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-rw-r--r--sysdeps/alpha/memchr.c86
1 files changed, 0 insertions, 86 deletions
diff --git a/sysdeps/alpha/memchr.c b/sysdeps/alpha/memchr.c
deleted file mode 100644
index a911302ea6..0000000000
--- a/sysdeps/alpha/memchr.c
+++ /dev/null
@@ -1,86 +0,0 @@
-/* Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
-
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
-
-The GNU C 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
-Library General Public License for more details.
-
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA. */
-
-#include <string.h>
-
-/* Search no more than N bytes of S for C. */
-
-void *
-memchr (const void *s, int c, size_t n)
-{
- const char *char_ptr;
- const unsigned long int *longword_ptr;
- unsigned long int charmask;
- size_t x;
-
- c = (unsigned char) c;
-
- /* Handle the first few characters by reading one character at a time.
- Do this until STR is aligned on a 8-byte border. */
- for (char_ptr = s; n > 0 && ((unsigned long int) char_ptr & 7) != 0;
- --n, ++char_ptr)
- if (*char_ptr == c)
- return (void *) char_ptr;
-
- if (n == (size_t)0)
- return NULL;
-
- x = n;
-
- longword_ptr = (unsigned long int *) char_ptr;
-
- /* Set up a longword, each of whose bytes is C. */
- charmask = c | (c << 8);
- charmask |= charmask << 16;
- charmask |= charmask << 32;
-
- for (;;)
- {
- const unsigned long int longword = *longword_ptr++;
- int ge, le;
-
- if (x < 4)
- x = (size_t) 0;
- else
- x -= 4;
-
- /* Set bits in GE if bytes in CHARMASK are >= bytes in LONGWORD. */
- asm ("cmpbge %1, %2, %0" : "=r" (ge) : "r" (charmask), "r" (longword));
-
- /* Set bits in LE if bytes in CHARMASK are <= bytes in LONGWORD. */
- asm ("cmpbge %2, %1, %0" : "=r" (le) : "r" (charmask), "r" (longword));
-
- /* Bytes that are both <= and >= are == to C. */
- if (ge & le)
- {
- /* Which of the bytes was the C? */
-
- unsigned char *cp = (unsigned char *) (longword_ptr - 1);
- int i;
-
- for (i = 0; i < 7; i++)
- if (cp[i] == c)
- return &cp[i];
- return &cp[7];
- }
-
- if (x == (size_t)0)
- break;
- }
-
- return NULL;
-}