/*
* Copyright (c) 2013, 2016, 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.truffle.nodes.frame;
import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_0;
import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_0;
import org.graalvm.compiler.graph.IterableNodeType;
import org.graalvm.compiler.graph.NodeClass;
import org.graalvm.compiler.nodeinfo.NodeInfo;
import org.graalvm.compiler.nodes.FixedWithNextNode;
import org.graalvm.compiler.nodes.ValueNode;
import org.graalvm.compiler.nodes.spi.Virtualizable;
import org.graalvm.compiler.nodes.spi.VirtualizerTool;
import org.graalvm.compiler.nodes.virtual.VirtualObjectNode;
/**
* Intrinsic node for materializing a Truffle frame.
*/
@NodeInfo(nameTemplate = "AllowMaterialize{p#frame/s}", cycles = CYCLES_0, size = SIZE_0)
public final class AllowMaterializeNode extends FixedWithNextNode implements IterableNodeType, Virtualizable {
public static final NodeClass<AllowMaterializeNode> TYPE = NodeClass.create(AllowMaterializeNode.class);
@Input ValueNode frame;
public AllowMaterializeNode(ValueNode frame) {
super(TYPE, frame.stamp());
this.frame = frame;
}
public ValueNode getFrame() {
return frame;
}
@Override
public void virtualize(VirtualizerTool tool) {
ValueNode alias = tool.getAlias(frame);
if (alias instanceof VirtualObjectNode) {
VirtualObjectNode virtual = (VirtualObjectNode) alias;
tool.setEnsureVirtualized(virtual, false);
tool.replaceWithVirtual(virtual);
} else {
tool.replaceWithValue(alias);
}
}
}