diff --git a/llvm/include/llvm/LinkTimeOptimizer.h b/llvm/include/llvm/LinkTimeOptimizer.h
deleted file mode 100644
index eea0093e80f7..000000000000
--- a/llvm/include/llvm/LinkTimeOptimizer.h
+++ /dev/null
@@ -1,179 +0,0 @@
-//===-- llvm/LinkTimeOptimizer.h - Public Interface  ------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-// 
-//===----------------------------------------------------------------------===//
-//
-// This header provides public interface to use LLVM link time optimization
-// library. This is intended to be used by linker to do link time optimization.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef __LTO_H__
-#define __LTO_H__
-
-#include <string>
-#include <vector>
-#include <set>
-#include <llvm/ADT/hash_map>
-#include <cstring>
-
-#define LLVM_LTO_VERSION 2
-
-namespace llvm {
-
-  class Module;
-  class GlobalValue;
-  class TargetMachine;
-
-  enum LTOStatus {
-    LTO_UNKNOWN,
-    LTO_OPT_SUCCESS,
-    LTO_READ_SUCCESS,
-    LTO_READ_FAILURE,
-    LTO_WRITE_FAILURE,
-    LTO_NO_TARGET,
-    LTO_NO_WORK,
-    LTO_MODULE_MERGE_FAILURE,
-    LTO_ASM_FAILURE
-  };
- 
-  enum LTOLinkageTypes {
-    LTOExternalLinkage, // Externally visible function
-    LTOLinkOnceLinkage, // Keep one copy of named function when linking (inline)
-    LTOWeakLinkage,     // Keep one copy of named function when linking (weak)
-    LTOInternalLinkage, // Rename collisions when linking (static functions)
-    LTOCommonLinkage    // tentative definitions (usually equivalent to weak)
-  };
-
-  enum LTOVisibilityTypes {
-    LTODefaultVisibility = 0,  ///< The GV is visible
-    LTOHiddenVisibility,       ///< The GV is hidden
-    LTOProtectedVisibility     ///< The GV is protected
-  };
-
-
-  enum LTOCodeGenModel {
-    LTO_CGM_Static,
-    LTO_CGM_Dynamic,
-    LTO_CGM_DynamicNoPIC
-  };
-
-  /// This class represents LLVM symbol information without exposing details
-  /// of LLVM global values. It encapsulates symbol linkage information. This
-  /// is typically used in hash_map where associated name identifies the 
-  /// the symbol name.
-  class LLVMSymbol {
-
-  public:
-
-    LTOLinkageTypes getLinkage() const { return linkage; }
-    LTOVisibilityTypes getVisibility() const { return visibility; }
-    void mayBeNotUsed();
-
-    LLVMSymbol (enum LTOLinkageTypes lt, enum LTOVisibilityTypes vis, 
-                GlobalValue *g, const std::string &n, 
-                const std::string &m, int a) : linkage(lt), visibility(vis),
-                                               gv(g), name(n), 
-                                               mangledName(m), alignment(a) {}
-
-    const char *getName() { return name.c_str(); }
-    const char *getMangledName() { return mangledName.c_str(); }
-    int getAlignment() { return alignment; }
-
-  private:
-    enum LTOLinkageTypes linkage;
-    enum LTOVisibilityTypes visibility;
-    GlobalValue *gv;
-    std::string name;
-    std::string mangledName;
-    int alignment;
-  };
-
-  class string_compare {
-  public:
-    bool operator()(const char* left, const char* right) const { 
-      return (strcmp(left, right) == 0); 
-    }
-  };
-
-  /// This is abstract class to facilitate dlopen() interface.
-  /// See LTO below for more info.
-  class LinkTimeOptimizer {
-  public:
-    typedef hash_map<const char*, LLVMSymbol*, hash<const char*>, 
-                     string_compare> NameToSymbolMap;
-    typedef hash_map<const char*, Module*, hash<const char*>, 
-                     string_compare> NameToModuleMap;
-    virtual enum LTOStatus readLLVMObjectFile(const std::string &,
-                                              NameToSymbolMap &,
-                                              std::set<std::string> &) = 0;
-    virtual enum LTOStatus optimizeModules(const std::string &,
-                                           std::vector<const char*> &exportList,
-                                           std::string &targetTriple,
-                                           bool saveTemps, const char *) = 0;
-    virtual void getTargetTriple(const std::string &, std::string &) = 0;
-    virtual void removeModule (const std::string &InputFilename) = 0;
-    virtual void setCodeGenModel(LTOCodeGenModel CGM) = 0;
-    virtual void printVersion () = 0;
-    virtual ~LinkTimeOptimizer() = 0;
-  };
-
-  /// This is the main link time optimization class. It exposes simple API
-  /// to perform link time optimization using LLVM intermodular optimizer.
-  class LTO : public LinkTimeOptimizer {
-
-  public:
-    typedef hash_map<const char*, LLVMSymbol*, hash<const char*>, 
-                     string_compare> NameToSymbolMap;
-    typedef hash_map<const char*, Module*, hash<const char*>, 
-                     string_compare> NameToModuleMap;
-
-    enum LTOStatus readLLVMObjectFile(const std::string &InputFilename,
-                                      NameToSymbolMap &symbols,
-                                      std::set<std::string> &references);
-    enum LTOStatus optimizeModules(const std::string &OutputFilename,
-                                   std::vector<const char*> &exportList,
-                                   std::string &targetTriple, 
-                                   bool saveTemps,  const char *);
-    void getTargetTriple(const std::string &InputFilename, 
-                         std::string &targetTriple);
-    void removeModule (const std::string &InputFilename);
-    void printVersion();
-
-    void setCodeGenModel(LTOCodeGenModel CGM) {
-      CGModel = CGM;
-    }
-
-    // Constructors and destructors
-    LTO() : Target(NULL), CGModel(LTO_CGM_Dynamic) {
-      /// TODO: Use Target info, it is available at this time.
-    }
-    ~LTO();
-
-  private:
-    Module *getModule (const std::string &InputFilename);
-    enum LTOStatus optimize(Module *, std::ostream &, 
-                            std::vector<const char *> &);
-    void getTarget(Module *);
-
-  private:
-    std::vector<Module *> modules;
-    NameToSymbolMap allSymbols;
-    NameToModuleMap allModules;
-    TargetMachine *Target;
-    LTOCodeGenModel CGModel;
-  };
-
-} // End llvm namespace
-
-/// This provides C interface to initialize link time optimizer. This allows
-/// linker to use dlopen() interface to dynamically load LinkTimeOptimizer.
-/// extern "C" helps, because dlopen() interface uses name to find the symbol.
-extern "C"
-llvm::LinkTimeOptimizer *createLLVMOptimizer(unsigned VERSION = LLVM_LTO_VERSION);
-
-#endif