71 lines
2.2 KiB
Java
71 lines
2.2 KiB
Java
/*
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* Copyright (c) 2023, 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 8300258
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* @modules java.base/jdk.internal.misc
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*
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* @run main/othervm -XX:-TieredCompilation -Xbatch TestOverlappingMismatchedAccesses
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*/
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import jdk.internal.misc.Unsafe;
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public class TestOverlappingMismatchedAccesses {
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static int N = 50;
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static int gold[] = new int[N];
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static Unsafe unsafe = Unsafe.getUnsafe();
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public static void main(String[] strArr) {
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init(gold);
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test(gold);
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for (int i = 0; i < 10_000; i++){
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int[] data = new int[N];
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init(data);
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test(data);
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verify(data, gold);
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}
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}
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static void test(int[] data) {
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for (int i = 2; i < N-2; i++) {
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int v = data[i];
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unsafe.putFloat(data, unsafe.ARRAY_BYTE_BASE_OFFSET + 4 * i + 8, v + 5);
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}
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}
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static void init(int[] data) {
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for (int j = 0; j < N; j++) {
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data[j] = j;
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}
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}
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static void verify(int[] data, int[] gold) {
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for (int i = 0; i < N; i++) {
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if (data[i] != gold[i]) {
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throw new RuntimeException(" Invalid result: dataI[" + i + "]: " + data[i] + " != " + gold[i]);
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}
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}
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}
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}
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