NVPTXRegisterInfo.h revision 263508 
1//===- NVPTXRegisterInfo.h - NVPTX Register Information Impl ----*- 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// This file contains the NVPTX implementation of the TargetRegisterInfo class.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef NVPTXREGISTERINFO_H
15#define NVPTXREGISTERINFO_H
16
17#include "ManagedStringPool.h"
18#include "llvm/Target/TargetRegisterInfo.h"
19
20#define GET_REGINFO_HEADER
21#include "NVPTXGenRegisterInfo.inc"
22#include "llvm/Target/TargetRegisterInfo.h"
23#include <sstream>
24
25namespace llvm {
26
27// Forward Declarations.
28class TargetInstrInfo;
29class NVPTXSubtarget;
30
31class NVPTXRegisterInfo : public NVPTXGenRegisterInfo {
32private:
33  bool Is64Bit;
34  // Hold Strings that can be free'd all together with NVPTXRegisterInfo
35  ManagedStringPool ManagedStrPool;
36
37public:
38  NVPTXRegisterInfo(const NVPTXSubtarget &st);
39
40  //------------------------------------------------------
41  // Pure virtual functions from TargetRegisterInfo
42  //------------------------------------------------------
43
44  // NVPTX callee saved registers
45  virtual const uint16_t *
46  getCalleeSavedRegs(const MachineFunction *MF = 0) const;
47
48  // NVPTX callee saved register classes
49  virtual const TargetRegisterClass *const *
50  getCalleeSavedRegClasses(const MachineFunction *MF) const;
51
52  virtual BitVector getReservedRegs(const MachineFunction &MF) const;
53
54  virtual void eliminateFrameIndex(MachineBasicBlock::iterator MI, int SPAdj,
55                                   unsigned FIOperandNum,
56                                   RegScavenger *RS = NULL) const;
57
58  virtual int getDwarfRegNum(unsigned RegNum, bool isEH) const;
59  virtual unsigned getFrameRegister(const MachineFunction &MF) const;
60  virtual unsigned getRARegister() const;
61
62  ManagedStringPool *getStrPool() const {
63    return const_cast<ManagedStringPool *>(&ManagedStrPool);
64  }
65
66  const char *getName(unsigned RegNo) const {
67    std::stringstream O;
68    O << "reg" << RegNo;
69    return getStrPool()->getManagedString(O.str().c_str())->c_str();
70  }
71
72};
73
74std::string getNVPTXRegClassName(const TargetRegisterClass *RC);
75std::string getNVPTXRegClassStr(const TargetRegisterClass *RC);
76
77} // end namespace llvm
78
79#endif
80