compiler-rt/test/builtins/Unit/multi3_test.c

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_multi3
   3 // REQUIRES: int128
   4 //===-- multi3_test.c - Test __multi3 -------------------------------------===//
   5 //
   6 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   7 // See https://llvm.org/LICENSE.txt for license information.
   8 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   9 //
  10 //===----------------------------------------------------------------------===//
  11 //
  12 // This file tests __multi3 for the compiler_rt library.
  13 //
  14 //===----------------------------------------------------------------------===//
  15
  16 #include "int_lib.h"
  17 #include <stdio.h>
  18
  19 #ifdef CRT_HAS_128BIT
  20
  21 COMPILER_RT_ABI ti_int __multi3(ti_int a, ti_int b);
  22
  23 int test__multi3(ti_int a, ti_int b, ti_int expected)
  24 {
  25     ti_int x = __multi3(a, b);
  26     if (x != expected)
  27     {
  28         twords at;
  29         at.all = a;
  30         twords bt;
  31         bt.all = b;
  32         twords xt;
  33         xt.all = x;
  34         twords expectedt;
  35         expectedt.all = expected;
  36         printf("error in __multi3: 0x%.16llX%.16llX * 0x%.16llX%.16llX = "
  37                "0x%.16llX%.16llX, expected 0x%.16llX%.16llX\n",
  38                at.s.high, at.s.low, bt.s.high, bt.s.low, xt.s.high, xt.s.low,
  39                expectedt.s.high, expectedt.s.low);
  40     }
  41     return x != expected;
  42 }
  43
  44 char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0};
  45
  46 #endif
  47
  48 int main()
  49 {
  50 #ifdef CRT_HAS_128BIT
  51     if (test__multi3(0, 0, 0))
  52         return 1;
  53     if (test__multi3(0, 1, 0))
  54         return 1;
  55     if (test__multi3(1, 0, 0))
  56         return 1;
  57     if (test__multi3(0, 10, 0))
  58         return 1;
  59     if (test__multi3(10, 0, 0))
  60         return 1;
  61     if (test__multi3(0, 81985529216486895LL, 0))
  62         return 1;
  63     if (test__multi3(81985529216486895LL, 0, 0))
  64         return 1;
  65
  66     if (test__multi3(0, -1, 0))
  67         return 1;
  68     if (test__multi3(-1, 0, 0))
  69         return 1;
  70     if (test__multi3(0, -10, 0))
  71         return 1;
  72     if (test__multi3(-10, 0, 0))
  73         return 1;
  74     if (test__multi3(0, -81985529216486895LL, 0))
  75         return 1;
  76     if (test__multi3(-81985529216486895LL, 0, 0))
  77         return 1;
  78
  79     if (test__multi3(1, 1, 1))
  80         return 1;
  81     if (test__multi3(1, 10, 10))
  82         return 1;
  83     if (test__multi3(10, 1, 10))
  84         return 1;
  85     if (test__multi3(1, 81985529216486895LL, 81985529216486895LL))
  86         return 1;
  87     if (test__multi3(81985529216486895LL, 1, 81985529216486895LL))
  88         return 1;
  89
  90     if (test__multi3(1, -1, -1))
  91         return 1;
  92     if (test__multi3(1, -10, -10))
  93         return 1;
  94     if (test__multi3(-10, 1, -10))
  95         return 1;
  96     if (test__multi3(1, -81985529216486895LL, -81985529216486895LL))
  97         return 1;
  98     if (test__multi3(-81985529216486895LL, 1, -81985529216486895LL))
  99         return 1;
 100
 101     if (test__multi3(3037000499LL, 3037000499LL, 9223372030926249001LL))
 102         return 1;
 103     if (test__multi3(-3037000499LL, 3037000499LL, -9223372030926249001LL))
 104         return 1;
 105     if (test__multi3(3037000499LL, -3037000499LL, -9223372030926249001LL))
 106         return 1;
 107     if (test__multi3(-3037000499LL, -3037000499LL, 9223372030926249001LL))
 108         return 1;
 109
 110     if (test__multi3(4398046511103LL, 2097152LL, 9223372036852678656LL))
 111         return 1;
 112     if (test__multi3(-4398046511103LL, 2097152LL, -9223372036852678656LL))
 113         return 1;
 114     if (test__multi3(4398046511103LL, -2097152LL, -9223372036852678656LL))
 115         return 1;
 116     if (test__multi3(-4398046511103LL, -2097152LL, 9223372036852678656LL))
 117         return 1;
 118
 119     if (test__multi3(2097152LL, 4398046511103LL, 9223372036852678656LL))
 120         return 1;
 121     if (test__multi3(-2097152LL, 4398046511103LL, -9223372036852678656LL))
 122         return 1;
 123     if (test__multi3(2097152LL, -4398046511103LL, -9223372036852678656LL))
 124         return 1;
 125     if (test__multi3(-2097152LL, -4398046511103LL, 9223372036852678656LL))
 126         return 1;
 127
 128     if (test__multi3(make_ti(0x00000000000000B5LL, 0x04F333F9DE5BE000LL),
 129                      make_ti(0x0000000000000000LL, 0x00B504F333F9DE5BLL),
 130                      make_ti(0x7FFFFFFFFFFFF328LL, 0xDF915DA296E8A000LL)))
 131         return 1;
 132 #else
 133     printf("skipped\n");
 134 #endif
 135     return 0;
 136 }