diff options
Diffstat (limited to 'sysdeps/tile/tilepro/strlen.c')
-rw-r--r-- | sysdeps/tile/tilepro/strlen.c | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/sysdeps/tile/tilepro/strlen.c b/sysdeps/tile/tilepro/strlen.c deleted file mode 100644 index adad3d8..0000000 --- a/sysdeps/tile/tilepro/strlen.c +++ /dev/null @@ -1,39 +0,0 @@ -/* Copyright (C) 2011-2017 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> - -size_t -strlen (const char *s) -{ - /* Get an aligned pointer. */ - const uintptr_t s_int = (uintptr_t) s; - const uint32_t *p = (const uint32_t *) (s_int & -4); - - /* Read the first word, but force bytes before the string to be nonzero. - This expression works because we know shift counts are taken mod 32. */ - uint32_t v = *p | ((1 << (s_int << 3)) - 1); - - uint32_t bits; - while ((bits = __insn_seqb (v, 0)) == 0) - v = *++p; - - return ((const char *) p) + (__insn_ctz (bits) >> 3) - s; -} -libc_hidden_builtin_def (strlen) |