gcc/testsuite/gcc.dg/dfp/pr108068.c

   1 /* PR tree-optimization/108068 */
   2 /* { dg-options "-O2" } */
   3
   4 int
   5 main ()
   6 {
   7   _Decimal64 x = -1;
   8   while (x != 0)
   9     x /= 10;
  10   double d = x;
  11   if (!__builtin_signbit (d))
  12     __builtin_abort ();
  13 }