mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-03 04:01:43 +08:00
46 lines
1.3 KiB
ArmAsm
46 lines
1.3 KiB
ArmAsm
/* Highly optimized version for x86-64.
|
|
Copyright (C) 1999, 2000, 2002, 2003 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Based on i686 version contributed by Ulrich Drepper
|
|
<drepper@cygnus.com>, 1999.
|
|
|
|
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, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <sysdep.h>
|
|
#include "asm-syntax.h"
|
|
#include "bp-sym.h"
|
|
#include "bp-asm.h"
|
|
|
|
.text
|
|
ENTRY (BP_SYM (strcmp))
|
|
L(oop): movb (%rdi), %al
|
|
cmpb (%rsi), %al
|
|
jne L(neq)
|
|
incq %rdi
|
|
incq %rsi
|
|
testb %al, %al
|
|
jnz L(oop)
|
|
|
|
xorq %rax, %rax
|
|
ret
|
|
|
|
L(neq): movl $1, %eax
|
|
movl $-1, %ecx
|
|
cmovbl %ecx, %eax
|
|
ret
|
|
END (BP_SYM (strcmp))
|
|
libc_hidden_builtin_def (strcmp)
|