1// run
2
3// Copyright 2014 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
7// issue 8039. defer copy(x, <-c) did not rewrite <-c properly.
8
9package main
10
11func f(s []int) {
12	c := make(chan []int, 1)
13	c <- []int{1}
14	defer copy(s, <-c)
15}
16
17func main() {
18	x := make([]int, 1)
19	f(x)
20	if x[0] != 1 {
21		println("BUG", x[0])
22	}
23}
24