compiler-rt/test/builtins/Unit/muldi3_test.c

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_muldi3
   3 //===-- muldi3_test.c - Test __muldi3 -------------------------------------===//
   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 __muldi3 for the compiler_rt library.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #include "int_lib.h"
  16 #include <stdio.h>
  17
  18 COMPILER_RT_ABI di_int __muldi3(di_int a, di_int b);
  19
  20 int test__muldi3(di_int a, di_int b, di_int expected)
  21 {
  22     di_int x = __muldi3(a, b);
  23     if (x != expected)
  24         printf("error in __muldi3: %lld * %lld = %lld, expected %lld\n",
  25                a, b, __muldi3(a, b), expected);
  26     return x != expected;
  27 }
  28
  29 char assumption_1[sizeof(di_int) == 2*sizeof(si_int)] = {0};
  30
  31 int main()
  32 {
  33     if (test__muldi3(0, 0, 0))
  34         return 1;
  35     if (test__muldi3(0, 1, 0))
  36         return 1;
  37     if (test__muldi3(1, 0, 0))
  38         return 1;
  39     if (test__muldi3(0, 10, 0))
  40         return 1;
  41     if (test__muldi3(10, 0, 0))
  42         return 1;
  43     if (test__muldi3(0, 81985529216486895LL, 0))
  44         return 1;
  45     if (test__muldi3(81985529216486895LL, 0, 0))
  46         return 1;
  47
  48     if (test__muldi3(0, -1, 0))
  49         return 1;
  50     if (test__muldi3(-1, 0, 0))
  51         return 1;
  52     if (test__muldi3(0, -10, 0))
  53         return 1;
  54     if (test__muldi3(-10, 0, 0))
  55         return 1;
  56     if (test__muldi3(0, -81985529216486895LL, 0))
  57         return 1;
  58     if (test__muldi3(-81985529216486895LL, 0, 0))
  59         return 1;
  60
  61     if (test__muldi3(1, 1, 1))
  62         return 1;
  63     if (test__muldi3(1, 10, 10))
  64         return 1;
  65     if (test__muldi3(10, 1, 10))
  66         return 1;
  67     if (test__muldi3(1, 81985529216486895LL, 81985529216486895LL))
  68         return 1;
  69     if (test__muldi3(81985529216486895LL, 1, 81985529216486895LL))
  70         return 1;
  71
  72     if (test__muldi3(1, -1, -1))
  73         return 1;
  74     if (test__muldi3(1, -10, -10))
  75         return 1;
  76     if (test__muldi3(-10, 1, -10))
  77         return 1;
  78     if (test__muldi3(1, -81985529216486895LL, -81985529216486895LL))
  79         return 1;
  80     if (test__muldi3(-81985529216486895LL, 1, -81985529216486895LL))
  81         return 1;
  82
  83     if (test__muldi3(3037000499LL, 3037000499LL, 9223372030926249001LL))
  84         return 1;
  85     if (test__muldi3(-3037000499LL, 3037000499LL, -9223372030926249001LL))
  86         return 1;
  87     if (test__muldi3(3037000499LL, -3037000499LL, -9223372030926249001LL))
  88         return 1;
  89     if (test__muldi3(-3037000499LL, -3037000499LL, 9223372030926249001LL))
  90         return 1;
  91
  92     if (test__muldi3(4398046511103LL, 2097152LL, 9223372036852678656LL))
  93         return 1;
  94     if (test__muldi3(-4398046511103LL, 2097152LL, -9223372036852678656LL))
  95         return 1;
  96     if (test__muldi3(4398046511103LL, -2097152LL, -9223372036852678656LL))
  97         return 1;
  98     if (test__muldi3(-4398046511103LL, -2097152LL, 9223372036852678656LL))
  99         return 1;
 100
 101     if (test__muldi3(2097152LL, 4398046511103LL, 9223372036852678656LL))
 102         return 1;
 103     if (test__muldi3(-2097152LL, 4398046511103LL, -9223372036852678656LL))
 104         return 1;
 105     if (test__muldi3(2097152LL, -4398046511103LL, -9223372036852678656LL))
 106         return 1;
 107     if (test__muldi3(-2097152LL, -4398046511103LL, 9223372036852678656LL))
 108         return 1;
 109
 110     return 0;
 111 }