#include <isl_ctx_private.h>
#include <isl_map_private.h>
#include <isl_local_space_private.h>
-#include <isl_dim_private.h>
+#include <isl_space_private.h>
#include <isl_mat_private.h>
+#include <isl_aff_private.h>
#include <isl/seq.h>
isl_ctx *isl_local_space_get_ctx(__isl_keep isl_local_space *ls)
return ls ? ls->dim->ctx : NULL;
}
-__isl_give isl_local_space *isl_local_space_alloc_div(__isl_take isl_dim *dim,
+__isl_give isl_local_space *isl_local_space_alloc_div(__isl_take isl_space *dim,
__isl_take isl_mat *div)
{
isl_ctx *ctx;
if (!dim)
goto error;
- ctx = isl_dim_get_ctx(dim);
+ ctx = isl_space_get_ctx(dim);
ls = isl_calloc_type(ctx, struct isl_local_space);
if (!ls)
goto error;
return ls;
error:
- isl_dim_free(dim);
+ isl_space_free(dim);
isl_local_space_free(ls);
return NULL;
}
-__isl_give isl_local_space *isl_local_space_alloc(__isl_take isl_dim *dim,
+__isl_give isl_local_space *isl_local_space_alloc(__isl_take isl_space *dim,
unsigned n_div)
{
isl_ctx *ctx;
if (!dim)
return NULL;
- total = isl_dim_total(dim);
+ total = isl_space_dim(dim, isl_dim_all);
- ctx = isl_dim_get_ctx(dim);
+ ctx = isl_space_get_ctx(dim);
div = isl_mat_alloc(ctx, n_div, 1 + 1 + total + n_div);
return isl_local_space_alloc_div(dim, div);
}
-__isl_give isl_local_space *isl_local_space_from_dim(__isl_take isl_dim *dim)
+__isl_give isl_local_space *isl_local_space_from_space(__isl_take isl_space *dim)
{
return isl_local_space_alloc(dim, 0);
}
if (!ls)
return NULL;
- return isl_local_space_alloc_div(isl_dim_copy(ls->dim),
+ return isl_local_space_alloc_div(isl_space_copy(ls->dim),
isl_mat_copy(ls->div));
}
if (--ls->ref > 0)
return NULL;
- isl_dim_free(ls->dim);
+ isl_space_free(ls->dim);
isl_mat_free(ls->div);
free(ls);
return NULL;
}
+/* Is the local space that of a set?
+ */
+int isl_local_space_is_set(__isl_keep isl_local_space *ls)
+{
+ return ls ? isl_space_is_set(ls->dim) : -1;
+}
+
/* Return true if the two local spaces are identical, with identical
* expressions for the integer divisions.
*/
if (!ls1 || !ls2)
return -1;
- equal = isl_dim_equal(ls1->dim, ls2->dim);
+ equal = isl_space_is_equal(ls1->dim, ls2->dim);
if (equal < 0 || !equal)
return equal;
if (type == isl_dim_div)
return ls->div->n_row;
if (type == isl_dim_all)
- return isl_dim_size(ls->dim, isl_dim_all) + ls->div->n_row;
- return isl_dim_size(ls->dim, type);
+ return isl_space_dim(ls->dim, isl_dim_all) + ls->div->n_row;
+ return isl_space_dim(ls->dim, type);
}
unsigned isl_local_space_offset(__isl_keep isl_local_space *ls,
enum isl_dim_type type)
{
- isl_dim *dim;
+ isl_space *dim;
if (!ls)
return 0;
const char *isl_local_space_get_dim_name(__isl_keep isl_local_space *ls,
enum isl_dim_type type, unsigned pos)
{
- return ls ? isl_dim_get_name(ls->dim, type, pos) : NULL;
+ return ls ? isl_space_get_dim_name(ls->dim, type, pos) : NULL;
}
-__isl_give isl_div *isl_local_space_get_div(__isl_keep isl_local_space *ls,
+__isl_give isl_aff *isl_local_space_get_div(__isl_keep isl_local_space *ls,
int pos)
{
- isl_basic_map *bmap;
+ isl_aff *aff;
if (!ls)
return NULL;
isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
"expression of div unknown", return NULL);
- bmap = isl_basic_map_from_local_space(isl_local_space_copy(ls));
- return isl_basic_map_div(bmap, pos);
+ aff = isl_aff_alloc(isl_local_space_copy(ls));
+ if (!aff)
+ return NULL;
+ isl_seq_cpy(aff->v->el, ls->div->row[pos], aff->v->size);
+ return aff;
}
-__isl_give isl_dim *isl_local_space_get_dim(__isl_keep isl_local_space *ls)
+__isl_give isl_space *isl_local_space_get_space(__isl_keep isl_local_space *ls)
{
if (!ls)
return NULL;
- return isl_dim_copy(ls->dim);
+ return isl_space_copy(ls->dim);
}
__isl_give isl_local_space *isl_local_space_set_dim_name(
ls = isl_local_space_cow(ls);
if (!ls)
return NULL;
- ls->dim = isl_dim_set_name(ls->dim, type, pos, s);
+ ls->dim = isl_space_set_dim_name(ls->dim, type, pos, s);
if (!ls->dim)
return isl_local_space_free(ls);
return ls;
}
+__isl_give isl_local_space *isl_local_space_reset_space(
+ __isl_take isl_local_space *ls, __isl_take isl_space *dim)
+{
+ ls = isl_local_space_cow(ls);
+ if (!ls || !dim)
+ goto error;
+
+ isl_space_free(ls->dim);
+ ls->dim = dim;
+
+ return ls;
+error:
+ isl_local_space_free(ls);
+ isl_space_free(dim);
+ return NULL;
+}
+
+/* Reorder the columns of the given div definitions according to the
+ * given reordering.
+ * The order of the divs themselves is assumed not to change.
+ */
+static __isl_give isl_mat *reorder_divs(__isl_take isl_mat *div,
+ __isl_take isl_reordering *r)
+{
+ int i, j;
+ isl_mat *mat;
+ int extra;
+
+ if (!div || !r)
+ goto error;
+
+ extra = isl_space_dim(r->dim, isl_dim_all) + div->n_row - r->len;
+ mat = isl_mat_alloc(div->ctx, div->n_row, div->n_col + extra);
+ if (!mat)
+ goto error;
+
+ for (i = 0; i < div->n_row; ++i) {
+ isl_seq_cpy(mat->row[i], div->row[i], 2);
+ isl_seq_clr(mat->row[i] + 2, mat->n_col - 2);
+ for (j = 0; j < r->len; ++j)
+ isl_int_set(mat->row[i][2 + r->pos[j]],
+ div->row[i][2 + j]);
+ }
+
+ isl_reordering_free(r);
+ isl_mat_free(div);
+ return mat;
+error:
+ isl_reordering_free(r);
+ isl_mat_free(div);
+ return NULL;
+}
+
+/* Reorder the dimensions of "ls" according to the given reordering.
+ * The reordering r is assumed to have been extended with the local
+ * variables, leaving them in the same order.
+ */
+__isl_give isl_local_space *isl_local_space_realign(
+ __isl_take isl_local_space *ls, __isl_take isl_reordering *r)
+{
+ ls = isl_local_space_cow(ls);
+ if (!ls || !r)
+ goto error;
+
+ ls->div = reorder_divs(ls->div, isl_reordering_copy(r));
+ if (!ls->div)
+ goto error;
+
+ ls = isl_local_space_reset_space(ls, isl_space_copy(r->dim));
+
+ isl_reordering_free(r);
+ return ls;
+error:
+ isl_local_space_free(ls);
+ isl_reordering_free(r);
+ return NULL;
+}
+
__isl_give isl_local_space *isl_local_space_add_div(
__isl_take isl_local_space *ls, __isl_take isl_vec *div)
{
return 1;
}
+__isl_give isl_local_space *isl_local_space_domain(
+ __isl_take isl_local_space *ls)
+{
+ ls = isl_local_space_drop_dims(ls, isl_dim_out,
+ 0, isl_local_space_dim(ls, isl_dim_out));
+ ls = isl_local_space_cow(ls);
+ if (!ls)
+ return NULL;
+ ls->dim = isl_space_domain(ls->dim);
+ if (!ls->dim)
+ return isl_local_space_free(ls);
+ return ls;
+}
+
/* Construct a local space for a map that has the given local
* space as domain and that has a zero-dimensional range.
*/
ls = isl_local_space_cow(ls);
if (!ls)
return NULL;
- ls->dim = isl_dim_from_domain(ls->dim);
+ ls->dim = isl_space_from_domain(ls->dim);
if (!ls->dim)
return isl_local_space_free(ls);
return ls;
if (!ls || !eq)
goto error;
- total = isl_dim_total(eq->dim);
+ total = isl_space_dim(eq->dim, isl_dim_all);
if (isl_local_space_dim(ls, isl_dim_all) != total)
isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
"dimensions don't match", goto error);
{
if (!ls)
return -1;
- return isl_dim_is_named_or_nested(ls->dim, type);
+ return isl_space_is_named_or_nested(ls->dim, type);
}
__isl_give isl_local_space *isl_local_space_drop_dims(
if (type == isl_dim_div) {
ls->div = isl_mat_drop_rows(ls->div, first, n);
} else {
- ls->dim = isl_dim_drop(ls->dim, type, first, n);
+ ls->dim = isl_space_drop_dims(ls->dim, type, first, n);
if (!ls->dim)
return isl_local_space_free(ls);
}
if (type == isl_dim_div) {
ls->div = isl_mat_insert_zero_rows(ls->div, first, n);
} else {
- ls->dim = isl_dim_insert(ls->dim, type, first, n);
+ ls->dim = isl_space_insert_dims(ls->dim, type, first, n);
if (!ls->dim)
return isl_local_space_free(ls);
}
return ls;
}
+
+/* Check if the constraints pointed to by "constraint" is a div
+ * constraint corresponding to div "div" in "ls".
+ *
+ * That is, if div = floor(f/m), then check if the constraint is
+ *
+ * f - m d >= 0
+ * or
+ * -(f-(m-1)) + m d >= 0
+ */
+int isl_local_space_is_div_constraint(__isl_keep isl_local_space *ls,
+ isl_int *constraint, unsigned div)
+{
+ unsigned pos;
+
+ if (!ls)
+ return -1;
+
+ if (isl_int_is_zero(ls->div->row[div][0]))
+ return 0;
+
+ pos = isl_local_space_offset(ls, isl_dim_div) + div;
+
+ if (isl_int_eq(constraint[pos], ls->div->row[div][0])) {
+ int neg;
+ isl_int_sub(ls->div->row[div][1],
+ ls->div->row[div][1], ls->div->row[div][0]);
+ isl_int_add_ui(ls->div->row[div][1], ls->div->row[div][1], 1);
+ neg = isl_seq_is_neg(constraint, ls->div->row[div]+1, pos);
+ isl_int_sub_ui(ls->div->row[div][1], ls->div->row[div][1], 1);
+ isl_int_add(ls->div->row[div][1],
+ ls->div->row[div][1], ls->div->row[div][0]);
+ if (!neg)
+ return 0;
+ if (isl_seq_first_non_zero(constraint+pos+1,
+ ls->div->n_row-div-1) != -1)
+ return 0;
+ } else if (isl_int_abs_eq(constraint[pos], ls->div->row[div][0])) {
+ if (!isl_seq_eq(constraint, ls->div->row[div]+1, pos))
+ return 0;
+ if (isl_seq_first_non_zero(constraint+pos+1,
+ ls->div->n_row-div-1) != -1)
+ return 0;
+ } else
+ return 0;
+
+ return 1;
+}
+
+/*
+ * Set active[i] to 1 if the dimension at position i is involved
+ * in the linear expression l.
+ */
+int *isl_local_space_get_active(__isl_keep isl_local_space *ls, isl_int *l)
+{
+ int i, j;
+ isl_ctx *ctx;
+ int *active = NULL;
+ unsigned total;
+ unsigned offset;
+
+ ctx = isl_local_space_get_ctx(ls);
+ total = isl_local_space_dim(ls, isl_dim_all);
+ active = isl_calloc_array(ctx, int, total);
+ if (!active)
+ return NULL;
+
+ for (i = 0; i < total; ++i)
+ active[i] = !isl_int_is_zero(l[i]);
+
+ offset = isl_local_space_offset(ls, isl_dim_div) - 1;
+ for (i = ls->div->n_row - 1; i >= 0; --i) {
+ if (!active[offset + i])
+ continue;
+ for (j = 0; j < total; ++j)
+ active[j] |= !isl_int_is_zero(ls->div->row[i][2 + j]);
+ }
+
+ return active;
+}
projects / platform / upstream / isl.git / blobdiff