Mercurial > hg > graal-compiler
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/AbstractDeoptimizeNode.java @ 15507:5fcbf87a58b7
fix block probabilities
author | Lukas Stadler <lukas.stadler@oracle.com> |
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date | Mon, 05 May 2014 18:36:01 +0200 |
parents | 882f4cb7cfcf |
children | aeaad00ddce0 |
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/* * Copyright (c) 2013, 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; import com.oracle.graal.api.meta.*; import com.oracle.graal.compiler.common.type.*; import com.oracle.graal.graph.*; /** * This node represents an unconditional explicit request for immediate deoptimization. * * After this node, execution will continue using a fallback execution engine (such as an * interpreter) at the position described by the {@link #stateBefore() deoptimization state}. */ public abstract class AbstractDeoptimizeNode extends ControlSinkNode implements IterableNodeType, DeoptimizingNode.DeoptBefore { @Input(InputType.State) private FrameState stateBefore; public AbstractDeoptimizeNode() { super(StampFactory.forVoid()); } @Override public boolean canDeoptimize() { return true; } @Override public FrameState stateBefore() { return stateBefore; } @Override public void setStateBefore(FrameState f) { updateUsages(stateBefore, f); stateBefore = f; } public abstract ValueNode getActionAndReason(MetaAccessProvider metaAccess); public abstract ValueNode getSpeculation(MetaAccessProvider metaAccess); }