Mercurial > hg > graal-compiler
view graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/nodes/ClassCastNode.java @ 16919:0fe4732e5181
made use of generated Node classes predicated on value of graal.useGeneratedNodes system property (default is false)
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 25 Aug 2014 13:45:12 +0200 |
parents | 06c15e88d383 |
children | 45b45f902bed |
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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.hotspot.nodes; import com.oracle.graal.graph.spi.*; import com.oracle.graal.hotspot.meta.*; import com.oracle.graal.hotspot.replacements.*; import com.oracle.graal.nodeinfo.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.java.*; import com.oracle.graal.replacements.nodes.*; /** * {@link MacroNode Macro node} for {@link Class#cast(Object)}. * * @see ClassSubstitutions#cast(Class, Object) */ @NodeInfo public class ClassCastNode extends MacroStateSplitNode implements Canonicalizable.Binary<ValueNode> { public static ClassCastNode create(Invoke invoke) { return USE_GENERATED_NODES ? new ClassCastNodeGen(invoke) : new ClassCastNode(invoke); } protected ClassCastNode(Invoke invoke) { super(invoke); } private ValueNode getJavaClass() { return arguments.get(0); } private ValueNode getObject() { return arguments.get(1); } public ValueNode getX() { return getJavaClass(); } public ValueNode getY() { return getObject(); } @Override public ValueNode canonical(CanonicalizerTool tool, ValueNode forJavaClass, ValueNode forObject) { if (forJavaClass.isConstant()) { Class<?> c = (Class<?>) HotSpotObjectConstant.asObject(forJavaClass.asConstant()); if (c != null && !c.isPrimitive()) { HotSpotResolvedObjectType type = (HotSpotResolvedObjectType) HotSpotResolvedObjectType.fromClass(c); return CheckCastNode.create(type, forObject, null, false); } } return this; } }