include/isl/flow.h

   1 #ifndef ISL_FLOW_H
   2 #define ISL_FLOW_H
   3
   4 #include <isl/set.h>
   5 #include <isl/map.h>
   6 #include <isl/union_set.h>
   7 #include <isl/union_map.h>
   8
   9 #if defined(__cplusplus)
  10 extern "C" {
  11 #endif
  12
  13 /* Let n (>= 0) be the number of iterators shared by first and second.
  14  * If first precedes second textually return 2 * n + 1,
  15  * otherwise return 2 * n.
  16  */
  17 typedef int (*isl_access_level_before)(void *first, void *second);
  18
  19 struct isl_access_info;
  20 typedef struct isl_access_info isl_access_info;
  21 struct isl_flow;
  22 typedef struct isl_flow isl_flow;
  23
  24 __isl_give isl_access_info *isl_access_info_alloc(__isl_take isl_map *sink,
  25         void *sink_user, isl_access_level_before fn, int max_source);
  26 __isl_give isl_access_info *isl_access_info_add_source(
  27         __isl_take isl_access_info *acc, __isl_take isl_map *source,
  28         int must, void *source_user);
  29 void isl_access_info_free(__isl_take isl_access_info *acc);
  30 __isl_give isl_flow *isl_access_info_compute_flow(__isl_take isl_access_info *acc);
  31 int isl_flow_foreach(__isl_keep isl_flow *deps,
  32         int (*fn)(__isl_take isl_map *dep, int must, void *dep_user, void *user),
  33         void *user);
  34 __isl_give isl_map *isl_flow_get_no_source(__isl_keep isl_flow *deps, int must);
  35 void isl_flow_free(__isl_take isl_flow *deps);
  36
  37 int isl_union_map_compute_flow(__isl_take isl_union_map *sink,
  38         __isl_take isl_union_map *must_source,
  39         __isl_take isl_union_map *may_source,
  40         __isl_take isl_union_map *schedule,
  41         __isl_give isl_union_map **must_dep, __isl_give isl_union_map **may_dep,
  42         __isl_give isl_union_map **must_no_source,
  43         __isl_give isl_union_map **may_no_source);
  44
  45 #if defined(__cplusplus)
  46 }
  47 #endif
  48
  49 #endif