1// XFAIL: target=aarch64-{{.*}}-windows-{{.*}}
2// RUN: %clang_builtins %s %librt -o %t && %run %t
3// REQUIRES: librt_has_fixunstfdi
4
5#include <stdio.h>
6
7#if _ARCH_PPC || __aarch64__ || __arm64ec__
8
9#include "int_lib.h"
10
11// Returns: convert a to a unsigned long long, rounding toward zero.
12// Negative values all become zero.
13
14// Assumption: long double is a 128 bit floating point type
15// du_int is a 64 bit integral type
16// value in long double is representable in du_int or is negative
17// (no range checking performed)
18
19COMPILER_RT_ABI du_int __fixunstfdi(long double a);
20
21int test__fixunstfdi(long double a, du_int expected)
22{
23 du_int x = __fixunstfdi(a);
24 if (x != expected)
25 printf("error in __fixunstfdi(%LA) = %llX, expected %llX\n",
26 a, x, expected);
27 return x != expected;
28}
29
30char assumption_1[sizeof(du_int) == 2*sizeof(su_int)] = {0};
31char assumption_2[sizeof(du_int)*CHAR_BIT == 64] = {0};
32char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0};
33
34#endif
35
36int main()
37{
38#if _ARCH_PPC || __aarch64__ || __arm64ec__
39 if (test__fixunstfdi(0.0, 0))
40 return 1;
41
42 if (test__fixunstfdi(0.5, 0))
43 return 1;
44 if (test__fixunstfdi(0.99, 0))
45 return 1;
46 if (test__fixunstfdi(1.0, 1))
47 return 1;
48 if (test__fixunstfdi(1.5, 1))
49 return 1;
50 if (test__fixunstfdi(1.99, 1))
51 return 1;
52 if (test__fixunstfdi(2.0, 2))
53 return 1;
54 if (test__fixunstfdi(2.01, 2))
55 return 1;
56 if (test__fixunstfdi(-0.5, 0))
57 return 1;
58 if (test__fixunstfdi(-0.99, 0))
59 return 1;
60 if (test__fixunstfdi(-1.0, 0))
61 return 1;
62 if (test__fixunstfdi(-1.5, 0))
63 return 1;
64 if (test__fixunstfdi(-1.99, 0))
65 return 1;
66 if (test__fixunstfdi(-2.0, 0))
67 return 1;
68 if (test__fixunstfdi(-2.01, 0))
69 return 1;
70
71 if (test__fixunstfdi(0x1.FFFFFEp+62, 0x7FFFFF8000000000LL))
72 return 1;
73 if (test__fixunstfdi(0x1.FFFFFCp+62, 0x7FFFFF0000000000LL))
74 return 1;
75
76 if (test__fixunstfdi(-0x1.FFFFFEp+62, 0))
77 return 1;
78 if (test__fixunstfdi(-0x1.FFFFFCp+62, 0))
79 return 1;
80
81 if (test__fixunstfdi(0x1.FFFFFFFFFFFFFp+62, 0x7FFFFFFFFFFFFC00LL))
82 return 1;
83 if (test__fixunstfdi(0x1.FFFFFFFFFFFFEp+62, 0x7FFFFFFFFFFFF800LL))
84 return 1;
85
86 if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFp+62, 0))
87 return 1;
88 if (test__fixunstfdi(-0x1.FFFFFFFFFFFFEp+62, 0))
89 return 1;
90
91 if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFFEp+63L, 0xFFFFFFFFFFFFFFFFLL))
92 return 1;
93 if (test__fixunstfdi(0x1.0000000000000002p+63L, 0x8000000000000001LL))
94 return 1;
95 if (test__fixunstfdi(0x1.0000000000000000p+63L, 0x8000000000000000LL))
96 return 1;
97 if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFFCp+62L, 0x7FFFFFFFFFFFFFFFLL))
98 return 1;
99 if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFF8p+62L, 0x7FFFFFFFFFFFFFFELL))
100 return 1;
101 if (test__fixunstfdi(0x1.p+64L, 0xFFFFFFFFFFFFFFFFLL))
102 return 1;
103
104 if (test__fixunstfdi(-0x1.0000000000000000p+63L, 0))
105 return 1;
106 if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFFFCp+62L, 0))
107 return 1;
108 if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFFF8p+62L, 0))
109 return 1;
110
111#else
112 printf(format: "skipped\n");
113#endif
114 return 0;
115}
116

source code of compiler-rt/test/builtins/Unit/fixunstfdi_test.c