--- /dev/null 2017-01-22 10:16:57.869617664 -0800 +++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/java/DynamicNewInstanceNode.java 2017-02-15 17:07:37.144193691 -0800 @@ -0,0 +1,97 @@ +/* + * Copyright (c) 2013, 2014, Oracle and/or its affiliates. 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. + */ +package org.graalvm.compiler.nodes.java; + +import java.lang.reflect.Modifier; + +import org.graalvm.compiler.core.common.type.StampFactory; +import org.graalvm.compiler.graph.Node; +import org.graalvm.compiler.graph.NodeClass; +import org.graalvm.compiler.graph.spi.Canonicalizable; +import org.graalvm.compiler.graph.spi.CanonicalizerTool; +import org.graalvm.compiler.nodeinfo.NodeInfo; +import org.graalvm.compiler.nodes.FrameState; +import org.graalvm.compiler.nodes.ValueNode; + +import jdk.vm.ci.meta.MetaAccessProvider; +import jdk.vm.ci.meta.ResolvedJavaType; + +@NodeInfo +public class DynamicNewInstanceNode extends AbstractNewObjectNode implements Canonicalizable { + public static final NodeClass TYPE = NodeClass.create(DynamicNewInstanceNode.class); + + @Input ValueNode clazz; + + /** + * Class pointer to class.class needs to be exposed earlier than this node is lowered so that it + * can be replaced by the AOT machinery. If it's not needed for lowering this input can be + * ignored. + */ + @OptionalInput ValueNode classClass; + + public DynamicNewInstanceNode(ValueNode clazz, boolean fillContents) { + this(TYPE, clazz, fillContents, null); + } + + protected DynamicNewInstanceNode(NodeClass c, ValueNode clazz, boolean fillContents, FrameState stateBefore) { + super(c, StampFactory.objectNonNull(), fillContents, stateBefore); + this.clazz = clazz; + } + + public ValueNode getInstanceType() { + return clazz; + } + + @Override + public Node canonical(CanonicalizerTool tool) { + if (clazz.isConstant()) { + ResolvedJavaType type = tool.getConstantReflection().asJavaType(clazz.asConstant()); + if (type != null && type.isInitialized() && !throwsInstantiationException(type, tool.getMetaAccess())) { + return createNewInstanceNode(type); + } + } + return this; + } + + /** Hook for subclasses to instantiate a subclass of {@link NewInstanceNode}. */ + protected NewInstanceNode createNewInstanceNode(ResolvedJavaType type) { + return new NewInstanceNode(type, fillContents(), stateBefore()); + } + + public static boolean throwsInstantiationException(Class type, Class classClass) { + return type.isPrimitive() || type.isArray() || type.isInterface() || Modifier.isAbstract(type.getModifiers()) || type == classClass; + } + + public static boolean throwsInstantiationException(ResolvedJavaType type, MetaAccessProvider metaAccess) { + return type.isPrimitive() || type.isArray() || type.isInterface() || Modifier.isAbstract(type.getModifiers()) || type.equals(metaAccess.lookupJavaType(Class.class)); + } + + public ValueNode getClassClass() { + return classClass; + } + + public void setClassClass(ValueNode newClassClass) { + updateUsages(classClass, newClassClass); + classClass = newClassClass; + } +}