# HG changeset patch
# User Doug Simon <doug.simon@oracle.com>
# Date 1336724035 -7200
# Node ID 53cc37c27b04fefad0648acee0c505745bc22c8c
# Parent  4485e0edd1af42f5d1a610ce34f514f26237f1b8
used more specific BeginNode subclass where appropriate

diff -r 4485e0edd1af -r 53cc37c27b04 graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/util/InliningUtil.java
--- a/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/util/InliningUtil.java	Thu May 10 00:36:12 2012 +0200
+++ b/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/util/InliningUtil.java	Fri May 11 10:13:55 2012 +0200
@@ -287,7 +287,7 @@
             PhiNode exceptionObjectPhi = null;
             if (invoke instanceof InvokeWithExceptionNode) {
                 InvokeWithExceptionNode invokeWithException = (InvokeWithExceptionNode) invoke;
-                BeginNode exceptionEdge = invokeWithException.exceptionEdge();
+                DispatchBeginNode exceptionEdge = invokeWithException.exceptionEdge();
                 ExceptionObjectNode exceptionObject = (ExceptionObjectNode) exceptionEdge.next();
 
                 exceptionMerge = graph.add(new MergeNode());
@@ -785,7 +785,7 @@
         ArrayList<Node> nodes = new ArrayList<>();
         ReturnNode returnNode = null;
         UnwindNode unwindNode = null;
-        BeginNode entryPointNode = inlineGraph.start();
+        StartNode entryPointNode = inlineGraph.start();
         FixedNode firstCFGNode = entryPointNode.next();
         for (Node node : inlineGraph.getNodes()) {
             if (node == entryPointNode || node == entryPointNode.stateAfter()) {
@@ -979,7 +979,7 @@
         // Gather the nodes in the snippets that are to be inlined
         ArrayList<Node> nodes = new ArrayList<>();
         ReturnNode returnNode = null;
-        BeginNode entryPointNode = snippetCopy.start();
+        StartNode entryPointNode = snippetCopy.start();
         FixedNode firstCFGNode = entryPointNode.next();
         replacements.clear();
         for (Node node : snippetCopy.getNodes()) {
diff -r 4485e0edd1af -r 53cc37c27b04 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	Thu May 10 00:36:12 2012 +0200
+++ b/graal/com.oracle.graal.java/src/com/oracle/graal/java/GraphBuilderPhase.java	Fri May 11 10:13:55 2012 +0200
@@ -165,7 +165,7 @@
         frameState.clearNonLiveLocals(blockMap.startBlock.localsLiveIn);
 
         // finish the start block
-        lastInstr.setStateAfter(frameState.create(0));
+        ((StateSplit) lastInstr).setStateAfter(frameState.create(0));
         if (blockMap.startBlock.isLoopHeader) {
             appendGoto(createTarget(blockMap.startBlock, frameState));
         } else {
@@ -241,7 +241,7 @@
         return handler.catchTypeCPI() == 0;
     }
 
-    private BeginNode handleException(ValueNode exceptionObject, int bci) {
+    private DispatchBeginNode handleException(ValueNode exceptionObject, int bci) {
         assert bci == FrameState.BEFORE_BCI || bci == bci() : "invalid bci";
         Debug.log("Creating exception dispatch edges at %d, exception object=%s, exception seen=%s", bci, exceptionObject, profilingInfo.getExceptionSeen(bci));
 
@@ -255,7 +255,7 @@
         FrameStateBuilder dispatchState = frameState.copy();
         dispatchState.clearStack();
 
-        BeginNode dispatchBegin = currentGraph.add(new DispatchBeginNode());
+        DispatchBeginNode dispatchBegin = currentGraph.add(new DispatchBeginNode());
         dispatchBegin.setStateAfter(dispatchState.create(bci));
 
         if (exceptionObject == null) {
@@ -948,7 +948,7 @@
             frameState.pushReturn(resultType, result);
 
         } else {
-            BeginNode exceptionEdge = handleException(null, bci());
+            DispatchBeginNode exceptionEdge = handleException(null, bci());
             InvokeWithExceptionNode invoke = currentGraph.add(new InvokeWithExceptionNode(callTarget, exceptionEdge, bci(), graphId));
             ValueNode result = append(invoke);
             frameState.pushReturn(resultType, result);
@@ -1263,7 +1263,7 @@
         FixedNode target = createTarget(probability, block, stateAfter);
         BeginNode begin = BeginNode.begin(target);
 
-        assert !(target instanceof DeoptimizeNode && begin.stateAfter() != null) :
+        assert !(target instanceof DeoptimizeNode && begin instanceof StateSplit) :
             "We are not allowed to set the stateAfter of the begin node, because we have to deoptimize to a bci _before_ the actual if, so that the interpreter can update the profiling information.";
         return begin;
     }
diff -r 4485e0edd1af -r 53cc37c27b04 graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/InvokeWithExceptionNode.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/InvokeWithExceptionNode.java	Thu May 10 00:36:12 2012 +0200
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/InvokeWithExceptionNode.java	Fri May 11 10:13:55 2012 +0200
@@ -48,7 +48,7 @@
      * @param blockSuccessors
      * @param branchProbability
      */
-    public InvokeWithExceptionNode(MethodCallTargetNode callTarget, BeginNode exceptionEdge, int bci, long leafGraphId) {
+    public InvokeWithExceptionNode(MethodCallTargetNode callTarget, DispatchBeginNode exceptionEdge, int bci, long leafGraphId) {
         super(callTarget.returnStamp(), new BeginNode[]{null, exceptionEdge}, new double[]{1.0, 0.0});
         this.bci = bci;
         this.callTarget = callTarget;
@@ -57,8 +57,8 @@
         this.useForInlining = true;
     }
 
-    public BeginNode exceptionEdge() {
-        return blockSuccessor(EXCEPTION_EDGE);
+    public DispatchBeginNode exceptionEdge() {
+        return (DispatchBeginNode) blockSuccessor(EXCEPTION_EDGE);
     }
 
     public void setExceptionEdge(BeginNode x) {
diff -r 4485e0edd1af -r 53cc37c27b04 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	Thu May 10 00:36:12 2012 +0200
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/StructuredGraph.java	Fri May 11 10:13:55 2012 +0200
@@ -40,7 +40,7 @@
 
     public static final long INVALID_GRAPH_ID = -1;
     private static final AtomicLong uniqueGraphIds = new AtomicLong();
-    private final BeginNode start;
+    private final StartNode start;
     private final RiResolvedMethod method;
     private final long graphId;
 
@@ -94,7 +94,7 @@
         return buf.toString();
     }
 
-    public BeginNode start() {
+    public StartNode start() {
         return start;
     }