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test: Add tests for conversions between int128 and floats

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These require a newer version of LLVM, past
d6216e2cd1a5e07f8509215ee5422ff5ee358da8 in llvm-project (September
29th).
This commit is contained in:
Martin Storsjö committed 2022-02-09 14:02:20 +02:00
1 parent ee1b52812a
commit 77d293e95f
1 file changed
+37
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test/crt-test.c
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@@ -1715,6 +1715,43 @@ int main(int argc, char* argv[]) {
TEST_FLT((float)ULL(17293822569102704640), 17293822569102704640.0);
TEST_FLT((long double)ULL(17293822569102704640), 17293822569102704640.0);
#ifdef __SIZEOF_INT128__
TEST_INT((__uint128_t)F(4.2), 4);
TEST_INT((__int128_t)F(4.2), 4);
TEST_INT((__uint128_t)F(123456789012345678), 123456789012345680ULL);
TEST_INT((__int128_t)F(123456789012345678), 123456789012345680ULL);
TEST_INT((__int128_t)F(-123456789012345), -123456789012345LL);
TEST_INT((__uint128_t)(float)F(4.2), 4);
TEST_INT((__int128_t)(float)F(4.2), 4);
TEST_INT((__uint128_t)(float)F(274877906944), 274877906944ULL);
TEST_INT((__int128_t)(float)F(274877906944), 274877906944ULL);
TEST_INT((__int128_t)(float)F(-274877906944), -274877906944LL);
TEST_INT((__uint128_t)(long double)F(4.2), 4);
TEST_INT((__int128_t)(long double)F(4.2), 4);
TEST_INT((__uint128_t)(long double)F(274877906944), 274877906944ULL);
TEST_INT((__int128_t)(long double)F(274877906944), 274877906944ULL);
TEST_INT((__int128_t)(long double)F(-274877906944), -274877906944LL);
TEST_FLT((double)(__int128_t)LL(4), 4.0);
TEST_FLT((float)(__int128_t)LL(4), 4.0);
TEST_FLT((long double)(__int128_t)LL(4), 4.0);
TEST_FLT((double)(__int128_t)LL(123456789012345), 123456789012345.0);
TEST_FLT((double)(__int128_t)LL(-123456789012345), -123456789012345.0);
TEST_FLT((float)(__int128_t)LL(274877906944), 274877906944.0);
TEST_FLT((float)(__int128_t)LL(-274877906944), -274877906944.0);
TEST_FLT((long double)(__int128_t)LL(274877906944), 274877906944.0);
TEST_FLT((long double)(__int128_t)LL(-274877906944), -274877906944.0);
TEST_FLT((double)(__uint128_t)ULL(4), 4.0);
TEST_FLT((float)(__uint128_t)ULL(4), 4.0);
TEST_FLT((long double)(__uint128_t)ULL(4), 4.0);
TEST_FLT((double)(__uint128_t)ULL(17293822569102704640), 17293822569102704640.0);
TEST_FLT((float)(__uint128_t)ULL(17293822569102704640), 17293822569102704640.0);
TEST_FLT((long double)(__uint128_t)ULL(17293822569102704640), 17293822569102704640.0);
#endif
#ifdef _WIN32
long value = 0;
__int64 ret;