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diff --git a/include/llvm/System/Memory.h b/include/llvm/System/Memory.h
deleted file mode 100644
index 2dd36e8ab147..000000000000
--- a/include/llvm/System/Memory.h
+++ /dev/null
@@ -1,96 +0,0 @@
-//===- llvm/System/Memory.h - Memory Support --------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file declares the llvm::sys::Memory class.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_SYSTEM_MEMORY_H
-#define LLVM_SYSTEM_MEMORY_H
-
-#include "llvm/System/DataTypes.h"
-#include <string>
-
-namespace llvm {
-namespace sys {
-
-  /// This class encapsulates the notion of a memory block which has an address
-  /// and a size. It is used by the Memory class (a friend) as the result of
-  /// various memory allocation operations.
-  /// @see Memory
-  /// @brief Memory block abstraction.
-  class MemoryBlock {
-  public:
-    MemoryBlock() : Address(0), Size(0) { }
-    MemoryBlock(void *addr, size_t size) : Address(addr), Size(size) { }
-    void *base() const { return Address; }
-    size_t size() const { return Size; }
-  private:
-    void *Address;    ///< Address of first byte of memory area
-    size_t Size;      ///< Size, in bytes of the memory area
-    friend class Memory;
-  };
-
-  /// This class provides various memory handling functions that manipulate
-  /// MemoryBlock instances.
-  /// @since 1.4
-  /// @brief An abstraction for memory operations.
-  class Memory {
-  public:
-    /// This method allocates a block of Read/Write/Execute memory that is
-    /// suitable for executing dynamically generated code (e.g. JIT). An
-    /// attempt to allocate \p NumBytes bytes of virtual memory is made.
-    /// \p NearBlock may point to an existing allocation in which case
-    /// an attempt is made to allocate more memory near the existing block.
-    ///
-    /// On success, this returns a non-null memory block, otherwise it returns
-    /// a null memory block and fills in *ErrMsg.
-    /// 
-    /// @brief Allocate Read/Write/Execute memory.
-    static MemoryBlock AllocateRWX(size_t NumBytes,
-                                   const MemoryBlock *NearBlock,
-                                   std::string *ErrMsg = 0);
-
-    /// This method releases a block of Read/Write/Execute memory that was
-    /// allocated with the AllocateRWX method. It should not be used to
-    /// release any memory block allocated any other way.
-    ///
-    /// On success, this returns false, otherwise it returns true and fills
-    /// in *ErrMsg.
-    /// @brief Release Read/Write/Execute memory.
-    static bool ReleaseRWX(MemoryBlock &block, std::string *ErrMsg = 0);
-    
-    
-    /// InvalidateInstructionCache - Before the JIT can run a block of code
-    /// that has been emitted it must invalidate the instruction cache on some
-    /// platforms.
-    static void InvalidateInstructionCache(const void *Addr, size_t Len);
-
-    /// setExecutable - Before the JIT can run a block of code, it has to be
-    /// given read and executable privilege. Return true if it is already r-x
-    /// or the system is able to change its previlege.
-    static bool setExecutable (MemoryBlock &M, std::string *ErrMsg = 0);
-
-    /// setWritable - When adding to a block of code, the JIT may need
-    /// to mark a block of code as RW since the protections are on page
-    /// boundaries, and the JIT internal allocations are not page aligned.
-    static bool setWritable (MemoryBlock &M, std::string *ErrMsg = 0);
-
-    /// setRangeExecutable - Mark the page containing a range of addresses 
-    /// as executable.
-    static bool setRangeExecutable(const void *Addr, size_t Size);
-
-    /// setRangeWritable - Mark the page containing a range of addresses 
-    /// as writable.
-    static bool setRangeWritable(const void *Addr, size_t Size);
-  };
-}
-}
-
-#endif