Mercurial > hg > truffle
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/SafepointNode.java @ 11760:ce0b00597980
made safepoint-on-return use specialized HotSpot runtime support for such safepoints (which have no debug info attached)
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 24 Sep 2013 08:51:02 +0200 |
parents | 775e139362d8 |
children | 24ff15442a09 |
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/* * Copyright (c) 2011, 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; import com.oracle.graal.api.meta.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.nodes.type.*; /** * Marks a position in the graph where a safepoint should be emitted. */ public class SafepointNode extends DeoptimizingFixedWithNextNode implements LIRLowerable { public SafepointNode() { super(StampFactory.forVoid()); } @Override public void generate(LIRGeneratorTool gen) { gen.visitSafepointNode(this); } @Override public DeoptimizationReason getDeoptimizationReason() { return null; } @Override public boolean canDeoptimize() { return true; } }