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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /stdlib/sub_n.c
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
downloadglibc-a334319f6530564d22e775935d9c91663623a1b4.tar.gz
(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'stdlib/sub_n.c')
-rw-r--r--stdlib/sub_n.c62
1 files changed, 0 insertions, 62 deletions
diff --git a/stdlib/sub_n.c b/stdlib/sub_n.c
deleted file mode 100644
index 987ad91eb1..0000000000
--- a/stdlib/sub_n.c
+++ /dev/null
@@ -1,62 +0,0 @@
-/* mpn_sub_n -- Subtract two limb vectors of equal, non-zero length.
-
-Copyright (C) 1992, 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"
-
-mp_limb_t
-#if __STDC__
-mpn_sub_n (mp_ptr res_ptr, mp_srcptr s1_ptr, mp_srcptr s2_ptr, mp_size_t size)
-#else
-mpn_sub_n (res_ptr, s1_ptr, s2_ptr, size)
- register mp_ptr res_ptr;
- register mp_srcptr s1_ptr;
- register mp_srcptr s2_ptr;
- mp_size_t size;
-#endif
-{
- register mp_limb_t x, y, cy;
- register mp_size_t j;
-
- /* The loop counter and index J goes from -SIZE to -1. This way
- the loop becomes faster. */
- j = -size;
-
- /* Offset the base pointers to compensate for the negative indices. */
- s1_ptr -= j;
- s2_ptr -= j;
- res_ptr -= j;
-
- cy = 0;
- do
- {
- y = s2_ptr[j];
- x = s1_ptr[j];
- y += cy; /* add previous carry to subtrahend */
- cy = (y < cy); /* get out carry from that addition */
- y = x - y; /* main subtract */
- cy = (y > x) + cy; /* get out carry from the subtract, combine */
- res_ptr[j] = y;
- }
- while (++j != 0);
-
- return cy;
-}