include/isl/flow.h

   1 #ifndef ISL_FLOW_H
   2 #define ISL_FLOW_H
   3
   4 #include <isl/set_type.h>
   5 #include <isl/map_type.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_restriction;
  20 typedef struct isl_restriction isl_restriction;
  21
  22 void *isl_restriction_free(__isl_take isl_restriction *restr);
  23 __isl_give isl_restriction *isl_restriction_empty(
  24         __isl_keep isl_map *source_map);
  25 __isl_give isl_restriction *isl_restriction_none(
  26         __isl_keep isl_map *source_map);
  27 __isl_give isl_restriction *isl_restriction_input(
  28         __isl_take isl_set *source_restr, __isl_take isl_set *sink_restr);
  29 __isl_give isl_restriction *isl_restriction_output(
  30         __isl_take isl_set *source_restr);
  31
  32 typedef __isl_give isl_restriction *(*isl_access_restrict)(
  33         __isl_keep isl_map *source_map, __isl_keep isl_set *sink,
  34         void *source_user, void *user);
  35
  36 struct isl_access_info;
  37 typedef struct isl_access_info isl_access_info;
  38 struct isl_flow;
  39 typedef struct isl_flow isl_flow;
  40
  41 __isl_give isl_access_info *isl_access_info_alloc(__isl_take isl_map *sink,
  42         void *sink_user, isl_access_level_before fn, int max_source);
  43 __isl_give isl_access_info *isl_access_info_set_restrict(
  44         __isl_take isl_access_info *acc, isl_access_restrict fn, void *user);
  45 __isl_give isl_access_info *isl_access_info_add_source(
  46         __isl_take isl_access_info *acc, __isl_take isl_map *source,
  47         int must, void *source_user);
  48 void isl_access_info_free(__isl_take isl_access_info *acc);
  49
  50 isl_ctx *isl_access_info_get_ctx(__isl_keep isl_access_info *acc);
  51
  52 __isl_give isl_flow *isl_access_info_compute_flow(__isl_take isl_access_info *acc);
  53 int isl_flow_foreach(__isl_keep isl_flow *deps,
  54         int (*fn)(__isl_take isl_map *dep, int must, void *dep_user, void *user),
  55         void *user);
  56 __isl_give isl_map *isl_flow_get_no_source(__isl_keep isl_flow *deps, int must);
  57 void isl_flow_free(__isl_take isl_flow *deps);
  58
  59 isl_ctx *isl_flow_get_ctx(__isl_keep isl_flow *deps);
  60
  61 int isl_union_map_compute_flow(__isl_take isl_union_map *sink,
  62         __isl_take isl_union_map *must_source,
  63         __isl_take isl_union_map *may_source,
  64         __isl_take isl_union_map *schedule,
  65         __isl_give isl_union_map **must_dep, __isl_give isl_union_map **may_dep,
  66         __isl_give isl_union_map **must_no_source,
  67         __isl_give isl_union_map **may_no_source);
  68
  69 #if defined(__cplusplus)
  70 }
  71 #endif
  72
  73 #endif