# HG changeset patch
# User Tom Rodriguez <tom.rodriguez@oracle.com>
# Date 1429834732 25200
# Node ID 05e3ec9d5aa2de021ab1ca07c0db82e92b7e2a58
# Parent  5d7a2915c96cf9e64a6865d369020cac7d7ca108
Make sure an after state is available when lowering checkcast arraycopy

diff -r 5d7a2915c96c -r 05e3ec9d5aa2 graal/com.oracle.graal.hotspot.test/src/com/oracle/graal/hotspot/test/ArrayCopyIntrinsificationTest.java
--- a/graal/com.oracle.graal.hotspot.test/src/com/oracle/graal/hotspot/test/ArrayCopyIntrinsificationTest.java	Thu Apr 23 17:17:52 2015 -0700
+++ b/graal/com.oracle.graal.hotspot.test/src/com/oracle/graal/hotspot/test/ArrayCopyIntrinsificationTest.java	Thu Apr 23 17:18:52 2015 -0700
@@ -256,7 +256,6 @@
      * "https://code.google.com/r/baggiogamp-guava/source/browse/guava/src/com/google/common/collect/ArrayTable.java?r=d2e06112416223cb5437d43c12a989c0adc7345b#181"
      * > com.google.common.collect.ArrayTable(ArrayTable other)</a>.
      */
-    @Ignore
     @Test
     public void testCopyRows() {
         mustIntrinsify = false;
diff -r 5d7a2915c96c -r 05e3ec9d5aa2 graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/replacements/arraycopy/ArrayCopySnippets.java
--- a/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/replacements/arraycopy/ArrayCopySnippets.java	Thu Apr 23 17:17:52 2015 -0700
+++ b/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/replacements/arraycopy/ArrayCopySnippets.java	Thu Apr 23 17:18:52 2015 -0700
@@ -207,6 +207,9 @@
             // copied elements (xor'd with -1).
             copiedElements ^= -1;
             System.arraycopy(nonNullSrc, srcPos + copiedElements, nonNullDest, destPos + copiedElements, length - copiedElements);
+        } else {
+            // Capture an after state for this path.
+            ArrayCopyStateNode.captureState();
         }
     }
 
diff -r 5d7a2915c96c -r 05e3ec9d5aa2 graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/replacements/arraycopy/ArrayCopyStateNode.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/replacements/arraycopy/ArrayCopyStateNode.java	Thu Apr 23 17:18:52 2015 -0700
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+//JaCoCo Exclude
+package com.oracle.graal.hotspot.replacements.arraycopy;
+
+import com.oracle.graal.api.meta.*;
+import com.oracle.graal.compiler.common.type.*;
+import com.oracle.graal.graph.*;
+import com.oracle.graal.nodeinfo.*;
+import com.oracle.graal.nodes.*;
+import com.oracle.graal.nodes.spi.*;
+
+/**
+ * A dummy node whose only purpose is to capture a final {@link FrameState} when lowering complex
+ * arraycopy snippets.
+ */
+
+@NodeInfo
+public final class ArrayCopyStateNode extends AbstractStateSplit implements Lowerable {
+
+    public static final NodeClass<ArrayCopyStateNode> TYPE = NodeClass.create(ArrayCopyStateNode.class);
+
+    protected ArrayCopyStateNode() {
+        super(TYPE, StampFactory.forKind(Kind.Void));
+
+    }
+
+    @Override
+    public void lower(LoweringTool tool) {
+        if (graph().getGuardsStage().areFrameStatesAtDeopts()) {
+            graph().removeFixed(this);
+        }
+    }
+
+    @NodeIntrinsic
+    public static native void captureState();
+}