1//===-- R600RegisterInfo.h - R600 Register Info 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 Interface definition for R600RegisterInfo
12//
13//===----------------------------------------------------------------------===//
14
15#ifndef R600REGISTERINFO_H_
16#define R600REGISTERINFO_H_
17
18#include "AMDGPURegisterInfo.h"
19
20namespace llvm {
21
22class AMDGPUSubtarget;
23
24struct R600RegisterInfo : public AMDGPURegisterInfo {
25  RegClassWeight RCW;
26
27  R600RegisterInfo(const AMDGPUSubtarget &st);
28
29  BitVector getReservedRegs(const MachineFunction &MF) const override;
30
31  /// \brief get the HW encoding for a register's channel.
32  unsigned getHWRegChan(unsigned reg) const;
33
34  unsigned getHWRegIndex(unsigned Reg) const override;
35
36  /// \brief get the register class of the specified type to use in the
37  /// CFGStructurizer
38  const TargetRegisterClass * getCFGStructurizerRegClass(MVT VT) const override;
39
40  const RegClassWeight &
41    getRegClassWeight(const TargetRegisterClass *RC) const override;
42
43  // \returns true if \p Reg can be defined in one ALU caluse and used in another.
44  bool isPhysRegLiveAcrossClauses(unsigned Reg) const;
45};
46
47} // End namespace llvm
48
49#endif // AMDIDSAREGISTERINFO_H_
50