1  /* { dg-do compile { target { lp64 } } } */
       2  /* { dg-options "-march=z196 -O2" } */
       3  
       4  extern void bar(int *mem);
       5  
       6  void foo4(int *mem)
       7  {
       8    int oldval = 0;
       9    if (!__atomic_compare_exchange_n (mem, (void *) &oldval, 1,
      10  				    1, __ATOMIC_ACQUIRE, __ATOMIC_RELAXED))
      11      {
      12        bar (mem);
      13      }
      14  }
      15  
      16  /* { dg-final { scan-assembler {(?n)\n\tlt\t.*\n\tjne\t(\.L\d+)\n(.*\n)*\tcs\t.*\n\tber\t%r14\n\1:\n\tjg\tbar(@PLT)?\n} } } */