Mercurial > hg > graal-compiler
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/StoreIndexedNode.java @ 6710:6db6881c1270
add Virtualizable and VirtualizerTool, refactor PEA to use it
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Mon, 12 Nov 2012 17:49:06 +0100 |
parents | feb579677b58 |
children | 94f032472c28 |
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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.nodes.java; import com.oracle.graal.api.meta.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.nodes.type.*; import com.oracle.graal.nodes.virtual.*; /** * The {@code StoreIndexedNode} represents a write to an array element. */ public final class StoreIndexedNode extends AccessIndexedNode implements StateSplit, Lowerable, Virtualizable { @Input private ValueNode value; @Input(notDataflow = true) private FrameState stateAfter; public FrameState stateAfter() { return stateAfter; } public void setStateAfter(FrameState x) { assert x == null || x.isAlive() : "frame state must be in a graph"; updateUsages(stateAfter, x); stateAfter = x; } public boolean hasSideEffect() { return true; } public ValueNode value() { return value; } /** * Creates a new StoreIndexedNode. * @param array the node producing the array * @param index the node producing the index * @param elementKind the element type * @param value the value to store into the array */ public StoreIndexedNode(ValueNode array, ValueNode index, Kind elementKind, ValueNode value, long leafGraphId) { super(StampFactory.forVoid(), array, index, elementKind, leafGraphId); this.value = value; } @Override public void virtualize(VirtualizerTool tool) { VirtualObjectNode virtualArray = tool.getVirtualState(array()); if (virtualArray != null) { ValueNode indexValue = tool.getReplacedValue(index()); int index = indexValue.isConstant() ? indexValue.asConstant().asInt() : -1; if (index >= 0 && index < virtualArray.entryCount()) { tool.setVirtualEntry(virtualArray, index, value()); tool.delete(); } } } }