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// run
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Exchanging two struct fields was compiled incorrectly.
package main
type S struct {
i int
}
func F(c bool, s1, s2 S) (int, int) {
if c {
s1.i, s2.i = s2.i, s1.i
}
return s1.i, s2.i
}
func main() {
i, j := F(true, S{1}, S{20})
if i != 20 || j != 1 {
panic(i+j)
}
}