/*
* Copyright 2010 INRIA Saclay
*
- * Use of this software is governed by the GNU LGPLv2.1 license
+ * Use of this software is governed by the MIT license
*
* Written by Sven Verdoolaege, INRIA Saclay - Ile-de-France,
* Parc Club Orsay Universite, ZAC des vignes, 4 rue Jacques Monod,
#ifdef HAS_TYPE
enum isl_fold type;
#endif
- isl_dim *dim;
+ isl_space *dim;
struct isl_hash_table table;
};
return u ? u->dim->ctx : NULL;
}
-__isl_give isl_dim *FN(UNION,get_dim)(__isl_keep UNION *u)
+__isl_give isl_space *FN(UNION,get_space)(__isl_keep UNION *u)
{
if (!u)
return NULL;
- return isl_dim_copy(u->dim);
+ return isl_space_copy(u->dim);
}
#ifdef HAS_TYPE
-static __isl_give UNION *FN(UNION,alloc)(__isl_take isl_dim *dim,
+static __isl_give UNION *FN(UNION,alloc)(__isl_take isl_space *dim,
enum isl_fold type, int size)
#else
-static __isl_give UNION *FN(UNION,alloc)(__isl_take isl_dim *dim, int size)
+static __isl_give UNION *FN(UNION,alloc)(__isl_take isl_space *dim, int size)
#endif
{
UNION *u;
+ dim = isl_space_params(dim);
if (!dim)
return NULL;
return u;
error:
- isl_dim_free(dim);
+ isl_space_free(dim);
FN(UNION,free)(u);
return NULL;
}
#ifdef HAS_TYPE
-__isl_give UNION *FN(UNION,zero)(__isl_take isl_dim *dim, enum isl_fold type)
+__isl_give UNION *FN(UNION,ZERO)(__isl_take isl_space *dim, enum isl_fold type)
{
return FN(UNION,alloc)(dim, type, 16);
}
#else
-__isl_give UNION *FN(UNION,zero)(__isl_take isl_dim *dim)
+__isl_give UNION *FN(UNION,ZERO)(__isl_take isl_space *dim)
{
return FN(UNION,alloc)(dim, 16);
}
static int has_dim(const void *entry, const void *val)
{
PART *part = (PART *)entry;
- isl_dim *dim = (isl_dim *)val;
+ isl_space *dim = (isl_space *)val;
- return isl_dim_equal(part->dim, dim);
+ return isl_space_is_equal(part->dim, dim);
}
__isl_give PART *FN(FN(UNION,extract),PARTS)(__isl_keep UNION *u,
- __isl_take isl_dim *dim)
+ __isl_take isl_space *dim)
{
uint32_t hash;
struct isl_hash_table_entry *entry;
if (!u || !dim)
goto error;
- hash = isl_dim_get_hash(dim);
+ hash = isl_space_get_hash(dim);
entry = isl_hash_table_find(u->dim->ctx, &u->table, hash,
&has_dim, dim, 0);
if (!entry)
#ifdef HAS_TYPE
- return FN(PART,zero)(dim, u->type);
+ return FN(PART,ZERO)(dim, u->type);
#else
- return FN(PART,zero)(dim);
+ return FN(PART,ZERO)(dim);
#endif
- isl_dim_free(dim);
+ isl_space_free(dim);
return FN(PART,copy)(entry->data);
error:
- isl_dim_free(dim);
+ isl_space_free(dim);
return NULL;
}
if (!part)
goto error;
- if (FN(PART,is_zero)(part)) {
+ if (DEFAULT_IS_ZERO && FN(PART,IS_ZERO)(part)) {
FN(PART,free)(part);
return u;
}
if (!u)
goto error;
- isl_assert(u->dim->ctx, isl_dim_match(part->dim, isl_dim_param, u->dim,
+ isl_assert(u->dim->ctx, isl_space_match(part->dim, isl_dim_param, u->dim,
isl_dim_param), goto error);
- hash = isl_dim_get_hash(part->dim);
+ hash = isl_space_get_hash(part->dim);
entry = isl_hash_table_find(u->dim->ctx, &u->table, hash,
&has_dim, part->dim, 1);
if (!entry)
if (!entry->data)
goto error;
FN(PART,free)(part);
- if (FN(PART,is_zero)(entry->data)) {
+ if (DEFAULT_IS_ZERO && FN(PART,IS_ZERO)(entry->data)) {
FN(PART,free)(entry->data);
isl_hash_table_remove(u->dim->ctx, &u->table, entry);
}
return NULL;
#ifdef HAS_TYPE
- dup = FN(UNION,zero)(isl_dim_copy(u->dim), u->type);
+ dup = FN(UNION,ZERO)(isl_space_copy(u->dim), u->type);
#else
- dup = FN(UNION,zero)(isl_dim_copy(u->dim));
+ dup = FN(UNION,ZERO)(isl_space_copy(u->dim));
#endif
if (FN(FN(UNION,foreach),PARTS)(u, &add_part, &dup) < 0)
goto error;
return 0;
}
-void FN(UNION,free)(__isl_take UNION *u)
+void *FN(UNION,free)(__isl_take UNION *u)
{
if (!u)
- return;
+ return NULL;
if (--u->ref > 0)
- return;
+ return NULL;
isl_hash_table_foreach(u->dim->ctx, &u->table, &free_u_entry, NULL);
isl_hash_table_clear(&u->table);
- isl_dim_free(u->dim);
+ isl_space_free(u->dim);
free(u);
+ return NULL;
}
S(UNION,align) {
UNION *res;
};
+#ifdef ALIGN_DOMAIN
+static int align_entry(__isl_take PART *part, void *user)
+{
+ isl_reordering *exp;
+ S(UNION,align) *data = user;
+
+ exp = isl_reordering_extend_space(isl_reordering_copy(data->exp),
+ FN(PART,get_domain_space)(part));
+
+ data->res = FN(FN(UNION,add),PARTS)(data->res,
+ FN(PART,realign_domain)(part, exp));
+
+ return 0;
+}
+#else
static int align_entry(__isl_take PART *part, void *user)
{
isl_reordering *exp;
S(UNION,align) *data = user;
- exp = isl_reordering_extend_dim(isl_reordering_copy(data->exp),
- FN(PART,get_dim)(part));
+ exp = isl_reordering_extend_space(isl_reordering_copy(data->exp),
+ FN(PART,get_space)(part));
data->res = FN(FN(UNION,add),PARTS)(data->res,
FN(PART,realign)(part, exp));
return 0;
}
+#endif
__isl_give UNION *FN(UNION,align_params)(__isl_take UNION *u,
- __isl_take isl_dim *model)
+ __isl_take isl_space *model)
{
- int i, j;
S(UNION,align) data = { NULL, NULL };
if (!u || !model)
goto error;
- if (isl_dim_match(u->dim, isl_dim_param, model, isl_dim_param)) {
- isl_dim_free(model);
+ if (isl_space_match(u->dim, isl_dim_param, model, isl_dim_param)) {
+ isl_space_free(model);
return u;
}
goto error;
#ifdef HAS_TYPE
- data.res = FN(UNION,alloc)(isl_dim_copy(data.exp->dim),
+ data.res = FN(UNION,alloc)(isl_space_copy(data.exp->dim),
u->type, u->table.n);
#else
- data.res = FN(UNION,alloc)(isl_dim_copy(data.exp->dim), u->table.n);
+ data.res = FN(UNION,alloc)(isl_space_copy(data.exp->dim), u->table.n);
#endif
if (FN(FN(UNION,foreach),PARTS)(u, &align_entry, &data) < 0)
goto error;
isl_reordering_free(data.exp);
FN(UNION,free)(u);
- isl_dim_free(model);
+ isl_space_free(model);
return data.res;
error:
isl_reordering_free(data.exp);
FN(UNION,free)(u);
FN(UNION,free)(data.res);
- isl_dim_free(model);
+ isl_space_free(model);
return NULL;
}
__isl_give UNION *FN(UNION,add)(__isl_take UNION *u1, __isl_take UNION *u2)
{
- u1 = FN(UNION,align_params)(u1, FN(UNION,get_dim)(u2));
- u2 = FN(UNION,align_params)(u2, FN(UNION,get_dim)(u1));
+ u1 = FN(UNION,align_params)(u1, FN(UNION,get_space)(u2));
+ u2 = FN(UNION,align_params)(u2, FN(UNION,get_space)(u1));
u1 = FN(UNION,cow)(u1);
__isl_give UNION *FN(FN(UNION,from),PARTS)(__isl_take PART *part)
{
- isl_dim *dim;
+ isl_space *dim;
UNION *u;
if (!part)
return NULL;
- dim = FN(PART,get_dim)(part);
- dim = isl_dim_drop(dim, isl_dim_in, 0, isl_dim_size(dim, isl_dim_in));
- dim = isl_dim_drop(dim, isl_dim_out, 0, isl_dim_size(dim, isl_dim_out));
+ dim = FN(PART,get_space)(part);
+ dim = isl_space_drop_dims(dim, isl_dim_in, 0, isl_space_dim(dim, isl_dim_in));
+ dim = isl_space_drop_dims(dim, isl_dim_out, 0, isl_space_dim(dim, isl_dim_out));
#ifdef HAS_TYPE
- u = FN(UNION,zero)(dim, part->type);
+ u = FN(UNION,ZERO)(dim, part->type);
#else
- u = FN(UNION,zero)(dim);
+ u = FN(UNION,ZERO)(dim);
#endif
u = FN(FN(UNION,add),PARTS)(u, part);
S(UNION,match_bin_data) {
UNION *u2;
UNION *res;
+ __isl_give PART *(*fn)(__isl_take PART *, __isl_take PART *);
};
+/* Check if data->u2 has an element living in the same space as *entry.
+ * If so, call data->fn on the two elements and add the result to
+ * data->res.
+ */
+static int match_bin_entry(void **entry, void *user)
+{
+ S(UNION,match_bin_data) *data = user;
+ uint32_t hash;
+ struct isl_hash_table_entry *entry2;
+ isl_space *space;
+ PART *part = *entry;
+
+ space = FN(PART,get_space)(part);
+ hash = isl_space_get_hash(space);
+ entry2 = isl_hash_table_find(data->u2->dim->ctx, &data->u2->table,
+ hash, &has_dim, space, 0);
+ isl_space_free(space);
+ if (!entry2)
+ return 0;
+
+ part = FN(PART, copy)(part);
+ part = data->fn(part, FN(PART, copy)(entry2->data));
+
+ if (DEFAULT_IS_ZERO) {
+ int empty;
+
+ empty = FN(PART,IS_ZERO)(part);
+ if (empty < 0) {
+ FN(PART,free)(part);
+ return -1;
+ }
+ if (empty) {
+ FN(PART,free)(part);
+ return 0;
+ }
+ }
+
+ data->res = FN(FN(UNION,add),PARTS)(data->res, part);
+
+ return 0;
+}
+
+/* This function is currently only used from isl_polynomial.c
+ * and not from isl_fold.c.
+ */
static __isl_give UNION *match_bin_op(__isl_take UNION *u1,
- __isl_take UNION *u2, int (*fn)(void **, void *))
+ __isl_take UNION *u2,
+ __isl_give PART *(*fn)(__isl_take PART *, __isl_take PART *))
+ __attribute__ ((unused));
+/* For each pair of elements in "u1" and "u2" living in the same space,
+ * call "fn" and collect the results.
+ */
+static __isl_give UNION *match_bin_op(__isl_take UNION *u1,
+ __isl_take UNION *u2,
+ __isl_give PART *(*fn)(__isl_take PART *, __isl_take PART *))
{
- S(UNION,match_bin_data) data = { NULL, NULL };
+ S(UNION,match_bin_data) data = { NULL, NULL, fn };
- u1 = FN(UNION,align_params)(u1, FN(UNION,get_dim)(u2));
- u2 = FN(UNION,align_params)(u2, FN(UNION,get_dim)(u1));
+ u1 = FN(UNION,align_params)(u1, FN(UNION,get_space)(u2));
+ u2 = FN(UNION,align_params)(u2, FN(UNION,get_space)(u1));
if (!u1 || !u2)
goto error;
data.u2 = u2;
#ifdef HAS_TYPE
- data.res = FN(UNION,alloc)(isl_dim_copy(u1->dim), u1->type, u1->table.n);
+ data.res = FN(UNION,alloc)(isl_space_copy(u1->dim), u1->type, u1->table.n);
#else
- data.res = FN(UNION,alloc)(isl_dim_copy(u1->dim), u1->table.n);
+ data.res = FN(UNION,alloc)(isl_space_copy(u1->dim), u1->table.n);
#endif
- if (isl_hash_table_foreach(u1->dim->ctx, &u1->table, fn, &data) < 0)
+ if (isl_hash_table_foreach(u1->dim->ctx, &u1->table,
+ &match_bin_entry, &data) < 0)
goto error;
FN(UNION,free)(u1);
return NULL;
}
-S(UNION,match_set_data) {
+#ifndef NO_SUB
+/* Subtract "u2" from "u1" and return the result.
+ */
+__isl_give UNION *FN(UNION,sub)(__isl_take UNION *u1, __isl_take UNION *u2)
+{
+ return match_bin_op(u1, u2, &FN(PART,sub));
+}
+#endif
+
+S(UNION,any_set_data) {
+ isl_set *set;
+ UNION *res;
+ __isl_give PW *(*fn)(__isl_take PW*, __isl_take isl_set*);
+};
+
+static int any_set_entry(void **entry, void *user)
+{
+ S(UNION,any_set_data) *data = user;
+ PW *pw = *entry;
+
+ pw = FN(PW,copy)(pw);
+ pw = data->fn(pw, isl_set_copy(data->set));
+
+ if (DEFAULT_IS_ZERO) {
+ int empty;
+
+ empty = FN(PW,IS_ZERO)(pw);
+ if (empty < 0) {
+ FN(PW,free)(pw);
+ return -1;
+ }
+ if (empty) {
+ FN(PW,free)(pw);
+ return 0;
+ }
+ }
+
+ data->res = FN(FN(UNION,add),PARTS)(data->res, pw);
+
+ return 0;
+}
+
+/* Update each element of "u" by calling "fn" on the element and "set".
+ */
+static __isl_give UNION *any_set_op(__isl_take UNION *u,
+ __isl_take isl_set *set,
+ __isl_give PW *(*fn)(__isl_take PW*, __isl_take isl_set*))
+{
+ S(UNION,any_set_data) data = { NULL, NULL, fn };
+
+ u = FN(UNION,align_params)(u, isl_set_get_space(set));
+ set = isl_set_align_params(set, FN(UNION,get_space)(u));
+
+ if (!u || !set)
+ goto error;
+
+ data.set = set;
+#ifdef HAS_TYPE
+ data.res = FN(UNION,alloc)(isl_space_copy(u->dim), u->type, u->table.n);
+#else
+ data.res = FN(UNION,alloc)(isl_space_copy(u->dim), u->table.n);
+#endif
+ if (isl_hash_table_foreach(u->dim->ctx, &u->table,
+ &any_set_entry, &data) < 0)
+ goto error;
+
+ FN(UNION,free)(u);
+ isl_set_free(set);
+ return data.res;
+error:
+ FN(UNION,free)(u);
+ isl_set_free(set);
+ FN(UNION,free)(data.res);
+ return NULL;
+}
+
+/* Intersect the domain of "u" with the parameter domain "context".
+ */
+__isl_give UNION *FN(UNION,intersect_params)(__isl_take UNION *u,
+ __isl_take isl_set *set)
+{
+ return any_set_op(u, set, &FN(PW,intersect_params));
+}
+
+/* Compute the gist of the domain of "u" with respect to
+ * the parameter domain "context".
+ */
+__isl_give UNION *FN(UNION,gist_params)(__isl_take UNION *u,
+ __isl_take isl_set *set)
+{
+ return any_set_op(u, set, &FN(PW,gist_params));
+}
+
+S(UNION,match_domain_data) {
isl_union_set *uset;
UNION *res;
__isl_give PW *(*fn)(__isl_take PW*, __isl_take isl_set*);
static int set_has_dim(const void *entry, const void *val)
{
isl_set *set = (isl_set *)entry;
- isl_dim *dim = (isl_dim *)val;
+ isl_space *dim = (isl_space *)val;
- return isl_dim_equal(set->dim, dim);
+ return isl_space_is_equal(set->dim, dim);
}
-static int match_set_entry(void **entry, void *user)
+/* Find the set in data->uset that live in the same space as the domain
+ * of *entry, apply data->fn to *entry and this set (if any), and add
+ * the result to data->res.
+ */
+static int match_domain_entry(void **entry, void *user)
{
- S(UNION,match_set_data) *data = user;
+ S(UNION,match_domain_data) *data = user;
uint32_t hash;
struct isl_hash_table_entry *entry2;
- isl_dim *dim;
PW *pw = *entry;
- int empty;
+ isl_space *space;
- hash = isl_dim_get_hash(pw->dim);
+ space = FN(PW,get_domain_space)(pw);
+ hash = isl_space_get_hash(space);
entry2 = isl_hash_table_find(data->uset->dim->ctx, &data->uset->table,
- hash, &set_has_dim, pw->dim, 0);
+ hash, &set_has_dim, space, 0);
+ isl_space_free(space);
if (!entry2)
return 0;
pw = FN(PW,copy)(pw);
pw = data->fn(pw, isl_set_copy(entry2->data));
- empty = FN(PW,is_zero)(pw);
- if (empty < 0) {
- FN(PW,free)(pw);
- return -1;
- }
- if (empty) {
- FN(PW,free)(pw);
- return 0;
+ if (DEFAULT_IS_ZERO) {
+ int empty;
+
+ empty = FN(PW,IS_ZERO)(pw);
+ if (empty < 0) {
+ FN(PW,free)(pw);
+ return -1;
+ }
+ if (empty) {
+ FN(PW,free)(pw);
+ return 0;
+ }
}
data->res = FN(FN(UNION,add),PARTS)(data->res, pw);
return 0;
}
-static __isl_give UNION *match_set_op(__isl_take UNION *u,
+/* Apply fn to each pair of PW in u and set in uset such that
+ * the set lives in the same space as the domain of PW
+ * and collect the results.
+ */
+static __isl_give UNION *match_domain_op(__isl_take UNION *u,
__isl_take isl_union_set *uset,
__isl_give PW *(*fn)(__isl_take PW*, __isl_take isl_set*))
{
- S(UNION,match_set_data) data = { NULL, NULL, fn };
+ S(UNION,match_domain_data) data = { NULL, NULL, fn };
- u = FN(UNION,align_params)(u, isl_union_set_get_dim(uset));
- uset = isl_union_set_align_params(uset, FN(UNION,get_dim)(u));
+ u = FN(UNION,align_params)(u, isl_union_set_get_space(uset));
+ uset = isl_union_set_align_params(uset, FN(UNION,get_space)(u));
if (!u || !uset)
goto error;
data.uset = uset;
#ifdef HAS_TYPE
- data.res = FN(UNION,alloc)(isl_dim_copy(u->dim), u->type, u->table.n);
+ data.res = FN(UNION,alloc)(isl_space_copy(u->dim), u->type, u->table.n);
#else
- data.res = FN(UNION,alloc)(isl_dim_copy(u->dim), u->table.n);
+ data.res = FN(UNION,alloc)(isl_space_copy(u->dim), u->table.n);
#endif
if (isl_hash_table_foreach(u->dim->ctx, &u->table,
- &match_set_entry, &data) < 0)
+ &match_domain_entry, &data) < 0)
goto error;
FN(UNION,free)(u);
return NULL;
}
+/* Intersect the domain of "u" with "uset".
+ * If "uset" is a parameters domain, then intersect the parameter
+ * domain of "u" with this set.
+ */
__isl_give UNION *FN(UNION,intersect_domain)(__isl_take UNION *u,
__isl_take isl_union_set *uset)
{
- return match_set_op(u, uset, &FN(PW,intersect_domain));
+ if (isl_union_set_is_params(uset))
+ return FN(UNION,intersect_params)(u,
+ isl_set_from_union_set(uset));
+ return match_domain_op(u, uset, &FN(PW,intersect_domain));
}
__isl_give UNION *FN(UNION,gist)(__isl_take UNION *u,
__isl_take isl_union_set *uset)
{
- return match_set_op(u, uset, &FN(PW,gist));
+ if (isl_union_set_is_params(uset))
+ return FN(UNION,gist_params)(u, isl_set_from_union_set(uset));
+ return match_domain_op(u, uset, &FN(PW,gist));
}
+#ifndef NO_EVAL
__isl_give isl_qpolynomial *FN(UNION,eval)(__isl_take UNION *u,
__isl_take isl_point *pnt)
{
uint32_t hash;
struct isl_hash_table_entry *entry;
+ isl_space *space;
isl_qpolynomial *qp;
if (!u || !pnt)
goto error;
- hash = isl_dim_get_hash(pnt->dim);
+ space = isl_space_copy(pnt->dim);
+ space = isl_space_from_domain(space);
+ space = isl_space_add_dims(space, isl_dim_out, 1);
+ if (!space)
+ goto error;
+ hash = isl_space_get_hash(space);
entry = isl_hash_table_find(u->dim->ctx, &u->table,
- hash, &has_dim, pnt->dim, 0);
+ hash, &has_dim, space, 0);
+ isl_space_free(space);
if (!entry) {
- qp = isl_qpolynomial_zero(isl_dim_copy(pnt->dim));
+ qp = isl_qpolynomial_zero_on_domain(isl_space_copy(pnt->dim));
isl_point_free(pnt);
} else {
qp = FN(PART,eval)(FN(PART,copy)(entry->data), pnt);
isl_point_free(pnt);
return NULL;
}
+#endif
static int coalesce_entry(void **entry, void *user)
{
{
isl_union_set *uset;
- uset = isl_union_set_empty(FN(UNION,get_dim)(u));
+ uset = isl_union_set_empty(FN(UNION,get_space)(u));
if (FN(FN(UNION,foreach),PARTS)(u, &domain, &uset) < 0)
goto error;
FN(UNION,free)(u);
return NULL;
}
+
+static int mul_isl_int(void **entry, void *user)
+{
+ PW **pw = (PW **)entry;
+ isl_int *v = user;
+
+ *pw = FN(PW,mul_isl_int)(*pw, *v);
+ if (!*pw)
+ return -1;
+
+ return 0;
+}
+
+__isl_give UNION *FN(UNION,mul_isl_int)(__isl_take UNION *u, isl_int v)
+{
+ if (isl_int_is_one(v))
+ return u;
+
+ if (DEFAULT_IS_ZERO && u && isl_int_is_zero(v)) {
+ UNION *zero;
+ isl_space *dim = FN(UNION,get_space)(u);
+#ifdef HAS_TYPE
+ zero = FN(UNION,ZERO)(dim, u->type);
+#else
+ zero = FN(UNION,ZERO)(dim);
+#endif
+ FN(UNION,free)(u);
+ return zero;
+ }
+
+ u = FN(UNION,cow)(u);
+ if (!u)
+ return NULL;
+
+#ifdef HAS_TYPE
+ if (isl_int_is_neg(v))
+ u->type = isl_fold_type_negate(u->type);
+#endif
+ if (isl_hash_table_foreach(u->dim->ctx, &u->table, &mul_isl_int, v) < 0)
+ goto error;
+
+ return u;
+error:
+ FN(UNION,free)(u);
+ return NULL;
+}
+
+S(UNION,plain_is_equal_data)
+{
+ UNION *u2;
+ int is_equal;
+};
+
+static int plain_is_equal_entry(void **entry, void *user)
+{
+ S(UNION,plain_is_equal_data) *data = user;
+ uint32_t hash;
+ struct isl_hash_table_entry *entry2;
+ PW *pw = *entry;
+
+ hash = isl_space_get_hash(pw->dim);
+ entry2 = isl_hash_table_find(data->u2->dim->ctx, &data->u2->table,
+ hash, &has_dim, pw->dim, 0);
+ if (!entry2) {
+ data->is_equal = 0;
+ return -1;
+ }
+
+ data->is_equal = FN(PW,plain_is_equal)(pw, entry2->data);
+ if (data->is_equal < 0 || !data->is_equal)
+ return -1;
+
+ return 0;
+}
+
+int FN(UNION,plain_is_equal)(__isl_keep UNION *u1, __isl_keep UNION *u2)
+{
+ S(UNION,plain_is_equal_data) data = { NULL, 1 };
+
+ if (!u1 || !u2)
+ return -1;
+ if (u1 == u2)
+ return 1;
+ if (u1->table.n != u2->table.n)
+ return 0;
+
+ u1 = FN(UNION,copy)(u1);
+ u2 = FN(UNION,copy)(u2);
+ u1 = FN(UNION,align_params)(u1, FN(UNION,get_space)(u2));
+ u2 = FN(UNION,align_params)(u2, FN(UNION,get_space)(u1));
+ if (!u1 || !u2)
+ goto error;
+
+ data.u2 = u2;
+ if (isl_hash_table_foreach(u1->dim->ctx, &u1->table,
+ &plain_is_equal_entry, &data) < 0 &&
+ data.is_equal)
+ goto error;
+
+ FN(UNION,free)(u1);
+ FN(UNION,free)(u2);
+
+ return data.is_equal;
+error:
+ FN(UNION,free)(u1);
+ FN(UNION,free)(u2);
+ return -1;
+}