1//===-- fixunsxfti_test.c - Test __fixunsxfti -----------------------------===//
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 __fixunsxfti 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: long double is an intel 80 bit floating point type padded with 6 bytes
23//             tu_int is a 64 bit integral type
24//             value in long double is representable in tu_int or is negative
25//                 (no range checking performed)
26
27// gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee |
28// 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm
29
30tu_int __fixunsxfti(long double a);
31
32int test__fixunsxfti(long double a, tu_int expected)
33{
34    tu_int x = __fixunsxfti(a);
35    if (x != expected)
36    {
37        utwords xt;
38        xt.all = x;
39        utwords expectedt;
40        expectedt.all = expected;
41        printf("error in __fixunsxfti(%LA) = 0x%.16llX%.16llX, expected 0x%.16llX%.16llX\n",
42               a, xt.s.high, xt.s.low, expectedt.s.high, expectedt.s.low);
43    }
44    return x != expected;
45}
46
47char assumption_1[sizeof(tu_int) == 2*sizeof(du_int)] = {0};
48char assumption_2[sizeof(tu_int)*CHAR_BIT == 128] = {0};
49char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0};
50
51#endif
52
53int main()
54{
55#ifdef CRT_HAS_128BIT
56    if (test__fixunsxfti(0.0, 0))
57        return 1;
58
59    if (test__fixunsxfti(0.5, 0))
60        return 1;
61    if (test__fixunsxfti(0.99, 0))
62        return 1;
63    if (test__fixunsxfti(1.0, 1))
64        return 1;
65    if (test__fixunsxfti(1.5, 1))
66        return 1;
67    if (test__fixunsxfti(1.99, 1))
68        return 1;
69    if (test__fixunsxfti(2.0, 2))
70        return 1;
71    if (test__fixunsxfti(2.01, 2))
72        return 1;
73    if (test__fixunsxfti(-0.5, 0))
74        return 1;
75    if (test__fixunsxfti(-0.99, 0))
76        return 1;
77    if (test__fixunsxfti(-1.0, 0))
78        return 1;
79    if (test__fixunsxfti(-1.5, 0))
80        return 1;
81    if (test__fixunsxfti(-1.99, 0))
82        return 1;
83    if (test__fixunsxfti(-2.0, 0))
84        return 1;
85    if (test__fixunsxfti(-2.01, 0))
86        return 1;
87
88    if (test__fixunsxfti(0x1.FFFFFEp+62, 0x7FFFFF8000000000LL))
89        return 1;
90    if (test__fixunsxfti(0x1.FFFFFCp+62, 0x7FFFFF0000000000LL))
91        return 1;
92
93    if (test__fixunsxfti(-0x1.FFFFFEp+62, 0))
94        return 1;
95    if (test__fixunsxfti(-0x1.FFFFFCp+62, 0))
96        return 1;
97
98    if (test__fixunsxfti(0x1.FFFFFFFFFFFFFp+62, 0x7FFFFFFFFFFFFC00LL))
99        return 1;
100    if (test__fixunsxfti(0x1.FFFFFFFFFFFFEp+62, 0x7FFFFFFFFFFFF800LL))
101        return 1;
102
103    if (test__fixunsxfti(-0x1.FFFFFFFFFFFFFp+62, 0))
104        return 1;
105    if (test__fixunsxfti(-0x1.FFFFFFFFFFFFEp+62, 0))
106        return 1;
107
108    if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFFEp+63L, 0xFFFFFFFFFFFFFFFFLL))
109        return 1;
110    if (test__fixunsxfti(0x1.0000000000000002p+63L, 0x8000000000000001LL))
111        return 1;
112    if (test__fixunsxfti(0x1.0000000000000000p+63L, 0x8000000000000000LL))
113        return 1;
114    if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFFCp+62L, 0x7FFFFFFFFFFFFFFFLL))
115        return 1;
116    if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFF8p+62L, 0x7FFFFFFFFFFFFFFELL))
117        return 1;
118
119    if (test__fixunsxfti(-0x1.0000000000000000p+63L, 0))
120        return 1;
121    if (test__fixunsxfti(-0x1.FFFFFFFFFFFFFFFCp+62L, 0))
122        return 1;
123    if (test__fixunsxfti(-0x1.FFFFFFFFFFFFFFF8p+62L, 0))
124        return 1;
125
126    if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFFEp+127L, make_ti(0xFFFFFFFFFFFFFFFFLL, 0)))
127        return 1;
128    if (test__fixunsxfti(0x1.0000000000000002p+127L, make_ti(0x8000000000000001LL, 0)))
129        return 1;
130    if (test__fixunsxfti(0x1.0000000000000000p+127L, make_ti(0x8000000000000000LL, 0)))
131        return 1;
132    if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFFCp+126L, make_ti(0x7FFFFFFFFFFFFFFFLL, 0)))
133        return 1;
134    if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFF8p+126L, make_ti(0x7FFFFFFFFFFFFFFELL, 0)))
135        return 1;
136
137#else
138    printf("skipped\n");
139#endif
140   return 0;
141}
142