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34 lines
799 B
Go
34 lines
799 B
Go
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// errorcheck -0 -m -l
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// Copyright 2019 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Test escape analysis for runtime/internal/atomic.
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package escape
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import (
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"runtime/internal/atomic"
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"unsafe"
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)
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// BAD: should be "leaking param content".
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func Loadp(addr unsafe.Pointer) unsafe.Pointer { // ERROR "leaking param: addr"
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return atomic.Loadp(addr)
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}
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var ptr unsafe.Pointer
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func Storep() {
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var x int // ERROR "moved to heap: x"
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atomic.StorepNoWB(unsafe.Pointer(&ptr), unsafe.Pointer(&x))
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}
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func Casp1() {
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// BAD: x doesn't need to be heap allocated
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var x int // ERROR "moved to heap: x"
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var y int // ERROR "moved to heap: y"
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atomic.Casp1(&ptr, unsafe.Pointer(&x), unsafe.Pointer(&y))
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}
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