isl_multi_from_tuple_templ.c

   1 /*
   2  * Copyright 2011      Sven Verdoolaege
   3  * Copyright 2012      Ecole Normale Superieure
   4  *
   5  * Use of this software is governed by the MIT license
   6  *
   7  * Written by Sven Verdoolaege,
   8  * Ecole Normale Superieure, 45 rue d'Ulm, 75230 Paris, France
   9  */
  10
  11 #include <isl_multi_macro.h>
  12
  13 /* Extract a multi expression with domain space "dom_space"
  14  * from a tuple "tuple" that was read by read_tuple.
  15  *
  16  * Check that none of the expressions depend on any other output/set dimensions.
  17  */
  18 static MULTI(BASE) *FN(MULTI(BASE),from_tuple)(
  19         __isl_take isl_space *dom_space, __isl_take isl_multi_pw_aff *tuple)
  20 {
  21         int i;
  22         isl_size dim, n;
  23         isl_space *space;
  24         MULTI(BASE) *multi;
  25
  26         n = isl_multi_pw_aff_dim(tuple, isl_dim_out);
  27         dim = isl_space_dim(dom_space, isl_dim_all);
  28         if (n < 0 || dim < 0)
  29                 dom_space = isl_space_free(dom_space);
  30         space = isl_space_range(isl_multi_pw_aff_get_space(tuple));
  31         space = isl_space_align_params(space, isl_space_copy(dom_space));
  32         if (!isl_space_is_params(dom_space))
  33                 space = isl_space_map_from_domain_and_range(
  34                                 isl_space_copy(dom_space), space);
  35         isl_space_free(dom_space);
  36         multi = FN(MULTI(BASE),alloc)(space);
  37
  38         for (i = 0; i < n; ++i) {
  39                 isl_pw_aff *pa;
  40                 pa = isl_multi_pw_aff_get_pw_aff(tuple, i);
  41                 multi = FN(MULTI(BASE),set_tuple_entry)(multi, pa, i, dim, n);
  42         }
  43
  44         isl_multi_pw_aff_free(tuple);
  45         return multi;
  46 }