1// compile
2
3// Copyright 2016 The Go Authors. All rights reserved.
4// Use of this source code is governed by a BSD-style
5// license that can be found in the LICENSE file.
6
7package y
8
9type symSet []int
10
11//go:noinline
12func (s symSet) len() (r int) {
13	return 0
14}
15
16func f(m map[int]symSet) {
17	var symSet []int
18	for _, x := range symSet {
19		m[x] = nil
20	}
21}
22