_is_set(space
))
1773 return space
->nested
[1] != NULL
;
1776 __isl_give isl_space
*isl_space_wrap(__isl_take isl_space
*dim
)
1783 wrap
= isl_space_set_alloc(dim
->ctx
,
1784 dim
->nparam
, dim
->n_in
+ dim
->n_out
);
1786 wrap
= copy_ids(wrap
, isl_dim_param
, 0, dim
, isl_dim_param
);
1787 wrap
= copy_ids(wrap
, isl_dim_set
, 0, dim
, isl_dim_in
);
1788 wrap
= copy_ids(wrap
, isl_dim_set
, dim
->n_in
, dim
, isl_dim_out
);
1793 wrap
->nested
[1] = dim
;
1797 isl_space_free(dim
);
1801 __isl_give isl_space
*isl_space_unwrap(__isl_take isl_space
*dim
)
1808 if (!isl_space_is_wrapping(dim
))
1809 isl_die(dim
->ctx
, isl_error_invalid
, "not a wrapping space",
1812 unwrap
= isl_space_copy(dim
->nested
[1]);
1813 isl_space_free(dim
);
1817 isl_space_free(dim
);
1821 int isl_space_is_named_or_nested(__isl_keep isl_space
*dim
, enum isl_dim_type type
)
1823 if (type
!= isl_dim_in
&& type
!= isl_dim_out
)
1827 if (dim
->tuple_id
[type
- isl_dim_in
])
1829 if (dim
->nested
[type
- isl_dim_in
])
1834 int isl_space_may_be_set(__isl_keep isl_space
*dim
)
1838 if (isl_space_is_set(dim
))
1840 if (isl_space_dim(dim
, isl_dim_in
) != 0)
1842 if (isl_space_is_named_or_nested(dim
, isl_dim_in
))
1847 __isl_give isl_space
*isl_space_reset(__isl_take isl_space
*dim
,
1848 enum isl_dim_type type
)
1850 if (!isl_space_is_named_or_nested(dim
, type
))
1853 dim
= isl_space_cow(dim
);
1857 isl_id_free(dim
->tuple_id
[type
- isl_dim_in
]);
1858 dim
->tuple_id
[type
- isl_dim_in
] = NULL
;
1859 isl_space_free(dim
->nested
[type
- isl_dim_in
]);
1860 dim
->nested
[type
- isl_dim_in
] = NULL
;
1865 __isl_give isl_space
*isl_space_flatten(__isl_take isl_space
*dim
)
1869 if (!dim
->nested
[0] && !dim
->nested
[1])
1873 dim
= isl_space_reset(dim
, isl_dim_in
);
1874 if (dim
&& dim
->nested
[1])
1875 dim
= isl_space_reset(dim
, isl_dim_out
);
1880 __isl_give isl_space
*isl_space_flatten_domain(__isl_take isl_space
*dim
)
1884 if (!dim
->nested
[0])
1887 return isl_space_reset(dim
, isl_dim_in
);
1890 __isl_give isl_space
*isl_space_flatten_range(__isl_take isl_space
*dim
)
1894 if (!dim
->nested
[1])
1897 return isl_space_reset(dim
, isl_dim_out
);
1900 /* Replace the dimensions of the given type of dst by those of src.
1902 __isl_give isl_space
*isl_space_replace(__isl_take isl_space
*dst
,
1903 enum isl_dim_type type
, __isl_keep isl_space
*src
)
1905 dst
= isl_space_cow(dst
);
1910 dst
= isl_space_drop_dims(dst
, type
, 0, isl_space_dim(dst
, type
));
1911 dst
= isl_space_add_dims(dst
, type
, isl_space_dim(src
, type
));
1912 dst
= copy_ids(dst
, type
, 0, src
, type
);
1914 if (dst
&& type
== isl_dim_param
) {
1916 for (i
= 0; i
<= 1; ++i
) {
1917 if (!dst
->nested
[i
])
1919 dst
->nested
[i
] = isl_space_replace(dst
->nested
[i
],
1921 if (!dst
->nested
[i
])
1928 isl_space_free(dst
);
1932 /* Given a dimension specification "dim" of a set, create a dimension
1933 * specification for the lift of the set. In particular, the result
1934 * is of the form [dim -> local[..]], with n_local variables in the
1935 * range of the wrapped map.
1937 __isl_give isl_space
*isl_space_lift(__isl_take isl_space
*dim
, unsigned n_local
)
1939 isl_space
*local_dim
;
1944 local_dim
= isl_space_dup(dim
);
1945 local_dim
= isl_space_drop_dims(local_dim
, isl_dim_set
, 0, dim
->n_out
);
1946 local_dim
= isl_space_add_dims(local_dim
, isl_dim_set
, n_local
);
1947 local_dim
= isl_space_set_tuple_name(local_dim
, isl_dim_set
, "local");
1948 dim
= isl_space_join(isl_space_from_domain(dim
),
1949 isl_space_from_range(local_dim
));
1950 dim
= isl_space_wrap(dim
);
1951 dim
= isl_space_set_tuple_name(dim
, isl_dim_set
, "lifted");
1956 int isl_space_can_zip(__isl_keep isl_space
*dim
)
1961 return dim
->nested
[0] && dim
->nested
[1];
1964 __isl_give isl_space
*isl_space_zip(__isl_take isl_space
*dim
)
1966 isl_space
*dom
, *ran
;
1967 isl_space
*dom_dom
, *dom_ran
, *ran_dom
, *ran_ran
;
1969 if (!isl_space_can_zip(dim
))
1970 isl_die(dim
->ctx
, isl_error_invalid
, "dim cannot be zipped",
1975 dom
= isl_space_unwrap(isl_space_domain(isl_space_copy(dim
)));
1976 ran
= isl_space_unwrap(isl_space_range(dim
));
1977 dom_dom
= isl_space_domain(isl_space_copy(dom
));
1978 dom_ran
= isl_space_range(dom
);
1979 ran_dom
= isl_space_domain(isl_space_copy(ran
));
1980 ran_ran
= isl_space_range(ran
);
1981 dom
= isl_space_join(isl_space_from_domain(dom_dom
),
1982 isl_space_from_range(ran_dom
));
1983 ran
= isl_space_join(isl_space_from_domain(dom_ran
),
1984 isl_space_from_range(ran_ran
));
1985 return isl_space_join(isl_space_from_domain(isl_space_wrap(dom
)),
1986 isl_space_from_range(isl_space_wrap(ran
)));
1988 isl_space_free(dim
);
1992 /* Can we apply isl_space_curry to "space"?
1993 * That is, does it have a nested relation in its domain?
1995 int isl_space_can_curry(__isl_keep isl_space
*space
)
2000 return !!space
->nested
[0];
2003 /* Given a space (A -> B) -> C, return the corresponding space
2006 __isl_give isl_space
*isl_space_curry(__isl_take isl_space
*space
)
2008 isl_space
*dom
, *ran
;
2009 isl_space
*dom_dom
, *dom_ran
;
2014 if (!isl_space_can_curry(space
))
2015 isl_die(space
->ctx
, isl_error_invalid
,
2016 "space cannot be curried", goto error
);
2018 dom
= isl_space_unwrap(isl_space_domain(isl_space_copy(space
)));
2019 ran
= isl_space_range(space
);
2020 dom_dom
= isl_space_domain(isl_space_copy(dom
));
2021 dom_ran
= isl_space_range(dom
);
2022 ran
= isl_space_join(isl_space_from_domain(dom_ran
),
2023 isl_space_from_range(ran
));
2024 return isl_space_join(isl_space_from_domain(dom_dom
),
2025 isl_space_from_range(isl_space_wrap(ran
)));
2027 isl_space_free(space
);
2031 /* Can we apply isl_space_uncurry to "space"?
2032 * That is, does it have a nested relation in its range?
2034 int isl_space_can_uncurry(__isl_keep isl_space
*space
)
2039 return !!space
->nested
[1];
2042 /* Given a space A -> (B -> C), return the corresponding space
2045 __isl_give isl_space
*isl_space_uncurry(__isl_take isl_space
*space
)
2047 isl_space
*dom
, *ran
;
2048 isl_space
*ran_dom
, *ran_ran
;
2053 if (!isl_space_can_uncurry(space
))
2054 isl_die(space
->ctx
, isl_error_invalid
,
2055 "space cannot be uncurried",
2056 return isl_space_free(space
));
2058 dom
= isl_space_domain(isl_space_copy(space
));
2059 ran
= isl_space_unwrap(isl_space_range(space
));
2060 ran_dom
= isl_space_domain(isl_space_copy(ran
));
2061 ran_ran
= isl_space_range(ran
);
2062 dom
= isl_space_join(isl_space_from_domain(dom
),
2063 isl_space_from_range(ran_dom
));
2064 return isl_space_join(isl_space_from_domain(isl_space_wrap(dom
)),
2065 isl_space_from_range(ran_ran
));
2068 int isl_space_has_named_params(__isl_keep isl_space
*dim
)
2075 if (dim
->nparam
== 0)
2077 off
= isl_space_offset(dim
, isl_dim_param
);
2078 if (off
+ dim
->nparam
> dim
->n_id
)
2080 for (i
= 0; i
< dim
->nparam
; ++i
)
2081 if (!dim
->ids
[off
+ i
])
2086 /* Align the initial parameters of dim1 to match the order in dim2.
2088 __isl_give isl_space
*isl_space_align_params(__isl_take isl_space
*dim1
,
2089 __isl_take isl_space
*dim2
)
2091 isl_reordering
*exp
;
2093 if (!isl_space_has_named_params(dim1
) || !isl_space_has_named_params(dim2
))
2094 isl_die(isl_space_get_ctx(dim1
), isl_error_invalid
,
2095 "parameter alignment requires named parameters",
2098 dim2
= isl_space_params(dim2
);
2099 exp
= isl_parameter_alignment_reordering(dim1
, dim2
);
2100 exp
= isl_reordering_extend_space(exp
, dim1
);
2101 isl_space_free(dim2
);
2104 dim1
= isl_space_copy(exp
->dim
);
2105 isl_reordering_free(exp
);
2108 isl_space_free(dim1
);
2109 isl_space_free(dim2
);
2113 /* Given the space of set (domain), construct a space for a map
2114 * with as domain the given space and as range the range of "model".
2116 __isl_give isl_space
*isl_space_extend_domain_with_range(
2117 __isl_take isl_space
*space
, __isl_take isl_space
*model
)
2122 space
= isl_space_from_domain(space
);
2123 space
= isl_space_add_dims(space
, isl_dim_out
,
2124 isl_space_dim(model
, isl_dim_out
));
2125 if (isl_space_has_tuple_id(model
, isl_dim_out
))
2126 space
= isl_space_set_tuple_id(space
, isl_dim_out
,
2127 isl_space_get_tuple_id(model
, isl_dim_out
));
2130 if (model
->nested
[1]) {
2131 isl_space
*nested
= isl_space_copy(model
->nested
[1]);
2132 int n_nested
, n_space
;
2133 nested
= isl_space_align_params(nested
, isl_space_copy(space
));
2134 n_nested
= isl_space_dim(nested
, isl_dim_param
);
2135 n_space
= isl_space_dim(space
, isl_dim_param
);
2136 if (n_nested
> n_space
)
2137 nested
= isl_space_drop_dims(nested
, isl_dim_param
,
2138 n_space
, n_nested
- n_space
);
2141 space
->nested
[1] = nested
;
2143 isl_space_free(model
);
2146 isl_space_free(model
);
2147 isl_space_free(space
);