/* { dg-do compile } */
/* { dg-require-effective-target ti_c64xp } */
/* { dg-options "-O2" } */
/* { dg-final { scan-assembler "dpackx" } } */

#include <stdlib.h>

unsigned long long z = 0x012389ab4567cdefull;

int main ()
{
  unsigned long long z2 = (z << 48) | (z >> 16);
  if (z2 != 0xcdef012389ab4567ull)
    abort ();
  exit (0);
}