#include "isl_tab.h"
#include "isl_sample.h"
#include <isl_mat_private.h>
+#include <isl_aff_private.h>
+#include <isl_config.h>
/*
* The implementation of parametric integer linear programming in this file
struct isl_basic_set *bset = NULL;
struct isl_mat *mat = NULL;
unsigned off;
- int row, i;
+ int row;
isl_int m;
if (sol->error || !tab)
{
int i;
struct isl_basic_map *bmap = NULL;
- isl_basic_set *context_bset;
unsigned n_eq;
unsigned n_ineq;
unsigned nparam;
bmap = isl_basic_map_finalize(bmap);
sol->map = isl_map_grow(sol->map, 1);
sol->map = isl_map_add_basic_map(sol->map, bmap);
- if (!sol->map)
- goto error;
isl_basic_set_free(dom);
isl_mat_free(M);
+ if (!sol->map)
+ sol->sol.error = 1;
return;
error:
isl_basic_set_free(dom);
* is satisfied. This function is not called from the current code
* but is useful during debugging.
*/
+static void check_lexpos(struct isl_tab *tab) __attribute__ ((unused));
static void check_lexpos(struct isl_tab *tab)
{
unsigned off = 2 + tab->M;
static struct isl_tab *check_integer_feasible(struct isl_tab *tab)
{
struct isl_tab_undo *snap;
- int feasible;
if (!tab)
return NULL;
return clex->tab;
}
-static void context_lex_extend(struct isl_context *context, int n)
-{
- struct isl_context_lex *clex = (struct isl_context_lex *)context;
- if (!clex->tab)
- return;
- if (isl_tab_extend_cons(clex->tab, n) >= 0)
- return;
- isl_tab_free(clex->tab);
- clex->tab = NULL;
-}
-
static void context_lex_add_eq(struct isl_context *context, isl_int *eq,
int check, int update)
{
static struct isl_tab *add_gbr_eq(struct isl_tab *tab, isl_int *eq)
{
- int r;
-
if (!tab)
return NULL;
{
int i;
int col;
- unsigned dim = tab->n_var - tab->n_param - tab->n_div;
if (tab->n_var == 0)
return -1;
{
struct isl_context_gbr *cgbr = (struct isl_context_gbr *)context;
struct isl_ctx *ctx;
- int i;
- enum isl_lp_result res;
unsigned n_ineq;
ctx = cgbr->tab->mat->ctx;
struct isl_sol_for {
struct isl_sol sol;
int (*fn)(__isl_take isl_basic_set *dom,
- __isl_take isl_mat *map, void *user);
+ __isl_take isl_aff_list *list, void *user);
void *user;
};
*
* Instead of constructing a basic map, this function calls a user
* defined function with the current context as a basic set and
- * an affine matrix representing the relation between the input and output.
- * The number of rows in this matrix is equal to one plus the number
- * of output variables. The number of columns is equal to one plus
- * the total dimension of the context, i.e., the number of parameters,
- * input variables and divs. Since some of the columns in the matrix
- * may refer to the divs, the basic set is not simplified.
- * (Simplification may reorder or remove divs.)
+ * a list of affine expressions representing the relation between
+ * the input and output. The space over which the affine expressions
+ * are defined is the same as that of the domain. The number of
+ * affine expressions in the list is equal to the number of output variables.
*/
static void sol_for_add(struct isl_sol_for *sol,
struct isl_basic_set *dom, struct isl_mat *M)
{
+ int i;
+ isl_ctx *ctx;
+ isl_local_space *ls;
+ isl_aff *aff;
+ isl_aff_list *list;
+
if (sol->sol.error || !dom || !M)
goto error;
+ ctx = isl_basic_set_get_ctx(dom);
+ ls = isl_basic_set_get_local_space(dom);
+ list = isl_aff_list_alloc(ctx, M->n_row - 1);
+ for (i = 1; i < M->n_row; ++i) {
+ aff = isl_aff_alloc(isl_local_space_copy(ls));
+ if (aff) {
+ isl_int_set_si(aff->v->el[0], 1);
+ isl_seq_cpy(aff->v->el + 1, M->row[i], M->n_col);
+ }
+ list = isl_aff_list_add(list, aff);
+ }
+ isl_local_space_free(ls);
+
dom = isl_basic_set_finalize(dom);
- if (sol->fn(isl_basic_set_copy(dom), isl_mat_copy(M), sol->user) < 0)
+ if (sol->fn(isl_basic_set_copy(dom), list, sol->user) < 0)
goto error;
isl_basic_set_free(dom);
}
static struct isl_sol_for *sol_for_init(struct isl_basic_map *bmap, int max,
- int (*fn)(__isl_take isl_basic_set *dom, __isl_take isl_mat *map,
+ int (*fn)(__isl_take isl_basic_set *dom, __isl_take isl_aff_list *list,
void *user),
void *user)
{
}
int isl_basic_map_foreach_lexopt(__isl_keep isl_basic_map *bmap, int max,
- int (*fn)(__isl_take isl_basic_set *dom, __isl_take isl_mat *map,
+ int (*fn)(__isl_take isl_basic_set *dom, __isl_take isl_aff_list *list,
void *user),
void *user)
{
}
int isl_basic_map_foreach_lexmin(__isl_keep isl_basic_map *bmap,
- int (*fn)(__isl_take isl_basic_set *dom, __isl_take isl_mat *map,
+ int (*fn)(__isl_take isl_basic_set *dom, __isl_take isl_aff_list *list,
void *user),
void *user)
{
}
int isl_basic_map_foreach_lexmax(__isl_keep isl_basic_map *bmap,
- int (*fn)(__isl_take isl_basic_set *dom, __isl_take isl_mat *map,
+ int (*fn)(__isl_take isl_basic_set *dom, __isl_take isl_aff_list *list,
void *user),
void *user)
{
return isl_basic_map_foreach_lexopt(bmap, 1, fn, user);
}
+int isl_basic_set_foreach_lexmax(__isl_keep isl_basic_set *bset,
+ int (*fn)(__isl_take isl_basic_set *dom, __isl_take isl_aff_list *list,
+ void *user),
+ void *user)
+{
+ return isl_basic_map_foreach_lexmax(bset, fn, user);
+}
+
/* Check if the given sequence of len variables starting at pos
* represents a trivial (i.e., zero) solution.
* The variables are assumed to be non-negative and to come in pairs,
int (*conflict)(int con, void *user), void *user)
{
int i, j;
- int need_update = 0;
int r;
isl_ctx *ctx = isl_basic_set_get_ctx(bset);
isl_vec *v = NULL;
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