Mercurial > hg > truffle
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/virtual/BoxedVirtualObjectNode.java @ 7765:f20c2b1f5289
fix for Object.clone virtualization
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Mon, 11 Feb 2013 10:44:40 +0100 |
parents | 77c86cf33685 |
children |
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/* * Copyright (c) 2011, 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.virtual; import com.oracle.graal.api.meta.*; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.spi.*; public class BoxedVirtualObjectNode extends VirtualObjectNode implements LIRLowerable, Node.ValueNumberable { @Input ValueNode unboxedValue; private final ResolvedJavaType type; private final Kind kind; public BoxedVirtualObjectNode(ResolvedJavaType type, Kind kind, ValueNode unboxedValue) { this.type = type; this.kind = kind; this.unboxedValue = unboxedValue; } public ValueNode getUnboxedValue() { return unboxedValue; } @Override public ResolvedJavaType type() { return type; } @Override public int entryCount() { return 1; } @Override public String fieldName(int index) { assert index == 0; return "value"; } @Override public int entryIndexForOffset(long constantOffset) { // (lstadler) unsafe access to a newly created boxing object should only ever touch the // value field return 0; } @Override public Kind entryKind(int index) { return kind; } @Override public BoxedVirtualObjectNode duplicate() { return new BoxedVirtualObjectNode(type, kind, unboxedValue); } }