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llvm-mirror/lib/Target/AMDGPU/R600RegisterInfo.h
Tom Stellard e236141513 AMDGPU: Refactor Subtarget classes
Summary:
This is a follow-up to r335942.
- Merge SISubtarget into AMDGPUSubtarget and rename to GCNSubtarget
- Rename AMDGPUCommonSubtarget to AMDGPUSubtarget
- Merge R600Subtarget::Generation and GCNSubtarget::Generation into
  AMDGPUSubtarget::Generation.

Reviewers: arsenm, jvesely

Subscribers: kzhuravl, wdng, nhaehnle, yaxunl, dstuttard, tpr, t-tye, javed.absar, llvm-commits

Differential Revision: https://reviews.llvm.org/D49037

llvm-svn: 336851
2018-07-11 20:59:01 +00:00

58 lines
1.8 KiB
C++

//===-- 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.
//
//===----------------------------------------------------------------------===//
//
/// \file
/// Interface definition for R600RegisterInfo
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_AMDGPU_R600REGISTERINFO_H
#define LLVM_LIB_TARGET_AMDGPU_R600REGISTERINFO_H
#define GET_REGINFO_HEADER
#include "R600GenRegisterInfo.inc"
namespace llvm {
struct R600RegisterInfo final : public R600GenRegisterInfo {
RegClassWeight RCW;
R600RegisterInfo();
BitVector getReservedRegs(const MachineFunction &MF) const override;
const MCPhysReg *getCalleeSavedRegs(const MachineFunction *MF) const override;
unsigned getFrameRegister(const MachineFunction &MF) const override;
/// get the HW encoding for a register's channel.
unsigned getHWRegChan(unsigned reg) const;
unsigned getHWRegIndex(unsigned Reg) const;
/// get the register class of the specified type to use in the
/// CFGStructurizer
const TargetRegisterClass *getCFGStructurizerRegClass(MVT VT) const;
const RegClassWeight &
getRegClassWeight(const TargetRegisterClass *RC) const override;
// \returns true if \p Reg can be defined in one ALU clause and used in
// another.
bool isPhysRegLiveAcrossClauses(unsigned Reg) const;
void eliminateFrameIndex(MachineBasicBlock::iterator MI, int SPAdj,
unsigned FIOperandNum,
RegScavenger *RS = nullptr) const override;
void reserveRegisterTuples(BitVector &Reserved, unsigned Reg) const;
};
} // End namespace llvm
#endif