/// \brief Return the 'base' register class for this register.
/// e.g. SGPR0 => SReg_32, VGPR => VReg_32 SGPR0_SGPR1 -> SReg_32, etc.
const TargetRegisterClass *getPhysRegClass(unsigned Reg) const;
/// \brief Return the 'base' register class for this register.
/// e.g. SGPR0 => SReg_32, VGPR => VReg_32 SGPR0_SGPR1 -> SReg_32, etc.
const TargetRegisterClass *getPhysRegClass(unsigned Reg) const;