Blame sysdeps/alpha/stpcpy.S

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/* Copyright (C) 1996-2018 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   Contributed by Richard Henderson <rth@tamu.edu>, 1996.
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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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/* Copy a null-terminated string from SRC to DST.  Return a pointer
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   to the null-terminator in the source.  */
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#include <sysdep.h>
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	.text
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ENTRY(__stpcpy)
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	ldgp	gp, 0(pv)
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#ifdef PROF
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	.set noat
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	lda	AT, _mcount
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	jsr	AT, (AT), _mcount
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	.set at
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#endif
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	.prologue 1
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	jsr	t9, __stxcpy	# do the work of the copy
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	and	t8, 0xf0, t2	# binary search for byte offset of the
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	and	t8, 0xcc, t1	# last byte written.
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	and	t8, 0xaa, t0
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	andnot	a0, 7, a0
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	cmovne	t2, 4, t2
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	cmovne	t1, 2, t1
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	cmovne	t0, 1, t0
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	addq	a0, t2, v0
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	addq	t0, t1, t0
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	addq	v0, t0, v0
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	ret
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	END(__stpcpy)
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weak_alias (__stpcpy, stpcpy)
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libc_hidden_def (__stpcpy)
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libc_hidden_builtin_def (stpcpy)