gcc/testsuite/gcc.c-torture/execute/961122-1.c

   1 long long acc;
   2
   3 addhi (short a)
   4 {
   5   acc += (long long) a << 32;
   6 }
   7
   8 subhi (short a)
   9 {
  10   acc -= (long long) a << 32;
  11 }
  12
  13 main ()
  14 {
  15   acc = 0xffff00000000ll;
  16   addhi (1);
  17   if (acc != 0x1000000000000ll)
  18     abort ();
  19   subhi (1);
  20   if (acc != 0xffff00000000ll)
  21     abort ();
  22   exit (0);
  23 }