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 static __isl_keep isl_id
*tuple_id(__isl_keep isl_space
*dim
,
683 enum isl_dim_type type
)
687 if (type
== isl_dim_in
)
688 return dim
->tuple_id
[0];
689 if (type
== isl_dim_out
)
690 return dim
->tuple_id
[1];
694 static __isl_keep isl_space
*nested(__isl_keep isl_space
*dim
,
695 enum isl_dim_type type
)
699 if (type
== isl_dim_in
)
700 return dim
->nested
[0];
701 if (type
== isl_dim_out
)
702 return dim
->nested
[1];
706 int isl_space_tuple_match(__isl_keep isl_space
*dim1
, enum isl_dim_type dim1_type
,
707 __isl_keep isl_space
*dim2
, enum isl_dim_type dim2_type
)
710 isl_space
*nested1
, *nested2
;
715 if (dim1
== dim2
&& dim1_type
== dim2_type
)
718 if (n(dim1
, dim1_type
) != n(dim2
, dim2_type
))
720 id1
= tuple_id(dim1
, dim1_type
);
721 id2
= tuple_id(dim2
, dim2_type
);
724 if (id1
&& id1
!= id2
)
726 nested1
= nested(dim1
, dim1_type
);
727 nested2
= nested(dim2
, dim2_type
);
728 if (!nested1
^ !nested2
)
730 if (nested1
&& !isl_space_is_equal(nested1
, nested2
))
735 static int match(__isl_keep isl_space
*dim1
, enum isl_dim_type dim1_type
,
736 __isl_keep isl_space
*dim2
, enum isl_dim_type dim2_type
)
740 if (dim1
== dim2
&& dim1_type
== dim2_type
)
743 if (!isl_space_tuple_match(dim1
, dim1_type
, dim2
, dim2_type
))
746 if (!dim1
->ids
&& !dim2
->ids
)
749 for (i
= 0; i
< n(dim1
, dim1_type
); ++i
) {
750 if (get_id(dim1
, dim1_type
, i
) != get_id(dim2
, dim2_type
, i
))
756 int isl_space_match(__isl_keep isl_space
*dim1
, enum isl_dim_type dim1_type
,
757 __isl_keep isl_space
*dim2
, enum isl_dim_type dim2_type
)
762 return match(dim1
, dim1_type
, dim2
, dim2_type
);
765 static void get_ids(__isl_keep isl_space
*dim
, enum isl_dim_type type
,
766 unsigned first
, unsigned n
, __isl_keep isl_id
**ids
)
770 for (i
= 0; i
< n
; ++i
)
771 ids
[i
] = get_id(dim
, type
, first
+ i
);
774 __isl_give isl_space
*isl_space_extend(__isl_take isl_space
*dim
,
775 unsigned nparam
, unsigned n_in
, unsigned n_out
)
781 if (dim
->nparam
== nparam
&& dim
->n_in
== n_in
&& dim
->n_out
== n_out
)
784 isl_assert(dim
->ctx
, dim
->nparam
<= nparam
, goto error
);
785 isl_assert(dim
->ctx
, dim
->n_in
<= n_in
, goto error
);
786 isl_assert(dim
->ctx
, dim
->n_out
<= n_out
, goto error
);
788 dim
= isl_space_cow(dim
);
793 ids
= isl_calloc_array(dim
->ctx
, isl_id
*,
794 nparam
+ n_in
+ n_out
);
797 get_ids(dim
, isl_dim_param
, 0, dim
->nparam
, ids
);
798 get_ids(dim
, isl_dim_in
, 0, dim
->n_in
, ids
+ nparam
);
799 get_ids(dim
, isl_dim_out
, 0, dim
->n_out
, ids
+ nparam
+ n_in
);
802 dim
->n_id
= nparam
+ n_in
+ n_out
;
804 dim
->nparam
= nparam
;
815 __isl_give isl_space
*isl_space_add_dims(__isl_take isl_space
*dim
,
816 enum isl_dim_type type
, unsigned n
)
820 dim
= isl_space_reset(dim
, type
);
823 dim
= isl_space_extend(dim
,
824 dim
->nparam
+ n
, dim
->n_in
, dim
->n_out
);
825 if (dim
&& dim
->nested
[0] &&
826 !(dim
->nested
[0] = isl_space_add_dims(dim
->nested
[0],
829 if (dim
&& dim
->nested
[1] &&
830 !(dim
->nested
[1] = isl_space_add_dims(dim
->nested
[1],
835 return isl_space_extend(dim
,
836 dim
->nparam
, dim
->n_in
+ n
, dim
->n_out
);
838 return isl_space_extend(dim
,
839 dim
->nparam
, dim
->n_in
, dim
->n_out
+ n
);
841 isl_die(dim
->ctx
, isl_error_invalid
,
842 "cannot add dimensions of specified type", goto error
);
849 static int valid_dim_type(enum isl_dim_type type
)
861 /* Insert "n" dimensions of type "type" at position "pos".
862 * If we are inserting parameters, then they are also inserted in
865 __isl_give isl_space
*isl_space_insert_dims(__isl_take isl_space
*dim
,
866 enum isl_dim_type type
, unsigned pos
, unsigned n
)
873 return isl_space_reset(dim
, type
);
875 if (!valid_dim_type(type
))
876 isl_die(dim
->ctx
, isl_error_invalid
,
877 "cannot insert dimensions of specified type",
880 isl_assert(dim
->ctx
, pos
<= isl_space_dim(dim
, type
), goto error
);
882 dim
= isl_space_cow(dim
);
887 enum isl_dim_type t
, o
= isl_dim_param
;
890 ids
= isl_calloc_array(dim
->ctx
, isl_id
*,
891 dim
->nparam
+ dim
->n_in
+ dim
->n_out
+ n
);
895 s
[isl_dim_param
- o
] = dim
->nparam
;
896 s
[isl_dim_in
- o
] = dim
->n_in
;
897 s
[isl_dim_out
- o
] = dim
->n_out
;
898 for (t
= isl_dim_param
; t
<= isl_dim_out
; ++t
) {
900 get_ids(dim
, t
, 0, s
[t
- o
], ids
+ off
);
903 get_ids(dim
, t
, 0, pos
, ids
+ off
);
905 get_ids(dim
, t
, pos
, s
[t
- o
] - pos
, ids
+ off
);
906 off
+= s
[t
- o
] - pos
;
911 dim
->n_id
= dim
->nparam
+ dim
->n_in
+ dim
->n_out
+ n
;
914 case isl_dim_param
: dim
->nparam
+= n
; break;
915 case isl_dim_in
: dim
->n_in
+= n
; break;
916 case isl_dim_out
: dim
->n_out
+= n
; break;
919 dim
= isl_space_reset(dim
, type
);
921 if (type
== isl_dim_param
) {
922 if (dim
&& dim
->nested
[0] &&
923 !(dim
->nested
[0] = isl_space_insert_dims(dim
->nested
[0],
924 isl_dim_param
, pos
, n
)))
926 if (dim
&& dim
->nested
[1] &&
927 !(dim
->nested
[1] = isl_space_insert_dims(dim
->nested
[1],
928 isl_dim_param
, pos
, n
)))
938 __isl_give isl_space
*isl_space_move_dims(__isl_take isl_space
*dim
,
939 enum isl_dim_type dst_type
, unsigned dst_pos
,
940 enum isl_dim_type src_type
, unsigned src_pos
, unsigned n
)
947 dim
= isl_space_reset(dim
, src_type
);
948 return isl_space_reset(dim
, dst_type
);
951 isl_assert(dim
->ctx
, src_pos
+ n
<= isl_space_dim(dim
, src_type
),
954 if (dst_type
== src_type
&& dst_pos
== src_pos
)
957 isl_assert(dim
->ctx
, dst_type
!= src_type
, goto error
);
959 dim
= isl_space_reset(dim
, src_type
);
960 dim
= isl_space_reset(dim
, dst_type
);
962 dim
= isl_space_cow(dim
);
968 enum isl_dim_type t
, o
= isl_dim_param
;
971 ids
= isl_calloc_array(dim
->ctx
, isl_id
*,
972 dim
->nparam
+ dim
->n_in
+ dim
->n_out
);
976 s
[isl_dim_param
- o
] = dim
->nparam
;
977 s
[isl_dim_in
- o
] = dim
->n_in
;
978 s
[isl_dim_out
- o
] = dim
->n_out
;
979 for (t
= isl_dim_param
; t
<= isl_dim_out
; ++t
) {
981 get_ids(dim
, t
, 0, dst_pos
, ids
+ off
);
983 get_ids(dim
, src_type
, src_pos
, n
, ids
+ off
);
985 get_ids(dim
, t
, dst_pos
, s
[t
- o
] - dst_pos
,
987 off
+= s
[t
- o
] - dst_pos
;
988 } else if (t
== src_type
) {
989 get_ids(dim
, t
, 0, src_pos
, ids
+ off
);
991 get_ids(dim
, t
, src_pos
+ n
,
992 s
[t
- o
] - src_pos
- n
, ids
+ off
);
993 off
+= s
[t
- o
] - src_pos
- n
;
995 get_ids(dim
, t
, 0, s
[t
- o
], ids
+ off
);
1001 dim
->n_id
= dim
->nparam
+ dim
->n_in
+ dim
->n_out
;
1005 case isl_dim_param
: dim
->nparam
+= n
; break;
1006 case isl_dim_in
: dim
->n_in
+= n
; break;
1007 case isl_dim_out
: dim
->n_out
+= n
; break;
1012 case isl_dim_param
: dim
->nparam
-= n
; break;
1013 case isl_dim_in
: dim
->n_in
-= n
; break;
1014 case isl_dim_out
: dim
->n_out
-= n
; break;
1018 if (dst_type
!= isl_dim_param
&& src_type
!= isl_dim_param
)
1021 for (i
= 0; i
< 2; ++i
) {
1022 if (!dim
->nested
[i
])
1024 dim
->nested
[i
] = isl_space_replace(dim
->nested
[i
],
1025 isl_dim_param
, dim
);
1026 if (!dim
->nested
[i
])
1032 isl_space_free(dim
);
1036 __isl_give isl_space
*isl_space_join(__isl_take isl_space
*left
,
1037 __isl_take isl_space
*right
)
1041 if (!left
|| !right
)
1044 isl_assert(left
->ctx
, match(left
, isl_dim_param
, right
, isl_dim_param
),
1046 isl_assert(left
->ctx
,
1047 isl_space_tuple_match(left
, isl_dim_out
, right
, isl_dim_in
),
1050 dim
= isl_space_alloc(left
->ctx
, left
->nparam
, left
->n_in
, right
->n_out
);
1054 dim
= copy_ids(dim
, isl_dim_param
, 0, left
, isl_dim_param
);
1055 dim
= copy_ids(dim
, isl_dim_in
, 0, left
, isl_dim_in
);
1056 dim
= copy_ids(dim
, isl_dim_out
, 0, right
, isl_dim_out
);
1058 if (dim
&& left
->tuple_id
[0] &&
1059 !(dim
->tuple_id
[0] = isl_id_copy(left
->tuple_id
[0])))
1061 if (dim
&& right
->tuple_id
[1] &&
1062 !(dim
->tuple_id
[1] = isl_id_copy(right
->tuple_id
[1])))
1064 if (dim
&& left
->nested
[0] &&
1065 !(dim
->nested
[0] = isl_space_copy(left
->nested
[0])))
1067 if (dim
&& right
->nested
[1] &&
1068 !(dim
->nested
[1] = isl_space_copy(right
->nested
[1])))
1071 isl_space_free(left
);
1072 isl_space_free(right
);
1076 isl_space_free(left
);
1077 isl_space_free(right
);
1081 __isl_give isl_space
*isl_space_product(__isl_take isl_space
*left
,
1082 __isl_take isl_space
*right
)
1084 isl_space
*dom1
, *dom2
, *nest1
, *nest2
;
1086 if (!left
|| !right
)
1089 isl_assert(left
->ctx
, match(left
, isl_dim_param
, right
, isl_dim_param
),
1092 dom1
= isl_space_domain(isl_space_copy(left
));
1093 dom2
= isl_space_domain(isl_space_copy(right
));
1094 nest1
= isl_space_wrap(isl_space_join(isl_space_reverse(dom1
), dom2
));
1096 dom1
= isl_space_range(left
);
1097 dom2
= isl_space_range(right
);
1098 nest2
= isl_space_wrap(isl_space_join(isl_space_reverse(dom1
), dom2
));
1100 return isl_space_join(isl_space_reverse(nest1
), nest2
);
1102 isl_space_free(left
);
1103 isl_space_free(right
);
1107 /* Given two spaces { A -> C } and { B -> C }, construct the space
1110 __isl_give isl_space
*isl_space_domain_product(__isl_take isl_space
*left
,
1111 __isl_take isl_space
*right
)
1113 isl_space
*ran
, *dom1
, *dom2
, *nest
;
1115 if (!left
|| !right
)
1118 if (!match(left
, isl_dim_param
, right
, isl_dim_param
))
1119 isl_die(left
->ctx
, isl_error_invalid
,
1120 "parameters need to match", goto error
);
1121 if (!isl_space_tuple_match(left
, isl_dim_out
, right
, isl_dim_out
))
1122 isl_die(left
->ctx
, isl_error_invalid
,
1123 "ranges need to match", goto error
);
1125 ran
= isl_space_range(isl_space_copy(left
));
1127 dom1
= isl_space_domain(left
);
1128 dom2
= isl_space_domain(right
);
1129 nest
= isl_space_wrap(isl_space_join(isl_space_reverse(dom1
), dom2
));
1131 return isl_space_join(isl_space_reverse(nest
), ran
);
1133 isl_space_free(left
);
1134 isl_space_free(right
);
1138 __isl_give isl_space
*isl_space_range_product(__isl_take isl_space
*left
,
1139 __isl_take isl_space
*right
)
1141 isl_space
*dom
, *ran1
, *ran2
, *nest
;
1143 if (!left
|| !right
)
1146 isl_assert(left
->ctx
, match(left
, isl_dim_param
, right
, isl_dim_param
),
1148 if (!isl_space_tuple_match(left
, isl_dim_in
, right
, isl_dim_in
))
1149 isl_die(left
->ctx
, isl_error_invalid
,
1150 "domains need to match", goto error
);
1152 dom
= isl_space_domain(isl_space_copy(left
));
1154 ran1
= isl_space_range(left
);
1155 ran2
= isl_space_range(right
);
1156 nest
= isl_space_wrap(isl_space_join(isl_space_reverse(ran1
), ran2
));
1158 return isl_space_join(isl_space_reverse(dom
), nest
);
1160 isl_space_free(left
);
1161 isl_space_free(right
);
1165 __isl_give isl_space
*isl_space_map_from_set(__isl_take isl_space
*dim
)
1168 isl_id
**ids
= NULL
;
1172 ctx
= isl_space_get_ctx(dim
);
1173 if (!isl_space_is_set(dim
))
1174 isl_die(ctx
, isl_error_invalid
, "not a set space", goto error
);
1175 dim
= isl_space_cow(dim
);
1179 ids
= isl_calloc_array(dim
->ctx
, isl_id
*,
1180 dim
->nparam
+ dim
->n_out
+ dim
->n_out
);
1183 get_ids(dim
, isl_dim_param
, 0, dim
->nparam
, ids
);
1184 get_ids(dim
, isl_dim_out
, 0, dim
->n_out
, ids
+ dim
->nparam
);
1186 dim
->n_in
= dim
->n_out
;
1190 dim
->n_id
= dim
->nparam
+ dim
->n_out
+ dim
->n_out
;
1191 dim
= copy_ids(dim
, isl_dim_out
, 0, dim
, isl_dim_in
);
1193 isl_id_free(dim
->tuple_id
[0]);
1194 dim
->tuple_id
[0] = isl_id_copy(dim
->tuple_id
[1]);
1195 isl_space_free(dim
->nested
[0]);
1196 dim
->nested
[0] = isl_space_copy(dim
->nested
[1]);
1199 isl_space_free(dim
);
1203 __isl_give isl_space
*isl_space_map_from_domain_and_range(
1204 __isl_take isl_space
*domain
, __isl_take isl_space
*range
)
1206 if (!domain
|| !range
)
1208 if (!isl_space_is_set(domain
))
1209 isl_die(isl_space_get_ctx(domain
), isl_error_invalid
,
1210 "domain is not a set space", goto error
);
1211 if (!isl_space_is_set(range
))
1212 isl_die(isl_space_get_ctx(range
), isl_error_invalid
,
1213 "range is not a set space", goto error
);
1214 return isl_space_join(isl_space_reverse(domain
), range
);
1216 isl_space_free(domain
);
1217 isl_space_free(range
);
1221 static __isl_give isl_space
*set_ids(__isl_take isl_space
*dim
,
1222 enum isl_dim_type type
,
1223 unsigned first
, unsigned n
, __isl_take isl_id
**ids
)
1227 for (i
= 0; i
< n
; ++i
)
1228 dim
= set_id(dim
, type
, first
+ i
, ids
[i
]);
1233 __isl_give isl_space
*isl_space_reverse(__isl_take isl_space
*dim
)
1237 isl_id
**ids
= NULL
;
1242 if (match(dim
, isl_dim_in
, dim
, isl_dim_out
))
1245 dim
= isl_space_cow(dim
);
1249 id
= dim
->tuple_id
[0];
1250 dim
->tuple_id
[0] = dim
->tuple_id
[1];
1251 dim
->tuple_id
[1] = id
;
1253 nested
= dim
->nested
[0];
1254 dim
->nested
[0] = dim
->nested
[1];
1255 dim
->nested
[1] = nested
;
1258 int n_id
= dim
->n_in
+ dim
->n_out
;
1259 ids
= isl_alloc_array(dim
->ctx
, isl_id
*, n_id
);
1262 get_ids(dim
, isl_dim_in
, 0, dim
->n_in
, ids
);
1263 get_ids(dim
, isl_dim_out
, 0, dim
->n_out
, ids
+ dim
->n_in
);
1267 dim
->n_in
= dim
->n_out
;
1271 dim
= set_ids(dim
, isl_dim_out
, 0, dim
->n_out
, ids
);
1272 dim
= set_ids(dim
, isl_dim_in
, 0, dim
->n_in
, ids
+ dim
->n_out
);
1279 isl_space_free(dim
);
1283 __isl_give isl_space
*isl_space_drop_dims(__isl_take isl_space
*dim
,
1284 enum isl_dim_type type
, unsigned first
, unsigned num
)
1292 return isl_space_reset(dim
, type
);
1294 if (!valid_dim_type(type
))
1295 isl_die(dim
->ctx
, isl_error_invalid
,
1296 "cannot drop dimensions of specified type", goto error
);
1298 isl_assert(dim
->ctx
, first
+ num
<= n(dim
, type
), goto error
);
1299 dim
= isl_space_cow(dim
);
1303 dim
= extend_ids(dim
);
1306 for (i
= 0; i
< num
; ++i
)
1307 isl_id_free(get_id(dim
, type
, first
+ i
));
1308 for (i
= first
+num
; i
< n(dim
, type
); ++i
)
1309 set_id(dim
, type
, i
- num
, get_id(dim
, type
, i
));
1312 get_ids(dim
, isl_dim_in
, 0, dim
->n_in
,
1313 dim
->ids
+ offset(dim
, isl_dim_in
) - num
);
1315 get_ids(dim
, isl_dim_out
, 0, dim
->n_out
,
1316 dim
->ids
+ offset(dim
, isl_dim_out
) - num
);
1323 case isl_dim_param
: dim
->nparam
-= num
; break;
1324 case isl_dim_in
: dim
->n_in
-= num
; break;
1325 case isl_dim_out
: dim
->n_out
-= num
; break;
1328 dim
= isl_space_reset(dim
, type
);
1329 if (type
== isl_dim_param
) {
1330 if (dim
&& dim
->nested
[0] &&
1331 !(dim
->nested
[0] = isl_space_drop_dims(dim
->nested
[0],
1332 isl_dim_param
, first
, num
)))
1334 if (dim
&& dim
->nested
[1] &&
1335 !(dim
->nested
[1] = isl_space_drop_dims(dim
->nested
[1],
1336 isl_dim_param
, first
, num
)))
1341 isl_space_free(dim
);
1345 __isl_give isl_space
*isl_space_drop_inputs(__isl_take isl_space
*dim
,
1346 unsigned first
, unsigned n
)
1350 return isl_space_drop_dims(dim
, isl_dim_in
, first
, n
);
1353 __isl_give isl_space
*isl_space_drop_outputs(__isl_take isl_space
*dim
,
1354 unsigned first
, unsigned n
)
1358 return isl_space_drop_dims(dim
, isl_dim_out
, first
, n
);
1361 __isl_give isl_space
*isl_space_domain(__isl_take isl_space
*dim
)
1365 dim
= isl_space_drop_outputs(dim
, 0, dim
->n_out
);
1366 dim
= isl_space_reverse(dim
);
1367 dim
= mark_as_set(dim
);
1371 __isl_give isl_space
*isl_space_from_domain(__isl_take isl_space
*dim
)
1375 if (!isl_space_is_set(dim
))
1376 isl_die(isl_space_get_ctx(dim
), isl_error_invalid
,
1377 "not a set space", goto error
);
1378 dim
= isl_space_reverse(dim
);
1379 dim
= isl_space_reset(dim
, isl_dim_out
);
1382 isl_space_free(dim
);
1386 __isl_give isl_space
*isl_space_range(__isl_take isl_space
*dim
)
1390 dim
= isl_space_drop_inputs(dim
, 0, dim
->n_in
);
1391 dim
= mark_as_set(dim
);
1395 __isl_give isl_space
*isl_space_from_range(__isl_take isl_space
*dim
)
1399 if (!isl_space_is_set(dim
))
1400 isl_die(isl_space_get_ctx(dim
), isl_error_invalid
,
1401 "not a set space", goto error
);
1402 return isl_space_reset(dim
, isl_dim_in
);
1404 isl_space_free(dim
);
1408 /* Given a map space A -> B, return the map space [A -> B] -> A.
1410 __isl_give isl_space
*isl_space_domain_map(__isl_take isl_space
*space
)
1414 domain
= isl_space_from_range(isl_space_domain(isl_space_copy(space
)));
1415 space
= isl_space_from_domain(isl_space_wrap(space
));
1416 space
= isl_space_join(space
, domain
);
1421 /* Given a map space A -> B, return the map space [A -> B] -> B.
1423 __isl_give isl_space
*isl_space_range_map(__isl_take isl_space
*space
)
1427 range
= isl_space_from_range(isl_space_range(isl_space_copy(space
)));
1428 space
= isl_space_from_domain(isl_space_wrap(space
));
1429 space
= isl_space_join(space
, range
);
1434 __isl_give isl_space
*isl_space_params(__isl_take isl_space
*space
)
1436 if (isl_space_is_params(space
))
1438 space
= isl_space_drop_dims(space
,
1439 isl_dim_in
, 0, isl_space_dim(space
, isl_dim_in
));
1440 space
= isl_space_drop_dims(space
,
1441 isl_dim_out
, 0, isl_space_dim(space
, isl_dim_out
));
1442 space
= mark_as_params(space
);
1446 __isl_give isl_space
*isl_space_set_from_params(__isl_take isl_space
*space
)
1450 if (!isl_space_is_params(space
))
1451 isl_die(isl_space_get_ctx(space
), isl_error_invalid
,
1452 "not a parameter space", goto error
);
1453 return isl_space_reset(space
, isl_dim_set
);
1455 isl_space_free(space
);
1459 __isl_give isl_space
*isl_space_as_set_space(__isl_take isl_space
*dim
)
1461 dim
= isl_space_cow(dim
);
1465 dim
->n_out
+= dim
->n_in
;
1467 dim
= isl_space_reset(dim
, isl_dim_in
);
1468 dim
= isl_space_reset(dim
, isl_dim_out
);
1473 __isl_give isl_space
*isl_space_underlying(__isl_take isl_space
*dim
,
1481 dim
->nparam
== 0 && dim
->n_in
== 0 && dim
->n_id
== 0)
1482 return isl_space_reset(isl_space_reset(dim
, isl_dim_in
), isl_dim_out
);
1483 dim
= isl_space_cow(dim
);
1486 dim
->n_out
+= dim
->nparam
+ dim
->n_in
+ n_div
;
1490 for (i
= 0; i
< dim
->n_id
; ++i
)
1491 isl_id_free(get_id(dim
, isl_dim_out
, i
));
1493 dim
= isl_space_reset(dim
, isl_dim_in
);
1494 dim
= isl_space_reset(dim
, isl_dim_out
);
1499 /* Are the two spaces the same, including positions and names of parameters?
1501 int isl_space_is_equal(__isl_keep isl_space
*dim1
, __isl_keep isl_space
*dim2
)
1507 return match(dim1
, isl_dim_param
, dim2
, isl_dim_param
) &&
1508 isl_space_tuple_match(dim1
, isl_dim_in
, dim2
, isl_dim_in
) &&
1509 isl_space_tuple_match(dim1
, isl_dim_out
, dim2
, isl_dim_out
);
1512 /* Is space1 equal to the domain of space2?
1514 * In the internal version we also allow space2 to be the space of a set,
1515 * provided space1 is a parameter space.
1517 int isl_space_is_domain_internal(__isl_keep isl_space
*space1
,
1518 __isl_keep isl_space
*space2
)
1520 if (!space1
|| !space2
)
1522 if (!isl_space_is_set(space1
))
1524 return match(space1
, isl_dim_param
, space2
, isl_dim_param
) &&
1525 isl_space_tuple_match(space1
, isl_dim_set
, space2
, isl_dim_in
);
1528 /* Is space1 equal to the domain of space2?
1530 int isl_space_is_domain(__isl_keep isl_space
*space1
,
1531 __isl_keep isl_space
*space2
)
1535 if (!isl_space_is_map(space2
))
1537 return isl_space_is_domain_internal(space1
, space2
);
1540 /* Is space1 equal to the range of space2?
1542 * In the internal version, space2 is allowed to be the space of a set,
1543 * in which case it should be equal to space1.
1545 int isl_space_is_range_internal(__isl_keep isl_space
*space1
,
1546 __isl_keep isl_space
*space2
)
1548 if (!space1
|| !space2
)
1550 if (!isl_space_is_set(space1
))
1552 return match(space1
, isl_dim_param
, space2
, isl_dim_param
) &&
1553 isl_space_tuple_match(space1
, isl_dim_set
, space2
, isl_dim_out
);
1556 /* Is space1 equal to the range of space2?
1558 int isl_space_is_range(__isl_keep isl_space
*space1
,
1559 __isl_keep isl_space
*space2
)
1563 if (!isl_space_is_map(space2
))
1565 return isl_space_is_range_internal(space1
, space2
);
1568 int isl_space_compatible(__isl_keep isl_space
*dim1
,
1569 __isl_keep isl_space
*dim2
)
1571 return dim1
->nparam
== dim2
->nparam
&&
1572 dim1
->n_in
+ dim1
->n_out
== dim2
->n_in
+ dim2
->n_out
;
1575 static uint32_t isl_hash_dim(uint32_t hash
, __isl_keep isl_space
*dim
)
1583 isl_hash_byte(hash
, dim
->nparam
% 256);
1584 isl_hash_byte(hash
, dim
->n_in
% 256);
1585 isl_hash_byte(hash
, dim
->n_out
% 256);
1587 for (i
= 0; i
< dim
->nparam
; ++i
) {
1588 id
= get_id(dim
, isl_dim_param
, i
);
1589 hash
= isl_hash_id(hash
, id
);
1592 id
= tuple_id(dim
, isl_dim_in
);
1593 hash
= isl_hash_id(hash
, id
);
1594 id
= tuple_id(dim
, isl_dim_out
);
1595 hash
= isl_hash_id(hash
, id
);
1597 hash
= isl_hash_dim(hash
, dim
->nested
[0]);
1598 hash
= isl_hash_dim(hash
, dim
->nested
[1]);
1603 uint32_t isl_space_get_hash(__isl_keep isl_space
*dim
)
1610 hash
= isl_hash_init();
1611 hash
= isl_hash_dim(hash
, dim
);
1616 int isl_space_is_wrapping(__isl_keep isl_space
*dim
)
1621 if (!isl_space_is_set(dim
))
1624 return dim
->nested
[1] != NULL
;
1627 __isl_give isl_space
*isl_space_wrap(__isl_take isl_space
*dim
)
1634 wrap
= isl_space_set_alloc(dim
->ctx
,
1635 dim
->nparam
, dim
->n_in
+ dim
->n_out
);
1637 wrap
= copy_ids(wrap
, isl_dim_param
, 0, dim
, isl_dim_param
);
1638 wrap
= copy_ids(wrap
, isl_dim_set
, 0, dim
, isl_dim_in
);
1639 wrap
= copy_ids(wrap
, isl_dim_set
, dim
->n_in
, dim
, isl_dim_out
);
1644 wrap
->nested
[1] = dim
;
1648 isl_space_free(dim
);
1652 __isl_give isl_space
*isl_space_unwrap(__isl_take isl_space
*dim
)
1659 if (!isl_space_is_wrapping(dim
))
1660 isl_die(dim
->ctx
, isl_error_invalid
, "not a wrapping space",
1663 unwrap
= isl_space_copy(dim
->nested
[1]);
1664 isl_space_free(dim
);
1668 isl_space_free(dim
);
1672 int isl_space_is_named_or_nested(__isl_keep isl_space
*dim
, enum isl_dim_type type
)
1674 if (type
!= isl_dim_in
&& type
!= isl_dim_out
)
1678 if (dim
->tuple_id
[type
- isl_dim_in
])
1680 if (dim
->nested
[type
- isl_dim_in
])
1685 int isl_space_may_be_set(__isl_keep isl_space
*dim
)
1689 if (isl_space_is_set(dim
))
1691 if (isl_space_dim(dim
, isl_dim_in
) != 0)
1693 if (isl_space_is_named_or_nested(dim
, isl_dim_in
))
1698 __isl_give isl_space
*isl_space_reset(__isl_take isl_space
*dim
,
1699 enum isl_dim_type type
)
1701 if (!isl_space_is_named_or_nested(dim
, type
))
1704 dim
= isl_space_cow(dim
);
1708 isl_id_free(dim
->tuple_id
[type
- isl_dim_in
]);
1709 dim
->tuple_id
[type
- isl_dim_in
] = NULL
;
1710 isl_space_free(dim
->nested
[type
- isl_dim_in
]);
1711 dim
->nested
[type
- isl_dim_in
] = NULL
;
1716 __isl_give isl_space
*isl_space_flatten(__isl_take isl_space
*dim
)
1720 if (!dim
->nested
[0] && !dim
->nested
[1])
1724 dim
= isl_space_reset(dim
, isl_dim_in
);
1725 if (dim
&& dim
->nested
[1])
1726 dim
= isl_space_reset(dim
, isl_dim_out
);
1731 __isl_give isl_space
*isl_space_flatten_domain(__isl_take isl_space
*dim
)
1735 if (!dim
->nested
[0])
1738 return isl_space_reset(dim
, isl_dim_in
);
1741 __isl_give isl_space
*isl_space_flatten_range(__isl_take isl_space
*dim
)
1745 if (!dim
->nested
[1])
1748 return isl_space_reset(dim
, isl_dim_out
);
1751 /* Replace the dimensions of the given type of dst by those of src.
1753 __isl_give isl_space
*isl_space_replace(__isl_take isl_space
*dst
,
1754 enum isl_dim_type type
, __isl_keep isl_space
*src
)
1756 dst
= isl_space_cow(dst
);
1761 dst
= isl_space_drop_dims(dst
, type
, 0, isl_space_dim(dst
, type
));
1762 dst
= isl_space_add_dims(dst
, type
, isl_space_dim(src
, type
));
1763 dst
= copy_ids(dst
, type
, 0, src
, type
);
1765 if (dst
&& type
== isl_dim_param
) {
1767 for (i
= 0; i
<= 1; ++i
) {
1768 if (!dst
->nested
[i
])
1770 dst
->nested
[i
] = isl_space_replace(dst
->nested
[i
],
1772 if (!dst
->nested
[i
])
1779 isl_space_free(dst
);
1783 /* Given a dimension specification "dim" of a set, create a dimension
1784 * specification for the lift of the set. In particular, the result
1785 * is of the form [dim -> local[..]], with n_local variables in the
1786 * range of the wrapped map.
1788 __isl_give isl_space
*isl_space_lift(__isl_take isl_space
*dim
, unsigned n_local
)
1790 isl_space
*local_dim
;
1795 local_dim
= isl_space_dup(dim
);
1796 local_dim
= isl_space_drop_dims(local_dim
, isl_dim_set
, 0, dim
->n_out
);
1797 local_dim
= isl_space_add_dims(local_dim
, isl_dim_set
, n_local
);
1798 local_dim
= isl_space_set_tuple_name(local_dim
, isl_dim_set
, "local");
1799 dim
= isl_space_join(isl_space_from_domain(dim
),
1800 isl_space_from_range(local_dim
));
1801 dim
= isl_space_wrap(dim
);
1802 dim
= isl_space_set_tuple_name(dim
, isl_dim_set
, "lifted");
1807 int isl_space_can_zip(__isl_keep isl_space
*dim
)
1812 return dim
->nested
[0] && dim
->nested
[1];
1815 __isl_give isl_space
*isl_space_zip(__isl_take isl_space
*dim
)
1817 isl_space
*dom
, *ran
;
1818 isl_space
*dom_dom
, *dom_ran
, *ran_dom
, *ran_ran
;
1820 if (!isl_space_can_zip(dim
))
1821 isl_die(dim
->ctx
, isl_error_invalid
, "dim cannot be zipped",
1826 dom
= isl_space_unwrap(isl_space_domain(isl_space_copy(dim
)));
1827 ran
= isl_space_unwrap(isl_space_range(dim
));
1828 dom_dom
= isl_space_domain(isl_space_copy(dom
));
1829 dom_ran
= isl_space_range(dom
);
1830 ran_dom
= isl_space_domain(isl_space_copy(ran
));
1831 ran_ran
= isl_space_range(ran
);
1832 dom
= isl_space_join(isl_space_from_domain(dom_dom
),
1833 isl_space_from_range(ran_dom
));
1834 ran
= isl_space_join(isl_space_from_domain(dom_ran
),
1835 isl_space_from_range(ran_ran
));
1836 return isl_space_join(isl_space_from_domain(isl_space_wrap(dom
)),
1837 isl_space_from_range(isl_space_wrap(ran
)));
1839 isl_space_free(dim
);
1843 /* Can we apply isl_space_curry to "space"?
1844 * That is, does it have a nested relation in its domain?
1846 int isl_space_can_curry(__isl_keep isl_space
*space
)
1851 return !!space
->nested
[0];
1854 /* Given a space (A -> B) -> C, return the corresponding space
1857 __isl_give isl_space
*isl_space_curry(__isl_take isl_space
*space
)
1859 isl_space
*dom
, *ran
;
1860 isl_space
*dom_dom
, *dom_ran
;
1865 if (!isl_space_can_curry(space
))
1866 isl_die(space
->ctx
, isl_error_invalid
,
1867 "space cannot be curried", goto error
);
1869 dom
= isl_space_unwrap(isl_space_domain(isl_space_copy(space
)));
1870 ran
= isl_space_range(space
);
1871 dom_dom
= isl_space_domain(isl_space_copy(dom
));
1872 dom_ran
= isl_space_range(dom
);
1873 ran
= isl_space_join(isl_space_from_domain(dom_ran
),
1874 isl_space_from_range(ran
));
1875 return isl_space_join(isl_space_from_domain(dom_dom
),
1876 isl_space_from_range(isl_space_wrap(ran
)));
1878 isl_space_free(space
);
1882 /* Can we apply isl_space_uncurry to "space"?
1883 * That is, does it have a nested relation in its range?
1885 int isl_space_can_uncurry(__isl_keep isl_space
*space
)
1890 return !!space
->nested
[1];
1893 /* Given a space A -> (B -> C), return the corresponding space
1896 __isl_give isl_space
*isl_space_uncurry(__isl_take isl_space
*space
)
1898 isl_space
*dom
, *ran
;
1899 isl_space
*ran_dom
, *ran_ran
;
1904 if (!isl_space_can_uncurry(space
))
1905 isl_die(space
->ctx
, isl_error_invalid
,
1906 "space cannot be uncurried",
1907 return isl_space_free(space
));
1909 dom
= isl_space_domain(isl_space_copy(space
));
1910 ran
= isl_space_unwrap(isl_space_range(space
));
1911 ran_dom
= isl_space_domain(isl_space_copy(ran
));
1912 ran_ran
= isl_space_range(ran
);
1913 dom
= isl_space_join(isl_space_from_domain(dom
),
1914 isl_space_from_range(ran_dom
));
1915 return isl_space_join(isl_space_from_domain(isl_space_wrap(dom
)),
1916 isl_space_from_range(ran_ran
));
1919 int isl_space_has_named_params(__isl_keep isl_space
*dim
)
1926 if (dim
->nparam
== 0)
1928 off
= isl_space_offset(dim
, isl_dim_param
);
1929 if (off
+ dim
->nparam
> dim
->n_id
)
1931 for (i
= 0; i
< dim
->nparam
; ++i
)
1932 if (!dim
->ids
[off
+ i
])
1937 /* Align the initial parameters of dim1 to match the order in dim2.
1939 __isl_give isl_space
*isl_space_align_params(__isl_take isl_space
*dim1
,
1940 __isl_take isl_space
*dim2
)
1942 isl_reordering
*exp
;
1944 if (!isl_space_has_named_params(dim1
) || !isl_space_has_named_params(dim2
))
1945 isl_die(isl_space_get_ctx(dim1
), isl_error_invalid
,
1946 "parameter alignment requires named parameters",
1949 dim2
= isl_space_params(dim2
);
1950 exp
= isl_parameter_alignment_reordering(dim1
, dim2
);
1951 exp
= isl_reordering_extend_space(exp
, dim1
);
1952 isl_space_free(dim2
);
1955 dim1
= isl_space_copy(exp
->dim
);
1956 isl_reordering_free(exp
);
1959 isl_space_free(dim1
);
1960 isl_space_free(dim2
);
1964 /* Given the space of set (domain), construct a space for a map
1965 * with as domain the given space and as range the range of "model".
1967 __isl_give isl_space
*isl_space_extend_domain_with_range(
1968 __isl_take isl_space
*space
, __isl_take isl_space
*model
)
1973 space
= isl_space_from_domain(space
);
1974 space
= isl_space_add_dims(space
, isl_dim_out
,
1975 isl_space_dim(model
, isl_dim_out
));
1976 if (isl_space_has_tuple_id(model
, isl_dim_out
))
1977 space
= isl_space_set_tuple_id(space
, isl_dim_out
,
1978 isl_space_get_tuple_id(model
, isl_dim_out
));
1981 if (model
->nested
[1]) {
1982 isl_space
*nested
= isl_space_copy(model
->nested
[1]);
1983 int n_nested
, n_space
;
1984 nested
= isl_space_align_params(nested
, isl_space_copy(space
));
1985 n_nested
= isl_space_dim(nested
, isl_dim_param
);
1986 n_space
= isl_space_dim(space
, isl_dim_param
);
1987 if (n_nested
> n_space
)
1988 nested
= isl_space_drop_dims(nested
, isl_dim_param
,
1989 n_space
, n_nested
- n_space
);
1992 space
->nested
[1] = nested
;
1994 isl_space_free(model
);
1997 isl_space_free(model
);
1998 isl_space_free(space
);