trunctfsf2_test.c revision 1.1.1.1 
1//===--------------- trunctfsf2_test.c - Test __trunctfsf2 ----------------===//
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 __trunctfsf2 for the compiler_rt library.
11//
12//===----------------------------------------------------------------------===//
13
14#include <stdio.h>
15
16#if __LDBL_MANT_DIG__ == 113
17
18#include "fp_test.h"
19
20float __trunctfsf2(long double a);
21
22int test__trunctfsf2(long double a, uint32_t expected)
23{
24    float x = __trunctfsf2(a);
25    int ret = compareResultF(x, expected);
26
27    if (ret){
28        printf("error in test__trunctfsf2(%.20Lf) = %f, "
29               "expected %f\n", a, x, fromRep32(expected));
30    }
31    return ret;
32}
33
34char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
35
36#endif
37
38int main()
39{
40#if __LDBL_MANT_DIG__ == 113
41    // qNaN
42    if (test__trunctfsf2(makeQNaN128(),
43                         UINT32_C(0x7fc00000)))
44        return 1;
45    // NaN
46    if (test__trunctfsf2(makeNaN128(UINT64_C(0x810000000000)),
47                         UINT32_C(0x7fc08000)))
48        return 1;
49    // inf
50    if (test__trunctfsf2(makeInf128(),
51                         UINT32_C(0x7f800000)))
52        return 1;
53    // zero
54    if (test__trunctfsf2(0.0L, UINT32_C(0x0)))
55        return 1;
56
57    if (test__trunctfsf2(0x1.23a2abb4a2ddee355f36789abcdep+5L,
58                         UINT32_C(0x4211d156)))
59        return 1;
60    if (test__trunctfsf2(0x1.e3d3c45bd3abfd98b76a54cc321fp-9L,
61                         UINT32_C(0x3b71e9e2)))
62        return 1;
63    if (test__trunctfsf2(0x1.234eebb5faa678f4488693abcdefp+4534L,
64                         UINT32_C(0x7f800000)))
65        return 1;
66    if (test__trunctfsf2(0x1.edcba9bb8c76a5a43dd21f334634p-435L,
67                         UINT32_C(0x0)))
68        return 1;
69
70#else
71    printf("skipped\n");
72
73#endif
74    return 0;
75}
76