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