1 /* This testcase exposed the same bug as PR 15342.  */
2 /* { dg-options "-O2 -frename-registers -fno-schedule-insns" } */
3 
4 void *memcpy (void *, const void *, __SIZE_TYPE__);
5 
f(int n,int (* x)[4])6 void f (int n, int (*x)[4])
7 {
8   while (n--)
9     {
10       int f = x[0][0];
11       if (f <= 0)
12 	memcpy (&x[1], &x[0], sizeof (x[0]));
13       else
14 	memcpy (&x[f], &x[0], sizeof (x[0]));
15       f = x[0][2];
16       x[0][1] = f;
17     }
18 }
19