/*
* Copyright 2008-2009 Katholieke Universiteit Leuven
*
- * 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, K.U.Leuven, Departement
* Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
isl_mat *bset_div = NULL;
isl_mat *div = NULL;
enum isl_lp_result res;
+ int bset_n_div;
if (!bset || !obj)
return isl_lp_error;
"expecting integer affine expression",
return isl_lp_error);
- if (bset->n_div == 0 && obj->ls->div->n_row == 0)
+ bset_n_div = isl_basic_set_dim(bset, isl_dim_div);
+ if (bset_n_div == 0 && obj->ls->div->n_row == 0)
return basic_set_opt(bset, max, obj, opt);
bset = isl_basic_set_copy(bset);
obj = isl_aff_copy(obj);
bset_div = extract_divs(bset);
- exp1 = isl_alloc_array(ctx, int, bset_div->n_row);
+ exp1 = isl_alloc_array(ctx, int, bset_n_div);
exp2 = isl_alloc_array(ctx, int, obj->ls->div->n_row);
if (!bset_div || !exp1 || !exp2)
goto error;
/* Compute the minimum (maximum if max is set) of the integer affine
* expression obj over the points in set and put the result in *opt.
+ *
+ * The parameters are assumed to have been aligned.
*/
-enum isl_lp_result isl_set_opt(__isl_keep isl_set *set, int max,
+static enum isl_lp_result isl_set_opt_aligned(__isl_keep isl_set *set, int max,
__isl_keep isl_aff *obj, isl_int *opt)
{
int i;
return empty ? isl_lp_empty : isl_lp_ok;
}
+/* Compute the minimum (maximum if max is set) of the integer affine
+ * expression obj over the points in set and put the result in *opt.
+ */
+enum isl_lp_result isl_set_opt(__isl_keep isl_set *set, int max,
+ __isl_keep isl_aff *obj, isl_int *opt)
+{
+ enum isl_lp_result res;
+
+ if (!set || !obj)
+ return isl_lp_error;
+
+ if (isl_space_match(set->dim, isl_dim_param,
+ obj->ls->dim, isl_dim_param))
+ return isl_set_opt_aligned(set, max, obj, opt);
+
+ set = isl_set_copy(set);
+ obj = isl_aff_copy(obj);
+ set = isl_set_align_params(set, isl_aff_get_domain_space(obj));
+ obj = isl_aff_align_params(obj, isl_set_get_space(set));
+
+ res = isl_set_opt_aligned(set, max, obj, opt);
+
+ isl_set_free(set);
+ isl_aff_free(obj);
+
+ return res;
+}
+
enum isl_lp_result isl_basic_set_max(__isl_keep isl_basic_set *bset,
__isl_keep isl_aff *obj, isl_int *opt)
{