1  /* { dg-require-effective-target alloca } */
       2  void zzz (char *s1, char *s2, int len, int *q)
       3  {
       4    int z = 5;
       5    unsigned int i,  b;
       6    struct { char a[z]; } x;
       7            
       8    for (i = 0; i < len; i++)
       9      s1[i] = s2[i];
      10  
      11    b = z & 0x3;
      12  
      13    len += (b == 0 ? 0 : 1) + z;
      14      
      15    *q = len;
      16  
      17    foo (x, x);
      18  }