Mercurial > hg > truffle
view graal/com.oracle.graal.virtual/src/com/oracle/graal/virtual/nodes/MaterializeObjectNode.java @ 8914:7828409c364c
pull materialization logic into VirtualObjectNode classes
author | Lukas Stadler <lukas.stadler@jku.at> |
---|---|
date | Mon, 08 Apr 2013 17:31:50 +0200 |
parents | 3365d13f6be5 |
children | 289de078427d |
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/* * 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 com.oracle.graal.virtual.nodes; import com.oracle.graal.api.meta.*; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.nodes.type.*; import com.oracle.graal.nodes.virtual.*; @NodeInfo(nameTemplate = "Materialize {i#virtualObject}") public final class MaterializeObjectNode extends FixedWithNextNode implements VirtualizableAllocation, Lowerable, Node.IterableNodeType, Canonicalizable, ArrayLengthProvider { @Input private final NodeInputList<ValueNode> values; @Input private final VirtualObjectNode virtualObject; private final int lockCount; public MaterializeObjectNode(VirtualObjectNode virtualObject, int lockCount) { super(StampFactory.exactNonNull(virtualObject.type())); this.virtualObject = virtualObject; this.lockCount = lockCount; this.values = new NodeInputList<>(this, virtualObject.entryCount()); } public NodeInputList<ValueNode> values() { return values; } @Override public ValueNode length() { assert virtualObject.type().isArray(); return ConstantNode.forInt(values.size(), graph()); } /** * @return true if the object that will be created is without locks and has only entries that * are {@link Constant#defaultForKind(Kind)}, false otherwise. */ public boolean isDefault() { if (lockCount > 0) { return false; } else { for (ValueNode value : values) { if (!value.isConstant() || !value.asConstant().isDefaultForKind()) { return false; } } } return true; } @Override public void lower(LoweringTool tool) { virtualObject.materializeAt(this, values, isDefault(), lockCount); } @Override public ValueNode canonical(CanonicalizerTool tool) { if (usages().isEmpty()) { return null; } else { return this; } } @Override public void virtualize(VirtualizerTool tool) { tool.createVirtualObject(virtualObject, values.toArray(new ValueNode[values.size()]), lockCount); tool.replaceWithVirtual(virtualObject); } }