/*
* 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_range.h>
#include <isl_local_space_private.h>
#include <isl_aff_private.h>
+#include <isl_val_private.h>
#include <isl_config.h>
static unsigned pos(__isl_keep isl_space *dim, enum isl_dim_type type)
return NULL;
}
+/* Multiply the constant polynomial "up" by "v".
+ */
+static __isl_give struct isl_upoly *isl_upoly_cst_scale_val(
+ __isl_take struct isl_upoly *up, __isl_keep isl_val *v)
+{
+ struct isl_upoly_cst *cst;
+
+ if (isl_upoly_is_zero(up))
+ return up;
+
+ up = isl_upoly_cow(up);
+ if (!up)
+ return NULL;
+
+ cst = isl_upoly_as_cst(up);
+
+ isl_int_mul(cst->n, cst->n, v->n);
+ isl_int_mul(cst->d, cst->d, v->d);
+ isl_upoly_cst_reduce(cst);
+
+ return up;
+}
+
+/* Multiply the polynomial "up" by "v".
+ */
+static __isl_give struct isl_upoly *isl_upoly_scale_val(
+ __isl_take struct isl_upoly *up, __isl_keep isl_val *v)
+{
+ int i;
+ struct isl_upoly_rec *rec;
+
+ if (!up)
+ return NULL;
+
+ if (isl_upoly_is_cst(up))
+ return isl_upoly_cst_scale_val(up, v);
+
+ up = isl_upoly_cow(up);
+ rec = isl_upoly_as_rec(up);
+ if (!rec)
+ goto error;
+
+ for (i = 0; i < rec->n; ++i) {
+ rec->p[i] = isl_upoly_scale_val(rec->p[i], v);
+ if (!rec->p[i])
+ goto error;
+ }
+
+ return up;
+error:
+ isl_upoly_free(up);
+ return NULL;
+}
+
__isl_give struct isl_upoly *isl_upoly_mul_cst(__isl_take struct isl_upoly *up1,
__isl_take struct isl_upoly *up2)
{
return isl_qpolynomial_mul_isl_int(qp, v);
}
+/* Multiply "qp" by "v".
+ */
+__isl_give isl_qpolynomial *isl_qpolynomial_scale_val(
+ __isl_take isl_qpolynomial *qp, __isl_take isl_val *v)
+{
+ if (!qp || !v)
+ goto error;
+
+ if (!isl_val_is_rat(v))
+ isl_die(isl_qpolynomial_get_ctx(qp), isl_error_invalid,
+ "expecting rational factor", goto error);
+
+ if (isl_val_is_one(v)) {
+ isl_val_free(v);
+ return qp;
+ }
+
+ if (isl_val_is_zero(v)) {
+ isl_space *space;
+
+ space = isl_qpolynomial_get_domain_space(qp);
+ isl_qpolynomial_free(qp);
+ isl_val_free(v);
+ return isl_qpolynomial_zero_on_domain(space);
+ }
+
+ qp = isl_qpolynomial_cow(qp);
+ if (!qp)
+ goto error;
+
+ qp->upoly = isl_upoly_scale_val(qp->upoly, v);
+ if (!qp->upoly)
+ qp = isl_qpolynomial_free(qp);
+
+ isl_val_free(v);
+ return qp;
+error:
+ isl_val_free(v);
+ isl_qpolynomial_free(qp);
+ return NULL;
+}
+
__isl_give isl_qpolynomial *isl_qpolynomial_mul(__isl_take isl_qpolynomial *qp1,
__isl_take isl_qpolynomial *qp2)
{
return 1;
}
+/* Return the constant term of "up".
+ */
+static __isl_give isl_val *isl_upoly_get_constant_val(
+ __isl_keep struct isl_upoly *up)
+{
+ struct isl_upoly_cst *cst;
+
+ if (!up)
+ return NULL;
+
+ while (!isl_upoly_is_cst(up)) {
+ struct isl_upoly_rec *rec;
+
+ rec = isl_upoly_as_rec(up);
+ if (!rec)
+ return NULL;
+ up = rec->p[0];
+ }
+
+ cst = isl_upoly_as_cst(up);
+ if (!cst)
+ return NULL;
+ return isl_val_rat_from_isl_int(cst->up.ctx, cst->n, cst->d);
+}
+
+/* Return the constant term of "qp".
+ */
+__isl_give isl_val *isl_qpolynomial_get_constant_val(
+ __isl_keep isl_qpolynomial *qp)
+{
+ if (!qp)
+ return NULL;
+
+ return isl_upoly_get_constant_val(qp->upoly);
+}
+
int isl_upoly_is_affine(__isl_keep struct isl_upoly *up)
{
int is_cst;
return qp;
}
+/* Return an isl_qpolynomial that is equal to "val" on domain space "domain".
+ */
+__isl_give isl_qpolynomial *isl_qpolynomial_val_on_domain(
+ __isl_take isl_space *domain, __isl_take isl_val *val)
+{
+ isl_qpolynomial *qp;
+ struct isl_upoly_cst *cst;
+
+ if (!domain || !val)
+ goto error;
+
+ qp = isl_qpolynomial_alloc(domain, 0, isl_upoly_zero(domain->ctx));
+ if (!qp)
+ goto error;
+
+ cst = isl_upoly_as_cst(qp->upoly);
+ isl_int_set(cst->n, val->n);
+ isl_int_set(cst->d, val->d);
+
+ isl_val_free(val);
+ return qp;
+error:
+ isl_space_free(domain);
+ isl_val_free(val);
+ return NULL;
+}
+
static int up_set_active(__isl_keep struct isl_upoly *up, int *active, int d)
{
struct isl_upoly_rec *rec;
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);
#undef DEFAULT_IS_ZERO
#define DEFAULT_IS_ZERO 1
+#define NO_PULLBACK
+
#include <isl_pw_templ.c>
#undef UNION
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);
isl_int_set(*d, term->d);
}
+/* Return the coefficient of the term "term".
+ */
+__isl_give isl_val *isl_term_get_coefficient_val(__isl_keep isl_term *term)
+{
+ if (!term)
+ return NULL;
+
+ return isl_val_rat_from_isl_int(isl_term_get_ctx(term),
+ term->n, term->d);
+}
+
int isl_term_get_exp(__isl_keep isl_term *term,
enum isl_dim_type type, unsigned pos)
{
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));
-}
-
__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)
projects / platform / upstream / isl.git / blobdiff