Initial Mips support, here we go! =)
- Modifications from the last patch included
  (issues pointed by Evan Cheng are now fixed).
- Added more MipsI instructions.
- Added more patterns to match branch instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37461 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsTargetMachine.h b/lib/Target/Mips/MipsTargetMachine.h
new file mode 100644
index 0000000..9e1ccc3
--- /dev/null
+++ b/lib/Target/Mips/MipsTargetMachine.h
@@ -0,0 +1,65 @@
+//===-- MipsTargetMachine.h - Define TargetMachine for Mips -00--*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by Bruno Cardoso Lopes and is distributed under the 
+// University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the Mips specific subclass of TargetMachine.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef MIPSTARGETMACHINE_H
+#define MIPSTARGETMACHINE_H
+
+#include "MipsSubtarget.h"
+#include "MipsInstrInfo.h"
+#include "MipsISelLowering.h"
+#include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetData.h"
+#include "llvm/Target/TargetFrameInfo.h"
+
+namespace llvm {
+  class MipsTargetMachine : public LLVMTargetMachine {
+    MipsSubtarget       Subtarget;
+    const TargetData    DataLayout; // Calculates type size & alignment
+    MipsInstrInfo       InstrInfo;
+    TargetFrameInfo     FrameInfo;
+    MipsTargetLowering  TLInfo;
+  
+  protected:
+    virtual const TargetAsmInfo *createTargetAsmInfo() const;
+  
+  public:
+    MipsTargetMachine(const Module &M, const std::string &FS);
+
+    virtual const MipsInstrInfo   *getInstrInfo()     const 
+    { return &InstrInfo; }
+    virtual const TargetFrameInfo *getFrameInfo()     const 
+    { return &FrameInfo; }
+    virtual const TargetSubtarget *getSubtargetImpl() const 
+    { return &Subtarget; }
+    virtual const TargetData      *getTargetData()    const 
+    { return &DataLayout;}
+
+    virtual const MRegisterInfo   *getRegisterInfo()  const {
+      return &InstrInfo.getRegisterInfo();
+    }
+
+    virtual MipsTargetLowering   *getTargetLowering() const { 
+      return const_cast<MipsTargetLowering*>(&TLInfo); 
+    }
+
+    static unsigned getModuleMatchQuality(const Module &M);
+
+    // Pass Pipeline Configuration
+    virtual bool addInstSelector(FunctionPassManager &PM, bool Fast);
+    virtual bool addPreEmitPass(FunctionPassManager &PM, bool Fast);
+    virtual bool addAssemblyEmitter(FunctionPassManager &PM, bool Fast, 
+                                    std::ostream &Out);
+  };
+} // End llvm namespace
+
+#endif