SIRegisterInfo.h revision 249423 
1//===-- SIRegisterInfo.h - SI 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 SIRegisterInfo
12//
13//===----------------------------------------------------------------------===//
14
15
16#ifndef SIREGISTERINFO_H_
17#define SIREGISTERINFO_H_
18
19#include "AMDGPURegisterInfo.h"
20
21namespace llvm {
22
23class AMDGPUTargetMachine;
24class TargetInstrInfo;
25
26struct SIRegisterInfo : public AMDGPURegisterInfo {
27  AMDGPUTargetMachine &TM;
28  const TargetInstrInfo &TII;
29
30  SIRegisterInfo(AMDGPUTargetMachine &tm, const TargetInstrInfo &tii);
31
32  virtual BitVector getReservedRegs(const MachineFunction &MF) const;
33
34  virtual unsigned getRegPressureLimit(const TargetRegisterClass *RC,
35                                       MachineFunction &MF) const;
36
37  /// \param RC is an AMDIL reg class.
38  ///
39  /// \returns the SI register class that is equivalent to \p RC.
40  virtual const TargetRegisterClass *
41    getISARegClass(const TargetRegisterClass *RC) const;
42
43  /// \brief get the register class of the specified type to use in the
44  /// CFGStructurizer
45  virtual const TargetRegisterClass * getCFGStructurizerRegClass(MVT VT) const;
46};
47
48} // End namespace llvm
49
50#endif // SIREGISTERINFO_H_
51