Blame sysdeps/s390/strcmp-z900.S

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/* strcmp - compare two string.  64 bit S/390 version.
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   This file is part of the GNU C Library.
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   Copyright (C) 2001-2018 Free Software Foundation, Inc.
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   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library; if not, see
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   <http://www.gnu.org/licenses/>.  */
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/* INPUT PARAMETERS
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     %r2 = address of string 1
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     %r3 = address of string 2.  */
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#include <ifunc-strcmp.h>
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#include "sysdep.h"
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#include "asm-syntax.h"
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#if HAVE_STRCMP_Z900_G5
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# if defined __s390x__
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#  define SLGR	slgr
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#  define LGHI	lghi
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# else
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#  define SLGR	slr
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#  define LGHI	lhi
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# endif /* ! defined __s390x__  */
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	.text
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ENTRY(STRCMP_Z900_G5)
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	SLGR   %r0,%r0
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0:	clst  %r2,%r3
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	jo    0b
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	jp    1f
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	jm    2f
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	SLGR  %r2,%r2
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	br    %r14
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1:	LGHI  %r2,1
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	br    %r14
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2:	LGHI  %r2,-1
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	br    %r14
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END(STRCMP_Z900_G5)
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# if ! HAVE_STRCMP_IFUNC
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strong_alias (STRCMP_Z900_G5, strcmp)
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# endif
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# if defined SHARED && IS_IN (libc)
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strong_alias (STRCMP_Z900_G5, __GI_strcmp)
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# endif
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#endif