AMDGPURegisterInfo.h revision 288943
1//===-- AMDGPURegisterInfo.h - AMDGPURegisterInfo Interface -*- C++ -*-----===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10/// \file 11/// \brief TargetRegisterInfo interface that is implemented by all hw codegen 12/// targets. 13// 14//===----------------------------------------------------------------------===// 15 16#ifndef LLVM_LIB_TARGET_R600_AMDGPUREGISTERINFO_H 17#define LLVM_LIB_TARGET_R600_AMDGPUREGISTERINFO_H 18 19#include "llvm/ADT/BitVector.h" 20#include "llvm/Target/TargetRegisterInfo.h" 21 22#define GET_REGINFO_HEADER 23#define GET_REGINFO_ENUM 24#include "AMDGPUGenRegisterInfo.inc" 25 26namespace llvm { 27 28class AMDGPUSubtarget; 29class TargetInstrInfo; 30 31struct AMDGPURegisterInfo : public AMDGPUGenRegisterInfo { 32 static const MCPhysReg CalleeSavedReg; 33 34 AMDGPURegisterInfo(); 35 36 BitVector getReservedRegs(const MachineFunction &MF) const override { 37 assert(!"Unimplemented"); return BitVector(); 38 } 39 40 virtual const TargetRegisterClass* getCFGStructurizerRegClass(MVT VT) const { 41 assert(!"Unimplemented"); return nullptr; 42 } 43 44 virtual unsigned getHWRegIndex(unsigned Reg) const { 45 assert(!"Unimplemented"); return 0; 46 } 47 48 /// \returns the sub reg enum value for the given \p Channel 49 /// (e.g. getSubRegFromChannel(0) -> AMDGPU::sub0) 50 unsigned getSubRegFromChannel(unsigned Channel) const; 51 52 const MCPhysReg* getCalleeSavedRegs(const MachineFunction *MF) const override; 53 void eliminateFrameIndex(MachineBasicBlock::iterator MI, int SPAdj, 54 unsigned FIOperandNum, 55 RegScavenger *RS) const override; 56 unsigned getFrameRegister(const MachineFunction &MF) const override; 57 58 unsigned getIndirectSubReg(unsigned IndirectIndex) const; 59 60}; 61 62} // End namespace llvm 63 64#endif 65