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- /* Highly optimized version for x86-64.
- Copyright (C) 1999, 2000, 2002, 2003, 2005 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 "_glibc_inc.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)
- xorl %eax, %eax
- ret
- L(neq): movl $1, %eax
- movl $-1, %ecx
- cmovbl %ecx, %eax
- ret
- END (BP_SYM (strcmp))
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