modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/execute/pr58209.c (about)

     1  /* PR tree-optimization/58209 */
     2  
     3  extern void abort (void);
     4  typedef __INTPTR_TYPE__ T;
     5  T buf[1024];
     6  
     7  T *
     8  foo (T n)
     9  {
    10    if (n == 0)
    11      return (T *) buf;
    12    T s = (T) foo (n - 1);
    13    return (T *) (s + sizeof (T));
    14  }
    15  
    16  T *
    17  bar (T n)
    18  {
    19    if (n == 0)
    20      return buf;
    21    return foo (n - 1) + 1;
    22  }
    23  
    24  int
    25  main ()
    26  {
    27    int i;
    28    for (i = 0; i < 27; i++)
    29      if (foo (i) != buf + i || bar (i) != buf + i)
    30        abort ();
    31    return 0;
    32  }