Mercurial > hg > truffle
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/BeginStateSplitNode.java @ 19526:8fc336a04d77
Create TYPE fields for LIRInstruction and CompositeValue. Renaming NodeClass#get to NodeClass#create.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Fri, 20 Feb 2015 22:22:55 +0100 |
parents | 880717e44675 |
children |
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/* * Copyright (c) 2012, 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.compiler.common.type.*; import com.oracle.graal.graph.*; import com.oracle.graal.nodeinfo.*; /** * Base class for {@link AbstractBeginNode}s that are associated with a frame state. * * TODO (dnsimon) this not needed until {@link AbstractBeginNode} no longer implements * {@link StateSplit} which is not possible until loop peeling works without requiring begin nodes * to have frames states. */ @NodeInfo public abstract class BeginStateSplitNode extends AbstractBeginNode implements StateSplit { public static final NodeClass<BeginStateSplitNode> TYPE = NodeClass.create(BeginStateSplitNode.class); @OptionalInput(InputType.State) protected FrameState stateAfter; protected BeginStateSplitNode(NodeClass<? extends BeginStateSplitNode> c) { super(c); } protected BeginStateSplitNode(NodeClass<? extends BeginStateSplitNode> c, Stamp stamp) { super(c, stamp); } public FrameState stateAfter() { return stateAfter; } public void setStateAfter(FrameState x) { assert x == null || x.isAlive() : "frame state must be in a graph"; updateUsages(stateAfter, x); stateAfter = x; } /** * A begin node has no side effect. */ @Override public boolean hasSideEffect() { return false; } }