Mercurial > hg > graal-compiler
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/UnboxNode.java @ 15261:882f4cb7cfcf
Move Stamps to graal.compiler.common.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Tue, 22 Apr 2014 11:51:34 +0200 |
parents | db4254246f9a |
children | 0993768dfc8e |
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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.*; import com.oracle.graal.graph.spi.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.calc.*; import com.oracle.graal.nodes.spi.*; public class UnboxNode extends FloatingNode implements Virtualizable, Lowerable, Canonicalizable { @Input private ValueNode value; private final Kind boxingKind; public UnboxNode(ValueNode value, Kind boxingKind) { super(StampFactory.forKind(boxingKind.getStackKind())); this.value = value; this.boxingKind = boxingKind; } public Kind getBoxingKind() { return boxingKind; } public ValueNode getValue() { return value; } @Override public void lower(LoweringTool tool) { tool.getLowerer().lower(this, tool); } @Override public void virtualize(VirtualizerTool tool) { State state = tool.getObjectState(value); 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 Node canonical(CanonicalizerTool tool) { if (value.isConstant()) { Constant constant = value.asConstant(); Constant unboxed = tool.getConstantReflection().unboxPrimitive(constant); if (unboxed != null && unboxed.getKind() == boxingKind) { return ConstantNode.forConstant(unboxed, tool.getMetaAccess(), graph()); } } else if (value instanceof BoxNode) { BoxNode box = (BoxNode) value; if (boxingKind == box.getBoxingKind()) { return box.getValue(); } } if (usages().isEmpty()) { return null; } 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); }