1  /* { dg-do compile } */
       2  /* { dg-options "-O2" } */
       3  /* { dg-require-effective-target lp64 } */
       4  unsigned long long
       5  foo (unsigned long long value)
       6  {
       7    value &= 0xffffffff;
       8    value |= value << 32;
       9    return value;
      10  }
      11  /* { dg-final { scan-assembler {\mrldimi\M} } } */