--- /dev/null	2014-11-20 14:38:51.000000000 -0800
+++ new/graal/com.oracle.graal.replacements.amd64/src/com/oracle/graal/replacements/amd64/AMD64IntegerSubstitutions.java	2014-11-20 14:38:51.000000000 -0800
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2012, 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.replacements.amd64;
+
+import com.oracle.graal.api.replacements.*;
+
+@ClassSubstitution(Integer.class)
+public class AMD64IntegerSubstitutions {
+
+    @MethodSubstitution(guard = AMD64Guards.CountLeadingZerosSupported.class)
+    public static int numberOfLeadingZeros(int i) {
+        return AMD64CountLeadingZerosNode.count(i);
+    }
+
+    @MethodSubstitution(guard = AMD64Guards.CountTrailingZerosSupported.class)
+    public static int numberOfTrailingZeros(int i) {
+        return AMD64CountTrailingZerosNode.count(i);
+    }
+}