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