diff --git a/include/abg-ir.h b/include/abg-ir.h
index 9ca083c0..dca0d12a 100644
--- a/include/abg-ir.h
+++ b/include/abg-ir.h
@@ -2326,6 +2326,7 @@ public:
       uint64_t get_unsigned_value();
       void set_unsigned(uint64_t v);
       void set_signed(int64_t v);
+      bool operator==(const bound_value&) const;
     }; //end class bound_value
 
     /// Hasher for an instance of array::subrange
diff --git a/src/abg-ir.cc b/src/abg-ir.cc
index 516e34b9..a78889ab 100644
--- a/src/abg-ir.cc
+++ b/src/abg-ir.cc
@@ -14738,6 +14738,17 @@ array_type_def::subrange_type::bound_value::set_signed(int64_t v)
   v_.signed_ = v;
 }
 
+/// Equality operator of the bound value.
+///
+/// @param v the other bound value to compare with.
+///
+/// @return true iff the current bound value equals @p v.
+bool
+array_type_def::subrange_type::bound_value::operator==(const bound_value& v) const
+{
+  return s_ == v.s_ && v_.unsigned_ == v.v_.unsigned_;
+}
+
 // </array_type_def::subrante_type::bound_value>
 
 struct array_type_def::subrange_type::priv