polly/lib/External/isl/isl_multi_domain_templ.c

   1 /*
   2  * Copyright 2013      Ecole Normale Superieure
   3  *
   4  * Use of this software is governed by the MIT license
   5  *
   6  * Written by Sven Verdoolaege,
   7  * Ecole Normale Superieure, 45 rue d'Ulm, 75230 Paris, France
   8  */
   9
  10 #include <isl/set.h>
  11
  12 #include <isl_multi_macro.h>
  13
  14 /* Return the shared domain of the elements of "multi".
  15  *
  16  * If "multi" has an explicit domain, then return this domain.
  17  */
  18 __isl_give isl_set *FN(MULTI(BASE),domain)(__isl_take MULTI(BASE) *multi)
  19 {
  20         int i;
  21         isl_set *dom;
  22
  23         if (!multi)
  24                 return NULL;
  25
  26         if (FN(MULTI(BASE),has_explicit_domain)(multi)) {
  27                 dom = FN(MULTI(BASE),get_explicit_domain)(multi);
  28                 FN(MULTI(BASE),free)(multi);
  29                 return dom;
  30         }
  31
  32         dom = isl_set_universe(FN(MULTI(BASE),get_domain_space)(multi));
  33         for (i = 0; i < multi->n; ++i) {
  34                 isl_set *dom_i;
  35
  36                 dom_i = FN(EL,domain)(FN(FN(MULTI(BASE),get),BASE)(multi, i));
  37                 dom = isl_set_intersect(dom, dom_i);
  38         }
  39
  40         FN(MULTI(BASE),free)(multi);
  41         return dom;
  42 }