/usr/share/go-1.8/test/fixedbugs/issue16985.go is in golang-1.8-src 1.8.3-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | // run
// 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.
// issue 16985: intrinsified AMD64 atomic ops should clobber flags
package main
import "sync/atomic"
var count uint32
func main() {
buffer := []byte("T")
for i := 0; i < len(buffer); {
atomic.AddUint32(&count, 1)
_ = buffer[i]
i++
i++
}
for i := 0; i < len(buffer); {
atomic.CompareAndSwapUint32(&count, 0, 1)
_ = buffer[i]
i++
i++
}
for i := 0; i < len(buffer); {
atomic.SwapUint32(&count, 1)
_ = buffer[i]
i++
i++
}
}
|