/usr/share/go-1.8/test/fixedbugs/issue14591.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 38 | // 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.
// Test to make sure we don't think values are dead
// when they are assigned to a PPARAMOUT slot before
// the last GC safepoint.
package main
import (
"fmt"
"runtime"
)
// When a T is deallocated, T[1] is certain to
// get clobbered (the runtime writes 0xdeaddeaddeaddead there).
type T [4]int
func f() (r, s *T) {
r = &T{0x30, 0x31, 0x32, 0x33}
runtime.GC()
s = &T{0x40, 0x41, 0x42, 0x43}
runtime.GC()
return
}
func main() {
r, s := f()
if r[1] != 0x31 {
fmt.Printf("bad r[1], want 0x31 got %x\n", r[1])
}
if s[1] != 0x41 {
fmt.Printf("bad s[1], want 0x41 got %x\n", s[1])
}
}
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