mirror of
https://github.com/golang/go
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41 lines
661 B
Go
41 lines
661 B
Go
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// run
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// Copyright 2021 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 "fmt"
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type T [8]*int
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//go:noinline
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func f(x int) T {
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return T{}
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}
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//go:noinline
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func g(x int, t T) {
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if t != (T{}) {
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panic(fmt.Sprintf("bad: %v", t))
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}
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}
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func main() {
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const N = 10000
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var q T
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func() {
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for i := 0; i < N; i++ {
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q = f(0)
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g(0, q)
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sink = make([]byte, 1024)
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}
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}()
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// Note that the closure is a trick to get the write to q to be a
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// write to a pointer that is known to be non-nil and requires
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// a write barrier.
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}
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var sink []byte
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