| //===-- R600RegisterInfo.h - R600 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. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // Interface definition for R600RegisterInfo |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef R600REGISTERINFO_H_ |
| #define R600REGISTERINFO_H_ |
| |
| #include "AMDGPUTargetMachine.h" |
| #include "AMDGPURegisterInfo.h" |
| |
| namespace llvm { |
| |
| class R600TargetMachine; |
| class TargetInstrInfo; |
| |
| struct R600RegisterInfo : public AMDGPURegisterInfo |
| { |
| AMDGPUTargetMachine &TM; |
| const TargetInstrInfo &TII; |
| |
| R600RegisterInfo(AMDGPUTargetMachine &tm, const TargetInstrInfo &tii); |
| |
| virtual BitVector getReservedRegs(const MachineFunction &MF) const; |
| |
| /// getISARegClass - rc is an AMDIL reg class. This function returns the |
| /// R600 reg class that is equivalent to the given AMDIL reg class. |
| virtual const TargetRegisterClass * getISARegClass( |
| const TargetRegisterClass * rc) const; |
| |
| /// getHWRegIndex - get the HW encoding for a register. |
| unsigned getHWRegIndex(unsigned reg) const; |
| |
| /// getHWRegChan - get the HW encoding for a register's channel. |
| unsigned getHWRegChan(unsigned reg) const; |
| |
| /// getCFGStructurizerRegClass - get the register class of the specified |
| /// type to use in the CFGStructurizer |
| virtual const TargetRegisterClass * getCFGStructurizerRegClass(MVT VT) const; |
| |
| /// getSubRegFromChannel - Return the sub reg enum value for the given |
| /// Channel (e.g. getSubRegFromChannel(0) -> AMDGPU::sel_x) |
| unsigned getSubRegFromChannel(unsigned Channel) const; |
| |
| private: |
| /// getHWRegIndexGen - Generated function returns a register's encoding |
| unsigned getHWRegIndexGen(unsigned reg) const; |
| /// getHWRegChanGen - Generated function returns a register's channel |
| /// encoding. |
| unsigned getHWRegChanGen(unsigned reg) const; |
| }; |
| |
| } // End namespace llvm |
| |
| #endif // AMDIDSAREGISTERINFO_H_ |