--- a/graal/com.oracle.graal.phases/src/com/oracle/graal/phases/tiers/HighTierContext.java	Fri Apr 12 13:44:44 2013 +0200
+++ b/graal/com.oracle.graal.phases/src/com/oracle/graal/phases/tiers/HighTierContext.java	Fri Apr 12 13:49:29 2013 +0200
@@ -25,21 +25,9 @@
 import com.oracle.graal.api.code.*;
 import com.oracle.graal.api.meta.*;
 
-public class HighTierContext {
-
-    private final MetaAccessProvider runtime;
-    private final Assumptions assumptions;
+public class HighTierContext extends PhaseContext {
 
     public HighTierContext(MetaAccessProvider runtime, Assumptions assumptions) {
-        this.runtime = runtime;
-        this.assumptions = assumptions;
-    }
-
-    public MetaAccessProvider getRuntime() {
-        return runtime;
-    }
-
-    public Assumptions getAssumptions() {
-        return assumptions;
+        super(runtime, assumptions);
     }
 }

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.phases/src/com/oracle/graal/phases/tiers/PhaseContext.java	Fri Apr 12 13:49:29 2013 +0200
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2013, 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.phases.tiers;
+
+import com.oracle.graal.api.code.*;
+import com.oracle.graal.api.meta.*;
+
+public class PhaseContext {
+
+    private final MetaAccessProvider runtime;
+    private final Assumptions assumptions;
+
+    public PhaseContext(MetaAccessProvider runtime, Assumptions assumptions) {
+        this.runtime = runtime;
+        this.assumptions = assumptions;
+    }
+
+    public MetaAccessProvider getRuntime() {
+        return runtime;
+    }
+
+    public Assumptions getAssumptions() {
+        return assumptions;
+    }
+}