Blame sysdeps/alpha/alphaev67/stpcpy.S

Packit 6c4009
/* Copyright (C) 2000-2018 Free Software Foundation, Inc.
Packit 6c4009
   This file is part of the GNU C Library.
Packit 6c4009
   Contributed by Richard Henderson <rth@redhat.com>.
Packit 6c4009
Packit 6c4009
   The GNU C Library is free software; you can redistribute it and/or
Packit 6c4009
   modify it under the terms of the GNU Lesser General Public
Packit 6c4009
   License as published by the Free Software Foundation; either
Packit 6c4009
   version 2.1 of the License, or (at your option) any later version.
Packit 6c4009
Packit 6c4009
   The GNU C Library is distributed in the hope that it will be useful,
Packit 6c4009
   but WITHOUT ANY WARRANTY; without even the implied warranty of
Packit 6c4009
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Packit 6c4009
   Lesser General Public License for more details.
Packit 6c4009
Packit 6c4009
   You should have received a copy of the GNU Lesser General Public
Packit 6c4009
   License along with the GNU C Library.  If not, see
Packit 6c4009
   <http://www.gnu.org/licenses/>.  */
Packit 6c4009
Packit 6c4009
/*  Copy SRC to DEST returning the address of the terminating 0 in DEST.  */
Packit 6c4009
Packit 6c4009
#include <sysdep.h>
Packit 6c4009
Packit 6c4009
	.arch ev6
Packit 6c4009
	.set noreorder
Packit 6c4009
	.set noat
Packit 6c4009
	.text
Packit 6c4009
Packit 6c4009
ENTRY(__stpcpy)
Packit 6c4009
	ldgp	gp, 0(pv)
Packit 6c4009
#ifdef PROF
Packit 6c4009
	lda	AT, _mcount
Packit 6c4009
	jsr	AT, (AT), _mcount
Packit 6c4009
#endif
Packit 6c4009
	.prologue 1
Packit 6c4009
Packit 6c4009
	.align 4
Packit 6c4009
	mov	a0, v0
Packit 6c4009
	nop
Packit 6c4009
	jsr	t9, __stxcpy
Packit 6c4009
Packit 6c4009
        # t8  = bitmask (with one bit set) indicating the last byte written
Packit 6c4009
        # a0  = unaligned address of the last *word* written
Packit 6c4009
Packit 6c4009
	cttz	t8, t8
Packit 6c4009
	andnot	a0, 7, a0
Packit 6c4009
        addq    a0, t8, v0
Packit 6c4009
	ret
Packit 6c4009
Packit 6c4009
	END(__stpcpy)
Packit 6c4009
Packit 6c4009
weak_alias (__stpcpy, stpcpy)
Packit 6c4009
libc_hidden_def (__stpcpy)
Packit 6c4009
libc_hidden_builtin_def (stpcpy)