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b4b54153ad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146412 91177308-0d34-0410-b5e6-96231b3b80d8
167 lines
7.2 KiB
C++
167 lines
7.2 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 HexagonINSTRUCTIONINFO_H
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#define HexagonINSTRUCTIONINFO_H
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#include "llvm/Target/TargetInstrInfo.h"
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#include "llvm/Target/TargetFrameLowering.h"
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#include "HexagonRegisterInfo.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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class HexagonInstrInfo : public HexagonGenInstrInfo {
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const HexagonRegisterInfo RI;
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const HexagonSubtarget& Subtarget;
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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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virtual 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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virtual unsigned isLoadFromStackSlot(const MachineInstr *MI,
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int &FrameIndex) const;
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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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virtual unsigned isStoreToStackSlot(const MachineInstr *MI,
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int &FrameIndex) const;
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virtual 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;
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virtual unsigned RemoveBranch(MachineBasicBlock &MBB) const;
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virtual 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;
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virtual 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;
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virtual 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;
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virtual 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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virtual 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;
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virtual 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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virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
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MachineInstr* MI,
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const SmallVectorImpl<unsigned> &Ops,
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int FrameIndex) const;
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virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
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MachineInstr* MI,
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const SmallVectorImpl<unsigned> &Ops,
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MachineInstr* LoadMI) const {
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return 0;
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}
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unsigned createVR(MachineFunction* MF, MVT VT) const;
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virtual bool isPredicable(MachineInstr *MI) const;
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virtual bool
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PredicateInstruction(MachineInstr *MI,
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const SmallVectorImpl<MachineOperand> &Cond) const;
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virtual bool isProfitableToIfCvt(MachineBasicBlock &MBB, unsigned NumCyles,
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unsigned ExtraPredCycles,
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const BranchProbability &Probability) const;
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virtual 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;
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virtual bool isPredicated(const MachineInstr *MI) const;
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virtual bool DefinesPredicate(MachineInstr *MI,
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std::vector<MachineOperand> &Pred) const;
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virtual bool
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SubsumesPredicate(const SmallVectorImpl<MachineOperand> &Pred1,
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const SmallVectorImpl<MachineOperand> &Pred2) const;
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virtual bool
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ReverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const;
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virtual bool
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isProfitableToDupForIfCvt(MachineBasicBlock &MBB,unsigned NumCycles,
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const BranchProbability &Probability) const;
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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 isConditionalALU32 (const MachineInstr* MI) const;
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bool isConditionalLoad (const MachineInstr* MI) const;
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bool isDeallocRet(const MachineInstr *MI) 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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