2 * Copyright 2010 INRIA Saclay
4 * Use of this software is governed by the MIT license
6 * Written by Sven Verdoolaege, INRIA Saclay - Ile-de-France,
7 * Parc Club Orsay Universite, ZAC des vignes, 4 rue Jacques Monod,
11 #define xFN(TYPE,NAME) TYPE ## _ ## NAME
12 #define FN(TYPE,NAME) xFN(TYPE,NAME)
13 #define xS(TYPE,NAME) struct TYPE ## _ ## NAME
14 #define S(TYPE,NAME) xS(TYPE,NAME)
23 struct isl_hash_table table;
26 __isl_give UNION *FN(UNION,cow)(__isl_take UNION *u);
28 isl_ctx *FN(UNION,get_ctx)(__isl_keep UNION *u)
30 return u ? u->dim->ctx : NULL;
33 __isl_give isl_space *FN(UNION,get_space)(__isl_keep UNION *u)
37 return isl_space_copy(u->dim);
41 static __isl_give UNION *FN(UNION,alloc)(__isl_take isl_space *dim,
42 enum isl_fold type, int size)
44 static __isl_give UNION *FN(UNION,alloc)(__isl_take isl_space *dim, int size)
49 dim = isl_space_params(dim);
53 u = isl_calloc_type(dim->ctx, UNION);
62 if (isl_hash_table_init(dim->ctx, &u->table, size) < 0)
73 __isl_give UNION *FN(UNION,ZERO)(__isl_take isl_space *dim, enum isl_fold type)
75 return FN(UNION,alloc)(dim, type, 16);
78 __isl_give UNION *FN(UNION,ZERO)(__isl_take isl_space *dim)
80 return FN(UNION,alloc)(dim, 16);
84 __isl_give UNION *FN(UNION,copy)(__isl_keep UNION *u)
95 int (*fn)(__isl_take PART *part, void *user);
99 static int call_on_copy(void **entry, void *user)
102 S(UNION,foreach_data) *data = (S(UNION,foreach_data) *)user;
104 return data->fn(FN(PART,copy)(part), data->user);
107 int FN(FN(UNION,foreach),PARTS)(__isl_keep UNION *u,
108 int (*fn)(__isl_take PART *part, void *user), void *user)
110 S(UNION,foreach_data) data = { fn, user };
115 return isl_hash_table_foreach(u->dim->ctx, &u->table,
116 &call_on_copy, &data);
119 static int has_dim(const void *entry, const void *val)
121 PART *part = (PART *)entry;
122 isl_space *dim = (isl_space *)val;
124 return isl_space_is_equal(part->dim, dim);
127 __isl_give PART *FN(FN(UNION,extract),PARTS)(__isl_keep UNION *u,
128 __isl_take isl_space *dim)
131 struct isl_hash_table_entry *entry;
136 hash = isl_space_get_hash(dim);
137 entry = isl_hash_table_find(u->dim->ctx, &u->table, hash,
141 return FN(PART,ZERO)(dim, u->type);
143 return FN(PART,ZERO)(dim);
146 return FN(PART,copy)(entry->data);
152 __isl_give UNION *FN(FN(UNION,add),PARTS)(__isl_take UNION *u,
153 __isl_take PART *part)
156 struct isl_hash_table_entry *entry;
161 if (DEFAULT_IS_ZERO && FN(PART,IS_ZERO)(part)) {
166 u = FN(UNION,cow)(u);
171 isl_assert(u->dim->ctx, isl_space_match(part->dim, isl_dim_param, u->dim,
172 isl_dim_param), goto error);
174 hash = isl_space_get_hash(part->dim);
175 entry = isl_hash_table_find(u->dim->ctx, &u->table, hash,
176 &has_dim, part->dim, 1);
183 entry->data = FN(PART,add)(entry->data, FN(PART,copy)(part));
187 if (DEFAULT_IS_ZERO && FN(PART,IS_ZERO)(entry->data)) {
188 FN(PART,free)(entry->data);
189 isl_hash_table_remove(u->dim->ctx, &u->table, entry);
200 static int add_part(__isl_take PART *part, void *user)
202 UNION **u = (UNION **)user;
204 *u = FN(FN(UNION,add),PARTS)(*u, part);
209 __isl_give UNION *FN(UNION,dup)(__isl_keep UNION *u)
217 dup = FN(UNION,ZERO)(isl_space_copy(u->dim), u->type);
219 dup = FN(UNION,ZERO)(isl_space_copy(u->dim));
221 if (FN(FN(UNION,foreach),PARTS)(u, &add_part, &dup) < 0)
229 __isl_give UNION *FN(UNION,cow)(__isl_take UNION *u)
237 return FN(UNION,dup)(u);
240 static int free_u_entry(void **entry, void *user)
247 void *FN(UNION,free)(__isl_take UNION *u)
255 isl_hash_table_foreach(u->dim->ctx, &u->table, &free_u_entry, NULL);
256 isl_hash_table_clear(&u->table);
257 isl_space_free(u->dim);
268 static int align_entry(__isl_take PART *part, void *user)
271 S(UNION,align) *data = user;
273 exp = isl_reordering_extend_space(isl_reordering_copy(data->exp),
274 FN(PART,get_domain_space)(part));
276 data->res = FN(FN(UNION,add),PARTS)(data->res,
277 FN(PART,realign_domain)(part, exp));
282 static int align_entry(__isl_take PART *part, void *user)
285 S(UNION,align) *data = user;
287 exp = isl_reordering_extend_space(isl_reordering_copy(data->exp),
288 FN(PART,get_space)(part));
290 data->res = FN(FN(UNION,add),PARTS)(data->res,
291 FN(PART,realign)(part, exp));
297 __isl_give UNION *FN(UNION,align_params)(__isl_take UNION *u,
298 __isl_take isl_space *model)
300 S(UNION,align) data = { NULL, NULL };
305 if (isl_space_match(u->dim, isl_dim_param, model, isl_dim_param)) {
306 isl_space_free(model);
310 data.exp = isl_parameter_alignment_reordering(u->dim, model);
315 data.res = FN(UNION,alloc)(isl_space_copy(data.exp->dim),
316 u->type, u->table.n);
318 data.res = FN(UNION,alloc)(isl_space_copy(data.exp->dim), u->table.n);
320 if (FN(FN(UNION,foreach),PARTS)(u, &align_entry, &data) < 0)
323 isl_reordering_free(data.exp);
325 isl_space_free(model);
328 isl_reordering_free(data.exp);
330 FN(UNION,free)(data.res);
331 isl_space_free(model);
335 __isl_give UNION *FN(UNION,add)(__isl_take UNION *u1, __isl_take UNION *u2)
337 u1 = FN(UNION,align_params)(u1, FN(UNION,get_space)(u2));
338 u2 = FN(UNION,align_params)(u2, FN(UNION,get_space)(u1));
340 u1 = FN(UNION,cow)(u1);
345 if (FN(FN(UNION,foreach),PARTS)(u2, &add_part, &u1) < 0)
357 __isl_give UNION *FN(FN(UNION,from),PARTS)(__isl_take PART *part)
365 dim = FN(PART,get_space)(part);
366 dim = isl_space_drop_dims(dim, isl_dim_in, 0, isl_space_dim(dim, isl_dim_in));
367 dim = isl_space_drop_dims(dim, isl_dim_out, 0, isl_space_dim(dim, isl_dim_out));
369 u = FN(UNION,ZERO)(dim, part->type);
371 u = FN(UNION,ZERO)(dim);
373 u = FN(FN(UNION,add),PARTS)(u, part);
378 S(UNION,match_bin_data) {
381 __isl_give PART *(*fn)(__isl_take PART *, __isl_take PART *);
384 /* Check if data->u2 has an element living in the same space as *entry.
385 * If so, call data->fn on the two elements and add the result to
388 static int match_bin_entry(void **entry, void *user)
390 S(UNION,match_bin_data) *data = user;
392 struct isl_hash_table_entry *entry2;
396 space = FN(PART,get_space)(part);
397 hash = isl_space_get_hash(space);
398 entry2 = isl_hash_table_find(data->u2->dim->ctx, &data->u2->table,
399 hash, &has_dim, space, 0);
400 isl_space_free(space);
404 part = FN(PART, copy)(part);
405 part = data->fn(part, FN(PART, copy)(entry2->data));
407 if (DEFAULT_IS_ZERO) {
410 empty = FN(PART,IS_ZERO)(part);
421 data->res = FN(FN(UNION,add),PARTS)(data->res, part);
426 /* This function is currently only used from isl_polynomial.c
427 * and not from isl_fold.c.
429 static __isl_give UNION *match_bin_op(__isl_take UNION *u1,
430 __isl_take UNION *u2,
431 __isl_give PART *(*fn)(__isl_take PART *, __isl_take PART *))
432 __attribute__ ((unused));
433 /* For each pair of elements in "u1" and "u2" living in the same space,
434 * call "fn" and collect the results.
436 static __isl_give UNION *match_bin_op(__isl_take UNION *u1,
437 __isl_take UNION *u2,
438 __isl_give PART *(*fn)(__isl_take PART *, __isl_take PART *))
440 S(UNION,match_bin_data) data = { NULL, NULL, fn };
442 u1 = FN(UNION,align_params)(u1, FN(UNION,get_space)(u2));
443 u2 = FN(UNION,align_params)(u2, FN(UNION,get_space)(u1));
450 data.res = FN(UNION,alloc)(isl_space_copy(u1->dim), u1->type, u1->table.n);
452 data.res = FN(UNION,alloc)(isl_space_copy(u1->dim), u1->table.n);
454 if (isl_hash_table_foreach(u1->dim->ctx, &u1->table,
455 &match_bin_entry, &data) < 0)
464 FN(UNION,free)(data.res);
469 /* Subtract "u2" from "u1" and return the result.
471 __isl_give UNION *FN(UNION,sub)(__isl_take UNION *u1, __isl_take UNION *u2)
473 return match_bin_op(u1, u2, &FN(PART,sub));
477 S(UNION,any_set_data) {
480 __isl_give PW *(*fn)(__isl_take PW*, __isl_take isl_set*);
483 static int any_set_entry(void **entry, void *user)
485 S(UNION,any_set_data) *data = user;
488 pw = FN(PW,copy)(pw);
489 pw = data->fn(pw, isl_set_copy(data->set));
491 if (DEFAULT_IS_ZERO) {
494 empty = FN(PW,IS_ZERO)(pw);
505 data->res = FN(FN(UNION,add),PARTS)(data->res, pw);
510 /* Update each element of "u" by calling "fn" on the element and "set".
512 static __isl_give UNION *any_set_op(__isl_take UNION *u,
513 __isl_take isl_set *set,
514 __isl_give PW *(*fn)(__isl_take PW*, __isl_take isl_set*))
516 S(UNION,any_set_data) data = { NULL, NULL, fn };
518 u = FN(UNION,align_params)(u, isl_set_get_space(set));
519 set = isl_set_align_params(set, FN(UNION,get_space)(u));
526 data.res = FN(UNION,alloc)(isl_space_copy(u->dim), u->type, u->table.n);
528 data.res = FN(UNION,alloc)(isl_space_copy(u->dim), u->table.n);
530 if (isl_hash_table_foreach(u->dim->ctx, &u->table,
531 &any_set_entry, &data) < 0)
540 FN(UNION,free)(data.res);
544 /* Intersect the domain of "u" with the parameter domain "context".
546 __isl_give UNION *FN(UNION,intersect_params)(__isl_take UNION *u,
547 __isl_take isl_set *set)
549 return any_set_op(u, set, &FN(PW,intersect_params));
552 /* Compute the gist of the domain of "u" with respect to
553 * the parameter domain "context".
555 __isl_give UNION *FN(UNION,gist_params)(__isl_take UNION *u,
556 __isl_take isl_set *set)
558 return any_set_op(u, set, &FN(PW,gist_params));
561 S(UNION,match_domain_data) {
564 __isl_give PW *(*fn)(__isl_take PW*, __isl_take isl_set*);
567 static int set_has_dim(const void *entry, const void *val)
569 isl_set *set = (isl_set *)entry;
570 isl_space *dim = (isl_space *)val;
572 return isl_space_is_equal(set->dim, dim);
575 /* Find the set in data->uset that live in the same space as the domain
576 * of *entry, apply data->fn to *entry and this set (if any), and add
577 * the result to data->res.
579 static int match_domain_entry(void **entry, void *user)
581 S(UNION,match_domain_data) *data = user;
583 struct isl_hash_table_entry *entry2;
587 space = FN(PW,get_domain_space)(pw);
588 hash = isl_space_get_hash(space);
589 entry2 = isl_hash_table_find(data->uset->dim->ctx, &data->uset->table,
590 hash, &set_has_dim, space, 0);
591 isl_space_free(space);
595 pw = FN(PW,copy)(pw);
596 pw = data->fn(pw, isl_set_copy(entry2->data));
598 if (DEFAULT_IS_ZERO) {
601 empty = FN(PW,IS_ZERO)(pw);
612 data->res = FN(FN(UNION,add),PARTS)(data->res, pw);
617 /* Apply fn to each pair of PW in u and set in uset such that
618 * the set lives in the same space as the domain of PW
619 * and collect the results.
621 static __isl_give UNION *match_domain_op(__isl_take UNION *u,
622 __isl_take isl_union_set *uset,
623 __isl_give PW *(*fn)(__isl_take PW*, __isl_take isl_set*))
625 S(UNION,match_domain_data) data = { NULL, NULL, fn };
627 u = FN(UNION,align_params)(u, isl_union_set_get_space(uset));
628 uset = isl_union_set_align_params(uset, FN(UNION,get_space)(u));
635 data.res = FN(UNION,alloc)(isl_space_copy(u->dim), u->type, u->table.n);
637 data.res = FN(UNION,alloc)(isl_space_copy(u->dim), u->table.n);
639 if (isl_hash_table_foreach(u->dim->ctx, &u->table,
640 &match_domain_entry, &data) < 0)
644 isl_union_set_free(uset);
648 isl_union_set_free(uset);
649 FN(UNION,free)(data.res);
653 /* Intersect the domain of "u" with "uset".
654 * If "uset" is a parameters domain, then intersect the parameter
655 * domain of "u" with this set.
657 __isl_give UNION *FN(UNION,intersect_domain)(__isl_take UNION *u,
658 __isl_take isl_union_set *uset)
660 if (isl_union_set_is_params(uset))
661 return FN(UNION,intersect_params)(u,
662 isl_set_from_union_set(uset));
663 return match_domain_op(u, uset, &FN(PW,intersect_domain));
666 __isl_give UNION *FN(UNION,gist)(__isl_take UNION *u,
667 __isl_take isl_union_set *uset)
669 if (isl_union_set_is_params(uset))
670 return FN(UNION,gist_params)(u, isl_set_from_union_set(uset));
671 return match_domain_op(u, uset, &FN(PW,gist));
675 __isl_give isl_qpolynomial *FN(UNION,eval)(__isl_take UNION *u,
676 __isl_take isl_point *pnt)
679 struct isl_hash_table_entry *entry;
686 space = isl_space_copy(pnt->dim);
687 space = isl_space_from_domain(space);
688 space = isl_space_add_dims(space, isl_dim_out, 1);
691 hash = isl_space_get_hash(space);
692 entry = isl_hash_table_find(u->dim->ctx, &u->table,
693 hash, &has_dim, space, 0);
694 isl_space_free(space);
696 qp = isl_qpolynomial_zero_on_domain(isl_space_copy(pnt->dim));
699 qp = FN(PART,eval)(FN(PART,copy)(entry->data), pnt);
710 static int coalesce_entry(void **entry, void *user)
712 PW **pw = (PW **)entry;
714 *pw = FN(PW,coalesce)(*pw);
721 __isl_give UNION *FN(UNION,coalesce)(__isl_take UNION *u)
726 if (isl_hash_table_foreach(u->dim->ctx, &u->table,
727 &coalesce_entry, NULL) < 0)
736 static int domain(__isl_take PART *part, void *user)
738 isl_union_set **uset = (isl_union_set **)user;
740 *uset = isl_union_set_add_set(*uset, FN(PART,domain)(part));
745 __isl_give isl_union_set *FN(UNION,domain)(__isl_take UNION *u)
749 uset = isl_union_set_empty(FN(UNION,get_space)(u));
750 if (FN(FN(UNION,foreach),PARTS)(u, &domain, &uset) < 0)
757 isl_union_set_free(uset);
762 static int mul_isl_int(void **entry, void *user)
764 PW **pw = (PW **)entry;
767 *pw = FN(PW,mul_isl_int)(*pw, *v);
774 __isl_give UNION *FN(UNION,mul_isl_int)(__isl_take UNION *u, isl_int v)
776 if (isl_int_is_one(v))
779 if (DEFAULT_IS_ZERO && u && isl_int_is_zero(v)) {
781 isl_space *dim = FN(UNION,get_space)(u);
783 zero = FN(UNION,ZERO)(dim, u->type);
785 zero = FN(UNION,ZERO)(dim);
791 u = FN(UNION,cow)(u);
796 if (isl_int_is_neg(v))
797 u->type = isl_fold_type_negate(u->type);
799 if (isl_hash_table_foreach(u->dim->ctx, &u->table, &mul_isl_int, v) < 0)
808 /* Multiply *entry by the isl_val "user".
810 * Return 0 on success and -1 on error.
812 static int scale_val(void **entry, void *user)
814 PW **pw = (PW **)entry;
817 *pw = FN(PW,scale_val)(*pw, isl_val_copy(v));
824 /* Multiply "u" by "v" and return the result.
826 __isl_give UNION *FN(UNION,scale_val)(__isl_take UNION *u,
827 __isl_take isl_val *v)
831 if (isl_val_is_one(v)) {
836 if (DEFAULT_IS_ZERO && u && isl_val_is_zero(v)) {
838 isl_space *space = FN(UNION,get_space)(u);
840 zero = FN(UNION,ZERO)(space, u->type);
842 zero = FN(UNION,ZERO)(space);
849 if (!isl_val_is_rat(v))
850 isl_die(isl_val_get_ctx(v), isl_error_invalid,
851 "expecting rational factor", goto error);
853 u = FN(UNION,cow)(u);
858 if (isl_val_is_neg(v))
859 u->type = isl_fold_type_negate(u->type);
861 if (isl_hash_table_foreach(u->dim->ctx, &u->table, &scale_val, v) < 0)
872 S(UNION,plain_is_equal_data)
878 static int plain_is_equal_entry(void **entry, void *user)
880 S(UNION,plain_is_equal_data) *data = user;
882 struct isl_hash_table_entry *entry2;
885 hash = isl_space_get_hash(pw->dim);
886 entry2 = isl_hash_table_find(data->u2->dim->ctx, &data->u2->table,
887 hash, &has_dim, pw->dim, 0);
893 data->is_equal = FN(PW,plain_is_equal)(pw, entry2->data);
894 if (data->is_equal < 0 || !data->is_equal)
900 int FN(UNION,plain_is_equal)(__isl_keep UNION *u1, __isl_keep UNION *u2)
902 S(UNION,plain_is_equal_data) data = { NULL, 1 };
908 if (u1->table.n != u2->table.n)
911 u1 = FN(UNION,copy)(u1);
912 u2 = FN(UNION,copy)(u2);
913 u1 = FN(UNION,align_params)(u1, FN(UNION,get_space)(u2));
914 u2 = FN(UNION,align_params)(u2, FN(UNION,get_space)(u1));
919 if (isl_hash_table_foreach(u1->dim->ctx, &u1->table,
920 &plain_is_equal_entry, &data) < 0 &&
927 return data.is_equal;