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_o(op,func,mod,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 mod " %lld = %lld (should be %lld)\n", \
31 trial, (int64_t) (a), (int64_t) b, c, r); \
36 #define test(op,func,a,b,ao_a,ao_b) test_o(op,func,"",a,b,ao_a,ao_b)
38 #define test_a(op,func,a,b,ao_a,ao_b) do { \
40 test_o(op,func,"_a",a,b,&ao_r,ao_b); \
43 #define test_b(op,func,a,b,ao_a,ao_b) do { \
45 test_o(op,func,"_b",a,b,ao_a,&ao_r); \
48 #define test_x(op,func,a,b,ao_a,ao_b) do { \
50 test_o(op,func,"_xa",a,a,&ao_r,&ao_r); \
52 test_o(op,func,"_xb",b,b,&ao_r,&ao_r); \
56 do_test(int trial, int64_t a, int64_t b)
59 ao_int64_t ao_a, ao_b, ao_r;
61 ao_int64_init64(&ao_a, a >> 32, a);
62 ao_int64_init64(&ao_b, b >> 32, b);
64 test(+, ao_plus64, a, b, &ao_a, &ao_b);
65 test_a(+, ao_plus64, a, b, &ao_a, &ao_b);
66 test_b(+, ao_plus64, a, b, &ao_a, &ao_b);
67 test_x(+, ao_plus64, a, b, &ao_a, &ao_b);
68 test(*, ao_mul64_32_32,(int64_t) (int32_t) a, (int32_t) b, (int32_t) a, (int32_t) b);
69 test(*, ao_mul64, a, b, &ao_a, &ao_b);
70 test_a(*, ao_mul64, a, b, &ao_a, &ao_b);
71 test_b(*, ao_mul64, a, b, &ao_a, &ao_b);
72 test_x(*, ao_mul64, a, b, &ao_a, &ao_b);
73 test(*, ao_mul64_64_16, a, (uint16_t) b, &ao_a, (uint16_t) b);
74 test_a(*, ao_mul64_64_16, a, (uint16_t) b, &ao_a, (uint16_t) b);
75 test(>>, ao_rshift64, a, (uint8_t) b & 0x3f, &ao_a, (uint8_t) b & 0x3f);
76 test_a(>>, ao_rshift64, a, (uint8_t) b & 0x3f, &ao_a, (uint8_t) b & 0x3f);
77 test(<<, ao_lshift64, a, (uint8_t) b & 0x3f, &ao_a, (uint8_t) b & 0x3f);
78 test_a(<<, ao_lshift64, a, (uint8_t) b & 0x3f, &ao_a, (uint8_t) b & 0x3f);
81 #define TESTS 10000000
86 return (int64_t) random() + ((int64_t) random() << 31) /* + ((int64_t) random() << 33) */;
90 main (int argc, char **argv)
95 start = atoi(argv[1]);
99 for (i = 0; i < TESTS; i++) {
100 int64_t a = random64();
101 int64_t b = random64();