about summary refs log tree commit diff
path: root/sysdeps/sparc/sparc64/multiarch/memcpy.S
blob: 36c488672d9dcb085a38edb569403cb0ceed156f (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
/* Multiple versions of memcpy
   Copyright (C) 2010, 2011 Free Software Foundation, Inc.
   Contributed by David S. Miller (davem@davemloft.net)
   This file is part of the GNU C Library.

   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, see
   <http://www.gnu.org/licenses/>.  */

#include <sysdep.h>

#if !defined NOT_IN_libc
	.text
ENTRY(memcpy)
	.type	memcpy, @gnu_indirect_function
# ifdef SHARED
	SETUP_PIC_REG_LEAF(o3, o5)
# endif
	andcc	%o0, HWCAP_SPARC_N2, %g0
	be	1f
	 andcc	%o0, HWCAP_SPARC_BLKINIT, %g0
# ifdef SHARED
	sethi	%gdop_hix22(__memcpy_niagara2), %o1
	xor	%o1, %gdop_lox10(__memcpy_niagara2), %o1
# else
	set	__memcpy_niagara2, %o1
# endif
	ba	10f
	 nop
1:	be	1f
	 andcc	%o0, HWCAP_SPARC_ULTRA3, %g0
# ifdef SHARED
	sethi	%gdop_hix22(__memcpy_niagara1), %o1
	xor	%o1, %gdop_lox10(__memcpy_niagara1), %o1
# else
	set	__memcpy_niagara1, %o1
# endif
	ba	10f
	 nop
1:	be	9f
	 nop
# ifdef SHARED
	sethi	%gdop_hix22(__memcpy_ultra3), %o1
	xor	%o1, %gdop_lox10(__memcpy_ultra3), %o1
# else
	set	__memcpy_ultra3, %o1
# endif
	ba	10f
	 nop
9:
# ifdef SHARED
	sethi	%gdop_hix22(__memcpy_ultra1), %o1
	xor	%o1, %gdop_lox10(__memcpy_ultra1), %o1
# else
	set	__memcpy_ultra1, %o1
# endif
10:
# ifdef SHARED
	add	%o3, %o1, %o1
# endif
	retl
	 mov	%o1, %o0
END(memcpy)

# undef libc_hidden_builtin_def
/* IFUNC doesn't work with the hidden functions in a shared library.  */
# define libc_hidden_builtin_def(name) \
	.globl __GI_memcpy; __GI_memcpy = __memcpy_ultra1

#define memcpy __memcpy_ultra1

#endif

#include "../memcpy.S"