Copyright (C) 2000 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
The GNU MP Library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or (at your
option) any later version.
The GNU MP Library 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 Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
#include <intrinsics.h>
#include "gmp.h"
#include "gmp-impl.h"
mp_limb_t
mpn_lshift (mp_ptr wp, mp_srcptr up, mp_size_t n, unsigned int cnt)
{
unsigned sh_1, sh_2;
mp_size_t i;
mp_limb_t retval;
sh_1 = cnt;
sh_2 = GMP_LIMB_BITS - sh_1;
retval = up[n - 1] >> sh_2;
#pragma _CRI ivdep
for (i = n - 1; i > 0; i--)
{
#if 1
wp[i] = (up[i] << sh_1) | (up[i - 1] >> sh_2);
#else
wp[i] = _dshiftl (up[i], up[i - 1], sh_1);
#endif
}
wp[0] = up[0] << sh_1;
return retval;
}
