compiler-rt/test/builtins/Unit/mulodi4_test.c

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_mulodi4
   3 //===-- mulodi4_test.c - Test __mulodi4 -----------------------------------===//
   4 //
   5 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   6 // See https://llvm.org/LICENSE.txt for license information.
   7 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   8 //
   9 //===----------------------------------------------------------------------===//
  10 //
  11 // This file tests __mulodi4 for the compiler_rt library.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #include "int_lib.h"
  16 #include <stdio.h>
  17
  18 extern COMPILER_RT_ABI di_int __mulodi4(di_int a, di_int b, int* overflow);
  19
  20 int test__mulodi4(di_int a, di_int b, di_int expected, int expected_overflow)
  21 {
  22     int ov;
  23     di_int x = __mulodi4(a, b, &ov);
  24     if (ov != expected_overflow)
  25       printf("error in __mulodi4: overflow=%d expected=%d\n",
  26              ov, expected_overflow);
  27     else if (!expected_overflow && x != expected) {
  28         printf("error in __mulodi4: 0x%llX * 0x%llX = 0x%llX (overflow=%d), "
  29                            "expected 0x%llX (overflow=%d)\n",
  30                a, b, x, ov, expected, expected_overflow);
  31                 return 1;
  32     }
  33     return 0;
  34 }
  35
  36 int main()
  37 {
  38     if (test__mulodi4(0, 0, 0, 0))
  39         return 1;
  40     if (test__mulodi4(0, 1, 0, 0))
  41         return 1;
  42     if (test__mulodi4(1, 0, 0, 0))
  43         return 1;
  44     if (test__mulodi4(0, 10, 0, 0))
  45         return 1;
  46     if (test__mulodi4(10, 0, 0, 0))
  47         return 1;
  48     if (test__mulodi4(0, 81985529216486895LL, 0, 0))
  49         return 1;
  50     if (test__mulodi4(81985529216486895LL, 0, 0, 0))
  51         return 1;
  52
  53     if (test__mulodi4(0, -1, 0, 0))
  54         return 1;
  55     if (test__mulodi4(-1, 0, 0, 0))
  56         return 1;
  57     if (test__mulodi4(0, -10, 0, 0))
  58         return 1;
  59     if (test__mulodi4(-10, 0, 0, 0))
  60         return 1;
  61     if (test__mulodi4(0, -81985529216486895LL, 0, 0))
  62         return 1;
  63     if (test__mulodi4(-81985529216486895LL, 0, 0, 0))
  64         return 1;
  65
  66     if (test__mulodi4(1, 1, 1, 0))
  67         return 1;
  68     if (test__mulodi4(1, 10, 10, 0))
  69         return 1;
  70     if (test__mulodi4(10, 1, 10, 0))
  71         return 1;
  72     if (test__mulodi4(1, 81985529216486895LL, 81985529216486895LL, 0))
  73         return 1;
  74     if (test__mulodi4(81985529216486895LL, 1, 81985529216486895LL, 0))
  75         return 1;
  76
  77     if (test__mulodi4(1, -1, -1, 0))
  78         return 1;
  79     if (test__mulodi4(1, -10, -10, 0))
  80         return 1;
  81     if (test__mulodi4(-10, 1, -10, 0))
  82         return 1;
  83     if (test__mulodi4(1, -81985529216486895LL, -81985529216486895LL, 0))
  84         return 1;
  85     if (test__mulodi4(-81985529216486895LL, 1, -81985529216486895LL, 0))
  86         return 1;
  87
  88     if (test__mulodi4(3037000499LL, 3037000499LL, 9223372030926249001LL, 0))
  89         return 1;
  90     if (test__mulodi4(-3037000499LL, 3037000499LL, -9223372030926249001LL, 0))
  91         return 1;
  92     if (test__mulodi4(3037000499LL, -3037000499LL, -9223372030926249001LL, 0))
  93         return 1;
  94     if (test__mulodi4(-3037000499LL, -3037000499LL, 9223372030926249001LL, 0))
  95         return 1;
  96
  97     if (test__mulodi4(4398046511103LL, 2097152LL, 9223372036852678656LL, 0))
  98         return 1;
  99     if (test__mulodi4(-4398046511103LL, 2097152LL, -9223372036852678656LL, 0))
 100         return 1;
 101     if (test__mulodi4(4398046511103LL, -2097152LL, -9223372036852678656LL, 0))
 102         return 1;
 103     if (test__mulodi4(-4398046511103LL, -2097152LL, 9223372036852678656LL, 0))
 104         return 1;
 105
 106     if (test__mulodi4(2097152LL, 4398046511103LL, 9223372036852678656LL, 0))
 107         return 1;
 108     if (test__mulodi4(-2097152LL, 4398046511103LL, -9223372036852678656LL, 0))
 109         return 1;
 110     if (test__mulodi4(2097152LL, -4398046511103LL, -9223372036852678656LL, 0))
 111         return 1;
 112     if (test__mulodi4(-2097152LL, -4398046511103LL, 9223372036852678656LL, 0))
 113         return 1;
 114
 115      if (test__mulodi4(0x7FFFFFFFFFFFFFFFLL, -2, 2, 1))
 116          return 1;
 117      if (test__mulodi4(-2, 0x7FFFFFFFFFFFFFFFLL, 2, 1))
 118          return 1;
 119     if (test__mulodi4(0x7FFFFFFFFFFFFFFFLL, -1, 0x8000000000000001LL, 0))
 120         return 1;
 121     if (test__mulodi4(-1, 0x7FFFFFFFFFFFFFFFLL, 0x8000000000000001LL, 0))
 122         return 1;
 123     if (test__mulodi4(0x7FFFFFFFFFFFFFFFLL, 0, 0, 0))
 124         return 1;
 125     if (test__mulodi4(0, 0x7FFFFFFFFFFFFFFFLL, 0, 0))
 126         return 1;
 127     if (test__mulodi4(0x7FFFFFFFFFFFFFFFLL, 1, 0x7FFFFFFFFFFFFFFFLL, 0))
 128         return 1;
 129     if (test__mulodi4(1, 0x7FFFFFFFFFFFFFFFLL, 0x7FFFFFFFFFFFFFFFLL, 0))
 130         return 1;
 131      if (test__mulodi4(0x7FFFFFFFFFFFFFFFLL, 2, 0x8000000000000001LL, 1))
 132          return 1;
 133      if (test__mulodi4(2, 0x7FFFFFFFFFFFFFFFLL, 0x8000000000000001LL, 1))
 134          return 1;
 135
 136      if (test__mulodi4(0x8000000000000000LL, -2, 0x8000000000000000LL, 1))
 137          return 1;
 138      if (test__mulodi4(-2, 0x8000000000000000LL, 0x8000000000000000LL, 1))
 139          return 1;
 140      if (test__mulodi4(0x8000000000000000LL, -1, 0x8000000000000000LL, 1))
 141          return 1;
 142      if (test__mulodi4(-1, 0x8000000000000000LL, 0x8000000000000000LL, 1))
 143          return 1;
 144     if (test__mulodi4(0x8000000000000000LL, 0, 0, 0))
 145         return 1;
 146     if (test__mulodi4(0, 0x8000000000000000LL, 0, 0))
 147         return 1;
 148     if (test__mulodi4(0x8000000000000000LL, 1, 0x8000000000000000LL, 0))
 149         return 1;
 150     if (test__mulodi4(1, 0x8000000000000000LL, 0x8000000000000000LL, 0))
 151         return 1;
 152      if (test__mulodi4(0x8000000000000000LL, 2, 0x8000000000000000LL, 1))
 153          return 1;
 154      if (test__mulodi4(2, 0x8000000000000000LL, 0x8000000000000000LL, 1))
 155          return 1;
 156
 157      if (test__mulodi4(0x8000000000000001LL, -2, 0x8000000000000001LL, 1))
 158          return 1;
 159      if (test__mulodi4(-2, 0x8000000000000001LL, 0x8000000000000001LL, 1))
 160          return 1;
 161     if (test__mulodi4(0x8000000000000001LL, -1, 0x7FFFFFFFFFFFFFFFLL, 0))
 162         return 1;
 163     if (test__mulodi4(-1, 0x8000000000000001LL, 0x7FFFFFFFFFFFFFFFLL, 0))
 164         return 1;
 165     if (test__mulodi4(0x8000000000000001LL, 0, 0, 0))
 166         return 1;
 167     if (test__mulodi4(0, 0x8000000000000001LL, 0, 0))
 168         return 1;
 169     if (test__mulodi4(0x8000000000000001LL, 1, 0x8000000000000001LL, 0))
 170         return 1;
 171     if (test__mulodi4(1, 0x8000000000000001LL, 0x8000000000000001LL, 0))
 172         return 1;
 173      if (test__mulodi4(0x8000000000000001LL, 2, 0x8000000000000000LL, 1))
 174          return 1;
 175      if (test__mulodi4(2, 0x8000000000000001LL, 0x8000000000000000LL, 1))
 176          return 1;
 177
 178     return 0;
 179 }