ppcg.h

   1 #ifndef PPCG_H
   2 #define PPCG_H
   3
   4 #include <isl/set.h>
   5 #include <isl/union_set.h>
   6 #include <isl/union_map.h>
   7 #include <pet.h>
   8
   9 #include "ppcg_options.h"
  10
  11 int ppcg_extract_base_name(char *name, const char *input);
  12
  13 /* Representation of the scop for use inside PPCG.
  14  *
  15  * "options" are the options specified by the user.
  16  * Some fields in this structure may depend on some of the options.
  17  *
  18  * "start" and "end" are file offsets of the corresponding program text.
  19  * "context" represents constraints on the parameters.
  20  * "domain" is the union of all iteration domains.
  21  * "call" contains the iteration domains of statements with a call expression.
  22  * "reads" contains all potential read accesses.
  23  * "tagged_reads" is the same as "reads", except that the domain is a wrapped
  24  *      relation mapping an iteration domain to a reference identifier
  25  * "live_in" contains the potential read accesses that potentially
  26  *      have no corresponding writes in the scop.
  27  * "may_writes" contains all potential write accesses.
  28  * "tagged_may_writes" is the same as "may_writes", except that the domain
  29  *      is a wrapped relation mapping an iteration domain
  30  *      to a reference identifier
  31  * "must_writes" contains all definite write accesses.
  32  * "tagged_must_writes" is the same as "must_writes", except that the domain
  33  *      is a wrapped relation mapping an iteration domain
  34  *      to a reference identifier
  35  * "live_out" contains the potential write accesses that are potentially
  36  *      not killed by any kills or any other writes.
  37  * "tagged_must_kills" contains all definite kill accesses with
  38  *      a reference identifier in the domain.
  39  *
  40  * "tagger" maps iteration domains to the corresponding tagged
  41  *      iteration domain.
  42  *
  43  * "dep_flow" represents the potential flow dependences.
  44  * "tagged_dep_flow" is the same as "dep_flow", except that both domain and
  45  *      range are wrapped relations mapping an iteration domain to
  46  *      a reference identifier.  May be NULL if not computed.
  47  * "dep_false" represents the potential false (anti and output) dependences.
  48  * "dep_external" represents the constraints that ensure that all live-in
  49  *      accesses remain live-in and that all live-out accesses remain live-out.
  50  * "dep_order"/"tagged_dep_order" represents the order dependences between
  51  *      the live range intervals in "dep_flow"/"tagged_dep_flow".
  52  *      It is only used if the live_range_reordering
  53  *      option is set.  Otherwise it is NULL.
  54  *      If "dep_order" is used, then "dep_false" only contains a limited
  55  *      set of anti and output dependences.
  56  * "schedule" represents the (original) schedule.
  57  *
  58  * "types", "arrays" and "stmts" are copies of the corresponding elements
  59  * of the original pet_scop.
  60  */
  61 struct ppcg_scop {
  62         struct ppcg_options *options;
  63
  64         unsigned start;
  65         unsigned end;
  66
  67         isl_set *context;
  68         isl_union_set *domain;
  69         isl_union_set *call;
  70         isl_union_map *tagged_reads;
  71         isl_union_map *reads;
  72         isl_union_map *live_in;
  73         isl_union_map *tagged_may_writes;
  74         isl_union_map *may_writes;
  75         isl_union_map *tagged_must_writes;
  76         isl_union_map *must_writes;
  77         isl_union_map *live_out;
  78         isl_union_map *tagged_must_kills;
  79
  80         isl_union_map *tagger;
  81
  82         isl_union_map *dep_flow;
  83         isl_union_map *tagged_dep_flow;
  84         isl_union_map *dep_false;
  85         isl_union_map *dep_external;
  86         isl_union_map *dep_order;
  87         isl_union_map *tagged_dep_order;
  88         isl_union_map *schedule;
  89
  90         int n_type;
  91         struct pet_type **types;
  92         int n_array;
  93         struct pet_array **arrays;
  94         int n_stmt;
  95         struct pet_stmt **stmts;
  96 };
  97
  98 int ppcg_transform(isl_ctx *ctx, const char *input, FILE *out,
  99         struct ppcg_options *options,
 100         __isl_give isl_printer *(*fn)(__isl_take isl_printer *p,
 101                 struct ppcg_scop *scop, void *user), void *user);
 102
 103 #endif