diff options
Diffstat (limited to 'tests/unit/test-int128.c')
| -rw-r--r-- | tests/unit/test-int128.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/tests/unit/test-int128.c b/tests/unit/test-int128.c index b86a3c76e6..25db2455e8 100644 --- a/tests/unit/test-int128.c +++ b/tests/unit/test-int128.c @@ -206,6 +206,55 @@ static void test_rshift(void) test_rshift_one(0xFFFE8000U, 0, 0xFFFFFFFFFFFFFFFEULL, 0x8000000000000000ULL); } +static void __attribute__((__noinline__)) ATTRIBUTE_NOCLONE +test_urshift_one(uint32_t x, int n, uint64_t h, uint64_t l) +{ + Int128 a = expand(x); + Int128 r = int128_urshift(a, n); + g_assert_cmpuint(int128_getlo(r), ==, l); + g_assert_cmpuint(int128_gethi(r), ==, h); +} + +static void test_urshift(void) +{ + test_urshift_one(0x00010000U, 64, 0x0000000000000000ULL, + 0x0000000000000001ULL); + test_urshift_one(0x80010000U, 64, 0x0000000000000000ULL, + 0x8000000000000001ULL); + test_urshift_one(0x7FFE0000U, 64, 0x0000000000000000ULL, + 0x7FFFFFFFFFFFFFFEULL); + test_urshift_one(0xFFFE0000U, 64, 0x0000000000000000ULL, + 0xFFFFFFFFFFFFFFFEULL); + test_urshift_one(0x00010000U, 60, 0x0000000000000000ULL, + 0x0000000000000010ULL); + test_urshift_one(0x80010000U, 60, 0x0000000000000008ULL, + 0x0000000000000010ULL); + test_urshift_one(0x00018000U, 60, 0x0000000000000000ULL, + 0x0000000000000018ULL); + test_urshift_one(0x80018000U, 60, 0x0000000000000008ULL, + 0x0000000000000018ULL); + test_urshift_one(0x7FFE0000U, 60, 0x0000000000000007ULL, + 0xFFFFFFFFFFFFFFE0ULL); + test_urshift_one(0xFFFE0000U, 60, 0x000000000000000FULL, + 0xFFFFFFFFFFFFFFE0ULL); + test_urshift_one(0x7FFE8000U, 60, 0x0000000000000007ULL, + 0xFFFFFFFFFFFFFFE8ULL); + test_urshift_one(0xFFFE8000U, 60, 0x000000000000000FULL, + 0xFFFFFFFFFFFFFFE8ULL); + test_urshift_one(0x00018000U, 0, 0x0000000000000001ULL, + 0x8000000000000000ULL); + test_urshift_one(0x80018000U, 0, 0x8000000000000001ULL, + 0x8000000000000000ULL); + test_urshift_one(0x7FFE0000U, 0, 0x7FFFFFFFFFFFFFFEULL, + 0x0000000000000000ULL); + test_urshift_one(0xFFFE0000U, 0, 0xFFFFFFFFFFFFFFFEULL, + 0x0000000000000000ULL); + test_urshift_one(0x7FFE8000U, 0, 0x7FFFFFFFFFFFFFFEULL, + 0x8000000000000000ULL); + test_urshift_one(0xFFFE8000U, 0, 0xFFFFFFFFFFFFFFFEULL, + 0x8000000000000000ULL); +} + int main(int argc, char **argv) { g_test_init(&argc, &argv, NULL); @@ -219,5 +268,6 @@ int main(int argc, char **argv) g_test_add_func("/int128/int128_ge", test_ge); g_test_add_func("/int128/int128_gt", test_gt); g_test_add_func("/int128/int128_rshift", test_rshift); + g_test_add_func("/int128/int128_urshift", test_urshift); return g_test_run(); } |