1//===-- floatdixf_test.c - Test __floatdixf -------------------------------===//
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 __floatdixf for the compiler_rt library.
11//
12//===----------------------------------------------------------------------===//
13
14#include "int_lib.h"
15#include <stdio.h>
16
17#if HAS_80_BIT_LONG_DOUBLE
18// Returns: convert a to a long double, rounding toward even.
19
20// Assumption: long double is a IEEE 80 bit floating point type padded to 128 bits
21//             di_int is a 64 bit integral type
22
23// gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee |
24// 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm
25
26long double __floatdixf(di_int a);
27
28int test__floatdixf(di_int a, long double expected)
29{
30    long double x = __floatdixf(a);
31    if (x != expected)
32        printf("error in __floatdixf(%llX) = %LA, expected %LA\n",
33               a, x, expected);
34    return x != expected;
35}
36
37char assumption_1[sizeof(di_int) == 2*sizeof(si_int)] = {0};
38char assumption_2[sizeof(di_int)*CHAR_BIT == 64] = {0};
39char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0};
40#endif
41
42int main()
43{
44#if HAS_80_BIT_LONG_DOUBLE
45    if (test__floatdixf(0, 0.0))
46        return 1;
47
48    if (test__floatdixf(1, 1.0))
49        return 1;
50    if (test__floatdixf(2, 2.0))
51        return 1;
52    if (test__floatdixf(20, 20.0))
53        return 1;
54    if (test__floatdixf(-1, -1.0))
55        return 1;
56    if (test__floatdixf(-2, -2.0))
57        return 1;
58    if (test__floatdixf(-20, -20.0))
59        return 1;
60
61    if (test__floatdixf(0x7FFFFF8000000000LL, 0x1.FFFFFEp+62))
62        return 1;
63    if (test__floatdixf(0x7FFFFFFFFFFFF800LL, 0x1.FFFFFFFFFFFFEp+62))
64        return 1;
65    if (test__floatdixf(0x7FFFFF0000000000LL, 0x1.FFFFFCp+62))
66        return 1;
67    if (test__floatdixf(0x7FFFFFFFFFFFF000LL, 0x1.FFFFFFFFFFFFCp+62))
68        return 1;
69
70    if (test__floatdixf(0x8000008000000000LL, -0x1.FFFFFEp+62))
71        return 1;
72    if (test__floatdixf(0x8000000000000800LL, -0x1.FFFFFFFFFFFFEp+62))
73        return 1;
74    if (test__floatdixf(0x8000010000000000LL, -0x1.FFFFFCp+62))
75        return 1;
76    if (test__floatdixf(0x8000000000001000LL, -0x1.FFFFFFFFFFFFCp+62))
77        return 1;
78
79    if (test__floatdixf(0x8000000000000000LL, -0x1.000000p+63))
80        return 1;
81    if (test__floatdixf(0x8000000000000001LL, -0x1.FFFFFFFFFFFFFFFCp+62L))
82        return 1;
83
84    if (test__floatdixf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50))
85        return 1;
86
87    if (test__floatdixf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50))
88        return 1;
89    if (test__floatdixf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50))
90        return 1;
91    if (test__floatdixf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50))
92        return 1;
93    if (test__floatdixf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50))
94        return 1;
95    if (test__floatdixf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50))
96        return 1;
97
98    if (test__floatdixf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50))
99        return 1;
100    if (test__floatdixf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50))
101        return 1;
102    if (test__floatdixf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50))
103        return 1;
104    if (test__floatdixf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50))
105        return 1;
106    if (test__floatdixf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50))
107        return 1;
108
109    if (test__floatdixf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57))
110        return 1;
111    if (test__floatdixf(0x023479FD0E092DA1LL, 0x8.D1E7F43824B684p+54L))
112        return 1;
113    if (test__floatdixf(0x023479FD0E092DB0LL, 0x8.D1E7f43824B6Cp+54L))
114        return 1;
115    if (test__floatdixf(0x023479FD0E092DB8LL, 0x8.D1E7F43824B6Ep+54L))
116        return 1;
117    if (test__floatdixf(0x023479FD0E092DB6LL, 0x8.D1E7F43824B6D8p+54L))
118        return 1;
119    if (test__floatdixf(0x023479FD0E092DBFLL, 0x8.D1E7F43824B6FCp+54L))
120        return 1;
121    if (test__floatdixf(0x023479FD0E092DC1LL, 0x8.D1E7F43824B704p+54L))
122        return 1;
123    if (test__floatdixf(0x023479FD0E092DC7LL, 0x8.D1E7F43824B71Cp+54L))
124        return 1;
125    if (test__floatdixf(0x023479FD0E092DC8LL, 0x8.D1E7F43824B72p+54L))
126        return 1;
127    if (test__floatdixf(0x023479FD0E092DCFLL, 0x8.D1E7F43824B73Cp+54L))
128        return 1;
129    if (test__floatdixf(0x023479FD0E092DD0LL, 0x8.D1E7F43824B74p+54L))
130        return 1;
131    if (test__floatdixf(0x023479FD0E092DD1LL, 0x8.D1E7F43824B744p+54L))
132        return 1;
133    if (test__floatdixf(0x023479FD0E092DD8LL, 0x8.D1E7F43824B76p+54L))
134        return 1;
135    if (test__floatdixf(0x023479FD0E092DDFLL, 0x8.D1E7F43824B77Cp+54L))
136        return 1;
137    if (test__floatdixf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57))
138        return 1;
139
140#endif
141   return 0;
142}
143