mirror of
https://github.com/golang/go
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29 lines
550 B
Go
29 lines
550 B
Go
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// Copyright 2022 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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package main
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import (
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"fmt"
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"unsafe"
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)
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func main() {
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a := 1
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b := 2
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c := add(a, b)
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d := a + b
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fmt.Println(c, d)
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}
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//go:noinline
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func add(a1, b1 int) (ret int) {
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// The return value
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// When -asan is enabled, the unsafe.Pointer(&ret) conversion is escaping.
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var p *int = (*int)(unsafe.Add(unsafe.Pointer(&ret), 1*unsafe.Sizeof(int(1))))
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*p = 123 // BOOM
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ret = a1 + b1
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return
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}
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