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