1  /* PR c/70093 */
       2  /* { dg-do run } */
       3  /* { dg-options "" } */
       4  /* { dg-require-effective-target alloca } */
       5  
       6  void
       7  foo (int n)
       8  {
       9    struct S { int a[n]; };
      10  
      11    struct S
      12    fn (void)
      13    {
      14      struct S s;
      15      s.a[0] = 42;
      16      return s;
      17    }
      18  
      19    auto struct S
      20    fn2 (void)
      21    {
      22      return fn ();
      23    }
      24  
      25    struct S x;
      26    fn ();
      27    fn2 ();
      28    x = fn ();
      29  
      30    if (x.a[0] != 42)
      31      __builtin_abort ();
      32  
      33    if (fn ().a[0] != 42)
      34      __builtin_abort ();
      35  
      36    __typeof__ (fn ()) *p = &x;
      37    if (p->a[0] != 42)
      38      __builtin_abort ();
      39  
      40    if (fn2 ().a[0] != 42)
      41      __builtin_abort ();
      42  }
      43  
      44  int
      45  main (void)
      46  {
      47    foo (1);
      48  }