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52fe472472
If memory might be unaligned, zero it one byte at a time instead of 4 bytes at a time. Fixes #15902 Change-Id: I4eff0840e042e2f137c1a4028f08793eb7dfd703 Reviewed-on: https://go-review.googlesource.com/23587 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Minux Ma <minux@golang.org>
28 lines
467 B
Go
28 lines
467 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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// This test makes sure we don't use 4-byte unaligned writes
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// to zero memory on architectures that don't support them.
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package main
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type T struct {
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a byte
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b [10]byte
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}
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//go:noinline
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func f(t *T) {
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// t will be aligned, so &t.b won't be.
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t.b = [10]byte{}
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}
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var t T
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func main() {
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f(&t)
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}
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