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/*
* Copyright (c) 2020, Huawei Technologies Co., Ltd. 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 8235762
* @summary JVM crash in SWPointer during C2 compilation
*
* @run main/othervm -XX:-TieredCompilation -XX:-BackgroundCompilation -XX:-UseOnStackReplacement
* -XX:CompileCommand=compileonly,compiler.loopopts.superword.TestSearchAlignment::vMeth
* compiler.loopopts.superword.TestSearchAlignment
*/
package compiler.loopopts.superword;
public class TestSearchAlignment {
public static final int N = 400;
public static byte bArr[] = new byte[N];
public static int iArr[] = new int[N];
public static long lArr[] = new long[N];
public static void vMeth(byte bArg, int iArg, long lArg) {
int i = N - 1;
do {
iArr[i - 1] += iArg;
iArr[i] += iArg;
lArr[i - 1] = lArg;
bArr[i - 1] = bArg;
} while (--i > 0);
}
public void mainTest() {
byte b = 0;
int i = 0;
long l = 0;
for (int j = 0; j < N; ++j) {
vMeth(b, i, l);
}
}
public static void main(String[] args) {
TestSearchAlignment _instance = new TestSearchAlignment();
for (int i = 0; i < 10; i++) {
_instance.mainTest();
}
System.out.println("Test passed.");
}
}
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