nexmon – Rev 1
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#include <isl_map_private.h>
#include <isl_point_private.h>
#include <isl/set.h>
#include <isl_sample.h>
#include <isl_scan.h>
#include <isl/seq.h>
#include <isl_space_private.h>
isl_ctx *isl_point_get_ctx(__isl_keep isl_point *pnt)
{
return pnt ? isl_space_get_ctx(pnt->dim) : NULL;
}
__isl_give isl_space *isl_point_get_space(__isl_keep isl_point *pnt)
{
return pnt ? isl_space_copy(pnt->dim) : NULL;
}
__isl_give isl_point *isl_point_alloc(__isl_take isl_space *dim,
__isl_take isl_vec *vec)
{
struct isl_point *pnt;
if (!dim || !vec)
goto error;
if (vec->size > 1 + isl_space_dim(dim, isl_dim_all)) {
vec = isl_vec_cow(vec);
if (!vec)
goto error;
vec->size = 1 + isl_space_dim(dim, isl_dim_all);
}
pnt = isl_alloc_type(dim->ctx, struct isl_point);
if (!pnt)
goto error;
pnt->ref = 1;
pnt->dim = dim;
pnt->vec = vec;
return pnt;
error:
isl_space_free(dim);
isl_vec_free(vec);
return NULL;
}
__isl_give isl_point *isl_point_zero(__isl_take isl_space *dim)
{
isl_vec *vec;
if (!dim)
return NULL;
vec = isl_vec_alloc(dim->ctx, 1 + isl_space_dim(dim, isl_dim_all));
if (!vec)
goto error;
isl_int_set_si(vec->el[0], 1);
isl_seq_clr(vec->el + 1, vec->size - 1);
return isl_point_alloc(dim, vec);
error:
isl_space_free(dim);
return NULL;
}
__isl_give isl_point *isl_point_dup(__isl_keep isl_point *pnt)
{
struct isl_point *pnt2;
if (!pnt)
return NULL;
pnt2 = isl_point_alloc(isl_space_copy(pnt->dim), isl_vec_copy(pnt->vec));
return pnt2;
}
__isl_give isl_point *isl_point_cow(__isl_take isl_point *pnt)
{
struct isl_point *pnt2;
if (!pnt)
return NULL;
if (pnt->ref == 1)
return pnt;
pnt2 = isl_point_dup(pnt);
isl_point_free(pnt);
return pnt2;
}
__isl_give isl_point *isl_point_copy(__isl_keep isl_point *pnt)
{
if (!pnt)
return NULL;
pnt->ref++;
return pnt;
}
void isl_point_free(__isl_take isl_point *pnt)
{
if (!pnt)
return;
if (--pnt->ref > 0)
return;
isl_space_free(pnt->dim);
isl_vec_free(pnt->vec);
free(pnt);
}
__isl_give isl_point *isl_point_void(__isl_take isl_space *dim)
{
if (!dim)
return NULL;
return isl_point_alloc(dim, isl_vec_alloc(dim->ctx, 0));
}
int isl_point_is_void(__isl_keep isl_point *pnt)
{
if (!pnt)
return -1;
return pnt->vec->size == 0;
}
int isl_point_get_coordinate(__isl_keep isl_point *pnt,
enum isl_dim_type type, int pos, isl_int *v)
{
if (!pnt || isl_point_is_void(pnt))
return -1;
if (pos < 0 || pos >= isl_space_dim(pnt->dim, type))
isl_die(isl_point_get_ctx(pnt), isl_error_invalid,
"position out of bounds", return -1);
if (type == isl_dim_set)
pos += isl_space_dim(pnt->dim, isl_dim_param);
isl_int_set(*v, pnt->vec->el[1 + pos]);
return 0;
}
__isl_give isl_point *isl_point_set_coordinate(__isl_take isl_point *pnt,
enum isl_dim_type type, int pos, isl_int v)
{
if (!pnt || isl_point_is_void(pnt))
return pnt;
pnt = isl_point_cow(pnt);
if (!pnt)
return NULL;
pnt->vec = isl_vec_cow(pnt->vec);
if (!pnt->vec)
goto error;
if (type == isl_dim_set)
pos += isl_space_dim(pnt->dim, isl_dim_param);
isl_int_set(pnt->vec->el[1 + pos], v);
return pnt;
error:
isl_point_free(pnt);
return NULL;
}
__isl_give isl_point *isl_point_add_ui(__isl_take isl_point *pnt,
enum isl_dim_type type, int pos, unsigned val)
{
if (!pnt || isl_point_is_void(pnt))
return pnt;
pnt = isl_point_cow(pnt);
if (!pnt)
return NULL;
pnt->vec = isl_vec_cow(pnt->vec);
if (!pnt->vec)
goto error;
if (type == isl_dim_set)
pos += isl_space_dim(pnt->dim, isl_dim_param);
isl_int_add_ui(pnt->vec->el[1 + pos], pnt->vec->el[1 + pos], val);
return pnt;
error:
isl_point_free(pnt);
return NULL;
}
__isl_give isl_point *isl_point_sub_ui(__isl_take isl_point *pnt,
enum isl_dim_type type, int pos, unsigned val)
{
if (!pnt || isl_point_is_void(pnt))
return pnt;
pnt = isl_point_cow(pnt);
if (!pnt)
return NULL;
pnt->vec = isl_vec_cow(pnt->vec);
if (!pnt->vec)
goto error;
if (type == isl_dim_set)
pos += isl_space_dim(pnt->dim, isl_dim_param);
isl_int_sub_ui(pnt->vec->el[1 + pos], pnt->vec->el[1 + pos], val);
return pnt;
error:
isl_point_free(pnt);
return NULL;
}
struct isl_foreach_point {
struct isl_scan_callback callback;
int (*fn)(__isl_take isl_point *pnt, void *user);
void *user;
isl_space *dim;
};
static int foreach_point(struct isl_scan_callback *cb, __isl_take isl_vec *sample)
{
struct isl_foreach_point *fp = (struct isl_foreach_point *)cb;
isl_point *pnt;
pnt = isl_point_alloc(isl_space_copy(fp->dim), sample);
return fp->fn(pnt, fp->user);
}
int isl_set_foreach_point(__isl_keep isl_set *set,
int (*fn)(__isl_take isl_point *pnt, void *user), void *user)
{
struct isl_foreach_point fp = { { &foreach_point }, fn, user };
int i;
if (!set)
return -1;
fp.dim = isl_set_get_space(set);
if (!fp.dim)
return -1;
set = isl_set_copy(set);
set = isl_set_cow(set);
set = isl_set_make_disjoint(set);
set = isl_set_compute_divs(set);
if (!set)
goto error;
for (i = 0; i < set->n; ++i)
if (isl_basic_set_scan(isl_basic_set_copy(set->p[i]),
&fp.callback) < 0)
goto error;
isl_set_free(set);
isl_space_free(fp.dim);
return 0;
error:
isl_set_free(set);
isl_space_free(fp.dim);
return -1;
}
/* Return 1 if "bmap" contains the point "point".
* "bmap" is assumed to have known divs.
* The point is first extended with the divs and then passed
* to basic_map_contains.
*/
int isl_basic_map_contains_point(__isl_keep isl_basic_map *bmap,
__isl_keep isl_point *point)
{
int i;
struct isl_vec *vec;
unsigned dim;
int contains;
if (!bmap || !point)
return -1;
isl_assert(bmap->ctx, isl_space_is_equal(bmap->dim, point->dim), return -1);
if (bmap->n_div == 0)
return isl_basic_map_contains(bmap, point->vec);
dim = isl_basic_map_total_dim(bmap) - bmap->n_div;
vec = isl_vec_alloc(bmap->ctx, 1 + dim + bmap->n_div);
if (!vec)
return -1;
isl_seq_cpy(vec->el, point->vec->el, point->vec->size);
for (i = 0; i < bmap->n_div; ++i) {
isl_seq_inner_product(bmap->div[i] + 1, vec->el,
1 + dim + i, &vec->el[1+dim+i]);
isl_int_fdiv_q(vec->el[1+dim+i], vec->el[1+dim+i],
bmap->div[i][0]);
}
contains = isl_basic_map_contains(bmap, vec);
isl_vec_free(vec);
return contains;
}
int isl_map_contains_point(__isl_keep isl_map *map, __isl_keep isl_point *point)
{
int i;
int found = 0;
if (!map || !point)
return -1;
map = isl_map_copy(map);
map = isl_map_compute_divs(map);
if (!map)
return -1;
for (i = 0; i < map->n; ++i) {
found = isl_basic_map_contains_point(map->p[i], point);
if (found < 0)
goto error;
if (found)
break;
}
isl_map_free(map);
return found;
error:
isl_map_free(map);
return -1;
}
int isl_set_contains_point(__isl_keep isl_set *set, __isl_keep isl_point *point)
{
return isl_map_contains_point((isl_map *)set, point);
}
__isl_give isl_basic_set *isl_basic_set_from_point(__isl_take isl_point *pnt)
{
isl_basic_set *bset;
isl_basic_set *model;
model = isl_basic_set_empty(isl_space_copy(pnt->dim));
bset = isl_basic_set_from_vec(isl_vec_copy(pnt->vec));
bset = isl_basic_set_from_underlying_set(bset, model);
isl_point_free(pnt);
return bset;
}
__isl_give isl_set *isl_set_from_point(__isl_take isl_point *pnt)
{
isl_basic_set *bset;
bset = isl_basic_set_from_point(pnt);
return isl_set_from_basic_set(bset);
}
__isl_give isl_basic_set *isl_basic_set_box_from_points(
__isl_take isl_point *pnt1, __isl_take isl_point *pnt2)
{
isl_basic_set *bset;
unsigned total;
int i;
int k;
isl_int t;
isl_int_init(t);
if (!pnt1 || !pnt2)
goto error;
isl_assert(pnt1->dim->ctx,
isl_space_is_equal(pnt1->dim, pnt2->dim), goto error);
if (isl_point_is_void(pnt1) && isl_point_is_void(pnt2)) {
isl_space *dim = isl_space_copy(pnt1->dim);
isl_point_free(pnt1);
isl_point_free(pnt2);
isl_int_clear(t);
return isl_basic_set_empty(dim);
}
if (isl_point_is_void(pnt1)) {
isl_point_free(pnt1);
isl_int_clear(t);
return isl_basic_set_from_point(pnt2);
}
if (isl_point_is_void(pnt2)) {
isl_point_free(pnt2);
isl_int_clear(t);
return isl_basic_set_from_point(pnt1);
}
total = isl_space_dim(pnt1->dim, isl_dim_all);
bset = isl_basic_set_alloc_space(isl_space_copy(pnt1->dim), 0, 0, 2 * total);
for (i = 0; i < total; ++i) {
isl_int_mul(t, pnt1->vec->el[1 + i], pnt2->vec->el[0]);
isl_int_submul(t, pnt2->vec->el[1 + i], pnt1->vec->el[0]);
k = isl_basic_set_alloc_inequality(bset);
if (k < 0)
goto error;
isl_seq_clr(bset->ineq[k] + 1, total);
if (isl_int_is_pos(t)) {
isl_int_set_si(bset->ineq[k][1 + i], -1);
isl_int_set(bset->ineq[k][0], pnt1->vec->el[1 + i]);
} else {
isl_int_set_si(bset->ineq[k][1 + i], 1);
isl_int_neg(bset->ineq[k][0], pnt1->vec->el[1 + i]);
}
isl_int_fdiv_q(bset->ineq[k][0], bset->ineq[k][0], pnt1->vec->el[0]);
k = isl_basic_set_alloc_inequality(bset);
if (k < 0)
goto error;
isl_seq_clr(bset->ineq[k] + 1, total);
if (isl_int_is_pos(t)) {
isl_int_set_si(bset->ineq[k][1 + i], 1);
isl_int_neg(bset->ineq[k][0], pnt2->vec->el[1 + i]);
} else {
isl_int_set_si(bset->ineq[k][1 + i], -1);
isl_int_set(bset->ineq[k][0], pnt2->vec->el[1 + i]);
}
isl_int_fdiv_q(bset->ineq[k][0], bset->ineq[k][0], pnt2->vec->el[0]);
}
bset = isl_basic_set_finalize(bset);
isl_point_free(pnt1);
isl_point_free(pnt2);
isl_int_clear(t);
return bset;
error:
isl_point_free(pnt1);
isl_point_free(pnt2);
isl_int_clear(t);
return NULL;
}
__isl_give isl_set *isl_set_box_from_points(__isl_take isl_point *pnt1,
__isl_take isl_point *pnt2)
{
isl_basic_set *bset;
bset = isl_basic_set_box_from_points(pnt1, pnt2);
return isl_set_from_basic_set(bset);
}
__isl_give isl_printer *isl_printer_print_point(
__isl_take isl_printer *p, __isl_keep isl_point *pnt)
{
int i;
unsigned nparam;
unsigned dim;
if (!pnt)
return p;
if (isl_point_is_void(pnt)) {
p = isl_printer_print_str(p, "void");
return p;
}
nparam = isl_space_dim(pnt->dim, isl_dim_param);
dim = isl_space_dim(pnt->dim, isl_dim_set);
if (nparam > 0) {
p = isl_printer_print_str(p, "[");
for (i = 0; i < nparam; ++i) {
const char *name;
if (i)
p = isl_printer_print_str(p, ", ");
name = isl_space_get_dim_name(pnt->dim, isl_dim_param, i);
if (name) {
p = isl_printer_print_str(p, name);
p = isl_printer_print_str(p, " = ");
}
p = isl_printer_print_isl_int(p, pnt->vec->el[1 + i]);
if (!isl_int_is_one(pnt->vec->el[0])) {
p = isl_printer_print_str(p, "/");
p = isl_printer_print_isl_int(p, pnt->vec->el[0]);
}
}
p = isl_printer_print_str(p, "]");
p = isl_printer_print_str(p, " -> ");
}
p = isl_printer_print_str(p, "[");
for (i = 0; i < dim; ++i) {
if (i)
p = isl_printer_print_str(p, ", ");
p = isl_printer_print_isl_int(p, pnt->vec->el[1 + nparam + i]);
if (!isl_int_is_one(pnt->vec->el[0])) {
p = isl_printer_print_str(p, "/");
p = isl_printer_print_isl_int(p, pnt->vec->el[0]);
}
}
p = isl_printer_print_str(p, "]");
return p;
}