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
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
/* Copyright (C) 2006-2015 Free Software Foundation, Inc.
Contributor: Joern Rennecke <joern.rennecke@embecosm.com>
on behalf of Synopsys Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC 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 General Public License
for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include "arc-ieee-754.h"
#if 0 /* DEBUG */
.global __extendsfdf2
.balign 4
FUNC(__extendsfdf2)
__extendsfdf2:
push_s blink
bl.d __extendsfdf2_c
push_s r0
ld_s r2,[sp]
st_s r1,[sp]
push_s r0
bl.d __extendsfdf2_asm
mov_s r0,r2
pop_s r2
pop_s r3
pop_s blink
cmp r0,r2
cmp.eq r1,r3
jeq_s [blink]
bl abort
ENDFUNC(__extendsfdf2)
#define __extendsfdf2 __extendsfdf2_asm
#endif /* DEBUG */
#if 0 /* ARC600 */
__extendsfdf2:
lsr r2,r0,23
tst r2,0xff
bic.ne.f r2,0xff
beq_s .Linf_nan_denorm_0
..
.Linf_nan_denorm:
bbit1 r0,30,.Linf_nan
#endif
.global __extendsfdf2
.balign 4
FUNC(__extendsfdf2)
__extendsfdf2:
add.f r1,r0,r0
norm r3,r1
#ifdef __LITTLE_ENDIAN__
lsr_s DBL0H,r1,4
brhs r3,7,.Linf_nan_denorm_0
asl_s DBL0L,r0,29
add_s DBL0H,DBL0H, \
0x38000000
#else
lsr r2,r1,4
brhs r3,7,.Linf_nan_denorm_0
asl_s DBL0L,r1,28
add DBL0H,r2, \
0x38000000
#endif
j_s.d [blink]
bxor.cs DBL0H,DBL0H,31
.balign 4
.Linf_nan_denorm_0:
#ifdef __LITTLE_ENDIAN__
mov_s DBL0H,r0
jeq.d [blink]
mov.eq DBL0L,0
#else
jeq_s [blink]
#endif
bmi .Linf_nan
asl_s r0,r0,r3
rsub r3,r3,0x380+6
#ifdef __LITTLE_ENDIAN__
asl_s r3,r3,20
lsr DBL0H,r0,9
asl_s DBL0L,r0,23
add_s DBL0H,DBL0H,r3
j_s.d [blink]
bxor.cs DBL0H,DBL0H,31
#else
asl DBL0L,r0,23
lsr_s DBL0H,r0,9
asl_s r3,r3,20
bxor.cs DBL0H,DBL0H,31
j_s.d [blink]
add_l DBL0H,DBL0H,r3
#endif
.Linf_nan:
#ifdef __LITTLE_ENDIAN__
lsr DBL0H,r0,3
or_s DBL0H,DBL0H,r0
j_s.d [blink]
mov_l DBL0L,0
#else
lsr r3,r0,3
mov_s DBL0L,0
j_s.d [blink]
or_l DBL0H,r0,r3
#endif
ENDFUNC(__extendsfdf2)
|
