Training courses

Kernel and Embedded Linux

Bootlin training courses

Embedded Linux, kernel,
Yocto Project, Buildroot, real-time,
graphics, boot time, debugging...

Bootlin logo

Elixir Cross Referencer

Open Menu /sys/external/bsd/compiler_rt/dist/test/builtins/Unit/multi3_test.c 
  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
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
//===-- multi3_test.c - Test __multi3 -------------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file tests __multi3 for the compiler_rt library.
//
//===----------------------------------------------------------------------===//

#include "int_lib.h"
#include <stdio.h>

#ifdef CRT_HAS_128BIT

COMPILER_RT_ABI ti_int __multi3(ti_int a, ti_int b);

int test__multi3(ti_int a, ti_int b, ti_int expected)
{
    ti_int x = __multi3(a, b);
    if (x != expected)
    {
        twords at;
        at.all = a;
        twords bt;
        bt.all = b;
        twords xt;
        xt.all = x;
        twords expectedt;
        expectedt.all = expected;
        printf("error in __multi3: 0x%.16llX%.16llX * 0x%.16llX%.16llX = "
               "0x%.16llX%.16llX, expected 0x%.16llX%.16llX\n",
               at.s.high, at.s.low, bt.s.high, bt.s.low, xt.s.high, xt.s.low,
               expectedt.s.high, expectedt.s.low);
    }
    return x != expected;
}

char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0};

#endif

int main()
{
#ifdef CRT_HAS_128BIT
    if (test__multi3(0, 0, 0))
        return 1;
    if (test__multi3(0, 1, 0))
        return 1;
    if (test__multi3(1, 0, 0))
        return 1;
    if (test__multi3(0, 10, 0))
        return 1;
    if (test__multi3(10, 0, 0))
        return 1;
    if (test__multi3(0, 81985529216486895LL, 0))
        return 1;
    if (test__multi3(81985529216486895LL, 0, 0))
        return 1;

    if (test__multi3(0, -1, 0))
        return 1;
    if (test__multi3(-1, 0, 0))
        return 1;
    if (test__multi3(0, -10, 0))
        return 1;
    if (test__multi3(-10, 0, 0))
        return 1;
    if (test__multi3(0, -81985529216486895LL, 0))
        return 1;
    if (test__multi3(-81985529216486895LL, 0, 0))
        return 1;

    if (test__multi3(1, 1, 1))
        return 1;
    if (test__multi3(1, 10, 10))
        return 1;
    if (test__multi3(10, 1, 10))
        return 1;
    if (test__multi3(1, 81985529216486895LL, 81985529216486895LL))
        return 1;
    if (test__multi3(81985529216486895LL, 1, 81985529216486895LL))
        return 1;

    if (test__multi3(1, -1, -1))
        return 1;
    if (test__multi3(1, -10, -10))
        return 1;
    if (test__multi3(-10, 1, -10))
        return 1;
    if (test__multi3(1, -81985529216486895LL, -81985529216486895LL))
        return 1;
    if (test__multi3(-81985529216486895LL, 1, -81985529216486895LL))
        return 1;

    if (test__multi3(3037000499LL, 3037000499LL, 9223372030926249001LL))
        return 1;
    if (test__multi3(-3037000499LL, 3037000499LL, -9223372030926249001LL))
        return 1;
    if (test__multi3(3037000499LL, -3037000499LL, -9223372030926249001LL))
        return 1;
    if (test__multi3(-3037000499LL, -3037000499LL, 9223372030926249001LL))
        return 1;

    if (test__multi3(4398046511103LL, 2097152LL, 9223372036852678656LL))
        return 1;
    if (test__multi3(-4398046511103LL, 2097152LL, -9223372036852678656LL))
        return 1;
    if (test__multi3(4398046511103LL, -2097152LL, -9223372036852678656LL))
        return 1;
    if (test__multi3(-4398046511103LL, -2097152LL, 9223372036852678656LL))
        return 1;

    if (test__multi3(2097152LL, 4398046511103LL, 9223372036852678656LL))
        return 1;
    if (test__multi3(-2097152LL, 4398046511103LL, -9223372036852678656LL))
        return 1;
    if (test__multi3(2097152LL, -4398046511103LL, -9223372036852678656LL))
        return 1;
    if (test__multi3(-2097152LL, -4398046511103LL, 9223372036852678656LL))
        return 1;

    if (test__multi3(make_ti(0x00000000000000B5LL, 0x04F333F9DE5BE000LL),
                     make_ti(0x0000000000000000LL, 0x00B504F333F9DE5BLL),
                     make_ti(0x7FFFFFFFFFFFF328LL, 0xDF915DA296E8A000LL)))
        return 1;
#else
    printf("skipped\n");
#endif
    return 0;
}