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gerrit-public.fairphone.software / toolchain / llvm-project / ac24bb53bb5424b7bb4db4414f988a27182cd70c / . / compiler-rt / test / builtins / Unit / floatuntixf_test.c
blob: 0f7ad463450ddae06d96b13d2eb5fd748671b1d6 [file] [log] [blame]
Weiming Zhao9b7bbec2017-03-21 05:32:51 +0000[diff] [blame]1// RUN: %clang_builtins %s %librt -o %t && %run %t
Sterling Augustine3eaab962017-08-03 18:56:54 +0000[diff] [blame]2// REQUIRES: x86-target-arch
Simon Dardis19a4d972017-05-04 13:34:17 +0000[diff] [blame]3
Daniel Dunbarfd089992009-06-26 16:47:03 +0000[diff] [blame]4//===-- floatuntixf.c - Test __floatuntixf --------------------------------===//
5//
6// The LLVM Compiler Infrastructure
7//
Howard Hinnant5b791f62010-11-16 22:13:33 +0000[diff] [blame]8// This file is dual licensed under the MIT and the University of Illinois Open
9// Source Licenses. See LICENSE.TXT for details.
Daniel Dunbarfd089992009-06-26 16:47:03 +0000[diff] [blame]10//
11//===----------------------------------------------------------------------===//
12//
13// This file tests __floatuntixf for the compiler_rt library.
14//
15//===----------------------------------------------------------------------===//
16
Daniel Dunbarfd089992009-06-26 16:47:03 +0000[diff] [blame]17#include "int_lib.h"
18#include <float.h>
19#include <stdio.h>
20
Joerg Sonnenberger14743122014-03-18 21:35:30 +0000[diff] [blame]21#ifdef CRT_HAS_128BIT
22
Daniel Dunbarfd089992009-06-26 16:47:03 +0000[diff] [blame]23// Returns: convert a to a long double, rounding toward even.
24
25// Assumption: long double is a IEEE 80 bit floating point type padded to 128 bits
26// tu_int is a 128 bit integral type
27
28// gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee |
29// 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm
30
Derek Schuffeb0ebc32015-04-24 15:45:57 +0000[diff] [blame]31COMPILER_RT_ABI long double __floatuntixf(tu_int a);
Daniel Dunbarfd089992009-06-26 16:47:03 +0000[diff] [blame]32
33int test__floatuntixf(tu_int a, long double expected)
34{
35 long double x = __floatuntixf(a);
36 if (x != expected)
37 {
38 utwords at;
39 at.all = a;
40 printf("error in __floatuntixf(0x%.16llX%.16llX) = %LA, expected %LA\n",
Daniel Dunbar64857202009-10-27 17:49:07 +0000[diff] [blame]41 at.s.high, at.s.low, x, expected);
Daniel Dunbarfd089992009-06-26 16:47:03 +0000[diff] [blame]42 }
43 return x != expected;
44}
45
46char assumption_1[sizeof(tu_int) == 2*sizeof(du_int)] = {0};
47char assumption_2[sizeof(tu_int)*CHAR_BIT == 128] = {0};
48char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0};
49
50#endif
51
52int main()
53{
Joerg Sonnenberger14743122014-03-18 21:35:30 +0000[diff] [blame]54#ifdef CRT_HAS_128BIT
Daniel Dunbarfd089992009-06-26 16:47:03 +0000[diff] [blame]55 if (test__floatuntixf(0, 0.0))
56 return 1;
57
58 if (test__floatuntixf(1, 1.0))
59 return 1;
60 if (test__floatuntixf(2, 2.0))
61 return 1;
62 if (test__floatuntixf(20, 20.0))
63 return 1;
64
65 if (test__floatuntixf(0x7FFFFF8000000000ULL, 0x1.FFFFFEp+62))
66 return 1;
67 if (test__floatuntixf(0x7FFFFFFFFFFFF800ULL, 0x1.FFFFFFFFFFFFEp+62))
68 return 1;
69 if (test__floatuntixf(0x7FFFFF0000000000ULL, 0x1.FFFFFCp+62))
70 return 1;
71 if (test__floatuntixf(0x7FFFFFFFFFFFF000ULL, 0x1.FFFFFFFFFFFFCp+62))
72 return 1;
73 if (test__floatuntixf(0x7FFFFFFFFFFFFFFFULL, 0xF.FFFFFFFFFFFFFFEp+59L))
74 return 1;
75 if (test__floatuntixf(0xFFFFFFFFFFFFFFFEULL, 0xF.FFFFFFFFFFFFFFEp+60L))
76 return 1;
77 if (test__floatuntixf(0xFFFFFFFFFFFFFFFFULL, 0xF.FFFFFFFFFFFFFFFp+60L))
78 return 1;
79
80 if (test__floatuntixf(0x8000008000000000ULL, 0x8.000008p+60))
81 return 1;
82 if (test__floatuntixf(0x8000000000000800ULL, 0x8.0000000000008p+60))
83 return 1;
84 if (test__floatuntixf(0x8000010000000000ULL, 0x8.00001p+60))
85 return 1;
86 if (test__floatuntixf(0x8000000000001000ULL, 0x8.000000000001p+60))
87 return 1;
88
89 if (test__floatuntixf(0x8000000000000000ULL, 0x8p+60))
90 return 1;
91 if (test__floatuntixf(0x8000000000000001ULL, 0x8.000000000000001p+60L))
92 return 1;
93
94 if (test__floatuntixf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50))
95 return 1;
96
97 if (test__floatuntixf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50))
98 return 1;
99 if (test__floatuntixf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50))
100 return 1;
101 if (test__floatuntixf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50))
102 return 1;
103 if (test__floatuntixf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50))
104 return 1;
105 if (test__floatuntixf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50))
106 return 1;
107
108 if (test__floatuntixf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50))
109 return 1;
110 if (test__floatuntixf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50))
111 return 1;
112 if (test__floatuntixf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50))
113 return 1;
114 if (test__floatuntixf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50))
115 return 1;
116 if (test__floatuntixf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50))
117 return 1;
118
119 if (test__floatuntixf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57))
120 return 1;
121 if (test__floatuntixf(0x023479FD0E092DA1LL, 0x1.1A3CFE870496D08p+57L))
122 return 1;
123 if (test__floatuntixf(0x023479FD0E092DB0LL, 0x1.1A3CFE870496D8p+57L))
124 return 1;
125 if (test__floatuntixf(0x023479FD0E092DB8LL, 0x1.1A3CFE870496DCp+57L))
126 return 1;
127 if (test__floatuntixf(0x023479FD0E092DB6LL, 0x1.1A3CFE870496DBp+57L))
128 return 1;
129 if (test__floatuntixf(0x023479FD0E092DBFLL, 0x1.1A3CFE870496DF8p+57L))
130 return 1;
131 if (test__floatuntixf(0x023479FD0E092DC1LL, 0x1.1A3CFE870496E08p+57L))
132 return 1;
133 if (test__floatuntixf(0x023479FD0E092DC7LL, 0x1.1A3CFE870496E38p+57L))
134 return 1;
135 if (test__floatuntixf(0x023479FD0E092DC8LL, 0x1.1A3CFE870496E4p+57L))
136 return 1;
137 if (test__floatuntixf(0x023479FD0E092DCFLL, 0x1.1A3CFE870496E78p+57L))
138 return 1;
139 if (test__floatuntixf(0x023479FD0E092DD0LL, 0x1.1A3CFE870496E8p+57L))
140 return 1;
141 if (test__floatuntixf(0x023479FD0E092DD1LL, 0x1.1A3CFE870496E88p+57L))
142 return 1;
143 if (test__floatuntixf(0x023479FD0E092DD8LL, 0x1.1A3CFE870496ECp+57L))
144 return 1;
145 if (test__floatuntixf(0x023479FD0E092DDFLL, 0x1.1A3CFE870496EF8p+57L))
146 return 1;
147 if (test__floatuntixf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57))
148 return 1;
149
150 if (test__floatuntixf(make_ti(0x023479FD0E092DC0LL, 0), 0x1.1A3CFE870496Ep+121L))
151 return 1;
152 if (test__floatuntixf(make_ti(0x023479FD0E092DA1LL, 1), 0x1.1A3CFE870496D08p+121L))
153 return 1;
154 if (test__floatuntixf(make_ti(0x023479FD0E092DB0LL, 2), 0x1.1A3CFE870496D8p+121L))
155 return 1;
156 if (test__floatuntixf(make_ti(0x023479FD0E092DB8LL, 3), 0x1.1A3CFE870496DCp+121L))
157 return 1;
158 if (test__floatuntixf(make_ti(0x023479FD0E092DB6LL, 4), 0x1.1A3CFE870496DBp+121L))
159 return 1;
160 if (test__floatuntixf(make_ti(0x023479FD0E092DBFLL, 5), 0x1.1A3CFE870496DF8p+121L))
161 return 1;
162 if (test__floatuntixf(make_ti(0x023479FD0E092DC1LL, 6), 0x1.1A3CFE870496E08p+121L))
163 return 1;
164 if (test__floatuntixf(make_ti(0x023479FD0E092DC7LL, 7), 0x1.1A3CFE870496E38p+121L))
165 return 1;
166 if (test__floatuntixf(make_ti(0x023479FD0E092DC8LL, 8), 0x1.1A3CFE870496E4p+121L))
167 return 1;
168 if (test__floatuntixf(make_ti(0x023479FD0E092DCFLL, 9), 0x1.1A3CFE870496E78p+121L))
169 return 1;
170 if (test__floatuntixf(make_ti(0x023479FD0E092DD0LL, 0), 0x1.1A3CFE870496E8p+121L))
171 return 1;
172 if (test__floatuntixf(make_ti(0x023479FD0E092DD1LL, 11), 0x1.1A3CFE870496E88p+121L))
173 return 1;
174 if (test__floatuntixf(make_ti(0x023479FD0E092DD8LL, 12), 0x1.1A3CFE870496ECp+121L))
175 return 1;
176 if (test__floatuntixf(make_ti(0x023479FD0E092DDFLL, 13), 0x1.1A3CFE870496EF8p+121L))
177 return 1;
178 if (test__floatuntixf(make_ti(0x023479FD0E092DE0LL, 14), 0x1.1A3CFE870496Fp+121L))
179 return 1;
180
181 if (test__floatuntixf(make_ti(0, 0xFFFFFFFFFFFFFFFFLL), 0x1.FFFFFFFFFFFFFFFEp+63L))
182 return 1;
183
184 if (test__floatuntixf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x0000000000000000LL),
185 0x1.FFFFFFFFFFFFFFFEp+127L))
186 return 1;
187 if (test__floatuntixf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL),
188 0x1.0000000000000000p+128L))
189 return 1;
190
191 if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456100000000001LL),
192 0x1.2345678901234562p+108L))
193 return 1;
194 if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456200000000000LL),
195 0x1.2345678901234562p+108L))
196 return 1;
197 if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x34562FFFFFFFFFFFLL),
198 0x1.2345678901234562p+108L))
199 return 1;
200 if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456300000000000LL),
201 0x1.2345678901234564p+108L))
202 return 1;
203 if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456400000000000LL),
204 0x1.2345678901234564p+108L))
205 return 1;
206 if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x34564FFFFFFFFFFFLL),
207 0x1.2345678901234564p+108L))
208 return 1;
209 if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456500000000000LL),
210 0x1.2345678901234564p+108L))
211 return 1;
212 if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456500000000001LL),
213 0x1.2345678901234566p+108L))
214 return 1;
215 if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x34566FFFFFFFFFFFLL),
216 0x1.2345678901234566p+108L))
217 return 1;
Joerg Sonnenbergerd9bcddd2011-05-29 21:43:29 +0000[diff] [blame]218#else
219 printf("skipped\n");
Daniel Dunbarfd089992009-06-26 16:47:03 +0000[diff] [blame]220#endif
221 return 0;
222}