Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/nodes/LoadIndexedFinalNode.java @ 17450:45b45f902bed
removed Node generation (GRAAL-857)
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Wed, 15 Oct 2014 15:35:33 +0200 |
parents | 7716c6993546 |
children | 9619ba4daf4c |
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/* * Copyright (c) 2013, 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.truffle.nodes; import com.oracle.graal.api.meta.*; import com.oracle.graal.compiler.common.type.*; import com.oracle.graal.graph.*; import com.oracle.graal.graph.spi.*; import com.oracle.graal.nodeinfo.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.java.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.nodes.type.*; /** * @see LoadIndexedNode */ @NodeInfo public class LoadIndexedFinalNode extends AccessIndexedNode implements Canonicalizable { /** * Creates a new {@link LoadIndexedFinalNode}. * * @param array the instruction producing the array * @param index the instruction producing the index * @param elementKind the element type */ public static LoadIndexedFinalNode create(ValueNode array, ValueNode index, Kind elementKind) { return new LoadIndexedFinalNode(array, index, elementKind); } protected LoadIndexedFinalNode(ValueNode array, ValueNode index, Kind elementKind) { super(createStamp(array, elementKind), array, index, elementKind); } @Override public Node canonical(CanonicalizerTool tool) { if (array().isConstant() && index().isConstant()) { Constant constant = tool.getConstantReflection().readArrayElement(array().asConstant(), index().asConstant().asInt()); if (constant != null) { return ConstantNode.forConstant(constant, tool.getMetaAccess()); } } return this; } private static Stamp createStamp(ValueNode array, Kind kind) { ResolvedJavaType type = StampTool.typeOrNull(array); if (kind == Kind.Object && type != null) { return StampFactory.declared(type.getComponentType(), false, true); } else { return StampFactory.forKind(kind); } } @Override public boolean inferStamp() { return updateStamp(createStamp(array(), elementKind())); } @Override public void lower(LoweringTool tool) { LoadIndexedNode loadIndexedNode = graph().add(LoadIndexedNode.create(array(), index(), elementKind())); graph().replaceFixedWithFixed(this, loadIndexedNode); loadIndexedNode.lower(tool); } }