1  
       2  /* Avoid inclusion of alloca.h, unavailable on some systems.  */
       3  #define alloca __builtin_alloca
       4  
       5  __attribute__((noinline, noipa))
       6  void g (char* ptr, int y)
       7  {
       8    ptr[y] = '\0';
       9  }
      10  
      11  void f_caller (int y)
      12  {
      13    char* pStr = alloca(SIZE);
      14    g (pStr, y);
      15  }