/* PR middle-end/23848 */
/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-optimized" } */
/* { dg-require-effective-target alloca } */

void bar (int, char *, char *, char *, char *, int);
void foo (int size)
{
  int i;
  for (i = 0; i < size; i++)
    {
      char temp[size];
      temp[size-1] = '\0';
      {
	char temp2[size];
	{
	  char temp3[size];
	  {
	    char temp4[size];
	    bar (i, temp, temp2, temp3, temp4, size);
	  }
	}
      }
    }
}

/* { dg-final { scan-tree-dump-times "__builtin_stack_save" 1 "optimized"} } */
/* { dg-final { scan-tree-dump-times "__builtin_stack_restore" 1 "optimized"} } */