Make NamedMDNode not be a subclass of Value, and simplify the interface

for creating and populating NamedMDNodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109061 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/ValueSymbolTable.h

@@ -128,94 +128,6 @@ private:
 /// @}
 };
 
-/// This class provides a symbol table of name/NamedMDNode pairs. It is 
-/// essentially a StringMap wrapper.
-
-class MDSymbolTable {
-  friend class SymbolTableListTraits<NamedMDNode, Module>;
-/// @name Types
-/// @{
-private:
-  /// @brief A mapping of names to metadata
-  typedef StringMap<NamedMDNode*> MDMap;
-
-public:
-  /// @brief An iterator over a ValueMap.
-  typedef MDMap::iterator iterator;
-
-  /// @brief A const_iterator over a ValueMap.
-  typedef MDMap::const_iterator const_iterator;
-
-/// @}
-/// @name Constructors
-/// @{
-public:
-
-  MDSymbolTable(const MDNode &);             // DO NOT IMPLEMENT
-  void operator=(const MDSymbolTable &);     // DO NOT IMPLEMENT
-  MDSymbolTable() : mmap(0) {}
-  ~MDSymbolTable();
-
-/// @}
-/// @name Accessors
-/// @{
-public:
-
-  /// This method finds the value with the given \p Name in the
-  /// the symbol table. 
-  /// @returns the NamedMDNode associated with the \p Name
-  /// @brief Lookup a named Value.
-  NamedMDNode *lookup(StringRef Name) const { return mmap.lookup(Name); }
-
-  /// @returns true iff the symbol table is empty
-  /// @brief Determine if the symbol table is empty
-  inline bool empty() const { return mmap.empty(); }
-
-  /// @brief The number of name/type pairs is returned.
-  inline unsigned size() const { return unsigned(mmap.size()); }
-
-/// @}
-/// @name Iteration
-/// @{
-public:
-  /// @brief Get an iterator that from the beginning of the symbol table.
-  inline iterator begin() { return mmap.begin(); }
-
-  /// @brief Get a const_iterator that from the beginning of the symbol table.
-  inline const_iterator begin() const { return mmap.begin(); }
-
-  /// @brief Get an iterator to the end of the symbol table.
-  inline iterator end() { return mmap.end(); }
-
-  /// @brief Get a const_iterator to the end of the symbol table.
-  inline const_iterator end() const { return mmap.end(); }
-  
-/// @}
-/// @name Mutators
-/// @{
-public:
-  /// insert - The method inserts a new entry into the stringmap. This will
-  /// replace existing entry, if any.
-  void insert(StringRef Name,  NamedMDNode *Node) {
-    StringMapEntry<NamedMDNode *> &Entry = 
-      mmap.GetOrCreateValue(Name, Node);
-    if (Entry.getValue() != Node) {
-      mmap.remove(&Entry);
-      (void) mmap.GetOrCreateValue(Name, Node);
-    }
-  }
-  
-  /// This method removes a NamedMDNode from the symbol table.  
-  void remove(StringRef Name) { mmap.erase(Name); }
-
-/// @}
-/// @name Internal Data
-/// @{
-private:
-  MDMap mmap;                  ///< The map that holds the symbol table.
-/// @}
-};
-
 } // End llvm namespace
 
 #endif