1  /* { dg-do compile } */
       2  /* { dg-require-effective-target alloca } */
       3  /* { dg-options "-Walloca-larger-than=5000 -O2" } */
       4  
       5  extern void useit(char *);
       6  
       7  int
       8  foobar (unsigned short length)
       9  {
      10    char *pbuf;
      11    __SIZE_TYPE__ size = (__SIZE_TYPE__) length;
      12  
      13    if (size < 4032)
      14      pbuf = (char *) __builtin_alloca(size);
      15    else
      16      pbuf = (char *) __builtin_malloc (size);
      17  
      18    useit(pbuf);
      19    return 0;
      20  }