1 //===-- floattixf.c - Test __floattixf ------------------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file tests __floattixf for the compiler_rt library.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #if __x86_64
15
16 #include "int_lib.h"
17 #include <float.h>
18 #include <stdio.h>
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 // ti_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 long double __floattixf(ti_int a);
29
test__floattixf(ti_int a,long double expected)30 int test__floattixf(ti_int a, long double expected)
31 {
32 long double x = __floattixf(a);
33 if (x != expected)
34 {
35 twords at;
36 at.all = a;
37 printf("error in __floattixf(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(ti_int) == 2*sizeof(di_int)] = {0};
44 char assumption_2[sizeof(ti_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 #if __x86_64
52 if (test__floattixf(0, 0.0))
53 return 1;
54
55 if (test__floattixf(1, 1.0))
56 return 1;
57 if (test__floattixf(2, 2.0))
58 return 1;
59 if (test__floattixf(20, 20.0))
60 return 1;
61 if (test__floattixf(-1, -1.0))
62 return 1;
63 if (test__floattixf(-2, -2.0))
64 return 1;
65 if (test__floattixf(-20, -20.0))
66 return 1;
67
68 if (test__floattixf(0x7FFFFF8000000000LL, 0x1.FFFFFEp+62))
69 return 1;
70 if (test__floattixf(0x7FFFFFFFFFFFF800LL, 0x1.FFFFFFFFFFFFEp+62))
71 return 1;
72 if (test__floattixf(0x7FFFFF0000000000LL, 0x1.FFFFFCp+62))
73 return 1;
74 if (test__floattixf(0x7FFFFFFFFFFFF000LL, 0x1.FFFFFFFFFFFFCp+62))
75 return 1;
76
77 if (test__floattixf(make_ti(0x8000008000000000LL, 0), -0x1.FFFFFEp+126))
78 return 1;
79 if (test__floattixf(make_ti(0x8000000000000800LL, 0), -0x1.FFFFFFFFFFFFEp+126))
80 return 1;
81 if (test__floattixf(make_ti(0x8000010000000000LL, 0), -0x1.FFFFFCp+126))
82 return 1;
83 if (test__floattixf(make_ti(0x8000000000001000LL, 0), -0x1.FFFFFFFFFFFFCp+126))
84 return 1;
85
86 if (test__floattixf(make_ti(0x8000000000000000LL, 0), -0x1.000000p+127))
87 return 1;
88 if (test__floattixf(make_ti(0x8000000000000001LL, 0), -0x1.FFFFFFFFFFFFFFFCp+126L))
89 return 1;
90
91 if (test__floattixf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50))
92 return 1;
93
94 if (test__floattixf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50))
95 return 1;
96 if (test__floattixf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50))
97 return 1;
98 if (test__floattixf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50))
99 return 1;
100 if (test__floattixf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50))
101 return 1;
102 if (test__floattixf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50))
103 return 1;
104
105 if (test__floattixf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50))
106 return 1;
107 if (test__floattixf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50))
108 return 1;
109 if (test__floattixf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50))
110 return 1;
111 if (test__floattixf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50))
112 return 1;
113 if (test__floattixf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50))
114 return 1;
115
116 if (test__floattixf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57))
117 return 1;
118 if (test__floattixf(0x023479FD0E092DA1LL, 0x1.1A3CFE870496D08p+57L))
119 return 1;
120 if (test__floattixf(0x023479FD0E092DB0LL, 0x1.1A3CFE870496D8p+57L))
121 return 1;
122 if (test__floattixf(0x023479FD0E092DB8LL, 0x1.1A3CFE870496DCp+57L))
123 return 1;
124 if (test__floattixf(0x023479FD0E092DB6LL, 0x1.1A3CFE870496DBp+57L))
125 return 1;
126 if (test__floattixf(0x023479FD0E092DBFLL, 0x1.1A3CFE870496DF8p+57L))
127 return 1;
128 if (test__floattixf(0x023479FD0E092DC1LL, 0x1.1A3CFE870496E08p+57L))
129 return 1;
130 if (test__floattixf(0x023479FD0E092DC7LL, 0x1.1A3CFE870496E38p+57L))
131 return 1;
132 if (test__floattixf(0x023479FD0E092DC8LL, 0x1.1A3CFE870496E4p+57L))
133 return 1;
134 if (test__floattixf(0x023479FD0E092DCFLL, 0x1.1A3CFE870496E78p+57L))
135 return 1;
136 if (test__floattixf(0x023479FD0E092DD0LL, 0x1.1A3CFE870496E8p+57L))
137 return 1;
138 if (test__floattixf(0x023479FD0E092DD1LL, 0x1.1A3CFE870496E88p+57L))
139 return 1;
140 if (test__floattixf(0x023479FD0E092DD8LL, 0x1.1A3CFE870496ECp+57L))
141 return 1;
142 if (test__floattixf(0x023479FD0E092DDFLL, 0x1.1A3CFE870496EF8p+57L))
143 return 1;
144 if (test__floattixf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57))
145 return 1;
146
147 if (test__floattixf(make_ti(0x023479FD0E092DC0LL, 0), 0x1.1A3CFE870496Ep+121L))
148 return 1;
149 if (test__floattixf(make_ti(0x023479FD0E092DA1LL, 1), 0x1.1A3CFE870496D08p+121L))
150 return 1;
151 if (test__floattixf(make_ti(0x023479FD0E092DB0LL, 2), 0x1.1A3CFE870496D8p+121L))
152 return 1;
153 if (test__floattixf(make_ti(0x023479FD0E092DB8LL, 3), 0x1.1A3CFE870496DCp+121L))
154 return 1;
155 if (test__floattixf(make_ti(0x023479FD0E092DB6LL, 4), 0x1.1A3CFE870496DBp+121L))
156 return 1;
157 if (test__floattixf(make_ti(0x023479FD0E092DBFLL, 5), 0x1.1A3CFE870496DF8p+121L))
158 return 1;
159 if (test__floattixf(make_ti(0x023479FD0E092DC1LL, 6), 0x1.1A3CFE870496E08p+121L))
160 return 1;
161 if (test__floattixf(make_ti(0x023479FD0E092DC7LL, 7), 0x1.1A3CFE870496E38p+121L))
162 return 1;
163 if (test__floattixf(make_ti(0x023479FD0E092DC8LL, 8), 0x1.1A3CFE870496E4p+121L))
164 return 1;
165 if (test__floattixf(make_ti(0x023479FD0E092DCFLL, 9), 0x1.1A3CFE870496E78p+121L))
166 return 1;
167 if (test__floattixf(make_ti(0x023479FD0E092DD0LL, 0), 0x1.1A3CFE870496E8p+121L))
168 return 1;
169 if (test__floattixf(make_ti(0x023479FD0E092DD1LL, 11), 0x1.1A3CFE870496E88p+121L))
170 return 1;
171 if (test__floattixf(make_ti(0x023479FD0E092DD8LL, 12), 0x1.1A3CFE870496ECp+121L))
172 return 1;
173 if (test__floattixf(make_ti(0x023479FD0E092DDFLL, 13), 0x1.1A3CFE870496EF8p+121L))
174 return 1;
175 if (test__floattixf(make_ti(0x023479FD0E092DE0LL, 14), 0x1.1A3CFE870496Fp+121L))
176 return 1;
177
178 if (test__floattixf(make_ti(0, 0xFFFFFFFFFFFFFFFFLL), 0x1.FFFFFFFFFFFFFFFEp+63L))
179 return 1;
180
181 if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456100000000001LL),
182 0x1.2345678901234562p+108L))
183 return 1;
184 if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456200000000000LL),
185 0x1.2345678901234562p+108L))
186 return 1;
187 if (test__floattixf(make_ti(0x0000123456789012LL, 0x34562FFFFFFFFFFFLL),
188 0x1.2345678901234562p+108L))
189 return 1;
190 if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456300000000000LL),
191 0x1.2345678901234564p+108L))
192 return 1;
193 if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456400000000000LL),
194 0x1.2345678901234564p+108L))
195 return 1;
196 if (test__floattixf(make_ti(0x0000123456789012LL, 0x34564FFFFFFFFFFFLL),
197 0x1.2345678901234564p+108L))
198 return 1;
199 if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456500000000000LL),
200 0x1.2345678901234564p+108L))
201 return 1;
202 if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456500000000001LL),
203 0x1.2345678901234566p+108L))
204 return 1;
205 if (test__floattixf(make_ti(0x0000123456789012LL, 0x34566FFFFFFFFFFFLL),
206 0x1.2345678901234566p+108L))
207 return 1;
208 #endif
209 return 0;
210 }
211