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