letf2_test.c revision 2d1fdb26e458c4ddc04155c1d421bced3ba90cd0 
1//===------------ letf2_test.c - Test __letf2------------------------------===//
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 __letf2 for the compiler_rt library.
11//
12//===----------------------------------------------------------------------===//
13
14#include <stdio.h>
15
16#if __LP64__ && __LDBL_MANT_DIG__ == 113
17
18#include "fp_test.h"
19
20int __letf2(long double a, long double b);
21
22int test__letf2(long double a, long double b, enum EXPECTED_RESULT expected)
23{
24    int x = __letf2(a, b);
25    int ret = compareResultCMP(x, expected);
26
27    if (ret){
28        printf("error in test__letf2(%.20Lf, %.20Lf) = %d, "
29               "expected %s\n", a, b, x, expectedStr(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 __LP64__ && __LDBL_MANT_DIG__ == 113
41    // NaN
42    if (test__letf2(makeQNaN128(),
43                    0x1.234567890abcdef1234567890abcp+3L,
44                    GREATER_0))
45        return 1;
46    // <
47    // exp
48    if (test__letf2(0x1.234567890abcdef1234567890abcp-3L,
49                    0x1.234567890abcdef1234567890abcp+3L,
50                    LESS_EQUAL_0))
51        return 1;
52    // mantissa
53    if (test__letf2(0x1.234567890abcdef1234567890abcp+3L,
54                    0x1.334567890abcdef1234567890abcp+3L,
55                    LESS_EQUAL_0))
56        return 1;
57    // sign
58    if (test__letf2(-0x1.234567890abcdef1234567890abcp+3L,
59                    0x1.234567890abcdef1234567890abcp+3L,
60                    LESS_EQUAL_0))
61        return 1;
62    // ==
63    if (test__letf2(0x1.234567890abcdef1234567890abcp+3L,
64                    0x1.234567890abcdef1234567890abcp+3L,
65                    LESS_EQUAL_0))
66        return 1;
67    // >
68    // exp
69    if (test__letf2(0x1.234567890abcdef1234567890abcp+3L,
70                    0x1.234567890abcdef1234567890abcp-3L,
71                    GREATER_0))
72        return 1;
73    // mantissa
74    if (test__letf2(0x1.334567890abcdef1234567890abcp+3L,
75                    0x1.234567890abcdef1234567890abcp+3L,
76                    GREATER_0))
77        return 1;
78    // sign
79    if (test__letf2(0x1.234567890abcdef1234567890abcp+3L,
80                    -0x1.234567890abcdef1234567890abcp+3L,
81                    GREATER_0))
82        return 1;
83
84#else
85    printf("skipped\n");
86
87#endif
88    return 0;
89}
90