--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/InstructionValueConsumer.java	Tue Aug 12 16:09:18 2014 +0200
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2014, 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.lir;
+
+import java.util.*;
+
+import com.oracle.graal.api.meta.*;
+import com.oracle.graal.compiler.common.*;
+import com.oracle.graal.lir.LIRInstruction.*;
+
+/**
+ * Non-modifying version of {@link InstructionValueProcedure}.
+ */
+public abstract class InstructionValueConsumer extends InstructionValueProcedureBase {
+
+    /**
+     * Iterator method to be overwritten. This version of the iterator does not take additional
+     * parameters to keep the signature short.
+     *
+     * @param instruction The current instruction.
+     * @param value The value that is iterated.
+     */
+    protected void visitValue(LIRInstruction instruction, Value value) {
+        throw GraalInternalError.shouldNotReachHere("One of the visitValue() methods must be overwritten");
+    }
+
+    /**
+     * Iterator method to be overwritten. This version of the iterator gets additional parameters
+     * about the processed value.
+     *
+     * @param instruction The current instruction.
+     * @param value The value that is iterated.
+     * @param mode The operand mode for the value.
+     * @param flags A set of flags for the value.
+     */
+    protected void visitValue(LIRInstruction instruction, Value value, OperandMode mode, EnumSet<OperandFlag> flags) {
+        visitValue(instruction, value);
+    }
+
+    @Override
+    public final Value processValue(LIRInstruction instruction, Value value, OperandMode mode, EnumSet<OperandFlag> flags) {
+        visitValue(instruction, value, mode, flags);
+        return value;
+    }
+}
\ No newline at end of file

--- a/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/InstructionValueProcedureBase.java	Tue Aug 12 17:38:00 2014 +0200
+++ b/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/InstructionValueProcedureBase.java	Tue Aug 12 16:09:18 2014 +0200
@@ -34,6 +34,7 @@
  * {@link InstructionValueConsumer} instead.
  *
  * @see InstructionValueProcedure
+ * @see InstructionValueConsumer
  */
 public abstract class InstructionValueProcedureBase {
 

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/ValueConsumer.java	Tue Aug 12 16:09:18 2014 +0200
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2014, 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.lir;
+
+import java.util.*;
+
+import com.oracle.graal.api.meta.*;
+import com.oracle.graal.compiler.common.*;
+import com.oracle.graal.lir.LIRInstruction.*;
+
+/**
+ * Non-modifying version of {@link ValueProcedure}.
+ */
+public abstract class ValueConsumer extends InstructionValueConsumer {
+
+    /**
+     * Iterator method to be overwritten. This version of the iterator does not take additional
+     * parameters to keep the signature short.
+     *
+     * @param value The value that is iterated.
+     */
+    protected void visitValue(Value value) {
+        throw GraalInternalError.shouldNotReachHere("One of the visitValue() methods must be overwritten");
+    }
+
+    /**
+     * Iterator method to be overwritten. This version of the iterator gets additional parameters
+     * about the processed value.
+     *
+     * @param value The value that is iterated.
+     * @param mode The operand mode for the value.
+     * @param flags A set of flags for the value.
+     */
+    protected void visitValue(Value value, OperandMode mode, EnumSet<OperandFlag> flags) {
+        visitValue(value);
+    }
+
+    @Override
+    protected final void visitValue(LIRInstruction instruction, Value value) {
+        throw GraalInternalError.shouldNotReachHere("This visitValue() method should never be called");
+    }
+
+    @Override
+    protected void visitValue(LIRInstruction instruction, Value value, OperandMode mode, EnumSet<OperandFlag> flags) {
+        visitValue(value, mode, flags);
+    }
+}
\ No newline at end of file