}
/* Eliminate the specified n dimensions starting at first from the
- * constraints using Fourier-Motzkin, The dimensions themselves
+ * constraints using Fourier-Motzkin. The dimensions themselves
* are not removed.
*/
-struct isl_set *isl_set_eliminate_dims(struct isl_set *set,
- unsigned first, unsigned n)
+__isl_give isl_map *isl_map_eliminate(__isl_take isl_map *map,
+ enum isl_dim_type type, unsigned first, unsigned n)
{
int i;
- unsigned nparam;
- if (!set)
+ if (!map)
return NULL;
if (n == 0)
- return set;
+ return map;
- set = isl_set_cow(set);
- if (!set)
+ map = isl_map_cow(map);
+ if (!map)
return NULL;
- isl_assert(set->ctx, first+n <= isl_set_n_dim(set), goto error);
- nparam = isl_set_n_param(set);
+ isl_assert(map->ctx, first + n <= isl_map_dim(map, type), goto error);
+ first += pos(map->dim, type) - 1;
- for (i = 0; i < set->n; ++i) {
- set->p[i] = isl_basic_set_eliminate_vars(set->p[i],
- nparam + first, n);
- if (!set->p[i])
+ for (i = 0; i < map->n; ++i) {
+ map->p[i] = isl_basic_map_eliminate_vars(map->p[i], first, n);
+ if (!map->p[i])
goto error;
}
- return set;
+ return map;
error:
- isl_set_free(set);
+ isl_map_free(map);
return NULL;
}
+/* Eliminate the specified n dimensions starting at first from the
+ * constraints using Fourier-Motzkin. The dimensions themselves
+ * are not removed.
+ */
+__isl_give isl_set *isl_set_eliminate(__isl_take isl_set *set,
+ enum isl_dim_type type, unsigned first, unsigned n)
+{
+ return (isl_set *)isl_map_eliminate((isl_map *)set, type, first, n);
+}
+
+/* Eliminate the specified n dimensions starting at first from the
+ * constraints using Fourier-Motzkin. The dimensions themselves
+ * are not removed.
+ */
+__isl_give isl_set *isl_set_eliminate_dims(__isl_take isl_set *set,
+ unsigned first, unsigned n)
+{
+ return isl_set_eliminate(set, isl_dim_set, first, n);
+}
+
/* Project out n dimensions starting at first using Fourier-Motzkin */
struct isl_set *isl_set_remove_dims(struct isl_set *set,
unsigned first, unsigned n)
return isl_basic_map_from_basic_set(bset, dim);
}
-__isl_give isl_basic_map *isl_basic_map_add(__isl_take isl_basic_map *bmap,
- enum isl_dim_type type, unsigned n)
+__isl_give isl_basic_map *isl_basic_map_insert(__isl_take isl_basic_map *bmap,
+ enum isl_dim_type type, unsigned pos, unsigned n)
{
struct isl_dim *res_dim;
struct isl_basic_map *res;
struct isl_dim_map *dim_map;
- unsigned total, pos;
+ unsigned total, off;
+ enum isl_dim_type t;
if (n == 0)
return bmap;
if (!bmap)
return NULL;
- res_dim = isl_dim_add(isl_basic_map_get_dim(bmap), type, n);
+ res_dim = isl_dim_insert(isl_basic_map_get_dim(bmap), type, pos, n);
total = isl_basic_map_total_dim(bmap) + n;
dim_map = isl_dim_map_alloc(bmap->ctx, total);
- pos = 0;
- isl_dim_map_dim(dim_map, bmap->dim, isl_dim_param, pos);
- pos += isl_dim_size(res_dim, isl_dim_param);
- isl_dim_map_dim(dim_map, bmap->dim, isl_dim_in, pos);
- pos += isl_dim_size(res_dim, isl_dim_in);
- isl_dim_map_dim(dim_map, bmap->dim, isl_dim_out, pos);
- pos += isl_dim_size(res_dim, isl_dim_out);
- isl_dim_map_div(dim_map, bmap, pos);
+ off = 0;
+ for (t = isl_dim_param; t <= isl_dim_out; ++t) {
+ if (t != type) {
+ isl_dim_map_dim(dim_map, bmap->dim, t, off);
+ } else {
+ unsigned size = isl_basic_map_dim(bmap, t);
+ isl_dim_map_dim_range(dim_map, bmap->dim, t,
+ 0, pos, off);
+ isl_dim_map_dim_range(dim_map, bmap->dim, t,
+ pos, size - pos, off + pos + n);
+ }
+ off += isl_dim_size(res_dim, t);
+ }
+ isl_dim_map_div(dim_map, bmap, off);
res = isl_basic_map_alloc_dim(res_dim,
bmap->n_div, bmap->n_eq, bmap->n_ineq);
return isl_basic_map_finalize(res);
}
+__isl_give isl_basic_map *isl_basic_map_add(__isl_take isl_basic_map *bmap,
+ enum isl_dim_type type, unsigned n)
+{
+ if (!bmap)
+ return NULL;
+ return isl_basic_map_insert(bmap, type,
+ isl_basic_map_dim(bmap, type), n);
+}
+
__isl_give isl_basic_set *isl_basic_set_add(__isl_take isl_basic_set *bset,
enum isl_dim_type type, unsigned n)
{
return NULL;
}
-__isl_give isl_map *isl_map_add(__isl_take isl_map *map,
- enum isl_dim_type type, unsigned n)
+__isl_give isl_map *isl_map_insert(__isl_take isl_map *map,
+ enum isl_dim_type type, unsigned pos, unsigned n)
{
int i;
if (!map)
return NULL;
- map->dim = isl_dim_add(map->dim, type, n);
+ map->dim = isl_dim_insert(map->dim, type, pos, n);
if (!map->dim)
goto error;
for (i = 0; i < map->n; ++i) {
- map->p[i] = isl_basic_map_add(map->p[i], type, n);
+ map->p[i] = isl_basic_map_insert(map->p[i], type, pos, n);
if (!map->p[i])
goto error;
}
return NULL;
}
+__isl_give isl_map *isl_map_add(__isl_take isl_map *map,
+ enum isl_dim_type type, unsigned n)
+{
+ if (!map)
+ return NULL;
+ return isl_map_insert(map, type, isl_map_dim(map, type), n);
+}
+
__isl_give isl_set *isl_set_add(__isl_take isl_set *set,
enum isl_dim_type type, unsigned n)
{
return NULL;
}
+__isl_give isl_basic_map *isl_basic_map_move(__isl_take isl_basic_map *bmap,
+ enum isl_dim_type dst_type, unsigned dst_pos,
+ enum isl_dim_type src_type, unsigned src_pos, unsigned n)
+{
+ int i;
+ struct isl_dim_map *dim_map;
+ struct isl_basic_map *res;
+ enum isl_dim_type t;
+ unsigned total, off;
+
+ if (!bmap)
+ return NULL;
+ if (n == 0)
+ return bmap;
+
+ isl_assert(bmap->ctx, src_pos + n <= isl_basic_map_dim(bmap, src_type),
+ goto error);
+
+ if (dst_type == src_type && dst_pos == src_pos)
+ return bmap;
+
+ isl_assert(bmap->ctx, dst_type != src_type, goto error);
+
+ if (pos(bmap->dim, dst_type) + dst_pos ==
+ pos(bmap->dim, src_type) + src_pos +
+ ((src_type < dst_type) ? n : 0)) {
+ bmap = isl_basic_map_cow(bmap);
+ if (!bmap)
+ return NULL;
+
+ bmap->dim = isl_dim_move(bmap->dim, dst_type, dst_pos,
+ src_type, src_pos, n);
+ if (!bmap->dim)
+ goto error;
+
+ return bmap;
+ }
+
+ total = isl_basic_map_total_dim(bmap);
+ dim_map = isl_dim_map_alloc(bmap->ctx, total);
+
+ off = 0;
+ for (t = isl_dim_param; t <= isl_dim_out; ++t) {
+ unsigned size = isl_dim_size(bmap->dim, t);
+ if (t == dst_type) {
+ isl_dim_map_dim_range(dim_map, bmap->dim, t,
+ 0, dst_pos, off);
+ off += dst_pos;
+ isl_dim_map_dim_range(dim_map, bmap->dim, src_type,
+ src_pos, n, off);
+ off += n;
+ isl_dim_map_dim_range(dim_map, bmap->dim, t,
+ dst_pos, size - dst_pos, off);
+ off += size - dst_pos;
+ } else if (t == src_type) {
+ isl_dim_map_dim_range(dim_map, bmap->dim, t,
+ 0, src_pos, off);
+ off += src_pos;
+ isl_dim_map_dim_range(dim_map, bmap->dim, t,
+ src_pos + n, size - src_pos - n, off);
+ off += size - src_pos - n;
+ } else {
+ isl_dim_map_dim(dim_map, bmap->dim, t, off);
+ off += size;
+ }
+ }
+ isl_dim_map_div(dim_map, bmap, off + n);
+
+ res = isl_basic_map_alloc_dim(isl_basic_map_get_dim(bmap),
+ bmap->n_div, bmap->n_eq, bmap->n_ineq);
+ bmap = add_constraints_dim_map(res, bmap, dim_map);
+
+ bmap->dim = isl_dim_move(bmap->dim, dst_type, dst_pos,
+ src_type, src_pos, n);
+ if (!bmap->dim)
+ goto error;
+
+ return bmap;
+error:
+ isl_basic_map_free(bmap);
+ return NULL;
+}
+
+__isl_give isl_set *isl_set_move(__isl_take isl_set *set,
+ enum isl_dim_type dst_type, unsigned dst_pos,
+ enum isl_dim_type src_type, unsigned src_pos, unsigned n)
+{
+ if (!set)
+ return NULL;
+ isl_assert(set->ctx, dst_type != isl_dim_in, goto error);
+ return (isl_set *)isl_map_move((isl_map *)set, dst_type, dst_pos,
+ src_type, src_pos, n);
+error:
+ isl_set_free(set);
+ return NULL;
+}
+
+__isl_give isl_map *isl_map_move(__isl_take isl_map *map,
+ enum isl_dim_type dst_type, unsigned dst_pos,
+ enum isl_dim_type src_type, unsigned src_pos, unsigned n)
+{
+ int i;
+
+ if (!map)
+ return NULL;
+ if (n == 0)
+ return map;
+
+ isl_assert(map->ctx, src_pos + n <= isl_map_dim(map, src_type),
+ goto error);
+
+ if (dst_type == src_type && dst_pos == src_pos)
+ return map;
+
+ isl_assert(map->ctx, dst_type != src_type, goto error);
+
+ map = isl_map_cow(map);
+ if (!map)
+ return NULL;
+
+ map->dim = isl_dim_move(map->dim, dst_type, dst_pos, src_type, src_pos, n);
+ if (!map->dim)
+ goto error;
+
+ for (i = 0; i < map->n; ++i) {
+ map->p[i] = isl_basic_map_move(map->p[i], dst_type, dst_pos,
+ src_type, src_pos, n);
+ if (!map->p[i])
+ goto error;
+ }
+
+ return map;
+error:
+ isl_map_free(map);
+ return NULL;
+}
+
/* Move the specified dimensions to the last columns right before
* the divs. Don't change the dimension specification of bmap.
* That's the responsibility of the caller.
if (!map)
goto error;
+ if (isl_map_dim(map, isl_dim_in) == 0)
+ return (isl_set *)map;
+
map = isl_map_cow(map);
if (!map)
goto error;
set = (struct isl_set *) map;
- if (set->dim->n_in != 0) {
- set->dim = isl_dim_drop_inputs(set->dim, 0, set->dim->n_in);
- if (!set->dim)
- goto error;
- }
+ set->dim = isl_dim_drop_inputs(set->dim, 0, set->dim->n_in);
+ if (!set->dim)
+ goto error;
for (i = 0; i < map->n; ++i) {
set->p[i] = isl_basic_map_range(map->p[i]);
if (!set->p[i])
return NULL;
}
+__isl_give isl_set *isl_set_split_dims(__isl_take isl_set *set,
+ enum isl_dim_type type, unsigned first, unsigned n)
+{
+ int i;
+ isl_basic_set *nonneg = NULL;
+ isl_basic_set *neg = NULL;
+
+ if (!set)
+ return NULL;
+ if (n == 0)
+ return set;
+
+ isl_assert(set->ctx, first + n <= isl_set_dim(set, type), goto error);
+
+ for (i = 0; i < n; ++i) {
+ int k;
+
+ neg = NULL;
+ nonneg = isl_basic_set_alloc_dim(isl_set_get_dim(set), 0, 0, 1);
+ k = isl_basic_set_alloc_inequality(nonneg);
+ if (k < 0)
+ goto error;
+ isl_seq_clr(nonneg->ineq[k], 1 + isl_basic_set_total_dim(nonneg));
+ isl_int_set_si(nonneg->ineq[k][pos(set->dim, type) + first + i], 1);
+
+ neg = isl_basic_set_alloc_dim(isl_set_get_dim(set), 0, 0, 1);
+ k = isl_basic_set_alloc_inequality(neg);
+ if (k < 0)
+ goto error;
+ isl_seq_clr(neg->ineq[k], 1 + isl_basic_set_total_dim(neg));
+ isl_int_set_si(neg->ineq[k][0], -1);
+ isl_int_set_si(neg->ineq[k][pos(set->dim, type) + first + i], -1);
+
+ set = isl_set_intersect(set, isl_basic_set_union(nonneg, neg));
+ }
+
+ return set;
+error:
+ isl_basic_set_free(nonneg);
+ isl_basic_set_free(neg);
+ isl_set_free(set);
+ return NULL;
+}
+
int isl_set_is_equal(struct isl_set *set1, struct isl_set *set2)
{
return isl_map_is_equal((struct isl_map *)set1, (struct isl_map *)set2);
return 0;
}
+__isl_give isl_basic_set *isl_basic_set_lift(__isl_take isl_basic_set *bset)
+{
+ struct isl_dim *dim;
+
+ if (!bset)
+ return NULL;
+
+ if (bset->n_div == 0)
+ return bset;
+
+ bset = isl_basic_set_cow(bset);
+ if (!bset)
+ return NULL;
+
+ dim = isl_basic_set_get_dim(bset);
+ dim = isl_dim_add(dim, isl_dim_set, bset->n_div);
+ if (!dim)
+ goto error;
+ isl_dim_free(bset->dim);
+ bset->dim = dim;
+ bset->n_div = 0;
+
+ return bset;
+error:
+ isl_basic_set_free(bset);
+ return NULL;
+}
+
+__isl_give isl_set *isl_set_lift(__isl_take isl_set *set)
+{
+ int i;
+ struct isl_dim *dim;
+ unsigned n_div;
+
+ set = isl_set_align_divs(set);
+
+ if (!set)
+ return NULL;
+ if (set->n == 0 || set->p[0]->n_div == 0)
+ return set;
+
+ set = isl_set_cow(set);
+ if (!set)
+ return NULL;
+
+ n_div = set->p[0]->n_div;
+ dim = isl_set_get_dim(set);
+ dim = isl_dim_add(dim, isl_dim_set, n_div);
+ if (!dim)
+ goto error;
+ isl_dim_free(set->dim);
+ set->dim = dim;
+
+ for (i = 0; i < set->n; ++i) {
+ set->p[i] = isl_basic_set_lift(set->p[i]);
+ if (!set->p[i])
+ goto error;
+ }
+
+ return set;
+error:
+ isl_set_free(set);
+ return NULL;
+}
+
__isl_give isl_map *isl_set_lifting(__isl_take isl_set *set)
{
struct isl_dim *dim;
projects / platform / upstream / isl.git / blobdiff