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      1 #ifndef ISL_REORDERING_H
      2 #define ISL_REORDERING_H
      3 
      4 #include <isl/space.h>
      5 
      6 /* "pos" has "src_len" entries and maps original dimensions to new dimensions.
      7  * The final space is given by "space".
      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  * to "dst_len" - 1, where "dst_len" is equal to the total dimension of "space",
     12  * unless isl_reordering_extend has been called.
     13  */
     14 struct isl_reordering {
     15 	int ref;
     16 	isl_space *space;
     17 	unsigned src_len;
     18 	unsigned dst_len;
     19 	int pos[1];
     20 };
     21 typedef struct isl_reordering isl_reordering;
     22 
     23 isl_ctx *isl_reordering_get_ctx(__isl_keep isl_reordering *r);
     24 __isl_keep isl_space *isl_reordering_peek_space(__isl_keep isl_reordering *r);
     25 __isl_give isl_space *isl_reordering_get_space(__isl_keep isl_reordering *r);
     26 __isl_give isl_reordering *isl_parameter_alignment_reordering(
     27 	__isl_keep isl_space *alignee, __isl_keep isl_space *aligner);
     28 __isl_give isl_reordering *isl_reordering_unbind_params_insert_domain(
     29 	__isl_keep isl_space *space, __isl_keep isl_multi_id *tuple);
     30 __isl_give isl_reordering *isl_reordering_copy(__isl_keep isl_reordering *exp);
     31 __isl_null isl_reordering *isl_reordering_free(__isl_take isl_reordering *exp);
     32 __isl_give isl_reordering *isl_reordering_extend_space(
     33 	__isl_take isl_reordering *exp, __isl_take isl_space *space);
     34 __isl_give isl_reordering *isl_reordering_extend(__isl_take isl_reordering *exp,
     35 	unsigned extra);
     36 
     37 #endif
     38