1 //===-- fixunstfti_test.c - Test __fixunstfti -----------------------------===//
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 __fixunstfti for the compiler_rt library.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include <stdio.h>
15
16 #if __LDBL_MANT_DIG__ == 113
17
18 #include "fp_test.h"
19 #include "int_lib.h"
20
21 // Returns: convert a to a unsigned long long, rounding toward zero.
22 // Negative values all become zero.
23
24 // Assumption: long double is a 128 bit floating point type
25 // tu_int is a 128 bit integral type
26 // value in long double is representable in tu_int or is negative
27 // (no range checking performed)
28
29 COMPILER_RT_ABI tu_int __fixunstfti(long double a);
30
test__fixunstfti(long double a,tu_int expected)31 int test__fixunstfti(long double a, tu_int expected)
32 {
33 tu_int x = __fixunstfti(a);
34 if (x != expected)
35 {
36 twords xt;
37 xt.all = x;
38
39 twords expectedt;
40 expectedt.all = expected;
41
42 printf("error in __fixunstfti(%.20Lf) = 0x%.16llX%.16llX, "
43 "expected 0x%.16llX%.16llX\n",
44 a, xt.s.high, xt.s.low, expectedt.s.high, expectedt.s.low);
45 }
46 return x != expected;
47 }
48
49 char assumption_1[sizeof(tu_int) == 4*sizeof(su_int)] = {0};
50 char assumption_2[sizeof(tu_int)*CHAR_BIT == 128] = {0};
51 char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0};
52
53 #endif
54
main()55 int main()
56 {
57 #if __LDBL_MANT_DIG__ == 113
58 if (test__fixunstfti(makeInf128(), make_ti(0xffffffffffffffffLL,
59 0xffffffffffffffffLL)))
60 return 1;
61
62 if (test__fixunstfti(0.0, 0))
63 return 1;
64
65 if (test__fixunstfti(0.5, 0))
66 return 1;
67 if (test__fixunstfti(0.99, 0))
68 return 1;
69 if (test__fixunstfti(1.0, 1))
70 return 1;
71 if (test__fixunstfti(1.5, 1))
72 return 1;
73 if (test__fixunstfti(1.99, 1))
74 return 1;
75 if (test__fixunstfti(2.0, 2))
76 return 1;
77 if (test__fixunstfti(2.01, 2))
78 return 1;
79 if (test__fixunstfti(-0.01, 0))
80 return 1;
81 if (test__fixunstfti(-0.99, 0))
82 return 1;
83
84 if (test__fixunstfti(0x1.p+128, make_ti(0xffffffffffffffffLL,
85 0xffffffffffffffffLL)))
86 return 1;
87
88 if (test__fixunstfti(0x1.FFFFFEp+126, make_ti(0x7fffff8000000000LL, 0x0)))
89 return 1;
90 if (test__fixunstfti(0x1.FFFFFEp+127, make_ti(0xffffff0000000000LL, 0x0)))
91 return 1;
92 if (test__fixunstfti(0x1.FFFFFEp+128, make_ti(0xffffffffffffffffLL,
93 0xffffffffffffffffLL)))
94 return 1;
95 if (test__fixunstfti(0x1.FFFFFEp+129, make_ti(0xffffffffffffffffLL,
96 0xffffffffffffffffLL)))
97 return 1;
98
99 #else
100 printf("skipped\n");
101 #endif
102 return 0;
103 }
104