diff options
Diffstat (limited to 'lib/Target/Mips/MipsInstrInfo.h')
| -rw-r--r-- | lib/Target/Mips/MipsInstrInfo.h | 105 |
1 files changed, 52 insertions, 53 deletions
diff --git a/lib/Target/Mips/MipsInstrInfo.h b/lib/Target/Mips/MipsInstrInfo.h index 4be727dd8994..7d5625906248 100644 --- a/lib/Target/Mips/MipsInstrInfo.h +++ b/lib/Target/Mips/MipsInstrInfo.h @@ -15,6 +15,7 @@ #define MIPSINSTRUCTIONINFO_H #include "Mips.h" +#include "MipsAnalyzeImmediate.h" #include "MipsRegisterInfo.h" #include "llvm/Support/ErrorHandling.h" #include "llvm/Target/TargetInstrInfo.h" @@ -24,87 +25,85 @@ namespace llvm { -namespace Mips { - /// GetOppositeBranchOpc - Return the inverse of the specified - /// opcode, e.g. turning BEQ to BNE. - unsigned GetOppositeBranchOpc(unsigned Opc); -} - class MipsInstrInfo : public MipsGenInstrInfo { +protected: MipsTargetMachine &TM; - bool IsN64; - const MipsRegisterInfo RI; unsigned UncondBrOpc; + public: - explicit MipsInstrInfo(MipsTargetMachine &TM); + explicit MipsInstrInfo(MipsTargetMachine &TM, unsigned UncondBrOpc); - /// 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). - /// - virtual const MipsRegisterInfo &getRegisterInfo() const; - - /// 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. - virtual unsigned isLoadFromStackSlot(const MachineInstr *MI, - int &FrameIndex) const; - - /// 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. - virtual unsigned isStoreToStackSlot(const MachineInstr *MI, - int &FrameIndex) const; + static const MipsInstrInfo *create(MipsTargetMachine &TM); /// Branch Analysis virtual bool AnalyzeBranch(MachineBasicBlock &MBB, MachineBasicBlock *&TBB, MachineBasicBlock *&FBB, SmallVectorImpl<MachineOperand> &Cond, bool AllowModify) const; - virtual unsigned RemoveBranch(MachineBasicBlock &MBB) const; -private: - void BuildCondBr(MachineBasicBlock &MBB, MachineBasicBlock *TBB, DebugLoc DL, - const SmallVectorImpl<MachineOperand>& Cond) const; + virtual unsigned RemoveBranch(MachineBasicBlock &MBB) const; -public: virtual unsigned InsertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB, MachineBasicBlock *FBB, const SmallVectorImpl<MachineOperand> &Cond, DebugLoc DL) const; - virtual void copyPhysReg(MachineBasicBlock &MBB, - MachineBasicBlock::iterator MI, DebugLoc DL, - unsigned DestReg, unsigned SrcReg, - bool KillSrc) const; - virtual void storeRegToStackSlot(MachineBasicBlock &MBB, - MachineBasicBlock::iterator MBBI, - unsigned SrcReg, bool isKill, int FrameIndex, - const TargetRegisterClass *RC, - const TargetRegisterInfo *TRI) const; - - virtual void loadRegFromStackSlot(MachineBasicBlock &MBB, - MachineBasicBlock::iterator MBBI, - unsigned DestReg, int FrameIndex, - const TargetRegisterClass *RC, - const TargetRegisterInfo *TRI) const; + + virtual + bool ReverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const; virtual MachineInstr* emitFrameIndexDebugValue(MachineFunction &MF, int FrameIx, uint64_t Offset, const MDNode *MDPtr, DebugLoc DL) const; - virtual - bool ReverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const; - /// Insert nop instruction when hazard condition is found virtual void insertNoop(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI) const; + + /// 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). + /// + virtual const MipsRegisterInfo &getRegisterInfo() const = 0; + + virtual unsigned GetOppositeBranchOpc(unsigned Opc) const = 0; + + /// Return the number of bytes of code the specified instruction may be. + unsigned GetInstSizeInBytes(const MachineInstr *MI) const; + +protected: + bool isZeroImm(const MachineOperand &op) const; + + MachineMemOperand *GetMemOperand(MachineBasicBlock &MBB, int FI, + unsigned Flag) const; + +private: + virtual unsigned GetAnalyzableBrOpc(unsigned Opc) const = 0; + + void AnalyzeCondBr(const MachineInstr *Inst, unsigned Opc, + MachineBasicBlock *&BB, + SmallVectorImpl<MachineOperand> &Cond) const; + + void BuildCondBr(MachineBasicBlock &MBB, MachineBasicBlock *TBB, DebugLoc DL, + const SmallVectorImpl<MachineOperand>& Cond) const; }; +namespace Mips { + /// Emit a series of instructions to load an immediate. All instructions + /// except for the last one are emitted. The function returns the number of + /// MachineInstrs generated. The opcode-immediate pair of the last + /// instruction is returned in LastInst, if it is not 0. + unsigned + loadImmediate(int64_t Imm, bool IsN64, const TargetInstrInfo &TII, + MachineBasicBlock& MBB, MachineBasicBlock::iterator II, + DebugLoc DL, bool LastInstrIsADDiu, + MipsAnalyzeImmediate::Inst *LastInst); +} + +/// Create MipsInstrInfo objects. +const MipsInstrInfo *createMips16InstrInfo(MipsTargetMachine &TM); +const MipsInstrInfo *createMipsSEInstrInfo(MipsTargetMachine &TM); + } #endif |