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
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
|
/******************************** -*- C -*- ****************************
*
* Floating-point miscellanea using GNU lightning
*
***********************************************************************/
/***********************************************************************
*
* Copyright 2000, 2002, 2004 Free Software Foundation, Inc.
* Written by Paolo Bonzini.
*
* This file is part of GNU lightning.
*
* GNU lightning 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, or (at your option)
* any later version.
*
* GNU lightning 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 GNU lightning; see the file COPYING.LESSER; if not, write to the
* Free Software Foundation, 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA.
*
***********************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include "lightning.h"
static jit_insn codeBuffer[300];
static double a;
void
int_test(char *what, jit_code code, double b, double c, double d, double e, double f)
{
a = b; printf("%s\t\t%d ", what, code.iptr ());
a = c; printf("%d ", code.iptr());
a = d; printf("%d ", code.iptr());
a = e; printf("%d ", code.iptr());
a = f; printf("%d\n", code.iptr());
}
int
main()
{
jit_code code;
volatile double x = 0.0;
code.ptr = (char *) codeBuffer;
jit_set_ip(codeBuffer);
jit_leaf(0);
jit_ldi_d(JIT_FPR0, &a);
jit_movi_d(JIT_FPR1, 0.0);
jit_gtr_d(JIT_R0, JIT_FPR0, JIT_FPR1);
jit_ltr_d(JIT_R1, JIT_FPR0, JIT_FPR1);
jit_subr_i(JIT_RET, JIT_R0, JIT_R1); /* [greater] - [less] = -1/0/1 */
jit_ret();
jit_flush_code(codeBuffer, jit_get_ip().ptr);
#ifdef LIGHTNING_DISASSEMBLE
disassemble(stderr, (char *)codeBuffer, jit_get_ip().ptr);
#endif
#ifndef LIGHTNING_CROSS
int_test("compare", code, -2.6, -2.4, 0, 2.4, 2.6);
#endif
#ifdef __GNUC__
jit_set_ip(codeBuffer);
jit_leaf(0);
jit_ldi_d(JIT_FPR0, &a);
jit_movi_d(JIT_FPR1, 0.0);
jit_eqr_d(JIT_R0, JIT_FPR0, JIT_FPR1);
jit_ltgtr_d(JIT_R1, JIT_FPR0, JIT_FPR1);
jit_lshi_i(JIT_R1, JIT_R1, 1);
jit_orr_i(JIT_RET, JIT_R0, JIT_R1);
jit_ret();
jit_flush_code(codeBuffer, jit_get_ip().ptr);
#ifdef LIGHTNING_DISASSEMBLE
disassemble(stderr, (char *)codeBuffer, jit_get_ip().ptr);
#endif
#ifndef LIGHTNING_CROSS
int_test("nans", code, x / x, 1 / (a - a), -1 / (a - a), 0.0, -2.0);
#endif
#else
printf ("nans\t\t1 3 3 0 3\n");
#endif
jit_set_ip(codeBuffer);
jit_leaf(0);
jit_ldi_d(JIT_FPR0, &a);
jit_truncr_d_i(JIT_RET, JIT_FPR0);
jit_ret();
jit_flush_code(codeBuffer, jit_get_ip().ptr);
#ifdef LIGHTNING_DISASSEMBLE
disassemble(stderr, (char *)codeBuffer, jit_get_ip().ptr);
#endif
#ifndef LIGHTNING_CROSS
int_test("trunc", code, -2.6, -2.4, 0, 2.4, 2.6);
int_test("trunc", code, -3, -2, 0, 2, 3);
#endif
jit_set_ip(codeBuffer);
jit_leaf(0);
jit_ldi_d(JIT_FPR0, &a);
jit_ceilr_d_i(JIT_RET, JIT_FPR0);
jit_ret();
jit_flush_code(codeBuffer, jit_get_ip().ptr);
#ifdef LIGHTNING_DISASSEMBLE
disassemble(stderr, (char *)codeBuffer, jit_get_ip().ptr);
#endif
#ifndef LIGHTNING_CROSS
int_test("ceil", code, -2.6, -2.4, 0, 2.4, 2.6);
int_test("ceil", code, -3, -2, 0, 2, 3);
#endif
jit_set_ip(codeBuffer);
jit_leaf(0);
jit_ldi_d(JIT_FPR0, &a);
jit_floorr_d_i(JIT_RET, JIT_FPR0);
jit_ret();
jit_flush_code(codeBuffer, jit_get_ip().ptr);
#ifdef LIGHTNING_DISASSEMBLE
disassemble(stderr, (char *)codeBuffer, jit_get_ip().ptr);
#endif
#ifndef LIGHTNING_CROSS
int_test("floor", code, -2.6, -2.4, 0, 2.4, 2.6);
int_test("floor", code, -3, -2, 0, 2, 3);
#endif
jit_set_ip(codeBuffer);
jit_leaf(0);
jit_ldi_d(JIT_FPR0, &a);
jit_roundr_d_i(JIT_RET, JIT_FPR0);
jit_ret();
jit_flush_code(codeBuffer, jit_get_ip().ptr);
#ifdef LIGHTNING_DISASSEMBLE
disassemble(stderr, (char *)codeBuffer, jit_get_ip().ptr);
#endif
#ifndef LIGHTNING_CROSS
int_test("round", code, -2.6, -2.4, 0, 2.4, 2.6);
int_test("round", code, -3, -2, 0, 2, 3);
#endif
#if 0 && defined JIT_TRANSCENDENTAL
jit_set_ip(codeBuffer);
jit_leaf(0);
jitfp_sti_d(&a,
jitfp_log(
jitfp_exp(jitfp_imm(1.0))
)
);
jit_ret();
jit_flush_code(codeBuffer, jit_get_ip().ptr);
code.vptr();
#ifdef LIGHTNING_DISASSEMBLE
disassemble(stderr, (char *)codeBuffer, jit_get_ip().ptr);
#endif
#ifndef LIGHTNING_CROSS
printf("log e = \t%f\n", a);
#endif
jit_set_ip(codeBuffer);
jit_leaf(0);
jitfp_sti_d(&a,
jitfp_atn(
jitfp_imm(1.732050807657)
)
);
jit_ret();
jit_flush_code(codeBuffer, jit_get_ip().ptr);
code.vptr();
#ifdef LIGHTNING_DISASSEMBLE
disassemble(stderr, (char *)codeBuffer, jit_get_ip().ptr);
#endif
#ifndef LIGHTNING_CROSS
printf("pi = \t%f\n", a*3);
#endif
jit_set_ip(codeBuffer);
jit_leaf(0);
jitfp_sti_d(&a,
jitfp_tan(
jitfp_ldi_d(&a)
)
);
jit_ret();
jit_flush_code(codeBuffer, jit_get_ip().ptr);
code.vptr();
#ifdef LIGHTNING_DISASSEMBLE
disassemble(stderr, (char *)codeBuffer, jit_get_ip().ptr);
#endif
#ifndef LIGHTNING_CROSS
printf("tan^2 pi/3 = \t%f\n", a*a);
#endif
#endif /* JIT_TRANSCEDENTAL */
return (0);
}
|
