AArch64RegisterInfo.h [plain text]
#ifndef LLVM_LIB_TARGET_AARCH64_AARCH64REGISTERINFO_H
#define LLVM_LIB_TARGET_AARCH64_AARCH64REGISTERINFO_H
#define GET_REGINFO_HEADER
#include "AArch64GenRegisterInfo.inc"
namespace llvm {
class AArch64InstrInfo;
class AArch64Subtarget;
class MachineFunction;
class RegScavenger;
class TargetRegisterClass;
struct AArch64RegisterInfo : public AArch64GenRegisterInfo {
private:
const AArch64InstrInfo *TII;
const AArch64Subtarget *STI;
public:
AArch64RegisterInfo(const AArch64InstrInfo *tii, const AArch64Subtarget *sti);
bool isReservedReg(const MachineFunction &MF, unsigned Reg) const;
const MCPhysReg *
getCalleeSavedRegs(const MachineFunction *MF = nullptr) const override;
const uint32_t *getCallPreservedMask(CallingConv::ID) const override;
unsigned getCSRFirstUseCost() const override {
return 5;
}
const uint32_t *getTLSCallPreservedMask() const;
const uint32_t *getThisReturnPreservedMask(CallingConv::ID) const;
BitVector getReservedRegs(const MachineFunction &MF) const override;
const TargetRegisterClass *
getPointerRegClass(const MachineFunction &MF,
unsigned Kind = 0) const override;
const TargetRegisterClass *
getCrossCopyRegClass(const TargetRegisterClass *RC) const override;
bool requiresRegisterScavenging(const MachineFunction &MF) const override;
bool useFPForScavengingIndex(const MachineFunction &MF) const override;
bool requiresFrameIndexScavenging(const MachineFunction &MF) const override;
bool needsFrameBaseReg(MachineInstr *MI, int64_t Offset) const override;
bool isFrameOffsetLegal(const MachineInstr *MI,
int64_t Offset) const override;
void materializeFrameBaseRegister(MachineBasicBlock *MBB, unsigned BaseReg,
int FrameIdx,
int64_t Offset) const override;
void resolveFrameIndex(MachineInstr &MI, unsigned BaseReg,
int64_t Offset) const override;
void eliminateFrameIndex(MachineBasicBlock::iterator II, int SPAdj,
unsigned FIOperandNum,
RegScavenger *RS = nullptr) const override;
bool cannotEliminateFrame(const MachineFunction &MF) const;
bool requiresVirtualBaseRegisters(const MachineFunction &MF) const override;
bool hasBasePointer(const MachineFunction &MF) const;
unsigned getBaseRegister() const;
unsigned getFrameRegister(const MachineFunction &MF) const override;
unsigned getRegPressureLimit(const TargetRegisterClass *RC,
MachineFunction &MF) const override;
};
}
#endif