1 // RUN: %clang_builtins %s %librt -o %t && %run %t
2 // REQUIRES: librt_has_comparetf2
3
4 #include <stdio.h>
5
6 #if __LP64__ && __LDBL_MANT_DIG__ == 113
7
8 #include "fp_test.h"
9
10 int __letf2(long double a, long double b);
11
test__letf2(long double a,long double b,enum EXPECTED_RESULT expected)12 int test__letf2(long double a, long double b, enum EXPECTED_RESULT expected)
13 {
14 int x = __letf2(a, b);
15 int ret = compareResultCMP(x, expected);
16
17 if (ret){
18 printf("error in test__letf2(%.20Lf, %.20Lf) = %d, "
19 "expected %s\n", a, b, x, expectedStr(expected));
20 }
21 return ret;
22 }
23
24 char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
25
26 #endif
27
main()28 int main()
29 {
30 #if __LP64__ && __LDBL_MANT_DIG__ == 113
31 // NaN
32 if (test__letf2(makeQNaN128(),
33 0x1.234567890abcdef1234567890abcp+3L,
34 GREATER_0))
35 return 1;
36 // <
37 // exp
38 if (test__letf2(0x1.234567890abcdef1234567890abcp-3L,
39 0x1.234567890abcdef1234567890abcp+3L,
40 LESS_EQUAL_0))
41 return 1;
42 // mantissa
43 if (test__letf2(0x1.234567890abcdef1234567890abcp+3L,
44 0x1.334567890abcdef1234567890abcp+3L,
45 LESS_EQUAL_0))
46 return 1;
47 // sign
48 if (test__letf2(-0x1.234567890abcdef1234567890abcp+3L,
49 0x1.234567890abcdef1234567890abcp+3L,
50 LESS_EQUAL_0))
51 return 1;
52 // ==
53 if (test__letf2(0x1.234567890abcdef1234567890abcp+3L,
54 0x1.234567890abcdef1234567890abcp+3L,
55 LESS_EQUAL_0))
56 return 1;
57 // >
58 // exp
59 if (test__letf2(0x1.234567890abcdef1234567890abcp+3L,
60 0x1.234567890abcdef1234567890abcp-3L,
61 GREATER_0))
62 return 1;
63 // mantissa
64 if (test__letf2(0x1.334567890abcdef1234567890abcp+3L,
65 0x1.234567890abcdef1234567890abcp+3L,
66 GREATER_0))
67 return 1;
68 // sign
69 if (test__letf2(0x1.234567890abcdef1234567890abcp+3L,
70 -0x1.234567890abcdef1234567890abcp+3L,
71 GREATER_0))
72 return 1;
73
74 #else
75 printf("skipped\n");
76
77 #endif
78 return 0;
79 }
80