1 //===-- floatditf_test.c - Test __floatditf -------------------------------===//
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 __floatditf for the compiler_rt library.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "int_lib.h"
15 #include <math.h>
16 #include <complex.h>
17 #include <stdio.h>
18
19 #if __LDBL_MANT_DIG__ == 113
20
21 #include "fp_test.h"
22
23 // Returns: long integer converted to long double
24
25 COMPILER_RT_ABI long double __floatditf(long long a);
26
test__floatditf(long long a,uint64_t expectedHi,uint64_t expectedLo)27 int test__floatditf(long long a, uint64_t expectedHi, uint64_t expectedLo)
28 {
29 long double x = __floatditf(a);
30 int ret = compareResultLD(x, expectedHi, expectedLo);
31
32 if (ret)
33 printf("error in __floatditf(%Ld) = %.20Lf, "
34 "expected %.20Lf\n", a, x, fromRep128(expectedHi, expectedLo));
35 return ret;
36 }
37
38 char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
39
40 #endif
41
main()42 int main()
43 {
44 #if __LDBL_MANT_DIG__ == 113
45 if (test__floatditf(0x7fffffffffffffff, UINT64_C(0x403dffffffffffff), UINT64_C(0xfffc000000000000)))
46 return 1;
47 if (test__floatditf(0x123456789abcdef1, UINT64_C(0x403b23456789abcd), UINT64_C(0xef10000000000000)))
48 return 1;
49 if (test__floatditf(0x2, UINT64_C(0x4000000000000000), UINT64_C(0x0)))
50 return 1;
51 if (test__floatditf(0x1, UINT64_C(0x3fff000000000000), UINT64_C(0x0)))
52 return 1;
53 if (test__floatditf(0x0, UINT64_C(0x0), UINT64_C(0x0)))
54 return 1;
55 if (test__floatditf(0xffffffffffffffff, UINT64_C(0xbfff000000000000), UINT64_C(0x0)))
56 return 1;
57 if (test__floatditf(0xfffffffffffffffe, UINT64_C(0xc000000000000000), UINT64_C(0x0)))
58 return 1;
59 if (test__floatditf(-0x123456789abcdef1, UINT64_C(0xc03b23456789abcd), UINT64_C(0xef10000000000000)))
60 return 1;
61 if (test__floatditf(0x8000000000000000, UINT64_C(0xc03e000000000000), UINT64_C(0x0)))
62 return 1;
63
64 #else
65 printf("skipped\n");
66
67 #endif
68 return 0;
69 }
70