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view graal/com.oracle.max.graal.nodes/src/com/oracle/graal/nodes/extended/UnboxNode.java @ 5059:ed559a528128
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author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Thu, 08 Mar 2012 17:57:30 +0100 |
parents | graal/com.oracle.max.graal.nodes/src/com/oracle/max/graal/nodes/extended/UnboxNode.java@854145ec9866 |
children | 4ed4295ce15f |
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/* * Copyright (c) 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.max.graal.nodes.extended; import com.oracle.max.cri.ci.*; import com.oracle.max.cri.ri.*; import com.oracle.max.graal.graph.*; import com.oracle.max.graal.nodes.*; import com.oracle.max.graal.nodes.java.*; import com.oracle.max.graal.nodes.spi.*; import com.oracle.max.graal.nodes.type.*; public final class UnboxNode extends FixedWithNextNode implements Node.IterableNodeType, Canonicalizable { @Input private ValueNode source; @Data private CiKind destinationKind; public UnboxNode(CiKind kind, ValueNode source) { super(StampFactory.forKind(kind)); this.source = source; this.destinationKind = kind; assert kind != CiKind.Object : "can only unbox to primitive"; assert source.kind() == CiKind.Object : "can only unbox objects"; } public ValueNode source() { return source; } public CiKind destinationKind() { return destinationKind; } public void expand(BoxingMethodPool pool) { RiResolvedField field = pool.getBoxField(kind()); LoadFieldNode loadField = graph().add(new LoadFieldNode(source, field)); loadField.setProbability(probability()); ((StructuredGraph) graph()).replaceFixedWithFixed(this, loadField); } @Override public ValueNode canonical(CanonicalizerTool tool) { if (source.isConstant()) { CiConstant constant = source.asConstant(); Object o = constant.asObject(); if (o != null) { switch (destinationKind) { case Boolean: return ConstantNode.forBoolean((Boolean) o, graph()); case Byte: return ConstantNode.forByte((Byte) o, graph()); case Char: return ConstantNode.forChar((Character) o, graph()); case Short: return ConstantNode.forShort((Short) o, graph()); case Int: return ConstantNode.forInt((Integer) o, graph()); case Long: return ConstantNode.forLong((Long) o, graph()); case Float: return ConstantNode.forFloat((Long) o, graph()); case Double: return ConstantNode.forDouble((Long) o, graph()); default: ValueUtil.shouldNotReachHere(); } } } return this; } }