include/isl_map.h

   1 #ifndef ISL_MAP_H
   2 #define ISL_MAP_H
   3
   4 #include <stdio.h>
   5
   6 #include <isl_int.h>
   7 #include <isl_ctx.h>
   8 #include <isl_blk.h>
   9 #include <isl_dim.h>
  10
  11 #if defined(__cplusplus)
  12 extern "C" {
  13 #endif
  14
  15 /* General notes:
  16  *
  17  * All structures are reference counted to allow reuse without duplication.
  18  * A *_copy operation will increase the reference count, while a *_free
  19  * operation will decrease the reference count and only actually release
  20  * the structures when the reference count drops to zero.
  21  *
  22  * Functions that return an isa structure will in general _destroy_
  23  * all argument isa structures (the obvious execption begin the _copy
  24  * functions).  A pointer passed to such a function may therefore
  25  * never be used after the function call.  If you want to keep a
  26  * reference to the old structure(s), use the appropriate _copy function.
  27  */
  28
  29 /* A "basic map" is a relation between two sets of variables,
  30  * called the "in" and "out" variables.
  31  *
  32  * It is implemented as a set with two extra fields:
  33  * n_in is the number of in variables
  34  * n_out is the number of out variables
  35  * n_in + n_out should be equal to set.dim
  36  */
  37 struct isl_vec;
  38 struct isl_dim;
  39 struct isl_basic_map {
  40         int ref;
  41 #define ISL_BASIC_MAP_FINAL             (1 << 0)
  42 #define ISL_BASIC_MAP_EMPTY             (1 << 1)
  43 #define ISL_BASIC_MAP_NO_IMPLICIT       (1 << 2)
  44 #define ISL_BASIC_MAP_NO_REDUNDANT      (1 << 3)
  45 #define ISL_BASIC_MAP_RATIONAL          (1 << 4)
  46 #define ISL_BASIC_MAP_NORMALIZED        (1 << 5)
  47 #define ISL_BASIC_MAP_NORMALIZED_DIVS   (1 << 6)
  48 #define ISL_BASIC_MAP_ALL_EQUALITIES    (1 << 7)
  49         unsigned flags;
  50
  51         struct isl_ctx *ctx;
  52
  53         struct isl_dim *dim;
  54         unsigned extra;
  55
  56         unsigned n_eq;
  57         unsigned n_ineq;
  58
  59         size_t c_size;
  60         isl_int **eq;
  61         isl_int **ineq;
  62
  63         unsigned n_div;
  64
  65         isl_int **div;
  66
  67         struct isl_vec *sample;
  68
  69         struct isl_blk block;
  70         struct isl_blk block2;
  71 };
  72 struct isl_basic_set;
  73
  74 /* A "map" is a (disjoint) union of basic maps.
  75  *
  76  * Currently, the isl_set structure is identical to the isl_map structure
  77  * and the library depends on this correspondence internally.
  78  * However, users should not depend on this correspondence.
  79  */
  80 struct isl_map {
  81         int ref;
  82 #define ISL_MAP_DISJOINT                (1 << 0)
  83 #define ISL_MAP_NORMALIZED              (1 << 1)
  84         unsigned flags;
  85
  86         struct isl_ctx *ctx;
  87
  88         struct isl_dim *dim;
  89
  90         int n;
  91
  92         size_t size;
  93         struct isl_basic_map *p[0];
  94 };
  95 struct isl_set;
  96
  97 unsigned isl_basic_map_n_in(const struct isl_basic_map *bmap);
  98 unsigned isl_basic_map_n_out(const struct isl_basic_map *bmap);
  99 unsigned isl_basic_map_n_param(const struct isl_basic_map *bmap);
 100 unsigned isl_basic_map_n_div(const struct isl_basic_map *bmap);
 101 unsigned isl_basic_map_total_dim(const struct isl_basic_map *bmap);
 102 unsigned isl_basic_map_dim(const struct isl_basic_map *bmap,
 103                                 enum isl_dim_type type);
 104
 105 unsigned isl_map_n_in(const struct isl_map *map);
 106 unsigned isl_map_n_out(const struct isl_map *map);
 107 unsigned isl_map_n_param(const struct isl_map *map);
 108
 109 struct isl_basic_map *isl_basic_map_alloc(struct isl_ctx *ctx,
 110                 unsigned nparam, unsigned in, unsigned out, unsigned extra,
 111                 unsigned n_eq, unsigned n_ineq);
 112 struct isl_basic_map *isl_basic_map_identity(struct isl_dim *set_dim);
 113 struct isl_basic_map *isl_basic_map_identity_like(struct isl_basic_map *model);
 114 struct isl_basic_map *isl_basic_map_finalize(struct isl_basic_map *bmap);
 115 void isl_basic_map_free(struct isl_basic_map *bmap);
 116 struct isl_basic_map *isl_basic_map_copy(struct isl_basic_map *bmap);
 117 struct isl_basic_map *isl_basic_map_extend(struct isl_basic_map *base,
 118                 unsigned nparam, unsigned n_in, unsigned n_out, unsigned extra,
 119                 unsigned n_eq, unsigned n_ineq);
 120 struct isl_basic_map *isl_basic_map_extend_constraints(
 121                 struct isl_basic_map *base, unsigned n_eq, unsigned n_ineq);
 122 struct isl_basic_map *isl_basic_map_equal(
 123                 struct isl_dim *dim, unsigned n_equal);
 124 struct isl_basic_map *isl_basic_map_less_at(struct isl_dim *dim, unsigned pos);
 125 struct isl_basic_map *isl_basic_map_more_at(struct isl_dim *dim, unsigned pos);
 126 struct isl_basic_map *isl_basic_map_empty(struct isl_ctx *ctx,
 127                 unsigned nparam, unsigned in, unsigned out);
 128 struct isl_basic_map *isl_basic_map_empty_like(struct isl_basic_map *model);
 129 struct isl_basic_map *isl_basic_map_empty_like_map(struct isl_map *model);
 130 struct isl_basic_map *isl_basic_map_universe(struct isl_dim *dim);
 131 struct isl_basic_map *isl_basic_map_convex_hull(struct isl_basic_map *bmap);
 132
 133 struct isl_basic_map *isl_basic_map_intersect_domain(
 134                 struct isl_basic_map *bmap,
 135                 struct isl_basic_set *bset);
 136 struct isl_basic_map *isl_basic_map_intersect_range(
 137                 struct isl_basic_map *bmap,
 138                 struct isl_basic_set *bset);
 139 struct isl_basic_map *isl_basic_map_intersect(
 140                 struct isl_basic_map *bmap1,
 141                 struct isl_basic_map *bmap2);
 142 struct isl_map *isl_basic_map_union(
 143                 struct isl_basic_map *bmap1,
 144                 struct isl_basic_map *bmap2);
 145 struct isl_basic_map *isl_basic_map_apply_domain(
 146                 struct isl_basic_map *bmap1,
 147                 struct isl_basic_map *bmap2);
 148 struct isl_basic_map *isl_basic_map_apply_range(
 149                 struct isl_basic_map *bmap1,
 150                 struct isl_basic_map *bmap2);
 151 struct isl_basic_map *isl_basic_map_reverse(struct isl_basic_map *bmap);
 152 struct isl_basic_set *isl_basic_map_domain(struct isl_basic_map *bmap);
 153 struct isl_basic_set *isl_basic_map_range(struct isl_basic_map *bmap);
 154 struct isl_basic_map *isl_basic_map_remove(struct isl_basic_map *bmap,
 155         enum isl_dim_type type, unsigned first, unsigned n);
 156 struct isl_basic_map *isl_basic_map_from_basic_set(struct isl_basic_set *bset,
 157                 struct isl_dim *dim);
 158 struct isl_basic_set *isl_basic_set_from_basic_map(struct isl_basic_map *bmap);
 159 struct isl_basic_map *isl_basic_map_simplify(struct isl_basic_map *bmap);
 160 struct isl_basic_map *isl_basic_map_detect_equalities(
 161                                                 struct isl_basic_map *bmap);
 162 #define ISL_FORMAT_POLYLIB      1
 163 #define ISL_FORMAT_OMEGA        2
 164 struct isl_basic_map *isl_basic_map_read_from_file(struct isl_ctx *ctx,
 165                 FILE *input, unsigned nparam, unsigned input_format);
 166 struct isl_basic_map *isl_basic_map_fix_si(struct isl_basic_map *bmap,
 167                 enum isl_dim_type type, unsigned pos, int value);
 168
 169 struct isl_basic_map *isl_basic_map_sum(
 170                 struct isl_basic_map *bmap1, struct isl_basic_map *bmap2);
 171 struct isl_basic_map *isl_basic_map_neg(struct isl_basic_map *bmap);
 172 struct isl_basic_map *isl_basic_map_floordiv(struct isl_basic_map *bmap,
 173                 isl_int d);
 174
 175 int isl_basic_map_is_equal(
 176                 struct isl_basic_map *bmap1, struct isl_basic_map *bmap2);
 177
 178 struct isl_map *isl_basic_map_lexmax(
 179                 struct isl_basic_map *bmap, struct isl_basic_set *dom,
 180                 struct isl_set **empty);
 181 struct isl_map *isl_basic_map_lexmin(
 182                 struct isl_basic_map *bmap, struct isl_basic_set *dom,
 183                 struct isl_set **empty);
 184
 185 void isl_basic_map_dump(struct isl_basic_map *bmap, FILE *out, int indent);
 186
 187 struct isl_basic_map *isl_map_copy_basic_map(struct isl_map *map);
 188 struct isl_map *isl_map_drop_basic_map(struct isl_map *map,
 189                                                 struct isl_basic_map *bmap);
 190
 191 int isl_basic_map_fast_is_fixed(struct isl_basic_map *bmap,
 192         enum isl_dim_type type, unsigned pos, isl_int *val);
 193
 194 int isl_basic_map_is_universe(struct isl_basic_map *bmap);
 195 int isl_basic_map_fast_is_empty(struct isl_basic_map *bmap);
 196 int isl_basic_map_is_empty(struct isl_basic_map *bmap);
 197 int isl_basic_map_is_subset(struct isl_basic_map *bmap1,
 198                 struct isl_basic_map *bmap2);
 199 int isl_basic_map_is_strict_subset(struct isl_basic_map *bmap1,
 200                 struct isl_basic_map *bmap2);
 201
 202 struct isl_map *isl_map_alloc(struct isl_ctx *ctx,
 203                 unsigned nparam, unsigned in, unsigned out, int n,
 204                 unsigned flags);
 205 struct isl_map *isl_map_universe(struct isl_dim *dim);
 206 struct isl_map *isl_map_empty(struct isl_dim *dim);
 207 struct isl_map *isl_map_empty_like(struct isl_map *model);
 208 struct isl_map *isl_map_empty_like_basic_map(struct isl_basic_map *model);
 209 struct isl_map *isl_map_dup(struct isl_map *map);
 210 struct isl_map *isl_map_add(struct isl_map *map, struct isl_basic_map *bmap);
 211 struct isl_map *isl_map_identity(struct isl_dim *set_dim);
 212 struct isl_map *isl_map_identity_like(struct isl_basic_map *model);
 213 struct isl_map *isl_map_finalize(struct isl_map *map);
 214 void isl_map_free(struct isl_map *map);
 215 struct isl_map *isl_map_copy(struct isl_map *map);
 216 struct isl_map *isl_map_extend(struct isl_map *base,
 217                 unsigned nparam, unsigned n_in, unsigned n_out);
 218 struct isl_map *isl_map_reverse(struct isl_map *map);
 219 struct isl_map *isl_map_union(struct isl_map *map1, struct isl_map *map2);
 220 struct isl_map *isl_map_union_disjoint(
 221                         struct isl_map *map1, struct isl_map *map2);
 222 struct isl_map *isl_map_intersect_domain(
 223                 struct isl_map *map,
 224                 struct isl_set *set);
 225 struct isl_map *isl_map_intersect_range(
 226                 struct isl_map *map,
 227                 struct isl_set *set);
 228 struct isl_map *isl_map_apply_domain(
 229                 struct isl_map *map1,
 230                 struct isl_map *map2);
 231 struct isl_map *isl_map_apply_range(
 232                 struct isl_map *map1,
 233                 struct isl_map *map2);
 234 struct isl_map *isl_map_product(struct isl_map *map1, struct isl_map *map2);
 235 struct isl_map *isl_map_intersect(struct isl_map *map1, struct isl_map *map2);
 236 struct isl_map *isl_map_subtract(struct isl_map *map1, struct isl_map *map2);
 237 struct isl_map *isl_map_fix_input_si(struct isl_map *map,
 238                 unsigned input, int value);
 239 struct isl_map *isl_map_fix_si(struct isl_map *map,
 240                 enum isl_dim_type type, unsigned pos, int value);
 241 struct isl_basic_set *isl_basic_map_deltas(struct isl_basic_map *bmap);
 242 struct isl_set *isl_map_deltas(struct isl_map *map);
 243 struct isl_set *isl_map_range(struct isl_map *map);
 244 struct isl_map *isl_map_detect_equalities(struct isl_map *map);
 245 struct isl_basic_map *isl_map_affine_hull(struct isl_map *map);
 246 struct isl_map *isl_map_remove(struct isl_map *map,
 247         enum isl_dim_type type, unsigned first, unsigned n);
 248 struct isl_map *isl_map_remove_inputs(struct isl_map *map,
 249         unsigned first, unsigned n);
 250
 251 struct isl_set *isl_map_domain(struct isl_map *bmap);
 252 struct isl_map *isl_map_from_basic_map(struct isl_basic_map *bmap);
 253 struct isl_map *isl_map_from_range(struct isl_set *set);
 254 struct isl_map *isl_map_from_set(struct isl_set *set, struct isl_dim *dim);
 255 struct isl_set *isl_set_from_map(struct isl_map *map);
 256
 257 int isl_map_fast_is_empty(struct isl_map *map);
 258 int isl_map_is_empty(struct isl_map *map);
 259 int isl_map_is_subset(struct isl_map *map1, struct isl_map *map2);
 260 int isl_map_is_equal(struct isl_map *map1, struct isl_map *map2);
 261
 262 void isl_map_dump(struct isl_map *map, FILE *out, int indent);
 263
 264 int isl_map_fast_input_is_fixed(struct isl_map *map,
 265                 unsigned in, isl_int *val);
 266
 267 int isl_map_fast_is_equal(struct isl_map *map1, struct isl_map *map2);
 268
 269 #if defined(__cplusplus)
 270 }
 271 #endif
 272
 273 #endif