001/*
002 * Copyright (c) 2013, 2013, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023package com.oracle.graal.hotspot.test;
024
025import jdk.internal.jvmci.code.*;
026import jdk.internal.jvmci.hotspot.*;
027import jdk.internal.jvmci.meta.*;
028
029import org.junit.*;
030
031import com.oracle.graal.compiler.test.*;
032import com.oracle.graal.nodes.StructuredGraph.AllowAssumptions;
033
034public class HotSpotNmethodTest extends GraalCompilerTest {
035
036    private static final int ITERATION_COUNT = 100000;
037
038    @Test
039    public void testInstallCodeInvalidation() {
040        final ResolvedJavaMethod testJavaMethod = getResolvedJavaMethod("foo");
041        final HotSpotNmethod nmethod = (HotSpotNmethod) getCode(testJavaMethod, parseEager("otherFoo", AllowAssumptions.YES));
042        Assert.assertTrue(nmethod.isValid());
043        Object result;
044        try {
045            result = nmethod.executeVarargs(null, "b", "c");
046            assertDeepEquals(43, result);
047        } catch (InvalidInstalledCodeException e) {
048            Assert.fail("Code was invalidated");
049        }
050        Assert.assertTrue(nmethod.isValid());
051        nmethod.invalidate();
052        Assert.assertFalse(nmethod.isValid());
053        try {
054            result = nmethod.executeVarargs(null, null, null);
055            Assert.fail("Code was not invalidated");
056        } catch (InvalidInstalledCodeException e) {
057        }
058        Assert.assertFalse(nmethod.isValid());
059    }
060
061    @Test
062    public void testInstallCodeInvalidationWhileRunning() {
063        final ResolvedJavaMethod testJavaMethod = getResolvedJavaMethod("foo");
064        final HotSpotNmethod nmethod = (HotSpotNmethod) getCode(testJavaMethod, parseEager("otherFoo", AllowAssumptions.YES));
065        Object result;
066        try {
067            result = nmethod.executeVarargs(nmethod, null, null);
068            assertDeepEquals(43, result);
069        } catch (InvalidInstalledCodeException e) {
070            Assert.fail("Code was invalidated");
071        }
072        Assert.assertFalse(nmethod.isValid());
073    }
074
075    @Test
076    public void testInstalledCodeCalledFromCompiledCode() {
077        final ResolvedJavaMethod testJavaMethod = getResolvedJavaMethod("foo");
078        final HotSpotNmethod nmethod = (HotSpotNmethod) getCode(testJavaMethod, parseEager("otherFoo", AllowAssumptions.YES));
079        Assert.assertTrue(nmethod.isValid());
080        try {
081            for (int i = 0; i < ITERATION_COUNT; ++i) {
082                nmethod.executeVarargs(null, "b", "c");
083            }
084        } catch (InvalidInstalledCodeException e) {
085            Assert.fail("Code was invalidated");
086        }
087    }
088
089    @SuppressWarnings("unused")
090    public static Object foo(HotSpotNmethod method, Object a2, Object a3) {
091        return 42;
092    }
093
094    @SuppressWarnings("unused")
095    public static Object otherFoo(HotSpotNmethod method, Object a2, Object a3) {
096        if (method != null) {
097            method.invalidate();
098        }
099        return 43;
100    }
101}