1//===-- fixunstfdi_test.c - Test __fixunstfdi -----------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file tests __fixunstfdi for the compiler_rt library.
11//
12//===----------------------------------------------------------------------===//
13
14#include <stdio.h>
15
16#if _ARCH_PPC || __aarch64__
17
18#include "int_lib.h"
19
20// Returns: convert a to a unsigned long long, rounding toward zero.
21//          Negative values all become zero.
22
23// Assumption: long double is a 128 bit floating point type
24//             du_int is a 64 bit integral type
25//             value in long double is representable in du_int or is negative
26//                 (no range checking performed)
27
28COMPILER_RT_ABI du_int __fixunstfdi(long double a);
29
30int test__fixunstfdi(long double a, du_int expected)
31{
32    du_int x = __fixunstfdi(a);
33    if (x != expected)
34        printf("error in __fixunstfdi(%LA) = %llX, expected %llX\n",
35               a, x, expected);
36    return x != expected;
37}
38
39char assumption_1[sizeof(du_int) == 2*sizeof(su_int)] = {0};
40char assumption_2[sizeof(du_int)*CHAR_BIT == 64] = {0};
41char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0};
42
43#endif
44
45int main()
46{
47#if _ARCH_PPC || __aarch64__
48    if (test__fixunstfdi(0.0, 0))
49        return 1;
50
51    if (test__fixunstfdi(0.5, 0))
52        return 1;
53    if (test__fixunstfdi(0.99, 0))
54        return 1;
55    if (test__fixunstfdi(1.0, 1))
56        return 1;
57    if (test__fixunstfdi(1.5, 1))
58        return 1;
59    if (test__fixunstfdi(1.99, 1))
60        return 1;
61    if (test__fixunstfdi(2.0, 2))
62        return 1;
63    if (test__fixunstfdi(2.01, 2))
64        return 1;
65    if (test__fixunstfdi(-0.5, 0))
66        return 1;
67    if (test__fixunstfdi(-0.99, 0))
68        return 1;
69    if (test__fixunstfdi(-1.0, 0))
70        return 1;
71    if (test__fixunstfdi(-1.5, 0))
72        return 1;
73    if (test__fixunstfdi(-1.99, 0))
74        return 1;
75    if (test__fixunstfdi(-2.0, 0))
76        return 1;
77    if (test__fixunstfdi(-2.01, 0))
78        return 1;
79
80    if (test__fixunstfdi(0x1.FFFFFEp+62, 0x7FFFFF8000000000LL))
81        return 1;
82    if (test__fixunstfdi(0x1.FFFFFCp+62, 0x7FFFFF0000000000LL))
83        return 1;
84
85    if (test__fixunstfdi(-0x1.FFFFFEp+62, 0))
86        return 1;
87    if (test__fixunstfdi(-0x1.FFFFFCp+62, 0))
88        return 1;
89
90    if (test__fixunstfdi(0x1.FFFFFFFFFFFFFp+62, 0x7FFFFFFFFFFFFC00LL))
91        return 1;
92    if (test__fixunstfdi(0x1.FFFFFFFFFFFFEp+62, 0x7FFFFFFFFFFFF800LL))
93        return 1;
94
95    if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFp+62, 0))
96        return 1;
97    if (test__fixunstfdi(-0x1.FFFFFFFFFFFFEp+62, 0))
98        return 1;
99
100    if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFFEp+63L, 0xFFFFFFFFFFFFFFFFLL))
101        return 1;
102    if (test__fixunstfdi(0x1.0000000000000002p+63L, 0x8000000000000001LL))
103        return 1;
104    if (test__fixunstfdi(0x1.0000000000000000p+63L, 0x8000000000000000LL))
105        return 1;
106    if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFFCp+62L, 0x7FFFFFFFFFFFFFFFLL))
107        return 1;
108    if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFF8p+62L, 0x7FFFFFFFFFFFFFFELL))
109        return 1;
110    if (test__fixunstfdi(0x1.p+64L, 0xFFFFFFFFFFFFFFFFLL))
111        return 1;
112
113    if (test__fixunstfdi(-0x1.0000000000000000p+63L, 0))
114        return 1;
115    if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFFFCp+62L, 0))
116        return 1;
117    if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFFF8p+62L, 0))
118        return 1;
119
120#else
121    printf("skipped\n");
122#endif
123   return 0;
124}
125