Mercurial > hg > truffle
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/PiArrayNode.java @ 11787:4fc75b6ca3dd
Introduce NodeWithState for nodes that hold some VirtualState. Use this interface in the required special cases (Scheduling and PEA)
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Wed, 25 Sep 2013 12:08:04 +0200 |
parents | 7e7edb86fb43 |
children | a28f24553ffa |
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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.nodes.spi.*; import com.oracle.graal.nodes.type.*; /** * The {@code UnsafeCastNode} produces the same value as its input, but with a different type. */ public final class PiArrayNode extends PiNode implements ArrayLengthProvider { @Input private ValueNode length; public ValueNode length() { return length; } public PiArrayNode(ValueNode object, ValueNode length, Stamp stamp) { super(object, stamp); this.length = length; } @Override public ValueNode 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); }