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Diffstat (limited to 'sysdeps/tile/tilegx/strrchr.c')
-rw-r--r--sysdeps/tile/tilegx/strrchr.c68
1 files changed, 0 insertions, 68 deletions
diff --git a/sysdeps/tile/tilegx/strrchr.c b/sysdeps/tile/tilegx/strrchr.c
deleted file mode 100644
index 42e8496da9..0000000000
--- a/sysdeps/tile/tilegx/strrchr.c
+++ /dev/null
@@ -1,68 +0,0 @@
-/* Copyright (C) 2011-2016 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
-
- The GNU C 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 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library. If not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <string.h>
-#include <stdint.h>
-#include "string-endian.h"
-
-char *
-strrchr (const char *s, int c)
-{
- /* Get an aligned pointer. */
- const uintptr_t s_int = (uintptr_t) s;
- const uint64_t *p = (const uint64_t *) (s_int & -8);
-
- /* Create eight copies of the byte for which we are looking. */
- const uint64_t goal = copy_byte(c);
-
- /* Read the first aligned word, but force bytes before the string to
- match neither zero nor goal (we make sure the high bit of each byte
- is 1, and the low 7 bits are all the opposite of the goal byte). */
- const uint64_t before_mask = MASK (s_int);
- uint64_t v = (*p | before_mask) ^ (goal & __insn_v1shrui (before_mask, 1));
- const char *found = NULL;
- uint64_t zero_matches, goal_matches;
- while (1)
- {
- /* Look for a terminating '\0'. */
- zero_matches = __insn_v1cmpeqi (v, 0);
-
- /* Look for the goal byte. */
- goal_matches = __insn_v1cmpeq (v, goal);
-
- /* If we found the goal, record the last offset. */
- if (__builtin_expect (goal_matches != 0, 0))
- {
- if (__builtin_expect (zero_matches != 0, 0))
- {
- /* Clear any goal after the first zero. */
- int first_nul = CFZ (zero_matches);
- goal_matches &= NULMASK (first_nul);
- }
- if (__builtin_expect (goal_matches != 0, 1))
- found = ((char *) p) + 7 - (REVCZ (goal_matches) >> 3);
- }
-
- if (__builtin_expect (zero_matches != 0, 0))
- return (char *) found;
-
- v = *++p;
- }
-}
-weak_alias (strrchr, rindex)
-libc_hidden_builtin_def (strrchr)