Mercurial > hg > truffle
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/NullCheckNode.java @ 13277:ce017d1e4234
Merge.
author | Christian Humer <christian.humer@gmail.com> |
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date | Mon, 09 Dec 2013 17:31:12 +0100 |
parents | 24ff15442a09 |
children | 1cf373d2b415 |
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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.nodes.extended; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.nodes.type.*; public class NullCheckNode extends DeoptimizingFixedWithNextNode implements LIRLowerable, GuardingNode { @Input private ValueNode object; public NullCheckNode(ValueNode object) { super(StampFactory.dependency()); this.object = object; } public ValueNode getObject() { return object; } @Override public void generate(LIRGeneratorTool generator) { generator.emitNullCheck(object, this); } @Override public boolean canDeoptimize() { return true; } }