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      1 //===-- cmpdi2_test.c - Test __cmpdi2 -------------------------------------===//
      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 __cmpdi2 for the compiler_rt library.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #include "int_lib.h"
     15 #include <stdio.h>
     16 
     17 // Returns:  if (a <  b) returns 0
     18 //           if (a == b) returns 1
     19 //           if (a >  b) returns 2
     20 
     21 COMPILER_RT_ABI si_int __cmpdi2(di_int a, di_int b);
     22 
     23 int test__cmpdi2(di_int a, di_int b, si_int expected)
     24 {
     25     si_int x = __cmpdi2(a, b);
     26     if (x != expected)
     27         printf("error in __cmpdi2(0x%llX, 0x%llX) = %d, expected %d\n",
     28                a, b, x, expected);
     29     return x != expected;
     30 }
     31 
     32 char assumption_1[sizeof(di_int) == 2*sizeof(si_int)] = {0};
     33 
     34 int main()
     35 {
     36     if (test__cmpdi2(0, 0, 1))
     37         return 1;
     38     if (test__cmpdi2(1, 1, 1))
     39         return 1;
     40     if (test__cmpdi2(2, 2, 1))
     41         return 1;
     42     if (test__cmpdi2(0x7FFFFFFF, 0x7FFFFFFF, 1))
     43         return 1;
     44     if (test__cmpdi2(0x80000000, 0x80000000, 1))
     45         return 1;
     46     if (test__cmpdi2(0x80000001, 0x80000001, 1))
     47         return 1;
     48     if (test__cmpdi2(0xFFFFFFFF, 0xFFFFFFFF, 1))
     49         return 1;
     50     if (test__cmpdi2(0x000000010000000LL, 0x000000010000000LL, 1))
     51         return 1;
     52     if (test__cmpdi2(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL, 1))
     53         return 1;
     54 
     55     if (test__cmpdi2(0x0000000200000002LL, 0x0000000300000001LL, 0))
     56         return 1;
     57     if (test__cmpdi2(0x0000000200000002LL, 0x0000000300000002LL, 0))
     58         return 1;
     59     if (test__cmpdi2(0x0000000200000002LL, 0x0000000300000003LL, 0))
     60         return 1;
     61 
     62     if (test__cmpdi2(0x0000000200000002LL, 0x0000000100000001LL, 2))
     63         return 1;
     64     if (test__cmpdi2(0x0000000200000002LL, 0x0000000100000002LL, 2))
     65         return 1;
     66     if (test__cmpdi2(0x0000000200000002LL, 0x0000000100000003LL, 2))
     67         return 1;
     68 
     69     if (test__cmpdi2(0x0000000200000002LL, 0x0000000200000001LL, 2))
     70         return 1;
     71     if (test__cmpdi2(0x0000000200000002LL, 0x0000000200000002LL, 1))
     72         return 1;
     73     if (test__cmpdi2(0x0000000200000002LL, 0x0000000200000003LL, 0))
     74         return 1;
     75 
     76    return 0;
     77 }
     78