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
138
139
140
141
142
143
|
// RUN: %clang_builtins %s %librt -o %t && %run %t
// REQUIRES: x86-target-arch
//===-- fixunsxfti_test.c - Test __fixunsxfti -----------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file tests __fixunsxfti for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#include "int_lib.h"
#include <stdio.h>
#if defined(CRT_HAS_128BIT) && HAS_80_BIT_LONG_DOUBLE
// Returns: convert a to a unsigned long long, rounding toward zero.
// Negative values all become zero.
// Assumption: long double is an intel 80 bit floating point type padded with 6 bytes
// tu_int is a 64 bit integral type
// value in long double is representable in tu_int or is negative
// (no range checking performed)
// gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee |
// 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm
COMPILER_RT_ABI tu_int __fixunsxfti(long double a);
int test__fixunsxfti(long double a, tu_int expected)
{
tu_int x = __fixunsxfti(a);
if (x != expected)
{
utwords xt;
xt.all = x;
utwords expectedt;
expectedt.all = expected;
printf("error in __fixunsxfti(%LA) = 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) == 2*sizeof(du_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 defined(CRT_HAS_128BIT) && HAS_80_BIT_LONG_DOUBLE
if (test__fixunsxfti(0.0, 0))
return 1;
if (test__fixunsxfti(0.5, 0))
return 1;
if (test__fixunsxfti(0.99, 0))
return 1;
if (test__fixunsxfti(1.0, 1))
return 1;
if (test__fixunsxfti(1.5, 1))
return 1;
if (test__fixunsxfti(1.99, 1))
return 1;
if (test__fixunsxfti(2.0, 2))
return 1;
if (test__fixunsxfti(2.01, 2))
return 1;
if (test__fixunsxfti(-0.5, 0))
return 1;
if (test__fixunsxfti(-0.99, 0))
return 1;
if (test__fixunsxfti(-1.0, 0))
return 1;
if (test__fixunsxfti(-1.5, 0))
return 1;
if (test__fixunsxfti(-1.99, 0))
return 1;
if (test__fixunsxfti(-2.0, 0))
return 1;
if (test__fixunsxfti(-2.01, 0))
return 1;
if (test__fixunsxfti(0x1.FFFFFEp+62, 0x7FFFFF8000000000LL))
return 1;
if (test__fixunsxfti(0x1.FFFFFCp+62, 0x7FFFFF0000000000LL))
return 1;
if (test__fixunsxfti(-0x1.FFFFFEp+62, 0))
return 1;
if (test__fixunsxfti(-0x1.FFFFFCp+62, 0))
return 1;
if (test__fixunsxfti(0x1.FFFFFFFFFFFFFp+62, 0x7FFFFFFFFFFFFC00LL))
return 1;
if (test__fixunsxfti(0x1.FFFFFFFFFFFFEp+62, 0x7FFFFFFFFFFFF800LL))
return 1;
if (test__fixunsxfti(-0x1.FFFFFFFFFFFFFp+62, 0))
return 1;
if (test__fixunsxfti(-0x1.FFFFFFFFFFFFEp+62, 0))
return 1;
if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFFEp+63L, 0xFFFFFFFFFFFFFFFFLL))
return 1;
if (test__fixunsxfti(0x1.0000000000000002p+63L, 0x8000000000000001LL))
return 1;
if (test__fixunsxfti(0x1.0000000000000000p+63L, 0x8000000000000000LL))
return 1;
if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFFCp+62L, 0x7FFFFFFFFFFFFFFFLL))
return 1;
if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFF8p+62L, 0x7FFFFFFFFFFFFFFELL))
return 1;
if (test__fixunsxfti(-0x1.0000000000000000p+63L, 0))
return 1;
if (test__fixunsxfti(-0x1.FFFFFFFFFFFFFFFCp+62L, 0))
return 1;
if (test__fixunsxfti(-0x1.FFFFFFFFFFFFFFF8p+62L, 0))
return 1;
if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFFEp+127L, make_ti(0xFFFFFFFFFFFFFFFFLL, 0)))
return 1;
if (test__fixunsxfti(0x1.0000000000000002p+127L, make_ti(0x8000000000000001LL, 0)))
return 1;
if (test__fixunsxfti(0x1.0000000000000000p+127L, make_ti(0x8000000000000000LL, 0)))
return 1;
if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFFCp+126L, make_ti(0x7FFFFFFFFFFFFFFFLL, 0)))
return 1;
if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFF8p+126L, make_ti(0x7FFFFFFFFFFFFFFELL, 0)))
return 1;
#else
printf("skipped\n");
#endif
return 0;
}
|
