1// run
2
3// Copyright 2011 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 main
8
9func main() {
10	x := []uint{0}
11	x[0] &^= f()
12}
13
14func f() uint {
15	return 1<<31 // doesn't panic with 1<<31 - 1
16}
17