Mercurial > hg > graal-compiler
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/InstanceOfDynamicNode.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 | f90dcdbbb75e |
children | 845e881ce054 |
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/* * Copyright (c) 2009, 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.java; import com.oracle.graal.api.meta.*; import com.oracle.graal.graph.spi.*; import com.oracle.graal.nodeinfo.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.nodes.type.*; /** * The {@code InstanceOfDynamicNode} represents a type check where the type being checked is not * known at compile time. This is used, for instance, to intrinsify {@link Class#isInstance(Object)} * . */ @NodeInfo public class InstanceOfDynamicNode extends LogicNode implements Canonicalizable.Binary<ValueNode>, Lowerable { @Input ValueNode object; @Input ValueNode mirror; /** * @param mirror the {@link Class} value representing the target target type of the test * @param object the object being tested */ public static InstanceOfDynamicNode create(ValueNode mirror, ValueNode object) { return USE_GENERATED_NODES ? new InstanceOfDynamicNodeGen(mirror, object) : new InstanceOfDynamicNode(mirror, object); } InstanceOfDynamicNode(ValueNode mirror, ValueNode object) { this.mirror = mirror; this.object = object; assert mirror.getKind() == Kind.Object : mirror.getKind(); assert StampTool.isExactType(mirror); assert StampTool.typeOrNull(mirror).getName().equals("Ljava/lang/Class;"); } @Override public void lower(LoweringTool tool) { tool.getLowerer().lower(this, tool); } public ValueNode canonical(CanonicalizerTool tool, ValueNode forObject, ValueNode forMirror) { if (forMirror.isConstant()) { ResolvedJavaType t = tool.getConstantReflection().asJavaType(forMirror.asConstant()); if (t != null) { if (t.isPrimitive()) { return LogicConstantNode.contradiction(); } else { return InstanceOfNode.create(t, forObject, null); } } } return this; } public ValueNode object() { return object; } public ValueNode mirror() { return mirror; } public ValueNode getX() { return object; } public ValueNode getY() { return mirror; } }