Mercurial > hg > graal-compiler
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/UnboxNode.java @ 17327:655f3e6b467b
made all Node data (i.e. non-edge) fields non-final and protected to support generating a copy "constructor" using Unsafe.allocateInstance
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 03 Oct 2014 14:19:31 +0200 |
parents | 845e881ce054 |
children | c9bb0da795d4 |
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/* * Copyright (c) 2013, 2014, 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.extended; import com.oracle.graal.api.meta.*; import com.oracle.graal.compiler.common.type.*; import com.oracle.graal.graph.spi.*; import com.oracle.graal.nodeinfo.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.calc.*; import com.oracle.graal.nodes.spi.*; @NodeInfo public class UnboxNode extends UnaryNode implements Virtualizable, Lowerable { protected Kind boxingKind; public static UnboxNode create(ValueNode value, Kind boxingKind) { return USE_GENERATED_NODES ? new UnboxNodeGen(value, boxingKind) : new UnboxNode(value, boxingKind); } protected UnboxNode(ValueNode value, Kind boxingKind) { super(StampFactory.forKind(boxingKind.getStackKind()), value); this.boxingKind = boxingKind; } public Kind getBoxingKind() { return boxingKind; } @Override public void lower(LoweringTool tool) { tool.getLowerer().lower(this, tool); } @Override public void virtualize(VirtualizerTool tool) { State state = tool.getObjectState(getValue()); if (state != null && state.getState() == EscapeState.Virtual) { ResolvedJavaType objectType = state.getVirtualObject().type(); ResolvedJavaType expectedType = tool.getMetaAccessProvider().lookupJavaType(boxingKind.toBoxedJavaClass()); if (objectType.equals(expectedType)) { tool.replaceWithValue(state.getEntry(0)); } } } @Override public ValueNode canonical(CanonicalizerTool tool, ValueNode forValue) { if (forValue.isConstant()) { Constant constant = forValue.asConstant(); Constant unboxed = tool.getConstantReflection().unboxPrimitive(constant); if (unboxed != null && unboxed.getKind() == boxingKind) { return ConstantNode.forConstant(unboxed, tool.getMetaAccess()); } } else if (forValue instanceof BoxNode) { BoxNode box = (BoxNode) forValue; if (boxingKind == box.getBoxingKind()) { return box.getValue(); } } return this; } @NodeIntrinsic public static native boolean unbox(Boolean value, @ConstantNodeParameter Kind kind); @NodeIntrinsic public static native byte unbox(Byte value, @ConstantNodeParameter Kind kind); @NodeIntrinsic public static native char unbox(Character value, @ConstantNodeParameter Kind kind); @NodeIntrinsic public static native double unbox(Double value, @ConstantNodeParameter Kind kind); @NodeIntrinsic public static native float unbox(Float value, @ConstantNodeParameter Kind kind); @NodeIntrinsic public static native int unbox(Integer value, @ConstantNodeParameter Kind kind); @NodeIntrinsic public static native long unbox(Long value, @ConstantNodeParameter Kind kind); @NodeIntrinsic public static native short unbox(Short value, @ConstantNodeParameter Kind kind); }