mirror of
https://github.com/golang/go
synced 2024-11-18 01:04:48 -07:00
40 lines
1.0 KiB
Go
40 lines
1.0 KiB
Go
// errchk -0 $G -m $D/$F.go
|
|
|
|
// 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 // ERROR "&x escapes to heap"
|
|
}
|
|
|
|
var f func()
|
|
|
|
func f1() {
|
|
p = alloc(2) // ERROR "inlining call to alloc" "&x escapes to heap" "moved to heap: x"
|
|
|
|
// Escape analysis used to miss inlined code in closures.
|
|
|
|
func() { // ERROR "func literal does not escape"
|
|
p = alloc(3) // ERROR "inlining call to alloc" "&x escapes to heap" "moved to heap: x"
|
|
}()
|
|
|
|
f = func() { // ERROR "func literal escapes to heap"
|
|
p = alloc(3) // ERROR "inlining call to alloc" "&x escapes to heap" "moved to heap: x"
|
|
}
|
|
f()
|
|
}
|
|
|
|
func f2() {} // ERROR "can inline f2"
|
|
|
|
// No inline for panic, recover.
|
|
func f3() { panic(1) }
|
|
func f4() { recover() }
|