--- a/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/TruffleReplacements.java	Tue Aug 19 19:17:38 2014 +0200
+++ b/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/TruffleReplacements.java	Tue Aug 19 19:25:44 2014 +0200
@@ -54,6 +54,7 @@
         registerSubstitutions(ExactMath.class, ExactMathSubstitutions.class);
         registerSubstitutions(OptimizedAssumption.class, OptimizedAssumptionSubstitutions.class);
         registerSubstitutions(OptimizedCallTarget.class, OptimizedCallTargetSubstitutions.class);
+        registerSubstitutions(FrameWithoutBoxing.class, FrameWithoutBoxingSubstitutions.class);
     }
 
     @Override

--- a/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/nodes/frame/NewFrameNode.java	Tue Aug 19 19:17:38 2014 +0200
+++ b/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/nodes/frame/NewFrameNode.java	Tue Aug 19 19:25:44 2014 +0200
@@ -153,7 +153,7 @@
         ResolvedJavaField primitiveLocalsField = findField(frameFields, "primitiveLocals");
         ResolvedJavaField tagsField = findField(frameFields, "tags");
 
-        VirtualObjectNode virtualFrame = new VirtualInstanceNode(frameType, frameFields, false);
+        VirtualObjectNode virtualFrame = new VirtualOnlyInstanceNode(frameType, frameFields);
         VirtualObjectNode virtualFrameObjectArray = new VirtualArrayNode((ResolvedJavaType) localsField.getType().getComponentType(), frameSize);
         VirtualObjectNode virtualFramePrimitiveArray = new VirtualArrayNode((ResolvedJavaType) primitiveLocalsField.getType().getComponentType(), frameSize);
         VirtualObjectNode virtualFrameTagArray = new VirtualArrayNode((ResolvedJavaType) tagsField.getType().getComponentType(), frameSize);

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/substitutions/FrameWithoutBoxingSubstitutions.java	Tue Aug 19 19:25:44 2014 +0200
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2014, 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.truffle.substitutions;
+
+import com.oracle.graal.api.replacements.*;
+import com.oracle.graal.truffle.*;
+import com.oracle.graal.truffle.nodes.frame.*;
+import com.oracle.truffle.api.frame.*;
+
+@ClassSubstitution(FrameWithoutBoxing.class)
+public class FrameWithoutBoxingSubstitutions {
+
+    @MethodSubstitution(isStatic = false)
+    public static MaterializedFrame materialize(FrameWithoutBoxing frame) {
+        return MaterializeFrameNode.materialize(frame);
+    }
+}