1 // RUN: %clang_builtins %s %librt -o %t && %run %t
2 // REQUIRES: librt_has_extenddftf2
3 //===--------------- extenddftf2_test.c - Test __extenddftf2 --------------===//
4 //
5 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
6 // See https://llvm.org/LICENSE.txt for license information.
7 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
8 //
9 //===----------------------------------------------------------------------===//
10 //
11 // This file tests __extenddftf2 for the compiler_rt library.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #include "int_lib.h"
16 #include <stdio.h>
17 
18 #if __LDBL_MANT_DIG__ == 113
19 
20 #include "fp_test.h"
21 
22 COMPILER_RT_ABI long double __extenddftf2(double a);
23 
24 int test__extenddftf2(double a, uint64_t expectedHi, uint64_t expectedLo)
25 {
26     long double x = __extenddftf2(a);
27     int ret = compareResultLD(x, expectedHi, expectedLo);
28 
29     if (ret){
30         printf("error in test__extenddftf2(%f) = %.20Lf, "
31                "expected %.20Lf\n", a, x, fromRep128(expectedHi, expectedLo));
32     }
33     return ret;
34 }
35 
36 char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
37 
38 #endif
39 
40 int main()
41 {
42 #if __LDBL_MANT_DIG__ == 113
43     // qNaN
44     if (test__extenddftf2(makeQNaN64(),
45                           UINT64_C(0x7fff800000000000),
46                           UINT64_C(0x0)))
47         return 1;
48     // NaN
49     if (test__extenddftf2(makeNaN64(UINT64_C(0x7100000000000)),
50                           UINT64_C(0x7fff710000000000),
51                           UINT64_C(0x0)))
52         return 1;
53     // inf
54     if (test__extenddftf2(makeInf64(),
55                           UINT64_C(0x7fff000000000000),
56                           UINT64_C(0x0)))
57         return 1;
58     // zero
59     if (test__extenddftf2(0.0, UINT64_C(0x0), UINT64_C(0x0)))
60         return 1;
61 
62     if (test__extenddftf2(0x1.23456789abcdefp+5,
63                           UINT64_C(0x400423456789abcd),
64                           UINT64_C(0xf000000000000000)))
65         return 1;
66     if (test__extenddftf2(0x1.edcba987654321fp-9,
67                           UINT64_C(0x3ff6edcba9876543),
68                           UINT64_C(0x2000000000000000)))
69         return 1;
70     if (test__extenddftf2(0x1.23456789abcdefp+45,
71                           UINT64_C(0x402c23456789abcd),
72                           UINT64_C(0xf000000000000000)))
73         return 1;
74     if (test__extenddftf2(0x1.edcba987654321fp-45,
75                           UINT64_C(0x3fd2edcba9876543),
76                           UINT64_C(0x2000000000000000)))
77         return 1;
78 
79 #else
80     printf("skipped\n");
81 
82 #endif
83     return 0;
84 }
85