1 //===-- XCoreRegisterInfo.h - XCore Register Information Impl ---*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file contains the XCore implementation of the MRegisterInfo class. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef XCOREREGISTERINFO_H 15 #define XCOREREGISTERINFO_H 16 17 #include "llvm/Target/TargetRegisterInfo.h" 18 19 #define GET_REGINFO_HEADER 20 #include "XCoreGenRegisterInfo.inc" 21 22 namespace llvm { 23 24 class TargetInstrInfo; 25 26 struct XCoreRegisterInfo : public XCoreGenRegisterInfo { 27 private: 28 void loadConstant(MachineBasicBlock &MBB, 29 MachineBasicBlock::iterator I, 30 unsigned DstReg, int64_t Value, DebugLoc dl) const; 31 32 void storeToStack(MachineBasicBlock &MBB, 33 MachineBasicBlock::iterator I, 34 unsigned SrcReg, int Offset, DebugLoc dl) const; 35 36 void loadFromStack(MachineBasicBlock &MBB, 37 MachineBasicBlock::iterator I, 38 unsigned DstReg, int Offset, DebugLoc dl) const; 39 40 public: 41 XCoreRegisterInfo(); 42 43 /// Code Generation virtual methods... 44 45 const uint16_t *getCalleeSavedRegs(const MachineFunction *MF = 0) const; 46 47 BitVector getReservedRegs(const MachineFunction &MF) const; 48 49 bool requiresRegisterScavenging(const MachineFunction &MF) const; 50 51 bool trackLivenessAfterRegAlloc(const MachineFunction &MF) const; 52 53 bool useFPForScavengingIndex(const MachineFunction &MF) const; 54 55 void eliminateFrameIndex(MachineBasicBlock::iterator II, 56 int SPAdj, unsigned FIOperandNum, 57 RegScavenger *RS = NULL) const; 58 59 // Debug information queries. 60 unsigned getFrameRegister(const MachineFunction &MF) const; 61 62 //! Return whether to emit frame moves 63 static bool needsFrameMoves(const MachineFunction &MF); 64 }; 65 66 } // end namespace llvm 67 68 #endif 69