| /* |
| * Copyright (c) 2009, 2011, 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.virtual; |
| |
| import static org.graalvm.compiler.nodeinfo.InputType.Extension; |
| import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_0; |
| import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_0; |
| |
| import org.graalvm.compiler.core.common.type.StampFactory; |
| import org.graalvm.compiler.core.common.type.TypeReference; |
| import org.graalvm.compiler.graph.NodeClass; |
| import org.graalvm.compiler.nodeinfo.NodeInfo; |
| import org.graalvm.compiler.nodes.ValueNode; |
| import org.graalvm.compiler.nodes.calc.FloatingNode; |
| import org.graalvm.compiler.nodes.spi.ArrayLengthProvider; |
| import org.graalvm.compiler.nodes.spi.Virtualizable; |
| import org.graalvm.compiler.nodes.spi.VirtualizerTool; |
| |
| /** |
| * Selects one object from a {@link CommitAllocationNode}. The object is identified by its |
| * {@link VirtualObjectNode}. |
| */ |
| @NodeInfo(cycles = CYCLES_0, size = SIZE_0) |
| public final class AllocatedObjectNode extends FloatingNode implements Virtualizable, ArrayLengthProvider { |
| |
| public static final NodeClass<AllocatedObjectNode> TYPE = NodeClass.create(AllocatedObjectNode.class); |
| @Input VirtualObjectNode virtualObject; |
| @Input(Extension) CommitAllocationNode commit; |
| |
| public AllocatedObjectNode(VirtualObjectNode virtualObject) { |
| super(TYPE, StampFactory.objectNonNull(TypeReference.createExactTrusted(virtualObject.type()))); |
| this.virtualObject = virtualObject; |
| } |
| |
| public VirtualObjectNode getVirtualObject() { |
| return virtualObject; |
| } |
| |
| public CommitAllocationNode getCommit() { |
| return commit; |
| } |
| |
| public void setCommit(CommitAllocationNode x) { |
| updateUsages(commit, x); |
| commit = x; |
| } |
| |
| @Override |
| public void virtualize(VirtualizerTool tool) { |
| tool.replaceWithVirtual(getVirtualObject()); |
| } |
| |
| @Override |
| public ValueNode length() { |
| if (virtualObject instanceof ArrayLengthProvider) { |
| return ((ArrayLengthProvider) virtualObject).length(); |
| } |
| return null; |
| } |
| } |