go source for verification 2026-05-22

test/fixedbugs/issue15902.go

@@ -0,0 +1,27 @@
+// 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.
+
+// This test makes sure we don't use 4-byte unaligned writes
+// to zero memory on architectures that don't support them.
+
+package main
+
+type T struct {
+	a byte
+	b [10]byte
+}
+
+//go:noinline
+func f(t *T) {
+	// t will be aligned, so &t.b won't be.
+	t.b = [10]byte{}
+}
+
+var t T
+
+func main() {
+	f(&t)
+}