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