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

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_cmpdi2
   3
   4 #include "int_lib.h"
   5 #include <stdio.h>
   6
   7 // Returns:  if (a <  b) returns 0
   8 //           if (a == b) returns 1
   9 //           if (a >  b) returns 2
  10
  11 COMPILER_RT_ABI si_int __cmpdi2(di_int a, di_int b);
  12
  13 int test__cmpdi2(di_int a, di_int b, si_int expected)
  14 {
  15     si_int x = __cmpdi2(a, b);
  16     if (x != expected)
  17         printf("error in __cmpdi2(0x%llX, 0x%llX) = %d, expected %d\n",
  18                a, b, x, expected);
  19     return x != expected;
  20 }
  21
  22 char assumption_1[sizeof(di_int) == 2*sizeof(si_int)] = {0};
  23
  24 int main()
  25 {
  26     if (test__cmpdi2(0, 0, 1))
  27         return 1;
  28     if (test__cmpdi2(1, 1, 1))
  29         return 1;
  30     if (test__cmpdi2(2, 2, 1))
  31         return 1;
  32     if (test__cmpdi2(0x7FFFFFFF, 0x7FFFFFFF, 1))
  33         return 1;
  34     if (test__cmpdi2(0x80000000, 0x80000000, 1))
  35         return 1;
  36     if (test__cmpdi2(0x80000001, 0x80000001, 1))
  37         return 1;
  38     if (test__cmpdi2(0xFFFFFFFF, 0xFFFFFFFF, 1))
  39         return 1;
  40     if (test__cmpdi2(0x000000010000000LL, 0x000000010000000LL, 1))
  41         return 1;
  42     if (test__cmpdi2(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL, 1))
  43         return 1;
  44
  45     if (test__cmpdi2(0x0000000200000002LL, 0x0000000300000001LL, 0))
  46         return 1;
  47     if (test__cmpdi2(0x0000000200000002LL, 0x0000000300000002LL, 0))
  48         return 1;
  49     if (test__cmpdi2(0x0000000200000002LL, 0x0000000300000003LL, 0))
  50         return 1;
  51
  52     if (test__cmpdi2(0x0000000200000002LL, 0x0000000100000001LL, 2))
  53         return 1;
  54     if (test__cmpdi2(0x0000000200000002LL, 0x0000000100000002LL, 2))
  55         return 1;
  56     if (test__cmpdi2(0x0000000200000002LL, 0x0000000100000003LL, 2))
  57         return 1;
  58
  59     if (test__cmpdi2(0x0000000200000002LL, 0x0000000200000001LL, 2))
  60         return 1;
  61     if (test__cmpdi2(0x0000000200000002LL, 0x0000000200000002LL, 1))
  62         return 1;
  63     if (test__cmpdi2(0x0000000200000002LL, 0x0000000200000003LL, 0))
  64         return 1;
  65
  66    return 0;
  67 }