You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
66 lines
2.2 KiB
66 lines
2.2 KiB
// errorcheck -0 -l -m -live
|
|
|
|
// Copyright 2016 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 escape analysis and liveness inferred for uintptrescapes functions.
|
|
|
|
package p
|
|
|
|
import (
|
|
"unsafe"
|
|
)
|
|
|
|
//go:uintptrescapes
|
|
func F1(a uintptr) {} // ERROR "escaping uintptr"
|
|
|
|
//go:uintptrescapes
|
|
func F2(a ...uintptr) {} // ERROR "escaping ...uintptr"
|
|
|
|
//go:uintptrescapes
|
|
func F3(uintptr) {} // ERROR "escaping uintptr"
|
|
|
|
//go:uintptrescapes
|
|
func F4(...uintptr) {} // ERROR "escaping ...uintptr"
|
|
|
|
type T struct{}
|
|
|
|
//go:uintptrescapes
|
|
func (T) M1(a uintptr) {} // ERROR "escaping uintptr"
|
|
|
|
//go:uintptrescapes
|
|
func (T) M2(a ...uintptr) {} // ERROR "escaping ...uintptr" "leaking param: a"
|
|
|
|
func TestF1() {
|
|
var t int // ERROR "moved to heap"
|
|
F1(uintptr(unsafe.Pointer(&t))) // ERROR "live at call to F1: .?autotmp" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
|
|
}
|
|
|
|
func TestF3() {
|
|
var t2 int // ERROR "moved to heap"
|
|
F3(uintptr(unsafe.Pointer(&t2))) // ERROR "live at call to F3: .?autotmp" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
|
|
}
|
|
|
|
func TestM1() {
|
|
var t T
|
|
var v int // ERROR "moved to heap"
|
|
t.M1(uintptr(unsafe.Pointer(&v))) // ERROR "live at call to T.M1: .?autotmp" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
|
|
}
|
|
|
|
func TestF2() {
|
|
var v int // ERROR "moved to heap"
|
|
F2(0, 1, uintptr(unsafe.Pointer(&v)), 2) // ERROR "live at call to newobject: .?autotmp" "live at call to F2: .?autotmp" "escapes to heap" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
|
|
}
|
|
|
|
func TestF4() {
|
|
var v2 int // ERROR "moved to heap"
|
|
F4(0, 1, uintptr(unsafe.Pointer(&v2)), 2) // ERROR "live at call to newobject: .?autotmp" "live at call to F4: .?autotmp" "escapes to heap" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
|
|
}
|
|
|
|
func TestM2() {
|
|
var t T
|
|
var v int // ERROR "moved to heap"
|
|
t.M2(0, 1, uintptr(unsafe.Pointer(&v)), 2) // ERROR "live at call to newobject: .?autotmp" "live at call to T.M2: .?autotmp" "escapes to heap" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
|
|
}
|