sys/external/bsd/compiler_rt/dist/test/Unit/negdi2_test.c

   1 //===-- negdi2_test.c - Test __negdi2 -------------------------------------===//
   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 __negdi2 for the compiler_rt library.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "int_lib.h"
  15 #include <stdio.h>
  16
  17 // Returns: -a
  18
  19 di_int __negdi2(di_int a);
  20
  21 int test__negdi2(di_int a, di_int expected)
  22 {
  23     di_int x = __negdi2(a);
  24     if (x != expected)
  25         printf("error in __negdi2: -0x%llX = 0x%llX, expected 0x%llX\n",
  26                a, 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__negdi2(0, 0))
  35         return 1;
  36     if (test__negdi2(1, -1))
  37         return 1;
  38     if (test__negdi2(-1, 1))
  39         return 1;
  40     if (test__negdi2(2, -2))
  41         return 1;
  42     if (test__negdi2(-2, 2))
  43         return 1;
  44     if (test__negdi2(3, -3))
  45         return 1;
  46     if (test__negdi2(-3, 3))
  47         return 1;
  48     if (test__negdi2(0x00000000FFFFFFFELL, 0xFFFFFFFF00000002LL))
  49         return 1;
  50     if (test__negdi2(0xFFFFFFFF00000002LL, 0x00000000FFFFFFFELL))
  51         return 1;
  52     if (test__negdi2(0x00000000FFFFFFFFLL, 0xFFFFFFFF00000001LL))
  53         return 1;
  54     if (test__negdi2(0xFFFFFFFF00000001LL, 0x00000000FFFFFFFFLL))
  55         return 1;
  56     if (test__negdi2(0x0000000100000000LL, 0xFFFFFFFF00000000LL))
  57         return 1;
  58     if (test__negdi2(0xFFFFFFFF00000000LL, 0x0000000100000000LL))
  59         return 1;
  60     if (test__negdi2(0x0000000200000000LL, 0xFFFFFFFE00000000LL))
  61         return 1;
  62     if (test__negdi2(0xFFFFFFFE00000000LL, 0x0000000200000000LL))
  63         return 1;
  64     if (test__negdi2(0x0000000300000000LL, 0xFFFFFFFD00000000LL))
  65         return 1;
  66     if (test__negdi2(0xFFFFFFFD00000000LL, 0x0000000300000000LL))
  67         return 1;
  68     if (test__negdi2(0x8000000000000000LL, 0x8000000000000000LL))
  69         return 1;
  70     if (test__negdi2(0x8000000000000001LL, 0x7FFFFFFFFFFFFFFFLL))
  71         return 1;
  72     if (test__negdi2(0x7FFFFFFFFFFFFFFFLL, 0x8000000000000001LL))
  73         return 1;
  74     if (test__negdi2(0xFFFFFFFE00000000LL, 0x0000000200000000LL))
  75         return 1;
  76     if (test__negdi2(0x0000000200000000LL, 0xFFFFFFFE00000000LL))
  77         return 1;
  78     if (test__negdi2(0xFFFFFFFF00000000LL, 0x0000000100000000LL))
  79         return 1;
  80     if (test__negdi2(0x0000000100000000LL, 0xFFFFFFFF00000000LL))
  81         return 1;
  82
  83    return 0;
  84 }