AMDGPURegisterInfo.h revision 249259 
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 AMDGPUREGISTERINFO_H
17#define 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 AMDGPUTargetMachine;
29class TargetInstrInfo;
30
31struct AMDGPURegisterInfo : public AMDGPUGenRegisterInfo {
32  TargetMachine &TM;
33  const TargetInstrInfo &TII;
34  static const uint16_t CalleeSavedReg;
35
36  AMDGPURegisterInfo(TargetMachine &tm, const TargetInstrInfo &tii);
37
38  virtual BitVector getReservedRegs(const MachineFunction &MF) const {
39    assert(!"Unimplemented");  return BitVector();
40  }
41
42  /// \param RC is an AMDIL reg class.
43  ///
44  /// \returns The ISA reg class that is equivalent to \p RC.
45  virtual const TargetRegisterClass * getISARegClass(
46                                         const TargetRegisterClass * RC) const {
47    assert(!"Unimplemented"); return NULL;
48  }
49
50  virtual const TargetRegisterClass* getCFGStructurizerRegClass(MVT VT) const {
51    assert(!"Unimplemented"); return NULL;
52  }
53
54  const uint16_t* getCalleeSavedRegs(const MachineFunction *MF) const;
55  void eliminateFrameIndex(MachineBasicBlock::iterator MI, int SPAdj,
56                           unsigned FIOperandNum,
57                           RegScavenger *RS) const;
58  unsigned getFrameRegister(const MachineFunction &MF) const;
59
60  unsigned getIndirectSubReg(unsigned IndirectIndex) const;
61
62};
63
64} // End namespace llvm
65
66#endif // AMDIDSAREGISTERINFO_H
67