diff options
Diffstat (limited to 'contrib/llvm/lib/Target/R600/R600InstrInfo.h')
| -rw-r--r-- | contrib/llvm/lib/Target/R600/R600InstrInfo.h | 121 |
1 files changed, 99 insertions, 22 deletions
diff --git a/contrib/llvm/lib/Target/R600/R600InstrInfo.h b/contrib/llvm/lib/Target/R600/R600InstrInfo.h index babe4b8..13d9810 100644 --- a/contrib/llvm/lib/Target/R600/R600InstrInfo.h +++ b/contrib/llvm/lib/Target/R600/R600InstrInfo.h @@ -16,7 +16,6 @@ #define R600INSTRUCTIONINFO_H_ #include "AMDGPUInstrInfo.h" -#include "AMDIL.h" #include "R600Defines.h" #include "R600RegisterInfo.h" #include <map> @@ -36,8 +35,19 @@ namespace llvm { const AMDGPUSubtarget &ST; int getBranchInstr(const MachineOperand &op) const; + std::vector<std::pair<int, unsigned> > + ExtractSrcs(MachineInstr *MI, const DenseMap<unsigned, unsigned> &PV, unsigned &ConstCount) const; public: + enum BankSwizzle { + ALU_VEC_012_SCL_210 = 0, + ALU_VEC_021_SCL_122, + ALU_VEC_120_SCL_212, + ALU_VEC_102_SCL_221, + ALU_VEC_201, + ALU_VEC_210 + }; + explicit R600InstrInfo(AMDGPUTargetMachine &tm); const R600RegisterInfo &getRegisterInfo() const; @@ -45,6 +55,8 @@ namespace llvm { MachineBasicBlock::iterator MI, DebugLoc DL, unsigned DestReg, unsigned SrcReg, bool KillSrc) const; + bool isLegalToSplitMBBAt(MachineBasicBlock &MBB, + MachineBasicBlock::iterator MBBI) const; bool isTrig(const MachineInstr &MI) const; bool isPlaceHolderOpcode(unsigned opcode) const; @@ -53,25 +65,83 @@ namespace llvm { /// \returns true if this \p Opcode represents an ALU instruction. bool isALUInstr(unsigned Opcode) const; + bool hasInstrModifiers(unsigned Opcode) const; + bool isLDSInstr(unsigned Opcode) const; + bool isLDSNoRetInstr(unsigned Opcode) const; + bool isLDSRetInstr(unsigned Opcode) const; + + /// \returns true if this \p Opcode represents an ALU instruction or an + /// instruction that will be lowered in ExpandSpecialInstrs Pass. + bool canBeConsideredALU(const MachineInstr *MI) const; bool isTransOnly(unsigned Opcode) const; bool isTransOnly(const MachineInstr *MI) const; + bool isVectorOnly(unsigned Opcode) const; + bool isVectorOnly(const MachineInstr *MI) const; + bool isExport(unsigned Opcode) const; bool usesVertexCache(unsigned Opcode) const; bool usesVertexCache(const MachineInstr *MI) const; bool usesTextureCache(unsigned Opcode) const; bool usesTextureCache(const MachineInstr *MI) const; + bool mustBeLastInClause(unsigned Opcode) const; + bool usesAddressRegister(MachineInstr *MI) const; + bool definesAddressRegister(MachineInstr *MI) const; + bool readsLDSSrcReg(const MachineInstr *MI) const; + + /// \returns The operand index for the given source number. Legal values + /// for SrcNum are 0, 1, and 2. + int getSrcIdx(unsigned Opcode, unsigned SrcNum) const; + /// \returns The operand Index for the Sel operand given an index to one + /// of the instruction's src operands. + int getSelIdx(unsigned Opcode, unsigned SrcIdx) const; + + /// \returns a pair for each src of an ALU instructions. + /// The first member of a pair is the register id. + /// If register is ALU_CONST, second member is SEL. + /// If register is ALU_LITERAL, second member is IMM. + /// Otherwise, second member value is undefined. + SmallVector<std::pair<MachineOperand *, int64_t>, 3> + getSrcs(MachineInstr *MI) const; + + unsigned isLegalUpTo( + const std::vector<std::vector<std::pair<int, unsigned> > > &IGSrcs, + const std::vector<R600InstrInfo::BankSwizzle> &Swz, + const std::vector<std::pair<int, unsigned> > &TransSrcs, + R600InstrInfo::BankSwizzle TransSwz) const; + + bool FindSwizzleForVectorSlot( + const std::vector<std::vector<std::pair<int, unsigned> > > &IGSrcs, + std::vector<R600InstrInfo::BankSwizzle> &SwzCandidate, + const std::vector<std::pair<int, unsigned> > &TransSrcs, + R600InstrInfo::BankSwizzle TransSwz) const; + + /// Given the order VEC_012 < VEC_021 < VEC_120 < VEC_102 < VEC_201 < VEC_210 + /// returns true and the first (in lexical order) BankSwizzle affectation + /// starting from the one already provided in the Instruction Group MIs that + /// fits Read Port limitations in BS if available. Otherwise returns false + /// and undefined content in BS. + /// isLastAluTrans should be set if the last Alu of MIs will be executed on + /// Trans ALU. In this case, ValidTSwizzle returns the BankSwizzle value to + /// apply to the last instruction. + /// PV holds GPR to PV registers in the Instruction Group MIs. + bool fitsReadPortLimitations(const std::vector<MachineInstr *> &MIs, + const DenseMap<unsigned, unsigned> &PV, + std::vector<BankSwizzle> &BS, + bool isLastAluTrans) const; + + /// An instruction group can only access 2 channel pair (either [XY] or [ZW]) + /// from KCache bank on R700+. This function check if MI set in input meet + /// this limitations + bool fitsConstReadLimitations(const std::vector<MachineInstr *> &) const; + /// Same but using const index set instead of MI set. bool fitsConstReadLimitations(const std::vector<unsigned>&) const; - bool canBundle(const std::vector<MachineInstr *> &) const; /// \breif Vector instructions are instructions that must fill all /// instruction slots within an instruction group. bool isVector(const MachineInstr &MI) const; - virtual MachineInstr * getMovImmInstr(MachineFunction *MF, unsigned DstReg, - int64_t Imm) const; - virtual unsigned getIEQOpcode() const; virtual bool isMov(unsigned Opcode) const; @@ -118,6 +188,8 @@ namespace llvm { bool PredicateInstruction(MachineInstr *MI, const SmallVectorImpl<MachineOperand> &Pred) const; + unsigned int getPredicationCost(const MachineInstr *) const; + unsigned int getInstrLatency(const InstrItineraryData *ItinData, const MachineInstr *MI, unsigned *PredCost = 0) const; @@ -125,22 +197,14 @@ namespace llvm { virtual int getInstrLatency(const InstrItineraryData *ItinData, SDNode *Node) const { return 1;} - /// \returns a list of all the registers that may be accesed using indirect - /// addressing. - std::vector<unsigned> getIndirectReservedRegs(const MachineFunction &MF) const; - - virtual int getIndirectIndexBegin(const MachineFunction &MF) const; - - virtual int getIndirectIndexEnd(const MachineFunction &MF) const; - + /// \brief Reserve the registers that may be accesed using indirect addressing. + void reserveIndirectRegisters(BitVector &Reserved, + const MachineFunction &MF) const; virtual unsigned calculateIndirectAddress(unsigned RegIndex, unsigned Channel) const; - virtual const TargetRegisterClass *getIndirectAddrStoreRegClass( - unsigned SourceReg) const; - - virtual const TargetRegisterClass *getIndirectAddrLoadRegClass() const; + virtual const TargetRegisterClass *getIndirectAddrRegClass() const; virtual MachineInstrBuilder buildIndirectWrite(MachineBasicBlock *MBB, MachineBasicBlock::iterator I, @@ -152,8 +216,6 @@ namespace llvm { unsigned ValueReg, unsigned Address, unsigned OffsetReg) const; - virtual const TargetRegisterClass *getSuperIndirectRegClass() const; - unsigned getMaxAlusPerClause() const; ///buildDefaultInstruction - This function returns a MachineInstr with @@ -170,23 +232,32 @@ namespace llvm { unsigned Src0Reg, unsigned Src1Reg = 0) const; + MachineInstr *buildSlotOfVectorInstruction(MachineBasicBlock &MBB, + MachineInstr *MI, + unsigned Slot, + unsigned DstReg) const; + MachineInstr *buildMovImm(MachineBasicBlock &BB, MachineBasicBlock::iterator I, unsigned DstReg, uint64_t Imm) const; + MachineInstr *buildMovInstr(MachineBasicBlock *MBB, + MachineBasicBlock::iterator I, + unsigned DstReg, unsigned SrcReg) const; + /// \brief Get the index of Op in the MachineInstr. /// /// \returns -1 if the Instruction does not contain the specified \p Op. - int getOperandIdx(const MachineInstr &MI, R600Operands::Ops Op) const; + int getOperandIdx(const MachineInstr &MI, unsigned Op) const; /// \brief Get the index of \p Op for the given Opcode. /// /// \returns -1 if the Instruction does not contain the specified \p Op. - int getOperandIdx(unsigned Opcode, R600Operands::Ops Op) const; + int getOperandIdx(unsigned Opcode, unsigned Op) const; /// \brief Helper function for setting instruction flag values. - void setImmOperand(MachineInstr *MI, R600Operands::Ops Op, int64_t Imm) const; + void setImmOperand(MachineInstr *MI, unsigned Op, int64_t Imm) const; /// \returns true if this instruction has an operand for storing target flags. bool hasFlagOperand(const MachineInstr &MI) const; @@ -208,6 +279,12 @@ namespace llvm { void clearFlag(MachineInstr *MI, unsigned Operand, unsigned Flag) const; }; +namespace AMDGPU { + +int getLDSNoRetOp(uint16_t Opcode); + +} //End namespace AMDGPU + } // End llvm namespace #endif // R600INSTRINFO_H_ |
