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mirror of https://github.com/golang/go synced 2024-11-17 22:05:02 -07:00
go/test/live2.go
Matthew Dempsky 42f4ccb6f9 cmd/compile/internal/reflectdata: share hmap and hiter types
There's no need for distinct hmap and hiter types for each map.

Shaves 9kB off cmd/go binary size.

Change-Id: I7bc3b2d8ec82e7fcd78c1cb17733ebd8b615990a
Reviewed-on: https://go-review.googlesource.com/c/go/+/521615
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
2023-08-21 23:29:33 +00:00

42 lines
953 B
Go

// errorcheck -0 -live -wb=0
// 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.
func printnl()
//go:noescape
func useT40(*T40)
type T40 struct {
m map[int]int
}
func newT40() *T40 {
ret := T40{}
ret.m = make(map[int]int, 42) // ERROR "live at call to makemap: &ret$"
return &ret
}
func bad40() {
t := newT40() // ERROR "stack object ret T40$" "stack object .autotmp_[0-9]+ runtime.hmap$"
printnl() // ERROR "live at call to printnl: ret$"
useT40(t)
}
func good40() {
ret := T40{} // ERROR "stack object ret T40$"
ret.m = make(map[int]int, 42) // ERROR "stack object .autotmp_[0-9]+ runtime.hmap$"
t := &ret
printnl() // ERROR "live at call to printnl: ret$"
useT40(t)
}