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
28 COMPILER_RT_ABI long double __floatuntixf(tu_int a);
29
test__floatuntixf(tu_int a,long double expected)30 int 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
43 char assumption_1[sizeof(tu_int) == 2*sizeof(du_int)] = {0};
44 char assumption_2[sizeof(tu_int)*CHAR_BIT == 128] = {0};
45 char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0};
46
47 #endif
48
main()49 int 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