1//===-- floatundixf_test.c - Test __floatundixf ---------------------------===//
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 __floatundixf for the compiler_rt library.
11//
12//===----------------------------------------------------------------------===//
13
14#include "int_lib.h"
15#include <stdio.h>
16
17
18#if HAS_80_BIT_LONG_DOUBLE
19// Returns: convert a to a long double, rounding toward even.
20
21// Assumption: long double is a IEEE 80 bit floating point type padded to 128 bits
22//             du_int is a 64 bit integral type
23
24// gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee |
25// 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm
26
27long double __floatundixf(du_int a);
28
29int test__floatundixf(du_int a, long double expected)
30{
31    long double x = __floatundixf(a);
32    if (x != expected)
33        printf("error in __floatundixf(%llX) = %LA, expected %LA\n",
34               a, x, expected);
35    return x != expected;
36}
37
38char assumption_1[sizeof(du_int) == 2*sizeof(si_int)] = {0};
39char assumption_2[sizeof(du_int)*CHAR_BIT == 64] = {0};
40char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0};
41#endif
42
43int main()
44{
45#if HAS_80_BIT_LONG_DOUBLE
46    if (test__floatundixf(0, 0.0))
47        return 1;
48
49    if (test__floatundixf(1, 1.0))
50        return 1;
51    if (test__floatundixf(2, 2.0))
52        return 1;
53    if (test__floatundixf(20, 20.0))
54        return 1;
55
56    if (test__floatundixf(0x7FFFFF8000000000ULL, 0x1.FFFFFEp+62))
57        return 1;
58    if (test__floatundixf(0x7FFFFFFFFFFFF800ULL, 0x1.FFFFFFFFFFFFEp+62))
59        return 1;
60    if (test__floatundixf(0x7FFFFF0000000000ULL, 0x1.FFFFFCp+62))
61        return 1;
62    if (test__floatundixf(0x7FFFFFFFFFFFF000ULL, 0x1.FFFFFFFFFFFFCp+62))
63        return 1;
64    if (test__floatundixf(0x7FFFFFFFFFFFFFFFULL, 0xF.FFFFFFFFFFFFFFEp+59L))
65        return 1;
66    if (test__floatundixf(0xFFFFFFFFFFFFFFFEULL, 0xF.FFFFFFFFFFFFFFEp+60L))
67        return 1;
68    if (test__floatundixf(0xFFFFFFFFFFFFFFFFULL, 0xF.FFFFFFFFFFFFFFFp+60L))
69        return 1;
70
71    if (test__floatundixf(0x8000008000000000ULL, 0x8.000008p+60))
72        return 1;
73    if (test__floatundixf(0x8000000000000800ULL, 0x8.0000000000008p+60))
74        return 1;
75    if (test__floatundixf(0x8000010000000000ULL, 0x8.00001p+60))
76        return 1;
77    if (test__floatundixf(0x8000000000001000ULL, 0x8.000000000001p+60))
78        return 1;
79
80    if (test__floatundixf(0x8000000000000000ULL, 0x8p+60))
81        return 1;
82    if (test__floatundixf(0x8000000000000001ULL, 0x8.000000000000001p+60L))
83        return 1;
84
85    if (test__floatundixf(0x0007FB72E8000000ULL, 0x1.FEDCBAp+50))
86        return 1;
87
88    if (test__floatundixf(0x0007FB72EA000000ULL, 0x1.FEDCBA8p+50))
89        return 1;
90    if (test__floatundixf(0x0007FB72EB000000ULL, 0x1.FEDCBACp+50))
91        return 1;
92    if (test__floatundixf(0x0007FB72EBFFFFFFULL, 0x1.FEDCBAFFFFFFCp+50))
93        return 1;
94    if (test__floatundixf(0x0007FB72EC000000ULL, 0x1.FEDCBBp+50))
95        return 1;
96    if (test__floatundixf(0x0007FB72E8000001ULL, 0x1.FEDCBA0000004p+50))
97        return 1;
98
99    if (test__floatundixf(0x0007FB72E6000000ULL, 0x1.FEDCB98p+50))
100        return 1;
101    if (test__floatundixf(0x0007FB72E7000000ULL, 0x1.FEDCB9Cp+50))
102        return 1;
103    if (test__floatundixf(0x0007FB72E7FFFFFFULL, 0x1.FEDCB9FFFFFFCp+50))
104        return 1;
105    if (test__floatundixf(0x0007FB72E4000001ULL, 0x1.FEDCB90000004p+50))
106        return 1;
107    if (test__floatundixf(0x0007FB72E4000000ULL, 0x1.FEDCB9p+50))
108        return 1;
109
110    if (test__floatundixf(0x023479FD0E092DC0ULL, 0x1.1A3CFE870496Ep+57))
111        return 1;
112    if (test__floatundixf(0x023479FD0E092DA1ULL, 0x8.D1E7F43824B684p+54L))
113        return 1;
114    if (test__floatundixf(0x023479FD0E092DB0ULL, 0x8.D1E7f43824B6Cp+54L))
115        return 1;
116    if (test__floatundixf(0x023479FD0E092DB8ULL, 0x8.D1E7F43824B6Ep+54L))
117        return 1;
118    if (test__floatundixf(0x023479FD0E092DB6ULL, 0x8.D1E7F43824B6D8p+54L))
119        return 1;
120    if (test__floatundixf(0x023479FD0E092DBFULL, 0x8.D1E7F43824B6FCp+54L))
121        return 1;
122    if (test__floatundixf(0x023479FD0E092DC1ULL, 0x8.D1E7F43824B704p+54L))
123        return 1;
124    if (test__floatundixf(0x023479FD0E092DC7ULL, 0x8.D1E7F43824B71Cp+54L))
125        return 1;
126    if (test__floatundixf(0x023479FD0E092DC8ULL, 0x8.D1E7F43824B72p+54L))
127        return 1;
128    if (test__floatundixf(0x023479FD0E092DCFULL, 0x8.D1E7F43824B73Cp+54L))
129        return 1;
130    if (test__floatundixf(0x023479FD0E092DD0ULL, 0x8.D1E7F43824B74p+54L))
131        return 1;
132    if (test__floatundixf(0x023479FD0E092DD1ULL, 0x8.D1E7F43824B744p+54L))
133        return 1;
134    if (test__floatundixf(0x023479FD0E092DD8ULL, 0x8.D1E7F43824B76p+54L))
135        return 1;
136    if (test__floatundixf(0x023479FD0E092DDFULL, 0x8.D1E7F43824B77Cp+54L))
137        return 1;
138    if (test__floatundixf(0x023479FD0E092DE0ULL, 0x1.1A3CFE870496Fp+57))
139        return 1;
140
141#endif
142   return 0;
143}
144