// run

// Copyright 2021 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.

package main

import "fmt"

type Z struct {
}

type NZ struct {
	x, y int
}

//go:noinline
func f(x,y int) (Z,NZ,Z) {
	var z Z
	return z,NZ{x,y},z
}

//go:noinline
func g() (Z,NZ,Z) {
	a,b,c := f(3,4)
	return c,b,a
}

func main() {
	_,b,_ := g()
	fmt.Println(b.x+b.y)
}
