| Index: gcc/gmp/mpn/generic/sb_bdiv_qr.c
|
| diff --git a/gcc/gmp/mpn/generic/sb_bdiv_qr.c b/gcc/gmp/mpn/generic/sb_bdiv_qr.c
|
| deleted file mode 100644
|
| index d1cd0dee3231bb27532c5437813c82afe6c2b0d6..0000000000000000000000000000000000000000
|
| --- a/gcc/gmp/mpn/generic/sb_bdiv_qr.c
|
| +++ /dev/null
|
| @@ -1,108 +0,0 @@
|
| -/* mpn_sb_bdiv_qr -- schoolbook Hensel division with precomputed inverse,
|
| - returning quotient and remainder.
|
| -
|
| - Contributed to the GNU project by Niels Möller.
|
| -
|
| - THE FUNCTIONS IN THIS FILE ARE INTERNAL FUNCTIONS WITH MUTABLE INTERFACES.
|
| - IT IS ONLY SAFE TO REACH THEM THROUGH DOCUMENTED INTERFACES.
|
| -
|
| -Copyright 2006 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"
|
| -
|
| -
|
| -/* Computes a binary quotient of size qn = nn - dn.
|
| - Output:
|
| -
|
| - Q = N * D^{-1} mod B^qn,
|
| -
|
| - R = (N - Q * D) * B^(-qn)
|
| -
|
| - Stores the dn least significant limbs of R at {np + nn - dn, dn},
|
| - and returns the borrow from the subtraction N - Q*D.
|
| -
|
| - D must be odd. dinv is (-D)^-1 mod B. */
|
| -
|
| -mp_limb_t
|
| -mpn_sb_bdiv_qr (mp_ptr qp,
|
| - mp_ptr np, mp_size_t nn,
|
| - mp_srcptr dp, mp_size_t dn, mp_limb_t dinv)
|
| -{
|
| - mp_size_t qn;
|
| - mp_size_t i;
|
| - mp_limb_t rh;
|
| - mp_limb_t ql;
|
| -
|
| - ASSERT (nn > 0);
|
| - ASSERT (dn > 0);
|
| - ASSERT (nn > dn);
|
| - ASSERT (dp[0] & 1);
|
| -
|
| - qn = nn - dn;
|
| -
|
| - rh = 0;
|
| -
|
| - /* To complete the negation, this value is added to q. */
|
| - ql = 1;
|
| - while (qn > dn)
|
| - {
|
| - for (i = 0; i < dn; i++)
|
| - {
|
| - mp_limb_t q;
|
| -
|
| - q = dinv * np[i];
|
| - qp[i] = ~q;
|
| -
|
| - np[i] = mpn_addmul_1 (np + i, dp, dn, q);
|
| - }
|
| - rh += mpn_add (np + dn, np + dn, qn, np, dn);
|
| - ql = mpn_add_1 (qp, qp, dn, ql);
|
| -
|
| - qp += dn; qn -= dn;
|
| - np += dn; nn -= dn;
|
| - }
|
| -
|
| - for (i = 0; i < qn; i++)
|
| - {
|
| - mp_limb_t q;
|
| -
|
| - q = dinv * np[i];
|
| - qp[i] = ~q;
|
| -
|
| - np[i] = mpn_addmul_1 (np + i, dp, dn, q);
|
| - }
|
| -
|
| - rh += mpn_add_n (np + dn, np + dn, np, qn);
|
| - ql = mpn_add_1 (qp, qp, qn, ql);
|
| -
|
| - if (UNLIKELY (ql > 0))
|
| - {
|
| - /* q == 0 */
|
| - ASSERT (rh == 0);
|
| - return 0;
|
| - }
|
| - else
|
| - {
|
| - mp_limb_t cy;
|
| -
|
| - cy = mpn_sub_n (np + qn, np + qn, dp, dn);
|
| - ASSERT (cy >= rh);
|
| - return cy - rh;
|
| - }
|
| -}
|
|
|