1 //===- MSP430RegisterInfo.h - MSP430 Register Information Impl --*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains the MSP430 implementation of the MRegisterInfo class.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_TARGET_MSP430REGISTERINFO_H
15 #define LLVM_TARGET_MSP430REGISTERINFO_H
17 #include "llvm/Target/TargetRegisterInfo.h"
18 #include "MSP430GenRegisterInfo.h.inc"
22 class TargetInstrInfo;
23 class MSP430TargetMachine;
25 struct MSP430RegisterInfo : public MSP430GenRegisterInfo {
27 MSP430TargetMachine &TM;
28 const TargetInstrInfo &TII;
30 /// StackAlign - Default stack alignment.
34 MSP430RegisterInfo(MSP430TargetMachine &tm, const TargetInstrInfo &tii);
36 /// Code Generation virtual methods...
37 const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
39 BitVector getReservedRegs(const MachineFunction &MF) const;
40 const TargetRegisterClass* getPointerRegClass(unsigned Kind = 0) const;
42 const TargetRegisterClass *
43 getMatchingSuperRegClass(const TargetRegisterClass *A,
44 const TargetRegisterClass *B, unsigned Idx) const {
45 // No sub-classes makes this really easy.
49 void eliminateCallFramePseudoInstr(MachineFunction &MF,
50 MachineBasicBlock &MBB,
51 MachineBasicBlock::iterator I) const;
53 void eliminateFrameIndex(MachineBasicBlock::iterator II,
54 int SPAdj, RegScavenger *RS = NULL) const;
56 void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
58 // Debug information queries.
59 unsigned getRARegister() const;
60 unsigned getFrameRegister(const MachineFunction &MF) const;
62 //! Get DWARF debugging register number
63 int getDwarfRegNum(unsigned RegNum, bool isEH) const;
64 int getLLVMRegNum(unsigned RegNum, bool isEH) const;
67 } // end namespace llvm
69 #endif // LLVM_TARGET_MSP430REGISTERINFO_H