58 lines
1.8 KiB
Java
58 lines
1.8 KiB
Java
/*
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* Copyright (c) 2010, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @bug 6968348
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* @summary Byteswapped memory access can point to wrong location after JIT
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* @modules java.base/jdk.internal.misc
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*
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* @run main compiler.c2.Test6968348
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*/
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package compiler.c2;
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import jdk.internal.misc.Unsafe;
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import java.lang.reflect.Field;
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public class Test6968348 {
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static Unsafe unsafe = Unsafe.getUnsafe();
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static final long[] buffer = new long[4096];
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static int array_long_base_offset;
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public static void main(String[] args) throws Exception {
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array_long_base_offset = unsafe.arrayBaseOffset(long[].class);
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for (int n = 0; n < 100000; n++) {
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test();
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}
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}
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public static void test() {
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for (long i = array_long_base_offset; i < 4096; i += 8) {
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unsafe.putLong(buffer, i, Long.reverseBytes(i));
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}
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}
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}
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