github.com/sbinet/go@v0.0.0-20160827155028-54d7de7dd62b/test/live2.go (about)

     1  // +build !amd64
     2  // errorcheck -0 -live -wb=0
     3  
     4  // Copyright 2014 The Go Authors. All rights reserved.
     5  // Use of this source code is governed by a BSD-style
     6  // license that can be found in the LICENSE file.
     7  
     8  // liveness tests with inlining ENABLED
     9  // see also live.go.
    10  
    11  package main
    12  
    13  // issue 8142: lost 'addrtaken' bit on inlined variables.
    14  // no inlining in this test, so just checking that non-inlined works.
    15  
    16  func printnl()
    17  
    18  type T40 struct {
    19  	m map[int]int
    20  }
    21  
    22  func newT40() *T40 {
    23  	ret := T40{}
    24  	ret.m = make(map[int]int) // ERROR "live at call to makemap: &ret"
    25  	return &ret
    26  }
    27  
    28  func bad40() {
    29  	t := newT40() // ERROR "live at call to makemap: autotmp_.* ret"
    30  	printnl()     // ERROR "live at call to printnl: autotmp_.* ret"
    31  	_ = t
    32  }
    33  
    34  func good40() {
    35  	ret := T40{}
    36  	ret.m = make(map[int]int) // ERROR "live at call to makemap: autotmp_.* ret"
    37  	t := &ret
    38  	printnl() // ERROR "live at call to printnl: autotmp_.* ret"
    39  	_ = t
    40  }