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diff --git a/asm-analysis/src/main/java/org/objectweb/asm/tree/analysis/SourceValue.java b/asm-analysis/src/main/java/org/objectweb/asm/tree/analysis/SourceValue.java
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+// ASM: a very small and fast Java bytecode manipulation framework
+// Copyright (c) 2000-2011 INRIA, France Telecom
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the copyright holders nor the names of its
+//    contributors may be used to endorse or promote products derived from
+//    this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+// THE POSSIBILITY OF SUCH DAMAGE.
+package org.objectweb.asm.tree.analysis;
+
+import java.util.Set;
+import org.objectweb.asm.tree.AbstractInsnNode;
+
+/**
+ * A {@link Value} which keeps track of the bytecode instructions that can produce it.
+ *
+ * @author Eric Bruneton
+ */
+public class SourceValue implements Value {
+
+  /**
+   * The size of this value, in 32 bits words. This size is 1 for byte, boolean, char, short, int,
+   * float, object and array types, and 2 for long and double.
+   */
+  public final int size;
+
+  /**
+   * The instructions that can produce this value. For example, for the Java code below, the
+   * instructions that can produce the value of {@code i} at line 5 are the two ISTORE instructions
+   * at line 1 and 3:
+   *
+   * <pre>
+   * 1: i = 0;
+   * 2: if (...) {
+   * 3:   i = 1;
+   * 4: }
+   * 5: return i;
+   * </pre>
+   */
+  public final Set<AbstractInsnNode> insns;
+
+  /**
+   * Constructs a new {@link SourceValue}.
+   *
+   * @param size the size of this value, in 32 bits words. This size is 1 for byte, boolean, char,
+   *     short, int, float, object and array types, and 2 for long and double.
+   */
+  public SourceValue(final int size) {
+    this(size, new SmallSet<>());
+  }
+
+  /**
+   * Constructs a new {@link SourceValue}.
+   *
+   * @param size the size of this value, in 32 bits words. This size is 1 for byte, boolean, char,
+   *     short, int, float, object and array types, and 2 for long and double.
+   * @param insnNode an instruction that can produce this value.
+   */
+  public SourceValue(final int size, final AbstractInsnNode insnNode) {
+    this.size = size;
+    this.insns = new SmallSet<>(insnNode);
+  }
+
+  /**
+   * Constructs a new {@link SourceValue}.
+   *
+   * @param size the size of this value, in 32 bits words. This size is 1 for byte, boolean, char,
+   *     short, int, float, object and array types, and 2 for long and double.
+   * @param insnSet the instructions that can produce this value.
+   */
+  public SourceValue(final int size, final Set<AbstractInsnNode> insnSet) {
+    this.size = size;
+    this.insns = insnSet;
+  }
+
+  /**
+   * Returns the size of this value.
+   *
+   * @return the size of this value, in 32 bits words. This size is 1 for byte, boolean, char,
+   *     short, int, float, object and array types, and 2 for long and double.
+   */
+  @Override
+  public int getSize() {
+    return size;
+  }
+
+  @Override
+  public boolean equals(final Object value) {
+    if (!(value instanceof SourceValue)) {
+      return false;
+    }
+    SourceValue sourceValue = (SourceValue) value;
+    return size == sourceValue.size && insns.equals(sourceValue.insns);
+  }
+
+  @Override
+  public int hashCode() {
+    return insns.hashCode();
+  }
+}