#ifndef R600INSTRUCTIONINFO_H_
#define R600INSTRUCTIONINFO_H_
-#include "AMDIL.h"
#include "AMDGPUInstrInfo.h"
#include "R600Defines.h"
#include "R600RegisterInfo.h"
-
#include <map>
namespace llvm {
class R600InstrInfo : public AMDGPUInstrInfo {
private:
const R600RegisterInfo RI;
+ 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;
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;
/// \returns true if this \p Opcode represents an ALU instruction.
bool isALUInstr(unsigned Opcode) const;
-
- /// \breif Vector instructions are instructions that must fill all
+ 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;
+
+ /// \brief 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;
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;
+ unsigned *PredCost = nullptr) const;
virtual int getInstrLatency(const InstrItineraryData *ItinData,
SDNode *Node) const { return 1;}
+ /// \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 *getIndirectAddrRegClass() const;
+
+ virtual MachineInstrBuilder buildIndirectWrite(MachineBasicBlock *MBB,
+ MachineBasicBlock::iterator I,
+ unsigned ValueReg, unsigned Address,
+ unsigned OffsetReg) const;
+
+ virtual MachineInstrBuilder buildIndirectRead(MachineBasicBlock *MBB,
+ MachineBasicBlock::iterator I,
+ unsigned ValueReg, unsigned Address,
+ unsigned OffsetReg) const;
+
+ unsigned getMaxAlusPerClause() const;
+
+ ///buildDefaultInstruction - This function returns a MachineInstr with
+ /// all the instruction modifiers initialized to their default values.
/// You can use this function to avoid manually specifying each instruction
/// modifier operand when building a new instruction.
///
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;
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_
projects / oota-llvm.git / blobdiff