[gcc] GCC 4.5.0=>4.5.1

gcc/gmp/mpn/generic/sub_n.c

-/* mpn_sub_n -- Subtract equal length limb vectors.
-
-Copyright 1992, 1993, 1994, 1996, 2000, 2002 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 "gmp.h"
-#include "gmp-impl.h"
-
-
-#if GMP_NAIL_BITS == 0
-
-mp_limb_t
-mpn_sub_n (mp_ptr rp, mp_srcptr up, mp_srcptr vp, mp_size_t n)
-{
-  mp_limb_t ul, vl, sl, rl, cy, cy1, cy2;
-
-  ASSERT (n >= 1);
-  ASSERT (MPN_SAME_OR_SEPARATE_P (rp, up, n));
-  ASSERT (MPN_SAME_OR_SEPARATE_P (rp, vp, n));
-
-  cy = 0;
-  do
-    {
-      ul = *up++;
-      vl = *vp++;
-      sl = ul - vl;
-      cy1 = sl > ul;
-      rl = sl - cy;
-      cy2 = rl > sl;
-      cy = cy1 | cy2;
-      *rp++ = rl;
-    }
-  while (--n != 0);
-
-  return cy;
-}
-
-#endif
-
-#if GMP_NAIL_BITS >= 1
-
-mp_limb_t
-mpn_sub_n (mp_ptr rp, mp_srcptr up, mp_srcptr vp, mp_size_t n)
-{
-  mp_limb_t ul, vl, rl, cy;
-
-  ASSERT (n >= 1);
-  ASSERT (MPN_SAME_OR_SEPARATE_P (rp, up, n));
-  ASSERT (MPN_SAME_OR_SEPARATE_P (rp, vp, n));
-
-  cy = 0;
-  do
-    {
-      ul = *up++;
-      vl = *vp++;
-      rl = ul - vl - cy;
-      cy = rl >> (GMP_LIMB_BITS - 1);
-      *rp++ = rl & GMP_NUMB_MASK;
-    }
-  while (--n != 0);
-
-  return cy;
-}
-
-#endif