Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/nodes/ClassGetModifiersNode.java @ 11202:4c0f7b396be6
added receiver null check in canonicalization of java.lang.Class macro nodes
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 05 Aug 2013 11:24:44 +0200 |
parents | c51dee07f0a4 |
children | 9a747d8e0d0f |
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/* * Copyright (c) 2013, 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.hotspot.replacements.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.replacements.nodes.*; /** * {@link MacroNode Macro node} for {@link Class#getModifiers()}. * * @see ClassSubstitutions#getModifiers(Class) */ public class ClassGetModifiersNode extends MacroNode implements Canonicalizable { public ClassGetModifiersNode(Invoke invoke) { super(invoke); } private ValueNode getJavaClass() { return arguments.get(0); } public ValueNode canonical(CanonicalizerTool tool) { ValueNode javaClass = getJavaClass(); if (javaClass.isConstant()) { Class c = (Class) javaClass.asConstant().asObject(); if (c != null) { return ConstantNode.forInt(c.getModifiers(), graph()); } } return this; } }