1#ifndef ISL_REORDERING_H
2#define ISL_REORDERING_H
3
4#include <isl/space.h>
5
6/* pos maps original dimensions to new dimensions.
7 * The final dimension is given by dim.
8 * The number of dimensions (i.e., the range of values) in the result
9 * may be larger than the number of dimensions in the input.
10 * In particular, the possible values of the entries in pos ranges from 0 to
11 * the total dimension of dim - 1, unless isl_reordering_extend
12 * has been called.
13 */
14struct isl_reordering {
15	int ref;
16	isl_space *dim;
17	unsigned len;
18	int pos[1];
19};
20typedef struct isl_reordering isl_reordering;
21
22__isl_give isl_reordering *isl_parameter_alignment_reordering(
23	__isl_keep isl_space *alignee, __isl_keep isl_space *aligner);
24__isl_give isl_reordering *isl_reordering_copy(__isl_keep isl_reordering *exp);
25void *isl_reordering_free(__isl_take isl_reordering *exp);
26__isl_give isl_reordering *isl_reordering_extend_space(
27	__isl_take isl_reordering *exp, __isl_take isl_space *dim);
28__isl_give isl_reordering *isl_reordering_extend(__isl_take isl_reordering *exp,
29	unsigned extra);
30
31#endif
32