isl_pw_insert_dims_templ.c

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/*
 * Copyright 2010      INRIA Saclay
 *
 * Use of this software is governed by the MIT license
 *
 * Written by Sven Verdoolaege, INRIA Saclay - Ile-de-France,
 * Parc Club Orsay Universite, ZAC des vignes, 4 rue Jacques Monod,
 * 91893 Orsay, France
 */
 
__isl_give PW *FN(PW,insert_dims)(__isl_take PW *pw, enum isl_dim_type type,
  unsigned first, unsigned n)
{
  int i;
  isl_size n_piece;
  enum isl_dim_type set_type;
  isl_space *space;
 
  n_piece = FN(PW,n_piece)(pw);
  if (n_piece < 0)
    return FN(PW,free)(pw);
  if (n == 0 && !isl_space_is_named_or_nested(pw->dim, type))
    return pw;
 
  set_type = type == isl_dim_in ? isl_dim_set : type;
 
  space = FN(PW,take_space)(pw);
  space = isl_space_insert_dims(space, type, first, n);
  pw = FN(PW,restore_space)(pw, space);
 
  for (i = 0; i < n_piece; ++i) {
    isl_set *domain;
    EL *el;
 
    domain = FN(PW,take_domain_at)(pw, i);
    domain = isl_set_insert_dims(domain, set_type, first, n);
    pw = FN(PW,restore_domain_at)(pw, i, domain);
    el = FN(PW,take_base_at)(pw, i);
    el = FN(EL,insert_dims)(el, type, first, n);
    pw = FN(PW,restore_base_at)(pw, i, el);
  }
 
  return pw;
}
 
__isl_give PW *FN(PW,add_dims)(__isl_take PW *pw, enum isl_dim_type type,
  unsigned n)
{
  isl_size pos;
 
  pos = FN(PW,dim)(pw, type);
  if (pos < 0)
    return FN(PW,free)(pw);
 
  return FN(PW,insert_dims)(pw, type, pos, n);
}