--- a/graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/GraalOptions.java	Wed Jul 06 21:48:33 2011 +0200
+++ b/graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/GraalOptions.java	Thu Jul 07 16:07:11 2011 +0200
@@ -85,6 +85,8 @@
     public static boolean PrintDOTGraphToPdf                 = ____;
     public static boolean OmitDOTFrameStates                 = ____;
 
+    public static boolean Extend                             = ____;
+
     // Ideal graph visualizer output settings
     public static boolean Plot                               = ____;
     public static boolean PlotOnError                        = ____;

--- a/graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/phases/InliningPhase.java	Wed Jul 06 21:48:33 2011 +0200
+++ b/graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/phases/InliningPhase.java	Thu Jul 07 16:07:11 2011 +0200
@@ -31,6 +31,7 @@
 import com.oracle.max.graal.compiler.ir.*;
 import com.oracle.max.graal.compiler.ir.Deoptimize.DeoptAction;
 import com.oracle.max.graal.compiler.value.*;
+import com.oracle.max.graal.extensions.*;
 import com.oracle.max.graal.graph.*;
 import com.sun.cri.bytecode.*;
 import com.sun.cri.ci.*;
@@ -314,14 +315,28 @@
             if (GraalOptions.TraceInlining) {
                 TTY.println("not inlining %s because of code size (size: %d, max size: %d, ratio %5.3f, %s)", methodName(method, invoke), method.codeSize(), maximumSize, ratio, profile);
             }
+            if (GraalOptions.Extend) {
+                return overrideInliningDecision(method, false);
+            }
             return false;
         }
         if (GraalOptions.TraceInlining) {
             TTY.println("inlining %s (size: %d, max size: %d, ratio %5.3f, %s)", methodName(method, invoke), method.codeSize(), maximumSize, ratio, profile);
         }
+        if (GraalOptions.Extend) {
+            return overrideInliningDecision(method, true);
+        }
         return true;
     }
 
+    private boolean overrideInliningDecision(RiMethod method, boolean previousDecision) {
+        ServiceLoader<InliningGuide> loader = ServiceLoader.load(InliningGuide.class);
+        for (InliningGuide guide : loader) {
+            TTY.println("inlining guide " + guide);
+        }
+        return previousDecision;
+    }
+
     private void inlineMethod(Invoke invoke, RiMethod method) {
         RiMethod parent = invoke.stateAfter().method();
         FrameState stateAfter = invoke.stateAfter();

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/extensions/InliningGuide.java	Thu Jul 07 16:07:11 2011 +0200
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2009, 2011, 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.max.graal.extensions;
+
+
+public interface InliningGuide {
+
+}