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      1 //===-- negdi2_test.c - Test __negdi2 -------------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. 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 }
     85