1  /* { dg-do assemble } */
       2  /* { dg-options "-O2" } */
       3  
       4  /* Checking that the "b" constraint is accepted, for all target variants.  */
       5  
       6  long sys_ipc (void)
       7  {
       8    long __gu_err = -14;
       9    long dummy_for_get_user_asm_64_;
      10    __asm__ __volatile__( "move.d [%1+],%0\n"
      11  			: "=r" (__gu_err), "=b" (dummy_for_get_user_asm_64_)
      12  			: "0" (__gu_err));
      13  
      14    return __gu_err;
      15  }