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gerrit-public.fairphone.software / toolchain / llvm-project / ac24bb53bb5424b7bb4db4414f988a27182cd70c / . / compiler-rt / test / builtins / Unit / floatuntidf_test.c
blob: 1bf19ba141b917abd4dd1bb53bedf323f28f80c7 [file] [log] [blame]
Weiming Zhao9b7bbec2017-03-21 05:32:51 +0000[diff] [blame]1// RUN: %clang_builtins %s %librt -o %t && %run %t
Daniel Dunbarfd089992009-06-26 16:47:03 +0000[diff] [blame]2//===-- floatuntidf.c - Test __floatuntidf --------------------------------===//
3//
4// The LLVM Compiler Infrastructure
5//
Howard Hinnant5b791f62010-11-16 22:13:33 +0000[diff] [blame]6// This file is dual licensed under the MIT and the University of Illinois Open
7// Source Licenses. See LICENSE.TXT for details.
Daniel Dunbarfd089992009-06-26 16:47:03 +0000[diff] [blame]8//
9//===----------------------------------------------------------------------===//
10//
11// This file tests __floatuntidf for the compiler_rt library.
12//
13//===----------------------------------------------------------------------===//
14
Daniel Dunbarfd089992009-06-26 16:47:03 +0000[diff] [blame]15#include "int_lib.h"
16#include <float.h>
17#include <stdio.h>
18
Joerg Sonnenberger14743122014-03-18 21:35:30 +0000[diff] [blame]19#ifdef CRT_HAS_128BIT
20
Daniel Dunbarfd089992009-06-26 16:47:03 +0000[diff] [blame]21// Returns: convert a to a double, rounding toward even.
22
23// Assumption: double is a IEEE 64 bit floating point type
24// tu_int is a 64 bit integral type
25
26// seee eeee eeee mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm
27
Derek Schuffeb0ebc32015-04-24 15:45:57 +0000[diff] [blame]28COMPILER_RT_ABI double __floatuntidf(tu_int a);
Daniel Dunbarfd089992009-06-26 16:47:03 +0000[diff] [blame]29
30int test__floatuntidf(tu_int a, double expected)
31{
32 double x = __floatuntidf(a);
33 if (x != expected)
34 {
35 utwords at;
36 at.all = a;
37 printf("error in __floatuntidf(0x%.16llX%.16llX) = %a, expected %a\n",
Daniel Dunbar64857202009-10-27 17:49:07 +0000[diff] [blame]38 at.s.high, at.s.low, x, expected);
Daniel Dunbarfd089992009-06-26 16:47:03 +0000[diff] [blame]39 }
40 return x != expected;
41}
42
43char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0};
44char assumption_2[sizeof(ti_int)*CHAR_BIT == 128] = {0};
45char assumption_3[sizeof(double)*CHAR_BIT == 64] = {0};
46
47#endif
48
49int main()
50{
Joerg Sonnenberger14743122014-03-18 21:35:30 +0000[diff] [blame]51#ifdef CRT_HAS_128BIT
Daniel Dunbarfd089992009-06-26 16:47:03 +0000[diff] [blame]52 if (test__floatuntidf(0, 0.0))
53 return 1;
54
55 if (test__floatuntidf(1, 1.0))
56 return 1;
57 if (test__floatuntidf(2, 2.0))
58 return 1;
59 if (test__floatuntidf(20, 20.0))
60 return 1;
61
62 if (test__floatuntidf(0x7FFFFF8000000000LL, 0x1.FFFFFEp+62))
63 return 1;
64 if (test__floatuntidf(0x7FFFFFFFFFFFF800LL, 0x1.FFFFFFFFFFFFEp+62))
65 return 1;
66 if (test__floatuntidf(0x7FFFFF0000000000LL, 0x1.FFFFFCp+62))
67 return 1;
68 if (test__floatuntidf(0x7FFFFFFFFFFFF000LL, 0x1.FFFFFFFFFFFFCp+62))
69 return 1;
70
71 if (test__floatuntidf(make_ti(0x8000008000000000LL, 0), 0x1.000001p+127))
72 return 1;
73 if (test__floatuntidf(make_ti(0x8000000000000800LL, 0), 0x1.0000000000001p+127))
74 return 1;
75 if (test__floatuntidf(make_ti(0x8000010000000000LL, 0), 0x1.000002p+127))
76 return 1;
77 if (test__floatuntidf(make_ti(0x8000000000001000LL, 0), 0x1.0000000000002p+127))
78 return 1;
79
80 if (test__floatuntidf(make_ti(0x8000000000000000LL, 0), 0x1.000000p+127))
81 return 1;
82 if (test__floatuntidf(make_ti(0x8000000000000001LL, 0), 0x1.0000000000000002p+127))
83 return 1;
84
85 if (test__floatuntidf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50))
86 return 1;
87
88 if (test__floatuntidf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50))
89 return 1;
90 if (test__floatuntidf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50))
91 return 1;
92 if (test__floatuntidf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50))
93 return 1;
94 if (test__floatuntidf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50))
95 return 1;
96 if (test__floatuntidf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50))
97 return 1;
98
99 if (test__floatuntidf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50))
100 return 1;
101 if (test__floatuntidf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50))
102 return 1;
103 if (test__floatuntidf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50))
104 return 1;
105 if (test__floatuntidf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50))
106 return 1;
107 if (test__floatuntidf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50))
108 return 1;
109
110 if (test__floatuntidf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57))
111 return 1;
112 if (test__floatuntidf(0x023479FD0E092DA1LL, 0x1.1A3CFE870496Dp+57))
113 return 1;
114 if (test__floatuntidf(0x023479FD0E092DB0LL, 0x1.1A3CFE870496Ep+57))
115 return 1;
116 if (test__floatuntidf(0x023479FD0E092DB8LL, 0x1.1A3CFE870496Ep+57))
117 return 1;
118 if (test__floatuntidf(0x023479FD0E092DB6LL, 0x1.1A3CFE870496Ep+57))
119 return 1;
120 if (test__floatuntidf(0x023479FD0E092DBFLL, 0x1.1A3CFE870496Ep+57))
121 return 1;
122 if (test__floatuntidf(0x023479FD0E092DC1LL, 0x1.1A3CFE870496Ep+57))
123 return 1;
124 if (test__floatuntidf(0x023479FD0E092DC7LL, 0x1.1A3CFE870496Ep+57))
125 return 1;
126 if (test__floatuntidf(0x023479FD0E092DC8LL, 0x1.1A3CFE870496Ep+57))
127 return 1;
128 if (test__floatuntidf(0x023479FD0E092DCFLL, 0x1.1A3CFE870496Ep+57))
129 return 1;
130 if (test__floatuntidf(0x023479FD0E092DD0LL, 0x1.1A3CFE870496Ep+57))
131 return 1;
132 if (test__floatuntidf(0x023479FD0E092DD1LL, 0x1.1A3CFE870496Fp+57))
133 return 1;
134 if (test__floatuntidf(0x023479FD0E092DD8LL, 0x1.1A3CFE870496Fp+57))
135 return 1;
136 if (test__floatuntidf(0x023479FD0E092DDFLL, 0x1.1A3CFE870496Fp+57))
137 return 1;
138 if (test__floatuntidf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57))
139 return 1;
140
141 if (test__floatuntidf(make_ti(0x023479FD0E092DC0LL, 0), 0x1.1A3CFE870496Ep+121))
142 return 1;
143 if (test__floatuntidf(make_ti(0x023479FD0E092DA1LL, 1), 0x1.1A3CFE870496Dp+121))
144 return 1;
145 if (test__floatuntidf(make_ti(0x023479FD0E092DB0LL, 2), 0x1.1A3CFE870496Ep+121))
146 return 1;
147 if (test__floatuntidf(make_ti(0x023479FD0E092DB8LL, 3), 0x1.1A3CFE870496Ep+121))
148 return 1;
149 if (test__floatuntidf(make_ti(0x023479FD0E092DB6LL, 4), 0x1.1A3CFE870496Ep+121))
150 return 1;
151 if (test__floatuntidf(make_ti(0x023479FD0E092DBFLL, 5), 0x1.1A3CFE870496Ep+121))
152 return 1;
153 if (test__floatuntidf(make_ti(0x023479FD0E092DC1LL, 6), 0x1.1A3CFE870496Ep+121))
154 return 1;
155 if (test__floatuntidf(make_ti(0x023479FD0E092DC7LL, 7), 0x1.1A3CFE870496Ep+121))
156 return 1;
157 if (test__floatuntidf(make_ti(0x023479FD0E092DC8LL, 8), 0x1.1A3CFE870496Ep+121))
158 return 1;
159 if (test__floatuntidf(make_ti(0x023479FD0E092DCFLL, 9), 0x1.1A3CFE870496Ep+121))
160 return 1;
161 if (test__floatuntidf(make_ti(0x023479FD0E092DD0LL, 0), 0x1.1A3CFE870496Ep+121))
162 return 1;
163 if (test__floatuntidf(make_ti(0x023479FD0E092DD1LL, 11), 0x1.1A3CFE870496Fp+121))
164 return 1;
165 if (test__floatuntidf(make_ti(0x023479FD0E092DD8LL, 12), 0x1.1A3CFE870496Fp+121))
166 return 1;
167 if (test__floatuntidf(make_ti(0x023479FD0E092DDFLL, 13), 0x1.1A3CFE870496Fp+121))
168 return 1;
169 if (test__floatuntidf(make_ti(0x023479FD0E092DE0LL, 14), 0x1.1A3CFE870496Fp+121))
170 return 1;
Joerg Sonnenbergerd9bcddd2011-05-29 21:43:29 +0000[diff] [blame]171#else
172 printf("skipped\n");
Daniel Dunbarfd089992009-06-26 16:47:03 +0000[diff] [blame]173#endif
174 return 0;
175}