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//===- NVPTXInstrInfo.h - NVPTX Instruction Information----------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the niversity of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the NVPTX implementation of the TargetInstrInfo class.
//
//===----------------------------------------------------------------------===//
#ifndef NVPTXINSTRUCTIONINFO_H
#define NVPTXINSTRUCTIONINFO_H
#include "NVPTX.h"
#include "NVPTXRegisterInfo.h"
#include "llvm/Target/TargetInstrInfo.h"
#define GET_INSTRINFO_HEADER
#include "NVPTXGenInstrInfo.inc"
namespace llvm {
class NVPTXInstrInfo : public NVPTXGenInstrInfo {
NVPTXTargetMachine &TM;
const NVPTXRegisterInfo RegInfo;
public:
explicit NVPTXInstrInfo(NVPTXTargetMachine &TM);
virtual const NVPTXRegisterInfo &getRegisterInfo() const { return RegInfo; }
/* The following virtual functions are used in register allocation.
* They are not implemented because the existing interface and the logic
* at the caller side do not work for the elementized vector load and store.
*
* virtual unsigned isLoadFromStackSlot(const MachineInstr *MI,
* int &FrameIndex) const;
* virtual unsigned isStoreToStackSlot(const MachineInstr *MI,
* int &FrameIndex) const;
* virtual void storeRegToStackSlot(MachineBasicBlock &MBB,
* MachineBasicBlock::iterator MBBI,
* unsigned SrcReg, bool isKill, int FrameIndex,
* const TargetRegisterClass *RC) const;
* virtual void loadRegFromStackSlot(MachineBasicBlock &MBB,
* MachineBasicBlock::iterator MBBI,
* unsigned DestReg, int FrameIndex,
* const TargetRegisterClass *RC) const;
*/
virtual void copyPhysReg(
MachineBasicBlock &MBB, MachineBasicBlock::iterator I, DebugLoc DL,
unsigned DestReg, unsigned SrcReg, bool KillSrc) const;
virtual bool isMoveInstr(const MachineInstr &MI, unsigned &SrcReg,
unsigned &DestReg) const;
bool isLoadInstr(const MachineInstr &MI, unsigned &AddrSpace) const;
bool isStoreInstr(const MachineInstr &MI, unsigned &AddrSpace) const;
bool isReadSpecialReg(MachineInstr &MI) const;
virtual bool CanTailMerge(const MachineInstr *MI) const;
// Branch analysis.
virtual bool AnalyzeBranch(
MachineBasicBlock &MBB, MachineBasicBlock *&TBB, MachineBasicBlock *&FBB,
SmallVectorImpl<MachineOperand> &Cond, bool AllowModify) const;
virtual unsigned RemoveBranch(MachineBasicBlock &MBB) const;
virtual unsigned InsertBranch(
MachineBasicBlock &MBB, MachineBasicBlock *TBB, MachineBasicBlock *FBB,
const SmallVectorImpl<MachineOperand> &Cond, DebugLoc DL) const;
unsigned getLdStCodeAddrSpace(const MachineInstr &MI) const {
return MI.getOperand(2).getImm();
}
};
} // namespace llvm
#endif
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