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/*
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* Copyright (c) 2011, 2014, Oracle and/or its affiliates. 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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package org.graalvm.compiler.core.test.ea;
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47798
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import java.nio.ByteBuffer;
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43972
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47798
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import org.graalvm.compiler.api.directives.GraalDirectives;
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import org.graalvm.compiler.graph.Graph;
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import org.graalvm.compiler.graph.Node;
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import org.graalvm.compiler.nodes.NamedLocationIdentity;
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import org.graalvm.compiler.nodes.PhiNode;
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import org.graalvm.compiler.nodes.ValuePhiNode;
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import org.graalvm.compiler.nodes.calc.UnpackEndianHalfNode;
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import org.graalvm.compiler.nodes.extended.RawLoadNode;
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import org.graalvm.compiler.nodes.extended.RawStoreNode;
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import org.graalvm.compiler.nodes.extended.UnsafeAccessNode;
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import org.graalvm.compiler.nodes.java.LoadFieldNode;
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import org.graalvm.compiler.phases.common.CanonicalizerPhase;
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43972
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import org.junit.Assert;
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import org.junit.Test;
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47798
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import jdk.vm.ci.meta.JavaConstant;
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import jdk.vm.ci.meta.JavaKind;
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import jdk.vm.ci.meta.ResolvedJavaMethod;
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43972
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public class UnsafeEATest extends EATestBase {
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public static int zero = 0;
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private static final long fieldOffset1;
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private static final long fieldOffset2;
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static {
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try {
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long localFieldOffset1 = UNSAFE.objectFieldOffset(TestClassInt.class.getField("x"));
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// Make the fields 8 byte aligned (Required for testing setLong on Architectures which
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// does not support unaligned memory access
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if (localFieldOffset1 % 8 == 0) {
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fieldOffset1 = localFieldOffset1;
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fieldOffset2 = UNSAFE.objectFieldOffset(TestClassInt.class.getField("y"));
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} else {
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fieldOffset1 = UNSAFE.objectFieldOffset(TestClassInt.class.getField("y"));
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fieldOffset2 = UNSAFE.objectFieldOffset(TestClassInt.class.getField("z"));
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}
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assert fieldOffset2 == fieldOffset1 + 4;
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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@Override
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protected void testEscapeAnalysis(String snippet, JavaConstant expectedConstantResult, boolean iterativeEscapeAnalysis) {
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// Exercise both a graph containing UnsafeAccessNodes and one which has been possibly been
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// canonicalized into AccessFieldNodes.
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testingUnsafe = true;
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super.testEscapeAnalysis(snippet, expectedConstantResult, iterativeEscapeAnalysis);
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testingUnsafe = false;
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super.testEscapeAnalysis(snippet, expectedConstantResult, iterativeEscapeAnalysis);
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if (expectedConstantResult != null) {
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// Check that a compiled version of this method returns the same value if we expect a
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// constant result.
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ResolvedJavaMethod method = getResolvedJavaMethod(snippet);
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JavaKind[] javaKinds = method.getSignature().toParameterKinds(false);
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Object[] args = new Object[javaKinds.length];
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int i = 0;
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for (JavaKind k : javaKinds) {
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args[i++] = JavaConstant.defaultForKind(k).asBoxedPrimitive();
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}
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Result result = executeExpected(method, null, args);
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assertTrue(result.returnValue.equals(expectedConstantResult.asBoxedPrimitive()));
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}
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}
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@Override
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protected void canonicalizeGraph() {
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if (testingUnsafe) {
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// For testing purposes we'd like to ensure that our raw unsafe operations stay as
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// unsafe nodes, so force them to appear to have LocationIdentity.any to disable
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// transformation into field access nodes.
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for (Node node : graph.getNodes().filter(x -> x instanceof UnsafeAccessNode).snapshot()) {
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if (node instanceof RawStoreNode) {
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RawStoreNode store = (RawStoreNode) node;
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RawStoreNode newStore = graph.add(new RawStoreNode(store.object(), store.offset(), store.value(), store.accessKind(), NamedLocationIdentity.any(),
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store.needsBarrier(), store.stateAfter(), true));
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graph.replaceFixedWithFixed(store, newStore);
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} else if (node instanceof RawLoadNode) {
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RawLoadNode load = (RawLoadNode) node;
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RawLoadNode newLoad = graph.add(new RawLoadNode(load.object(), load.offset(), load.accessKind(), NamedLocationIdentity.any(),
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true));
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graph.replaceFixedWithFixed(load, newLoad);
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}
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}
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}
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super.canonicalizeGraph();
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}
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@Override
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protected void postEACanonicalizeGraph() {
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// Simplify any UnpackEndianHalfNode so we end up with constants.
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Graph.Mark mark = graph.getMark();
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for (UnpackEndianHalfNode node : graph.getNodes().filter(UnpackEndianHalfNode.class)) {
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node.lower(getTarget().arch.getByteOrder());
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}
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new CanonicalizerPhase().applyIncremental(graph, context, mark);
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}
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private boolean testingUnsafe;
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@Test
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public void testSimpleInt() {
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testEscapeAnalysis("testSimpleIntSnippet", JavaConstant.forInt(101), false);
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}
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public static int testSimpleIntSnippet() {
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TestClassInt x = new TestClassInt();
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UNSAFE.putInt(x, fieldOffset1, 101);
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return UNSAFE.getInt(x, fieldOffset1);
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}
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@Test
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public void testMaterializedInt() {
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test("testMaterializedIntSnippet");
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}
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public static TestClassInt testMaterializedIntSnippet() {
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TestClassInt x = new TestClassInt();
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UNSAFE.putInt(x, fieldOffset1, 101);
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return x;
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}
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@Test
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public void testSimpleDouble() {
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testEscapeAnalysis("testSimpleDoubleSnippet", JavaConstant.forDouble(10.1), false);
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}
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public static double testSimpleDoubleSnippet() {
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TestClassInt x = new TestClassInt();
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UNSAFE.putDouble(x, fieldOffset1, 10.1);
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return UNSAFE.getDouble(x, fieldOffset1);
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}
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@Test
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public void testSimpleDoubleOverwriteWithInt() {
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testEscapeAnalysis("testSimpleDoubleOverwriteWithIntSnippet", JavaConstant.forInt(10), false);
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}
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public static int testSimpleDoubleOverwriteWithIntSnippet() {
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TestClassInt x = new TestClassInt();
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UNSAFE.putDouble(x, fieldOffset1, 10.1);
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UNSAFE.putInt(x, fieldOffset1, 10);
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return UNSAFE.getInt(x, fieldOffset1);
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}
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@Test
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public void testSimpleDoubleOverwriteWithSecondInt() {
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ByteBuffer bb = ByteBuffer.allocate(8).order(getTarget().arch.getByteOrder());
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bb.putDouble(10.1);
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int value = bb.getInt(4);
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testEscapeAnalysis("testSimpleDoubleOverwriteWithSecondIntSnippet", JavaConstant.forInt(value), false);
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}
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public static int testSimpleDoubleOverwriteWithSecondIntSnippet() {
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TestClassInt x = new TestClassInt();
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UNSAFE.putDouble(x, fieldOffset1, 10.1);
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UNSAFE.putInt(x, fieldOffset1, 10);
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return UNSAFE.getInt(x, fieldOffset2);
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}
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@Test
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public void testSimpleDoubleOverwriteWithFirstInt() {
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ByteBuffer bb = ByteBuffer.allocate(8).order(getTarget().arch.getByteOrder());
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bb.putDouble(10.1);
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int value = bb.getInt(0);
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testEscapeAnalysis("testSimpleDoubleOverwriteWithFirstIntSnippet", JavaConstant.forInt(value), false);
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}
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public static int testSimpleDoubleOverwriteWithFirstIntSnippet() {
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TestClassInt x = new TestClassInt();
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UNSAFE.putDouble(x, fieldOffset1, 10.1);
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UNSAFE.putInt(x, fieldOffset2, 10);
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return UNSAFE.getInt(x, fieldOffset1);
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}
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@Test
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public void testSimpleLongOverwriteWithSecondInt() {
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ByteBuffer bb = ByteBuffer.allocate(8).order(getTarget().arch.getByteOrder());
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bb.putLong(0, 0x1122334455667788L);
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int value = bb.getInt(4);
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testEscapeAnalysis("testSimpleLongOverwriteWithSecondIntSnippet", JavaConstant.forInt(value), false);
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}
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public static int testSimpleLongOverwriteWithSecondIntSnippet() {
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TestClassInt x = new TestClassInt();
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UNSAFE.putLong(x, fieldOffset1, 0x1122334455667788L);
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UNSAFE.putInt(x, fieldOffset1, 10);
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return UNSAFE.getInt(x, fieldOffset2);
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}
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@Test
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public void testSimpleLongOverwriteWithFirstInt() {
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ByteBuffer bb = ByteBuffer.allocate(8).order(getTarget().arch.getByteOrder());
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bb.putLong(0, 0x1122334455667788L);
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int value = bb.getInt(0);
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testEscapeAnalysis("testSimpleLongOverwriteWithFirstIntSnippet", JavaConstant.forInt(value), false);
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}
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public static int testSimpleLongOverwriteWithFirstIntSnippet() {
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TestClassInt x = new TestClassInt();
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UNSAFE.putLong(x, fieldOffset1, 0x1122334455667788L);
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UNSAFE.putInt(x, fieldOffset2, 10);
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return UNSAFE.getInt(x, fieldOffset1);
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}
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@Test
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public void testMergedDouble() {
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testEscapeAnalysis("testMergedDoubleSnippet", null, false);
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Assert.assertEquals(1, returnNodes.size());
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Assert.assertTrue(returnNodes.get(0).result() instanceof ValuePhiNode);
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PhiNode phi = (PhiNode) returnNodes.get(0).result();
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Assert.assertTrue(phi.valueAt(0) instanceof LoadFieldNode);
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Assert.assertTrue(phi.valueAt(1) instanceof LoadFieldNode);
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}
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public static double testMergedDoubleSnippet(boolean a) {
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TestClassInt x;
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if (a) {
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x = new TestClassInt(0, 0);
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UNSAFE.putDouble(x, fieldOffset1, doubleField);
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} else {
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x = new TestClassInt();
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UNSAFE.putDouble(x, fieldOffset1, doubleField2);
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}
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return UNSAFE.getDouble(x, fieldOffset1);
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}
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47798
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static class ExtendedTestClassInt extends TestClassInt {
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public long l;
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}
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@Test
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public void testMergedVirtualObjects() {
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testEscapeAnalysis("testMergedVirtualObjectsSnippet", null, false);
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}
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public static TestClassInt testMergedVirtualObjectsSnippet(int value) {
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TestClassInt x;
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if (value == 1) {
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x = new TestClassInt();
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UNSAFE.putDouble(x, fieldOffset1, 10);
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} else {
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x = new TestClassInt();
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UNSAFE.putInt(x, fieldOffset1, 0);
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}
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UNSAFE.putInt(x, fieldOffset1, 0);
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if (value == 2) {
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UNSAFE.putInt(x, fieldOffset2, 0);
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}
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GraalDirectives.deoptimizeAndInvalidate();
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return x;
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}
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43972
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@Test
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public void testMaterializedDouble() {
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test("testMaterializedDoubleSnippet");
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}
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public static TestClassInt testMaterializedDoubleSnippet() {
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TestClassInt x = new TestClassInt();
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UNSAFE.putDouble(x, fieldOffset1, 10.1);
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return x;
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}
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@Test
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public void testDeoptDoubleVar() {
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test("testDeoptDoubleVarSnippet");
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}
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public static double doubleField = 10.1e99;
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public static double doubleField2;
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public static TestClassInt testDeoptDoubleVarSnippet() {
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TestClassInt x = new TestClassInt();
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UNSAFE.putDouble(x, fieldOffset1, doubleField);
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doubleField2 = 123;
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try {
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doubleField = ((int) UNSAFE.getDouble(x, fieldOffset1)) / zero;
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311 |
} catch (RuntimeException e) {
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return x;
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}
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return x;
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}
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@Test
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318 |
public void testDeoptDoubleConstant() {
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319 |
test("testDeoptDoubleConstantSnippet");
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}
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321 |
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322 |
public static TestClassInt testDeoptDoubleConstantSnippet() {
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323 |
TestClassInt x = new TestClassInt();
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|
324 |
UNSAFE.putDouble(x, fieldOffset1, 10.123);
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|
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doubleField2 = 123;
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|
326 |
try {
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|
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doubleField = ((int) UNSAFE.getDouble(x, fieldOffset1)) / zero;
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|
328 |
} catch (RuntimeException e) {
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|
329 |
return x;
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|
330 |
}
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|
331 |
return x;
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|
332 |
}
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|
333 |
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334 |
@Test
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|
335 |
public void testDeoptLongVar() {
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|
336 |
test("testDeoptLongVarSnippet");
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|
337 |
}
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338 |
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339 |
public static long longField = 0x133443218aaaffffL;
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340 |
public static long longField2;
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341 |
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342 |
public static TestClassInt testDeoptLongVarSnippet() {
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343 |
TestClassInt x = new TestClassInt();
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|
344 |
UNSAFE.putLong(x, fieldOffset1, longField);
|
|
|
345 |
longField2 = 123;
|
|
|
346 |
try {
|
|
|
347 |
longField = UNSAFE.getLong(x, fieldOffset1) / zero;
|
|
|
348 |
} catch (RuntimeException e) {
|
|
|
349 |
return x;
|
|
|
350 |
}
|
|
|
351 |
return x;
|
|
|
352 |
}
|
|
|
353 |
|
|
|
354 |
@Test
|
|
|
355 |
public void testDeoptLongConstant() {
|
|
|
356 |
test("testDeoptLongConstantSnippet");
|
|
|
357 |
}
|
|
|
358 |
|
|
|
359 |
public static TestClassInt testDeoptLongConstantSnippet() {
|
|
|
360 |
TestClassInt x = new TestClassInt();
|
|
|
361 |
UNSAFE.putLong(x, fieldOffset1, 0x2222222210123L);
|
|
|
362 |
longField2 = 123;
|
|
|
363 |
try {
|
|
|
364 |
longField = UNSAFE.getLong(x, fieldOffset1) / zero;
|
|
|
365 |
} catch (RuntimeException e) {
|
|
|
366 |
return x;
|
|
|
367 |
}
|
|
|
368 |
return x;
|
|
|
369 |
}
|
|
46762
|
370 |
|
|
43972
|
371 |
}
|