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1//===-- R600RegisterInfo.h - R600 Register Info Interface ------*- C++ -*--===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8//9/// \file10/// Interface definition for R600RegisterInfo11//12//===----------------------------------------------------------------------===//13 14#ifndef LLVM_LIB_TARGET_AMDGPU_R600REGISTERINFO_H15#define LLVM_LIB_TARGET_AMDGPU_R600REGISTERINFO_H16 17#define GET_REGINFO_HEADER18#include "R600GenRegisterInfo.inc"19 20namespace llvm {21 22struct R600RegisterInfo final : public R600GenRegisterInfo {23 R600RegisterInfo() : R600GenRegisterInfo(0) {}24 25 /// \returns the sub reg enum value for the given \p Channel26 /// (e.g. getSubRegFromChannel(0) -> R600::sub0)27 static unsigned getSubRegFromChannel(unsigned Channel);28 29 BitVector getReservedRegs(const MachineFunction &MF) const override;30 const MCPhysReg *getCalleeSavedRegs(const MachineFunction *MF) const override;31 Register getFrameRegister(const MachineFunction &MF) const override;32 33 /// get the HW encoding for a register's channel.34 unsigned getHWRegChan(unsigned reg) const;35 36 unsigned getHWRegIndex(unsigned Reg) const;37 38 /// get the register class of the specified type to use in the39 /// CFGStructurizer40 const TargetRegisterClass *getCFGStructurizerRegClass(MVT VT) const;41 42 bool trackLivenessAfterRegAlloc(const MachineFunction &MF) const override {43 return false;44 }45 46 // \returns true if \p Reg can be defined in one ALU clause and used in47 // another.48 bool isPhysRegLiveAcrossClauses(Register Reg) const;49 50 bool eliminateFrameIndex(MachineBasicBlock::iterator MI, int SPAdj,51 unsigned FIOperandNum,52 RegScavenger *RS = nullptr) const override;53 54 void reserveRegisterTuples(BitVector &Reserved, unsigned Reg) const;55};56 57} // End namespace llvm58 59#endif60