/* Distilled from optimization/863.  */extern void abort (void);extern void exit (int);extern void ok (int);typedef struct{  int x, y, z;} Data;void find (Data *first, Data *last){  int i;  for (i = (last - first) >> 2; i > 0; --i)    ok(i);  abort ();}void ok(int i){  if (i != 1)    abort ();  exit (0);}intmain (){  Data DataList[4];  find (DataList + 0, DataList + 4);}