Line data Source code
1 : /*
2 : * Copyright 2008-2009 Katholieke Universiteit Leuven
3 : * Copyright 2010 INRIA Saclay
4 : * Copyright 2013-2014 Ecole Normale Superieure
5 : *
6 : * Use of this software is governed by the MIT license
7 : *
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
13 : */
14 :
15 : #include <stdlib.h>
16 : #include <string.h>
17 : #include <isl_space_private.h>
18 : #include <isl_id_private.h>
19 : #include <isl_reordering.h>
20 :
21 112959 : isl_ctx *isl_space_get_ctx(__isl_keep isl_space *dim)
22 : {
23 112959 : return dim ? dim->ctx : NULL;
24 : }
25 :
26 13928997624 : __isl_give isl_space *isl_space_alloc(isl_ctx *ctx,
27 : unsigned nparam, unsigned n_in, unsigned n_out)
28 : {
29 : isl_space *dim;
30 :
31 13928997624 : dim = isl_alloc_type(ctx, struct isl_space);
32 13928997624 : if (!dim)
33 0 : return NULL;
34 :
35 13928997624 : dim->ctx = ctx;
36 13928997624 : isl_ctx_ref(ctx);
37 13928997624 : dim->ref = 1;
38 13928997624 : dim->nparam = nparam;
39 13928997624 : dim->n_in = n_in;
40 13928997624 : dim->n_out = n_out;
41 :
42 13928997624 : dim->tuple_id[0] = NULL;
43 13928997624 : dim->tuple_id[1] = NULL;
44 :
45 13928997624 : dim->nested[0] = NULL;
46 13928997624 : dim->nested[1] = NULL;
47 :
48 13928997624 : dim->n_id = 0;
49 13928997624 : dim->ids = NULL;
50 :
51 13928997624 : return dim;
52 : }
53 :
54 : /* Mark the space as being that of a set, by setting the domain tuple
55 : * to isl_id_none.
56 : */
57 1973577593 : static __isl_give isl_space *mark_as_set(__isl_take isl_space *space)
58 : {
59 1973577593 : space = isl_space_cow(space);
60 1973577593 : if (!space)
61 0 : return NULL;
62 1973577593 : space = isl_space_set_tuple_id(space, isl_dim_in, &isl_id_none);
63 1973577593 : return space;
64 : }
65 :
66 : /* Is the space that of a set?
67 : */
68 12664439 : isl_bool isl_space_is_set(__isl_keep isl_space *space)
69 : {
70 12664439 : if (!space)
71 0 : return isl_bool_error;
72 12664439 : if (space->n_in != 0 || space->nested[0])
73 0 : return isl_bool_false;
74 12664439 : if (space->tuple_id[0] != &isl_id_none)
75 0 : return isl_bool_false;
76 12664439 : return isl_bool_true;
77 : }
78 :
79 : /* Is the given space that of a map?
80 : */
81 0 : isl_bool isl_space_is_map(__isl_keep isl_space *space)
82 : {
83 0 : if (!space)
84 0 : return isl_bool_error;
85 0 : return space->tuple_id[0] != &isl_id_none &&
86 0 : space->tuple_id[1] != &isl_id_none;
87 : }
88 :
89 1973577593 : __isl_give isl_space *isl_space_set_alloc(isl_ctx *ctx,
90 : unsigned nparam, unsigned dim)
91 : {
92 : isl_space *space;
93 1973577593 : space = isl_space_alloc(ctx, nparam, 0, dim);
94 1973577593 : space = mark_as_set(space);
95 1973577593 : return space;
96 : }
97 :
98 : /* Mark the space as being that of a parameter domain, by setting
99 : * both tuples to isl_id_none.
100 : */
101 0 : static __isl_give isl_space *mark_as_params(isl_space *space)
102 : {
103 0 : if (!space)
104 0 : return NULL;
105 0 : space = isl_space_set_tuple_id(space, isl_dim_in, &isl_id_none);
106 0 : space = isl_space_set_tuple_id(space, isl_dim_out, &isl_id_none);
107 0 : return space;
108 : }
109 :
110 : /* Is the space that of a parameter domain?
111 : */
112 225918 : isl_bool isl_space_is_params(__isl_keep isl_space *space)
113 : {
114 225918 : if (!space)
115 0 : return isl_bool_error;
116 451836 : if (space->n_in != 0 || space->nested[0] ||
117 225918 : space->n_out != 0 || space->nested[1])
118 225918 : return isl_bool_false;
119 0 : if (space->tuple_id[0] != &isl_id_none)
120 0 : return isl_bool_false;
121 0 : if (space->tuple_id[1] != &isl_id_none)
122 0 : return isl_bool_false;
123 0 : return isl_bool_true;
124 : }
125 :
126 : /* Create a space for a parameter domain.
127 : */
128 0 : __isl_give isl_space *isl_space_params_alloc(isl_ctx *ctx, unsigned nparam)
129 : {
130 : isl_space *space;
131 0 : space = isl_space_alloc(ctx, nparam, 0, 0);
132 0 : space = mark_as_params(space);
133 0 : return space;
134 : }
135 :
136 89783096 : static unsigned global_pos(__isl_keep isl_space *dim,
137 : enum isl_dim_type type, unsigned pos)
138 : {
139 89783096 : struct isl_ctx *ctx = dim->ctx;
140 :
141 89783096 : switch (type) {
142 : case isl_dim_param:
143 0 : isl_assert(ctx, pos < dim->nparam,
144 : return isl_space_dim(dim, isl_dim_all));
145 0 : return pos;
146 : case isl_dim_in:
147 0 : isl_assert(ctx, pos < dim->n_in,
148 : return isl_space_dim(dim, isl_dim_all));
149 0 : return pos + dim->nparam;
150 : case isl_dim_out:
151 89783096 : isl_assert(ctx, pos < dim->n_out,
152 : return isl_space_dim(dim, isl_dim_all));
153 89783096 : return pos + dim->nparam + dim->n_in;
154 : default:
155 0 : isl_assert(ctx, 0, return isl_space_dim(dim, isl_dim_all));
156 : }
157 : return isl_space_dim(dim, isl_dim_all);
158 : }
159 :
160 : /* Extend length of ids array to the total number of dimensions.
161 : */
162 0 : static __isl_give isl_space *extend_ids(__isl_take isl_space *dim)
163 : {
164 : isl_id **ids;
165 : int i;
166 :
167 0 : if (isl_space_dim(dim, isl_dim_all) <= dim->n_id)
168 0 : return dim;
169 :
170 0 : if (!dim->ids) {
171 0 : dim->ids = isl_calloc_array(dim->ctx,
172 : isl_id *, isl_space_dim(dim, isl_dim_all));
173 0 : if (!dim->ids)
174 0 : goto error;
175 : } else {
176 0 : ids = isl_realloc_array(dim->ctx, dim->ids,
177 : isl_id *, isl_space_dim(dim, isl_dim_all));
178 0 : if (!ids)
179 0 : goto error;
180 0 : dim->ids = ids;
181 0 : for (i = dim->n_id; i < isl_space_dim(dim, isl_dim_all); ++i)
182 0 : dim->ids[i] = NULL;
183 : }
184 :
185 0 : dim->n_id = isl_space_dim(dim, isl_dim_all);
186 :
187 0 : return dim;
188 : error:
189 0 : isl_space_free(dim);
190 0 : return NULL;
191 : }
192 :
193 0 : 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)
195 : {
196 0 : dim = isl_space_cow(dim);
197 :
198 0 : if (!dim)
199 0 : goto error;
200 :
201 0 : pos = global_pos(dim, type, pos);
202 0 : if (pos == isl_space_dim(dim, isl_dim_all))
203 0 : goto error;
204 :
205 0 : if (pos >= dim->n_id) {
206 0 : if (!id)
207 0 : return dim;
208 0 : dim = extend_ids(dim);
209 0 : if (!dim)
210 0 : goto error;
211 : }
212 :
213 0 : dim->ids[pos] = id;
214 :
215 0 : return dim;
216 : error:
217 0 : isl_id_free(id);
218 0 : isl_space_free(dim);
219 0 : return NULL;
220 : }
221 :
222 89783096 : static __isl_keep isl_id *get_id(__isl_keep isl_space *dim,
223 : enum isl_dim_type type, unsigned pos)
224 : {
225 89783096 : if (!dim)
226 0 : return NULL;
227 :
228 89783096 : pos = global_pos(dim, type, pos);
229 89783096 : if (pos == isl_space_dim(dim, isl_dim_all))
230 0 : return NULL;
231 89783096 : if (pos >= dim->n_id)
232 89783096 : return NULL;
233 0 : return dim->ids[pos];
234 : }
235 :
236 91102969 : static unsigned offset(__isl_keep isl_space *dim, enum isl_dim_type type)
237 : {
238 91102969 : switch (type) {
239 0 : case isl_dim_param: return 0;
240 0 : case isl_dim_in: return dim->nparam;
241 91102969 : case isl_dim_out: return dim->nparam + dim->n_in;
242 0 : default: return 0;
243 : }
244 : }
245 :
246 >69719*10^7 : static unsigned n(__isl_keep isl_space *dim, enum isl_dim_type type)
247 : {
248 >69719*10^7 : switch (type) {
249 75256146426 : case isl_dim_param: return dim->nparam;
250 69511701589 : case isl_dim_in: return dim->n_in;
251 75008277992 : case isl_dim_out: return dim->n_out;
252 >47742*10^7 : case isl_dim_all: return dim->nparam + dim->n_in + dim->n_out;
253 0 : default: return 0;
254 : }
255 : }
256 :
257 >60126*10^7 : unsigned isl_space_dim(__isl_keep isl_space *dim, enum isl_dim_type type)
258 : {
259 >60126*10^7 : if (!dim)
260 0 : return 0;
261 >60126*10^7 : return n(dim, type);
262 : }
263 :
264 91102969 : unsigned isl_space_offset(__isl_keep isl_space *dim, enum isl_dim_type type)
265 : {
266 91102969 : if (!dim)
267 0 : return 0;
268 91102969 : return offset(dim, type);
269 : }
270 :
271 0 : 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)
274 : {
275 : int i;
276 : isl_id *id;
277 :
278 0 : if (!dst)
279 0 : return NULL;
280 :
281 0 : for (i = 0; i < n(src, src_type); ++i) {
282 0 : id = get_id(src, src_type, i);
283 0 : if (!id)
284 0 : continue;
285 0 : dst = set_id(dst, dst_type, offset + i, isl_id_copy(id));
286 0 : if (!dst)
287 0 : return NULL;
288 : }
289 0 : return dst;
290 : }
291 :
292 6116091432 : __isl_take isl_space *isl_space_dup(__isl_keep isl_space *dim)
293 : {
294 : isl_space *dup;
295 6116091432 : if (!dim)
296 0 : return NULL;
297 6116091432 : dup = isl_space_alloc(dim->ctx, dim->nparam, dim->n_in, dim->n_out);
298 6116091432 : if (!dup)
299 0 : return NULL;
300 6173934432 : if (dim->tuple_id[0] &&
301 57843000 : !(dup->tuple_id[0] = isl_id_copy(dim->tuple_id[0])))
302 0 : goto error;
303 6116091432 : if (dim->tuple_id[1] &&
304 0 : !(dup->tuple_id[1] = isl_id_copy(dim->tuple_id[1])))
305 0 : goto error;
306 6116091432 : if (dim->nested[0] && !(dup->nested[0] = isl_space_copy(dim->nested[0])))
307 0 : goto error;
308 6116091432 : if (dim->nested[1] && !(dup->nested[1] = isl_space_copy(dim->nested[1])))
309 0 : goto error;
310 6116091432 : if (!dim->ids)
311 6116091432 : return dup;
312 0 : dup = copy_ids(dup, isl_dim_param, 0, dim, isl_dim_param);
313 0 : dup = copy_ids(dup, isl_dim_in, 0, dim, isl_dim_in);
314 0 : dup = copy_ids(dup, isl_dim_out, 0, dim, isl_dim_out);
315 0 : return dup;
316 : error:
317 0 : isl_space_free(dup);
318 0 : return NULL;
319 : }
320 :
321 10086773820 : __isl_give isl_space *isl_space_cow(__isl_take isl_space *dim)
322 : {
323 10086773820 : if (!dim)
324 0 : return NULL;
325 :
326 10086773820 : if (dim->ref == 1)
327 3970682388 : return dim;
328 6116091432 : dim->ref--;
329 6116091432 : return isl_space_dup(dim);
330 : }
331 :
332 27555601089 : __isl_give isl_space *isl_space_copy(__isl_keep isl_space *dim)
333 : {
334 27555601089 : if (!dim)
335 0 : return NULL;
336 :
337 27555601089 : dim->ref++;
338 27555601089 : return dim;
339 : }
340 :
341 63284232570 : __isl_null isl_space *isl_space_free(__isl_take isl_space *space)
342 : {
343 : int i;
344 :
345 63284232570 : if (!space)
346 27915725289 : return NULL;
347 :
348 35368507281 : if (--space->ref > 0)
349 21439509657 : return NULL;
350 :
351 13928997624 : isl_id_free(space->tuple_id[0]);
352 13928997624 : isl_id_free(space->tuple_id[1]);
353 :
354 13928997624 : isl_space_free(space->nested[0]);
355 13928997624 : isl_space_free(space->nested[1]);
356 :
357 13928997624 : for (i = 0; i < space->n_id; ++i)
358 0 : isl_id_free(space->ids[i]);
359 13928997624 : free(space->ids);
360 13928997624 : isl_ctx_deref(space->ctx);
361 :
362 13928997624 : free(space);
363 :
364 13928997624 : return NULL;
365 : }
366 :
367 : /* Check if "s" is a valid dimension or tuple name.
368 : * We currently only forbid names that look like a number.
369 : *
370 : * s is assumed to be non-NULL.
371 : */
372 0 : static int name_ok(isl_ctx *ctx, const char *s)
373 : {
374 : char *p;
375 : long dummy;
376 :
377 0 : dummy = strtol(s, &p, 0);
378 0 : if (p != s)
379 0 : isl_die(ctx, isl_error_invalid, "name looks like a number",
380 : return 0);
381 :
382 0 : return 1;
383 : }
384 :
385 : /* Is it possible for the given dimension type to have a tuple id?
386 : */
387 0 : static int space_can_have_id(__isl_keep isl_space *space,
388 : enum isl_dim_type type)
389 : {
390 0 : if (!space)
391 0 : return 0;
392 0 : if (isl_space_is_params(space))
393 0 : isl_die(space->ctx, isl_error_invalid,
394 : "parameter spaces don't have tuple ids", return 0);
395 0 : if (isl_space_is_set(space) && type != isl_dim_set)
396 0 : isl_die(space->ctx, isl_error_invalid,
397 : "set spaces can only have a set id", return 0);
398 0 : if (type != isl_dim_in && type != isl_dim_out)
399 0 : isl_die(space->ctx, isl_error_invalid,
400 : "only input, output and set tuples can have ids",
401 : return 0);
402 :
403 0 : return 1;
404 : }
405 :
406 : /* Does the tuple have an id?
407 : */
408 0 : isl_bool isl_space_has_tuple_id(__isl_keep isl_space *dim,
409 : enum isl_dim_type type)
410 : {
411 0 : if (!space_can_have_id(dim, type))
412 0 : return isl_bool_error;
413 0 : return dim->tuple_id[type - isl_dim_in] != NULL;
414 : }
415 :
416 0 : __isl_give isl_id *isl_space_get_tuple_id(__isl_keep isl_space *dim,
417 : enum isl_dim_type type)
418 : {
419 : int has_id;
420 :
421 0 : if (!dim)
422 0 : return NULL;
423 0 : has_id = isl_space_has_tuple_id(dim, type);
424 0 : if (has_id < 0)
425 0 : return NULL;
426 0 : if (!has_id)
427 0 : isl_die(dim->ctx, isl_error_invalid,
428 : "tuple has no id", return NULL);
429 0 : return isl_id_copy(dim->tuple_id[type - isl_dim_in]);
430 : }
431 :
432 1973577593 : __isl_give isl_space *isl_space_set_tuple_id(__isl_take isl_space *dim,
433 : enum isl_dim_type type, __isl_take isl_id *id)
434 : {
435 1973577593 : dim = isl_space_cow(dim);
436 1973577593 : if (!dim || !id)
437 : goto error;
438 1973577593 : if (type != isl_dim_in && type != isl_dim_out)
439 0 : isl_die(dim->ctx, isl_error_invalid,
440 : "only input, output and set tuples can have names",
441 : goto error);
442 :
443 1973577593 : isl_id_free(dim->tuple_id[type - isl_dim_in]);
444 1973577593 : dim->tuple_id[type - isl_dim_in] = id;
445 :
446 1973577593 : return dim;
447 : error:
448 0 : isl_id_free(id);
449 0 : isl_space_free(dim);
450 0 : return NULL;
451 : }
452 :
453 0 : __isl_give isl_space *isl_space_reset_tuple_id(__isl_take isl_space *dim,
454 : enum isl_dim_type type)
455 : {
456 0 : dim = isl_space_cow(dim);
457 0 : if (!dim)
458 0 : return NULL;
459 0 : if (type != isl_dim_in && type != isl_dim_out)
460 0 : isl_die(dim->ctx, isl_error_invalid,
461 : "only input, output and set tuples can have names",
462 : goto error);
463 :
464 0 : isl_id_free(dim->tuple_id[type - isl_dim_in]);
465 0 : dim->tuple_id[type - isl_dim_in] = NULL;
466 :
467 0 : return dim;
468 : error:
469 0 : isl_space_free(dim);
470 0 : return NULL;
471 : }
472 :
473 : /* Set the id of the given dimension of "space" to "id".
474 : * If the dimension already has an id, then it is replaced.
475 : * If the dimension is a parameter, then we need to change it
476 : * in the nested spaces (if any) as well.
477 : */
478 0 : __isl_give isl_space *isl_space_set_dim_id(__isl_take isl_space *space,
479 : enum isl_dim_type type, unsigned pos, __isl_take isl_id *id)
480 : {
481 0 : space = isl_space_cow(space);
482 0 : if (!space || !id)
483 : goto error;
484 :
485 0 : if (type == isl_dim_param) {
486 : int i;
487 :
488 0 : for (i = 0; i < 2; ++i) {
489 0 : if (!space->nested[i])
490 0 : continue;
491 0 : space->nested[i] =
492 0 : isl_space_set_dim_id(space->nested[i],
493 : type, pos, isl_id_copy(id));
494 0 : if (!space->nested[i])
495 0 : goto error;
496 : }
497 : }
498 :
499 0 : isl_id_free(get_id(space, type, pos));
500 0 : return set_id(space, type, pos, id);
501 : error:
502 0 : isl_id_free(id);
503 0 : isl_space_free(space);
504 0 : return NULL;
505 : }
506 :
507 : /* Reset the id of the given dimension of "space".
508 : * If the dimension already has an id, then it is removed.
509 : * If the dimension is a parameter, then we need to reset it
510 : * in the nested spaces (if any) as well.
511 : */
512 0 : __isl_give isl_space *isl_space_reset_dim_id(__isl_take isl_space *space,
513 : enum isl_dim_type type, unsigned pos)
514 : {
515 0 : space = isl_space_cow(space);
516 0 : if (!space)
517 0 : goto error;
518 :
519 0 : if (type == isl_dim_param) {
520 : int i;
521 :
522 0 : for (i = 0; i < 2; ++i) {
523 0 : if (!space->nested[i])
524 0 : continue;
525 0 : space->nested[i] =
526 0 : isl_space_reset_dim_id(space->nested[i],
527 : type, pos);
528 0 : if (!space->nested[i])
529 0 : goto error;
530 : }
531 : }
532 :
533 0 : isl_id_free(get_id(space, type, pos));
534 0 : return set_id(space, type, pos, NULL);
535 : error:
536 0 : isl_space_free(space);
537 0 : return NULL;
538 : }
539 :
540 0 : isl_bool isl_space_has_dim_id(__isl_keep isl_space *dim,
541 : enum isl_dim_type type, unsigned pos)
542 : {
543 0 : if (!dim)
544 0 : return isl_bool_error;
545 0 : return get_id(dim, type, pos) != NULL;
546 : }
547 :
548 0 : __isl_give isl_id *isl_space_get_dim_id(__isl_keep isl_space *dim,
549 : enum isl_dim_type type, unsigned pos)
550 : {
551 0 : if (!dim)
552 0 : return NULL;
553 0 : if (!get_id(dim, type, pos))
554 0 : isl_die(dim->ctx, isl_error_invalid,
555 : "dim has no id", return NULL);
556 0 : return isl_id_copy(get_id(dim, type, pos));
557 : }
558 :
559 0 : __isl_give isl_space *isl_space_set_tuple_name(__isl_take isl_space *dim,
560 : enum isl_dim_type type, const char *s)
561 : {
562 : isl_id *id;
563 :
564 0 : if (!dim)
565 0 : return NULL;
566 :
567 0 : if (!s)
568 0 : return isl_space_reset_tuple_id(dim, type);
569 :
570 0 : if (!name_ok(dim->ctx, s))
571 0 : goto error;
572 :
573 0 : id = isl_id_alloc(dim->ctx, s, NULL);
574 0 : return isl_space_set_tuple_id(dim, type, id);
575 : error:
576 0 : isl_space_free(dim);
577 0 : return NULL;
578 : }
579 :
580 : /* Does the tuple have a name?
581 : */
582 0 : isl_bool isl_space_has_tuple_name(__isl_keep isl_space *space,
583 : enum isl_dim_type type)
584 : {
585 : isl_id *id;
586 :
587 0 : if (!space_can_have_id(space, type))
588 0 : return isl_bool_error;
589 0 : id = space->tuple_id[type - isl_dim_in];
590 0 : return id && id->name;
591 : }
592 :
593 225918 : __isl_keep const char *isl_space_get_tuple_name(__isl_keep isl_space *dim,
594 : enum isl_dim_type type)
595 : {
596 : isl_id *id;
597 225918 : if (!dim)
598 0 : return NULL;
599 225918 : if (type != isl_dim_in && type != isl_dim_out)
600 0 : return NULL;
601 225918 : id = dim->tuple_id[type - isl_dim_in];
602 225918 : return id ? id->name : NULL;
603 : }
604 :
605 0 : __isl_give isl_space *isl_space_set_dim_name(__isl_take isl_space *dim,
606 : enum isl_dim_type type, unsigned pos,
607 : const char *s)
608 : {
609 : isl_id *id;
610 :
611 0 : if (!dim)
612 0 : return NULL;
613 0 : if (!s)
614 0 : return isl_space_reset_dim_id(dim, type, pos);
615 0 : if (!name_ok(dim->ctx, s))
616 0 : goto error;
617 0 : id = isl_id_alloc(dim->ctx, s, NULL);
618 0 : return isl_space_set_dim_id(dim, type, pos, id);
619 : error:
620 0 : isl_space_free(dim);
621 0 : return NULL;
622 : }
623 :
624 : /* Does the given dimension have a name?
625 : */
626 0 : isl_bool isl_space_has_dim_name(__isl_keep isl_space *space,
627 : enum isl_dim_type type, unsigned pos)
628 : {
629 : isl_id *id;
630 :
631 0 : if (!space)
632 0 : return isl_bool_error;
633 0 : id = get_id(space, type, pos);
634 0 : return id && id->name;
635 : }
636 :
637 89783096 : __isl_keep const char *isl_space_get_dim_name(__isl_keep isl_space *dim,
638 : enum isl_dim_type type, unsigned pos)
639 : {
640 89783096 : isl_id *id = get_id(dim, type, pos);
641 89783096 : return id ? id->name : NULL;
642 : }
643 :
644 0 : int isl_space_find_dim_by_id(__isl_keep isl_space *dim, enum isl_dim_type type,
645 : __isl_keep isl_id *id)
646 : {
647 : int i;
648 : int offset;
649 : int n;
650 :
651 0 : if (!dim || !id)
652 0 : return -1;
653 :
654 0 : offset = isl_space_offset(dim, type);
655 0 : n = isl_space_dim(dim, type);
656 0 : for (i = 0; i < n && offset + i < dim->n_id; ++i)
657 0 : if (dim->ids[offset + i] == id)
658 0 : return i;
659 :
660 0 : return -1;
661 : }
662 :
663 0 : int isl_space_find_dim_by_name(__isl_keep isl_space *space,
664 : enum isl_dim_type type, const char *name)
665 : {
666 : int i;
667 : int offset;
668 : int n;
669 :
670 0 : if (!space || !name)
671 0 : return -1;
672 :
673 0 : offset = isl_space_offset(space, type);
674 0 : n = isl_space_dim(space, type);
675 0 : for (i = 0; i < n && offset + i < space->n_id; ++i) {
676 0 : isl_id *id = get_id(space, type, i);
677 0 : if (id && id->name && !strcmp(id->name, name))
678 0 : return i;
679 : }
680 :
681 0 : return -1;
682 : }
683 :
684 : /* Reset the user pointer on all identifiers of parameters and tuples
685 : * of "space".
686 : */
687 0 : __isl_give isl_space *isl_space_reset_user(__isl_take isl_space *space)
688 : {
689 : int i;
690 : isl_ctx *ctx;
691 : isl_id *id;
692 : const char *name;
693 :
694 0 : if (!space)
695 0 : return NULL;
696 :
697 0 : ctx = isl_space_get_ctx(space);
698 :
699 0 : for (i = 0; i < space->nparam && i < space->n_id; ++i) {
700 0 : if (!isl_id_get_user(space->ids[i]))
701 0 : continue;
702 0 : space = isl_space_cow(space);
703 0 : if (!space)
704 0 : return NULL;
705 0 : name = isl_id_get_name(space->ids[i]);
706 0 : id = isl_id_alloc(ctx, name, NULL);
707 0 : isl_id_free(space->ids[i]);
708 0 : space->ids[i] = id;
709 0 : if (!id)
710 0 : return isl_space_free(space);
711 : }
712 :
713 0 : for (i = 0; i < 2; ++i) {
714 0 : if (!space->tuple_id[i])
715 0 : continue;
716 0 : if (!isl_id_get_user(space->tuple_id[i]))
717 0 : continue;
718 0 : space = isl_space_cow(space);
719 0 : if (!space)
720 0 : return NULL;
721 0 : name = isl_id_get_name(space->tuple_id[i]);
722 0 : id = isl_id_alloc(ctx, name, NULL);
723 0 : isl_id_free(space->tuple_id[i]);
724 0 : space->tuple_id[i] = id;
725 0 : if (!id)
726 0 : return isl_space_free(space);
727 : }
728 :
729 0 : for (i = 0; i < 2; ++i) {
730 0 : if (!space->nested[i])
731 0 : continue;
732 0 : space = isl_space_cow(space);
733 0 : if (!space)
734 0 : return NULL;
735 0 : space->nested[i] = isl_space_reset_user(space->nested[i]);
736 0 : if (!space->nested[i])
737 0 : return isl_space_free(space);
738 : }
739 :
740 0 : return space;
741 : }
742 :
743 95347803678 : static __isl_keep isl_id *tuple_id(__isl_keep isl_space *dim,
744 : enum isl_dim_type type)
745 : {
746 95347803678 : if (!dim)
747 0 : return NULL;
748 95347803678 : if (type == isl_dim_in)
749 32552049754 : return dim->tuple_id[0];
750 62795753924 : if (type == isl_dim_out)
751 30111769536 : return dim->tuple_id[1];
752 32683984388 : return NULL;
753 : }
754 :
755 93664691270 : static __isl_keep isl_space *nested(__isl_keep isl_space *dim,
756 : enum isl_dim_type type)
757 : {
758 93664691270 : if (!dim)
759 0 : return NULL;
760 93664691270 : if (type == isl_dim_in)
761 30868937346 : return dim->nested[0];
762 62795753924 : if (type == isl_dim_out)
763 30111769536 : return dim->nested[1];
764 32683984388 : return NULL;
765 : }
766 :
767 : /* Are the two spaces the same, apart from positions and names of parameters?
768 : */
769 16242816667 : isl_bool isl_space_has_equal_tuples(__isl_keep isl_space *space1,
770 : __isl_keep isl_space *space2)
771 : {
772 16242816667 : if (!space1 || !space2)
773 0 : return isl_bool_error;
774 16242816667 : if (space1 == space2)
775 0 : return isl_bool_true;
776 31265493225 : return isl_space_tuple_is_equal(space1, isl_dim_in,
777 15401260463 : space2, isl_dim_in) &&
778 15401260463 : isl_space_tuple_is_equal(space1, isl_dim_out,
779 : space2, isl_dim_out);
780 : }
781 :
782 : /* Check if the tuple of type "type1" of "space1" is the same as
783 : * the tuple of type "type2" of "space2".
784 : *
785 : * That is, check if the tuples have the same identifier, the same dimension
786 : * and the same internal structure.
787 : * The identifiers of the dimensions inside the tuples do not affect the result.
788 : *
789 : * Note that this function only checks the tuples themselves.
790 : * If nested tuples are involved, then we need to be careful not
791 : * to have result affected by possibly differing parameters
792 : * in those nested tuples.
793 : */
794 47961761607 : isl_bool isl_space_tuple_is_equal(__isl_keep isl_space *space1,
795 : enum isl_dim_type type1, __isl_keep isl_space *space2,
796 : enum isl_dim_type type2)
797 : {
798 : isl_id *id1, *id2;
799 : isl_space *nested1, *nested2;
800 :
801 47961761607 : if (!space1 || !space2)
802 0 : return isl_bool_error;
803 :
804 47961761607 : if (space1 == space2 && type1 == type2)
805 4250640 : return isl_bool_true;
806 :
807 47957510967 : if (n(space1, type1) != n(space2, type2))
808 378583905 : return isl_bool_false;
809 47578927062 : id1 = tuple_id(space1, type1);
810 47578927062 : id2 = tuple_id(space2, type2);
811 47578927062 : if (!id1 ^ !id2)
812 841556204 : return isl_bool_false;
813 46737370858 : if (id1 && id1 != id2)
814 0 : return isl_bool_false;
815 46737370858 : nested1 = nested(space1, type1);
816 46737370858 : nested2 = nested(space2, type2);
817 46737370858 : if (!nested1 ^ !nested2)
818 0 : return isl_bool_false;
819 46737370858 : if (nested1 && !isl_space_has_equal_tuples(nested1, nested2))
820 0 : return isl_bool_false;
821 46737370858 : return isl_bool_true;
822 : }
823 :
824 17704252030 : static isl_bool match(__isl_keep isl_space *space1, enum isl_dim_type type1,
825 : __isl_keep isl_space *space2, enum isl_dim_type type2)
826 : {
827 : int i;
828 :
829 17704252030 : if (space1 == space2 && type1 == type2)
830 1391127141 : return isl_bool_true;
831 :
832 16313124889 : if (!isl_space_tuple_is_equal(space1, type1, space2, type2))
833 0 : return isl_bool_false;
834 :
835 16313124889 : if (!space1->ids && !space2->ids)
836 16313124889 : return isl_bool_true;
837 :
838 0 : for (i = 0; i < n(space1, type1); ++i) {
839 0 : if (get_id(space1, type1, i) != get_id(space2, type2, i))
840 0 : return isl_bool_false;
841 : }
842 0 : return isl_bool_true;
843 : }
844 :
845 : /* Do "space1" and "space2" have the same parameters?
846 : */
847 16408135040 : isl_bool isl_space_has_equal_params(__isl_keep isl_space *space1,
848 : __isl_keep isl_space *space2)
849 : {
850 16408135040 : if (!space1 || !space2)
851 0 : return isl_bool_error;
852 :
853 16408135040 : return match(space1, isl_dim_param, space2, isl_dim_param);
854 : }
855 :
856 : /* Do "space1" and "space2" have the same identifiers for all
857 : * the tuple variables?
858 : */
859 648058495 : isl_bool isl_space_has_equal_ids(__isl_keep isl_space *space1,
860 : __isl_keep isl_space *space2)
861 : {
862 : isl_bool equal;
863 :
864 648058495 : if (!space1 || !space2)
865 0 : return isl_bool_error;
866 :
867 648058495 : equal = match(space1, isl_dim_in, space2, isl_dim_in);
868 648058495 : if (equal < 0 || !equal)
869 0 : return equal;
870 648058495 : return match(space1, isl_dim_out, space2, isl_dim_out);
871 : }
872 :
873 0 : isl_bool isl_space_match(__isl_keep isl_space *space1, enum isl_dim_type type1,
874 : __isl_keep isl_space *space2, enum isl_dim_type type2)
875 : {
876 0 : if (!space1 || !space2)
877 0 : return isl_bool_error;
878 :
879 0 : return match(space1, type1, space2, type2);
880 : }
881 :
882 0 : static void get_ids(__isl_keep isl_space *dim, enum isl_dim_type type,
883 : unsigned first, unsigned n, __isl_keep isl_id **ids)
884 : {
885 : int i;
886 :
887 0 : for (i = 0; i < n ; ++i)
888 0 : ids[i] = get_id(dim, type, first + i);
889 0 : }
890 :
891 129106 : static __isl_give isl_space *space_extend(__isl_take isl_space *space,
892 : unsigned nparam, unsigned n_in, unsigned n_out)
893 : {
894 129106 : isl_id **ids = NULL;
895 :
896 129106 : if (!space)
897 0 : return NULL;
898 258212 : if (space->nparam == nparam &&
899 258212 : space->n_in == n_in && space->n_out == n_out)
900 0 : return space;
901 :
902 129106 : isl_assert(space->ctx, space->nparam <= nparam, goto error);
903 129106 : isl_assert(space->ctx, space->n_in <= n_in, goto error);
904 129106 : isl_assert(space->ctx, space->n_out <= n_out, goto error);
905 :
906 129106 : space = isl_space_cow(space);
907 129106 : if (!space)
908 0 : goto error;
909 :
910 129106 : if (space->ids) {
911 : unsigned n;
912 0 : n = nparam + n_in + n_out;
913 0 : if (n < nparam || n < n_in || n < n_out)
914 0 : isl_die(isl_space_get_ctx(space), isl_error_invalid,
915 : "overflow in total number of dimensions",
916 : goto error);
917 0 : ids = isl_calloc_array(space->ctx, isl_id *, n);
918 0 : if (!ids)
919 0 : goto error;
920 0 : get_ids(space, isl_dim_param, 0, space->nparam, ids);
921 0 : get_ids(space, isl_dim_in, 0, space->n_in, ids + nparam);
922 0 : get_ids(space, isl_dim_out, 0, space->n_out,
923 0 : ids + nparam + n_in);
924 0 : free(space->ids);
925 0 : space->ids = ids;
926 0 : space->n_id = nparam + n_in + n_out;
927 : }
928 129106 : space->nparam = nparam;
929 129106 : space->n_in = n_in;
930 129106 : space->n_out = n_out;
931 :
932 129106 : return space;
933 : error:
934 0 : free(ids);
935 0 : isl_space_free(space);
936 0 : return NULL;
937 : }
938 :
939 0 : __isl_give isl_space *isl_space_extend(__isl_take isl_space *space,
940 : unsigned nparam, unsigned n_in, unsigned n_out)
941 : {
942 0 : return space_extend(space, nparam, n_in, n_out);
943 : }
944 :
945 129106 : __isl_give isl_space *isl_space_add_dims(__isl_take isl_space *space,
946 : enum isl_dim_type type, unsigned n)
947 : {
948 129106 : space = isl_space_reset(space, type);
949 129106 : if (!space)
950 0 : return NULL;
951 129106 : switch (type) {
952 : case isl_dim_param:
953 0 : space = space_extend(space,
954 0 : space->nparam + n, space->n_in, space->n_out);
955 0 : if (space && space->nested[0] &&
956 0 : !(space->nested[0] = isl_space_add_dims(space->nested[0],
957 : isl_dim_param, n)))
958 0 : goto error;
959 0 : if (space && space->nested[1] &&
960 0 : !(space->nested[1] = isl_space_add_dims(space->nested[1],
961 : isl_dim_param, n)))
962 0 : goto error;
963 0 : return space;
964 : case isl_dim_in:
965 0 : return space_extend(space,
966 0 : space->nparam, space->n_in + n, space->n_out);
967 : case isl_dim_out:
968 129106 : return space_extend(space,
969 129106 : space->nparam, space->n_in, space->n_out + n);
970 : default:
971 0 : isl_die(space->ctx, isl_error_invalid,
972 : "cannot add dimensions of specified type", goto error);
973 : }
974 : error:
975 0 : isl_space_free(space);
976 0 : return NULL;
977 : }
978 :
979 : /* Add a parameter with identifier "id" to "space", provided
980 : * it does not already appear in "space".
981 : */
982 0 : __isl_give isl_space *isl_space_add_param_id(__isl_take isl_space *space,
983 : __isl_take isl_id *id)
984 : {
985 : int pos;
986 :
987 0 : if (!space || !id)
988 : goto error;
989 :
990 0 : if (isl_space_find_dim_by_id(space, isl_dim_param, id) >= 0) {
991 0 : isl_id_free(id);
992 0 : return space;
993 : }
994 :
995 0 : pos = isl_space_dim(space, isl_dim_param);
996 0 : space = isl_space_add_dims(space, isl_dim_param, 1);
997 0 : space = isl_space_set_dim_id(space, isl_dim_param, pos, id);
998 :
999 0 : return space;
1000 : error:
1001 0 : isl_space_free(space);
1002 0 : isl_id_free(id);
1003 0 : return NULL;
1004 : }
1005 :
1006 17167917 : static int valid_dim_type(enum isl_dim_type type)
1007 : {
1008 17167917 : switch (type) {
1009 : case isl_dim_param:
1010 : case isl_dim_in:
1011 : case isl_dim_out:
1012 17167917 : return 1;
1013 : default:
1014 0 : return 0;
1015 : }
1016 : }
1017 :
1018 : /* Insert "n" dimensions of type "type" at position "pos".
1019 : * If we are inserting parameters, then they are also inserted in
1020 : * any nested spaces.
1021 : */
1022 0 : __isl_give isl_space *isl_space_insert_dims(__isl_take isl_space *space,
1023 : enum isl_dim_type type, unsigned pos, unsigned n)
1024 : {
1025 : isl_ctx *ctx;
1026 0 : isl_id **ids = NULL;
1027 : unsigned total;
1028 :
1029 0 : if (!space)
1030 0 : return NULL;
1031 0 : if (n == 0)
1032 0 : return isl_space_reset(space, type);
1033 :
1034 0 : ctx = isl_space_get_ctx(space);
1035 0 : if (!valid_dim_type(type))
1036 0 : isl_die(ctx, isl_error_invalid,
1037 : "cannot insert dimensions of specified type",
1038 : goto error);
1039 :
1040 0 : total = isl_space_dim(space, isl_dim_all);
1041 0 : if (total + n < total)
1042 0 : isl_die(ctx, isl_error_invalid,
1043 : "overflow in total number of dimensions",
1044 : return isl_space_free(space));
1045 0 : isl_assert(ctx, pos <= isl_space_dim(space, type), goto error);
1046 :
1047 0 : space = isl_space_cow(space);
1048 0 : if (!space)
1049 0 : return NULL;
1050 :
1051 0 : if (space->ids) {
1052 0 : enum isl_dim_type t, o = isl_dim_param;
1053 : int off;
1054 : int s[3];
1055 0 : ids = isl_calloc_array(ctx, isl_id *,
1056 : space->nparam + space->n_in + space->n_out + n);
1057 0 : if (!ids)
1058 0 : goto error;
1059 0 : off = 0;
1060 0 : s[isl_dim_param - o] = space->nparam;
1061 0 : s[isl_dim_in - o] = space->n_in;
1062 0 : s[isl_dim_out - o] = space->n_out;
1063 0 : for (t = isl_dim_param; t <= isl_dim_out; ++t) {
1064 0 : if (t != type) {
1065 0 : get_ids(space, t, 0, s[t - o], ids + off);
1066 0 : off += s[t - o];
1067 : } else {
1068 0 : get_ids(space, t, 0, pos, ids + off);
1069 0 : off += pos + n;
1070 0 : get_ids(space, t, pos, s[t - o] - pos,
1071 0 : ids + off);
1072 0 : off += s[t - o] - pos;
1073 : }
1074 : }
1075 0 : free(space->ids);
1076 0 : space->ids = ids;
1077 0 : space->n_id = space->nparam + space->n_in + space->n_out + n;
1078 : }
1079 0 : switch (type) {
1080 0 : case isl_dim_param: space->nparam += n; break;
1081 0 : case isl_dim_in: space->n_in += n; break;
1082 0 : case isl_dim_out: space->n_out += n; break;
1083 : default: ;
1084 : }
1085 0 : space = isl_space_reset(space, type);
1086 :
1087 0 : if (type == isl_dim_param) {
1088 0 : if (space && space->nested[0] &&
1089 0 : !(space->nested[0] = isl_space_insert_dims(space->nested[0],
1090 : isl_dim_param, pos, n)))
1091 0 : goto error;
1092 0 : if (space && space->nested[1] &&
1093 0 : !(space->nested[1] = isl_space_insert_dims(space->nested[1],
1094 : isl_dim_param, pos, n)))
1095 0 : goto error;
1096 : }
1097 :
1098 0 : return space;
1099 : error:
1100 0 : isl_space_free(space);
1101 0 : return NULL;
1102 : }
1103 :
1104 0 : __isl_give isl_space *isl_space_move_dims(__isl_take isl_space *space,
1105 : enum isl_dim_type dst_type, unsigned dst_pos,
1106 : enum isl_dim_type src_type, unsigned src_pos, unsigned n)
1107 : {
1108 : int i;
1109 :
1110 0 : space = isl_space_reset(space, src_type);
1111 0 : space = isl_space_reset(space, dst_type);
1112 0 : if (!space)
1113 0 : return NULL;
1114 0 : if (n == 0)
1115 0 : return space;
1116 :
1117 0 : isl_assert(space->ctx, src_pos + n <= isl_space_dim(space, src_type),
1118 : goto error);
1119 :
1120 0 : if (dst_type == src_type && dst_pos == src_pos)
1121 0 : return space;
1122 :
1123 0 : isl_assert(space->ctx, dst_type != src_type, goto error);
1124 :
1125 0 : space = isl_space_cow(space);
1126 0 : if (!space)
1127 0 : return NULL;
1128 :
1129 0 : if (space->ids) {
1130 : isl_id **ids;
1131 0 : enum isl_dim_type t, o = isl_dim_param;
1132 : int off;
1133 : int s[3];
1134 0 : ids = isl_calloc_array(space->ctx, isl_id *,
1135 : space->nparam + space->n_in + space->n_out);
1136 0 : if (!ids)
1137 0 : goto error;
1138 0 : off = 0;
1139 0 : s[isl_dim_param - o] = space->nparam;
1140 0 : s[isl_dim_in - o] = space->n_in;
1141 0 : s[isl_dim_out - o] = space->n_out;
1142 0 : for (t = isl_dim_param; t <= isl_dim_out; ++t) {
1143 0 : if (t == dst_type) {
1144 0 : get_ids(space, t, 0, dst_pos, ids + off);
1145 0 : off += dst_pos;
1146 0 : get_ids(space, src_type, src_pos, n, ids + off);
1147 0 : off += n;
1148 0 : get_ids(space, t, dst_pos, s[t - o] - dst_pos,
1149 0 : ids + off);
1150 0 : off += s[t - o] - dst_pos;
1151 0 : } else if (t == src_type) {
1152 0 : get_ids(space, t, 0, src_pos, ids + off);
1153 0 : off += src_pos;
1154 0 : get_ids(space, t, src_pos + n,
1155 0 : s[t - o] - src_pos - n, ids + off);
1156 0 : off += s[t - o] - src_pos - n;
1157 : } else {
1158 0 : get_ids(space, t, 0, s[t - o], ids + off);
1159 0 : off += s[t - o];
1160 : }
1161 : }
1162 0 : free(space->ids);
1163 0 : space->ids = ids;
1164 0 : space->n_id = space->nparam + space->n_in + space->n_out;
1165 : }
1166 :
1167 0 : switch (dst_type) {
1168 0 : case isl_dim_param: space->nparam += n; break;
1169 0 : case isl_dim_in: space->n_in += n; break;
1170 0 : case isl_dim_out: space->n_out += n; break;
1171 : default: ;
1172 : }
1173 :
1174 0 : switch (src_type) {
1175 0 : case isl_dim_param: space->nparam -= n; break;
1176 0 : case isl_dim_in: space->n_in -= n; break;
1177 0 : case isl_dim_out: space->n_out -= n; break;
1178 : default: ;
1179 : }
1180 :
1181 0 : if (dst_type != isl_dim_param && src_type != isl_dim_param)
1182 0 : return space;
1183 :
1184 0 : for (i = 0; i < 2; ++i) {
1185 0 : if (!space->nested[i])
1186 0 : continue;
1187 0 : space->nested[i] = isl_space_replace_params(space->nested[i],
1188 : space);
1189 0 : if (!space->nested[i])
1190 0 : goto error;
1191 : }
1192 :
1193 0 : return space;
1194 : error:
1195 0 : isl_space_free(space);
1196 0 : return NULL;
1197 : }
1198 :
1199 : /* Check that "space1" and "space2" have the same parameters,
1200 : * reporting an error if they do not.
1201 : */
1202 0 : isl_stat isl_space_check_equal_params(__isl_keep isl_space *space1,
1203 : __isl_keep isl_space *space2)
1204 : {
1205 : isl_bool equal;
1206 :
1207 0 : equal = isl_space_has_equal_params(space1, space2);
1208 0 : if (equal < 0)
1209 0 : return isl_stat_error;
1210 0 : if (!equal)
1211 0 : isl_die(isl_space_get_ctx(space1), isl_error_invalid,
1212 : "parameters need to match", return isl_stat_error);
1213 0 : return isl_stat_ok;
1214 : }
1215 :
1216 0 : __isl_give isl_space *isl_space_join(__isl_take isl_space *left,
1217 : __isl_take isl_space *right)
1218 : {
1219 : isl_space *dim;
1220 :
1221 0 : if (isl_space_check_equal_params(left, right) < 0)
1222 0 : goto error;
1223 :
1224 0 : isl_assert(left->ctx,
1225 : isl_space_tuple_is_equal(left, isl_dim_out, right, isl_dim_in),
1226 : goto error);
1227 :
1228 0 : dim = isl_space_alloc(left->ctx, left->nparam, left->n_in, right->n_out);
1229 0 : if (!dim)
1230 0 : goto error;
1231 :
1232 0 : dim = copy_ids(dim, isl_dim_param, 0, left, isl_dim_param);
1233 0 : dim = copy_ids(dim, isl_dim_in, 0, left, isl_dim_in);
1234 0 : dim = copy_ids(dim, isl_dim_out, 0, right, isl_dim_out);
1235 :
1236 0 : if (dim && left->tuple_id[0] &&
1237 0 : !(dim->tuple_id[0] = isl_id_copy(left->tuple_id[0])))
1238 0 : goto error;
1239 0 : if (dim && right->tuple_id[1] &&
1240 0 : !(dim->tuple_id[1] = isl_id_copy(right->tuple_id[1])))
1241 0 : goto error;
1242 0 : if (dim && left->nested[0] &&
1243 0 : !(dim->nested[0] = isl_space_copy(left->nested[0])))
1244 0 : goto error;
1245 0 : if (dim && right->nested[1] &&
1246 0 : !(dim->nested[1] = isl_space_copy(right->nested[1])))
1247 0 : goto error;
1248 :
1249 0 : isl_space_free(left);
1250 0 : isl_space_free(right);
1251 :
1252 0 : return dim;
1253 : error:
1254 0 : isl_space_free(left);
1255 0 : isl_space_free(right);
1256 0 : return NULL;
1257 : }
1258 :
1259 : /* Given two map spaces { A -> C } and { B -> D }, construct the space
1260 : * { [A -> B] -> [C -> D] }.
1261 : * Given two set spaces { A } and { B }, construct the space { [A -> B] }.
1262 : */
1263 0 : __isl_give isl_space *isl_space_product(__isl_take isl_space *left,
1264 : __isl_take isl_space *right)
1265 : {
1266 : isl_space *dom1, *dom2, *nest1, *nest2;
1267 : int is_set;
1268 :
1269 0 : if (!left || !right)
1270 : goto error;
1271 :
1272 0 : is_set = isl_space_is_set(left);
1273 0 : if (is_set != isl_space_is_set(right))
1274 0 : isl_die(isl_space_get_ctx(left), isl_error_invalid,
1275 : "expecting either two set spaces or two map spaces",
1276 : goto error);
1277 0 : if (is_set)
1278 0 : return isl_space_range_product(left, right);
1279 :
1280 0 : if (isl_space_check_equal_params(left, right) < 0)
1281 0 : goto error;
1282 :
1283 0 : dom1 = isl_space_domain(isl_space_copy(left));
1284 0 : dom2 = isl_space_domain(isl_space_copy(right));
1285 0 : nest1 = isl_space_wrap(isl_space_join(isl_space_reverse(dom1), dom2));
1286 :
1287 0 : dom1 = isl_space_range(left);
1288 0 : dom2 = isl_space_range(right);
1289 0 : nest2 = isl_space_wrap(isl_space_join(isl_space_reverse(dom1), dom2));
1290 :
1291 0 : return isl_space_join(isl_space_reverse(nest1), nest2);
1292 : error:
1293 0 : isl_space_free(left);
1294 0 : isl_space_free(right);
1295 0 : return NULL;
1296 : }
1297 :
1298 : /* Given two spaces { A -> C } and { B -> C }, construct the space
1299 : * { [A -> B] -> C }
1300 : */
1301 0 : __isl_give isl_space *isl_space_domain_product(__isl_take isl_space *left,
1302 : __isl_take isl_space *right)
1303 : {
1304 : isl_space *ran, *dom1, *dom2, *nest;
1305 :
1306 0 : if (isl_space_check_equal_params(left, right) < 0)
1307 0 : goto error;
1308 :
1309 0 : if (!isl_space_tuple_is_equal(left, isl_dim_out, right, isl_dim_out))
1310 0 : isl_die(left->ctx, isl_error_invalid,
1311 : "ranges need to match", goto error);
1312 :
1313 0 : ran = isl_space_range(isl_space_copy(left));
1314 :
1315 0 : dom1 = isl_space_domain(left);
1316 0 : dom2 = isl_space_domain(right);
1317 0 : nest = isl_space_wrap(isl_space_join(isl_space_reverse(dom1), dom2));
1318 :
1319 0 : return isl_space_join(isl_space_reverse(nest), ran);
1320 : error:
1321 0 : isl_space_free(left);
1322 0 : isl_space_free(right);
1323 0 : return NULL;
1324 : }
1325 :
1326 0 : __isl_give isl_space *isl_space_range_product(__isl_take isl_space *left,
1327 : __isl_take isl_space *right)
1328 : {
1329 : isl_space *dom, *ran1, *ran2, *nest;
1330 :
1331 0 : if (isl_space_check_equal_params(left, right) < 0)
1332 0 : goto error;
1333 :
1334 0 : if (!isl_space_tuple_is_equal(left, isl_dim_in, right, isl_dim_in))
1335 0 : isl_die(left->ctx, isl_error_invalid,
1336 : "domains need to match", goto error);
1337 :
1338 0 : dom = isl_space_domain(isl_space_copy(left));
1339 :
1340 0 : ran1 = isl_space_range(left);
1341 0 : ran2 = isl_space_range(right);
1342 0 : nest = isl_space_wrap(isl_space_join(isl_space_reverse(ran1), ran2));
1343 :
1344 0 : return isl_space_join(isl_space_reverse(dom), nest);
1345 : error:
1346 0 : isl_space_free(left);
1347 0 : isl_space_free(right);
1348 0 : return NULL;
1349 : }
1350 :
1351 : /* Given a space of the form [A -> B] -> C, return the space A -> C.
1352 : */
1353 0 : __isl_give isl_space *isl_space_domain_factor_domain(
1354 : __isl_take isl_space *space)
1355 : {
1356 : isl_space *nested;
1357 : isl_space *domain;
1358 :
1359 0 : if (!space)
1360 0 : return NULL;
1361 0 : if (!isl_space_domain_is_wrapping(space))
1362 0 : isl_die(isl_space_get_ctx(space), isl_error_invalid,
1363 : "domain not a product", return isl_space_free(space));
1364 :
1365 0 : nested = space->nested[0];
1366 0 : domain = isl_space_copy(space);
1367 0 : domain = isl_space_drop_dims(domain, isl_dim_in,
1368 : nested->n_in, nested->n_out);
1369 0 : if (!domain)
1370 0 : return isl_space_free(space);
1371 0 : if (nested->tuple_id[0]) {
1372 0 : domain->tuple_id[0] = isl_id_copy(nested->tuple_id[0]);
1373 0 : if (!domain->tuple_id[0])
1374 0 : goto error;
1375 : }
1376 0 : if (nested->nested[0]) {
1377 0 : domain->nested[0] = isl_space_copy(nested->nested[0]);
1378 0 : if (!domain->nested[0])
1379 0 : goto error;
1380 : }
1381 :
1382 0 : isl_space_free(space);
1383 0 : return domain;
1384 : error:
1385 0 : isl_space_free(space);
1386 0 : isl_space_free(domain);
1387 0 : return NULL;
1388 : }
1389 :
1390 : /* Given a space of the form [A -> B] -> C, return the space B -> C.
1391 : */
1392 0 : __isl_give isl_space *isl_space_domain_factor_range(
1393 : __isl_take isl_space *space)
1394 : {
1395 : isl_space *nested;
1396 : isl_space *range;
1397 :
1398 0 : if (!space)
1399 0 : return NULL;
1400 0 : if (!isl_space_domain_is_wrapping(space))
1401 0 : isl_die(isl_space_get_ctx(space), isl_error_invalid,
1402 : "domain not a product", return isl_space_free(space));
1403 :
1404 0 : nested = space->nested[0];
1405 0 : range = isl_space_copy(space);
1406 0 : range = isl_space_drop_dims(range, isl_dim_in, 0, nested->n_in);
1407 0 : if (!range)
1408 0 : return isl_space_free(space);
1409 0 : if (nested->tuple_id[1]) {
1410 0 : range->tuple_id[0] = isl_id_copy(nested->tuple_id[1]);
1411 0 : if (!range->tuple_id[0])
1412 0 : goto error;
1413 : }
1414 0 : if (nested->nested[1]) {
1415 0 : range->nested[0] = isl_space_copy(nested->nested[1]);
1416 0 : if (!range->nested[0])
1417 0 : goto error;
1418 : }
1419 :
1420 0 : isl_space_free(space);
1421 0 : return range;
1422 : error:
1423 0 : isl_space_free(space);
1424 0 : isl_space_free(range);
1425 0 : return NULL;
1426 : }
1427 :
1428 : /* Internal function that selects the domain of the map that is
1429 : * embedded in either a set space or the range of a map space.
1430 : * In particular, given a space of the form [A -> B], return the space A.
1431 : * Given a space of the form A -> [B -> C], return the space A -> B.
1432 : */
1433 0 : static __isl_give isl_space *range_factor_domain(__isl_take isl_space *space)
1434 : {
1435 : isl_space *nested;
1436 : isl_space *domain;
1437 :
1438 0 : if (!space)
1439 0 : return NULL;
1440 :
1441 0 : nested = space->nested[1];
1442 0 : domain = isl_space_copy(space);
1443 0 : domain = isl_space_drop_dims(domain, isl_dim_out,
1444 : nested->n_in, nested->n_out);
1445 0 : if (!domain)
1446 0 : return isl_space_free(space);
1447 0 : if (nested->tuple_id[0]) {
1448 0 : domain->tuple_id[1] = isl_id_copy(nested->tuple_id[0]);
1449 0 : if (!domain->tuple_id[1])
1450 0 : goto error;
1451 : }
1452 0 : if (nested->nested[0]) {
1453 0 : domain->nested[1] = isl_space_copy(nested->nested[0]);
1454 0 : if (!domain->nested[1])
1455 0 : goto error;
1456 : }
1457 :
1458 0 : isl_space_free(space);
1459 0 : return domain;
1460 : error:
1461 0 : isl_space_free(space);
1462 0 : isl_space_free(domain);
1463 0 : return NULL;
1464 : }
1465 :
1466 : /* Given a space of the form A -> [B -> C], return the space A -> B.
1467 : */
1468 0 : __isl_give isl_space *isl_space_range_factor_domain(
1469 : __isl_take isl_space *space)
1470 : {
1471 0 : if (!space)
1472 0 : return NULL;
1473 0 : if (!isl_space_range_is_wrapping(space))
1474 0 : isl_die(isl_space_get_ctx(space), isl_error_invalid,
1475 : "range not a product", return isl_space_free(space));
1476 :
1477 0 : return range_factor_domain(space);
1478 : }
1479 :
1480 : /* Given a space of the form [A -> B], return the space A.
1481 : */
1482 0 : static __isl_give isl_space *set_factor_domain(__isl_take isl_space *space)
1483 : {
1484 0 : if (!space)
1485 0 : return NULL;
1486 0 : if (!isl_space_is_wrapping(space))
1487 0 : isl_die(isl_space_get_ctx(space), isl_error_invalid,
1488 : "not a product", return isl_space_free(space));
1489 :
1490 0 : return range_factor_domain(space);
1491 : }
1492 :
1493 : /* Given a space of the form [A -> B] -> [C -> D], return the space A -> C.
1494 : * Given a space of the form [A -> B], return the space A.
1495 : */
1496 0 : __isl_give isl_space *isl_space_factor_domain(__isl_take isl_space *space)
1497 : {
1498 0 : if (!space)
1499 0 : return NULL;
1500 0 : if (isl_space_is_set(space))
1501 0 : return set_factor_domain(space);
1502 0 : space = isl_space_domain_factor_domain(space);
1503 0 : space = isl_space_range_factor_domain(space);
1504 0 : return space;
1505 : }
1506 :
1507 : /* Internal function that selects the range of the map that is
1508 : * embedded in either a set space or the range of a map space.
1509 : * In particular, given a space of the form [A -> B], return the space B.
1510 : * Given a space of the form A -> [B -> C], return the space A -> C.
1511 : */
1512 0 : static __isl_give isl_space *range_factor_range(__isl_take isl_space *space)
1513 : {
1514 : isl_space *nested;
1515 : isl_space *range;
1516 :
1517 0 : if (!space)
1518 0 : return NULL;
1519 :
1520 0 : nested = space->nested[1];
1521 0 : range = isl_space_copy(space);
1522 0 : range = isl_space_drop_dims(range, isl_dim_out, 0, nested->n_in);
1523 0 : if (!range)
1524 0 : return isl_space_free(space);
1525 0 : if (nested->tuple_id[1]) {
1526 0 : range->tuple_id[1] = isl_id_copy(nested->tuple_id[1]);
1527 0 : if (!range->tuple_id[1])
1528 0 : goto error;
1529 : }
1530 0 : if (nested->nested[1]) {
1531 0 : range->nested[1] = isl_space_copy(nested->nested[1]);
1532 0 : if (!range->nested[1])
1533 0 : goto error;
1534 : }
1535 :
1536 0 : isl_space_free(space);
1537 0 : return range;
1538 : error:
1539 0 : isl_space_free(space);
1540 0 : isl_space_free(range);
1541 0 : return NULL;
1542 : }
1543 :
1544 : /* Given a space of the form A -> [B -> C], return the space A -> C.
1545 : */
1546 0 : __isl_give isl_space *isl_space_range_factor_range(
1547 : __isl_take isl_space *space)
1548 : {
1549 0 : if (!space)
1550 0 : return NULL;
1551 0 : if (!isl_space_range_is_wrapping(space))
1552 0 : isl_die(isl_space_get_ctx(space), isl_error_invalid,
1553 : "range not a product", return isl_space_free(space));
1554 :
1555 0 : return range_factor_range(space);
1556 : }
1557 :
1558 : /* Given a space of the form [A -> B], return the space B.
1559 : */
1560 0 : static __isl_give isl_space *set_factor_range(__isl_take isl_space *space)
1561 : {
1562 0 : if (!space)
1563 0 : return NULL;
1564 0 : if (!isl_space_is_wrapping(space))
1565 0 : isl_die(isl_space_get_ctx(space), isl_error_invalid,
1566 : "not a product", return isl_space_free(space));
1567 :
1568 0 : return range_factor_range(space);
1569 : }
1570 :
1571 : /* Given a space of the form [A -> B] -> [C -> D], return the space B -> D.
1572 : * Given a space of the form [A -> B], return the space B.
1573 : */
1574 0 : __isl_give isl_space *isl_space_factor_range(__isl_take isl_space *space)
1575 : {
1576 0 : if (!space)
1577 0 : return NULL;
1578 0 : if (isl_space_is_set(space))
1579 0 : return set_factor_range(space);
1580 0 : space = isl_space_domain_factor_range(space);
1581 0 : space = isl_space_range_factor_range(space);
1582 0 : return space;
1583 : }
1584 :
1585 0 : __isl_give isl_space *isl_space_map_from_set(__isl_take isl_space *space)
1586 : {
1587 : isl_ctx *ctx;
1588 0 : isl_id **ids = NULL;
1589 : int n_id;
1590 :
1591 0 : if (!space)
1592 0 : return NULL;
1593 0 : ctx = isl_space_get_ctx(space);
1594 0 : if (!isl_space_is_set(space))
1595 0 : isl_die(ctx, isl_error_invalid, "not a set space", goto error);
1596 0 : space = isl_space_cow(space);
1597 0 : if (!space)
1598 0 : return NULL;
1599 0 : n_id = space->nparam + space->n_out + space->n_out;
1600 0 : if (n_id > 0 && space->ids) {
1601 0 : ids = isl_calloc_array(space->ctx, isl_id *, n_id);
1602 0 : if (!ids)
1603 0 : goto error;
1604 0 : get_ids(space, isl_dim_param, 0, space->nparam, ids);
1605 0 : get_ids(space, isl_dim_out, 0, space->n_out,
1606 0 : ids + space->nparam);
1607 : }
1608 0 : space->n_in = space->n_out;
1609 0 : if (ids) {
1610 0 : free(space->ids);
1611 0 : space->ids = ids;
1612 0 : space->n_id = n_id;
1613 0 : space = copy_ids(space, isl_dim_out, 0, space, isl_dim_in);
1614 : }
1615 0 : isl_id_free(space->tuple_id[0]);
1616 0 : space->tuple_id[0] = isl_id_copy(space->tuple_id[1]);
1617 0 : isl_space_free(space->nested[0]);
1618 0 : space->nested[0] = isl_space_copy(space->nested[1]);
1619 0 : return space;
1620 : error:
1621 0 : isl_space_free(space);
1622 0 : return NULL;
1623 : }
1624 :
1625 0 : __isl_give isl_space *isl_space_map_from_domain_and_range(
1626 : __isl_take isl_space *domain, __isl_take isl_space *range)
1627 : {
1628 0 : if (!domain || !range)
1629 : goto error;
1630 0 : if (!isl_space_is_set(domain))
1631 0 : isl_die(isl_space_get_ctx(domain), isl_error_invalid,
1632 : "domain is not a set space", goto error);
1633 0 : if (!isl_space_is_set(range))
1634 0 : isl_die(isl_space_get_ctx(range), isl_error_invalid,
1635 : "range is not a set space", goto error);
1636 0 : return isl_space_join(isl_space_reverse(domain), range);
1637 : error:
1638 0 : isl_space_free(domain);
1639 0 : isl_space_free(range);
1640 0 : return NULL;
1641 : }
1642 :
1643 0 : static __isl_give isl_space *set_ids(__isl_take isl_space *dim,
1644 : enum isl_dim_type type,
1645 : unsigned first, unsigned n, __isl_take isl_id **ids)
1646 : {
1647 : int i;
1648 :
1649 0 : for (i = 0; i < n ; ++i)
1650 0 : dim = set_id(dim, type, first + i, ids[i]);
1651 :
1652 0 : return dim;
1653 : }
1654 :
1655 0 : __isl_give isl_space *isl_space_reverse(__isl_take isl_space *dim)
1656 : {
1657 : unsigned t;
1658 : isl_space *nested;
1659 0 : isl_id **ids = NULL;
1660 : isl_id *id;
1661 :
1662 0 : if (!dim)
1663 0 : return NULL;
1664 0 : if (match(dim, isl_dim_in, dim, isl_dim_out))
1665 0 : return dim;
1666 :
1667 0 : dim = isl_space_cow(dim);
1668 0 : if (!dim)
1669 0 : return NULL;
1670 :
1671 0 : id = dim->tuple_id[0];
1672 0 : dim->tuple_id[0] = dim->tuple_id[1];
1673 0 : dim->tuple_id[1] = id;
1674 :
1675 0 : nested = dim->nested[0];
1676 0 : dim->nested[0] = dim->nested[1];
1677 0 : dim->nested[1] = nested;
1678 :
1679 0 : if (dim->ids) {
1680 0 : int n_id = dim->n_in + dim->n_out;
1681 0 : ids = isl_alloc_array(dim->ctx, isl_id *, n_id);
1682 0 : if (n_id && !ids)
1683 0 : goto error;
1684 0 : get_ids(dim, isl_dim_in, 0, dim->n_in, ids);
1685 0 : get_ids(dim, isl_dim_out, 0, dim->n_out, ids + dim->n_in);
1686 : }
1687 :
1688 0 : t = dim->n_in;
1689 0 : dim->n_in = dim->n_out;
1690 0 : dim->n_out = t;
1691 :
1692 0 : if (dim->ids) {
1693 0 : dim = set_ids(dim, isl_dim_out, 0, dim->n_out, ids);
1694 0 : dim = set_ids(dim, isl_dim_in, 0, dim->n_in, ids + dim->n_out);
1695 0 : free(ids);
1696 : }
1697 :
1698 0 : return dim;
1699 : error:
1700 0 : free(ids);
1701 0 : isl_space_free(dim);
1702 0 : return NULL;
1703 : }
1704 :
1705 17167917 : __isl_give isl_space *isl_space_drop_dims(__isl_take isl_space *dim,
1706 : enum isl_dim_type type, unsigned first, unsigned num)
1707 : {
1708 : int i;
1709 :
1710 17167917 : if (!dim)
1711 0 : return NULL;
1712 :
1713 17167917 : if (num == 0)
1714 0 : return isl_space_reset(dim, type);
1715 :
1716 17167917 : if (!valid_dim_type(type))
1717 0 : isl_die(dim->ctx, isl_error_invalid,
1718 : "cannot drop dimensions of specified type", goto error);
1719 :
1720 17167917 : if (first + num > n(dim, type) || first + num < first)
1721 0 : isl_die(isl_space_get_ctx(dim), isl_error_invalid,
1722 : "index out of bounds", return isl_space_free(dim));
1723 17167917 : dim = isl_space_cow(dim);
1724 17167917 : if (!dim)
1725 0 : goto error;
1726 17167917 : if (dim->ids) {
1727 0 : dim = extend_ids(dim);
1728 0 : if (!dim)
1729 0 : goto error;
1730 0 : for (i = 0; i < num; ++i)
1731 0 : isl_id_free(get_id(dim, type, first + i));
1732 0 : for (i = first+num; i < n(dim, type); ++i)
1733 0 : set_id(dim, type, i - num, get_id(dim, type, i));
1734 0 : switch (type) {
1735 : case isl_dim_param:
1736 0 : get_ids(dim, isl_dim_in, 0, dim->n_in,
1737 0 : dim->ids + offset(dim, isl_dim_in) - num);
1738 : case isl_dim_in:
1739 0 : get_ids(dim, isl_dim_out, 0, dim->n_out,
1740 0 : dim->ids + offset(dim, isl_dim_out) - num);
1741 : default:
1742 : ;
1743 : }
1744 0 : dim->n_id -= num;
1745 : }
1746 17167917 : switch (type) {
1747 0 : case isl_dim_param: dim->nparam -= num; break;
1748 0 : case isl_dim_in: dim->n_in -= num; break;
1749 17167917 : case isl_dim_out: dim->n_out -= num; break;
1750 : default: ;
1751 : }
1752 17167917 : dim = isl_space_reset(dim, type);
1753 17167917 : if (type == isl_dim_param) {
1754 0 : if (dim && dim->nested[0] &&
1755 0 : !(dim->nested[0] = isl_space_drop_dims(dim->nested[0],
1756 : isl_dim_param, first, num)))
1757 0 : goto error;
1758 0 : if (dim && dim->nested[1] &&
1759 0 : !(dim->nested[1] = isl_space_drop_dims(dim->nested[1],
1760 : isl_dim_param, first, num)))
1761 0 : goto error;
1762 : }
1763 17167917 : return dim;
1764 : error:
1765 0 : isl_space_free(dim);
1766 0 : return NULL;
1767 : }
1768 :
1769 0 : __isl_give isl_space *isl_space_drop_inputs(__isl_take isl_space *dim,
1770 : unsigned first, unsigned n)
1771 : {
1772 0 : if (!dim)
1773 0 : return NULL;
1774 0 : return isl_space_drop_dims(dim, isl_dim_in, first, n);
1775 : }
1776 :
1777 0 : __isl_give isl_space *isl_space_drop_outputs(__isl_take isl_space *dim,
1778 : unsigned first, unsigned n)
1779 : {
1780 0 : if (!dim)
1781 0 : return NULL;
1782 0 : return isl_space_drop_dims(dim, isl_dim_out, first, n);
1783 : }
1784 :
1785 0 : __isl_give isl_space *isl_space_domain(__isl_take isl_space *space)
1786 : {
1787 0 : if (!space)
1788 0 : return NULL;
1789 0 : space = isl_space_drop_dims(space, isl_dim_out, 0, space->n_out);
1790 0 : space = isl_space_reverse(space);
1791 0 : space = mark_as_set(space);
1792 0 : return space;
1793 : }
1794 :
1795 0 : __isl_give isl_space *isl_space_from_domain(__isl_take isl_space *dim)
1796 : {
1797 0 : if (!dim)
1798 0 : return NULL;
1799 0 : if (!isl_space_is_set(dim))
1800 0 : isl_die(isl_space_get_ctx(dim), isl_error_invalid,
1801 : "not a set space", goto error);
1802 0 : dim = isl_space_reverse(dim);
1803 0 : dim = isl_space_reset(dim, isl_dim_out);
1804 0 : return dim;
1805 : error:
1806 0 : isl_space_free(dim);
1807 0 : return NULL;
1808 : }
1809 :
1810 0 : __isl_give isl_space *isl_space_range(__isl_take isl_space *space)
1811 : {
1812 0 : if (!space)
1813 0 : return NULL;
1814 0 : space = isl_space_drop_dims(space, isl_dim_in, 0, space->n_in);
1815 0 : space = mark_as_set(space);
1816 0 : return space;
1817 : }
1818 :
1819 0 : __isl_give isl_space *isl_space_from_range(__isl_take isl_space *dim)
1820 : {
1821 0 : if (!dim)
1822 0 : return NULL;
1823 0 : if (!isl_space_is_set(dim))
1824 0 : isl_die(isl_space_get_ctx(dim), isl_error_invalid,
1825 : "not a set space", goto error);
1826 0 : return isl_space_reset(dim, isl_dim_in);
1827 : error:
1828 0 : isl_space_free(dim);
1829 0 : return NULL;
1830 : }
1831 :
1832 : /* Given a map space A -> B, return the map space [A -> B] -> A.
1833 : */
1834 0 : __isl_give isl_space *isl_space_domain_map(__isl_take isl_space *space)
1835 : {
1836 : isl_space *domain;
1837 :
1838 0 : domain = isl_space_from_range(isl_space_domain(isl_space_copy(space)));
1839 0 : space = isl_space_from_domain(isl_space_wrap(space));
1840 0 : space = isl_space_join(space, domain);
1841 :
1842 0 : return space;
1843 : }
1844 :
1845 : /* Given a map space A -> B, return the map space [A -> B] -> B.
1846 : */
1847 0 : __isl_give isl_space *isl_space_range_map(__isl_take isl_space *space)
1848 : {
1849 : isl_space *range;
1850 :
1851 0 : range = isl_space_from_range(isl_space_range(isl_space_copy(space)));
1852 0 : space = isl_space_from_domain(isl_space_wrap(space));
1853 0 : space = isl_space_join(space, range);
1854 :
1855 0 : return space;
1856 : }
1857 :
1858 0 : __isl_give isl_space *isl_space_params(__isl_take isl_space *space)
1859 : {
1860 0 : if (isl_space_is_params(space))
1861 0 : return space;
1862 0 : space = isl_space_drop_dims(space,
1863 : isl_dim_in, 0, isl_space_dim(space, isl_dim_in));
1864 0 : space = isl_space_drop_dims(space,
1865 : isl_dim_out, 0, isl_space_dim(space, isl_dim_out));
1866 0 : space = mark_as_params(space);
1867 0 : return space;
1868 : }
1869 :
1870 0 : __isl_give isl_space *isl_space_set_from_params(__isl_take isl_space *space)
1871 : {
1872 0 : if (!space)
1873 0 : return NULL;
1874 0 : if (!isl_space_is_params(space))
1875 0 : isl_die(isl_space_get_ctx(space), isl_error_invalid,
1876 : "not a parameter space", goto error);
1877 0 : return isl_space_reset(space, isl_dim_set);
1878 : error:
1879 0 : isl_space_free(space);
1880 0 : return NULL;
1881 : }
1882 :
1883 57730041 : __isl_give isl_space *isl_space_underlying(__isl_take isl_space *dim,
1884 : unsigned n_div)
1885 : {
1886 : int i;
1887 :
1888 57730041 : if (!dim)
1889 0 : return NULL;
1890 115460082 : if (n_div == 0 &&
1891 115460082 : dim->nparam == 0 && dim->n_in == 0 && dim->n_id == 0)
1892 57730041 : return isl_space_reset(isl_space_reset(dim, isl_dim_in), isl_dim_out);
1893 0 : dim = isl_space_cow(dim);
1894 0 : if (!dim)
1895 0 : return NULL;
1896 0 : dim->n_out += dim->nparam + dim->n_in + n_div;
1897 0 : dim->nparam = 0;
1898 0 : dim->n_in = 0;
1899 :
1900 0 : for (i = 0; i < dim->n_id; ++i)
1901 0 : isl_id_free(get_id(dim, isl_dim_out, i));
1902 0 : dim->n_id = 0;
1903 0 : dim = isl_space_reset(dim, isl_dim_in);
1904 0 : dim = isl_space_reset(dim, isl_dim_out);
1905 :
1906 0 : return dim;
1907 : }
1908 :
1909 : /* Are the two spaces the same, including positions and names of parameters?
1910 : */
1911 23886361851 : isl_bool isl_space_is_equal(__isl_keep isl_space *space1,
1912 : __isl_keep isl_space *space2)
1913 : {
1914 : isl_bool equal;
1915 :
1916 23886361851 : if (!space1 || !space2)
1917 0 : return isl_bool_error;
1918 23886361851 : if (space1 == space2)
1919 7643545184 : return isl_bool_true;
1920 16242816667 : equal = isl_space_has_equal_params(space1, space2);
1921 16242816667 : if (equal < 0 || !equal)
1922 0 : return equal;
1923 16242816667 : return isl_space_has_equal_tuples(space1, space2);
1924 : }
1925 :
1926 : /* Do the tuples of "space1" correspond to those of the domain of "space2"?
1927 : * That is, is "space1" eqaul to the domain of "space2", ignoring parameters.
1928 : *
1929 : * "space2" is allowed to be a set space, in which case "space1"
1930 : * should be a parameter space.
1931 : */
1932 0 : isl_bool isl_space_has_domain_tuples(__isl_keep isl_space *space1,
1933 : __isl_keep isl_space *space2)
1934 : {
1935 : isl_bool is_set;
1936 :
1937 0 : is_set = isl_space_is_set(space1);
1938 0 : if (is_set < 0 || !is_set)
1939 0 : return is_set;
1940 0 : return isl_space_tuple_is_equal(space1, isl_dim_set,
1941 : space2, isl_dim_in);
1942 : }
1943 :
1944 : /* Is space1 equal to the domain of space2?
1945 : *
1946 : * In the internal version we also allow space2 to be the space of a set,
1947 : * provided space1 is a parameter space.
1948 : */
1949 0 : isl_bool isl_space_is_domain_internal(__isl_keep isl_space *space1,
1950 : __isl_keep isl_space *space2)
1951 : {
1952 : isl_bool equal_params;
1953 :
1954 0 : if (!space1 || !space2)
1955 0 : return isl_bool_error;
1956 0 : equal_params = isl_space_has_equal_params(space1, space2);
1957 0 : if (equal_params < 0 || !equal_params)
1958 0 : return equal_params;
1959 0 : return isl_space_has_domain_tuples(space1, space2);
1960 : }
1961 :
1962 : /* Is space1 equal to the domain of space2?
1963 : */
1964 0 : isl_bool isl_space_is_domain(__isl_keep isl_space *space1,
1965 : __isl_keep isl_space *space2)
1966 : {
1967 0 : if (!space2)
1968 0 : return isl_bool_error;
1969 0 : if (!isl_space_is_map(space2))
1970 0 : return isl_bool_false;
1971 0 : return isl_space_is_domain_internal(space1, space2);
1972 : }
1973 :
1974 : /* Is space1 equal to the range of space2?
1975 : *
1976 : * In the internal version, space2 is allowed to be the space of a set,
1977 : * in which case it should be equal to space1.
1978 : */
1979 0 : isl_bool isl_space_is_range_internal(__isl_keep isl_space *space1,
1980 : __isl_keep isl_space *space2)
1981 : {
1982 : isl_bool equal_params;
1983 :
1984 0 : if (!space1 || !space2)
1985 0 : return isl_bool_error;
1986 0 : if (!isl_space_is_set(space1))
1987 0 : return isl_bool_false;
1988 0 : equal_params = isl_space_has_equal_params(space1, space2);
1989 0 : if (equal_params < 0 || !equal_params)
1990 0 : return equal_params;
1991 0 : return isl_space_tuple_is_equal(space1, isl_dim_set,
1992 : space2, isl_dim_out);
1993 : }
1994 :
1995 : /* Is space1 equal to the range of space2?
1996 : */
1997 0 : isl_bool isl_space_is_range(__isl_keep isl_space *space1,
1998 : __isl_keep isl_space *space2)
1999 : {
2000 0 : if (!space2)
2001 0 : return isl_bool_error;
2002 0 : if (!isl_space_is_map(space2))
2003 0 : return isl_bool_false;
2004 0 : return isl_space_is_range_internal(space1, space2);
2005 : }
2006 :
2007 : /* Update "hash" by hashing in the parameters of "space".
2008 : */
2009 0 : static uint32_t isl_hash_params(uint32_t hash, __isl_keep isl_space *space)
2010 : {
2011 : int i;
2012 : isl_id *id;
2013 :
2014 0 : if (!space)
2015 0 : return hash;
2016 :
2017 0 : isl_hash_byte(hash, space->nparam % 256);
2018 :
2019 0 : for (i = 0; i < space->nparam; ++i) {
2020 0 : id = get_id(space, isl_dim_param, i);
2021 0 : hash = isl_hash_id(hash, id);
2022 : }
2023 :
2024 0 : return hash;
2025 : }
2026 :
2027 : /* Update "hash" by hashing in the tuples of "space".
2028 : * Changes in this function should be reflected in isl_hash_tuples_domain.
2029 : */
2030 0 : static uint32_t isl_hash_tuples(uint32_t hash, __isl_keep isl_space *space)
2031 : {
2032 : isl_id *id;
2033 :
2034 0 : if (!space)
2035 0 : return hash;
2036 :
2037 0 : isl_hash_byte(hash, space->n_in % 256);
2038 0 : isl_hash_byte(hash, space->n_out % 256);
2039 :
2040 0 : id = tuple_id(space, isl_dim_in);
2041 0 : hash = isl_hash_id(hash, id);
2042 0 : id = tuple_id(space, isl_dim_out);
2043 0 : hash = isl_hash_id(hash, id);
2044 :
2045 0 : hash = isl_hash_tuples(hash, space->nested[0]);
2046 0 : hash = isl_hash_tuples(hash, space->nested[1]);
2047 :
2048 0 : return hash;
2049 : }
2050 :
2051 : /* Update "hash" by hashing in the domain tuple of "space".
2052 : * The result of this function is equal to the result of applying
2053 : * isl_hash_tuples to the domain of "space".
2054 : */
2055 0 : static uint32_t isl_hash_tuples_domain(uint32_t hash,
2056 : __isl_keep isl_space *space)
2057 : {
2058 : isl_id *id;
2059 :
2060 0 : if (!space)
2061 0 : return hash;
2062 :
2063 0 : isl_hash_byte(hash, 0);
2064 0 : isl_hash_byte(hash, space->n_in % 256);
2065 :
2066 0 : hash = isl_hash_id(hash, &isl_id_none);
2067 0 : id = tuple_id(space, isl_dim_in);
2068 0 : hash = isl_hash_id(hash, id);
2069 :
2070 0 : hash = isl_hash_tuples(hash, space->nested[0]);
2071 :
2072 0 : return hash;
2073 : }
2074 :
2075 : /* Return a hash value that digests the tuples of "space",
2076 : * i.e., that ignores the parameters.
2077 : */
2078 0 : uint32_t isl_space_get_tuple_hash(__isl_keep isl_space *space)
2079 : {
2080 : uint32_t hash;
2081 :
2082 0 : if (!space)
2083 0 : return 0;
2084 :
2085 0 : hash = isl_hash_init();
2086 0 : hash = isl_hash_tuples(hash, space);
2087 :
2088 0 : return hash;
2089 : }
2090 :
2091 0 : uint32_t isl_space_get_hash(__isl_keep isl_space *space)
2092 : {
2093 : uint32_t hash;
2094 :
2095 0 : if (!space)
2096 0 : return 0;
2097 :
2098 0 : hash = isl_hash_init();
2099 0 : hash = isl_hash_params(hash, space);
2100 0 : hash = isl_hash_tuples(hash, space);
2101 :
2102 0 : return hash;
2103 : }
2104 :
2105 : /* Return the hash value of the domain of "space".
2106 : * That is, isl_space_get_domain_hash(space) is equal to
2107 : * isl_space_get_hash(isl_space_domain(space)).
2108 : */
2109 0 : uint32_t isl_space_get_domain_hash(__isl_keep isl_space *space)
2110 : {
2111 : uint32_t hash;
2112 :
2113 0 : if (!space)
2114 0 : return 0;
2115 :
2116 0 : hash = isl_hash_init();
2117 0 : hash = isl_hash_params(hash, space);
2118 0 : hash = isl_hash_tuples_domain(hash, space);
2119 :
2120 0 : return hash;
2121 : }
2122 :
2123 0 : isl_bool isl_space_is_wrapping(__isl_keep isl_space *dim)
2124 : {
2125 0 : if (!dim)
2126 0 : return isl_bool_error;
2127 :
2128 0 : if (!isl_space_is_set(dim))
2129 0 : return isl_bool_false;
2130 :
2131 0 : return dim->nested[1] != NULL;
2132 : }
2133 :
2134 : /* Is "space" the space of a map where the domain is a wrapped map space?
2135 : */
2136 0 : isl_bool isl_space_domain_is_wrapping(__isl_keep isl_space *space)
2137 : {
2138 0 : if (!space)
2139 0 : return isl_bool_error;
2140 :
2141 0 : if (isl_space_is_set(space))
2142 0 : return isl_bool_false;
2143 :
2144 0 : return space->nested[0] != NULL;
2145 : }
2146 :
2147 : /* Is "space" the space of a map where the range is a wrapped map space?
2148 : */
2149 0 : isl_bool isl_space_range_is_wrapping(__isl_keep isl_space *space)
2150 : {
2151 0 : if (!space)
2152 0 : return isl_bool_error;
2153 :
2154 0 : if (isl_space_is_set(space))
2155 0 : return isl_bool_false;
2156 :
2157 0 : return space->nested[1] != NULL;
2158 : }
2159 :
2160 : /* Is "space" a product of two spaces?
2161 : * That is, is it a wrapping set space or a map space
2162 : * with wrapping domain and range?
2163 : */
2164 0 : isl_bool isl_space_is_product(__isl_keep isl_space *space)
2165 : {
2166 : isl_bool is_set;
2167 : isl_bool is_product;
2168 :
2169 0 : is_set = isl_space_is_set(space);
2170 0 : if (is_set < 0)
2171 0 : return isl_bool_error;
2172 0 : if (is_set)
2173 0 : return isl_space_is_wrapping(space);
2174 0 : is_product = isl_space_domain_is_wrapping(space);
2175 0 : if (is_product < 0 || !is_product)
2176 0 : return is_product;
2177 0 : return isl_space_range_is_wrapping(space);
2178 : }
2179 :
2180 0 : __isl_give isl_space *isl_space_wrap(__isl_take isl_space *dim)
2181 : {
2182 : isl_space *wrap;
2183 :
2184 0 : if (!dim)
2185 0 : return NULL;
2186 :
2187 0 : wrap = isl_space_set_alloc(dim->ctx,
2188 0 : dim->nparam, dim->n_in + dim->n_out);
2189 :
2190 0 : wrap = copy_ids(wrap, isl_dim_param, 0, dim, isl_dim_param);
2191 0 : wrap = copy_ids(wrap, isl_dim_set, 0, dim, isl_dim_in);
2192 0 : wrap = copy_ids(wrap, isl_dim_set, dim->n_in, dim, isl_dim_out);
2193 :
2194 0 : if (!wrap)
2195 0 : goto error;
2196 :
2197 0 : wrap->nested[1] = dim;
2198 :
2199 0 : return wrap;
2200 : error:
2201 0 : isl_space_free(dim);
2202 0 : return NULL;
2203 : }
2204 :
2205 0 : __isl_give isl_space *isl_space_unwrap(__isl_take isl_space *dim)
2206 : {
2207 : isl_space *unwrap;
2208 :
2209 0 : if (!dim)
2210 0 : return NULL;
2211 :
2212 0 : if (!isl_space_is_wrapping(dim))
2213 0 : isl_die(dim->ctx, isl_error_invalid, "not a wrapping space",
2214 : goto error);
2215 :
2216 0 : unwrap = isl_space_copy(dim->nested[1]);
2217 0 : isl_space_free(dim);
2218 :
2219 0 : return unwrap;
2220 : error:
2221 0 : isl_space_free(dim);
2222 0 : return NULL;
2223 : }
2224 :
2225 2578034203 : isl_bool isl_space_is_named_or_nested(__isl_keep isl_space *space,
2226 : enum isl_dim_type type)
2227 : {
2228 2578034203 : if (type != isl_dim_in && type != isl_dim_out)
2229 0 : return isl_bool_false;
2230 2578034203 : if (!space)
2231 0 : return isl_bool_error;
2232 2578034203 : if (space->tuple_id[type - isl_dim_in])
2233 115460082 : return isl_bool_true;
2234 2462574121 : if (space->nested[type - isl_dim_in])
2235 0 : return isl_bool_true;
2236 2462574121 : return isl_bool_false;
2237 : }
2238 :
2239 0 : isl_bool isl_space_may_be_set(__isl_keep isl_space *space)
2240 : {
2241 : isl_bool nested;
2242 :
2243 0 : if (!space)
2244 0 : return isl_bool_error;
2245 0 : if (isl_space_is_set(space))
2246 0 : return isl_bool_true;
2247 0 : if (isl_space_dim(space, isl_dim_in) != 0)
2248 0 : return isl_bool_false;
2249 0 : nested = isl_space_is_named_or_nested(space, isl_dim_in);
2250 0 : if (nested < 0 || nested)
2251 0 : return isl_bool_not(nested);
2252 0 : return isl_bool_true;
2253 : }
2254 :
2255 132757105 : __isl_give isl_space *isl_space_reset(__isl_take isl_space *dim,
2256 : enum isl_dim_type type)
2257 : {
2258 132757105 : if (!isl_space_is_named_or_nested(dim, type))
2259 75027064 : return dim;
2260 :
2261 57730041 : dim = isl_space_cow(dim);
2262 57730041 : if (!dim)
2263 0 : return NULL;
2264 :
2265 57730041 : isl_id_free(dim->tuple_id[type - isl_dim_in]);
2266 57730041 : dim->tuple_id[type - isl_dim_in] = NULL;
2267 57730041 : isl_space_free(dim->nested[type - isl_dim_in]);
2268 57730041 : dim->nested[type - isl_dim_in] = NULL;
2269 :
2270 57730041 : return dim;
2271 : }
2272 :
2273 0 : __isl_give isl_space *isl_space_flatten(__isl_take isl_space *dim)
2274 : {
2275 0 : if (!dim)
2276 0 : return NULL;
2277 0 : if (!dim->nested[0] && !dim->nested[1])
2278 0 : return dim;
2279 :
2280 0 : if (dim->nested[0])
2281 0 : dim = isl_space_reset(dim, isl_dim_in);
2282 0 : if (dim && dim->nested[1])
2283 0 : dim = isl_space_reset(dim, isl_dim_out);
2284 :
2285 0 : return dim;
2286 : }
2287 :
2288 0 : __isl_give isl_space *isl_space_flatten_domain(__isl_take isl_space *space)
2289 : {
2290 0 : if (!space)
2291 0 : return NULL;
2292 0 : if (!space->nested[0])
2293 0 : return space;
2294 :
2295 0 : return isl_space_reset(space, isl_dim_in);
2296 : }
2297 :
2298 0 : __isl_give isl_space *isl_space_flatten_range(__isl_take isl_space *space)
2299 : {
2300 0 : if (!space)
2301 0 : return NULL;
2302 0 : if (!space->nested[1])
2303 0 : return space;
2304 :
2305 0 : return isl_space_reset(space, isl_dim_out);
2306 : }
2307 :
2308 : /* Replace the parameters of dst by those of src.
2309 : */
2310 0 : __isl_give isl_space *isl_space_replace_params(__isl_take isl_space *dst,
2311 : __isl_keep isl_space *src)
2312 : {
2313 : isl_bool equal_params;
2314 0 : enum isl_dim_type type = isl_dim_param;
2315 :
2316 0 : equal_params = isl_space_has_equal_params(dst, src);
2317 0 : if (equal_params < 0)
2318 0 : return isl_space_free(dst);
2319 0 : if (equal_params)
2320 0 : return dst;
2321 :
2322 0 : dst = isl_space_cow(dst);
2323 :
2324 0 : if (!dst || !src)
2325 : goto error;
2326 :
2327 0 : dst = isl_space_drop_dims(dst, type, 0, isl_space_dim(dst, type));
2328 0 : dst = isl_space_add_dims(dst, type, isl_space_dim(src, type));
2329 0 : dst = copy_ids(dst, type, 0, src, type);
2330 :
2331 0 : if (dst) {
2332 : int i;
2333 0 : for (i = 0; i <= 1; ++i) {
2334 0 : if (!dst->nested[i])
2335 0 : continue;
2336 0 : dst->nested[i] = isl_space_replace_params(
2337 : dst->nested[i], src);
2338 0 : if (!dst->nested[i])
2339 0 : goto error;
2340 : }
2341 : }
2342 :
2343 0 : return dst;
2344 : error:
2345 0 : isl_space_free(dst);
2346 0 : return NULL;
2347 : }
2348 :
2349 : /* Given a dimension specification "dim" of a set, create a dimension
2350 : * specification for the lift of the set. In particular, the result
2351 : * is of the form [dim -> local[..]], with n_local variables in the
2352 : * range of the wrapped map.
2353 : */
2354 0 : __isl_give isl_space *isl_space_lift(__isl_take isl_space *dim, unsigned n_local)
2355 : {
2356 : isl_space *local_dim;
2357 :
2358 0 : if (!dim)
2359 0 : return NULL;
2360 :
2361 0 : local_dim = isl_space_dup(dim);
2362 0 : local_dim = isl_space_drop_dims(local_dim, isl_dim_set, 0, dim->n_out);
2363 0 : local_dim = isl_space_add_dims(local_dim, isl_dim_set, n_local);
2364 0 : local_dim = isl_space_set_tuple_name(local_dim, isl_dim_set, "local");
2365 0 : dim = isl_space_join(isl_space_from_domain(dim),
2366 : isl_space_from_range(local_dim));
2367 0 : dim = isl_space_wrap(dim);
2368 0 : dim = isl_space_set_tuple_name(dim, isl_dim_set, "lifted");
2369 :
2370 0 : return dim;
2371 : }
2372 :
2373 0 : isl_bool isl_space_can_zip(__isl_keep isl_space *space)
2374 : {
2375 : isl_bool is_set;
2376 :
2377 0 : is_set = isl_space_is_set(space);
2378 0 : if (is_set < 0)
2379 0 : return isl_bool_error;
2380 0 : if (is_set)
2381 0 : return isl_bool_false;
2382 0 : return isl_space_is_product(space);
2383 : }
2384 :
2385 0 : __isl_give isl_space *isl_space_zip(__isl_take isl_space *dim)
2386 : {
2387 : isl_space *dom, *ran;
2388 : isl_space *dom_dom, *dom_ran, *ran_dom, *ran_ran;
2389 :
2390 0 : if (!isl_space_can_zip(dim))
2391 0 : isl_die(dim->ctx, isl_error_invalid, "dim cannot be zipped",
2392 : goto error);
2393 :
2394 0 : if (!dim)
2395 0 : return NULL;
2396 0 : dom = isl_space_unwrap(isl_space_domain(isl_space_copy(dim)));
2397 0 : ran = isl_space_unwrap(isl_space_range(dim));
2398 0 : dom_dom = isl_space_domain(isl_space_copy(dom));
2399 0 : dom_ran = isl_space_range(dom);
2400 0 : ran_dom = isl_space_domain(isl_space_copy(ran));
2401 0 : ran_ran = isl_space_range(ran);
2402 0 : dom = isl_space_join(isl_space_from_domain(dom_dom),
2403 : isl_space_from_range(ran_dom));
2404 0 : ran = isl_space_join(isl_space_from_domain(dom_ran),
2405 : isl_space_from_range(ran_ran));
2406 0 : return isl_space_join(isl_space_from_domain(isl_space_wrap(dom)),
2407 : isl_space_from_range(isl_space_wrap(ran)));
2408 : error:
2409 0 : isl_space_free(dim);
2410 0 : return NULL;
2411 : }
2412 :
2413 : /* Can we apply isl_space_curry to "space"?
2414 : * That is, does it have a nested relation in its domain?
2415 : */
2416 0 : isl_bool isl_space_can_curry(__isl_keep isl_space *space)
2417 : {
2418 0 : if (!space)
2419 0 : return isl_bool_error;
2420 :
2421 0 : return !!space->nested[0];
2422 : }
2423 :
2424 : /* Given a space (A -> B) -> C, return the corresponding space
2425 : * A -> (B -> C).
2426 : */
2427 0 : __isl_give isl_space *isl_space_curry(__isl_take isl_space *space)
2428 : {
2429 : isl_space *dom, *ran;
2430 : isl_space *dom_dom, *dom_ran;
2431 :
2432 0 : if (!space)
2433 0 : return NULL;
2434 :
2435 0 : if (!isl_space_can_curry(space))
2436 0 : isl_die(space->ctx, isl_error_invalid,
2437 : "space cannot be curried", goto error);
2438 :
2439 0 : dom = isl_space_unwrap(isl_space_domain(isl_space_copy(space)));
2440 0 : ran = isl_space_range(space);
2441 0 : dom_dom = isl_space_domain(isl_space_copy(dom));
2442 0 : dom_ran = isl_space_range(dom);
2443 0 : ran = isl_space_join(isl_space_from_domain(dom_ran),
2444 : isl_space_from_range(ran));
2445 0 : return isl_space_join(isl_space_from_domain(dom_dom),
2446 : isl_space_from_range(isl_space_wrap(ran)));
2447 : error:
2448 0 : isl_space_free(space);
2449 0 : return NULL;
2450 : }
2451 :
2452 : /* Can isl_space_range_curry be applied to "space"?
2453 : * That is, does it have a nested relation in its range,
2454 : * the domain of which is itself a nested relation?
2455 : */
2456 0 : isl_bool isl_space_can_range_curry(__isl_keep isl_space *space)
2457 : {
2458 : isl_bool can;
2459 :
2460 0 : if (!space)
2461 0 : return isl_bool_error;
2462 0 : can = isl_space_range_is_wrapping(space);
2463 0 : if (can < 0 || !can)
2464 0 : return can;
2465 0 : return isl_space_can_curry(space->nested[1]);
2466 : }
2467 :
2468 : /* Given a space A -> ((B -> C) -> D), return the corresponding space
2469 : * A -> (B -> (C -> D)).
2470 : */
2471 0 : __isl_give isl_space *isl_space_range_curry(__isl_take isl_space *space)
2472 : {
2473 0 : if (!space)
2474 0 : return NULL;
2475 :
2476 0 : if (!isl_space_can_range_curry(space))
2477 0 : isl_die(isl_space_get_ctx(space), isl_error_invalid,
2478 : "space range cannot be curried",
2479 : return isl_space_free(space));
2480 :
2481 0 : space = isl_space_cow(space);
2482 0 : if (!space)
2483 0 : return NULL;
2484 0 : space->nested[1] = isl_space_curry(space->nested[1]);
2485 0 : if (!space->nested[1])
2486 0 : return isl_space_free(space);
2487 :
2488 0 : return space;
2489 : }
2490 :
2491 : /* Can we apply isl_space_uncurry to "space"?
2492 : * That is, does it have a nested relation in its range?
2493 : */
2494 0 : isl_bool isl_space_can_uncurry(__isl_keep isl_space *space)
2495 : {
2496 0 : if (!space)
2497 0 : return isl_bool_error;
2498 :
2499 0 : return !!space->nested[1];
2500 : }
2501 :
2502 : /* Given a space A -> (B -> C), return the corresponding space
2503 : * (A -> B) -> C.
2504 : */
2505 0 : __isl_give isl_space *isl_space_uncurry(__isl_take isl_space *space)
2506 : {
2507 : isl_space *dom, *ran;
2508 : isl_space *ran_dom, *ran_ran;
2509 :
2510 0 : if (!space)
2511 0 : return NULL;
2512 :
2513 0 : if (!isl_space_can_uncurry(space))
2514 0 : isl_die(space->ctx, isl_error_invalid,
2515 : "space cannot be uncurried",
2516 : return isl_space_free(space));
2517 :
2518 0 : dom = isl_space_domain(isl_space_copy(space));
2519 0 : ran = isl_space_unwrap(isl_space_range(space));
2520 0 : ran_dom = isl_space_domain(isl_space_copy(ran));
2521 0 : ran_ran = isl_space_range(ran);
2522 0 : dom = isl_space_join(isl_space_from_domain(dom),
2523 : isl_space_from_range(ran_dom));
2524 0 : return isl_space_join(isl_space_from_domain(isl_space_wrap(dom)),
2525 : isl_space_from_range(ran_ran));
2526 : }
2527 :
2528 0 : isl_bool isl_space_has_named_params(__isl_keep isl_space *space)
2529 : {
2530 : int i;
2531 : unsigned off;
2532 :
2533 0 : if (!space)
2534 0 : return isl_bool_error;
2535 0 : if (space->nparam == 0)
2536 0 : return isl_bool_true;
2537 0 : off = isl_space_offset(space, isl_dim_param);
2538 0 : if (off + space->nparam > space->n_id)
2539 0 : return isl_bool_false;
2540 0 : for (i = 0; i < space->nparam; ++i)
2541 0 : if (!space->ids[off + i])
2542 0 : return isl_bool_false;
2543 0 : return isl_bool_true;
2544 : }
2545 :
2546 : /* Check that "space" has only named parameters, reporting an error
2547 : * if it does not.
2548 : */
2549 0 : isl_stat isl_space_check_named_params(__isl_keep isl_space *space)
2550 : {
2551 : isl_bool named;
2552 :
2553 0 : named = isl_space_has_named_params(space);
2554 0 : if (named < 0)
2555 0 : return isl_stat_error;
2556 0 : if (!named)
2557 0 : isl_die(isl_space_get_ctx(space), isl_error_invalid,
2558 : "unexpected unnamed parameters", return isl_stat_error);
2559 :
2560 0 : return isl_stat_ok;
2561 : }
2562 :
2563 : /* Align the initial parameters of space1 to match the order in space2.
2564 : */
2565 0 : __isl_give isl_space *isl_space_align_params(__isl_take isl_space *space1,
2566 : __isl_take isl_space *space2)
2567 : {
2568 : isl_reordering *exp;
2569 :
2570 0 : if (isl_space_check_named_params(space1) < 0 ||
2571 0 : isl_space_check_named_params(space2) < 0)
2572 : goto error;
2573 :
2574 0 : exp = isl_parameter_alignment_reordering(space1, space2);
2575 0 : exp = isl_reordering_extend_space(exp, space1);
2576 0 : isl_space_free(space2);
2577 0 : space1 = isl_reordering_get_space(exp);
2578 0 : isl_reordering_free(exp);
2579 0 : return space1;
2580 : error:
2581 0 : isl_space_free(space1);
2582 0 : isl_space_free(space2);
2583 0 : return NULL;
2584 : }
2585 :
2586 : /* Given the space of set (domain), construct a space for a map
2587 : * with as domain the given space and as range the range of "model".
2588 : */
2589 0 : __isl_give isl_space *isl_space_extend_domain_with_range(
2590 : __isl_take isl_space *space, __isl_take isl_space *model)
2591 : {
2592 0 : if (!model)
2593 0 : goto error;
2594 :
2595 0 : space = isl_space_from_domain(space);
2596 0 : space = isl_space_add_dims(space, isl_dim_out,
2597 : isl_space_dim(model, isl_dim_out));
2598 0 : if (isl_space_has_tuple_id(model, isl_dim_out))
2599 0 : space = isl_space_set_tuple_id(space, isl_dim_out,
2600 : isl_space_get_tuple_id(model, isl_dim_out));
2601 0 : if (!space)
2602 0 : goto error;
2603 0 : if (model->nested[1]) {
2604 0 : isl_space *nested = isl_space_copy(model->nested[1]);
2605 : int n_nested, n_space;
2606 0 : nested = isl_space_align_params(nested, isl_space_copy(space));
2607 0 : n_nested = isl_space_dim(nested, isl_dim_param);
2608 0 : n_space = isl_space_dim(space, isl_dim_param);
2609 0 : if (n_nested > n_space)
2610 0 : nested = isl_space_drop_dims(nested, isl_dim_param,
2611 0 : n_space, n_nested - n_space);
2612 0 : if (!nested)
2613 0 : goto error;
2614 0 : space->nested[1] = nested;
2615 : }
2616 0 : isl_space_free(model);
2617 0 : return space;
2618 : error:
2619 0 : isl_space_free(model);
2620 0 : isl_space_free(space);
2621 0 : return NULL;
2622 : }
2623 :
2624 : /* Compare the "type" dimensions of two isl_spaces.
2625 : *
2626 : * The order is fairly arbitrary.
2627 : */
2628 94974777 : static int isl_space_cmp_type(__isl_keep isl_space *space1,
2629 : __isl_keep isl_space *space2, enum isl_dim_type type)
2630 : {
2631 : int cmp;
2632 : isl_space *nested1, *nested2;
2633 :
2634 94974777 : if (isl_space_dim(space1, type) != isl_space_dim(space2, type))
2635 0 : return isl_space_dim(space1, type) -
2636 0 : isl_space_dim(space2, type);
2637 :
2638 94974777 : cmp = isl_id_cmp(tuple_id(space1, type), tuple_id(space2, type));
2639 94974777 : if (cmp != 0)
2640 0 : return cmp;
2641 :
2642 94974777 : nested1 = nested(space1, type);
2643 94974777 : nested2 = nested(space2, type);
2644 94974777 : if (!nested1 != !nested2)
2645 0 : return !nested1 - !nested2;
2646 :
2647 94974777 : if (nested1)
2648 0 : return isl_space_cmp(nested1, nested2);
2649 :
2650 94974777 : return 0;
2651 : }
2652 :
2653 : /* Compare two isl_spaces.
2654 : *
2655 : * The order is fairly arbitrary.
2656 : */
2657 732451979 : int isl_space_cmp(__isl_keep isl_space *space1, __isl_keep isl_space *space2)
2658 : {
2659 : int i;
2660 : int cmp;
2661 :
2662 732451979 : if (space1 == space2)
2663 700793720 : return 0;
2664 31658259 : if (!space1)
2665 0 : return -1;
2666 31658259 : if (!space2)
2667 0 : return 1;
2668 :
2669 31658259 : cmp = isl_space_cmp_type(space1, space2, isl_dim_param);
2670 31658259 : if (cmp != 0)
2671 0 : return cmp;
2672 31658259 : cmp = isl_space_cmp_type(space1, space2, isl_dim_in);
2673 31658259 : if (cmp != 0)
2674 0 : return cmp;
2675 31658259 : cmp = isl_space_cmp_type(space1, space2, isl_dim_out);
2676 31658259 : if (cmp != 0)
2677 0 : return cmp;
2678 :
2679 31658259 : if (!space1->ids && !space2->ids)
2680 31658259 : return 0;
2681 :
2682 0 : for (i = 0; i < n(space1, isl_dim_param); ++i) {
2683 0 : cmp = isl_id_cmp(get_id(space1, isl_dim_param, i),
2684 : get_id(space2, isl_dim_param, i));
2685 0 : if (cmp != 0)
2686 0 : return cmp;
2687 : }
2688 :
2689 0 : return 0;
2690 : }
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