1// RUN: %clang_builtins %s %librt -o %t && %run %t
2// REQUIRES: librt_has_trunctfdf2
3
4#include "int_lib.h"
5#include <stdio.h>
6
7#if __LDBL_MANT_DIG__ == 113
8
9#include "fp_test.h"
10
11COMPILER_RT_ABI double __trunctfdf2(long double a);
12
13int test__trunctfdf2(long double a, uint64_t expected)
14{
15 double x = __trunctfdf2(a);
16 int ret = compareResultD(x, expected);
17
18 if (ret)
19 {
20 printf("error in test__trunctfdf2(%.20Lf) = %lf, "
21 "expected %lf\n", a, x, fromRep64(expected));
22 }
23 return ret;
24}
25
26char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
27
28#endif
29
30int main()
31{
32#if __LDBL_MANT_DIG__ == 113
33 // qNaN
34 if (test__trunctfdf2(makeQNaN128(),
35 UINT64_C(0x7ff8000000000000)))
36 return 1;
37 // NaN
38 if (test__trunctfdf2(makeNaN128(UINT64_C(0x810000000000)),
39 UINT64_C(0x7ff8100000000000)))
40 return 1;
41 // inf
42 if (test__trunctfdf2(makeInf128(),
43 UINT64_C(0x7ff0000000000000)))
44 return 1;
45 // zero
46 if (test__trunctfdf2(0.0L, UINT64_C(0x0)))
47 return 1;
48
49 if (test__trunctfdf2(0x1.af23456789bbaaab347645365cdep+5L,
50 UINT64_C(0x404af23456789bbb)))
51 return 1;
52 if (test__trunctfdf2(0x1.dedafcff354b6ae9758763545432p-9L,
53 UINT64_C(0x3f6dedafcff354b7)))
54 return 1;
55 if (test__trunctfdf2(0x1.2f34dd5f437e849b4baab754cdefp+4534L,
56 UINT64_C(0x7ff0000000000000)))
57 return 1;
58 if (test__trunctfdf2(0x1.edcbff8ad76ab5bf46463233214fp-435L,
59 UINT64_C(0x24cedcbff8ad76ab)))
60 return 1;
61
62#else
63 printf("skipped\n");
64
65#endif
66 return 0;
67}
68