1//===-- floatuntidf.c - Test __floatuntidf --------------------------------===//
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 __floatuntidf for the compiler_rt library.
11//
12//===----------------------------------------------------------------------===//
13
14#include "int_lib.h"
15#include <float.h>
16#include <stdio.h>
17
18#ifdef CRT_HAS_128BIT
19
20// Returns: convert a to a double, rounding toward even.
21
22// Assumption: double is a IEEE 64 bit floating point type
23//             tu_int is a 64 bit integral type
24
25// seee eeee eeee mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm
26
27double __floatuntidf(tu_int a);
28
29int test__floatuntidf(tu_int a, double expected)
30{
31    double x = __floatuntidf(a);
32    if (x != expected)
33    {
34        utwords at;
35        at.all = a;
36        printf("error in __floatuntidf(0x%.16llX%.16llX) = %a, expected %a\n",
37               at.s.high, at.s.low, x, expected);
38    }
39    return x != expected;
40}
41
42char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0};
43char assumption_2[sizeof(ti_int)*CHAR_BIT == 128] = {0};
44char assumption_3[sizeof(double)*CHAR_BIT == 64] = {0};
45
46#endif
47
48int main()
49{
50#ifdef CRT_HAS_128BIT
51    if (test__floatuntidf(0, 0.0))
52        return 1;
53
54    if (test__floatuntidf(1, 1.0))
55        return 1;
56    if (test__floatuntidf(2, 2.0))
57        return 1;
58    if (test__floatuntidf(20, 20.0))
59        return 1;
60
61    if (test__floatuntidf(0x7FFFFF8000000000LL, 0x1.FFFFFEp+62))
62        return 1;
63    if (test__floatuntidf(0x7FFFFFFFFFFFF800LL, 0x1.FFFFFFFFFFFFEp+62))
64        return 1;
65    if (test__floatuntidf(0x7FFFFF0000000000LL, 0x1.FFFFFCp+62))
66        return 1;
67    if (test__floatuntidf(0x7FFFFFFFFFFFF000LL, 0x1.FFFFFFFFFFFFCp+62))
68        return 1;
69
70    if (test__floatuntidf(make_ti(0x8000008000000000LL, 0), 0x1.000001p+127))
71        return 1;
72    if (test__floatuntidf(make_ti(0x8000000000000800LL, 0), 0x1.0000000000001p+127))
73        return 1;
74    if (test__floatuntidf(make_ti(0x8000010000000000LL, 0), 0x1.000002p+127))
75        return 1;
76    if (test__floatuntidf(make_ti(0x8000000000001000LL, 0), 0x1.0000000000002p+127))
77        return 1;
78
79    if (test__floatuntidf(make_ti(0x8000000000000000LL, 0), 0x1.000000p+127))
80        return 1;
81    if (test__floatuntidf(make_ti(0x8000000000000001LL, 0), 0x1.0000000000000002p+127))
82        return 1;
83
84    if (test__floatuntidf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50))
85        return 1;
86
87    if (test__floatuntidf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50))
88        return 1;
89    if (test__floatuntidf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50))
90        return 1;
91    if (test__floatuntidf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50))
92        return 1;
93    if (test__floatuntidf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50))
94        return 1;
95    if (test__floatuntidf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50))
96        return 1;
97
98    if (test__floatuntidf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50))
99        return 1;
100    if (test__floatuntidf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50))
101        return 1;
102    if (test__floatuntidf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50))
103        return 1;
104    if (test__floatuntidf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50))
105        return 1;
106    if (test__floatuntidf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50))
107        return 1;
108
109    if (test__floatuntidf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57))
110        return 1;
111    if (test__floatuntidf(0x023479FD0E092DA1LL, 0x1.1A3CFE870496Dp+57))
112        return 1;
113    if (test__floatuntidf(0x023479FD0E092DB0LL, 0x1.1A3CFE870496Ep+57))
114        return 1;
115    if (test__floatuntidf(0x023479FD0E092DB8LL, 0x1.1A3CFE870496Ep+57))
116        return 1;
117    if (test__floatuntidf(0x023479FD0E092DB6LL, 0x1.1A3CFE870496Ep+57))
118        return 1;
119    if (test__floatuntidf(0x023479FD0E092DBFLL, 0x1.1A3CFE870496Ep+57))
120        return 1;
121    if (test__floatuntidf(0x023479FD0E092DC1LL, 0x1.1A3CFE870496Ep+57))
122        return 1;
123    if (test__floatuntidf(0x023479FD0E092DC7LL, 0x1.1A3CFE870496Ep+57))
124        return 1;
125    if (test__floatuntidf(0x023479FD0E092DC8LL, 0x1.1A3CFE870496Ep+57))
126        return 1;
127    if (test__floatuntidf(0x023479FD0E092DCFLL, 0x1.1A3CFE870496Ep+57))
128        return 1;
129    if (test__floatuntidf(0x023479FD0E092DD0LL, 0x1.1A3CFE870496Ep+57))
130        return 1;
131    if (test__floatuntidf(0x023479FD0E092DD1LL, 0x1.1A3CFE870496Fp+57))
132        return 1;
133    if (test__floatuntidf(0x023479FD0E092DD8LL, 0x1.1A3CFE870496Fp+57))
134        return 1;
135    if (test__floatuntidf(0x023479FD0E092DDFLL, 0x1.1A3CFE870496Fp+57))
136        return 1;
137    if (test__floatuntidf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57))
138        return 1;
139
140    if (test__floatuntidf(make_ti(0x023479FD0E092DC0LL, 0), 0x1.1A3CFE870496Ep+121))
141        return 1;
142    if (test__floatuntidf(make_ti(0x023479FD0E092DA1LL, 1), 0x1.1A3CFE870496Dp+121))
143        return 1;
144    if (test__floatuntidf(make_ti(0x023479FD0E092DB0LL, 2), 0x1.1A3CFE870496Ep+121))
145        return 1;
146    if (test__floatuntidf(make_ti(0x023479FD0E092DB8LL, 3), 0x1.1A3CFE870496Ep+121))
147        return 1;
148    if (test__floatuntidf(make_ti(0x023479FD0E092DB6LL, 4), 0x1.1A3CFE870496Ep+121))
149        return 1;
150    if (test__floatuntidf(make_ti(0x023479FD0E092DBFLL, 5), 0x1.1A3CFE870496Ep+121))
151        return 1;
152    if (test__floatuntidf(make_ti(0x023479FD0E092DC1LL, 6), 0x1.1A3CFE870496Ep+121))
153        return 1;
154    if (test__floatuntidf(make_ti(0x023479FD0E092DC7LL, 7), 0x1.1A3CFE870496Ep+121))
155        return 1;
156    if (test__floatuntidf(make_ti(0x023479FD0E092DC8LL, 8), 0x1.1A3CFE870496Ep+121))
157        return 1;
158    if (test__floatuntidf(make_ti(0x023479FD0E092DCFLL, 9), 0x1.1A3CFE870496Ep+121))
159        return 1;
160    if (test__floatuntidf(make_ti(0x023479FD0E092DD0LL, 0), 0x1.1A3CFE870496Ep+121))
161        return 1;
162    if (test__floatuntidf(make_ti(0x023479FD0E092DD1LL, 11), 0x1.1A3CFE870496Fp+121))
163        return 1;
164    if (test__floatuntidf(make_ti(0x023479FD0E092DD8LL, 12), 0x1.1A3CFE870496Fp+121))
165        return 1;
166    if (test__floatuntidf(make_ti(0x023479FD0E092DDFLL, 13), 0x1.1A3CFE870496Fp+121))
167        return 1;
168    if (test__floatuntidf(make_ti(0x023479FD0E092DE0LL, 14), 0x1.1A3CFE870496Fp+121))
169        return 1;
170#else
171    printf("skipped\n");
172#endif
173   return 0;
174}
175