1//===-- floatunditf_test.c - Test __floatunditf ---------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file tests __floatunditf for the compiler_rt library.
11//
12//===----------------------------------------------------------------------===//
13
14#include "int_lib.h"
15#include <math.h>
16#include <complex.h>
17#include <stdio.h>
18
19#if __LDBL_MANT_DIG__ == 113
20
21#include "fp_test.h"
22
23// Returns: long integer converted to long double
24
25COMPILER_RT_ABI long double __floatunditf(unsigned long long a);
26
27int test__floatunditf(unsigned long long a, uint64_t expectedHi, uint64_t expectedLo)
28{
29    long double x = __floatunditf(a);
30    int ret = compareResultLD(x, expectedHi, expectedLo);
31
32    if (ret)
33        printf("error in __floatunditf(%Lu) = %.20Lf, "
34               "expected %.20Lf\n", a, x, fromRep128(expectedHi, expectedLo));
35    return ret;
36}
37
38char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
39
40#endif
41
42int main()
43{
44#if __LDBL_MANT_DIG__ == 113
45    if (test__floatunditf(0xffffffffffffffffULL, UINT64_C(0x403effffffffffff), UINT64_C(0xfffe000000000000)))
46        return 1;
47    if (test__floatunditf(0xfffffffffffffffeULL, UINT64_C(0x403effffffffffff), UINT64_C(0xfffc000000000000)))
48        return 1;
49    if (test__floatunditf(0x8000000000000000ULL, UINT64_C(0x403e000000000000), UINT64_C(0x0)))
50        return 1;
51    if (test__floatunditf(0x7fffffffffffffffULL, UINT64_C(0x403dffffffffffff), UINT64_C(0xfffc000000000000)))
52        return 1;
53    if (test__floatunditf(0x123456789abcdef1ULL, UINT64_C(0x403b23456789abcd), UINT64_C(0xef10000000000000)))
54        return 1;
55    if (test__floatunditf(0x2ULL, UINT64_C(0x4000000000000000), UINT64_C(0x0)))
56        return 1;
57    if (test__floatunditf(0x1ULL, UINT64_C(0x3fff000000000000), UINT64_C(0x0)))
58        return 1;
59    if (test__floatunditf(0x0ULL, UINT64_C(0x0), UINT64_C(0x0)))
60        return 1;
61
62#else
63    printf("skipped\n");
64
65#endif
66    return 0;
67}
68