1 //===- NVPTXRegisterInfo.h - NVPTX Register Information Impl ----*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains the NVPTX implementation of the TargetRegisterInfo class.
12 //===----------------------------------------------------------------------===//
14 #ifndef NVPTXREGISTERINFO_H
15 #define NVPTXREGISTERINFO_H
17 #include "ManagedStringPool.h"
18 #include "llvm/Target/TargetRegisterInfo.h"
21 #define GET_REGINFO_HEADER
22 #include "NVPTXGenRegisterInfo.inc"
23 #include "llvm/Target/TargetRegisterInfo.h"
28 // Forward Declarations.
29 class TargetInstrInfo;
32 class NVPTXRegisterInfo : public NVPTXGenRegisterInfo {
34 const TargetInstrInfo &TII;
35 const NVPTXSubtarget &ST;
37 // Hold Strings that can be free'd all together with NVPTXRegisterInfo
38 ManagedStringPool ManagedStrPool;
41 NVPTXRegisterInfo(const TargetInstrInfo &tii,
42 const NVPTXSubtarget &st);
45 //------------------------------------------------------
46 // Pure virtual functions from TargetRegisterInfo
47 //------------------------------------------------------
49 // NVPTX callee saved registers
50 virtual const uint16_t*
51 getCalleeSavedRegs(const MachineFunction *MF = 0) const;
53 // NVPTX callee saved register classes
54 virtual const TargetRegisterClass* const *
55 getCalleeSavedRegClasses(const MachineFunction *MF) const;
57 virtual BitVector getReservedRegs(const MachineFunction &MF) const;
59 virtual void eliminateFrameIndex(MachineBasicBlock::iterator MI,
61 RegScavenger *RS=NULL) const;
63 void eliminateCallFramePseudoInstr(MachineFunction &MF,
64 MachineBasicBlock &MBB,
65 MachineBasicBlock::iterator I) const;
67 virtual int getDwarfRegNum(unsigned RegNum, bool isEH) const;
68 virtual unsigned getFrameRegister(const MachineFunction &MF) const;
69 virtual unsigned getRARegister() const;
71 ManagedStringPool *getStrPool() const {
72 return const_cast<ManagedStringPool *>(&ManagedStrPool);
75 const char *getName(unsigned RegNo) const {
78 return getStrPool()->getManagedString(O.str().c_str())->c_str();
84 std::string getNVPTXRegClassName (const TargetRegisterClass *RC);
85 std::string getNVPTXRegClassStr (const TargetRegisterClass *RC);
86 bool isNVPTXVectorRegClass (const TargetRegisterClass *RC);
87 std::string getNVPTXElemClassName (const TargetRegisterClass *RC);
88 int getNVPTXVectorSize (const TargetRegisterClass *RC);
89 const TargetRegisterClass *getNVPTXElemClass(const TargetRegisterClass *RC);
91 } // end namespace llvm