/* First source file in relaxation test.  */extern int bar ();static int foo2 ();int foo (int i){  switch (i)    {    case 0: bar (0); break;    case 1: bar (1); break;    case 2: bar (2); break;    case 3: bar (3); break;    case 4: bar (foo2); break;    case 5: bar (bar); break;    }  while (1)    if (i)      return bar ();}static int foo2 () { }