src/compiler-rt/test/builtins/Unit/cmpdi2_test.c

   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 }