2 * Copyright © 2013 Keith Packard <keithp@keithp.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
25 #define test(op,func,a,b,ao_a,ao_b) do { \
27 func(&ao_r, ao_a, ao_b); \
28 c = ao_cast64(&ao_r); \
30 printf ("trial %4d: %lld " #func " %lld = %lld (should be %lld)\n", \
31 trial, (int64_t) (a), (int64_t) b, c, r); \
38 do_test(int trial, int64_t a, int64_t b)
41 ao_int64_t ao_a, ao_b, ao_r;
43 ao_int64_init64(&ao_a, a >> 32, a);
44 ao_int64_init64(&ao_b, b >> 32, b);
46 test(+, ao_plus64, a, b, &ao_a, &ao_b);
47 test(*, ao_mul64,(int64_t) (int32_t) a, (int32_t) b, (int32_t) a, (int32_t) b);
48 test(>>, ao_rshift64, a, (uint8_t) b & 0x3f, &ao_a, (uint8_t) b & 0x3f);
49 test(<<, ao_lshift64, a, (uint8_t) b & 0x3f, &ao_a, (uint8_t) b & 0x3f);
50 test(*, ao_mul64_16, a, (uint16_t) b, &ao_a, (uint16_t) b);
53 #define TESTS 10000000
58 return (int64_t) random() + ((int64_t) random() << 31) /* + ((int64_t) random() << 33) */;
62 main (int argc, char **argv)
67 start = atoi(argv[1]);
71 for (i = 0; i < TESTS; i++) {
72 int64_t a = random64();
73 int64_t b = random64();