/*
* 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
*/
#include <isl_ctx_private.h>
-#include <isl/dim.h>
+#include <isl_map_private.h>
+#include <isl/space.h>
#include <isl/seq.h>
#include <isl_mat_private.h>
-#include "isl_map_private.h"
-#include <isl_dim_private.h>
+#include <isl_space_private.h>
+#include <isl_val_private.h>
+
+isl_ctx *isl_mat_get_ctx(__isl_keep isl_mat *mat)
+{
+ return mat ? mat->ctx : NULL;
+}
struct isl_mat *isl_mat_alloc(struct isl_ctx *ctx,
unsigned n_row, unsigned n_col)
return NULL;
}
-struct isl_mat *isl_mat_sub_alloc(struct isl_ctx *ctx, isl_int **row,
+__isl_give isl_mat *isl_mat_sub_alloc6(isl_ctx *ctx, isl_int **row,
unsigned first_row, unsigned n_row, unsigned first_col, unsigned n_col)
{
int i;
return NULL;
}
+__isl_give isl_mat *isl_mat_sub_alloc(__isl_keep isl_mat *mat,
+ unsigned first_row, unsigned n_row, unsigned first_col, unsigned n_col)
+{
+ if (!mat)
+ return NULL;
+ return isl_mat_sub_alloc6(mat->ctx, mat->row, first_row, n_row,
+ first_col, n_col);
+}
+
void isl_mat_sub_copy(struct isl_ctx *ctx, isl_int **dst, isl_int **src,
unsigned n_row, unsigned dst_col, unsigned src_col, unsigned n_col)
{
return mat2;
}
-void isl_mat_free(struct isl_mat *mat)
+void *isl_mat_free(struct isl_mat *mat)
{
if (!mat)
- return;
+ return NULL;
if (--mat->ref > 0)
- return;
+ return NULL;
if (!ISL_F_ISSET(mat, ISL_MAT_BORROWED))
isl_blk_free(mat->ctx, mat->block);
isl_ctx_deref(mat->ctx);
free(mat->row);
free(mat);
+
+ return NULL;
}
int isl_mat_rows(__isl_keep isl_mat *mat)
return 0;
}
+/* Extract the element at row "row", oolumn "col" of "mat".
+ */
+__isl_give isl_val *isl_mat_get_element_val(__isl_keep isl_mat *mat,
+ int row, int col)
+{
+ isl_ctx *ctx;
+
+ if (!mat)
+ return NULL;
+ ctx = isl_mat_get_ctx(mat);
+ if (row < 0 || row >= mat->n_row)
+ isl_die(ctx, isl_error_invalid, "row out of range",
+ return NULL);
+ if (col < 0 || col >= mat->n_col)
+ isl_die(ctx, isl_error_invalid, "column out of range",
+ return NULL);
+ return isl_val_int_from_isl_int(ctx, mat->row[row][col]);
+}
+
__isl_give isl_mat *isl_mat_set_element(__isl_take isl_mat *mat,
int row, int col, isl_int v)
{
return NULL;
}
-struct isl_mat *isl_mat_identity(struct isl_ctx *ctx, unsigned n_row)
+/* Replace the element at row "row", column "col" of "mat" by "v".
+ */
+__isl_give isl_mat *isl_mat_set_element_val(__isl_take isl_mat *mat,
+ int row, int col, __isl_take isl_val *v)
+{
+ if (!v)
+ return isl_mat_free(mat);
+ if (!isl_val_is_int(v))
+ isl_die(isl_val_get_ctx(v), isl_error_invalid,
+ "expecting integer value", goto error);
+ mat = isl_mat_set_element(mat, row, col, v->n);
+ isl_val_free(v);
+ return mat;
+error:
+ isl_val_free(v);
+ return isl_mat_free(mat);
+}
+
+__isl_give isl_mat *isl_mat_diag(isl_ctx *ctx, unsigned n_row, isl_int d)
{
int i;
struct isl_mat *mat;
return NULL;
for (i = 0; i < n_row; ++i) {
isl_seq_clr(mat->row[i], i);
- isl_int_set_si(mat->row[i][i], 1);
+ isl_int_set(mat->row[i][i], d);
isl_seq_clr(mat->row[i]+i+1, n_row-(i+1));
}
return mat;
}
+__isl_give isl_mat *isl_mat_identity(isl_ctx *ctx, unsigned n_row)
+{
+ if (!ctx)
+ return NULL;
+ return isl_mat_diag(ctx, n_row, ctx->one);
+}
+
struct isl_vec *isl_mat_vec_product(struct isl_mat *mat, struct isl_vec *vec)
{
int i;
struct isl_mat *transpose = NULL;
int i, j;
+ if (!mat)
+ return NULL;
+
if (mat->n_col == mat->n_row) {
mat = isl_mat_cow(mat);
if (!mat)
return mat;
}
-struct isl_mat *isl_mat_product(struct isl_mat *left, struct isl_mat *right)
+__isl_give isl_mat *isl_mat_product(__isl_take isl_mat *left,
+ __isl_take isl_mat *right)
{
int i, j, k;
struct isl_mat *prod;
if (has_div)
for (i = 0; i < n; ++i)
isl_int_mul(q[i][0], q[i][0], mat->row[0][0]);
- t = isl_mat_sub_alloc(mat->ctx, q, 0, n, has_div, mat->n_row);
+ t = isl_mat_sub_alloc6(mat->ctx, q, 0, n, has_div, mat->n_row);
t = isl_mat_product(t, mat);
if (!t)
return -1;
if (!bset)
goto error;
} else if (mat->n_col < mat->n_row) {
- bset->dim = isl_dim_cow(bset->dim);
+ bset->dim = isl_space_cow(bset->dim);
if (!bset->dim)
goto error;
bset->dim->n_out -= mat->n_row - mat->n_col;
goto error;
}
if (mat->n_col != mat->n_row) {
- set->dim = isl_dim_cow(set->dim);
+ set->dim = isl_space_cow(set->dim);
if (!set->dim)
goto error;
set->dim->n_out += mat->n_col;
return NULL;
}
-void isl_mat_dump(struct isl_mat *mat, FILE *out, int indent)
+/* Replace the variables x starting at pos in the rows q
+ * by x' with x = M x' with M the matrix mat.
+ * That is, replace the corresponding coefficients c by c M.
+ */
+static int transform(isl_ctx *ctx, isl_int **q, unsigned n,
+ unsigned pos, __isl_take isl_mat *mat)
+{
+ int i;
+ isl_mat *t;
+
+ t = isl_mat_sub_alloc6(ctx, q, 0, n, pos, mat->n_row);
+ t = isl_mat_product(t, mat);
+ if (!t)
+ return -1;
+ for (i = 0; i < n; ++i)
+ isl_seq_swp_or_cpy(q[i] + pos, t->row[i], t->n_col);
+ isl_mat_free(t);
+ return 0;
+}
+
+/* Replace the variables x of type "type" starting at "first" in "bset"
+ * by x' with x = M x' with M the matrix trans.
+ * That is, replace the corresponding coefficients c by c M.
+ *
+ * The transformation matrix should be a square matrix.
+ */
+__isl_give isl_basic_set *isl_basic_set_transform_dims(
+ __isl_take isl_basic_set *bset, enum isl_dim_type type, unsigned first,
+ __isl_take isl_mat *trans)
+{
+ isl_ctx *ctx;
+ unsigned pos;
+
+ bset = isl_basic_set_cow(bset);
+ if (!bset || !trans)
+ goto error;
+
+ ctx = isl_basic_set_get_ctx(bset);
+ if (trans->n_row != trans->n_col)
+ isl_die(trans->ctx, isl_error_invalid,
+ "expecting square transformation matrix", goto error);
+ if (first + trans->n_row > isl_basic_set_dim(bset, type))
+ isl_die(trans->ctx, isl_error_invalid,
+ "oversized transformation matrix", goto error);
+
+ pos = isl_basic_set_offset(bset, type) + first;
+
+ if (transform(ctx, bset->eq, bset->n_eq, pos, isl_mat_copy(trans)) < 0)
+ goto error;
+ if (transform(ctx, bset->ineq, bset->n_ineq, pos,
+ isl_mat_copy(trans)) < 0)
+ goto error;
+ if (transform(ctx, bset->div, bset->n_div, 1 + pos,
+ isl_mat_copy(trans)) < 0)
+ goto error;
+
+ ISL_F_CLR(bset, ISL_BASIC_SET_NORMALIZED);
+ ISL_F_CLR(bset, ISL_BASIC_SET_NORMALIZED_DIVS);
+
+ isl_mat_free(trans);
+ return bset;
+error:
+ isl_mat_free(trans);
+ isl_basic_set_free(bset);
+ return NULL;
+}
+
+void isl_mat_print_internal(__isl_keep isl_mat *mat, FILE *out, int indent)
{
int i, j;
}
}
+void isl_mat_dump(__isl_keep isl_mat *mat)
+{
+ isl_mat_print_internal(mat, stderr, 0);
+}
+
struct isl_mat *isl_mat_drop_cols(struct isl_mat *mat, unsigned col, unsigned n)
{
int r;
+ if (n == 0)
+ return mat;
+
mat = isl_mat_cow(mat);
if (!mat)
return NULL;
return isl_mat_insert_rows(mat, mat->n_row, n);
}
+__isl_give isl_mat *isl_mat_insert_zero_rows(__isl_take isl_mat *mat,
+ unsigned row, unsigned n)
+{
+ int i;
+
+ mat = isl_mat_insert_rows(mat, row, n);
+ if (!mat)
+ return NULL;
+
+ for (i = 0; i < n; ++i)
+ isl_seq_clr(mat->row[row + i], mat->n_col);
+
+ return mat;
+}
+
+__isl_give isl_mat *isl_mat_add_zero_rows(__isl_take isl_mat *mat, unsigned n)
+{
+ if (!mat)
+ return NULL;
+
+ return isl_mat_insert_zero_rows(mat, mat->n_row, n);
+}
+
void isl_mat_col_submul(struct isl_mat *mat,
int dst_col, isl_int f, int src_col)
{
{
int i;
+ if (isl_int_is_one(m))
+ return mat;
+
+ mat = isl_mat_cow(mat);
if (!mat)
return NULL;
return mat;
}
+__isl_give isl_mat *isl_mat_scale_down_row(__isl_take isl_mat *mat, int row,
+ isl_int m)
+{
+ if (isl_int_is_one(m))
+ return mat;
+
+ mat = isl_mat_cow(mat);
+ if (!mat)
+ return NULL;
+
+ isl_seq_scale_down(mat->row[row], mat->row[row], m, mat->n_col);
+
+ return mat;
+}
+
__isl_give isl_mat *isl_mat_normalize(__isl_take isl_mat *mat)
{
isl_int gcd;
return mat;
}
+__isl_give isl_mat *isl_mat_normalize_row(__isl_take isl_mat *mat, int row)
+{
+ mat = isl_mat_cow(mat);
+ if (!mat)
+ return NULL;
+
+ isl_seq_normalize(mat->ctx, mat->row[row], mat->n_col);
+
+ return mat;
+}
+
/* Number of initial non-zero columns.
*/
int isl_mat_initial_non_zero_cols(__isl_keep isl_mat *mat)
projects / platform / upstream / isl.git / blobdiff