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