Dummy MSP430 backend

llvm-svn: 70694

1 files changed, 56 insertions, 0 deletions

diff --git a/llvm/lib/Target/MSP430/MSP430RegisterInfo.h b/llvm/lib/Target/MSP430/MSP430RegisterInfo.h
new file mode 100644
index 00000000000..f1c40952636
--- /dev/null
+++ b/llvm/lib/Target/MSP430/MSP430RegisterInfo.h
@@ -0,0 +1,56 @@
+//===- MSP430RegisterInfo.h - MSP430 Register Information Impl --*- 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 MSP430 implementation of the MRegisterInfo class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TARGET_MSP430REGISTERINFO_H
+#define LLVM_TARGET_MSP430REGISTERINFO_H
+
+#include "llvm/Target/TargetRegisterInfo.h"
+#include "MSP430GenRegisterInfo.h.inc"
+
+namespace llvm {
+
+class TargetInstrInfo;
+
+struct MSP430RegisterInfo : public MSP430GenRegisterInfo {
+private:
+  const TargetInstrInfo &TII;
+public:
+  MSP430RegisterInfo(const TargetInstrInfo &tii);
+
+  /// Code Generation virtual methods...
+  const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
+
+  const TargetRegisterClass* const*
+    getCalleeSavedRegClasses(const MachineFunction *MF = 0) const;
+
+  BitVector getReservedRegs(const MachineFunction &MF) const;
+
+  bool hasFP(const MachineFunction &MF) const;
+
+  void eliminateFrameIndex(MachineBasicBlock::iterator II,
+                           int SPAdj, RegScavenger *RS = NULL) const;
+
+  void emitPrologue(MachineFunction &MF) const;
+  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
+
+  // Debug information queries.
+  unsigned getRARegister() const;
+  unsigned getFrameRegister(MachineFunction &MF) const;
+
+  //! Get DWARF debugging register number
+  int getDwarfRegNum(unsigned RegNum, bool isEH) const;
+};
+
+} // end namespace llvm
+
+#endif // LLVM_TARGET_MSP430REGISTERINFO_H