Index: gcc/gmp/mpn/generic/sb_div_qr.c |
diff --git a/gcc/gmp/mpn/generic/sb_div_qr.c b/gcc/gmp/mpn/generic/sb_div_qr.c |
deleted file mode 100644 |
index 40e4442e21620a08e4317c6baf274f1a1703d804..0000000000000000000000000000000000000000 |
--- a/gcc/gmp/mpn/generic/sb_div_qr.c |
+++ /dev/null |
@@ -1,91 +0,0 @@ |
-/* mpn_sb_div_qr -- schoolbook division with 2-limb sloppy non-greater |
- precomputed inverse, returning quotient and remainder. |
- |
- Contributed to the GNU project by Torbjörn Granlund. |
- |
- THE FUNCTIONS IN THIS FILE ARE INTERNAL WITH A MUTABLE INTERFACE. IT IS |
- ONLY SAFE TO REACH THEM THROUGH DOCUMENTED INTERFACES. IN FACT, IT IS |
- ALMOST GUARANTEED THAT THEY WILL CHANGE OR DISAPPEAR IN A FUTURE GMP |
- RELEASE. |
- |
-Copyright 2006, 2007 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" |
-#include "longlong.h" |
- |
-/* |
- CAVEATS: |
- 1. Should it demand normalized operands like now, or normalize on-the-fly? |
- 2. Overwrites {np,nn} instead of writing remainder to a designated area. |
- 3. Uses mpn_submul_1. It would be nice to somehow make it use mpn_addmul_1 |
- instead. (That would open for mpn_addmul_2 straightforwardly.) |
-*/ |
- |
-mp_limb_t |
-mpn_sb_div_qr (mp_ptr qp, |
- mp_ptr np, mp_size_t nn, |
- mp_srcptr dp, mp_size_t dn, |
- mp_srcptr dip) |
-{ |
- mp_limb_t q, q10, q01a, q00a, q01b, q00b; |
- mp_limb_t cy; |
- mp_size_t i; |
- mp_limb_t qh; |
- mp_limb_t di1, di0; |
- |
- ASSERT (dn > 0); |
- ASSERT (nn >= dn); |
- ASSERT ((dp[dn-1] & GMP_NUMB_HIGHBIT) != 0); |
- ASSERT (! MPN_OVERLAP_P (np, nn, dp, dn)); |
- ASSERT (! MPN_OVERLAP_P (qp, nn-dn, dp, dn)); |
- ASSERT (! MPN_OVERLAP_P (qp, nn-dn, np, nn) || qp+dn >= np); |
- ASSERT_MPN (np, nn); |
- ASSERT_MPN (dp, dn); |
- |
- np += nn; |
- |
- qh = mpn_cmp (np - dn, dp, dn) >= 0; |
- if (qh != 0) |
- mpn_sub_n (np - dn, np - dn, dp, dn); |
- |
- qp += nn - dn; |
- di1 = dip[1]; di0 = dip[0]; |
- for (i = nn - dn; i > 0; i--) |
- { |
- np--; |
- umul_ppmm (q, q10, np[0], di1); |
- umul_ppmm (q01a, q00a, np[-1], di1); |
- add_ssaaaa (q, q10, q, q10, np[0], q01a); |
- umul_ppmm (q01b, q00b, np[0], di0); |
- add_ssaaaa (q, q10, q, q10, 0, q01b); |
- add_ssaaaa (q, q10, q, q10, 0, np[-1]); |
- |
- cy = mpn_submul_1 (np - dn, dp, dn, q); |
- |
- if (UNLIKELY (np[0] > cy || mpn_cmp (np - dn, dp, dn) >= 0)) |
- { |
- q = q + 1; |
- mpn_sub_n (np - dn, np - dn, dp, dn); |
- } |
- |
- *--qp = q; |
- } |
- |
- return qh; |
-} |