1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
// RUN: %clang_builtins %s %librt -o %t && %run %t
//===-- fixunstfti_test.c - Test __fixunstfti -----------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file tests __fixunstfti for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#include <stdio.h>
#if __LDBL_MANT_DIG__ == 113
#include "fp_test.h"
#include "int_lib.h"
// Returns: convert a to a unsigned long long, rounding toward zero.
// Negative values all become zero.
// Assumption: long double is a 128 bit floating point type
// tu_int is a 128 bit integral type
// value in long double is representable in tu_int or is negative
// (no range checking performed)
COMPILER_RT_ABI tu_int __fixunstfti(long double a);
int test__fixunstfti(long double a, tu_int expected)
{
tu_int x = __fixunstfti(a);
if (x != expected)
{
twords xt;
xt.all = x;
twords expectedt;
expectedt.all = expected;
printf("error in __fixunstfti(%.20Lf) = 0x%.16llX%.16llX, "
"expected 0x%.16llX%.16llX\n",
a, xt.s.high, xt.s.low, expectedt.s.high, expectedt.s.low);
}
return x != expected;
}
char assumption_1[sizeof(tu_int) == 4*sizeof(su_int)] = {0};
char assumption_2[sizeof(tu_int)*CHAR_BIT == 128] = {0};
char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0};
#endif
int main()
{
#if __LDBL_MANT_DIG__ == 113
if (test__fixunstfti(makeInf128(), make_ti(0xffffffffffffffffLL,
0xffffffffffffffffLL)))
return 1;
if (test__fixunstfti(0.0, 0))
return 1;
if (test__fixunstfti(0.5, 0))
return 1;
if (test__fixunstfti(0.99, 0))
return 1;
if (test__fixunstfti(1.0, 1))
return 1;
if (test__fixunstfti(1.5, 1))
return 1;
if (test__fixunstfti(1.99, 1))
return 1;
if (test__fixunstfti(2.0, 2))
return 1;
if (test__fixunstfti(2.01, 2))
return 1;
if (test__fixunstfti(-0.01, 0))
return 1;
if (test__fixunstfti(-0.99, 0))
return 1;
if (test__fixunstfti(0x1.p+128, make_ti(0xffffffffffffffffLL,
0xffffffffffffffffLL)))
return 1;
if (test__fixunstfti(0x1.FFFFFEp+126, make_ti(0x7fffff8000000000LL, 0x0)))
return 1;
if (test__fixunstfti(0x1.FFFFFEp+127, make_ti(0xffffff0000000000LL, 0x0)))
return 1;
if (test__fixunstfti(0x1.FFFFFEp+128, make_ti(0xffffffffffffffffLL,
0xffffffffffffffffLL)))
return 1;
if (test__fixunstfti(0x1.FFFFFEp+129, make_ti(0xffffffffffffffffLL,
0xffffffffffffffffLL)))
return 1;
#else
printf("skipped\n");
#endif
return 0;
}
|
