isl_multi_templ.c

   1 /*
   2  * Copyright 2011      Sven Verdoolaege
   3  *
   4  * Use of this software is governed by the GNU LGPLv2.1 license
   5  */
   6
   7 #define xCAT(A,B) A ## B
   8 #define CAT(A,B) xCAT(A,B)
   9 #undef EL
  10 #define EL CAT(isl_,BASE)
  11 #define xFN(TYPE,NAME) TYPE ## _ ## NAME
  12 #define FN(TYPE,NAME) xFN(TYPE,NAME)
  13 #define xMULTI(BASE) isl_multi_ ## BASE
  14 #define MULTI(BASE) xMULTI(BASE)
  15 #define MULTI_NAME(BASE) "isl_multi_" #BASE
  16 #define xLIST(EL) EL ## _list
  17 #define LIST(EL) xLIST(EL)
  18
  19 isl_ctx *FN(MULTI(BASE),get_ctx)(__isl_keep MULTI(BASE) *multi)
  20 {
  21         return multi ? isl_space_get_ctx(multi->space) : NULL;
  22 }
  23
  24 __isl_give isl_space *FN(MULTI(BASE),get_space)(__isl_keep MULTI(BASE) *multi)
  25 {
  26         return multi ? isl_space_copy(multi->space) : NULL;
  27 }
  28
  29 __isl_give isl_space *FN(MULTI(BASE),get_domain_space)(
  30         __isl_keep MULTI(BASE) *multi)
  31 {
  32         return multi ? isl_space_domain(isl_space_copy(multi->space)) : NULL;
  33 }
  34
  35 __isl_give MULTI(BASE) *FN(MULTI(BASE),alloc)(__isl_take isl_space *space)
  36 {
  37         isl_ctx *ctx;
  38         int n;
  39         MULTI(BASE) *multi;
  40
  41         if (!space)
  42                 return NULL;
  43
  44         ctx = isl_space_get_ctx(space);
  45         n = isl_space_dim(space, isl_dim_out);
  46         multi = isl_calloc(ctx, MULTI(BASE),
  47                          sizeof(MULTI(BASE)) + (n - 1) * sizeof(struct EL *));
  48         if (!multi)
  49                 goto error;
  50
  51         multi->space = space;
  52         multi->n = n;
  53         multi->ref = 1;
  54         return multi;
  55 error:
  56         isl_space_free(space);
  57         return NULL;
  58 }
  59
  60 __isl_give MULTI(BASE) *FN(MULTI(BASE),dup)(__isl_keep MULTI(BASE) *multi)
  61 {
  62         int i;
  63         MULTI(BASE) *dup;
  64
  65         if (!multi)
  66                 return NULL;
  67
  68         dup = FN(MULTI(BASE),alloc)(isl_space_copy(multi->space));
  69         if (!dup)
  70                 return NULL;
  71
  72         for (i = 0; i < multi->n; ++i)
  73                 dup = FN(FN(MULTI(BASE),set),BASE)(dup, i,
  74                                                     FN(EL,copy)(multi->p[i]));
  75
  76         return dup;
  77 }
  78
  79 __isl_give MULTI(BASE) *FN(MULTI(BASE),cow)(__isl_take MULTI(BASE) *multi)
  80 {
  81         if (!multi)
  82                 return NULL;
  83
  84         if (multi->ref == 1)
  85                 return multi;
  86
  87         multi->ref--;
  88         return FN(MULTI(BASE),dup)(multi);
  89 }
  90
  91 __isl_give MULTI(BASE) *FN(MULTI(BASE),copy)(__isl_keep MULTI(BASE) *multi)
  92 {
  93         if (!multi)
  94                 return NULL;
  95
  96         multi->ref++;
  97         return multi;
  98 }
  99
 100 void *FN(MULTI(BASE),free)(__isl_take MULTI(BASE) *multi)
 101 {
 102         int i;
 103
 104         if (!multi)
 105                 return NULL;
 106
 107         if (--multi->ref > 0)
 108                 return NULL;
 109
 110         isl_space_free(multi->space);
 111         for (i = 0; i < multi->n; ++i)
 112                 FN(EL,free)(multi->p[i]);
 113         free(multi);
 114
 115         return NULL;
 116 }
 117
 118 unsigned FN(MULTI(BASE),dim)(__isl_keep MULTI(BASE) *multi,
 119         enum isl_dim_type type)
 120 {
 121         return multi ? isl_space_dim(multi->space, type) : 0;
 122 }
 123
 124 const char *FN(MULTI(BASE),get_tuple_name)(__isl_keep MULTI(BASE) *multi,
 125         enum isl_dim_type type)
 126 {
 127         return multi ? isl_space_get_tuple_name(multi->space, type) : NULL;
 128 }
 129
 130 __isl_give EL *FN(FN(MULTI(BASE),get),BASE)(__isl_keep MULTI(BASE) *multi,
 131         int pos)
 132 {
 133         isl_ctx *ctx;
 134
 135         if (!multi)
 136                 return NULL;
 137         ctx = FN(MULTI(BASE),get_ctx)(multi);
 138         if (pos < 0 || pos >= multi->n)
 139                 isl_die(ctx, isl_error_invalid,
 140                         "index out of bounds", return NULL);
 141         return FN(EL,copy)(multi->p[pos]);
 142 }
 143
 144 __isl_give MULTI(BASE) *FN(FN(MULTI(BASE),set),BASE)(
 145         __isl_take MULTI(BASE) *multi, int pos, __isl_take EL *el)
 146 {
 147         if (!multi || !el)
 148                 goto error;
 149
 150         FN(EL,free)(multi->p[pos]);
 151         multi->p[pos] = el;
 152
 153         return multi;
 154 error:
 155         FN(MULTI(BASE),free)(multi);
 156         FN(EL,free)(el);
 157         return NULL;
 158 }
 159
 160 /* Reset the space of "multi".  This function is called from isl_pw_templ.c
 161  * and doesn't know if the space of an element object is represented
 162  * directly or through its domain.  It therefore passes along both,
 163  * which we pass along to the element function since we don't how
 164  * that is represented either.
 165  */
 166 __isl_give MULTI(BASE) *FN(MULTI(BASE),reset_space_and_domain)(
 167         __isl_take MULTI(BASE) *multi, __isl_take isl_space *space,
 168         __isl_take isl_space *domain)
 169 {
 170         int i;
 171
 172         multi = FN(MULTI(BASE),cow)(multi);
 173         if (!multi || !space || !domain)
 174                 goto error;
 175
 176         for (i = 0; i < multi->n; ++i) {
 177                 multi->p[i] = FN(EL,reset_space_and_domain)(multi->p[i],
 178                                  isl_space_copy(space), isl_space_copy(domain));
 179                 if (!multi->p[i])
 180                         goto error;
 181         }
 182         isl_space_free(domain);
 183         isl_space_free(multi->space);
 184         multi->space = space;
 185
 186         return multi;
 187 error:
 188         isl_space_free(domain);
 189         isl_space_free(space);
 190         FN(MULTI(BASE),free)(multi);
 191         return NULL;
 192 }
 193
 194 __isl_give MULTI(BASE) *FN(MULTI(BASE),reset_domain_space)(
 195         __isl_take MULTI(BASE) *multi, __isl_take isl_space *domain)
 196 {
 197         isl_space *space;
 198
 199         space = isl_space_extend_domain_with_range(isl_space_copy(domain),
 200                                                 isl_space_copy(multi->space));
 201         return FN(MULTI(BASE),reset_space_and_domain)(multi, space, domain);
 202 }
 203
 204 __isl_give MULTI(BASE) *FN(MULTI(BASE),realign_domain)(
 205         __isl_take MULTI(BASE) *multi, __isl_take isl_reordering *exp)
 206 {
 207         int i;
 208
 209         multi = FN(MULTI(BASE),cow)(multi);
 210         if (!multi || !exp)
 211                 return NULL;
 212
 213         for (i = 0; i < multi->n; ++i) {
 214                 multi->p[i] = FN(EL,realign_domain)(multi->p[i],
 215                                                 isl_reordering_copy(exp));
 216                 if (!multi->p[i])
 217                         goto error;
 218         }
 219
 220         multi = FN(MULTI(BASE),reset_domain_space)(multi,
 221                                                     isl_space_copy(exp->dim));
 222
 223         isl_reordering_free(exp);
 224         return multi;
 225 error:
 226         isl_reordering_free(exp);
 227         FN(MULTI(BASE),free)(multi);
 228         return NULL;
 229 }
 230
 231 /* Align the parameters of "multi" to those of "model".
 232  */
 233 __isl_give MULTI(BASE) *FN(MULTI(BASE),align_params)(
 234         __isl_take MULTI(BASE) *multi, __isl_take isl_space *model)
 235 {
 236         isl_ctx *ctx;
 237
 238         if (!multi || !model)
 239                 goto error;
 240
 241         ctx = isl_space_get_ctx(model);
 242         if (!isl_space_has_named_params(model))
 243                 isl_die(ctx, isl_error_invalid,
 244                         "model has unnamed parameters", goto error);
 245         if (!isl_space_has_named_params(multi->space))
 246                 isl_die(ctx, isl_error_invalid,
 247                         "input has unnamed parameters", goto error);
 248         if (!isl_space_match(multi->space, isl_dim_param,
 249                              model, isl_dim_param)) {
 250                 isl_reordering *exp;
 251
 252                 model = isl_space_params(model);
 253                 exp = isl_parameter_alignment_reordering(multi->space, model);
 254                 exp = isl_reordering_extend_space(exp,
 255                                     FN(MULTI(BASE),get_domain_space)(multi));
 256                 multi = FN(MULTI(BASE),realign_domain)(multi, exp);
 257         }
 258
 259         isl_space_free(model);
 260         return multi;
 261 error:
 262         isl_space_free(model);
 263         FN(MULTI(BASE),free)(multi);
 264         return NULL;
 265 }
 266
 267 static __isl_give MULTI(BASE) *align_params_multi_set_and(
 268         __isl_take MULTI(BASE) *multi, __isl_take isl_set *set,
 269         __isl_give MULTI(BASE) *(*fn)(__isl_take MULTI(BASE) *multi,
 270                                         __isl_take isl_set *set))
 271 {
 272         isl_ctx *ctx;
 273
 274         if (!multi || !set)
 275                 goto error;
 276         if (isl_space_match(multi->space, isl_dim_param,
 277                             set->dim, isl_dim_param))
 278                 return fn(multi, set);
 279         ctx = FN(MULTI(BASE),get_ctx)(multi);
 280         if (!isl_space_has_named_params(multi->space) ||
 281             !isl_space_has_named_params(set->dim))
 282                 isl_die(ctx, isl_error_invalid,
 283                         "unaligned unnamed parameters", goto error);
 284         multi = FN(MULTI(BASE),align_params)(multi, isl_set_get_space(set));
 285         set = isl_set_align_params(set, FN(MULTI(BASE),get_space)(multi));
 286         return fn(multi, set);
 287 error:
 288         FN(MULTI(BASE),free)(multi);
 289         isl_set_free(set);
 290         return NULL;
 291 }
 292
 293 __isl_give MULTI(BASE) *FN(MULTI(BASE),gist_aligned)(
 294         __isl_take MULTI(BASE) *multi, __isl_take isl_set *context)
 295 {
 296         int i;
 297
 298         if (!multi || !context)
 299                 goto error;
 300
 301         for (i = 0; i < multi->n; ++i) {
 302                 multi->p[i] = FN(EL,gist)(multi->p[i], isl_set_copy(context));
 303                 if (!multi->p[i])
 304                         goto error;
 305         }
 306
 307         isl_set_free(context);
 308         return multi;
 309 error:
 310         isl_set_free(context);
 311         FN(MULTI(BASE),free)(multi);
 312         return NULL;
 313 }
 314
 315 __isl_give MULTI(BASE) *FN(MULTI(BASE),gist)(__isl_take MULTI(BASE) *multi,
 316         __isl_take isl_set *context)
 317 {
 318         return align_params_multi_set_and(multi, context,
 319                                                 &FN(MULTI(BASE),gist_aligned));
 320 }
 321
 322 __isl_give MULTI(BASE) *FN(MULTI(BASE),gist_params)(
 323         __isl_take MULTI(BASE) *multi, __isl_take isl_set *context)
 324 {
 325         isl_space *space = FN(MULTI(BASE),get_domain_space)(multi);
 326         isl_set *dom_context = isl_set_universe(space);
 327         dom_context = isl_set_intersect_params(dom_context, context);
 328         return FN(MULTI(BASE),gist)(multi, dom_context);
 329 }
 330
 331 __isl_give MULTI(BASE) *FN(FN(MULTI(BASE),from),LIST(BASE))(
 332         __isl_take isl_space *space, __isl_take LIST(EL) *list)
 333 {
 334         int i;
 335         int n;
 336         isl_ctx *ctx;
 337         MULTI(BASE) *multi;
 338
 339         if (!space || !list)
 340                 goto error;
 341
 342         ctx = isl_space_get_ctx(space);
 343         n = FN(FN(LIST(EL),n),BASE)(list);
 344         if (n != isl_space_dim(space, isl_dim_out))
 345                 isl_die(ctx, isl_error_invalid,
 346                         "invalid number of elements in list", goto error);
 347
 348         multi = FN(MULTI(BASE),alloc)(isl_space_copy(space));
 349         for (i = 0; i < n; ++i) {
 350                 multi = FN(FN(MULTI(BASE),set),BASE)(multi, i,
 351                                         FN(FN(LIST(EL),get),BASE)(list, i));
 352         }
 353
 354         isl_space_free(space);
 355         FN(LIST(EL),free)(list);
 356         return multi;
 357 error:
 358         isl_space_free(space);
 359         FN(LIST(EL),free)(list);
 360         return NULL;
 361 }