isl_map_private.h

   1 /*
   2  * Copyright 2008-2009 Katholieke Universiteit Leuven
   3  *
   4  * Use of this software is governed by the GNU LGPLv2.1 license
   5  *
   6  * Written by Sven Verdoolaege, K.U.Leuven, Departement
   7  * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
   8  */
   9
  10 #ifndef ISL_MAP_PRIVATE_H
  11 #define ISL_MAP_PRIVATE_H
  12
  13 #include <isl/set.h>
  14 #include <isl/map.h>
  15 #include <isl_reordering.h>
  16 #include <isl/vec.h>
  17
  18 /* A "basic map" is a relation between two sets of variables,
  19  * called the "in" and "out" variables.
  20  *
  21  * It is implemented as a set with two extra fields:
  22  * n_in is the number of in variables
  23  * n_out is the number of out variables
  24  * n_in + n_out should be equal to set.dim
  25  */
  26 struct isl_basic_map {
  27         int ref;
  28 #define ISL_BASIC_MAP_FINAL             (1 << 0)
  29 #define ISL_BASIC_MAP_EMPTY             (1 << 1)
  30 #define ISL_BASIC_MAP_NO_IMPLICIT       (1 << 2)
  31 #define ISL_BASIC_MAP_NO_REDUNDANT      (1 << 3)
  32 #define ISL_BASIC_MAP_RATIONAL          (1 << 4)
  33 #define ISL_BASIC_MAP_NORMALIZED        (1 << 5)
  34 #define ISL_BASIC_MAP_NORMALIZED_DIVS   (1 << 6)
  35 #define ISL_BASIC_MAP_ALL_EQUALITIES    (1 << 7)
  36         unsigned flags;
  37
  38         struct isl_ctx *ctx;
  39
  40         struct isl_dim *dim;
  41         unsigned extra;
  42
  43         unsigned n_eq;
  44         unsigned n_ineq;
  45
  46         size_t c_size;
  47         isl_int **eq;
  48         isl_int **ineq;
  49
  50         unsigned n_div;
  51
  52         isl_int **div;
  53
  54         struct isl_vec *sample;
  55
  56         struct isl_blk block;
  57         struct isl_blk block2;
  58 };
  59
  60 /* A "basic set" is a basic map with a zero-dimensional
  61  * domain.
  62  */
  63 struct isl_basic_set {
  64         int ref;
  65 #define ISL_BASIC_SET_FINAL             (1 << 0)
  66 #define ISL_BASIC_SET_EMPTY             (1 << 1)
  67 #define ISL_BASIC_SET_NO_IMPLICIT       (1 << 2)
  68 #define ISL_BASIC_SET_NO_REDUNDANT      (1 << 3)
  69 #define ISL_BASIC_SET_RATIONAL          (1 << 4)
  70 #define ISL_BASIC_SET_NORMALIZED        (1 << 5)
  71 #define ISL_BASIC_SET_NORMALIZED_DIVS   (1 << 6)
  72 #define ISL_BASIC_SET_ALL_EQUALITIES    (1 << 7)
  73         unsigned flags;
  74
  75         struct isl_ctx *ctx;
  76
  77         struct isl_dim *dim;
  78         unsigned extra;
  79
  80         unsigned n_eq;
  81         unsigned n_ineq;
  82
  83         size_t c_size;
  84         isl_int **eq;
  85         isl_int **ineq;
  86
  87         unsigned n_div;
  88
  89         isl_int **div;
  90
  91         struct isl_vec *sample;
  92
  93         struct isl_blk block;
  94         struct isl_blk block2;
  95 };
  96
  97 /* A "set" is a (possibly disjoint) union of basic sets.
  98  *
  99  * See the documentation of isl_map.
 100  */
 101 struct isl_set {
 102         int ref;
 103 #define ISL_SET_DISJOINT                (1 << 0)
 104 #define ISL_SET_NORMALIZED              (1 << 1)
 105         unsigned flags;
 106
 107         struct isl_ctx *ctx;
 108
 109         struct isl_dim *dim;
 110
 111         int n;
 112
 113         size_t size;
 114         struct isl_basic_set *p[1];
 115 };
 116
 117 __isl_give isl_map *isl_map_realign(__isl_take isl_map *map,
 118         __isl_take isl_reordering *r);
 119 __isl_give isl_set *isl_set_realign(__isl_take isl_set *set,
 120         __isl_take isl_reordering *r);
 121
 122 __isl_give isl_map *isl_map_reset(__isl_take isl_map *map,
 123         enum isl_dim_type type);
 124
 125 __isl_give isl_basic_map *isl_basic_map_reset_dim(
 126         __isl_take isl_basic_map *bmap, __isl_take isl_dim *dim);
 127 __isl_give isl_map *isl_map_reset_dim(__isl_take isl_map *map,
 128         __isl_take isl_dim *dim);
 129
 130 unsigned isl_basic_map_offset(struct isl_basic_map *bmap,
 131                                         enum isl_dim_type type);
 132
 133 int isl_map_compatible_domain(struct isl_map *map, struct isl_set *set);
 134 int isl_basic_map_compatible_domain(struct isl_basic_map *bmap,
 135                 struct isl_basic_set *bset);
 136 int isl_basic_map_compatible_range(struct isl_basic_map *bmap,
 137                 struct isl_basic_set *bset);
 138
 139 struct isl_basic_map *isl_basic_map_extend_dim(struct isl_basic_map *base,
 140                 struct isl_dim *dim, unsigned extra,
 141                 unsigned n_eq, unsigned n_ineq);
 142 struct isl_basic_set *isl_basic_set_extend_dim(struct isl_basic_set *base,
 143                 struct isl_dim *dim, unsigned extra,
 144                 unsigned n_eq, unsigned n_ineq);
 145 struct isl_basic_set *isl_basic_set_add_constraints(struct isl_basic_set *bset1,
 146                 struct isl_basic_set *bset2, unsigned pos);
 147
 148 struct isl_map *isl_map_grow(struct isl_map *map, int n);
 149 struct isl_set *isl_set_grow(struct isl_set *set, int n);
 150
 151 int isl_basic_set_contains(struct isl_basic_set *bset, struct isl_vec *vec);
 152 int isl_basic_map_contains(struct isl_basic_map *bmap, struct isl_vec *vec);
 153
 154 struct isl_basic_set *isl_basic_set_alloc_dim(struct isl_dim *dim,
 155                 unsigned extra, unsigned n_eq, unsigned n_ineq);
 156 struct isl_set *isl_set_alloc_dim(struct isl_dim *dim, int n, unsigned flags);
 157 struct isl_basic_map *isl_basic_map_alloc_dim(struct isl_dim *dim,
 158                 unsigned extra, unsigned n_eq, unsigned n_ineq);
 159 struct isl_map *isl_map_alloc_dim(struct isl_dim *dim, int n, unsigned flags);
 160
 161 unsigned isl_basic_map_total_dim(const struct isl_basic_map *bmap);
 162
 163 int isl_basic_map_alloc_equality(struct isl_basic_map *bmap);
 164 int isl_basic_set_alloc_equality(struct isl_basic_set *bset);
 165 int isl_basic_set_free_inequality(struct isl_basic_set *bset, unsigned n);
 166 int isl_basic_map_free_equality(struct isl_basic_map *bmap, unsigned n);
 167 int isl_basic_set_free_equality(struct isl_basic_set *bset, unsigned n);
 168 int isl_basic_set_alloc_inequality(struct isl_basic_set *bset);
 169 int isl_basic_map_alloc_inequality(struct isl_basic_map *bmap);
 170 int isl_basic_map_free_inequality(struct isl_basic_map *bmap, unsigned n);
 171 int isl_basic_map_alloc_div(struct isl_basic_map *bmap);
 172 int isl_basic_set_alloc_div(struct isl_basic_set *bset);
 173 int isl_basic_map_free_div(struct isl_basic_map *bmap, unsigned n);
 174 int isl_basic_set_free_div(struct isl_basic_set *bset, unsigned n);
 175 void isl_basic_map_inequality_to_equality(
 176                 struct isl_basic_map *bmap, unsigned pos);
 177 int isl_basic_map_drop_equality(struct isl_basic_map *bmap, unsigned pos);
 178 int isl_basic_set_drop_equality(struct isl_basic_set *bset, unsigned pos);
 179 int isl_basic_set_drop_inequality(struct isl_basic_set *bset, unsigned pos);
 180 int isl_basic_map_drop_inequality(struct isl_basic_map *bmap, unsigned pos);
 181 __isl_give isl_basic_set *isl_basic_set_add_eq(__isl_take isl_basic_set *bset,
 182         isl_int *eq);
 183 __isl_give isl_basic_map *isl_basic_map_add_eq(__isl_take isl_basic_map *bmap,
 184         isl_int *eq);
 185 __isl_give isl_basic_set *isl_basic_set_add_ineq(__isl_take isl_basic_set *bset,
 186         isl_int *ineq);
 187 __isl_give isl_basic_map *isl_basic_map_add_ineq(__isl_take isl_basic_map *bmap,
 188         isl_int *ineq);
 189
 190 int isl_inequality_negate(struct isl_basic_map *bmap, unsigned pos);
 191
 192 struct isl_basic_set *isl_basic_set_cow(struct isl_basic_set *bset);
 193 struct isl_basic_map *isl_basic_map_cow(struct isl_basic_map *bmap);
 194 struct isl_set *isl_set_cow(struct isl_set *set);
 195 struct isl_map *isl_map_cow(struct isl_map *map);
 196
 197 struct isl_basic_map *isl_basic_map_set_to_empty(struct isl_basic_map *bmap);
 198 struct isl_basic_set *isl_basic_set_set_to_empty(struct isl_basic_set *bset);
 199 struct isl_basic_set *isl_basic_set_order_divs(struct isl_basic_set *bset);
 200 void isl_basic_map_swap_div(struct isl_basic_map *bmap, int a, int b);
 201 struct isl_basic_map *isl_basic_map_order_divs(struct isl_basic_map *bmap);
 202 __isl_give isl_map *isl_map_order_divs(__isl_take isl_map *map);
 203 struct isl_basic_map *isl_basic_map_align_divs(
 204                 struct isl_basic_map *dst, struct isl_basic_map *src);
 205 struct isl_basic_set *isl_basic_set_align_divs(
 206                 struct isl_basic_set *dst, struct isl_basic_set *src);
 207 struct isl_basic_map *isl_basic_map_gauss(
 208         struct isl_basic_map *bmap, int *progress);
 209 struct isl_basic_set *isl_basic_set_gauss(
 210         struct isl_basic_set *bset, int *progress);
 211 __isl_give isl_basic_set *isl_basic_set_sort_constraints(
 212         __isl_take isl_basic_set *bset);
 213 int isl_basic_map_fast_cmp(const __isl_keep isl_basic_map *bmap1,
 214         const __isl_keep isl_basic_map *bmap2);
 215 int isl_basic_set_fast_is_equal(__isl_keep isl_basic_set *bset1,
 216         __isl_keep isl_basic_set *bset2);
 217 int isl_basic_map_fast_is_equal(__isl_keep isl_basic_map *bmap1,
 218         __isl_keep isl_basic_map *bmap2);
 219 struct isl_basic_map *isl_basic_map_normalize_constraints(
 220         struct isl_basic_map *bmap);
 221 struct isl_basic_set *isl_basic_set_normalize_constraints(
 222         struct isl_basic_set *bset);
 223 struct isl_basic_map *isl_basic_map_implicit_equalities(
 224                                                 struct isl_basic_map *bmap);
 225 struct isl_basic_set *isl_basic_map_underlying_set(struct isl_basic_map *bmap);
 226 __isl_give isl_basic_set *isl_basic_set_underlying_set(
 227                 __isl_take isl_basic_set *bset);
 228 struct isl_set *isl_map_underlying_set(struct isl_map *map);
 229 struct isl_basic_map *isl_basic_map_overlying_set(struct isl_basic_set *bset,
 230         struct isl_basic_map *like);
 231 __isl_give isl_basic_set *isl_basic_set_drop_constraints_involving(
 232         __isl_take isl_basic_set *bset, unsigned first, unsigned n);
 233 __isl_give isl_basic_set *isl_basic_set_drop(__isl_take isl_basic_set *bset,
 234         enum isl_dim_type type, unsigned first, unsigned n);
 235 struct isl_basic_map *isl_basic_map_drop(struct isl_basic_map *bmap,
 236         enum isl_dim_type type, unsigned first, unsigned n);
 237 struct isl_set *isl_set_drop(struct isl_set *set,
 238         enum isl_dim_type type, unsigned first, unsigned n);
 239 struct isl_basic_set *isl_basic_set_drop_dims(
 240                 struct isl_basic_set *bset, unsigned first, unsigned n);
 241 struct isl_set *isl_set_drop_dims(
 242                 struct isl_set *set, unsigned first, unsigned n);
 243 struct isl_map *isl_map_drop_inputs(
 244                 struct isl_map *map, unsigned first, unsigned n);
 245 struct isl_map *isl_map_drop(struct isl_map *map,
 246         enum isl_dim_type type, unsigned first, unsigned n);
 247
 248 struct isl_map *isl_map_remove_empty_parts(struct isl_map *map);
 249 struct isl_set *isl_set_remove_empty_parts(struct isl_set *set);
 250
 251 struct isl_set *isl_set_normalize(struct isl_set *set);
 252
 253 struct isl_set *isl_set_drop_vars(
 254                 struct isl_set *set, unsigned first, unsigned n);
 255
 256 struct isl_basic_map *isl_basic_map_eliminate_vars(
 257         struct isl_basic_map *bmap, unsigned pos, unsigned n);
 258 struct isl_basic_set *isl_basic_set_eliminate_vars(
 259         struct isl_basic_set *bset, unsigned pos, unsigned n);
 260
 261 __isl_give isl_map *isl_map_eliminate(__isl_take isl_map *map,
 262         enum isl_dim_type type, unsigned first, unsigned n);
 263 __isl_give isl_set *isl_set_eliminate(__isl_take isl_set *set,
 264         enum isl_dim_type type, unsigned first, unsigned n);
 265
 266 int isl_basic_set_constraint_is_redundant(struct isl_basic_set **bset,
 267         isl_int *c, isl_int *opt_n, isl_int *opt_d);
 268
 269 int isl_basic_map_add_div_constraints(struct isl_basic_map *bmap, unsigned div);
 270 struct isl_basic_map *isl_basic_map_drop_redundant_divs(
 271         struct isl_basic_map *bmap);
 272 struct isl_basic_set *isl_basic_set_drop_redundant_divs(
 273         struct isl_basic_set *bset);
 274
 275 struct isl_basic_set *isl_basic_set_recession_cone(struct isl_basic_set *bset);
 276 struct isl_basic_set *isl_basic_set_lineality_space(struct isl_basic_set *bset);
 277
 278 struct isl_basic_set *isl_basic_set_set_rational(struct isl_basic_set *bset);
 279
 280 struct isl_mat;
 281
 282 struct isl_basic_set *isl_basic_set_preimage(struct isl_basic_set *bset,
 283         struct isl_mat *mat);
 284 struct isl_set *isl_set_preimage(struct isl_set *set, struct isl_mat *mat);
 285
 286 isl_int *isl_set_wrap_facet(__isl_keep isl_set *set,
 287         isl_int *facet, isl_int *ridge);
 288
 289 int isl_basic_map_contains_point(__isl_keep isl_basic_map *bmap,
 290         __isl_keep isl_point *point);
 291 int isl_set_contains_point(__isl_keep isl_set *set, __isl_keep isl_point *point);
 292
 293 int isl_basic_set_vars_get_sign(__isl_keep isl_basic_set *bset,
 294         unsigned first, unsigned n, int *signs);
 295 int isl_set_foreach_orthant(__isl_keep isl_set *set,
 296         int (*fn)(__isl_take isl_set *orthant, int *signs, void *user),
 297         void *user);
 298
 299 int isl_basic_set_add_div_constraints_var(__isl_keep isl_basic_set *bset,
 300         unsigned pos, isl_int *div);
 301 int isl_basic_map_is_div_constraint(__isl_keep isl_basic_map *bmap,
 302         isl_int *constraint, unsigned div);
 303
 304 #endif