isl_pw_split_dims_templ.c

   1 /*
   2  * Copyright 2010      INRIA Saclay
   3  *
   4  * Use of this software is governed by the MIT license
   5  *
   6  * Written by Sven Verdoolaege, INRIA Saclay - Ile-de-France,
   7  * Parc Club Orsay Universite, ZAC des vignes, 4 rue Jacques Monod,
   8  * 91893 Orsay, France
   9  */
  10
  11 #include <isl_pw_macro.h>
  12
  13 __isl_give PW *FN(PW,split_dims)(__isl_take PW *pw,
  14         enum isl_dim_type type, unsigned first, unsigned n)
  15 {
  16         int i;
  17         isl_size n_piece;
  18
  19         n_piece = FN(PW,n_piece)(pw);
  20         if (n_piece < 0)
  21                 return FN(PW,free)(pw);
  22         if (n == 0)
  23                 return pw;
  24
  25         if (type == isl_dim_in)
  26                 type = isl_dim_set;
  27
  28         for (i = 0; i < n; ++i) {
  29                 isl_set *domain;
  30
  31                 domain = FN(PW,take_domain_at)(pw, i);
  32                 domain = isl_set_split_dims(domain, type, first, n);
  33                 pw = FN(PW,restore_domain_at)(pw, i, domain);
  34         }
  35
  36         return pw;
  37 }