author | mchung |
Mon, 22 Oct 2018 17:00:04 -0700 | |
changeset 52220 | 9c260a6b6471 |
parent 47216 | 71c04702a3d5 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2015, 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 8142386 |
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* @summary Unsafe access to an array is wrongly marked as mismatched |
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* @modules java.base/jdk.internal.misc |
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* |
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* @run main/othervm -XX:-UseOnStackReplacement -XX:-BackgroundCompilation -XX:-TieredCompilation |
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* compiler.intrinsics.unsafe.TestUnsafeMismatchedArrayFieldAccess |
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*/ |
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package compiler.intrinsics.unsafe; |
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import jdk.internal.misc.Unsafe; |
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public class TestUnsafeMismatchedArrayFieldAccess { |
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private static final Unsafe UNSAFE = Unsafe.getUnsafe(); |
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static { |
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try { |
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array_offset = UNSAFE.objectFieldOffset(TestUnsafeMismatchedArrayFieldAccess.class.getDeclaredField("array")); |
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} |
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catch (Exception e) { |
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throw new AssertionError(e); |
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} |
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} |
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int[] array; |
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static final long array_offset; |
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void m() { |
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UNSAFE.getReference(this, array_offset); |
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} |
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static public void main(String[] args) { |
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TestUnsafeMismatchedArrayFieldAccess test = new TestUnsafeMismatchedArrayFieldAccess(); |
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for (int i = 0; i < 20000; i++) { |
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test.m(); |
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} |
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} |
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} |