s.store(types.Types[types.TINT], lenaddr, l)
	}

	// Evaluate args
	type argRec struct {
		// if store is true, we're appending the value v.  If false, we're appending the
		// value at *v.
		v     *ssa.Value
		store bool
	}
	args := make([]argRec, 0, len(n.Args[1:]))
	for _, n := range n.Args[1:] {
		if ssa.CanSSA(n.Type()) {

                description: 'ChainInsertMode controls whether Felix hooks the kernel''s
                  top-level iptables chains by inserting a rule at the top of the
                  chain or by appending a rule at the bottom. insert is the safe default
                  since it prevents Calico''s rules from being bypassed. If you switch
                  to append mode, be sure that the other rules in the chains signal

The built-in functions do not have standard Go types,
so they can only appear in <a href="#Calls">call expressions</a>;
they cannot be used as function values.
</p>


<h3 id="Appending_and_copying_slices">Appending to and copying slices</h3>

<p>
The built-in functions <code>append</code> and <code>copy</code> assist in
common slice operations.
For both functions, the result is independent of whether the memory referenced