| //===- XCoreRegisterInfo.h - XCore 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 XCore implementation of the MRegisterInfo class. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef XCOREREGISTERINFO_H |
| #define XCOREREGISTERINFO_H |
| |
| #include "llvm/Target/TargetRegisterInfo.h" |
| |
| #define GET_REGINFO_HEADER |
| #include "XCoreGenRegisterInfo.inc" |
| |
| namespace llvm { |
| |
| class TargetInstrInfo; |
| |
| struct XCoreRegisterInfo : public XCoreGenRegisterInfo { |
| private: |
| const TargetInstrInfo &TII; |
| |
| void loadConstant(MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator I, |
| unsigned DstReg, int64_t Value, DebugLoc dl) const; |
| |
| void storeToStack(MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator I, |
| unsigned SrcReg, int Offset, DebugLoc dl) const; |
| |
| void loadFromStack(MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator I, |
| unsigned DstReg, int Offset, DebugLoc dl) const; |
| |
| public: |
| XCoreRegisterInfo(const TargetInstrInfo &tii); |
| |
| /// Code Generation virtual methods... |
| |
| const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const; |
| |
| BitVector getReservedRegs(const MachineFunction &MF) const; |
| |
| bool requiresRegisterScavenging(const MachineFunction &MF) const; |
| |
| bool useFPForScavengingIndex(const MachineFunction &MF) const; |
| |
| void eliminateCallFramePseudoInstr(MachineFunction &MF, |
| MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator I) const; |
| |
| void eliminateFrameIndex(MachineBasicBlock::iterator II, |
| int SPAdj, RegScavenger *RS = NULL) const; |
| |
| // Debug information queries. |
| unsigned getFrameRegister(const MachineFunction &MF) const; |
| |
| //! Return the array of argument passing registers |
| /*! |
| \note The size of this array is returned by getArgRegsSize(). |
| */ |
| static const unsigned *getArgRegs(const MachineFunction *MF = 0); |
| |
| //! Return the size of the argument passing register array |
| static unsigned getNumArgRegs(const MachineFunction *MF = 0); |
| |
| //! Return whether to emit frame moves |
| static bool needsFrameMoves(const MachineFunction &MF); |
| }; |
| |
| } // end namespace llvm |
| |
| #endif |