schedule.h

   1 #ifndef _SCHEDULE_H
   2 #define _SCHEDULE_H
   3
   4 /* An access to an 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  */
   8 struct gpu_stmt_access {
   9         /* Access reads elements */
  10         int read;
  11         /* Access writes elements */
  12         int write;
  13         /* All writes are definite writes. */
  14         int exact_write;
  15
  16         /* Index of the array reference group this reference belong to.
  17          * -1 if no reference groups have been computed for the array.
  18          */
  19         int group;
  20
  21         /* May access relation */
  22         isl_map *access;
  23         /* May access relation with as domain a mapping from iteration domain
  24          * to a reference identifier.
  25          */
  26         isl_map *tagged_access;
  27         /* The reference id of the corresponding pet_expr. */
  28         isl_id *ref_id;
  29
  30         struct gpu_stmt_access *next;
  31 };
  32
  33 struct gpu_stmt {
  34         isl_id *id;
  35         struct pet_stmt *stmt;
  36
  37         /* Number of tile dimensions. */
  38         int tile_len;
  39         /* Number of initial parallel loops among tile dimensions. */
  40         int n_parallel;
  41
  42         /* Linked list of accesses. */
  43         struct gpu_stmt_access *accesses;
  44 };
  45
  46 __isl_give isl_map *project_out(__isl_take isl_space *dim,
  47         int len, int first, int n);
  48 __isl_give isl_map *projection(__isl_take isl_space *dim,
  49         int src_len, int dst_len);
  50 __isl_give isl_set *extend(__isl_take isl_set *set, int dst_len);
  51 __isl_give isl_union_map *align_range(__isl_take isl_union_map *umap);
  52
  53 #endif