compiler-rt/test/builtins/Unit/ucmpti2_test.c

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_ucmpti2
   3 // REQUIRES: int128
   4
   5 #include "int_lib.h"
   6 #include <stdio.h>
   7
   8 #ifdef CRT_HAS_128BIT
   9
  10 // Returns:  if (a <  b) returns 0
  11 //           if (a == b) returns 1
  12 //           if (a >  b) returns 2
  13
  14 COMPILER_RT_ABI si_int __ucmpti2(tu_int a, tu_int b);
  15
  16 int test__ucmpti2(tu_int a, tu_int b, si_int expected)
  17 {
  18     si_int x = __ucmpti2(a, b);
  19     if (x != expected)
  20     {
  21         utwords at;
  22         at.all = a;
  23         utwords bt;
  24         bt.all = b;
  25         printf("error in __ucmpti2(0x%.16llX%.16llX, 0x%.16llX%.16llX) = %d, "
  26                "expected %d\n",
  27                at.s.high, at.s.low, bt.s.high, bt.s.low, x, expected);
  28     }
  29     return x != expected;
  30 }
  31
  32 #endif
  33
  34 int main()
  35 {
  36 #ifdef CRT_HAS_128BIT
  37     if (test__ucmpti2(0, 0, 1))
  38         return 1;
  39     if (test__ucmpti2(1, 1, 1))
  40         return 1;
  41     if (test__ucmpti2(2, 2, 1))
  42         return 1;
  43     if (test__ucmpti2(0x7FFFFFFF, 0x7FFFFFFF, 1))
  44         return 1;
  45     if (test__ucmpti2(0x80000000, 0x80000000, 1))
  46         return 1;
  47     if (test__ucmpti2(0x80000001, 0x80000001, 1))
  48         return 1;
  49     if (test__ucmpti2(0xFFFFFFFF, 0xFFFFFFFF, 1))
  50         return 1;
  51     if (test__ucmpti2(0x000000010000000LL, 0x000000010000000LL, 1))
  52         return 1;
  53     if (test__ucmpti2(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL, 1))
  54         return 1;
  55
  56     if (test__ucmpti2(0x0000000200000002LL, 0x0000000300000001LL, 0))
  57         return 1;
  58     if (test__ucmpti2(0x0000000200000002LL, 0x0000000300000002LL, 0))
  59         return 1;
  60     if (test__ucmpti2(0x0000000200000002LL, 0x0000000300000003LL, 0))
  61         return 1;
  62
  63     if (test__ucmpti2(0x0000000200000002LL, 0x0000000100000001LL, 2))
  64         return 1;
  65     if (test__ucmpti2(0x0000000200000002LL, 0x0000000100000002LL, 2))
  66         return 1;
  67     if (test__ucmpti2(0x0000000200000002LL, 0x0000000100000003LL, 2))
  68         return 1;
  69
  70     if (test__ucmpti2(0x0000000200000002LL, 0x0000000200000001LL, 2))
  71         return 1;
  72     if (test__ucmpti2(0x0000000200000002LL, 0x0000000200000002LL, 1))
  73         return 1;
  74     if (test__ucmpti2(0x0000000200000002LL, 0x0000000200000003LL, 0))
  75         return 1;
  76
  77     if (test__ucmpti2(make_tu(0x0000000000000001uLL, 0x0000000000000000uLL),
  78                       make_tu(0x0000000000000000uLL, 0xFFFFFFFFFFFFFFFFuLL), 2))
  79         return 1;
  80     if (test__ucmpti2(make_tu(0x0000000000000001uLL, 0x0000000000000000uLL),
  81                       make_tu(0x0000000000000001uLL, 0x0000000000000000uLL), 1))
  82         return 1;
  83     if (test__ucmpti2(make_tu(0x0000000000000001uLL, 0x0000000000000000uLL),
  84                       make_tu(0x0000000000000001uLL, 0x0000000000000001uLL), 0))
  85         return 1;
  86
  87     if (test__ucmpti2(make_tu(0x8000000000000000uLL, 0x0000000000000000uLL),
  88                       make_tu(0x7FFFFFFFFFFFFFFFuLL, 0xFFFFFFFFFFFFFFFFuLL), 2))
  89         return 1;
  90     if (test__ucmpti2(make_tu(0x8000000000000000uLL, 0x0000000000000000uLL),
  91                       make_tu(0x8000000000000000uLL, 0x0000000000000000uLL), 1))
  92         return 1;
  93     if (test__ucmpti2(make_tu(0x8000000000000000uLL, 0x0000000000000000uLL),
  94                       make_tu(0x8000000000000000uLL, 0x0000000000000001uLL), 0))
  95         return 1;
  96
  97     if (test__ucmpti2(make_tu(0xFFFFFFFFFFFFFFFFuLL, 0xFFFFFFFFFFFFFFFFuLL),
  98                       make_tu(0xFFFFFFFFFFFFFFFFuLL, 0xFFFFFFFFFFFFFFFEuLL), 2))
  99         return 1;
 100     if (test__ucmpti2(make_tu(0xFFFFFFFFFFFFFFFFuLL, 0xFFFFFFFFFFFFFFFFuLL),
 101                       make_tu(0xFFFFFFFFFFFFFFFFuLL, 0xFFFFFFFFFFFFFFFFuLL), 1))
 102         return 1;
 103 #else
 104     printf("skipped\n");
 105 #endif
 106    return 0;
 107 }