| //===-- SIRegisterInfo.h - SI Register Info Interface ----------*- C++ -*--===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| /// \file |
| /// \brief Interface definition for SIRegisterInfo |
| // |
| //===----------------------------------------------------------------------===// |
| |
| |
| #ifndef SIREGISTERINFO_H_ |
| #define SIREGISTERINFO_H_ |
| |
| #include "AMDGPURegisterInfo.h" |
| |
| namespace llvm { |
| |
| class AMDGPUTargetMachine; |
| |
| struct SIRegisterInfo : public AMDGPURegisterInfo { |
| AMDGPUTargetMachine &TM; |
| |
| SIRegisterInfo(AMDGPUTargetMachine &tm); |
| |
| virtual BitVector getReservedRegs(const MachineFunction &MF) const; |
| |
| virtual unsigned getRegPressureLimit(const TargetRegisterClass *RC, |
| MachineFunction &MF) const; |
| |
| /// \param RC is an AMDIL reg class. |
| /// |
| /// \returns the SI register class that is equivalent to \p RC. |
| virtual const TargetRegisterClass * |
| getISARegClass(const TargetRegisterClass *RC) const; |
| |
| /// \brief get the register class of the specified type to use in the |
| /// CFGStructurizer |
| virtual const TargetRegisterClass * getCFGStructurizerRegClass(MVT VT) const; |
| |
| virtual unsigned getHWRegIndex(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; |
| |
| /// \returns true if this class contains only SGPR registers |
| bool isSGPRClass(const TargetRegisterClass *RC) const; |
| |
| /// \returns true if this class contains VGPR registers. |
| bool hasVGPRs(const TargetRegisterClass *RC) const; |
| |
| /// \returns A VGPR reg class with the same width as \p SRC |
| const TargetRegisterClass *getEquivalentVGPRClass( |
| const TargetRegisterClass *SRC) const; |
| |
| /// \returns The register class that is used for a sub-register of \p RC for |
| /// the given \p SubIdx. If \p SubIdx equals NoSubRegister, \p RC will |
| /// be returned. |
| const TargetRegisterClass *getSubRegClass(const TargetRegisterClass *RC, |
| unsigned SubIdx) const; |
| }; |
| |
| } // End namespace llvm |
| |
| #endif // SIREGISTERINFO_H_ |