1int g1;
2int g2;
3
4foo ()
5{
6  int i = 1;
7  int x;
8
9  x = g1;
10  (*(&g1 + i - 1)) = x + 1;
11  x = g1;
12  (*(&g1 + i - 1)) = x + 1;
13  g1++;
14}
15