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)
7 static __isl_give PW *FN(PW,alloc_)(__isl_take isl_dim *dim,
8 enum isl_fold type, int n)
10 static __isl_give PW *FN(PW,alloc_)(__isl_take isl_dim *dim, int n)
17 isl_assert(dim->ctx, n >= 0, goto error);
18 pw = isl_alloc(dim->ctx, struct PW,
19 sizeof(struct PW) + (n - 1) * sizeof(S(PW,piece)));
37 __isl_give PW *FN(PW,zero)(__isl_take isl_dim *dim, enum isl_fold type)
39 return FN(PW,alloc_)(dim, type, 0);
42 __isl_give PW *FN(PW,zero)(__isl_take isl_dim *dim)
44 return FN(PW,alloc_)(dim, 0);
48 __isl_give PW *FN(PW,add_piece)(__isl_take PW *pw,
49 __isl_take isl_set *set, __isl_take EL *el)
51 if (!pw || !set || !el)
54 if (isl_set_fast_is_empty(set) || FN(EL,IS_ZERO)(el)) {
61 if (pw->type != el->type)
62 isl_die(set->ctx, isl_error_invalid, "fold types don't match",
65 isl_assert(set->ctx, isl_dim_equal(pw->dim, el->dim), goto error);
66 isl_assert(set->ctx, pw->n < pw->size, goto error);
68 pw->p[pw->n].set = set;
69 pw->p[pw->n].FIELD = el;
81 __isl_give PW *FN(PW,alloc)(enum isl_fold type,
82 __isl_take isl_set *set, __isl_take EL *el)
84 __isl_give PW *FN(PW,alloc)(__isl_take isl_set *set, __isl_take EL *el)
93 pw = FN(PW,alloc_)(isl_set_get_dim(set), type, 1);
95 pw = FN(PW,alloc_)(isl_set_get_dim(set), 1);
98 return FN(PW,add_piece)(pw, set, el);
105 __isl_give PW *FN(PW,dup)(__isl_keep PW *pw)
114 dup = FN(PW,alloc_)(isl_dim_copy(pw->dim), pw->type, pw->n);
116 dup = FN(PW,alloc_)(isl_dim_copy(pw->dim), pw->n);
121 for (i = 0; i < pw->n; ++i)
122 dup = FN(PW,add_piece)(dup, isl_set_copy(pw->p[i].set),
123 FN(EL,copy)(pw->p[i].FIELD));
131 __isl_give PW *FN(PW,cow)(__isl_take PW *pw)
139 return FN(PW,dup)(pw);
142 __isl_give PW *FN(PW,copy)(__isl_keep PW *pw)
151 void FN(PW,free)(__isl_take PW *pw)
160 for (i = 0; i < pw->n; ++i) {
161 isl_set_free(pw->p[i].set);
162 FN(EL,free)(pw->p[i].FIELD);
164 isl_dim_free(pw->dim);
168 int FN(PW,is_zero)(__isl_keep PW *pw)
176 __isl_give PW *FN(PW,add)(__isl_take PW *pw1, __isl_take PW *pw2)
186 if (pw1->type != pw2->type)
187 isl_die(pw1->dim->ctx, isl_error_invalid,
188 "fold types don't match", goto error);
190 isl_assert(pw1->dim->ctx, isl_dim_equal(pw1->dim, pw2->dim), goto error);
192 if (FN(PW,is_zero)(pw1)) {
197 if (FN(PW,is_zero)(pw2)) {
202 n = (pw1->n + 1) * (pw2->n + 1);
204 res = FN(PW,alloc_)(isl_dim_copy(pw1->dim), pw1->type, n);
206 res = FN(PW,alloc_)(isl_dim_copy(pw1->dim), n);
209 for (i = 0; i < pw1->n; ++i) {
210 set = isl_set_copy(pw1->p[i].set);
211 for (j = 0; j < pw2->n; ++j) {
212 struct isl_set *common;
214 set = isl_set_subtract(set,
215 isl_set_copy(pw2->p[j].set));
216 common = isl_set_intersect(isl_set_copy(pw1->p[i].set),
217 isl_set_copy(pw2->p[j].set));
218 if (isl_set_fast_is_empty(common)) {
219 isl_set_free(common);
223 sum = FN(EL,add_on_domain)(common,
224 FN(EL,copy)(pw1->p[i].FIELD),
225 FN(EL,copy)(pw2->p[j].FIELD));
227 res = FN(PW,add_piece)(res, common, sum);
229 res = FN(PW,add_piece)(res, set, FN(EL,copy)(pw1->p[i].FIELD));
232 for (j = 0; j < pw2->n; ++j) {
233 set = isl_set_copy(pw2->p[j].set);
234 for (i = 0; i < pw1->n; ++i)
235 set = isl_set_subtract(set,
236 isl_set_copy(pw1->p[i].set));
237 res = FN(PW,add_piece)(res, set, FN(EL,copy)(pw2->p[j].FIELD));
250 __isl_give PW *FN(PW,add_disjoint)(__isl_take PW *pw1, __isl_take PW *pw2)
259 if (pw1->type != pw2->type)
260 isl_die(pw1->dim->ctx, isl_error_invalid,
261 "fold types don't match", goto error);
263 isl_assert(pw1->dim->ctx, isl_dim_equal(pw1->dim, pw2->dim), goto error);
265 if (FN(PW,is_zero)(pw1)) {
270 if (FN(PW,is_zero)(pw2)) {
276 res = FN(PW,alloc_)(isl_dim_copy(pw1->dim), pw1->type, pw1->n + pw2->n);
278 res = FN(PW,alloc_)(isl_dim_copy(pw1->dim), pw1->n + pw2->n);
281 for (i = 0; i < pw1->n; ++i)
282 res = FN(PW,add_piece)(res,
283 isl_set_copy(pw1->p[i].set),
284 FN(EL,copy)(pw1->p[i].FIELD));
286 for (i = 0; i < pw2->n; ++i)
287 res = FN(PW,add_piece)(res,
288 isl_set_copy(pw2->p[i].set),
289 FN(EL,copy)(pw2->p[i].FIELD));
301 __isl_give isl_qpolynomial *FN(PW,eval)(__isl_take PW *pw,
302 __isl_take isl_point *pnt)
310 isl_assert(pnt->dim->ctx, isl_dim_equal(pnt->dim, pw->dim), goto error);
312 for (i = 0; i < pw->n; ++i) {
313 found = isl_set_contains_point(pw->p[i].set, pnt);
320 qp = FN(EL,eval)(FN(EL,copy)(pw->p[i].FIELD),
321 isl_point_copy(pnt));
323 qp = isl_qpolynomial_zero(isl_dim_copy(pw->dim));
333 __isl_give isl_set *FN(PW,domain)(__isl_take PW *pw)
341 dom = isl_set_empty(isl_dim_copy(pw->dim));
342 for (i = 0; i < pw->n; ++i)
343 dom = isl_set_union_disjoint(dom, isl_set_copy(pw->p[i].set));
350 __isl_give PW *FN(PW,intersect_domain)(__isl_take PW *pw, __isl_take isl_set *set)
366 for (i = pw->n - 1; i >= 0; --i) {
368 pw->p[i].set = isl_set_intersect(pw->p[i].set, isl_set_copy(set));
371 aff = isl_set_affine_hull(isl_set_copy(pw->p[i].set));
372 pw->p[i].FIELD = FN(EL,substitute_equalities)(pw->p[i].FIELD,
374 if (isl_set_fast_is_empty(pw->p[i].set)) {
375 isl_set_free(pw->p[i].set);
376 FN(EL,free)(pw->p[i].FIELD);
378 pw->p[i] = pw->p[pw->n - 1];
391 __isl_give PW *FN(PW,gist)(__isl_take PW *pw, __isl_take isl_set *context)
394 isl_basic_set *hull = NULL;
400 isl_set_free(context);
404 context = isl_set_compute_divs(context);
405 hull = isl_set_simple_hull(isl_set_copy(context));
411 for (i = pw->n - 1; i >= 0; --i) {
413 pw->p[i].set = isl_set_intersect(pw->p[i].set,
414 isl_set_copy(context));
417 aff = isl_set_affine_hull(isl_set_copy(pw->p[i].set));
418 pw->p[i].FIELD = FN(EL,substitute_equalities)(pw->p[i].FIELD,
420 pw->p[i].set = isl_set_gist_basic_set(pw->p[i].set,
421 isl_basic_set_copy(hull));
424 if (isl_set_fast_is_empty(pw->p[i].set)) {
425 isl_set_free(pw->p[i].set);
426 FN(EL,free)(pw->p[i].FIELD);
428 pw->p[i] = pw->p[pw->n - 1];
433 isl_basic_set_free(hull);
434 isl_set_free(context);
439 isl_basic_set_free(hull);
440 isl_set_free(context);
444 __isl_give PW *FN(PW,coalesce)(__isl_take PW *pw)
453 for (i = pw->n - 1; i >= 0; --i) {
454 for (j = i - 1; j >= 0; --j) {
455 if (!FN(EL,is_equal)(pw->p[i].FIELD, pw->p[j].FIELD))
457 pw->p[j].set = isl_set_union(pw->p[j].set,
459 FN(EL,free)(pw->p[i].FIELD);
461 pw->p[i] = pw->p[pw->n - 1];
467 pw->p[i].set = isl_set_coalesce(pw->p[i].set);
478 isl_ctx *FN(PW,get_ctx)(__isl_keep PW *pw)
480 return pw ? pw->dim->ctx : NULL;
483 int FN(PW,involves_dims)(__isl_keep PW *pw, enum isl_dim_type type,
484 unsigned first, unsigned n)
490 if (pw->n == 0 || n == 0)
492 for (i = 0; i < pw->n; ++i) {
493 int involves = FN(EL,involves_dims)(pw->p[i].FIELD,
495 if (involves < 0 || involves)
501 __isl_give PW *FN(PW,set_dim_name)(__isl_take PW *pw,
502 enum isl_dim_type type, unsigned pos, const char *s)
510 pw->dim = isl_dim_set_name(pw->dim, type, pos, s);
514 for (i = 0; i < pw->n; ++i) {
515 pw->p[i].set = isl_set_set_dim_name(pw->p[i].set, type, pos, s);
518 pw->p[i].FIELD = FN(EL,set_dim_name)(pw->p[i].FIELD, type, pos, s);
529 __isl_give PW *FN(PW,drop_dims)(__isl_take PW *pw,
530 enum isl_dim_type type, unsigned first, unsigned n)
536 if (n == 0 && !isl_dim_get_tuple_name(pw->dim, type))
542 pw->dim = isl_dim_drop(pw->dim, type, first, n);
545 for (i = 0; i < pw->n; ++i) {
546 pw->p[i].set = isl_set_drop(pw->p[i].set, type, first, n);
549 pw->p[i].FIELD = FN(EL,drop_dims)(pw->p[i].FIELD, type, first, n);
560 __isl_give PW *FN(PW,insert_dims)(__isl_take PW *pw, enum isl_dim_type type,
561 unsigned first, unsigned n)
567 if (n == 0 && !isl_dim_is_named_or_nested(pw->dim, type))
574 pw->dim = isl_dim_insert(pw->dim, type, first, n);
578 for (i = 0; i < pw->n; ++i) {
579 pw->p[i].set = isl_set_insert(pw->p[i].set, type, first, n);
582 pw->p[i].FIELD = FN(EL,insert_dims)(pw->p[i].FIELD,
594 __isl_give PW *FN(PW,fix_dim)(__isl_take PW *pw,
595 enum isl_dim_type type, unsigned pos, isl_int v)
605 for (i = 0; i < pw->n; ++i) {
606 pw->p[i].set = isl_set_fix(pw->p[i].set, type, pos, v);
617 unsigned FN(PW,dim)(__isl_keep PW *pw, enum isl_dim_type type)
619 return pw ? isl_dim_size(pw->dim, type) : 0;
622 __isl_give PW *FN(PW,split_dims)(__isl_take PW *pw,
623 enum isl_dim_type type, unsigned first, unsigned n)
637 for (i = 0; i < pw->n; ++i) {
638 pw->p[i].set = isl_set_split_dims(pw->p[i].set, type, first, n);
649 /* Compute the maximal value attained by the piecewise quasipolynomial
650 * on its domain or zero if the domain is empty.
651 * In the worst case, the domain is scanned completely,
652 * so the domain is assumed to be bounded.
654 __isl_give isl_qpolynomial *FN(PW,opt)(__isl_take PW *pw, int max)
657 isl_qpolynomial *opt;
663 isl_dim *dim = isl_dim_copy(pw->dim);
665 return isl_qpolynomial_zero(dim);
668 opt = FN(EL,opt_on_domain)(FN(EL,copy)(pw->p[0].FIELD),
669 isl_set_copy(pw->p[0].set), max);
670 for (i = 1; i < pw->n; ++i) {
671 isl_qpolynomial *opt_i;
672 opt_i = FN(EL,opt_on_domain)(FN(EL,copy)(pw->p[i].FIELD),
673 isl_set_copy(pw->p[i].set), max);
675 opt = isl_qpolynomial_max_cst(opt, opt_i);
677 opt = isl_qpolynomial_min_cst(opt, opt_i);
684 __isl_give isl_qpolynomial *FN(PW,max)(__isl_take PW *pw)
686 return FN(PW,opt)(pw, 1);
689 __isl_give isl_qpolynomial *FN(PW,min)(__isl_take PW *pw)
691 return FN(PW,opt)(pw, 0);
694 __isl_give isl_dim *FN(PW,get_dim)(__isl_keep PW *pw)
696 return pw ? isl_dim_copy(pw->dim) : NULL;
699 __isl_give PW *FN(PW,reset_dim)(__isl_take PW *pw, __isl_take isl_dim *dim)
707 for (i = 0; i < pw->n; ++i) {
708 pw->p[i].set = isl_set_reset_dim(pw->p[i].set,
712 pw->p[i].FIELD = FN(EL,reset_dim)(pw->p[i].FIELD,
717 isl_dim_free(pw->dim);
727 int FN(PW,has_equal_dim)(__isl_keep PW *pw1, __isl_keep PW *pw2)
732 return isl_dim_equal(pw1->dim, pw2->dim);
735 __isl_give PW *FN(PW,morph)(__isl_take PW *pw, __isl_take isl_morph *morph)
742 isl_assert(pw->dim->ctx, isl_dim_equal(pw->dim, morph->dom->dim),
748 isl_dim_free(pw->dim);
749 pw->dim = isl_dim_copy(morph->ran->dim);
753 for (i = 0; i < pw->n; ++i) {
754 pw->p[i].set = isl_morph_set(isl_morph_copy(morph), pw->p[i].set);
757 pw->p[i].FIELD = FN(EL,morph)(pw->p[i].FIELD,
758 isl_morph_copy(morph));
763 isl_morph_free(morph);
768 isl_morph_free(morph);
772 int FN(PW,foreach_piece)(__isl_keep PW *pw,
773 int (*fn)(__isl_take isl_set *set, __isl_take EL *el, void *user),
781 for (i = 0; i < pw->n; ++i)
782 if (fn(isl_set_copy(pw->p[i].set),
783 FN(EL,copy)(pw->p[i].FIELD), user) < 0)
789 static int any_divs(__isl_keep isl_set *set)
796 for (i = 0; i < set->n; ++i)
797 if (set->p[i]->n_div > 0)
803 static int foreach_lifted_subset(__isl_take isl_set *set, __isl_take EL *el,
804 int (*fn)(__isl_take isl_set *set, __isl_take EL *el,
805 void *user), void *user)
812 for (i = 0; i < set->n; ++i) {
816 lift = isl_set_from_basic_set(isl_basic_set_copy(set->p[i]));
817 lift = isl_set_lift(lift);
819 copy = FN(EL,copy)(el);
820 copy = FN(EL,lift)(copy, isl_set_get_dim(lift));
822 if (fn(lift, copy, user) < 0)
836 int FN(PW,foreach_lifted_piece)(__isl_keep PW *pw,
837 int (*fn)(__isl_take isl_set *set, __isl_take EL *el,
838 void *user), void *user)
845 for (i = 0; i < pw->n; ++i) {
849 set = isl_set_copy(pw->p[i].set);
850 el = FN(EL,copy)(pw->p[i].FIELD);
851 if (!any_divs(set)) {
852 if (fn(set, el, user) < 0)
856 if (foreach_lifted_subset(set, el, fn, user) < 0)
863 __isl_give PW *FN(PW,move_dims)(__isl_take PW *pw,
864 enum isl_dim_type dst_type, unsigned dst_pos,
865 enum isl_dim_type src_type, unsigned src_pos, unsigned n)
873 pw->dim = isl_dim_move(pw->dim, dst_type, dst_pos, src_type, src_pos, n);
877 for (i = 0; i < pw->n; ++i) {
878 pw->p[i].set = isl_set_move_dims(pw->p[i].set,
880 src_type, src_pos, n);
883 pw->p[i].FIELD = FN(EL,move_dims)(pw->p[i].FIELD,
884 dst_type, dst_pos, src_type, src_pos, n);
895 __isl_give PW *FN(PW,realign)(__isl_take PW *pw, __isl_take isl_reordering *exp)
903 for (i = 0; i < pw->n; ++i) {
904 pw->p[i].set = isl_set_realign(pw->p[i].set,
905 isl_reordering_copy(exp));
908 pw->p[i].FIELD = FN(EL,realign)(pw->p[i].FIELD,
909 isl_reordering_copy(exp));
914 pw = FN(PW,reset_dim)(pw, isl_dim_copy(exp->dim));
916 isl_reordering_free(exp);
919 isl_reordering_free(exp);