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/*
* Copyright (c) 2003, 2006 Matteo Frigo
* Copyright (c) 2003, 2006 Massachusetts Institute of Technology
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/* $Id: align.c,v 1.29 2006-01-15 20:12:08 athena Exp $ */
#include "ifftw.h"
#if HAVE_SIMD
# define ALGN 16
#elif HAVE_K7
# define ALGN 8
#else
/* disable the alignment machinery, because it will break,
e.g., if sizeof(R) == 12 (as in long-double/x86) */
# define ALGN 0
#endif
/* NONPORTABLE */
int X(alignment_of)(R *p)
{
if (ALGN > 0)
return (int)(((uintptr_t) p) % ALGN);
else
return 0;
}
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