1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
| // RUN: %clang_builtins %s %librt -o %t && %run %t
// REQUIRES: librt_has_udivti3
// REQUIRES: int128
//===-- udivti3_test.c - Test __udivti3 -----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file tests __udivti3 for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#include "int_lib.h"
#include <stdio.h>
#ifdef CRT_HAS_128BIT
// Returns: a / b
COMPILER_RT_ABI tu_int __udivti3(tu_int a, tu_int b);
int test__udivti3(tu_int a, tu_int b, tu_int expected_q)
{
tu_int q = __udivti3(a, b);
if (q != expected_q)
{
utwords at;
at.all = a;
utwords bt;
bt.all = b;
utwords qt;
qt.all = q;
utwords expected_qt;
expected_qt.all = expected_q;
printf("error in __udivti3: 0x%llX%.16llX / 0x%llX%.16llX = "
"0x%llX%.16llX, expected 0x%llX%.16llX\n",
at.s.high, at.s.low, bt.s.high, bt.s.low, qt.s.high, qt.s.low,
expected_qt.s.high, expected_qt.s.low);
}
return q != expected_q;
}
#endif
int main()
{
#ifdef CRT_HAS_128BIT
if (test__udivti3(0, 1, 0))
return 1;
if (test__udivti3(2, 1, 2))
return 1;
if (test__udivti3(make_tu(0x8000000000000000uLL, 0), 1,
make_tu(0x8000000000000000uLL, 0)))
return 1;
if (test__udivti3(make_tu(0x8000000000000000uLL, 0), 2,
make_tu(0x4000000000000000uLL, 0)))
return 1;
if (test__udivti3(make_tu(0xFFFFFFFFFFFFFFFFuLL, 0xFFFFFFFFFFFFFFFFuLL), 2,
make_tu(0x7FFFFFFFFFFFFFFFuLL, 0xFFFFFFFFFFFFFFFFuLL)))
return 1;
#else
printf("skipped\n");
#endif
return 0;
}
|