1  /* PR rtl-optimization/29631 */
       2  /* Origin: Falk Hueffner <falk@debian.org> */
       3  
       4  const signed char nunmap[] = { 17, -1, 1 };
       5  
       6  __attribute__((noinline))
       7  void ff(int i) {
       8      asm volatile("");
       9  }
      10  
      11  __attribute__((noinline))
      12  void f(short delta)
      13  {
      14      short p0 = 2, s;
      15      for (s = 0; s < 2; s++)
      16      {
      17          p0 += delta;
      18          ff(s);
      19          if (nunmap[p0] == 17)
      20              asm volatile("");
      21      }
      22  }
      23  
      24  int main(void)
      25  {
      26      f(-1);
      27      return 0;
      28  }