/*
* 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,
#include <isl_polynomial_private.h>
#include <isl_point_private.h>
#include <isl_space_private.h>
-#include <isl_div_private.h>
#include <isl_mat_private.h>
#include <isl_range.h>
#include <isl_local_space_private.h>
return rec;
}
-__isl_give isl_qpolynomial *isl_qpolynomial_reset_space(
+__isl_give isl_qpolynomial *isl_qpolynomial_reset_domain_space(
__isl_take isl_qpolynomial *qp, __isl_take isl_space *dim)
{
qp = isl_qpolynomial_cow(qp);
return NULL;
}
+/* Reset the space of "qp". This function is called from isl_pw_templ.c
+ * and doesn't know if the space of an element object is represented
+ * directly or through its domain. It therefore passes along both.
+ */
+__isl_give isl_qpolynomial *isl_qpolynomial_reset_space_and_domain(
+ __isl_take isl_qpolynomial *qp, __isl_take isl_space *space,
+ __isl_take isl_space *domain)
+{
+ isl_space_free(space);
+ return isl_qpolynomial_reset_domain_space(qp, domain);
+}
+
isl_ctx *isl_qpolynomial_get_ctx(__isl_keep isl_qpolynomial *qp)
{
return qp ? qp->dim->ctx : NULL;
}
-__isl_give isl_space *isl_qpolynomial_get_space(__isl_keep isl_qpolynomial *qp)
+__isl_give isl_space *isl_qpolynomial_get_domain_space(
+ __isl_keep isl_qpolynomial *qp)
{
return qp ? isl_space_copy(qp->dim) : NULL;
}
+__isl_give isl_space *isl_qpolynomial_get_space(__isl_keep isl_qpolynomial *qp)
+{
+ isl_space *space;
+ if (!qp)
+ return NULL;
+ space = isl_space_copy(qp->dim);
+ space = isl_space_from_domain(space);
+ space = isl_space_add_dims(space, isl_dim_out, 1);
+ return space;
+}
+
+/* Externally, an isl_qpolynomial has a map space, but internally, the
+ * ls field corresponds to the domain of that space.
+ */
unsigned isl_qpolynomial_dim(__isl_keep isl_qpolynomial *qp,
enum isl_dim_type type)
{
- return qp ? isl_space_dim(qp->dim, type) : 0;
+ if (!qp)
+ return 0;
+ if (type == isl_dim_out)
+ return 1;
+ if (type == isl_dim_in)
+ type = isl_dim_set;
+ return isl_space_dim(qp->dim, type);
}
int isl_qpolynomial_is_zero(__isl_keep isl_qpolynomial *qp)
if (!dim || !up)
goto error;
+ if (!isl_space_is_set(dim))
+ isl_die(isl_space_get_ctx(dim), isl_error_invalid,
+ "domain of polynomial should be a set", goto error);
+
total = isl_space_dim(dim, isl_dim_all);
qp = isl_calloc_type(dim->ctx, struct isl_qpolynomial);
if (qp && isl_int_is_zero(v)) {
isl_qpolynomial *zero;
- zero = isl_qpolynomial_zero(isl_space_copy(qp->dim));
+ zero = isl_qpolynomial_zero_on_domain(isl_space_copy(qp->dim));
isl_qpolynomial_free(qp);
return zero;
}
return pwqp;
}
-__isl_give isl_qpolynomial *isl_qpolynomial_zero(__isl_take isl_space *dim)
+__isl_give isl_qpolynomial *isl_qpolynomial_zero_on_domain(
+ __isl_take isl_space *dim)
{
if (!dim)
return NULL;
return isl_qpolynomial_alloc(dim, 0, isl_upoly_zero(dim->ctx));
}
-__isl_give isl_qpolynomial *isl_qpolynomial_one(__isl_take isl_space *dim)
+__isl_give isl_qpolynomial *isl_qpolynomial_one_on_domain(
+ __isl_take isl_space *dim)
{
if (!dim)
return NULL;
return isl_qpolynomial_alloc(dim, 0, isl_upoly_one(dim->ctx));
}
-__isl_give isl_qpolynomial *isl_qpolynomial_infty(__isl_take isl_space *dim)
+__isl_give isl_qpolynomial *isl_qpolynomial_infty_on_domain(
+ __isl_take isl_space *dim)
{
if (!dim)
return NULL;
return isl_qpolynomial_alloc(dim, 0, isl_upoly_infty(dim->ctx));
}
-__isl_give isl_qpolynomial *isl_qpolynomial_neginfty(__isl_take isl_space *dim)
+__isl_give isl_qpolynomial *isl_qpolynomial_neginfty_on_domain(
+ __isl_take isl_space *dim)
{
if (!dim)
return NULL;
return isl_qpolynomial_alloc(dim, 0, isl_upoly_neginfty(dim->ctx));
}
-__isl_give isl_qpolynomial *isl_qpolynomial_nan(__isl_take isl_space *dim)
+__isl_give isl_qpolynomial *isl_qpolynomial_nan_on_domain(
+ __isl_take isl_space *dim)
{
if (!dim)
return NULL;
return isl_qpolynomial_alloc(dim, 0, isl_upoly_nan(dim->ctx));
}
-__isl_give isl_qpolynomial *isl_qpolynomial_cst(__isl_take isl_space *dim,
+__isl_give isl_qpolynomial *isl_qpolynomial_cst_on_domain(
+ __isl_take isl_space *dim,
isl_int v)
{
struct isl_qpolynomial *qp;
upoly_update_den(qp->upoly, d);
}
-__isl_give isl_qpolynomial *isl_qpolynomial_var_pow(__isl_take isl_space *dim,
- int pos, int power)
+__isl_give isl_qpolynomial *isl_qpolynomial_var_pow_on_domain(
+ __isl_take isl_space *dim, int pos, int power)
{
struct isl_ctx *ctx;
return isl_qpolynomial_alloc(dim, 0, isl_upoly_var_pow(ctx, pos, power));
}
-__isl_give isl_qpolynomial *isl_qpolynomial_var(__isl_take isl_space *dim,
+__isl_give isl_qpolynomial *isl_qpolynomial_var_on_domain(__isl_take isl_space *dim,
enum isl_dim_type type, unsigned pos)
{
if (!dim)
if (type == isl_dim_set)
pos += isl_space_dim(dim, isl_dim_param);
- return isl_qpolynomial_var_pow(dim, pos, 1);
+ return isl_qpolynomial_var_pow_on_domain(dim, pos, 1);
error:
isl_space_free(dim);
return NULL;
return NULL;
}
-/* Assumes each div only depends on earlier divs.
- */
-__isl_give isl_qpolynomial *isl_qpolynomial_div_pow(__isl_take isl_div *div,
- int power)
-{
- struct isl_qpolynomial *qp = NULL;
- struct isl_upoly_rec *rec;
- struct isl_upoly_cst *cst;
- int i, d;
- int pos;
-
- if (!div)
- return NULL;
-
- d = div->line - div->bmap->div;
-
- pos = isl_space_dim(div->bmap->dim, isl_dim_all) + d;
- rec = isl_upoly_alloc_rec(div->ctx, pos, 1 + power);
- qp = isl_qpolynomial_alloc(isl_basic_map_get_space(div->bmap),
- div->bmap->n_div, &rec->up);
- if (!qp)
- goto error;
-
- for (i = 0; i < div->bmap->n_div; ++i)
- isl_seq_cpy(qp->div->row[i], div->bmap->div[i], qp->div->n_col);
-
- for (i = 0; i < 1 + power; ++i) {
- rec->p[i] = isl_upoly_zero(div->ctx);
- if (!rec->p[i])
- goto error;
- rec->n++;
- }
- cst = isl_upoly_as_cst(rec->p[power]);
- isl_int_set_si(cst->n, 1);
-
- isl_div_free(div);
-
- qp = reduce_divs(qp);
-
- return qp;
-error:
- isl_qpolynomial_free(qp);
- isl_div_free(div);
- return NULL;
-}
-
-__isl_give isl_qpolynomial *isl_qpolynomial_div(__isl_take isl_div *div)
-{
- return isl_qpolynomial_div_pow(div, 1);
-}
-
-__isl_give isl_qpolynomial *isl_qpolynomial_rat_cst(__isl_take isl_space *dim,
- const isl_int n, const isl_int d)
+__isl_give isl_qpolynomial *isl_qpolynomial_rat_cst_on_domain(
+ __isl_take isl_space *dim, const isl_int n, const isl_int d)
{
struct isl_qpolynomial *qp;
struct isl_upoly_cst *cst;
if (n == 0)
return 0;
- isl_assert(qp->dim->ctx, first + n <= isl_space_dim(qp->dim, type),
- return -1);
+ isl_assert(qp->dim->ctx,
+ first + n <= isl_qpolynomial_dim(qp, type), return -1);
isl_assert(qp->dim->ctx, type == isl_dim_param ||
- type == isl_dim_set, return -1);
+ type == isl_dim_in, return -1);
active = isl_calloc_array(qp->dim->ctx, int,
isl_space_dim(qp->dim, isl_dim_all));
if (set_active(qp, active) < 0)
goto error;
- if (type == isl_dim_set)
+ if (type == isl_dim_in)
first += isl_space_dim(qp->dim, isl_dim_param);
for (i = 0; i < n; ++i)
if (active[first + i]) {
{
if (!qp)
return NULL;
+ if (type == isl_dim_out)
+ isl_die(qp->dim->ctx, isl_error_invalid,
+ "cannot drop output/set dimension",
+ goto error);
+ if (type == isl_dim_in)
+ type = isl_dim_set;
if (n == 0 && !isl_space_is_named_or_nested(qp->dim, type))
return qp;
unsigned n;
int involves;
- n = isl_qpolynomial_dim(qp, isl_dim_set);
- involves = isl_qpolynomial_involves_dims(qp, isl_dim_set, 0, n);
+ n = isl_qpolynomial_dim(qp, isl_dim_in);
+ involves = isl_qpolynomial_involves_dims(qp, isl_dim_in, 0, n);
if (involves < 0)
return isl_qpolynomial_free(qp);
if (involves)
isl_die(isl_qpolynomial_get_ctx(qp), isl_error_invalid,
"polynomial involves some of the domain dimensions",
return isl_qpolynomial_free(qp));
- qp = isl_qpolynomial_drop_dims(qp, isl_dim_set, 0, n);
- space = isl_qpolynomial_get_space(qp);
+ qp = isl_qpolynomial_drop_dims(qp, isl_dim_in, 0, n);
+ space = isl_qpolynomial_get_domain_space(qp);
space = isl_space_params(space);
- qp = isl_qpolynomial_reset_space(qp, space);
+ qp = isl_qpolynomial_reset_domain_space(qp, space);
return qp;
}
if (!qp || !eq)
goto error;
if (qp->div->n_row > 0)
- eq = isl_basic_set_add(eq, isl_dim_set, qp->div->n_row);
+ eq = isl_basic_set_add_dims(eq, isl_dim_set, qp->div->n_row);
return isl_qpolynomial_substitute_equalities_lifted(qp, eq);
error:
isl_basic_set_free(eq);
return NULL;
}
+__isl_give isl_qpolynomial *isl_qpolynomial_gist_params(
+ __isl_take isl_qpolynomial *qp, __isl_take isl_set *context)
+{
+ isl_space *space = isl_qpolynomial_get_domain_space(qp);
+ isl_set *dom_context = isl_set_universe(space);
+ dom_context = isl_set_intersect_params(dom_context, context);
+ return isl_qpolynomial_gist(qp, dom_context);
+}
+
__isl_give isl_pw_qpolynomial *isl_pw_qpolynomial_from_qpolynomial(
__isl_take isl_qpolynomial *qp)
{
return isl_pw_qpolynomial_zero(dim);
}
- dom = isl_set_universe(isl_qpolynomial_get_space(qp));
+ dom = isl_set_universe(isl_qpolynomial_get_domain_space(qp));
return isl_pw_qpolynomial_alloc(dom, qp);
}
#define IS_ZERO is_zero
#undef FIELD
#define FIELD qp
+#undef DEFAULT_IS_ZERO
+#define DEFAULT_IS_ZERO 1
+
+#define NO_PULLBACK
#include <isl_pw_templ.c>
#define PART isl_pw_qpolynomial
#undef PARTS
#define PARTS pw_qpolynomial
+#define ALIGN_DOMAIN
#include <isl_union_templ.c>
return isl_qpolynomial_is_one(pwqp->p[0].qp);
}
+__isl_give isl_pw_qpolynomial *isl_pw_qpolynomial_add(
+ __isl_take isl_pw_qpolynomial *pwqp1,
+ __isl_take isl_pw_qpolynomial *pwqp2)
+{
+ return isl_pw_qpolynomial_union_add_(pwqp1, pwqp2);
+}
+
__isl_give isl_pw_qpolynomial *isl_pw_qpolynomial_mul(
__isl_take isl_pw_qpolynomial *pwqp1,
__isl_take isl_pw_qpolynomial *pwqp2)
unsigned g_pos;
int *exp;
+ if (!qp)
+ return NULL;
+ if (type == isl_dim_out)
+ isl_die(qp->div->ctx, isl_error_invalid,
+ "cannot insert output/set dimensions",
+ goto error);
+ if (type == isl_dim_in)
+ type = isl_dim_set;
if (n == 0 && !isl_space_is_named_or_nested(qp->dim, type))
return qp;
if (!qp)
return NULL;
+ if (dst_type == isl_dim_out || src_type == isl_dim_out)
+ isl_die(qp->dim->ctx, isl_error_invalid,
+ "cannot move output/set dimension",
+ goto error);
+ if (dst_type == isl_dim_in)
+ dst_type = isl_dim_set;
+ if (src_type == isl_dim_in)
+ src_type = isl_dim_set;
+
isl_assert(qp->dim->ctx, src_pos + n <= isl_space_dim(qp->dim, src_type),
goto error);
{
struct isl_upoly *up;
+ dim = isl_space_domain(dim);
if (!dim)
return NULL;
up = isl_upoly_from_affine(ctx, aff->v->el + 1, aff->v->el[0],
aff->v->size - 1);
- qp = isl_qpolynomial_alloc(isl_aff_get_space(aff),
+ qp = isl_qpolynomial_alloc(isl_aff_get_domain_space(aff),
aff->ls->div->n_row, up);
if (!qp)
goto error;
qp = isl_qpolynomial_cow(qp);
if (!qp)
return NULL;
+
+ if (type == isl_dim_out)
+ isl_die(qp->dim->ctx, isl_error_invalid,
+ "cannot substitute output/set dimension",
+ goto error);
+ if (type == isl_dim_in)
+ type = isl_dim_set;
+
for (i = 0; i < n; ++i)
if (!subs[i])
goto error;
dim = isl_space_add_dims(dim, isl_dim_set, qp->div->n_row);
poly = isl_qpolynomial_alloc(dim, 0, isl_upoly_copy(qp->upoly));
bset = isl_basic_set_copy(bset);
- bset = isl_basic_set_add(bset, isl_dim_set, qp->div->n_row);
+ bset = isl_basic_set_add_dims(bset, isl_dim_set, qp->div->n_row);
bset = add_div_constraints(bset, div);
return fn(bset, poly, user);
if (!qp)
return NULL;
+ if (type == isl_dim_out)
+ isl_die(qp->div->ctx, isl_error_invalid,
+ "output/set dimension does not have a coefficient",
+ return NULL);
+ if (type == isl_dim_in)
+ type = isl_dim_set;
+
isl_assert(qp->div->ctx, t_pos < isl_space_dim(qp->dim, type),
return NULL);
if (deg < -1)
goto error;
- poly = isl_qpolynomial_insert_dims(poly, isl_dim_set, 0, 1);
+ poly = isl_qpolynomial_insert_dims(poly, isl_dim_in, 0, 1);
poly = isl_qpolynomial_cow(poly);
if (!poly)
goto error;
isl_term *dup;
unsigned total;
- if (term)
+ if (!term)
return NULL;
total = isl_space_dim(term->dim, isl_dim_all) + term->div->n_row;
return term->pow[pos];
}
-__isl_give isl_div *isl_term_get_div(__isl_keep isl_term *term, unsigned pos)
+__isl_give isl_aff *isl_term_get_div(__isl_keep isl_term *term, unsigned pos)
{
- isl_basic_map *bmap;
- unsigned total;
- int k;
+ isl_local_space *ls;
+ isl_aff *aff;
if (!term)
return NULL;
isl_assert(term->dim->ctx, pos < isl_term_dim(term, isl_dim_div),
return NULL);
- total = term->div->n_col - term->div->n_row - 2;
- /* No nested divs for now */
- isl_assert(term->dim->ctx,
- isl_seq_first_non_zero(term->div->row[pos] + 2 + total,
- term->div->n_row) == -1,
- return NULL);
+ ls = isl_local_space_alloc_div(isl_space_copy(term->dim),
+ isl_mat_copy(term->div));
+ aff = isl_aff_alloc(ls);
+ if (!aff)
+ return NULL;
- bmap = isl_basic_map_alloc_space(isl_space_copy(term->dim), 1, 0, 0);
- if ((k = isl_basic_map_alloc_div(bmap)) < 0)
- goto error;
+ isl_seq_cpy(aff->v->el, term->div->row[pos], aff->v->size);
- isl_seq_cpy(bmap->div[k], term->div->row[pos], 2 + total);
+ aff = isl_aff_normalize(aff);
- return isl_basic_map_div(bmap, k);
-error:
- isl_basic_map_free(bmap);
- return NULL;
+ return aff;
}
__isl_give isl_term *isl_upoly_foreach_term(__isl_keep struct isl_upoly *up,
if (isl_set_foreach_point(set, opt_fn, &data) < 0)
goto error;
- if (data.first)
- data.opt = isl_qpolynomial_zero(isl_qpolynomial_get_space(qp));
+ if (data.first) {
+ isl_space *space = isl_qpolynomial_get_domain_space(qp);
+ data.opt = isl_qpolynomial_zero_on_domain(space);
+ }
isl_set_free(set);
isl_qpolynomial_free(qp);
return NULL;
}
-__isl_give isl_qpolynomial *isl_qpolynomial_morph(__isl_take isl_qpolynomial *qp,
- __isl_take isl_morph *morph)
+__isl_give isl_qpolynomial *isl_qpolynomial_morph_domain(
+ __isl_take isl_qpolynomial *qp, __isl_take isl_morph *morph)
{
int i;
int n_sub;
isl_ctx *ctx;
struct isl_upoly **subs;
- isl_mat *mat;
+ isl_mat *mat, *diag;
qp = isl_qpolynomial_cow(qp);
if (!qp || !morph)
isl_upoly_free(subs[i]);
free(subs);
- mat = isl_mat_diagonal(isl_mat_identity(ctx, 1), isl_mat_copy(morph->inv));
- mat = isl_mat_diagonal(mat, isl_mat_identity(ctx, qp->div->n_row));
+ diag = isl_mat_diag(ctx, 1, morph->inv->row[0][0]);
+ mat = isl_mat_diagonal(diag, isl_mat_copy(morph->inv));
+ diag = isl_mat_diag(ctx, qp->div->n_row, morph->inv->row[0][0]);
+ mat = isl_mat_diagonal(mat, diag);
qp->div = isl_mat_product(qp->div, mat);
isl_space_free(qp->dim);
qp->dim = isl_space_copy(morph->ran->dim);
return NULL;
}
-__isl_give isl_union_pw_qpolynomial *isl_union_pw_qpolynomial_sub(
- __isl_take isl_union_pw_qpolynomial *upwqp1,
- __isl_take isl_union_pw_qpolynomial *upwqp2)
-{
- return isl_union_pw_qpolynomial_add(upwqp1,
- isl_union_pw_qpolynomial_neg(upwqp2));
-}
-
-static int mul_entry(void **entry, void *user)
-{
- struct isl_union_pw_qpolynomial_match_bin_data *data = user;
- uint32_t hash;
- struct isl_hash_table_entry *entry2;
- isl_pw_qpolynomial *pwpq = *entry;
- int empty;
-
- hash = isl_space_get_hash(pwpq->dim);
- entry2 = isl_hash_table_find(data->u2->dim->ctx, &data->u2->table,
- hash, &has_dim, pwpq->dim, 0);
- if (!entry2)
- return 0;
-
- pwpq = isl_pw_qpolynomial_copy(pwpq);
- pwpq = isl_pw_qpolynomial_mul(pwpq,
- isl_pw_qpolynomial_copy(entry2->data));
-
- empty = isl_pw_qpolynomial_is_zero(pwpq);
- if (empty < 0) {
- isl_pw_qpolynomial_free(pwpq);
- return -1;
- }
- if (empty) {
- isl_pw_qpolynomial_free(pwpq);
- return 0;
- }
-
- data->res = isl_union_pw_qpolynomial_add_pw_qpolynomial(data->res, pwpq);
-
- return 0;
-}
-
__isl_give isl_union_pw_qpolynomial *isl_union_pw_qpolynomial_mul(
__isl_take isl_union_pw_qpolynomial *upwqp1,
__isl_take isl_union_pw_qpolynomial *upwqp2)
{
- return match_bin_op(upwqp1, upwqp2, &mul_entry);
+ return match_bin_op(upwqp1, upwqp2, &isl_pw_qpolynomial_mul);
}
/* Reorder the columns of the given div definitions according to the
/* Reorder the dimension of "qp" according to the given reordering.
*/
-__isl_give isl_qpolynomial *isl_qpolynomial_realign(
+__isl_give isl_qpolynomial *isl_qpolynomial_realign_domain(
__isl_take isl_qpolynomial *qp, __isl_take isl_reordering *r)
{
qp = isl_qpolynomial_cow(qp);
if (!qp->upoly)
goto error;
- qp = isl_qpolynomial_reset_space(qp, isl_space_copy(r->dim));
+ qp = isl_qpolynomial_reset_domain_space(qp, isl_space_copy(r->dim));
isl_reordering_free(r);
return qp;
0, isl_space_dim(model, isl_dim_out));
exp = isl_parameter_alignment_reordering(qp->dim, model);
exp = isl_reordering_extend_space(exp,
- isl_qpolynomial_get_space(qp));
- qp = isl_qpolynomial_realign(qp, exp);
+ isl_qpolynomial_get_domain_space(qp));
+ qp = isl_qpolynomial_realign_domain(qp, exp);
}
isl_space_free(model);
bset = isl_basic_set_params(bset);
dim = isl_basic_set_get_space(bset);
if (cst < 0)
- qp = isl_qpolynomial_infty(dim);
+ qp = isl_qpolynomial_infty_on_domain(dim);
else if (cst == 0)
- qp = isl_qpolynomial_zero(dim);
+ qp = isl_qpolynomial_zero_on_domain(dim);
else
- qp = isl_qpolynomial_one(dim);
+ qp = isl_qpolynomial_one_on_domain(dim);
return isl_pw_qpolynomial_alloc(isl_set_from_basic_set(bset), qp);
}
dim = isl_basic_set_get_space(bset);
dim = isl_space_domain(dim);
set = isl_set_universe(isl_space_copy(dim));
- qp = isl_qpolynomial_one(dim);
+ qp = isl_qpolynomial_one_on_domain(dim);
pwqp = isl_pw_qpolynomial_alloc(set, qp);
bset = isl_morph_basic_set(isl_morph_copy(f->morph), bset);
int bounded;
isl_morph *morph;
isl_pw_qpolynomial *pwqp;
- unsigned orig_nvar, final_nvar;
if (!bset)
return NULL;
if (isl_basic_set_plain_is_empty(bset))
return constant_on_domain(bset, 0);
- orig_nvar = isl_basic_set_dim(bset, isl_dim_set);
-
- if (orig_nvar == 0)
+ if (isl_basic_set_dim(bset, isl_dim_set) == 0)
return constant_on_domain(bset, 1);
bounded = isl_basic_set_is_bounded(bset);
morph = isl_basic_set_full_compression(bset);
bset = isl_morph_basic_set(isl_morph_copy(morph), bset);
- final_nvar = isl_basic_set_dim(bset, isl_dim_set);
-
pwqp = compressed_multiplicative_call(bset, fn);
- morph = isl_morph_remove_dom_dims(morph, isl_dim_set, 0, orig_nvar);
- morph = isl_morph_remove_ran_dims(morph, isl_dim_set, 0, final_nvar);
+ morph = isl_morph_dom_params(morph);
+ morph = isl_morph_ran_params(morph);
morph = isl_morph_inverse(morph);
- pwqp = isl_pw_qpolynomial_morph(pwqp, morph);
+ pwqp = isl_pw_qpolynomial_morph_domain(pwqp, morph);
return pwqp;
error:
if (!aff)
goto error;
dim = isl_qpolynomial_get_space(qp);
- dim = isl_space_from_domain(dim);
pos = 1 + isl_space_offset(dim, isl_dim_out);
- dim = isl_space_add_dims(dim, isl_dim_out, 1);
n_div = qp->div->n_row;
bmap = isl_basic_map_alloc_space(dim, n_div, 1, 2 * n_div);
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