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
|
/* llrintf(), sparc32 v9 vis3 version.
Copyright (C) 2012-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by David S. Miller <davem@davemloft.net>, 2012.
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>
/* VIS instructions are used to facilitate the formation of
easier constants, and the propagation of the sign bit. */
#define TWO_TWENTYTHREE 0x4b000000 /* 2**23 */
#define ZERO %f10 /* 0.0 */
#define SIGN_BIT %f12 /* -0.0 */
ENTRY (__llrintf_vis3)
movwtos %o0, %f1
sethi %hi(TWO_TWENTYTHREE), %o2
fzeros ZERO
fnegs ZERO, SIGN_BIT
movwtos %o2, %f16
fabss %f1, %f14
fcmps %fcc3, %f14, %f16
fmovsuge %fcc3, ZERO, %f16
fands %f1, SIGN_BIT, SIGN_BIT
fors %f16, SIGN_BIT, %f16
fadds %f1, %f16, %f5
fsubs %f5, %f16, %f0
fabss %f0, %f0
fors %f0, SIGN_BIT, %f0
fstox %f0, %f4
movstouw %f4, %o0
retl
movstouw %f5, %o1
END (__llrintf_vis3)
|
