[MIPS] Initial support for MIPS architecture.

llvm/lib/Target/Mips/Mips.h

 //===-- Mips.h - Top-level interface for Mips representation ----*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file contains the entry points for global functions defined in
 // the LLVM Mips back-end.
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef TARGET_MIPS_H
 #define TARGET_MIPS_H
 
 #include "MCTargetDesc/MipsMCTargetDesc.h"
 #include "llvm/Target/TargetMachine.h"
 
+/* @LOCALMOD-START */
+namespace llvm {
+
+namespace Mips {
+  extern unsigned LoadStoreStackMaskReg;
+  extern unsigned IndirectBranchMaskReg;
+}
+} // End llvm namespace
+/* @LOCALMOD-END */
+
 namespace llvm {
   class MipsTargetMachine;
   class FunctionPass;
   class MachineCodeEmitter;
   class formatted_raw_ostream;
 
   FunctionPass *createMipsISelDag(MipsTargetMachine &TM);
   FunctionPass *createMipsDelaySlotFillerPass(MipsTargetMachine &TM);
   FunctionPass *createMipsExpandPseudoPass(MipsTargetMachine &TM);
   FunctionPass *createMipsEmitGPRestorePass(MipsTargetMachine &TM);
 
   FunctionPass *createMipsJITCodeEmitterPass(MipsTargetMachine &TM,
                                              JITCodeEmitter &JCE);
 
+  /* @LOCALMOD-START */
+  FunctionPass *createMipsNaClRewritePass();
+  /* @LOCALMOD-END */
+
 } // end namespace llvm;
 
 #endif