Peter Maydell | 3464700 | 2013-06-28 12:40:32 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Test bitops routines |
| 3 | * |
| 4 | * This work is licensed under the terms of the GNU LGPL, version 2 or later. |
| 5 | * See the COPYING.LIB file in the top-level directory. |
| 6 | * |
| 7 | */ |
| 8 | |
Eduardo Habkost | a5ebc0e | 2014-09-26 16:46:02 -0300 | [diff] [blame] | 9 | #include "qemu/osdep.h" |
Peter Maydell | 3464700 | 2013-06-28 12:40:32 +0100 | [diff] [blame] | 10 | #include "qemu/bitops.h" |
| 11 | |
| 12 | typedef struct { |
| 13 | uint32_t value; |
| 14 | int start; |
| 15 | int length; |
| 16 | int32_t result; |
| 17 | } S32Test; |
| 18 | |
| 19 | typedef struct { |
| 20 | uint64_t value; |
| 21 | int start; |
| 22 | int length; |
| 23 | int64_t result; |
| 24 | } S64Test; |
| 25 | |
| 26 | static const S32Test test_s32_data[] = { |
| 27 | { 0x38463983, 4, 4, -8 }, |
| 28 | { 0x38463983, 12, 8, 0x63 }, |
| 29 | { 0x38463983, 0, 32, 0x38463983 }, |
| 30 | }; |
| 31 | |
| 32 | static const S64Test test_s64_data[] = { |
Stefan Hajnoczi | 5cb6be2 | 2013-11-05 17:42:48 +0100 | [diff] [blame] | 33 | { 0x8459826734967223ULL, 60, 4, -8 }, |
| 34 | { 0x8459826734967223ULL, 0, 64, 0x8459826734967223LL }, |
Peter Maydell | 3464700 | 2013-06-28 12:40:32 +0100 | [diff] [blame] | 35 | }; |
| 36 | |
| 37 | static void test_sextract32(void) |
| 38 | { |
| 39 | int i; |
| 40 | |
| 41 | for (i = 0; i < ARRAY_SIZE(test_s32_data); i++) { |
| 42 | const S32Test *test = &test_s32_data[i]; |
| 43 | int32_t r = sextract32(test->value, test->start, test->length); |
| 44 | |
| 45 | g_assert_cmpint(r, ==, test->result); |
| 46 | } |
| 47 | } |
| 48 | |
| 49 | static void test_sextract64(void) |
| 50 | { |
| 51 | int i; |
| 52 | |
| 53 | for (i = 0; i < ARRAY_SIZE(test_s32_data); i++) { |
| 54 | const S32Test *test = &test_s32_data[i]; |
| 55 | int64_t r = sextract64(test->value, test->start, test->length); |
| 56 | |
| 57 | g_assert_cmpint(r, ==, test->result); |
| 58 | } |
| 59 | |
| 60 | for (i = 0; i < ARRAY_SIZE(test_s64_data); i++) { |
| 61 | const S64Test *test = &test_s64_data[i]; |
| 62 | int64_t r = sextract64(test->value, test->start, test->length); |
| 63 | |
| 64 | g_assert_cmpint(r, ==, test->result); |
| 65 | } |
| 66 | } |
| 67 | |
Peter Maydell | b355438 | 2016-06-17 15:23:45 +0100 | [diff] [blame] | 68 | typedef struct { |
| 69 | uint32_t unshuffled; |
| 70 | uint32_t shuffled; |
| 71 | } Shuffle32Test; |
| 72 | |
| 73 | typedef struct { |
| 74 | uint64_t unshuffled; |
| 75 | uint64_t shuffled; |
| 76 | } Shuffle64Test; |
| 77 | |
| 78 | static const Shuffle32Test test_shuffle32_data[] = { |
| 79 | { 0x0000FFFF, 0x55555555 }, |
| 80 | { 0x000081C5, 0x40015011 }, |
| 81 | }; |
| 82 | |
| 83 | static const Shuffle64Test test_shuffle64_data[] = { |
| 84 | { 0x00000000FFFFFFFFULL, 0x5555555555555555ULL }, |
| 85 | { 0x00000000493AB02CULL, 0x1041054445000450ULL }, |
| 86 | }; |
| 87 | |
| 88 | static void test_half_shuffle32(void) |
| 89 | { |
| 90 | int i; |
| 91 | |
| 92 | for (i = 0; i < ARRAY_SIZE(test_shuffle32_data); i++) { |
| 93 | const Shuffle32Test *test = &test_shuffle32_data[i]; |
| 94 | uint32_t r = half_shuffle32(test->unshuffled); |
| 95 | |
| 96 | g_assert_cmpint(r, ==, test->shuffled); |
| 97 | } |
| 98 | } |
| 99 | |
| 100 | static void test_half_shuffle64(void) |
| 101 | { |
| 102 | int i; |
| 103 | |
| 104 | for (i = 0; i < ARRAY_SIZE(test_shuffle64_data); i++) { |
| 105 | const Shuffle64Test *test = &test_shuffle64_data[i]; |
| 106 | uint64_t r = half_shuffle64(test->unshuffled); |
| 107 | |
| 108 | g_assert_cmpint(r, ==, test->shuffled); |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | static void test_half_unshuffle32(void) |
| 113 | { |
| 114 | int i; |
| 115 | |
| 116 | for (i = 0; i < ARRAY_SIZE(test_shuffle32_data); i++) { |
| 117 | const Shuffle32Test *test = &test_shuffle32_data[i]; |
| 118 | uint32_t r = half_unshuffle32(test->shuffled); |
| 119 | |
| 120 | g_assert_cmpint(r, ==, test->unshuffled); |
| 121 | } |
| 122 | } |
| 123 | |
| 124 | static void test_half_unshuffle64(void) |
| 125 | { |
| 126 | int i; |
| 127 | |
| 128 | for (i = 0; i < ARRAY_SIZE(test_shuffle64_data); i++) { |
| 129 | const Shuffle64Test *test = &test_shuffle64_data[i]; |
| 130 | uint64_t r = half_unshuffle64(test->shuffled); |
| 131 | |
| 132 | g_assert_cmpint(r, ==, test->unshuffled); |
| 133 | } |
| 134 | } |
| 135 | |
Peter Maydell | 3464700 | 2013-06-28 12:40:32 +0100 | [diff] [blame] | 136 | int main(int argc, char **argv) |
| 137 | { |
| 138 | g_test_init(&argc, &argv, NULL); |
| 139 | g_test_add_func("/bitops/sextract32", test_sextract32); |
| 140 | g_test_add_func("/bitops/sextract64", test_sextract64); |
Peter Maydell | b355438 | 2016-06-17 15:23:45 +0100 | [diff] [blame] | 141 | g_test_add_func("/bitops/half_shuffle32", test_half_shuffle32); |
| 142 | g_test_add_func("/bitops/half_shuffle64", test_half_shuffle64); |
| 143 | g_test_add_func("/bitops/half_unshuffle32", test_half_unshuffle32); |
| 144 | g_test_add_func("/bitops/half_unshuffle64", test_half_unshuffle64); |
Peter Maydell | 3464700 | 2013-06-28 12:40:32 +0100 | [diff] [blame] | 145 | return g_test_run(); |
| 146 | } |