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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
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 * 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.
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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 jdk.vm.ci.meta.ConstantReflectionProvider;
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;
import org.graalvm.compiler.nodes.util.GraphUtil;

Selects one object from a CommitAllocationNode. The object is identified by its VirtualObjectNode.
/** * 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 findLength(FindLengthMode mode, ConstantReflectionProvider constantReflection) { return GraphUtil.arrayLength(virtualObject, mode, constantReflection); } }