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go/test/live2.go
Russ Cox eb54079264 cmd/gc: fix liveness for address-taken variables in inlined functions
The 'address taken' bit in a function variable was not
propagating into the inlined copies, causing incorrect
liveness information.

LGTM=dsymonds, bradfitz
R=golang-codereviews, bradfitz
CC=dsymonds, golang-codereviews, iant, khr, r
https://golang.org/cl/96670046
2014-06-02 21:26:32 -04:00

40 lines
840 B
Go

// errorcheck -0 -live
// Copyright 2014 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.
// liveness tests with inlining ENABLED
// see also live.go.
package main
// issue 8142: lost 'addrtaken' bit on inlined variables.
// no inlining in this test, so just checking that non-inlined works.
type T40 struct {
m map[int]int
}
func newT40() *T40 {
ret := T40{ // ERROR "live at call to makemap: &ret"
make(map[int]int),
}
return &ret
}
func bad40() {
t := newT40() // ERROR "live at call to makemap: ret"
println() // ERROR "live at call to printnl: ret"
_ = t
}
func good40() {
ret := T40{ // ERROR "live at call to makemap: ret"
make(map[int]int),
}
t := &ret
println() // ERROR "live at call to printnl: ret"
_ = t
}