Mercurial > hg > truffle
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/PiArrayNode.java @ 16895:06c15e88d383
added factory method to all Node classes; replaced Node classes instantiation with calls to factory methods; replaced identity tests on Node classes with ' == <node class>.getGenClass()' idiom
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 18 Aug 2014 14:04:21 +0200 |
parents | cbd42807a31f |
children | f90dcdbbb75e |
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/* * Copyright (c) 2012, 2012, 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; 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.java.*; import com.oracle.graal.nodes.spi.*; /** * A {@link PiNode} that also provides an array length in addition to a more refined stamp. A usage * that reads the array length, such as an {@link ArrayLengthNode}, can be canonicalized based on * this information. */ @NodeInfo public class PiArrayNode extends PiNode implements ArrayLengthProvider { @Input private ValueNode length; public ValueNode length() { return length; } public static PiArrayNode create(ValueNode object, ValueNode length, Stamp stamp) { return new PiArrayNodeGen(object, length, stamp); } protected PiArrayNode(ValueNode object, ValueNode length, Stamp stamp) { super(object, stamp); this.length = length; } @Override public Node canonical(CanonicalizerTool tool) { if (!(object() instanceof ArrayLengthProvider) || length() != ((ArrayLengthProvider) object()).length()) { return this; } return super.canonical(tool); } @NodeIntrinsic public static native <T> T piArrayCast(Object object, int length, @ConstantNodeParameter Stamp stamp); }