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81 lines
2.9 KiB
Java
81 lines
2.9 KiB
Java
/*
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* Copyright (c) 2025, Red Hat, Inc. 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 8351889
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* @summary C2 crash: assertion failed: Base pointers must match (addp 344)
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* @run main/othervm -XX:-BackgroundCompilation -XX:CompileOnly=TestMismatchedAddPAfterMaxUnroll::test1
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* -XX:+UnlockDiagnosticVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:-UseLoopPredicate
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* -XX:+StressIGVN -XX:StressSeed=383593806 -XX:VerifyIterativeGVN=10000
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* TestMismatchedAddPAfterMaxUnroll
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* @run main/othervm -XX:-BackgroundCompilation -XX:CompileOnly=TestMismatchedAddPAfterMaxUnroll::test1
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* -XX:+UnlockDiagnosticVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:-UseLoopPredicate
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* -XX:+StressIGVN -XX:VerifyIterativeGVN=10000 TestMismatchedAddPAfterMaxUnroll
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* @run main/othervm TestMismatchedAddPAfterMaxUnroll
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*/
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public class TestMismatchedAddPAfterMaxUnroll {
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private static C[] arrayField = new C[4];
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public static void main(String[] args) {
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C c = new C();
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Object lock = new Object();
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for (int i = 0; i < 20_000; i++) {
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arrayField[3] = null;
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test1(3, c, arrayField, true, true, lock);
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arrayField[3] = null;
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test1(3, c, arrayField, true, false, lock);
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arrayField[3] = null;
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test1(3, c, arrayField, false, false, lock);
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arrayField[3] = c;
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test1(3, c, arrayField, false, false, lock);
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}
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}
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static class C {
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}
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private static void test1(int j, C c, C[] otherArray, boolean flag, boolean flag2, Object lock) {
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C[] array = arrayField;
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int i = 0;
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for (;;) {
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synchronized (lock) {}
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if (array[j] == null) {
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break;
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}
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otherArray[i] = c;
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i++;
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if (i >= 3) {
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return;
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}
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}
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if (flag) {
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if (flag2) {
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}
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}
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array[j] = c;
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}
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}
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