1  /* This testcase triggered an attempt to reload a byte value into an
       2     address register.  */
       3  extern volatile unsigned char x[];
       4  
       5  #define DECLARE(I) orig##I, inc##I
       6  #define READ(I) orig##I = x[I]
       7  #define INC(I) inc##I = orig##I + 1
       8  #define WRITE1(I) x[I] = orig##I
       9  #define WRITE2(I) x[I] = inc##I
      10  
      11  #define REPEAT(X) X(0), X(1), X(2), X(3), X(4), X(5), X(6), X(7), X(8)
      12  
      13  void foo (void)
      14  {
      15    unsigned char REPEAT (DECLARE);
      16    REPEAT (READ);
      17    REPEAT (INC);
      18    REPEAT (WRITE1);
      19    REPEAT (WRITE2);
      20  }