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diff --git a/src/proguard/evaluation/value/SpecificIntegerValue.java b/src/proguard/evaluation/value/SpecificIntegerValue.java
new file mode 100644
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+++ b/src/proguard/evaluation/value/SpecificIntegerValue.java
@@ -0,0 +1,354 @@
+/*
+ * ProGuard -- shrinking, optimization, obfuscation, and preverification
+ *             of Java bytecode.
+ *
+ * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program 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 for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+package proguard.evaluation.value;
+
+/**
+ * This IntegerValue represents a specific integer value.
+ *
+ * @author Eric Lafortune
+ */
+abstract class SpecificIntegerValue extends IntegerValue
+{
+    // Implementations of unary methods of IntegerValue.
+
+    public IntegerValue negate()
+    {
+        return new NegatedIntegerValue(this);
+    }
+
+    public IntegerValue convertToByte()
+    {
+        return new ConvertedByteValue(this);
+    }
+
+    public IntegerValue convertToCharacter()
+    {
+        return new ConvertedCharacterValue(this);
+    }
+
+    public IntegerValue convertToShort()
+    {
+        return new ConvertedShortValue(this);
+    }
+
+    public LongValue convertToLong()
+    {
+        return new ConvertedLongValue(this);
+    }
+
+    public FloatValue convertToFloat()
+    {
+        return new ConvertedFloatValue(this);
+    }
+
+    public DoubleValue convertToDouble()
+    {
+        return new ConvertedDoubleValue(this);
+    }
+
+
+    // Implementations of binary methods of IntegerValue.
+
+    public IntegerValue generalize(IntegerValue other)
+    {
+        return other.generalize(this);
+    }
+
+    public IntegerValue add(IntegerValue other)
+    {
+        return other.add(this);
+    }
+
+    public IntegerValue subtract(IntegerValue other)
+    {
+        return other.subtractFrom(this);
+    }
+
+    public IntegerValue subtractFrom(IntegerValue other)
+    {
+        return other.subtract(this);
+    }
+
+    public IntegerValue multiply(IntegerValue other)
+    {
+        return other.multiply(this);
+    }
+
+    public IntegerValue divide(IntegerValue other)
+    throws ArithmeticException
+    {
+        return other.divideOf(this);
+    }
+
+    public IntegerValue divideOf(IntegerValue other)
+    throws ArithmeticException
+    {
+        return other.divide(this);
+    }
+
+    public IntegerValue remainder(IntegerValue other)
+    throws ArithmeticException
+    {
+        return other.remainderOf(this);
+    }
+
+    public IntegerValue remainderOf(IntegerValue other)
+    throws ArithmeticException
+    {
+        return other.remainder(this);
+    }
+
+    public IntegerValue shiftLeft(IntegerValue other)
+    {
+        return other.shiftLeftOf(this);
+    }
+
+    public IntegerValue shiftLeftOf(IntegerValue other)
+    {
+        return other.shiftLeft(this);
+    }
+
+    public IntegerValue shiftRight(IntegerValue other)
+    {
+        return other.shiftRightOf(this);
+    }
+
+    public IntegerValue shiftRightOf(IntegerValue other)
+    {
+        return other.shiftRight(this);
+    }
+
+    public IntegerValue unsignedShiftRight(IntegerValue other)
+    {
+        return other.unsignedShiftRightOf(this);
+    }
+
+    public IntegerValue unsignedShiftRightOf(IntegerValue other)
+    {
+        return other.unsignedShiftRight(this);
+    }
+
+    public LongValue shiftLeftOf(LongValue other)
+    {
+        return other.shiftLeft(this);
+    }
+
+    public LongValue shiftRightOf(LongValue other)
+    {
+        return other.shiftRight(this);
+    }
+
+    public LongValue unsignedShiftRightOf(LongValue other)
+    {
+        return other.unsignedShiftRight(this);
+    }
+
+    public IntegerValue and(IntegerValue other)
+    {
+        return other.and(this);
+    }
+
+    public IntegerValue or(IntegerValue other)
+    {
+        return other.or(this);
+    }
+
+    public IntegerValue xor(IntegerValue other)
+    {
+        return other.xor(this);
+    }
+
+    public int equal(IntegerValue other)
+    {
+        return other.equal(this);
+    }
+
+    public int lessThan(IntegerValue other)
+    {
+        return other.greaterThan(this);
+    }
+
+    public int lessThanOrEqual(IntegerValue other)
+    {
+        return other.greaterThanOrEqual(this);
+    }
+
+
+    // Implementations of binary IntegerValue methods with SpecificIntegerValue
+    // arguments.
+
+    public IntegerValue generalize(SpecificIntegerValue other)
+    {
+        return this.equals(other) ? this : ValueFactory.INTEGER_VALUE;
+    }
+
+    public IntegerValue add(SpecificIntegerValue other)
+    {
+        return new CompositeIntegerValue(this, CompositeIntegerValue.ADD, other);
+    }
+
+    public IntegerValue subtract(SpecificIntegerValue other)
+    {
+        return this.equals(other) ?
+            SpecificValueFactory.INTEGER_VALUE_0 :
+            new CompositeIntegerValue(this, CompositeIntegerValue.SUBTRACT, other);
+    }
+
+    public IntegerValue subtractFrom(SpecificIntegerValue other)
+    {
+        return this.equals(other) ?
+            SpecificValueFactory.INTEGER_VALUE_0 :
+            new CompositeIntegerValue(other, CompositeIntegerValue.SUBTRACT, this);
+    }
+
+    public IntegerValue multiply(SpecificIntegerValue other)
+    {
+        return new CompositeIntegerValue(this, CompositeIntegerValue.MULTIPLY, other);
+    }
+
+    public IntegerValue divide(SpecificIntegerValue other)
+    throws ArithmeticException
+    {
+        return new CompositeIntegerValue(this, CompositeIntegerValue.DIVIDE, other);
+    }
+
+    public IntegerValue divideOf(SpecificIntegerValue other)
+    throws ArithmeticException
+    {
+        return new CompositeIntegerValue(other, CompositeIntegerValue.DIVIDE, this);
+    }
+
+    public IntegerValue remainder(SpecificIntegerValue other)
+    throws ArithmeticException
+    {
+        return new CompositeIntegerValue(this, CompositeIntegerValue.REMAINDER, other);
+    }
+
+    public IntegerValue remainderOf(SpecificIntegerValue other)
+    throws ArithmeticException
+    {
+        return new CompositeIntegerValue(other, CompositeIntegerValue.REMAINDER, this);
+    }
+
+    public IntegerValue shiftLeft(SpecificIntegerValue other)
+    {
+        return new CompositeIntegerValue(this, CompositeIntegerValue.SHIFT_LEFT, other);
+    }
+
+    public IntegerValue shiftRight(SpecificIntegerValue other)
+    {
+        return new CompositeIntegerValue(this, CompositeIntegerValue.SHIFT_RIGHT, other);
+    }
+
+    public IntegerValue unsignedShiftRight(SpecificIntegerValue other)
+    {
+        return new CompositeIntegerValue(this, CompositeIntegerValue.UNSIGNED_SHIFT_RIGHT, other);
+    }
+
+    public IntegerValue shiftLeftOf(SpecificIntegerValue other)
+    {
+        return new CompositeIntegerValue(other, CompositeIntegerValue.SHIFT_LEFT, this);
+    }
+
+    public IntegerValue shiftRightOf(SpecificIntegerValue other)
+    {
+        return new CompositeIntegerValue(other, CompositeIntegerValue.SHIFT_RIGHT, this);
+    }
+
+    public IntegerValue unsignedShiftRightOf(SpecificIntegerValue other)
+    {
+        return new CompositeIntegerValue(other, CompositeIntegerValue.UNSIGNED_SHIFT_RIGHT, this);
+    }
+
+    public LongValue shiftLeftOf(SpecificLongValue other)
+    {
+        return new CompositeLongValue(other, CompositeLongValue.SHIFT_LEFT, this);
+    }
+
+    public LongValue shiftRightOf(SpecificLongValue other)
+    {
+        return new CompositeLongValue(other, CompositeLongValue.SHIFT_RIGHT, this);
+    }
+
+    public LongValue unsignedShiftRightOf(SpecificLongValue other)
+    {
+        return new CompositeLongValue(other, CompositeLongValue.UNSIGNED_SHIFT_RIGHT, this);
+    }
+
+    public IntegerValue and(SpecificIntegerValue other)
+    {
+        return this.equals(other) ?
+            this :
+            new CompositeIntegerValue(other, CompositeIntegerValue.AND, this);
+    }
+
+    public IntegerValue or(SpecificIntegerValue other)
+    {
+        return this.equals(other) ?
+            this :
+            new CompositeIntegerValue(other, CompositeIntegerValue.OR, this);
+    }
+
+    public IntegerValue xor(SpecificIntegerValue other)
+    {
+        return this.equals(other) ?
+            SpecificValueFactory.INTEGER_VALUE_0 :
+            new CompositeIntegerValue(other, CompositeIntegerValue.XOR, this);
+    }
+
+    public int equal(SpecificIntegerValue other)
+    {
+        return this.equals(other) ? ALWAYS : MAYBE;
+    }
+
+    public int lessThan(SpecificIntegerValue other)
+    {
+        return this.equals(other) ? NEVER : MAYBE;
+    }
+
+    public int lessThanOrEqual(SpecificIntegerValue other)
+    {
+        return this.equals(other) ? ALWAYS : MAYBE;
+    }
+
+
+    // Implementations for Value.
+
+    public boolean isSpecific()
+    {
+        return true;
+    }
+
+
+    // Implementations for Object.
+
+    public boolean equals(Object object)
+    {
+        return object != null &&
+               this.getClass() == object.getClass();
+    }
+
+
+    public int hashCode()
+    {
+        return this.getClass().hashCode();
+    }
+}