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
7// Test the run-time behavior of escape analysis-related optimizations.
8
9package main
10
11func main() {
12	test1()
13}
14
15func test1() {
16	check1(0)
17	check1(1)
18	check1(2)
19}
20
21type T1 struct {
22	X, Y, Z int
23}
24
25func f() int {
26	return 1
27}
28
29func check1(pass int) T1 {
30	v := []T1{{X: f(), Z: f()}}
31	if v[0].Y != 0 {
32		panic("nonzero init")
33	}
34	v[0].Y = pass
35	return v[0]
36}
37