//===- HexagonInstrInfo.h - Hexagon Instruction Information -----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the Hexagon implementation of the TargetInstrInfo class.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_HEXAGON_HEXAGONINSTRINFO_H
#define LLVM_LIB_TARGET_HEXAGON_HEXAGONINSTRINFO_H
#include "HexagonRegisterInfo.h"
#include "MCTargetDesc/HexagonBaseInfo.h"
#include "llvm/CodeGen/MachineBranchProbabilityInfo.h"
#include "llvm/Target/TargetFrameLowering.h"
#include "llvm/Target/TargetInstrInfo.h"
#define GET_INSTRINFO_HEADER
#include "HexagonGenInstrInfo.inc"
namespace llvm {
struct EVT;
class HexagonSubtarget;
class HexagonInstrInfo : public HexagonGenInstrInfo {
virtual void anchor();
const HexagonRegisterInfo RI;
const HexagonSubtarget &Subtarget;
typedef unsigned Opcode_t;
public:
explicit HexagonInstrInfo(HexagonSubtarget &ST);
/// getRegisterInfo - TargetInstrInfo is a superset of MRegister info. As
/// such, whenever a client has an instance of instruction info, it should
/// always be able to get register info as well (through this method).
///
const HexagonRegisterInfo &getRegisterInfo() const { return RI; }
/// isLoadFromStackSlot - If the specified machine instruction is a direct
/// load from a stack slot, return the virtual or physical register number of
/// the destination along with the FrameIndex of the loaded stack slot. If
/// not, return 0. This predicate must return 0 if the instruction has
/// any side effects other than loading from the stack slot.
unsigned isLoadFromStackSlot(const MachineInstr *MI,
int &FrameIndex) const override;
/// isStoreToStackSlot - If the specified machine instruction is a direct
/// store to a stack slot, return the virtual or physical register number of
/// the source reg along with the FrameIndex of the loaded stack slot. If
/// not, return 0. This predicate must return 0 if the instruction has
/// any side effects other than storing to the stack slot.
unsigned isStoreToStackSlot(const MachineInstr *MI,
int &FrameIndex) const override;
bool AnalyzeBranch(MachineBasicBlock &MBB,MachineBasicBlock *&TBB,
MachineBasicBlock *&FBB,
SmallVectorImpl<MachineOperand> &Cond,
bool AllowModify) const override;
unsigned RemoveBranch(MachineBasicBlock &MBB) const override;
unsigned InsertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
MachineBasicBlock *FBB,
const SmallVectorImpl<MachineOperand> &Cond,
DebugLoc DL) const override;
bool analyzeCompare(const MachineInstr *MI,
unsigned &SrcReg, unsigned &SrcReg2,
int &Mask, int &Value) const override;
void copyPhysReg(MachineBasicBlock &MBB,
MachineBasicBlock::iterator I, DebugLoc DL,
unsigned DestReg, unsigned SrcReg,
bool KillSrc) const override;
void storeRegToStackSlot(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MBBI,
unsigned SrcReg, bool isKill, int FrameIndex,
const TargetRegisterClass *RC,
const TargetRegisterInfo *TRI) const override;
void storeRegToAddr(MachineFunction &MF, unsigned SrcReg, bool isKill,
SmallVectorImpl<MachineOperand> &Addr,
const TargetRegisterClass *RC,
SmallVectorImpl<MachineInstr*> &NewMIs) const;
void loadRegFromStackSlot(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MBBI,
unsigned DestReg, int FrameIndex,
const TargetRegisterClass *RC,
const TargetRegisterInfo *TRI) const override;
void loadRegFromAddr(MachineFunction &MF, unsigned DestReg,
SmallVectorImpl<MachineOperand> &Addr,
const TargetRegisterClass *RC,
SmallVectorImpl<MachineInstr*> &NewMIs) const;
/// expandPostRAPseudo - This function is called for all pseudo instructions
/// that remain after register allocation. Many pseudo instructions are
/// created to help register allocation. This is the place to convert them
/// into real instructions. The target can edit MI in place, or it can insert
/// new instructions and erase MI. The function should return true if
/// anything was changed.
bool expandPostRAPseudo(MachineBasicBlock::iterator MI) const override;
MachineInstr *foldMemoryOperandImpl(MachineFunction &MF, MachineInstr *MI,
ArrayRef<unsigned> Ops,
int FrameIndex) const override;
MachineInstr *foldMemoryOperandImpl(MachineFunction &MF, MachineInstr *MI,
ArrayRef<unsigned> Ops,
MachineInstr *LoadMI) const override {
return nullptr;
}
unsigned createVR(MachineFunction* MF, MVT VT) const;
bool isBranch(const MachineInstr *MI) const;
bool isPredicable(MachineInstr *MI) const override;
bool PredicateInstruction(MachineInstr *MI,
const SmallVectorImpl<MachineOperand> &Cond) const override;
bool isProfitableToIfCvt(MachineBasicBlock &MBB, unsigned NumCycles,
unsigned ExtraPredCycles,
const BranchProbability &Probability) const override;
bool isProfitableToIfCvt(MachineBasicBlock &TMBB,
unsigned NumTCycles, unsigned ExtraTCycles,
MachineBasicBlock &FMBB,
unsigned NumFCycles, unsigned ExtraFCycles,
const BranchProbability &Probability) const override;
bool isPredicated(const MachineInstr *MI) const override;
bool isPredicated(unsigned Opcode) const;
bool isPredicatedTrue(const MachineInstr *MI) const;
bool isPredicatedTrue(unsigned Opcode) const;
bool isPredicatedNew(const MachineInstr *MI) const;
bool isPredicatedNew(unsigned Opcode) const;
bool DefinesPredicate(MachineInstr *MI,
std::vector<MachineOperand> &Pred) const override;
bool SubsumesPredicate(const SmallVectorImpl<MachineOperand> &Pred1,
const SmallVectorImpl<MachineOperand> &Pred2) const override;
bool
ReverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const override;
bool isProfitableToDupForIfCvt(MachineBasicBlock &MBB, unsigned NumCycles,
const BranchProbability &Probability) const override;
DFAPacketizer *
CreateTargetScheduleState(const TargetSubtargetInfo &STI) const override;
bool isSchedulingBoundary(const MachineInstr *MI,
const MachineBasicBlock *MBB,
const MachineFunction &MF) const override;
bool isValidOffset(const int Opcode, const int Offset) const;
bool isValidAutoIncImm(const EVT VT, const int Offset) const;
bool isMemOp(const MachineInstr *MI) const;
bool isSpillPredRegOp(const MachineInstr *MI) const;
bool isU6_3Immediate(const int value) const;
bool isU6_2Immediate(const int value) const;
bool isU6_1Immediate(const int value) const;
bool isU6_0Immediate(const int value) const;
bool isS4_3Immediate(const int value) const;
bool isS4_2Immediate(const int value) const;
bool isS4_1Immediate(const int value) const;
bool isS4_0Immediate(const int value) const;
bool isS12_Immediate(const int value) const;
bool isU6_Immediate(const int value) const;
bool isS8_Immediate(const int value) const;
bool isS6_Immediate(const int value) const;
bool isSaveCalleeSavedRegsCall(const MachineInstr* MI) const;
bool isConditionalTransfer(const MachineInstr* MI) const;
bool isConditionalALU32 (const MachineInstr* MI) const;
bool isConditionalLoad (const MachineInstr* MI) const;
bool isConditionalStore(const MachineInstr* MI) const;
bool isNewValueInst(const MachineInstr* MI) const;
bool isNewValue(const MachineInstr* MI) const;
bool isDotNewInst(const MachineInstr* MI) const;
int GetDotOldOp(const int opc) const;
int GetDotNewOp(const MachineInstr* MI) const;
int GetDotNewPredOp(MachineInstr *MI,
const MachineBranchProbabilityInfo
*MBPI) const;
bool mayBeNewStore(const MachineInstr* MI) const;
bool isDeallocRet(const MachineInstr *MI) const;
unsigned getInvertedPredicatedOpcode(const int Opc) const;
bool isExtendable(const MachineInstr* MI) const;
bool isExtended(const MachineInstr* MI) const;
bool isPostIncrement(const MachineInstr* MI) const;
bool isNewValueStore(const MachineInstr* MI) const;
bool isNewValueStore(unsigned Opcode) const;
bool isNewValueJump(const MachineInstr* MI) const;
bool isNewValueJumpCandidate(const MachineInstr *MI) const;
void immediateExtend(MachineInstr *MI) const;
bool isConstExtended(MachineInstr *MI) const;
int getDotNewPredJumpOp(MachineInstr *MI,
const MachineBranchProbabilityInfo *MBPI) const;
unsigned getAddrMode(const MachineInstr* MI) const;
bool isOperandExtended(const MachineInstr *MI,
unsigned short OperandNum) const;
unsigned short getCExtOpNum(const MachineInstr *MI) const;
int getMinValue(const MachineInstr *MI) const;
int getMaxValue(const MachineInstr *MI) const;
bool NonExtEquivalentExists (const MachineInstr *MI) const;
short getNonExtOpcode(const MachineInstr *MI) const;
bool PredOpcodeHasJMP_c(Opcode_t Opcode) const;
bool PredOpcodeHasNot(Opcode_t Opcode) const;
int getCondOpcode(int Opc, bool sense) const;
};
}
#endif