1//===-- fixunssfti_test.c - Test __fixunssfti -----------------------------===//
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 __fixunssfti for the compiler_rt library.
11//
12//===----------------------------------------------------------------------===//
13
14#include "int_lib.h"
15#include <stdio.h>
16
17#ifdef CRT_HAS_128BIT
18
19// Returns: convert a to a unsigned long long, rounding toward zero.
20//          Negative values all become zero.
21
22// Assumption: float is a IEEE 32 bit floating point type
23//             tu_int is a 64 bit integral type
24//             value in float is representable in tu_int or is negative
25//                 (no range checking performed)
26
27// seee eeee emmm mmmm mmmm mmmm mmmm mmmm
28
29COMPILER_RT_ABI tu_int __fixunssfti(float a);
30
31int test__fixunssfti(float a, tu_int expected)
32{
33    tu_int x = __fixunssfti(a);
34    if (x != expected)
35    {
36        utwords xt;
37        xt.all = x;
38        utwords expectedt;
39        expectedt.all = expected;
40        printf("error in __fixunssfti(%A) = 0x%.16llX%.16llX, expected 0x%.16llX%.16llX\n",
41               a, xt.s.high, xt.s.low, expectedt.s.high, expectedt.s.low);
42    }
43    return x != expected;
44}
45
46char assumption_1[sizeof(tu_int) == 2*sizeof(di_int)] = {0};
47char assumption_2[sizeof(su_int)*CHAR_BIT == 32] = {0};
48char assumption_3[sizeof(float)*CHAR_BIT == 32] = {0};
49
50#endif
51
52int main()
53{
54#ifdef CRT_HAS_128BIT
55    if (test__fixunssfti(0.0F, 0))
56        return 1;
57
58    if (test__fixunssfti(0.5F, 0))
59        return 1;
60    if (test__fixunssfti(0.99F, 0))
61        return 1;
62    if (test__fixunssfti(1.0F, 1))
63        return 1;
64    if (test__fixunssfti(1.5F, 1))
65        return 1;
66    if (test__fixunssfti(1.99F, 1))
67        return 1;
68    if (test__fixunssfti(2.0F, 2))
69        return 1;
70    if (test__fixunssfti(2.01F, 2))
71        return 1;
72    if (test__fixunssfti(-0.5F, 0))
73        return 1;
74    if (test__fixunssfti(-0.99F, 0))
75        return 1;
76#if !TARGET_LIBGCC
77    if (test__fixunssfti(-1.0F, 0))  // libgcc ignores "returns 0 for negative input" spec
78        return 1;
79    if (test__fixunssfti(-1.5F, 0))
80        return 1;
81    if (test__fixunssfti(-1.99F, 0))
82        return 1;
83    if (test__fixunssfti(-2.0F, 0))
84        return 1;
85    if (test__fixunssfti(-2.01F, 0))
86        return 1;
87#endif
88
89    if (test__fixunssfti(0x1.FFFFFEp+63F, 0xFFFFFF0000000000LL))
90        return 1;
91    if (test__fixunssfti(0x1.000000p+63F, 0x8000000000000000LL))
92        return 1;
93    if (test__fixunssfti(0x1.FFFFFEp+62F, 0x7FFFFF8000000000LL))
94        return 1;
95    if (test__fixunssfti(0x1.FFFFFCp+62F, 0x7FFFFF0000000000LL))
96        return 1;
97
98    if (test__fixunssfti(0x1.FFFFFEp+127F, make_ti(0xFFFFFF0000000000LL, 0)))
99        return 1;
100    if (test__fixunssfti(0x1.000000p+127F, make_ti(0x8000000000000000LL, 0)))
101        return 1;
102    if (test__fixunssfti(0x1.FFFFFEp+126F, make_ti(0x7FFFFF8000000000LL, 0)))
103        return 1;
104    if (test__fixunssfti(0x1.FFFFFCp+126F, make_ti(0x7FFFFF0000000000LL, 0)))
105        return 1;
106
107#if !TARGET_LIBGCC
108    if (test__fixunssfti(-0x1.FFFFFEp+62F, 0x0000000000000000LL))
109        return 1;
110    if (test__fixunssfti(-0x1.FFFFFCp+62F, 0x0000000000000000LL))
111        return 1;
112    if (test__fixunssfti(-0x1.FFFFFEp+126F, 0x0000000000000000LL))
113        return 1;
114    if (test__fixunssfti(-0x1.FFFFFCp+126F, 0x0000000000000000LL))
115        return 1;
116#endif
117
118#endif
119   return 0;
120}
121