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// $G $D/$F.go && $L $F.$A && ./$A.out

// Copyright 2011 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.

// Test run-time behavior of escape analysis-related optimizations.

package main

func main() {

        test1()

}

func test1() {

        check1(0)

        check1(1)

        check1(2)

}

type T1 struct {

        X, Y, Z int

}

func f() int {

        return 1

}

func check1(pass int) T1 {

        v := []T1{{X: f(), Z: f()}}

        if v[0].Y != 0 {

                panic("nonzero init")

        }

        v[0].Y = pass

        return v[0]

}