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/*
* Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 8300258
* @modules java.base/jdk.internal.misc
*
* @run main/othervm -XX:-TieredCompilation -Xbatch TestOverlappingMismatchedAccesses
*/
import jdk.internal.misc.Unsafe;
public class TestOverlappingMismatchedAccesses {
static int N = 50;
static int gold[] = new int[N];
static Unsafe unsafe = Unsafe.getUnsafe();
public static void main(String[] strArr) {
init(gold);
test(gold);
for (int i = 0; i < 10_000; i++){
int[] data = new int[N];
init(data);
test(data);
verify(data, gold);
}
}
static void test(int[] data) {
for (int i = 2; i < N-2; i++) {
int v = data[i];
unsafe.putFloat(data, unsafe.ARRAY_BYTE_BASE_OFFSET + 4 * i + 8, v + 5);
}
}
static void init(int[] data) {
for (int j = 0; j < N; j++) {
data[j] = j;
}
}
static void verify(int[] data, int[] gold) {
for (int i = 0; i < N; i++) {
if (data[i] != gold[i]) {
throw new RuntimeException(" Invalid result: dataI[" + i + "]: " + data[i] + " != " + gold[i]);
}
}
}
}
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