--- /dev/null 2016-05-31 09:42:47.975716356 -0700 +++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/ControlSplitNode.java 2016-12-09 00:54:54.606651909 -0800 @@ -0,0 +1,51 @@ +/* + * Copyright (c) 2009, 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 org.graalvm.compiler.nodes; + +import org.graalvm.compiler.core.common.type.Stamp; +import org.graalvm.compiler.graph.IterableNodeType; +import org.graalvm.compiler.graph.NodeClass; +import org.graalvm.compiler.nodeinfo.NodeInfo; + +/** + * The {@code ControlSplitNode} is a base class for all instructions that split the control flow + * (ie. have more than one successor). + */ +@NodeInfo +public abstract class ControlSplitNode extends FixedNode implements IterableNodeType { + public static final NodeClass TYPE = NodeClass.create(ControlSplitNode.class); + + protected ControlSplitNode(NodeClass c, Stamp stamp) { + super(c, stamp); + } + + public abstract double probability(AbstractBeginNode successor); + + /** + * Primary successor of the control split. Data dependencies on the node have to be scheduled in + * the primary successor. + * + * @return the primary successor + */ + public abstract AbstractBeginNode getPrimarySuccessor(); +}