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1 //===-- floatunditf_test.c - Test __floatunditf ---------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file tests __floatunditf for the compiler_rt library.
12 //===----------------------------------------------------------------------===//
19 #if __LDBL_MANT_DIG__ == 113
23 // Returns: long integer converted to long double
25 COMPILER_RT_ABI
long double __floatunditf(unsigned long long a
);
27 int test__floatunditf(unsigned long long a
, uint64_t expectedHi
, uint64_t expectedLo
)
29 long double x
= __floatunditf(a
);
30 int ret
= compareResultLD(x
, expectedHi
, expectedLo
);
33 printf("error in __floatunditf(%Lu) = %.20Lf, "
34 "expected %.20Lf\n", a
, x
, fromRep128(expectedHi
, expectedLo
));
38 char assumption_1
[sizeof(long double) * CHAR_BIT
== 128] = {0};
44 #if __LDBL_MANT_DIG__ == 113
45 if (test__floatunditf(0xffffffffffffffffULL
, UINT64_C(0x403effffffffffff), UINT64_C(0xfffe000000000000)))
47 if (test__floatunditf(0xfffffffffffffffeULL
, UINT64_C(0x403effffffffffff), UINT64_C(0xfffc000000000000)))
49 if (test__floatunditf(0x8000000000000000ULL
, UINT64_C(0x403e000000000000), UINT64_C(0x0)))
51 if (test__floatunditf(0x7fffffffffffffffULL
, UINT64_C(0x403dffffffffffff), UINT64_C(0xfffc000000000000)))
53 if (test__floatunditf(0x123456789abcdef1ULL
, UINT64_C(0x403b23456789abcd), UINT64_C(0xef10000000000000)))
55 if (test__floatunditf(0x2ULL
, UINT64_C(0x4000000000000000), UINT64_C(0x0)))
57 if (test__floatunditf(0x1ULL
, UINT64_C(0x3fff000000000000), UINT64_C(0x0)))
59 if (test__floatunditf(0x0ULL
, UINT64_C(0x0), UINT64_C(0x0)))