compiler-rt/test/builtins/Unit/negdi2_test.c

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_negdi2
   3
   4 #include "int_lib.h"
   5 #include <stdio.h>
   6
   7 // Returns: -a
   8
   9 COMPILER_RT_ABI di_int __negdi2(di_int a);
  10
  11 int test__negdi2(di_int a, di_int expected)
  12 {
  13     di_int x = __negdi2(a);
  14     if (x != expected)
  15         printf("error in __negdi2: -0x%llX = 0x%llX, expected 0x%llX\n",
  16                a, x, expected);
  17     return x != expected;
  18 }
  19
  20 char assumption_1[sizeof(di_int) == 2*sizeof(si_int)] = {0};
  21
  22 int main()
  23 {
  24     if (test__negdi2(0, 0))
  25         return 1;
  26     if (test__negdi2(1, -1))
  27         return 1;
  28     if (test__negdi2(-1, 1))
  29         return 1;
  30     if (test__negdi2(2, -2))
  31         return 1;
  32     if (test__negdi2(-2, 2))
  33         return 1;
  34     if (test__negdi2(3, -3))
  35         return 1;
  36     if (test__negdi2(-3, 3))
  37         return 1;
  38     if (test__negdi2(0x00000000FFFFFFFELL, 0xFFFFFFFF00000002LL))
  39         return 1;
  40     if (test__negdi2(0xFFFFFFFF00000002LL, 0x00000000FFFFFFFELL))
  41         return 1;
  42     if (test__negdi2(0x00000000FFFFFFFFLL, 0xFFFFFFFF00000001LL))
  43         return 1;
  44     if (test__negdi2(0xFFFFFFFF00000001LL, 0x00000000FFFFFFFFLL))
  45         return 1;
  46     if (test__negdi2(0x0000000100000000LL, 0xFFFFFFFF00000000LL))
  47         return 1;
  48     if (test__negdi2(0xFFFFFFFF00000000LL, 0x0000000100000000LL))
  49         return 1;
  50     if (test__negdi2(0x0000000200000000LL, 0xFFFFFFFE00000000LL))
  51         return 1;
  52     if (test__negdi2(0xFFFFFFFE00000000LL, 0x0000000200000000LL))
  53         return 1;
  54     if (test__negdi2(0x0000000300000000LL, 0xFFFFFFFD00000000LL))
  55         return 1;
  56     if (test__negdi2(0xFFFFFFFD00000000LL, 0x0000000300000000LL))
  57         return 1;
  58     if (test__negdi2(0x8000000000000000LL, 0x8000000000000000LL))
  59         return 1;
  60     if (test__negdi2(0x8000000000000001LL, 0x7FFFFFFFFFFFFFFFLL))
  61         return 1;
  62     if (test__negdi2(0x7FFFFFFFFFFFFFFFLL, 0x8000000000000001LL))
  63         return 1;
  64     if (test__negdi2(0xFFFFFFFE00000000LL, 0x0000000200000000LL))
  65         return 1;
  66     if (test__negdi2(0x0000000200000000LL, 0xFFFFFFFE00000000LL))
  67         return 1;
  68     if (test__negdi2(0xFFFFFFFF00000000LL, 0x0000000100000000LL))
  69         return 1;
  70     if (test__negdi2(0x0000000100000000LL, 0xFFFFFFFF00000000LL))
  71         return 1;
  72
  73    return 0;
  74 }