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add isl_mat_diag
[isl.git] / isl_pw_templ.c
bloba446c43c12887610feb2419a6ee0a982393d2891
1 #define xFN(TYPE,NAME) TYPE ## _ ## NAME
2 #define FN(TYPE,NAME) xFN(TYPE,NAME)
3 #define xS(TYPE,NAME) struct TYPE ## _ ## NAME
4 #define S(TYPE,NAME) xS(TYPE,NAME)
5
6 #ifdef HAS_TYPE
7 static __isl_give PW *FN(PW,alloc_)(__isl_take isl_dim *dim,
8 enum isl_fold type, int n)
9 #else
10 static __isl_give PW *FN(PW,alloc_)(__isl_take isl_dim *dim, int n)
11 #endif
12 {
13 isl_ctx *ctx;
14 struct PW *pw;
15
16 if (!dim)
17 return NULL;
18 ctx = isl_dim_get_ctx(dim);
19 isl_assert(ctx, n >= 0, goto error);
20 pw = isl_alloc(ctx, struct PW,
21 sizeof(struct PW) + (n - 1) * sizeof(S(PW,piece)));
22 if (!pw)
23 goto error;
24
25 pw->ref = 1;
26 #ifdef HAS_TYPE
27 pw->type = type;
28 #endif
29 pw->size = n;
30 pw->n = 0;
31 pw->dim = dim;
32 return pw;
33 error:
34 isl_dim_free(dim);
35 return NULL;
36 }
37
38 #ifdef HAS_TYPE
39 __isl_give PW *FN(PW,ZERO)(__isl_take isl_dim *dim, enum isl_fold type)
40 {
41 return FN(PW,alloc_)(dim, type, 0);
42 }
43 #else
44 __isl_give PW *FN(PW,ZERO)(__isl_take isl_dim *dim)
45 {
46 return FN(PW,alloc_)(dim, 0);
47 }
48 #endif
49
50 __isl_give PW *FN(PW,add_piece)(__isl_take PW *pw,
51 __isl_take isl_set *set, __isl_take EL *el)
52 {
53 isl_ctx *ctx;
54 isl_dim *el_dim = NULL;
55
56 if (!pw || !set || !el)
57 goto error;
58
59 if (isl_set_plain_is_empty(set) || FN(EL,EL_IS_ZERO)(el)) {
60 isl_set_free(set);
61 FN(EL,free)(el);
62 return pw;
63 }
64
65 ctx = isl_set_get_ctx(set);
66 #ifdef HAS_TYPE
67 if (pw->type != el->type)
68 isl_die(ctx, isl_error_invalid, "fold types don't match",
69 goto error);
70 #endif
71 el_dim = FN(EL,get_dim(el));
72 isl_assert(ctx, isl_dim_equal(pw->dim, el_dim), goto error);
73 isl_assert(ctx, pw->n < pw->size, goto error);
74
75 pw->p[pw->n].set = set;
76 pw->p[pw->n].FIELD = el;
77 pw->n++;
78
79 isl_dim_free(el_dim);
80 return pw;
81 error:
82 isl_dim_free(el_dim);
83 FN(PW,free)(pw);
84 isl_set_free(set);
85 FN(EL,free)(el);
86 return NULL;
87 }
88
89 #ifdef HAS_TYPE
90 __isl_give PW *FN(PW,alloc)(enum isl_fold type,
91 __isl_take isl_set *set, __isl_take EL *el)
92 #else
93 __isl_give PW *FN(PW,alloc)(__isl_take isl_set *set, __isl_take EL *el)
94 #endif
95 {
96 PW *pw;
97
98 if (!set || !el)
99 goto error;
100
101 #ifdef HAS_TYPE
102 pw = FN(PW,alloc_)(isl_set_get_dim(set), type, 1);
103 #else
104 pw = FN(PW,alloc_)(isl_set_get_dim(set), 1);
105 #endif
106
107 return FN(PW,add_piece)(pw, set, el);
108 error:
109 isl_set_free(set);
110 FN(EL,free)(el);
111 return NULL;
112 }
113
114 __isl_give PW *FN(PW,dup)(__isl_keep PW *pw)
115 {
116 int i;
117 PW *dup;
118
119 if (!pw)
120 return NULL;
121
122 #ifdef HAS_TYPE
123 dup = FN(PW,alloc_)(isl_dim_copy(pw->dim), pw->type, pw->n);
124 #else
125 dup = FN(PW,alloc_)(isl_dim_copy(pw->dim), pw->n);
126 #endif
127 if (!dup)
128 return NULL;
129
130 for (i = 0; i < pw->n; ++i)
131 dup = FN(PW,add_piece)(dup, isl_set_copy(pw->p[i].set),
132 FN(EL,copy)(pw->p[i].FIELD));
133
134 return dup;
135 }
136
137 __isl_give PW *FN(PW,cow)(__isl_take PW *pw)
138 {
139 if (!pw)
140 return NULL;
141
142 if (pw->ref == 1)
143 return pw;
144 pw->ref--;
145 return FN(PW,dup)(pw);
146 }
147
148 __isl_give PW *FN(PW,copy)(__isl_keep PW *pw)
149 {
150 if (!pw)
151 return NULL;
152
153 pw->ref++;
154 return pw;
155 }
156
157 void *FN(PW,free)(__isl_take PW *pw)
158 {
159 int i;
160
161 if (!pw)
162 return NULL;
163 if (--pw->ref > 0)
164 return NULL;
165
166 for (i = 0; i < pw->n; ++i) {
167 isl_set_free(pw->p[i].set);
168 FN(EL,free)(pw->p[i].FIELD);
169 }
170 isl_dim_free(pw->dim);
171 free(pw);
172
173 return NULL;
174 }
175
176 int FN(PW,IS_ZERO)(__isl_keep PW *pw)
177 {
178 if (!pw)
179 return -1;
180
181 return pw->n == 0;
182 }
183
184 __isl_give PW *FN(PW,add)(__isl_take PW *pw1, __isl_take PW *pw2)
185 {
186 int i, j, n;
187 struct PW *res;
188 isl_ctx *ctx;
189 isl_set *set;
190
191 if (!pw1 || !pw2)
192 goto error;
193
194 ctx = isl_dim_get_ctx(pw1->dim);
195 #ifdef HAS_TYPE
196 if (pw1->type != pw2->type)
197 isl_die(ctx, isl_error_invalid,
198 "fold types don't match", goto error);
199 #endif
200 isl_assert(ctx, isl_dim_equal(pw1->dim, pw2->dim), goto error);
201
202 if (FN(PW,IS_ZERO)(pw1)) {
203 FN(PW,free)(pw1);
204 return pw2;
205 }
206
207 if (FN(PW,IS_ZERO)(pw2)) {
208 FN(PW,free)(pw2);
209 return pw1;
210 }
211
212 n = (pw1->n + 1) * (pw2->n + 1);
213 #ifdef HAS_TYPE
214 res = FN(PW,alloc_)(isl_dim_copy(pw1->dim), pw1->type, n);
215 #else
216 res = FN(PW,alloc_)(isl_dim_copy(pw1->dim), n);
217 #endif
218
219 for (i = 0; i < pw1->n; ++i) {
220 set = isl_set_copy(pw1->p[i].set);
221 for (j = 0; j < pw2->n; ++j) {
222 struct isl_set *common;
223 EL *sum;
224 set = isl_set_subtract(set,
225 isl_set_copy(pw2->p[j].set));
226 common = isl_set_intersect(isl_set_copy(pw1->p[i].set),
227 isl_set_copy(pw2->p[j].set));
228 if (isl_set_plain_is_empty(common)) {
229 isl_set_free(common);
230 continue;
231 }
232
233 sum = FN(EL,add_on_domain)(common,
234 FN(EL,copy)(pw1->p[i].FIELD),
235 FN(EL,copy)(pw2->p[j].FIELD));
236
237 res = FN(PW,add_piece)(res, common, sum);
238 }
239 res = FN(PW,add_piece)(res, set, FN(EL,copy)(pw1->p[i].FIELD));
240 }
241
242 for (j = 0; j < pw2->n; ++j) {
243 set = isl_set_copy(pw2->p[j].set);
244 for (i = 0; i < pw1->n; ++i)
245 set = isl_set_subtract(set,
246 isl_set_copy(pw1->p[i].set));
247 res = FN(PW,add_piece)(res, set, FN(EL,copy)(pw2->p[j].FIELD));
248 }
249
250 FN(PW,free)(pw1);
251 FN(PW,free)(pw2);
252
253 return res;
254 error:
255 FN(PW,free)(pw1);
256 FN(PW,free)(pw2);
257 return NULL;
258 }
259
260 __isl_give PW *FN(PW,add_disjoint)(__isl_take PW *pw1, __isl_take PW *pw2)
261 {
262 int i;
263 isl_ctx *ctx;
264 PW *res;
265
266 if (!pw1 || !pw2)
267 goto error;
268
269 ctx = isl_dim_get_ctx(pw1->dim);
270 #ifdef HAS_TYPE
271 if (pw1->type != pw2->type)
272 isl_die(ctx, isl_error_invalid,
273 "fold types don't match", goto error);
274 #endif
275 isl_assert(ctx, isl_dim_equal(pw1->dim, pw2->dim), goto error);
276
277 if (FN(PW,IS_ZERO)(pw1)) {
278 FN(PW,free)(pw1);
279 return pw2;
280 }
281
282 if (FN(PW,IS_ZERO)(pw2)) {
283 FN(PW,free)(pw2);
284 return pw1;
285 }
286
287 #ifdef HAS_TYPE
288 res = FN(PW,alloc_)(isl_dim_copy(pw1->dim), pw1->type, pw1->n + pw2->n);
289 #else
290 res = FN(PW,alloc_)(isl_dim_copy(pw1->dim), pw1->n + pw2->n);
291 #endif
292
293 for (i = 0; i < pw1->n; ++i)
294 res = FN(PW,add_piece)(res,
295 isl_set_copy(pw1->p[i].set),
296 FN(EL,copy)(pw1->p[i].FIELD));
297
298 for (i = 0; i < pw2->n; ++i)
299 res = FN(PW,add_piece)(res,
300 isl_set_copy(pw2->p[i].set),
301 FN(EL,copy)(pw2->p[i].FIELD));
302
303 FN(PW,free)(pw1);
304 FN(PW,free)(pw2);
305
306 return res;
307 error:
308 FN(PW,free)(pw1);
309 FN(PW,free)(pw2);
310 return NULL;
311 }
312
313 #ifndef NO_NEG
314 __isl_give PW *FN(PW,neg)(__isl_take PW *pw)
315 {
316 int i;
317
318 if (!pw)
319 return NULL;
320
321 if (FN(PW,IS_ZERO)(pw))
322 return pw;
323
324 pw = FN(PW,cow)(pw);
325 if (!pw)
326 return NULL;
327
328 for (i = 0; i < pw->n; ++i) {
329 pw->p[i].FIELD = FN(EL,neg)(pw->p[i].FIELD);
330 if (!pw->p[i].FIELD)
331 return FN(PW,free)(pw);
332 }
333
334 return pw;
335 }
336
337 __isl_give PW *FN(PW,sub)(__isl_take PW *pw1, __isl_take PW *pw2)
338 {
339 return FN(PW,add)(pw1, FN(PW,neg)(pw2));
340 }
341 #endif
342
343 #ifndef NO_EVAL
344 __isl_give isl_qpolynomial *FN(PW,eval)(__isl_take PW *pw,
345 __isl_take isl_point *pnt)
346 {
347 int i;
348 int found = 0;
349 isl_ctx *ctx;
350 isl_dim *pnt_dim = NULL;
351 isl_qpolynomial *qp;
352
353 if (!pw || !pnt)
354 goto error;
355 ctx = isl_point_get_ctx(pnt);
356 pnt_dim = isl_point_get_dim(pnt);
357 isl_assert(ctx, isl_dim_equal(pnt_dim, pw->dim), goto error);
358
359 for (i = 0; i < pw->n; ++i) {
360 found = isl_set_contains_point(pw->p[i].set, pnt);
361 if (found < 0)
362 goto error;
363 if (found)
364 break;
365 }
366 if (found)
367 qp = FN(EL,eval)(FN(EL,copy)(pw->p[i].FIELD),
368 isl_point_copy(pnt));
369 else
370 qp = isl_qpolynomial_zero(isl_dim_copy(pw->dim));
371 FN(PW,free)(pw);
372 isl_dim_free(pnt_dim);
373 isl_point_free(pnt);
374 return qp;
375 error:
376 FN(PW,free)(pw);
377 isl_dim_free(pnt_dim);
378 isl_point_free(pnt);
379 return NULL;
380 }
381 #endif
382
383 __isl_give isl_set *FN(PW,domain)(__isl_take PW *pw)
384 {
385 int i;
386 isl_set *dom;
387
388 if (!pw)
389 return NULL;
390
391 dom = isl_set_empty(isl_dim_copy(pw->dim));
392 for (i = 0; i < pw->n; ++i)
393 dom = isl_set_union_disjoint(dom, isl_set_copy(pw->p[i].set));
394
395 FN(PW,free)(pw);
396
397 return dom;
398 }
399
400 __isl_give PW *FN(PW,intersect_domain)(__isl_take PW *pw, __isl_take isl_set *set)
401 {
402 int i;
403
404 if (!pw || !set)
405 goto error;
406
407 if (pw->n == 0) {
408 isl_set_free(set);
409 return pw;
410 }
411
412 pw = FN(PW,cow)(pw);
413 if (!pw)
414 goto error;
415
416 for (i = pw->n - 1; i >= 0; --i) {
417 isl_basic_set *aff;
418 pw->p[i].set = isl_set_intersect(pw->p[i].set, isl_set_copy(set));
419 if (!pw->p[i].set)
420 goto error;
421 aff = isl_set_affine_hull(isl_set_copy(pw->p[i].set));
422 pw->p[i].FIELD = FN(EL,substitute_equalities)(pw->p[i].FIELD,
423 aff);
424 if (isl_set_plain_is_empty(pw->p[i].set)) {
425 isl_set_free(pw->p[i].set);
426 FN(EL,free)(pw->p[i].FIELD);
427 if (i != pw->n - 1)
428 pw->p[i] = pw->p[pw->n - 1];
429 pw->n--;
430 }
431 }
432
433 isl_set_free(set);
434 return pw;
435 error:
436 isl_set_free(set);
437 FN(PW,free)(pw);
438 return NULL;
439 }
440
441 __isl_give PW *FN(PW,gist)(__isl_take PW *pw, __isl_take isl_set *context)
442 {
443 int i;
444 isl_basic_set *hull = NULL;
445
446 if (!pw || !context)
447 goto error;
448
449 if (pw->n == 0) {
450 isl_set_free(context);
451 return pw;
452 }
453
454 context = isl_set_compute_divs(context);
455 hull = isl_set_simple_hull(isl_set_copy(context));
456
457 pw = FN(PW,cow)(pw);
458 if (!pw)
459 goto error;
460
461 for (i = pw->n - 1; i >= 0; --i) {
462 pw->p[i].set = isl_set_intersect(pw->p[i].set,
463 isl_set_copy(context));
464 if (!pw->p[i].set)
465 goto error;
466 pw->p[i].FIELD = FN(EL,gist)(pw->p[i].FIELD,
467 isl_set_copy(pw->p[i].set));
468 pw->p[i].set = isl_set_gist_basic_set(pw->p[i].set,
469 isl_basic_set_copy(hull));
470 if (!pw->p[i].set)
471 goto error;
472 if (isl_set_plain_is_empty(pw->p[i].set)) {
473 isl_set_free(pw->p[i].set);
474 FN(EL,free)(pw->p[i].FIELD);
475 if (i != pw->n - 1)
476 pw->p[i] = pw->p[pw->n - 1];
477 pw->n--;
478 }
479 }
480
481 isl_basic_set_free(hull);
482 isl_set_free(context);
483
484 return pw;
485 error:
486 FN(PW,free)(pw);
487 isl_basic_set_free(hull);
488 isl_set_free(context);
489 return NULL;
490 }
491
492 __isl_give PW *FN(PW,coalesce)(__isl_take PW *pw)
493 {
494 int i, j;
495
496 if (!pw)
497 return NULL;
498 if (pw->n == 0)
499 return pw;
500
501 for (i = pw->n - 1; i >= 0; --i) {
502 for (j = i - 1; j >= 0; --j) {
503 if (!FN(EL,plain_is_equal)(pw->p[i].FIELD,
504 pw->p[j].FIELD))
505 continue;
506 pw->p[j].set = isl_set_union(pw->p[j].set,
507 pw->p[i].set);
508 FN(EL,free)(pw->p[i].FIELD);
509 if (i != pw->n - 1)
510 pw->p[i] = pw->p[pw->n - 1];
511 pw->n--;
512 break;
513 }
514 if (j >= 0)
515 continue;
516 pw->p[i].set = isl_set_coalesce(pw->p[i].set);
517 if (!pw->p[i].set)
518 goto error;
519 }
520
521 return pw;
522 error:
523 FN(PW,free)(pw);
524 return NULL;
525 }
526
527 isl_ctx *FN(PW,get_ctx)(__isl_keep PW *pw)
528 {
529 return pw ? isl_dim_get_ctx(pw->dim) : NULL;
530 }
531
532 #ifndef NO_INVOLVES_DIMS
533 int FN(PW,involves_dims)(__isl_keep PW *pw, enum isl_dim_type type,
534 unsigned first, unsigned n)
535 {
536 int i;
537
538 if (!pw)
539 return -1;
540 if (pw->n == 0 || n == 0)
541 return 0;
542 for (i = 0; i < pw->n; ++i) {
543 int involves = FN(EL,involves_dims)(pw->p[i].FIELD,
544 type, first, n);
545 if (involves < 0 || involves)
546 return involves;
547 involves = isl_set_involves_dims(pw->p[i].set, type, first, n);
548 if (involves < 0 || involves)
549 return involves;
550 }
551 return 0;
552 }
553 #endif
554
555 __isl_give PW *FN(PW,set_dim_name)(__isl_take PW *pw,
556 enum isl_dim_type type, unsigned pos, const char *s)
557 {
558 int i;
559
560 pw = FN(PW,cow)(pw);
561 if (!pw)
562 return NULL;
563
564 pw->dim = isl_dim_set_name(pw->dim, type, pos, s);
565 if (!pw->dim)
566 goto error;
567
568 for (i = 0; i < pw->n; ++i) {
569 pw->p[i].set = isl_set_set_dim_name(pw->p[i].set, type, pos, s);
570 if (!pw->p[i].set)
571 goto error;
572 pw->p[i].FIELD = FN(EL,set_dim_name)(pw->p[i].FIELD, type, pos, s);
573 if (!pw->p[i].FIELD)
574 goto error;
575 }
576
577 return pw;
578 error:
579 FN(PW,free)(pw);
580 return NULL;
581 }
582
583 #ifndef NO_DROP_DIMS
584 __isl_give PW *FN(PW,drop_dims)(__isl_take PW *pw,
585 enum isl_dim_type type, unsigned first, unsigned n)
586 {
587 int i;
588
589 if (!pw)
590 return NULL;
591 if (n == 0 && !isl_dim_get_tuple_name(pw->dim, type))
592 return pw;
593
594 pw = FN(PW,cow)(pw);
595 if (!pw)
596 return NULL;
597 pw->dim = isl_dim_drop(pw->dim, type, first, n);
598 if (!pw->dim)
599 goto error;
600 for (i = 0; i < pw->n; ++i) {
601 pw->p[i].set = isl_set_drop(pw->p[i].set, type, first, n);
602 if (!pw->p[i].set)
603 goto error;
604 pw->p[i].FIELD = FN(EL,drop_dims)(pw->p[i].FIELD, type, first, n);
605 if (!pw->p[i].FIELD)
606 goto error;
607 }
608
609 return pw;
610 error:
611 FN(PW,free)(pw);
612 return NULL;
613 }
614 #endif
615
616 #ifndef NO_INSERT_DIMS
617 __isl_give PW *FN(PW,insert_dims)(__isl_take PW *pw, enum isl_dim_type type,
618 unsigned first, unsigned n)
619 {
620 int i;
621
622 if (!pw)
623 return NULL;
624 if (n == 0 && !isl_dim_is_named_or_nested(pw->dim, type))
625 return pw;
626
627 pw = FN(PW,cow)(pw);
628 if (!pw)
629 return NULL;
630
631 pw->dim = isl_dim_insert(pw->dim, type, first, n);
632 if (!pw->dim)
633 goto error;
634
635 for (i = 0; i < pw->n; ++i) {
636 pw->p[i].set = isl_set_insert(pw->p[i].set, type, first, n);
637 if (!pw->p[i].set)
638 goto error;
639 pw->p[i].FIELD = FN(EL,insert_dims)(pw->p[i].FIELD,
640 type, first, n);
641 if (!pw->p[i].FIELD)
642 goto error;
643 }
644
645 return pw;
646 error:
647 FN(PW,free)(pw);
648 return NULL;
649 }
650 #endif
651
652 __isl_give PW *FN(PW,fix_dim)(__isl_take PW *pw,
653 enum isl_dim_type type, unsigned pos, isl_int v)
654 {
655 int i;
656
657 if (!pw)
658 return NULL;
659
660 pw = FN(PW,cow)(pw);
661 if (!pw)
662 return NULL;
663 for (i = 0; i < pw->n; ++i) {
664 pw->p[i].set = isl_set_fix(pw->p[i].set, type, pos, v);
665 if (!pw->p[i].set)
666 goto error;
667 }
668
669 return pw;
670 error:
671 FN(PW,free)(pw);
672 return NULL;
673 }
674
675 unsigned FN(PW,dim)(__isl_keep PW *pw, enum isl_dim_type type)
676 {
677 return pw ? isl_dim_size(pw->dim, type) : 0;
678 }
679
680 __isl_give PW *FN(PW,split_dims)(__isl_take PW *pw,
681 enum isl_dim_type type, unsigned first, unsigned n)
682 {
683 int i;
684
685 if (!pw)
686 return NULL;
687 if (n == 0)
688 return pw;
689
690 pw = FN(PW,cow)(pw);
691 if (!pw)
692 return NULL;
693 if (!pw->dim)
694 goto error;
695 for (i = 0; i < pw->n; ++i) {
696 pw->p[i].set = isl_set_split_dims(pw->p[i].set, type, first, n);
697 if (!pw->p[i].set)
698 goto error;
699 }
700
701 return pw;
702 error:
703 FN(PW,free)(pw);
704 return NULL;
705 }
706
707 #ifndef NO_OPT
708 /* Compute the maximal value attained by the piecewise quasipolynomial
709 * on its domain or zero if the domain is empty.
710 * In the worst case, the domain is scanned completely,
711 * so the domain is assumed to be bounded.
712 */
713 __isl_give isl_qpolynomial *FN(PW,opt)(__isl_take PW *pw, int max)
714 {
715 int i;
716 isl_qpolynomial *opt;
717
718 if (!pw)
719 return NULL;
720
721 if (pw->n == 0) {
722 isl_dim *dim = isl_dim_copy(pw->dim);
723 FN(PW,free)(pw);
724 return isl_qpolynomial_zero(dim);
725 }
726
727 opt = FN(EL,opt_on_domain)(FN(EL,copy)(pw->p[0].FIELD),
728 isl_set_copy(pw->p[0].set), max);
729 for (i = 1; i < pw->n; ++i) {
730 isl_qpolynomial *opt_i;
731 opt_i = FN(EL,opt_on_domain)(FN(EL,copy)(pw->p[i].FIELD),
732 isl_set_copy(pw->p[i].set), max);
733 if (max)
734 opt = isl_qpolynomial_max_cst(opt, opt_i);
735 else
736 opt = isl_qpolynomial_min_cst(opt, opt_i);
737 }
738
739 FN(PW,free)(pw);
740 return opt;
741 }
742
743 __isl_give isl_qpolynomial *FN(PW,max)(__isl_take PW *pw)
744 {
745 return FN(PW,opt)(pw, 1);
746 }
747
748 __isl_give isl_qpolynomial *FN(PW,min)(__isl_take PW *pw)
749 {
750 return FN(PW,opt)(pw, 0);
751 }
752 #endif
753
754 __isl_give isl_dim *FN(PW,get_dim)(__isl_keep PW *pw)
755 {
756 return pw ? isl_dim_copy(pw->dim) : NULL;
757 }
758
759 #ifndef NO_RESET_DIM
760 __isl_give PW *FN(PW,reset_dim)(__isl_take PW *pw, __isl_take isl_dim *dim)
761 {
762 int i;
763
764 pw = FN(PW,cow)(pw);
765 if (!pw || !dim)
766 goto error;
767
768 for (i = 0; i < pw->n; ++i) {
769 pw->p[i].set = isl_set_reset_dim(pw->p[i].set,
770 isl_dim_copy(dim));
771 if (!pw->p[i].set)
772 goto error;
773 pw->p[i].FIELD = FN(EL,reset_dim)(pw->p[i].FIELD,
774 isl_dim_copy(dim));
775 if (!pw->p[i].FIELD)
776 goto error;
777 }
778 isl_dim_free(pw->dim);
779 pw->dim = dim;
780
781 return pw;
782 error:
783 isl_dim_free(dim);
784 FN(PW,free)(pw);
785 return NULL;
786 }
787 #endif
788
789 int FN(PW,has_equal_dim)(__isl_keep PW *pw1, __isl_keep PW *pw2)
790 {
791 if (!pw1 || !pw2)
792 return -1;
793
794 return isl_dim_equal(pw1->dim, pw2->dim);
795 }
796
797 #ifndef NO_MORPH
798 __isl_give PW *FN(PW,morph)(__isl_take PW *pw, __isl_take isl_morph *morph)
799 {
800 int i;
801 isl_ctx *ctx;
802
803 if (!pw || !morph)
804 goto error;
805
806 ctx = isl_dim_get_ctx(pw->dim);
807 isl_assert(ctx, isl_dim_equal(pw->dim, morph->dom->dim),
808 goto error);
809
810 pw = FN(PW,cow)(pw);
811 if (!pw)
812 goto error;
813 isl_dim_free(pw->dim);
814 pw->dim = isl_dim_copy(morph->ran->dim);
815 if (!pw->dim)
816 goto error;
817
818 for (i = 0; i < pw->n; ++i) {
819 pw->p[i].set = isl_morph_set(isl_morph_copy(morph), pw->p[i].set);
820 if (!pw->p[i].set)
821 goto error;
822 pw->p[i].FIELD = FN(EL,morph)(pw->p[i].FIELD,
823 isl_morph_copy(morph));
824 if (!pw->p[i].FIELD)
825 goto error;
826 }
827
828 isl_morph_free(morph);
829
830 return pw;
831 error:
832 FN(PW,free)(pw);
833 isl_morph_free(morph);
834 return NULL;
835 }
836 #endif
837
838 int FN(PW,foreach_piece)(__isl_keep PW *pw,
839 int (*fn)(__isl_take isl_set *set, __isl_take EL *el, void *user),
840 void *user)
841 {
842 int i;
843
844 if (!pw)
845 return -1;
846
847 for (i = 0; i < pw->n; ++i)
848 if (fn(isl_set_copy(pw->p[i].set),
849 FN(EL,copy)(pw->p[i].FIELD), user) < 0)
850 return -1;
851
852 return 0;
853 }
854
855 #ifndef NO_LIFT
856 static int any_divs(__isl_keep isl_set *set)
857 {
858 int i;
859
860 if (!set)
861 return -1;
862
863 for (i = 0; i < set->n; ++i)
864 if (set->p[i]->n_div > 0)
865 return 1;
866
867 return 0;
868 }
869
870 static int foreach_lifted_subset(__isl_take isl_set *set, __isl_take EL *el,
871 int (*fn)(__isl_take isl_set *set, __isl_take EL *el,
872 void *user), void *user)
873 {
874 int i;
875
876 if (!set || !el)
877 goto error;
878
879 for (i = 0; i < set->n; ++i) {
880 isl_set *lift;
881 EL *copy;
882
883 lift = isl_set_from_basic_set(isl_basic_set_copy(set->p[i]));
884 lift = isl_set_lift(lift);
885
886 copy = FN(EL,copy)(el);
887 copy = FN(EL,lift)(copy, isl_set_get_dim(lift));
888
889 if (fn(lift, copy, user) < 0)
890 goto error;
891 }
892
893 isl_set_free(set);
894 FN(EL,free)(el);
895
896 return 0;
897 error:
898 isl_set_free(set);
899 FN(EL,free)(el);
900 return -1;
901 }
902
903 int FN(PW,foreach_lifted_piece)(__isl_keep PW *pw,
904 int (*fn)(__isl_take isl_set *set, __isl_take EL *el,
905 void *user), void *user)
906 {
907 int i;
908
909 if (!pw)
910 return -1;
911
912 for (i = 0; i < pw->n; ++i) {
913 isl_set *set;
914 EL *el;
915
916 set = isl_set_copy(pw->p[i].set);
917 el = FN(EL,copy)(pw->p[i].FIELD);
918 if (!any_divs(set)) {
919 if (fn(set, el, user) < 0)
920 return -1;
921 continue;
922 }
923 if (foreach_lifted_subset(set, el, fn, user) < 0)
924 return -1;
925 }
926
927 return 0;
928 }
929 #endif
930
931 #ifndef NO_MOVE_DIMS
932 __isl_give PW *FN(PW,move_dims)(__isl_take PW *pw,
933 enum isl_dim_type dst_type, unsigned dst_pos,
934 enum isl_dim_type src_type, unsigned src_pos, unsigned n)
935 {
936 int i;
937
938 pw = FN(PW,cow)(pw);
939 if (!pw)
940 return NULL;
941
942 pw->dim = isl_dim_move(pw->dim, dst_type, dst_pos, src_type, src_pos, n);
943 if (!pw->dim)
944 goto error;
945
946 for (i = 0; i < pw->n; ++i) {
947 pw->p[i].set = isl_set_move_dims(pw->p[i].set,
948 dst_type, dst_pos,
949 src_type, src_pos, n);
950 if (!pw->p[i].set)
951 goto error;
952 pw->p[i].FIELD = FN(EL,move_dims)(pw->p[i].FIELD,
953 dst_type, dst_pos, src_type, src_pos, n);
954 if (!pw->p[i].FIELD)
955 goto error;
956 }
957
958 return pw;
959 error:
960 FN(PW,free)(pw);
961 return NULL;
962 }
963 #endif
964
965 #ifndef NO_REALIGN
966 __isl_give PW *FN(PW,realign)(__isl_take PW *pw, __isl_take isl_reordering *exp)
967 {
968 int i;
969
970 pw = FN(PW,cow)(pw);
971 if (!pw || !exp)
972 return NULL;
973
974 for (i = 0; i < pw->n; ++i) {
975 pw->p[i].set = isl_set_realign(pw->p[i].set,
976 isl_reordering_copy(exp));
977 if (!pw->p[i].set)
978 goto error;
979 pw->p[i].FIELD = FN(EL,realign)(pw->p[i].FIELD,
980 isl_reordering_copy(exp));
981 if (!pw->p[i].FIELD)
982 goto error;
983 }
984
985 pw = FN(PW,reset_dim)(pw, isl_dim_copy(exp->dim));
986
987 isl_reordering_free(exp);
988 return pw;
989 error:
990 isl_reordering_free(exp);
991 FN(PW,free)(pw);
992 return NULL;
993 }
994
995 /* Align the parameters of "pw" to those of "model".
996 */
997 __isl_give PW *FN(PW,align_params)(__isl_take PW *pw, __isl_take isl_dim *model)
998 {
999 isl_ctx *ctx;
1000
1001 if (!pw || !model)
1002 goto error;
1003
1004 ctx = isl_dim_get_ctx(model);
1005 if (!isl_dim_has_named_params(model))
1006 isl_die(ctx, isl_error_invalid,
1007 "model has unnamed parameters", goto error);
1008 if (!isl_dim_has_named_params(pw->dim))
1009 isl_die(ctx, isl_error_invalid,
1010 "input has unnamed parameters", goto error);
1011 if (!isl_dim_match(pw->dim, isl_dim_param, model, isl_dim_param)) {
1012 isl_reordering *exp;
1013
1014 model = isl_dim_drop(model, isl_dim_in,
1015 0, isl_dim_size(model, isl_dim_in));
1016 model = isl_dim_drop(model, isl_dim_out,
1017 0, isl_dim_size(model, isl_dim_out));
1018 exp = isl_parameter_alignment_reordering(pw->dim, model);
1019 exp = isl_reordering_extend_dim(exp, FN(PW,get_dim)(pw));
1020 pw = FN(PW,realign)(pw, exp);
1021 }
1022
1023 isl_dim_free(model);
1024 return pw;
1025 error:
1026 isl_dim_free(model);
1027 FN(PW,free)(pw);
1028 return NULL;
1029 }
1030 #endif
1031
1032 __isl_give PW *FN(PW,mul_isl_int)(__isl_take PW *pw, isl_int v)
1033 {
1034 int i;
1035
1036 if (isl_int_is_one(v))
1037 return pw;
1038 if (pw && isl_int_is_zero(v)) {
1039 PW *zero;
1040 isl_dim *dim = FN(PW,get_dim)(pw);
1041 #ifdef HAS_TYPE
1042 zero = FN(PW,ZERO)(dim, pw->type);
1043 #else
1044 zero = FN(PW,ZERO)(dim);
1045 #endif
1046 FN(PW,free)(pw);
1047 return zero;
1048 }
1049 pw = FN(PW,cow)(pw);
1050 if (!pw)
1051 return NULL;
1052 if (pw->n == 0)
1053 return pw;
1054
1055 #ifdef HAS_TYPE
1056 if (isl_int_is_neg(v))
1057 pw->type = isl_fold_type_negate(pw->type);
1058 #endif
1059 for (i = 0; i < pw->n; ++i) {
1060 pw->p[i].FIELD = FN(EL,scale)(pw->p[i].FIELD, v);
1061 if (!pw->p[i].FIELD)
1062 goto error;
1063 }
1064
1065 return pw;
1066 error:
1067 FN(PW,free)(pw);
1068 return NULL;
1069 }
1070
1071 __isl_give PW *FN(PW,scale)(__isl_take PW *pw, isl_int v)
1072 {
1073 return FN(PW,mul_isl_int)(pw, v);
1074 }
Integer set library