1//===-- floatuntixf.c - Test __floatuntixf --------------------------------===//
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 __floatuntixf 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 long double, rounding toward even.
21
22// Assumption: long double is a IEEE 80 bit floating point type padded to 128 bits
23//             tu_int is a 128 bit integral type
24
25// gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee |
26// 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm
27
28long double __floatuntixf(tu_int a);
29
30int test__floatuntixf(tu_int a, long double expected)
31{
32    long double x = __floatuntixf(a);
33    if (x != expected)
34    {
35        utwords at;
36        at.all = a;
37        printf("error in __floatuntixf(0x%.16llX%.16llX) = %LA, expected %LA\n",
38               at.s.high, at.s.low, x, expected);
39    }
40    return x != expected;
41}
42
43char assumption_1[sizeof(tu_int) == 2*sizeof(du_int)] = {0};
44char assumption_2[sizeof(tu_int)*CHAR_BIT == 128] = {0};
45char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0};
46
47#endif
48
49int main()
50{
51#ifdef CRT_HAS_128BIT
52    if (test__floatuntixf(0, 0.0))
53        return 1;
54
55    if (test__floatuntixf(1, 1.0))
56        return 1;
57    if (test__floatuntixf(2, 2.0))
58        return 1;
59    if (test__floatuntixf(20, 20.0))
60        return 1;
61
62    if (test__floatuntixf(0x7FFFFF8000000000ULL, 0x1.FFFFFEp+62))
63        return 1;
64    if (test__floatuntixf(0x7FFFFFFFFFFFF800ULL, 0x1.FFFFFFFFFFFFEp+62))
65        return 1;
66    if (test__floatuntixf(0x7FFFFF0000000000ULL, 0x1.FFFFFCp+62))
67        return 1;
68    if (test__floatuntixf(0x7FFFFFFFFFFFF000ULL, 0x1.FFFFFFFFFFFFCp+62))
69        return 1;
70    if (test__floatuntixf(0x7FFFFFFFFFFFFFFFULL, 0xF.FFFFFFFFFFFFFFEp+59L))
71        return 1;
72    if (test__floatuntixf(0xFFFFFFFFFFFFFFFEULL, 0xF.FFFFFFFFFFFFFFEp+60L))
73        return 1;
74    if (test__floatuntixf(0xFFFFFFFFFFFFFFFFULL, 0xF.FFFFFFFFFFFFFFFp+60L))
75        return 1;
76
77    if (test__floatuntixf(0x8000008000000000ULL, 0x8.000008p+60))
78        return 1;
79    if (test__floatuntixf(0x8000000000000800ULL, 0x8.0000000000008p+60))
80        return 1;
81    if (test__floatuntixf(0x8000010000000000ULL, 0x8.00001p+60))
82        return 1;
83    if (test__floatuntixf(0x8000000000001000ULL, 0x8.000000000001p+60))
84        return 1;
85
86    if (test__floatuntixf(0x8000000000000000ULL, 0x8p+60))
87        return 1;
88    if (test__floatuntixf(0x8000000000000001ULL, 0x8.000000000000001p+60L))
89        return 1;
90
91    if (test__floatuntixf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50))
92        return 1;
93
94    if (test__floatuntixf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50))
95        return 1;
96    if (test__floatuntixf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50))
97        return 1;
98    if (test__floatuntixf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50))
99        return 1;
100    if (test__floatuntixf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50))
101        return 1;
102    if (test__floatuntixf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50))
103        return 1;
104
105    if (test__floatuntixf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50))
106        return 1;
107    if (test__floatuntixf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50))
108        return 1;
109    if (test__floatuntixf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50))
110        return 1;
111    if (test__floatuntixf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50))
112        return 1;
113    if (test__floatuntixf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50))
114        return 1;
115
116    if (test__floatuntixf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57))
117        return 1;
118    if (test__floatuntixf(0x023479FD0E092DA1LL, 0x1.1A3CFE870496D08p+57L))
119        return 1;
120    if (test__floatuntixf(0x023479FD0E092DB0LL, 0x1.1A3CFE870496D8p+57L))
121        return 1;
122    if (test__floatuntixf(0x023479FD0E092DB8LL, 0x1.1A3CFE870496DCp+57L))
123        return 1;
124    if (test__floatuntixf(0x023479FD0E092DB6LL, 0x1.1A3CFE870496DBp+57L))
125        return 1;
126    if (test__floatuntixf(0x023479FD0E092DBFLL, 0x1.1A3CFE870496DF8p+57L))
127        return 1;
128    if (test__floatuntixf(0x023479FD0E092DC1LL, 0x1.1A3CFE870496E08p+57L))
129        return 1;
130    if (test__floatuntixf(0x023479FD0E092DC7LL, 0x1.1A3CFE870496E38p+57L))
131        return 1;
132    if (test__floatuntixf(0x023479FD0E092DC8LL, 0x1.1A3CFE870496E4p+57L))
133        return 1;
134    if (test__floatuntixf(0x023479FD0E092DCFLL, 0x1.1A3CFE870496E78p+57L))
135        return 1;
136    if (test__floatuntixf(0x023479FD0E092DD0LL, 0x1.1A3CFE870496E8p+57L))
137        return 1;
138    if (test__floatuntixf(0x023479FD0E092DD1LL, 0x1.1A3CFE870496E88p+57L))
139        return 1;
140    if (test__floatuntixf(0x023479FD0E092DD8LL, 0x1.1A3CFE870496ECp+57L))
141        return 1;
142    if (test__floatuntixf(0x023479FD0E092DDFLL, 0x1.1A3CFE870496EF8p+57L))
143        return 1;
144    if (test__floatuntixf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57))
145        return 1;
146
147    if (test__floatuntixf(make_ti(0x023479FD0E092DC0LL, 0), 0x1.1A3CFE870496Ep+121L))
148        return 1;
149    if (test__floatuntixf(make_ti(0x023479FD0E092DA1LL, 1), 0x1.1A3CFE870496D08p+121L))
150        return 1;
151    if (test__floatuntixf(make_ti(0x023479FD0E092DB0LL, 2), 0x1.1A3CFE870496D8p+121L))
152        return 1;
153    if (test__floatuntixf(make_ti(0x023479FD0E092DB8LL, 3), 0x1.1A3CFE870496DCp+121L))
154        return 1;
155    if (test__floatuntixf(make_ti(0x023479FD0E092DB6LL, 4), 0x1.1A3CFE870496DBp+121L))
156        return 1;
157    if (test__floatuntixf(make_ti(0x023479FD0E092DBFLL, 5), 0x1.1A3CFE870496DF8p+121L))
158        return 1;
159    if (test__floatuntixf(make_ti(0x023479FD0E092DC1LL, 6), 0x1.1A3CFE870496E08p+121L))
160        return 1;
161    if (test__floatuntixf(make_ti(0x023479FD0E092DC7LL, 7), 0x1.1A3CFE870496E38p+121L))
162        return 1;
163    if (test__floatuntixf(make_ti(0x023479FD0E092DC8LL, 8), 0x1.1A3CFE870496E4p+121L))
164        return 1;
165    if (test__floatuntixf(make_ti(0x023479FD0E092DCFLL, 9), 0x1.1A3CFE870496E78p+121L))
166        return 1;
167    if (test__floatuntixf(make_ti(0x023479FD0E092DD0LL, 0), 0x1.1A3CFE870496E8p+121L))
168        return 1;
169    if (test__floatuntixf(make_ti(0x023479FD0E092DD1LL, 11), 0x1.1A3CFE870496E88p+121L))
170        return 1;
171    if (test__floatuntixf(make_ti(0x023479FD0E092DD8LL, 12), 0x1.1A3CFE870496ECp+121L))
172        return 1;
173    if (test__floatuntixf(make_ti(0x023479FD0E092DDFLL, 13), 0x1.1A3CFE870496EF8p+121L))
174        return 1;
175    if (test__floatuntixf(make_ti(0x023479FD0E092DE0LL, 14), 0x1.1A3CFE870496Fp+121L))
176        return 1;
177
178    if (test__floatuntixf(make_ti(0, 0xFFFFFFFFFFFFFFFFLL), 0x1.FFFFFFFFFFFFFFFEp+63L))
179        return 1;
180
181    if (test__floatuntixf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x0000000000000000LL),
182                          0x1.FFFFFFFFFFFFFFFEp+127L))
183        return 1;
184    if (test__floatuntixf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL),
185                          0x1.0000000000000000p+128L))
186        return 1;
187
188    if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456100000000001LL),
189                        0x1.2345678901234562p+108L))
190        return 1;
191    if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456200000000000LL),
192                        0x1.2345678901234562p+108L))
193        return 1;
194    if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x34562FFFFFFFFFFFLL),
195                        0x1.2345678901234562p+108L))
196        return 1;
197    if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456300000000000LL),
198                        0x1.2345678901234564p+108L))
199        return 1;
200    if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456400000000000LL),
201                        0x1.2345678901234564p+108L))
202        return 1;
203    if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x34564FFFFFFFFFFFLL),
204                        0x1.2345678901234564p+108L))
205        return 1;
206    if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456500000000000LL),
207                        0x1.2345678901234564p+108L))
208        return 1;
209    if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456500000000001LL),
210                        0x1.2345678901234566p+108L))
211        return 1;
212    if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x34566FFFFFFFFFFFLL),
213                        0x1.2345678901234566p+108L))
214        return 1;
215#else
216    printf("skipped\n");
217#endif
218   return 0;
219}
220