jdk

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/*
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 * Copyright (c) 2022, 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 8279219
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 * @summary C2 crash when allocating array of size too large
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 * @requires vm.compiler2.enabled
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 * @library /test/lib /
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 * @build jdk.test.whitebox.WhiteBox
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 * @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
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 * @run main/othervm -ea -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:-BackgroundCompilation TestFailedAllocationBadGraph
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 */
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import jdk.test.whitebox.WhiteBox;
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import java.lang.reflect.Method;
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import compiler.whitebox.CompilerWhiteBoxTest;
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public class TestFailedAllocationBadGraph {
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    private static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox();
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    private static long[] array;
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    private static int field;
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    private static volatile int barrier;
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    public static void main(String[] args) throws Exception {
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        run("test1");
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        run("test2");
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    }
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    private static void run(String method) throws Exception {
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        Method m = TestFailedAllocationBadGraph.class.getDeclaredMethod(method);
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        WHITE_BOX.enqueueMethodForCompilation(m, CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION);
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        if (!WHITE_BOX.isMethodCompiled(m) || WHITE_BOX.getMethodCompilationLevel(m) != CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION) {
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            throw new RuntimeException("should still be compiled");
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        }
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    }
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    private static int test1() {
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        int length = Integer.MAX_VALUE;
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        try {
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            array = new long[length];
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        } catch (OutOfMemoryError outOfMemoryError) {
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            barrier = 0x42;
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            length = field;
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        }
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        return length;
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    }
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    private static int test2() {
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        int length = -1;
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        try {
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            array = new long[length];
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        } catch (OutOfMemoryError outOfMemoryError) {
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            barrier = 0x42;
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            length = field;
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        }
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        return length;
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    }
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}
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