[NDS32 11/46] Add preliminary NDS32 Assembly Printer

[shiva0217]

Summary

Add preliminary NDS32 Assembly Printer.
Now we can incremental adding instructions with testcases.

lib/Target/NDS32/CMakeLists.txt

 add_llvm_target(NDS32CodeGen
   NDS32ISelDAGToDAG.cpp
   NDS32ISelLowering.cpp
+  NDS32MachineFunctionInfo.cpp
   NDS32TargetMachine.cpp
   )
 

lib/Target/NDS32/NDS32MachineFunctionInfo.h

+//=== NDS32MachineFunctionInfo.h - NDS32 machine function info -*- 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 NDS32-specific per-machine-function information.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_NDS32_NDS32MACHINEFUNCTIONINFO_H
+#define LLVM_LIB_TARGET_NDS32_NDS32MACHINEFUNCTIONINFO_H
+
+#include "llvm/CodeGen/MachineFunction.h"
+
+namespace llvm {
+
+/// NDS32MachineFunctionInfo - This class is derived from MachineFunction and
+/// contains private NDS32 target-specific information for each MachineFunction.
+class NDS32MachineFunctionInfo : public MachineFunctionInfo {
+  virtual void anchor();
+
+  /// CalleeSavedFrameSize - Size of the callee-saved register portion of the
+  /// stack frame in bytes.
+  unsigned CalleeSavedFrameSize;
+
+  /// ReturnAddrIndex - FrameIndex for return slot.
+  int ReturnAddrIndex;
+
+  /// VarArgsFrameIndex - FrameIndex for start of varargs area.
+  int VarArgsFrameIndex;
+
+public:
+  NDS32MachineFunctionInfo() : CalleeSavedFrameSize(0) {}
+
+  explicit NDS32MachineFunctionInfo(MachineFunction &MF)
+    : CalleeSavedFrameSize(0), ReturnAddrIndex(0) {}
+
+  unsigned getCalleeSavedFrameSize() const { return CalleeSavedFrameSize; }
+  void setCalleeSavedFrameSize(unsigned bytes) { CalleeSavedFrameSize = bytes; }
+
+  int getRAIndex() const { return ReturnAddrIndex; }
+  void setRAIndex(int Index) { ReturnAddrIndex = Index; }
+
+  int getVarArgsFrameIndex() const { return VarArgsFrameIndex;}
+  void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
+};
+
+} // End llvm namespace
+
+#endif

lib/Target/NDS32/NDS32MachineFunctionInfo.cpp

+//===-- NDS32MachineFunctionInfo.cpp - NDS32 machine function info --------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "NDS32MachineFunctionInfo.h"
+
+using namespace llvm;
+
+void NDS32MachineFunctionInfo::anchor() { }