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
28 COMPILER_RT_ABI du_int __fixunstfdi(long double a);
29
test__fixunstfdi(long double a,du_int expected)30 int 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
39 char assumption_1[sizeof(du_int) == 2*sizeof(su_int)] = {0};
40 char assumption_2[sizeof(du_int)*CHAR_BIT == 64] = {0};
41 char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0};
42
43 #endif
44
main()45 int 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