gcc/testsuite/gcc.c-torture/execute/pr44683.c

   1 int __attribute__((noinline,noclone))
   2 copysign_bug (double x)
   3 {
   4   if (x != 0.0 && (x * 0.5 == x))
   5     return 1;
   6   if (__builtin_copysign(1.0, x) < 0.0)
   7     return 2;
   8   else
   9     return 3;
  10 }
  11 int main(void)
  12 {
  13   double x = -0.0;
  14   if (copysign_bug (x) != 2)
  15     __builtin_abort ();
  16   return 0;
  17 }
  18