1 files changed, 86 insertions, 0 deletions
diff --git a/lib/Target/PIC16/PIC16RegisterInfo.h b/lib/Target/PIC16/PIC16RegisterInfo.h
new file mode 100644
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+++ b/lib/Target/PIC16/PIC16RegisterInfo.h
@@ -0,0 +1,86 @@
+//===- PIC16RegisterInfo.h - PIC16 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 PIC16 implementation of the TargetRegisterInfo class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef PIC16REGISTERINFO_H
+#define PIC16REGISTERINFO_H
+
+#include "PIC16GenRegisterInfo.h.inc"
+#include "llvm/Target/TargetRegisterInfo.h"
+
+namespace llvm {
+
+// Forward Declarations.
+class TargetInstrInfo;
+class Type;
+
+struct PIC16RegisterInfo : public PIC16GenRegisterInfo {
+  const TargetInstrInfo &TII;
+  
+  explicit PIC16RegisterInfo(const TargetInstrInfo &tii);
+
+  /// getRegisterNumbering - Given the enum value for some register, e.g.
+  /// PIC16::RA, return the number that it corresponds to (e.g. 31).
+  static unsigned getRegisterNumbering(unsigned RegEnum);
+
+  void reMaterialize(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
+                     unsigned DestReg, const MachineInstr *Orig) const;
+
+  MachineInstr* foldMemoryOperand(MachineInstr* MI, unsigned OpNum,
+                                  int FrameIndex) const;
+
+  MachineInstr* foldMemoryOperand(MachineInstr* MI, unsigned OpNum,
+                                  MachineInstr* LoadMI) const {
+    return 0;
+  }
+
+  void copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI,
+          	    unsigned DestReg, unsigned SrcReg,
+          	    const TargetRegisterClass *RC) const;
+  
+
+  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 eliminateCallFramePseudoInstr(MachineFunction &MF,
+                                     MachineBasicBlock &MBB,
+                                     MachineBasicBlock::iterator I) const;
+
+  /// Stack Frame Processing Methods.
+  void eliminateFrameIndex(MachineBasicBlock::iterator II,
+                           int SPAdj, RegScavenger *RS = NULL) const;
+
+  void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
+
+  void emitPrologue(MachineFunction &MF) const;
+  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
+  
+  /// Debug information queries.
+  unsigned getRARegister() const;
+  unsigned getFrameRegister(MachineFunction &MF) const;
+
+  /// Exception handling queries.
+  unsigned getEHExceptionRegister() const;
+  unsigned getEHHandlerRegister() const;
+
+  int getDwarfRegNum(unsigned RegNum, bool isEH) const;
+};
+
+} // end namespace llvm
+
+#endif