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a5544970 | 1 | /* Copyright (C) 2006-2019 Free Software Foundation, Inc. |
d38a64b4 JR |
2 | Contributor: Joern Rennecke <joern.rennecke@embecosm.com> |
3 | on behalf of Synopsys Inc. | |
4 | ||
5 | This file is part of GCC. | |
6 | ||
7 | GCC is free software; you can redistribute it and/or modify it under | |
8 | the terms of the GNU General Public License as published by the Free | |
9 | Software Foundation; either version 3, or (at your option) any later | |
10 | version. | |
11 | ||
12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
16 | ||
17 | Under Section 7 of GPL version 3, you are granted additional | |
18 | permissions described in the GCC Runtime Library Exception, version | |
19 | 3.1, as published by the Free Software Foundation. | |
20 | ||
21 | You should have received a copy of the GNU General Public License and | |
22 | a copy of the GCC Runtime Library Exception along with this program; | |
23 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
24 | <http://www.gnu.org/licenses/>. */ | |
25 | ||
26 | #include "arc-ieee-754.h" | |
27 | ||
28 | #if 0 /* DEBUG */ | |
29 | .global __extendsfdf2 | |
30 | .balign 4 | |
31 | FUNC(__extendsfdf2) | |
32 | __extendsfdf2: | |
33 | push_s blink | |
34 | bl.d __extendsfdf2_c | |
35 | push_s r0 | |
36 | ld_s r2,[sp] | |
37 | st_s r1,[sp] | |
38 | push_s r0 | |
39 | bl.d __extendsfdf2_asm | |
40 | mov_s r0,r2 | |
41 | pop_s r2 | |
42 | pop_s r3 | |
43 | pop_s blink | |
44 | cmp r0,r2 | |
45 | cmp.eq r1,r3 | |
46 | jeq_s [blink] | |
47 | bl abort | |
48 | ENDFUNC(__extendsfdf2) | |
49 | #define __extendsfdf2 __extendsfdf2_asm | |
50 | #endif /* DEBUG */ | |
51 | #if 0 /* ARC600 */ | |
52 | __extendsfdf2: | |
53 | lsr r2,r0,23 | |
54 | tst r2,0xff | |
55 | bic.ne.f r2,0xff | |
56 | beq_s .Linf_nan_denorm_0 | |
57 | .. | |
58 | .Linf_nan_denorm: | |
59 | bbit1 r0,30,.Linf_nan | |
60 | #endif | |
61 | .global __extendsfdf2 | |
62 | .balign 4 | |
63 | FUNC(__extendsfdf2) | |
64 | __extendsfdf2: | |
65 | add.f r1,r0,r0 | |
66 | norm r3,r1 | |
67 | #ifdef __LITTLE_ENDIAN__ | |
68 | lsr_s DBL0H,r1,4 | |
69 | brhs r3,7,.Linf_nan_denorm_0 | |
70 | asl_s DBL0L,r0,29 | |
71 | add_s DBL0H,DBL0H, \ | |
72 | 0x38000000 | |
73 | #else | |
74 | lsr r2,r1,4 | |
75 | brhs r3,7,.Linf_nan_denorm_0 | |
76 | asl_s DBL0L,r1,28 | |
77 | add DBL0H,r2, \ | |
78 | 0x38000000 | |
79 | #endif | |
80 | j_s.d [blink] | |
81 | bxor.cs DBL0H,DBL0H,31 | |
82 | .balign 4 | |
83 | .Linf_nan_denorm_0: | |
84 | #ifdef __LITTLE_ENDIAN__ | |
85 | mov_s DBL0H,r0 | |
86 | jeq.d [blink] | |
87 | mov.eq DBL0L,0 | |
88 | #else | |
89 | jeq_s [blink] | |
90 | #endif | |
91 | bmi .Linf_nan | |
92 | asl_s r0,r0,r3 | |
93 | rsub r3,r3,0x380+6 | |
94 | #ifdef __LITTLE_ENDIAN__ | |
95 | asl_s r3,r3,20 | |
96 | lsr DBL0H,r0,9 | |
97 | asl_s DBL0L,r0,23 | |
98 | add_s DBL0H,DBL0H,r3 | |
99 | j_s.d [blink] | |
100 | bxor.cs DBL0H,DBL0H,31 | |
101 | #else | |
102 | asl DBL0L,r0,23 | |
103 | lsr_s DBL0H,r0,9 | |
104 | asl_s r3,r3,20 | |
105 | bxor.cs DBL0H,DBL0H,31 | |
106 | j_s.d [blink] | |
107 | add_l DBL0H,DBL0H,r3 | |
108 | #endif | |
109 | .Linf_nan: | |
110 | #ifdef __LITTLE_ENDIAN__ | |
111 | lsr DBL0H,r0,3 | |
112 | ||
113 | or_s DBL0H,DBL0H,r0 | |
114 | j_s.d [blink] | |
115 | mov_l DBL0L,0 | |
116 | #else | |
117 | lsr r3,r0,3 | |
118 | mov_s DBL0L,0 | |
119 | j_s.d [blink] | |
120 | or_l DBL0H,r0,r3 | |
121 | #endif | |
122 | ENDFUNC(__extendsfdf2) |