зеркало из https://github.com/CryptoPro/go.git
39 строки
769 B
Go
39 строки
769 B
Go
// run
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// Copyright 2016 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 to make sure we don't think values are dead
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// when they are assigned to a PPARAMOUT slot before
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// the last GC safepoint.
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package main
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import (
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"fmt"
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"runtime"
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)
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// When a T is deallocated, T[1] is certain to
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// get clobbered (the runtime writes 0xdeaddeaddeaddead there).
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type T [4]int
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func f() (r, s *T) {
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r = &T{0x30, 0x31, 0x32, 0x33}
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runtime.GC()
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s = &T{0x40, 0x41, 0x42, 0x43}
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runtime.GC()
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return
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}
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func main() {
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r, s := f()
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if r[1] != 0x31 {
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fmt.Printf("bad r[1], want 0x31 got %x\n", r[1])
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}
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if s[1] != 0x41 {
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fmt.Printf("bad s[1], want 0x41 got %x\n", s[1])
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}
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}
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