+ unsigned getRegPressureLimit(const TargetRegisterClass *RC,
+ MachineFunction &MF) const override;
+ const MCPhysReg *
+ getCalleeSavedRegs(const MachineFunction *MF = nullptr) const override;
+ const uint32_t *getCallPreservedMask(CallingConv::ID) const override;
+ static const uint32_t *getMips16RetHelperMask();