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      1 //===-- divdi3_test.c - Test __divdi3 -------------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is dual licensed under the MIT and the University of Illinois Open
      6 // Source Licenses. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // This file tests __divdi3 for the compiler_rt library.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #include "int_lib.h"
     15 #include <stdio.h>
     16 
     17 // Returns: a / b
     18 
     19 COMPILER_RT_ABI di_int __divdi3(di_int a, di_int b);
     20 
     21 int test__divdi3(di_int a, di_int b, di_int expected)
     22 {
     23     di_int x = __divdi3(a, b);
     24     if (x != expected)
     25         printf("error in __divdi3: %lld / %lld = %lld, expected %lld\n",
     26                a, b, x, expected);
     27     return x != expected;
     28 }
     29 
     30 char assumption_1[sizeof(di_int) == 2*sizeof(si_int)] = {0};
     31 
     32 int main()
     33 {
     34     if (test__divdi3(0, 1, 0))
     35         return 1;
     36     if (test__divdi3(0, -1, 0))
     37         return 1;
     38 
     39     if (test__divdi3(2, 1, 2))
     40         return 1;
     41     if (test__divdi3(2, -1, -2))
     42         return 1;
     43     if (test__divdi3(-2, 1, -2))
     44         return 1;
     45     if (test__divdi3(-2, -1, 2))
     46         return 1;
     47 
     48     if (test__divdi3(0x8000000000000000LL, 1, 0x8000000000000000LL))
     49         return 1;
     50     if (test__divdi3(0x8000000000000000LL, -1, 0x8000000000000000LL))
     51         return 1;
     52     if (test__divdi3(0x8000000000000000LL, -2, 0x4000000000000000LL))
     53         return 1;
     54     if (test__divdi3(0x8000000000000000LL, 2, 0xC000000000000000LL))
     55         return 1;
     56 
     57     return 0;
     58 }
     59