Update the in-tree GMP; fixes trac #832

[ghc-hetmet.git] / rts / gmp / mpn / generic / rshift.c

diff --git a/rts/gmp/mpn/generic/rshift.c b/rts/gmp/mpn/generic/rshift.c
deleted file mode 100644 (file)
index 59caf73..0000000
--- a/rts/gmp/mpn/generic/rshift.c
+++ /dev/null
@@ -1,88 +0,0 @@
-/* mpn_rshift -- Shift right a low-level natural-number integer.
-
-Copyright (C) 1991, 1993, 1994, 1996 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 2.1 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; see the file COPYING.LIB.  If not, write to
-the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
-MA 02111-1307, USA. */
-
-#include "gmp.h"
-#include "gmp-impl.h"
-
-/* Shift U (pointed to by UP and USIZE limbs long) CNT bits to the right
-   and store the USIZE least significant limbs of the result at WP.
-   The bits shifted out to the right are returned.
-
-   Argument constraints:
-   1. 0 < CNT < BITS_PER_MP_LIMB
-   2. If the result is to be written over the input, WP must be <= UP.
-*/
-
-mp_limb_t
-#if __STDC__
-mpn_rshift (register mp_ptr wp,
-           register mp_srcptr up, mp_size_t usize,
-           register unsigned int cnt)
-#else
-mpn_rshift (wp, up, usize, cnt)
-     register mp_ptr wp;
-     register mp_srcptr up;
-     mp_size_t usize;
-     register unsigned int cnt;
-#endif
-{
-  register mp_limb_t high_limb, low_limb;
-  register unsigned sh_1, sh_2;
-  register mp_size_t i;
-  mp_limb_t retval;
-
-#ifdef DEBUG
-  if (usize == 0 || cnt == 0)
-    abort ();
-#endif
-
-  sh_1 = cnt;
-
-#if 0
-  if (sh_1 == 0)
-    {
-      if (wp != up)
-       {
-         /* Copy from low end to high end, to allow specified input/output
-            overlapping.  */
-         for (i = 0; i < usize; i++)
-           wp[i] = up[i];
-       }
-      return usize;
-    }
-#endif
-
-  wp -= 1;
-  sh_2 = BITS_PER_MP_LIMB - sh_1;
-  high_limb = up[0];
-  retval = high_limb << sh_2;
-  low_limb = high_limb;
-
-  for (i = 1; i < usize; i++)
-    {
-      high_limb = up[i];
-      wp[i] = (low_limb >> sh_1) | (high_limb << sh_2);
-      low_limb = high_limb;
-    }
-  wp[i] = low_limb >> sh_1;
-
-  return retval;
-}