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
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
// RUN: %clang_builtins %s %librt -o %t && %run %t
//===-- floattisf_test.c - Test __floattisf -------------------------------===//
//
// 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 __floattisf for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#include "int_lib.h"
#include <float.h>
#include <stdio.h>
#ifdef CRT_HAS_128BIT
// Returns: convert a to a float, rounding toward even.
// Assumption: float is a IEEE 32 bit floating point type
// ti_int is a 64 bit integral type
// seee eeee emmm mmmm mmmm mmmm mmmm mmmm
COMPILER_RT_ABI float __floattisf(ti_int a);
int test__floattisf(ti_int a, float expected)
{
float x = __floattisf(a);
if (x != expected)
{
twords at;
at.all = a;
printf("error in __floattisf(0x%.16llX%.16llX) = %a, expected %a\n",
at.s.high, at.s.low, x, expected);
}
return x != expected;
}
char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0};
char assumption_2[sizeof(ti_int)*CHAR_BIT == 128] = {0};
char assumption_3[sizeof(float)*CHAR_BIT == 32] = {0};
#endif
int main()
{
#ifdef CRT_HAS_128BIT
if (test__floattisf(0, 0.0F))
return 1;
if (test__floattisf(1, 1.0F))
return 1;
if (test__floattisf(2, 2.0F))
return 1;
if (test__floattisf(-1, -1.0F))
return 1;
if (test__floattisf(-2, -2.0F))
return 1;
if (test__floattisf(0x7FFFFF8000000000LL, 0x1.FFFFFEp+62F))
return 1;
if (test__floattisf(0x7FFFFF0000000000LL, 0x1.FFFFFCp+62F))
return 1;
if (test__floattisf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x8000008000000000LL),
-0x1.FFFFFEp+62F))
return 1;
if (test__floattisf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x8000010000000000LL),
-0x1.FFFFFCp+62F))
return 1;
if (test__floattisf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x8000000000000000LL),
-0x1.000000p+63F))
return 1;
if (test__floattisf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x8000000000000001LL),
-0x1.000000p+63F))
return 1;
if (test__floattisf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50F))
return 1;
if (test__floattisf(0x0007FB72EA000000LL, 0x1.FEDCBAp+50F))
return 1;
if (test__floattisf(0x0007FB72EB000000LL, 0x1.FEDCBAp+50F))
return 1;
if (test__floattisf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAp+50F))
return 1;
if (test__floattisf(0x0007FB72EC000000LL, 0x1.FEDCBCp+50F))
return 1;
if (test__floattisf(0x0007FB72E8000001LL, 0x1.FEDCBAp+50F))
return 1;
if (test__floattisf(0x0007FB72E6000000LL, 0x1.FEDCBAp+50F))
return 1;
if (test__floattisf(0x0007FB72E7000000LL, 0x1.FEDCBAp+50F))
return 1;
if (test__floattisf(0x0007FB72E7FFFFFFLL, 0x1.FEDCBAp+50F))
return 1;
if (test__floattisf(0x0007FB72E4000001LL, 0x1.FEDCBAp+50F))
return 1;
if (test__floattisf(0x0007FB72E4000000LL, 0x1.FEDCB8p+50F))
return 1;
if (test__floattisf(make_ti(0x0007FB72E8000000LL, 0), 0x1.FEDCBAp+114F))
return 1;
if (test__floattisf(make_ti(0x0007FB72EA000000LL, 0), 0x1.FEDCBAp+114F))
return 1;
if (test__floattisf(make_ti(0x0007FB72EB000000LL, 0), 0x1.FEDCBAp+114F))
return 1;
if (test__floattisf(make_ti(0x0007FB72EBFFFFFFLL, 0), 0x1.FEDCBAp+114F))
return 1;
if (test__floattisf(make_ti(0x0007FB72EC000000LL, 0), 0x1.FEDCBCp+114F))
return 1;
if (test__floattisf(make_ti(0x0007FB72E8000001LL, 0), 0x1.FEDCBAp+114F))
return 1;
if (test__floattisf(make_ti(0x0007FB72E6000000LL, 0), 0x1.FEDCBAp+114F))
return 1;
if (test__floattisf(make_ti(0x0007FB72E7000000LL, 0), 0x1.FEDCBAp+114F))
return 1;
if (test__floattisf(make_ti(0x0007FB72E7FFFFFFLL, 0), 0x1.FEDCBAp+114F))
return 1;
if (test__floattisf(make_ti(0x0007FB72E4000001LL, 0), 0x1.FEDCBAp+114F))
return 1;
if (test__floattisf(make_ti(0x0007FB72E4000000LL, 0), 0x1.FEDCB8p+114F))
return 1;
#else
printf("skipped\n");
#endif
return 0;
}
|
