# HG changeset patch
# User Doug Simon <doug.simon@oracle.com>
# Date 1336602838 -7200
# Node ID 3fd6b0ab1146eaa2d9f064c93a0926c4e9b5dc21
# Parent  5229911d3970da598113243b73d51399645a4994
created StartNode and DispatchBeginNode for clearer visualization of these special nodes in the visualizer

diff -r 5229911d3970 -r 3fd6b0ab1146 graal/com.oracle.graal.java/src/com/oracle/graal/java/GraphBuilderPhase.java
--- a/graal/com.oracle.graal.java/src/com/oracle/graal/java/GraphBuilderPhase.java	Wed May 09 22:35:44 2012 +0200
+++ b/graal/com.oracle.graal.java/src/com/oracle/graal/java/GraphBuilderPhase.java	Thu May 10 00:33:58 2012 +0200
@@ -255,7 +255,7 @@
         FrameStateBuilder dispatchState = frameState.copy();
         dispatchState.clearStack();
 
-        BeginNode dispatchBegin = currentGraph.add(new BeginStateSplitNode());
+        BeginNode dispatchBegin = currentGraph.add(new DispatchBeginNode());
         dispatchBegin.setStateAfter(dispatchState.create(bci));
 
         if (exceptionObject == null) {
diff -r 5229911d3970 -r 3fd6b0ab1146 graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/BeginStateSplitNode.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/BeginStateSplitNode.java	Wed May 09 22:35:44 2012 +0200
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/BeginStateSplitNode.java	Thu May 10 00:33:58 2012 +0200
@@ -25,7 +25,7 @@
 /**
  * Base class for {@link BeginNode}s that are associated with a frame state.
  */
-public class BeginStateSplitNode extends BeginNode implements StateSplit {
+public abstract class BeginStateSplitNode extends BeginNode implements StateSplit {
 
     /**
      * A begin node has no side effect.
diff -r 5229911d3970 -r 3fd6b0ab1146 graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/DispatchBeginNode.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/DispatchBeginNode.java	Thu May 10 00:33:58 2012 +0200
@@ -0,0 +1,30 @@
+/*
+ * 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;
+
+/**
+ * The entry node of an exception dispatcher block.
+ */
+public class DispatchBeginNode extends BeginStateSplitNode {
+
+}
diff -r 5229911d3970 -r 3fd6b0ab1146 graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/StartNode.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/StartNode.java	Thu May 10 00:33:58 2012 +0200
@@ -0,0 +1,30 @@
+/*
+ * 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;
+
+/**
+ * The start node of a graph.
+ */
+public class StartNode extends BeginStateSplitNode {
+
+}
diff -r 5229911d3970 -r 3fd6b0ab1146 graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/StructuredGraph.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/StructuredGraph.java	Wed May 09 22:35:44 2012 +0200
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/StructuredGraph.java	Thu May 10 00:33:58 2012 +0200
@@ -64,7 +64,7 @@
 
     private StructuredGraph(String name, RiResolvedMethod method, long graphId) {
         super(name);
-        this.start = add(new BeginStateSplitNode());
+        this.start = add(new StartNode());
         this.method = method;
         this.graphId = graphId;
     }