Update the in-tree GMP; fixes trac #832

[ghc-hetmet.git] / rts / gmp / mpn / generic / gcd_1.c

diff --git a/rts/gmp/mpn/generic/gcd_1.c b/rts/gmp/mpn/generic/gcd_1.c
deleted file mode 100644 (file)
index 1832636..0000000
--- a/rts/gmp/mpn/generic/gcd_1.c
+++ /dev/null
@@ -1,77 +0,0 @@
-/* mpn_gcd_1 --
-
-Copyright (C) 1994, 1996, 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 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"
-#include "longlong.h"
-
-/* Does not work for U == 0 or V == 0.  It would be tough to make it work for
-   V == 0 since gcd(x,0) = x, and U does not generally fit in an mp_limb_t.  */
-
-mp_limb_t
-#if __STDC__
-mpn_gcd_1 (mp_srcptr up, mp_size_t size, mp_limb_t vlimb)
-#else
-mpn_gcd_1 (up, size, vlimb)
-     mp_srcptr up;
-     mp_size_t size;
-     mp_limb_t vlimb;
-#endif
-{
-  mp_limb_t ulimb;
-  unsigned long int u_low_zero_bits, v_low_zero_bits;
-
-  if (size > 1)
-    {
-      ulimb = mpn_mod_1 (up, size, vlimb);
-      if (ulimb == 0)
-       return vlimb;
-    }
-  else
-    ulimb = up[0];
-
-  /*  Need to eliminate low zero bits.  */
-  count_trailing_zeros (u_low_zero_bits, ulimb);
-  ulimb >>= u_low_zero_bits;
-
-  count_trailing_zeros (v_low_zero_bits, vlimb);
-  vlimb >>= v_low_zero_bits;
-
-  while (ulimb != vlimb)
-    {
-      if (ulimb > vlimb)
-       {
-         ulimb -= vlimb;
-         do
-           ulimb >>= 1;
-         while ((ulimb & 1) == 0);
-       }
-      else /*  vlimb > ulimb.  */
-       {
-         vlimb -= ulimb;
-         do
-           vlimb >>= 1;
-         while ((vlimb & 1) == 0);
-       }
-    }
-
-  return  ulimb << MIN (u_low_zero_bits, v_low_zero_bits);
-}