mirror of
https://github.com/golang/go
synced 2024-11-17 05:04:54 -07:00
ac7efcb0ca
Updates #57410 Change-Id: Ibe1f5523a4635d2b844b9a5db94514e07eb0bc0f Reviewed-on: https://go-review.googlesource.com/c/go/+/463998 Reviewed-by: Keith Randall <khr@google.com> Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
// errorcheck -0 -m
|
|
|
|
// Copyright 2010 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.
|
|
|
|
// Test, using compiler diagnostic flags, that the escape analysis is working.
|
|
// Compiles but does not run. Inlining is enabled.
|
|
|
|
package foo
|
|
|
|
var p *int
|
|
|
|
func alloc(x int) *int { // ERROR "can inline alloc" "moved to heap: x"
|
|
return &x
|
|
}
|
|
|
|
var f func()
|
|
|
|
func f1() {
|
|
p = alloc(2) // ERROR "inlining call to alloc" "moved to heap: x"
|
|
|
|
// Escape analysis used to miss inlined code in closures.
|
|
|
|
func() { // ERROR "can inline f1.func1"
|
|
p = alloc(3) // ERROR "inlining call to alloc"
|
|
}() // ERROR "inlining call to f1.func1" "inlining call to alloc" "moved to heap: x"
|
|
|
|
f = func() { // ERROR "func literal escapes to heap" "can inline f1.func2"
|
|
p = alloc(3) // ERROR "inlining call to alloc" "moved to heap: x"
|
|
}
|
|
f()
|
|
}
|
|
|
|
func f2() {} // ERROR "can inline f2"
|
|
|
|
// No inline for recover; panic now allowed to inline.
|
|
func f3() { panic(1) } // ERROR "can inline f3" "1 escapes to heap"
|
|
func f4() { recover() }
|
|
|
|
func f5() *byte { // ERROR "can inline f5"
|
|
type T struct {
|
|
x [1]byte
|
|
}
|
|
t := new(T) // ERROR "new.T. escapes to heap"
|
|
return &t.x[0]
|
|
}
|
|
|
|
func f6() *byte { // ERROR "can inline f6"
|
|
type T struct {
|
|
x struct {
|
|
y byte
|
|
}
|
|
}
|
|
t := new(T) // ERROR "new.T. escapes to heap"
|
|
return &t.x.y
|
|
}
|