schedule.h

   1 #ifndef _SCHEDULE_H
   2 #define _SCHEDULE_H
   3
   4 /* An access to an outer array element or an iterator.
   5  * Accesses to iterators have an access relation that maps to an unnamed space.
   6  * An access may be both read and write.
   7  * If the access relation is empty, then the output dimension may
   8  * not be equal to the dimension of the corresponding array.
   9  */
  10 struct gpu_stmt_access {
  11         /* Access reads elements */
  12         int read;
  13         /* Access writes elements */
  14         int write;
  15         /* All writes are definite writes. */
  16         int exact_write;
  17         /* The number of index expressions specified in the access. */
  18         int n_index;
  19
  20         /* Index of the array reference group this reference belong to.
  21          * -1 if no reference groups have been computed for the array.
  22          */
  23         int group;
  24
  25         /* May access relation */
  26         isl_map *access;
  27         /* May access relation with as domain a mapping from iteration domain
  28          * to a reference identifier.
  29          */
  30         isl_map *tagged_access;
  31         /* The reference id of the corresponding pet_expr. */
  32         isl_id *ref_id;
  33
  34         struct gpu_stmt_access *next;
  35 };
  36
  37 struct gpu_stmt {
  38         isl_id *id;
  39         struct pet_stmt *stmt;
  40
  41         /* Number of tile dimensions. */
  42         int tile_len;
  43         /* Number of initial parallel loops among tile dimensions. */
  44         int n_parallel;
  45
  46         /* Linked list of accesses. */
  47         struct gpu_stmt_access *accesses;
  48 };
  49
  50 __isl_give isl_map *project_out(__isl_take isl_space *dim,
  51         int len, int first, int n);
  52 __isl_give isl_map *projection(__isl_take isl_space *dim,
  53         int src_len, int dst_len);
  54 __isl_give isl_set *extend(__isl_take isl_set *set, int dst_len);
  55 __isl_give isl_union_map *align_range(__isl_take isl_union_map *umap);
  56
  57 #endif