#include "Target/AMDGPU/R600InstrInfo.h"

Inheritance diagram for llvm::R600InstrInfo:

Public Types
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 }

Public Member Functions
	R600InstrInfo (const R600Subtarget &)
const R600RegisterInfo &	getRegisterInfo () const
void	copyPhysReg (MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, const DebugLoc &DL, Register DestReg, Register SrcReg, bool KillSrc, bool RenamableDest=false, bool RenamableSrc=false) const override
bool	isLegalToSplitMBBAt (MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI) const override
bool	isReductionOp (unsigned opcode) const
bool	isCubeOp (unsigned opcode) const
bool	isALUInstr (unsigned Opcode) const
bool	hasInstrModifiers (unsigned Opcode) const
bool	isLDSInstr (unsigned Opcode) const
bool	isLDSRetInstr (unsigned Opcode) const
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
int	getSelIdx (unsigned Opcode, unsigned SrcIdx) const
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
	returns how many MIs (whose inputs are represented by IGSrcs) can be packed in the same Instruction Group while meeting read port limitations given a Swz swizzle sequence.
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
	Enumerate all possible Swizzle sequence to find one that can meet all read port requirements.
bool	fitsReadPortLimitations (const std::vector< MachineInstr * > &MIs, const DenseMap< unsigned, unsigned > &PV, std::vector< BankSwizzle > &BS, bool isLastAluTrans) 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.
bool	fitsConstReadLimitations (const std::vector< MachineInstr * > &) const
	An instruction group can only access 2 channel pair (either [XY] or [ZW]) from KCache bank on R700+.
bool	fitsConstReadLimitations (const std::vector< unsigned > &) const
	Same but using const index set instead of MI set.
bool	isVector (const MachineInstr &MI) const
	Vector instructions are instructions that must fill all instruction slots within an instruction group.
bool	isMov (unsigned Opcode) const
DFAPacketizer *	CreateTargetScheduleState (const TargetSubtargetInfo &) const override
bool	reverseBranchCondition (SmallVectorImpl< MachineOperand > &Cond) const override
bool	analyzeBranch (MachineBasicBlock &MBB, MachineBasicBlock &TBB, MachineBasicBlock &FBB, SmallVectorImpl< MachineOperand > &Cond, bool AllowModify) const override
unsigned	insertBranch (MachineBasicBlock &MBB, MachineBasicBlock TBB, MachineBasicBlock FBB, ArrayRef< MachineOperand > Cond, const DebugLoc &DL, int *BytesAdded=nullptr) const override
unsigned	removeBranch (MachineBasicBlock &MBB, int *BytesRemoved=nullptr) const override
bool	isPredicated (const MachineInstr &MI) const override
bool	isPredicable (const MachineInstr &MI) const override
bool	isProfitableToDupForIfCvt (MachineBasicBlock &MBB, unsigned NumCycles, BranchProbability Probability) const override
bool	isProfitableToIfCvt (MachineBasicBlock &MBB, unsigned NumCycles, unsigned ExtraPredCycles, BranchProbability Probability) const override
bool	isProfitableToIfCvt (MachineBasicBlock &TMBB, unsigned NumTCycles, unsigned ExtraTCycles, MachineBasicBlock &FMBB, unsigned NumFCycles, unsigned ExtraFCycles, BranchProbability Probability) const override
bool	ClobbersPredicate (MachineInstr &MI, std::vector< MachineOperand > &Pred, bool SkipDead) const override
bool	isProfitableToUnpredicate (MachineBasicBlock &TMBB, MachineBasicBlock &FMBB) const override
bool	PredicateInstruction (MachineInstr &MI, ArrayRef< MachineOperand > Pred) const override
unsigned int	getPredicationCost (const MachineInstr &) const override
unsigned int	getInstrLatency (const InstrItineraryData ItinData, const MachineInstr &MI, unsigned PredCost=nullptr) const override
bool	expandPostRAPseudo (MachineInstr &MI) const override
void	reserveIndirectRegisters (BitVector &Reserved, const MachineFunction &MF, const R600RegisterInfo &TRI) const
	Reserve the registers that may be accessed using indirect addressing.
unsigned	calculateIndirectAddress (unsigned RegIndex, unsigned Channel) const
	Calculate the "Indirect Address" for the given `RegIndex` and `Channel`.
const TargetRegisterClass *	getIndirectAddrRegClass () const
int	getIndirectIndexBegin (const MachineFunction &MF) const
int	getIndirectIndexEnd (const MachineFunction &MF) const
MachineInstrBuilder	buildIndirectWrite (MachineBasicBlock *MBB, MachineBasicBlock::iterator I, unsigned ValueReg, unsigned Address, unsigned OffsetReg) const
	Build instruction(s) for an indirect register write.
MachineInstrBuilder	buildIndirectRead (MachineBasicBlock *MBB, MachineBasicBlock::iterator I, unsigned ValueReg, unsigned Address, unsigned OffsetReg) const
	Build instruction(s) for an indirect register read.
unsigned	getMaxAlusPerClause () const
MachineInstrBuilder	buildDefaultInstruction (MachineBasicBlock &MBB, MachineBasicBlock::iterator I, unsigned Opcode, unsigned DstReg, unsigned Src0Reg, unsigned Src1Reg=0) const
	buildDefaultInstruction - This function returns a MachineInstr with all the instruction modifiers initialized to their default values.
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
int	getOperandIdx (const MachineInstr &MI, R600::OpName Op) const
	Get the index of Op in the MachineInstr.
int	getOperandIdx (unsigned Opcode, R600::OpName Op) const
	Get the index of `Op` for the given Opcode.
void	setImmOperand (MachineInstr &MI, R600::OpName Op, int64_t Imm) const
	Helper function for setting instruction flag values.
void	addFlag (MachineInstr &MI, unsigned SrcIdx, unsigned Flag) const
	Add one of the MO_FLAG* flags to the operand at `SrcIdx`.
bool	isFlagSet (const MachineInstr &MI, unsigned SrcIdx, unsigned Flag) const
	Determine if the specified `Flag` is set on operand at `SrcIdx`.
MachineOperand &	getFlagOp (MachineInstr &MI, unsigned SrcIdx=0, unsigned Flag=0) const
void	clearFlag (MachineInstr &MI, unsigned SrcIdx, unsigned Flag) const
	Clear the specified flag on the instruction.
bool	isRegisterStore (const MachineInstr &MI) const
bool	isRegisterLoad (const MachineInstr &MI) const

Detailed Description

Definition at line 39 of file R600InstrInfo.h.

Member Enumeration Documentation

◆ BankSwizzle

enum llvm::R600InstrInfo::BankSwizzle

Enumerator
ALU_VEC_012_SCL_210
ALU_VEC_021_SCL_122
ALU_VEC_120_SCL_212
ALU_VEC_102_SCL_221
ALU_VEC_201
ALU_VEC_210

Definition at line 60 of file R600InstrInfo.h.

Constructor & Destructor Documentation

◆ R600InstrInfo()

R600InstrInfo::R600InstrInfo ( const R600Subtarget & ST )

explicit

Definition at line 30 of file R600InstrInfo.cpp.

Member Function Documentation

◆ addFlag()

void R600InstrInfo::addFlag	(	MachineInstr &	MI,
		unsigned	SrcIdx,
		unsigned	Flag ) const

Add one of the MO_FLAG* flags to the operand at SrcIdx.

Definition at line 1423 of file R600InstrInfo.cpp.

References clearFlag(), llvm::get(), getFlagOp(), llvm::MachineOperand::getImm(), HAS_NATIVE_OPERANDS, MI, MO_FLAG_LAST, MO_FLAG_MASK, MO_FLAG_NOT_LAST, NUM_MO_FLAGS, and llvm::MachineOperand::setImm().

Referenced by insertBranch().

◆ analyzeBranch()

bool R600InstrInfo::analyzeBranch	(	MachineBasicBlock &	MBB,
		MachineBasicBlock *&	TBB,
		MachineBasicBlock *&	FBB,
		SmallVectorImpl< MachineOperand > &	Cond,
		bool	AllowModify ) const

override

Definition at line 636 of file R600InstrInfo.cpp.

References Cond, llvm::MachineOperand::CreateReg(), llvm::MachineOperand::getMBB(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), I, isBranch(), isJump(), isPredicateSetter(), MBB, and TBB.

◆ buildDefaultInstruction()

MachineInstrBuilder R600InstrInfo::buildDefaultInstruction	(	MachineBasicBlock &	MBB,
		MachineBasicBlock::iterator	I,
		unsigned	Opcode,
		unsigned	DstReg,
		unsigned	Src0Reg,
		unsigned	Src1Reg = 0 ) 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.

Returns: a MachineInstr with all the instruction modifiers initialized to their default values.

Definition at line 1199 of file R600InstrInfo.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), llvm::BuildMI(), llvm::get(), I, and MBB.

Referenced by buildMovImm(), buildMovInstr(), buildSlotOfVectorInstruction(), and copyPhysReg().

◆ buildIndirectRead()

MachineInstrBuilder R600InstrInfo::buildIndirectRead	(	MachineBasicBlock *	MBB,
		MachineBasicBlock::iterator	I,
		unsigned	ValueReg,
		unsigned	Address,
		unsigned	OffsetReg ) const

Build instruction(s) for an indirect register read.

Returns: The instruction that performs the indirect register read

Definition at line 1107 of file R600InstrInfo.cpp.

References llvm::Address, I, and MBB.

◆ buildIndirectWrite()

MachineInstrBuilder R600InstrInfo::buildIndirectWrite	(	MachineBasicBlock *	MBB,
		MachineBasicBlock::iterator	I,
		unsigned	ValueReg,
		unsigned	Address,
		unsigned	OffsetReg ) const

Build instruction(s) for an indirect register write.

Returns: The instruction that performs the indirect register write

Definition at line 1075 of file R600InstrInfo.cpp.

References llvm::Address, I, and MBB.

◆ buildMovImm()

MachineInstr * R600InstrInfo::buildMovImm	(	MachineBasicBlock &	BB,
		MachineBasicBlock::iterator	I,
		unsigned	DstReg,
		uint64_t	Imm ) const

Definition at line 1321 of file R600InstrInfo.cpp.

References buildDefaultInstruction(), I, Imm, and setImmOperand().

◆ buildMovInstr()

MachineInstr * R600InstrInfo::buildMovInstr	(	MachineBasicBlock *	MBB,
		MachineBasicBlock::iterator	I,
		unsigned	DstReg,
		unsigned	SrcReg ) const

Definition at line 1331 of file R600InstrInfo.cpp.

References buildDefaultInstruction(), I, and MBB.

Referenced by expandPostRAPseudo().

◆ buildSlotOfVectorInstruction()

MachineInstr * R600InstrInfo::buildSlotOfVectorInstruction	(	MachineBasicBlock &	MBB,
		MachineInstr *	MI,
		unsigned	Slot,
		unsigned	DstReg ) const

Definition at line 1273 of file R600InstrInfo.cpp.

References assert(), buildDefaultInstruction(), llvm::MachineOperand::getImm(), llvm::MachineInstr::getOperand(), getOperandIdx(), llvm::MachineOperand::getReg(), getSlotedOps(), I, llvm::MachineOperand::isImm(), MBB, MI, Operands, llvm::AMDGPUSubtarget::R700, llvm::MachineOperand::setImm(), setImmOperand(), and llvm::MachineOperand::setReg().

◆ calculateIndirectAddress()

unsigned R600InstrInfo::calculateIndirectAddress	(	unsigned	RegIndex,
		unsigned	Channel ) const

Calculate the "Indirect Address" for the given RegIndex and Channel.

We model indirect addressing using a virtual address space that can be accessed with loads and stores. The "Indirect Address" is the memory address in this virtual address space that maps to the given RegIndex and Channel.

Definition at line 978 of file R600InstrInfo.cpp.

References assert().

Referenced by expandPostRAPseudo().

◆ canBeConsideredALU()

bool R600InstrInfo::canBeConsideredALU ( const MachineInstr & MI ) const

Returns: true if this Opcode represents an ALU instruction or an instruction that will be lowered in ExpandSpecialInstrs Pass.

Definition at line 133 of file R600InstrInfo.cpp.

References isALUInstr(), isCubeOp(), isVector(), and MI.

◆ clearFlag()

void R600InstrInfo::clearFlag	(	MachineInstr &	MI,
		unsigned	SrcIdx,
		unsigned	Flag ) const

Clear the specified flag on the instruction.

Definition at line 1444 of file R600InstrInfo.cpp.

References llvm::get(), getFlagOp(), llvm::MachineOperand::getImm(), HAS_NATIVE_OPERANDS, MI, NUM_MO_FLAGS, and llvm::MachineOperand::setImm().

Referenced by addFlag(), and removeBranch().

◆ ClobbersPredicate()

bool R600InstrInfo::ClobbersPredicate	(	MachineInstr &	MI,
		std::vector< MachineOperand > &	Pred,
		bool	SkipDead ) const

override

Definition at line 926 of file R600InstrInfo.cpp.

References isPredicateSetter(), and MI.

◆ copyPhysReg()

void R600InstrInfo::copyPhysReg	(	MachineBasicBlock &	MBB,
		MachineBasicBlock::iterator	MI,
		const DebugLoc &	DL,
		Register	DestReg,
		Register	SrcReg,
		bool	KillSrc,
		bool	RenamableDest = false,
		bool	RenamableSrc = false ) const

override

Definition at line 37 of file R600InstrInfo.cpp.

References llvm::MachineInstrBuilder::addReg(), buildDefaultInstruction(), contains(), llvm::Define, DL, llvm::MachineInstr::getOperand(), getOperandIdx(), llvm::R600RegisterInfo::getSubRegFromChannel(), I, llvm::Implicit, MBB, MI, and llvm::MachineOperand::setIsKill().

◆ CreateTargetScheduleState()

DFAPacketizer * R600InstrInfo::CreateTargetScheduleState ( const TargetSubtargetInfo & STI ) const

override

Definition at line 598 of file R600InstrInfo.cpp.

References llvm::TargetSubtargetInfo::getInstrItineraryData(), and II.

◆ definesAddressRegister()

bool R600InstrInfo::definesAddressRegister ( MachineInstr & MI ) const

Definition at line 208 of file R600InstrInfo.cpp.

References MI.

◆ expandPostRAPseudo()

bool R600InstrInfo::expandPostRAPseudo ( MachineInstr & MI ) const

override

Definition at line 984 of file R600InstrInfo.cpp.

References llvm::Address, buildMovInstr(), calculateIndirectAddress(), getIndirectAddrRegClass(), isRegisterLoad(), isRegisterStore(), MBB, and MI.

◆ FindSwizzleForVectorSlot()

bool R600InstrInfo::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

Enumerate all possible Swizzle sequence to find one that can meet all read port requirements.

Definition at line 463 of file R600InstrInfo.cpp.

References isLegalUpTo(), and NextPossibleSolution().

Referenced by fitsReadPortLimitations().

◆ fitsConstReadLimitations() [1/2]

bool R600InstrInfo::fitsConstReadLimitations ( const std::vector< MachineInstr * > & MIs ) 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

Definition at line 571 of file R600InstrInfo.cpp.

References contains(), fitsConstReadLimitations(), getSrcs(), llvm::SmallSet< T, N, C >::insert(), isALUInstr(), MI, and llvm::SmallSet< T, N, C >::size().

Referenced by fitsConstReadLimitations().

◆ fitsConstReadLimitations() [2/2]

bool R600InstrInfo::fitsConstReadLimitations ( const std::vector< unsigned > & Consts ) const

Same but using const index set instead of MI set.

Definition at line 546 of file R600InstrInfo.cpp.

References assert().

◆ fitsReadPortLimitations()

bool R600InstrInfo::fitsReadPortLimitations	(	const std::vector< MachineInstr * > &	MIs,
		const DenseMap< unsigned, unsigned > &	PV,
		std::vector< BankSwizzle > &	BS,
		bool	isLastAluTrans ) 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.

Definition at line 500 of file R600InstrInfo.cpp.

References ALU_VEC_012_SCL_210, ALU_VEC_021_SCL_122, ALU_VEC_102_SCL_221, ALU_VEC_120_SCL_212, FindSwizzleForVectorSlot(), getOperandIdx(), isConstCompatible(), and MI.

◆ getFlagOp()

MachineOperand & R600InstrInfo::getFlagOp	(	MachineInstr &	MI,
		unsigned	SrcIdx = 0,
		unsigned	Flag = 0 ) const

Parameters

SrcIdx	The register source to set the flag on (e.g src0, src1, src2)
Flag	The flag being set.

Returns: the operand containing the flags for this instruction.

Definition at line 1358 of file R600InstrInfo.cpp.

References assert(), llvm::get(), GET_FLAG_OPERAND_IDX, getOperandIdx(), HAS_NATIVE_OPERANDS, llvm::MachineOperand::isImm(), MI, MO_FLAG_ABS, MO_FLAG_CLAMP, MO_FLAG_LAST, MO_FLAG_MASK, MO_FLAG_NEG, MO_FLAG_NOT_LAST, and R600_InstFlag::OP3.

Referenced by addFlag(), and clearFlag().

◆ getIndirectAddrRegClass()

const TargetRegisterClass * R600InstrInfo::getIndirectAddrRegClass ( ) const

Returns: The register class to be used for loading and storing values from an "Indirect Address" .

Definition at line 1071 of file R600InstrInfo.cpp.

Referenced by expandPostRAPseudo(), and getIndirectIndexBegin().

◆ getIndirectIndexBegin()

int R600InstrInfo::getIndirectIndexBegin ( const MachineFunction & MF ) const

Returns: the smallest register index that will be accessed by an indirect read or write or -1 if indirect addressing is not used by this program.

Definition at line 1141 of file R600InstrInfo.cpp.

References llvm::MCRegisterClass::contains(), llvm::MachineFunction::getFrameInfo(), getIndirectAddrRegClass(), llvm::MachineFrameInfo::getNumObjects(), llvm::MCRegisterClass::getNumRegs(), llvm::MachineFunction::getRegInfo(), llvm::MCRegisterClass::getRegister(), llvm::MachineRegisterInfo::livein_empty(), llvm::MachineRegisterInfo::liveins(), and llvm::Offset.

Referenced by getIndirectIndexEnd(), and reserveIndirectRegisters().

◆ getIndirectIndexEnd()

int R600InstrInfo::getIndirectIndexEnd ( const MachineFunction & MF ) const

Returns: the largest register index that will be accessed by an indirect read or write or -1 if indirect addressing is not used by this program.

Definition at line 1173 of file R600InstrInfo.cpp.

References llvm::MachineFunction::getFrameInfo(), getIndirectIndexBegin(), llvm::MachineFrameInfo::getNumObjects(), llvm::MachineFunction::getSubtarget(), llvm::MachineFrameInfo::hasVarSizedObjects(), and llvm::Offset.

Referenced by reserveIndirectRegisters().

◆ getInstrLatency()

unsigned int R600InstrInfo::getInstrLatency	(	const InstrItineraryData *	ItinData,
		const MachineInstr &	MI,
		unsigned *	PredCost = nullptr ) const

override

Definition at line 970 of file R600InstrInfo.cpp.

◆ getMaxAlusPerClause()

unsigned R600InstrInfo::getMaxAlusPerClause ( ) const

Definition at line 1195 of file R600InstrInfo.cpp.

◆ getOperandIdx() [1/2]

int R600InstrInfo::getOperandIdx	(	const MachineInstr &	MI,
		R600::OpName	Op ) const

Get the index of Op in the MachineInstr.

Returns: -1 if the Instruction does not contain the specified Op.

Definition at line 1337 of file R600InstrInfo.cpp.

References getOperandIdx(), and MI.

Referenced by buildSlotOfVectorInstruction(), copyPhysReg(), fitsReadPortLimitations(), getFlagOp(), getOperandIdx(), getSelIdx(), getSrcs(), isLDSRetInstr(), PredicateInstruction(), and setImmOperand().

◆ getOperandIdx() [2/2]

int R600InstrInfo::getOperandIdx	(	unsigned	Opcode,
		R600::OpName	Op ) const

Get the index of Op for the given Opcode.

Returns: -1 if the Instruction does not contain the specified Op.

Definition at line 1342 of file R600InstrInfo.cpp.

◆ getPredicationCost()

unsigned int R600InstrInfo::getPredicationCost ( const MachineInstr & ) const

override

Definition at line 966 of file R600InstrInfo.cpp.

◆ getRegisterInfo()

const R600RegisterInfo & llvm::R600InstrInfo::getRegisterInfo ( ) const

inline

Definition at line 71 of file R600InstrInfo.h.

◆ getSelIdx()

int R600InstrInfo::getSelIdx	(	unsigned	Opcode,
		unsigned	SrcIdx ) const

Returns: The operand Index for the Sel operand given an index to one of the instruction's src operands.

Definition at line 223 of file R600InstrInfo.cpp.

References getOperandIdx().

◆ getSrcs()

SmallVector< std::pair< MachineOperand *, int64_t >, 3 > R600InstrInfo::getSrcs ( MachineInstr & MI ) 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.

Definition at line 246 of file R600InstrInfo.cpp.

References assert(), llvm::MachineOperand::getImm(), getOperandIdx(), llvm::MachineOperand::getReg(), llvm::MachineOperand::isGlobal(), llvm::MachineOperand::isImm(), and MI.

Referenced by fitsConstReadLimitations().

◆ hasInstrModifiers()

bool R600InstrInfo::hasInstrModifiers ( unsigned Opcode ) const

Definition at line 113 of file R600InstrInfo.cpp.

References llvm::get(), R600_InstFlag::OP1, R600_InstFlag::OP2, and R600_InstFlag::OP3.

◆ insertBranch()

unsigned R600InstrInfo::insertBranch	(	MachineBasicBlock &	MBB,
		MachineBasicBlock *	TBB,
		MachineBasicBlock *	FBB,
		ArrayRef< MachineOperand >	Cond,
		const DebugLoc &	DL,
		int *	BytesAdded = nullptr ) const

override

Definition at line 719 of file R600InstrInfo.cpp.

References addFlag(), llvm::MachineInstrBuilder::addMBB(), llvm::MachineInstrBuilder::addReg(), assert(), llvm::BuildMI(), Cond, DL, findFirstPredicateSetterFrom(), FindLastAluClause(), llvm::get(), llvm::getImm(), llvm::MachineInstr::getOperand(), llvm::Kill, MBB, MO_FLAG_PUSH, llvm::MachineOperand::setImm(), and TBB.

◆ isALUInstr()

bool R600InstrInfo::isALUInstr ( unsigned Opcode ) const

Returns: true if this Opcode represents an ALU instruction.

Definition at line 107 of file R600InstrInfo.cpp.

References R600_InstFlag::ALU_INST, and llvm::get().

Referenced by canBeConsideredALU(), fitsConstReadLimitations(), and readsLDSSrcReg().

◆ isCubeOp()

bool R600InstrInfo::isCubeOp ( unsigned opcode ) const

Definition at line 96 of file R600InstrInfo.cpp.

Referenced by canBeConsideredALU().

◆ isExport()

bool R600InstrInfo::isExport ( unsigned Opcode ) const

Definition at line 169 of file R600InstrInfo.cpp.

References llvm::get(), and R600_InstFlag::IS_EXPORT.

◆ isFlagSet()

bool llvm::R600InstrInfo::isFlagSet	(	const MachineInstr &	MI,
		unsigned	SrcIdx,
		unsigned	Flag ) const

Determine if the specified Flag is set on operand at SrcIdx.

References MI.

◆ isLDSInstr()

bool R600InstrInfo::isLDSInstr ( unsigned Opcode ) const

Definition at line 121 of file R600InstrInfo.cpp.

References llvm::get(), R600_InstFlag::LDS_1A, R600_InstFlag::LDS_1A1D, and R600_InstFlag::LDS_1A2D.

Referenced by isLDSRetInstr().

◆ isLDSRetInstr()

bool R600InstrInfo::isLDSRetInstr ( unsigned Opcode ) const

Definition at line 129 of file R600InstrInfo.cpp.

References getOperandIdx(), and isLDSInstr().

◆ isLegalToSplitMBBAt()

bool R600InstrInfo::isLegalToSplitMBBAt	(	MachineBasicBlock &	MBB,
		MachineBasicBlock::iterator	MBBI ) const

override

Returns: true if MBBI can be moved into a new basic.

Definition at line 73 of file R600InstrInfo.cpp.

References MBB, and MBBI.

◆ isLegalUpTo()

unsigned R600InstrInfo::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

returns how many MIs (whose inputs are represented by IGSrcs) can be packed in the same Instruction Group while meeting read port limitations given a Swz swizzle sequence.

Definition at line 394 of file R600InstrInfo.cpp.

References ALU_VEC_012_SCL_210, ALU_VEC_021_SCL_122, GET_REG_INDEX, getTransSwizzle(), Swizzle(), and llvm::Vector.

Referenced by FindSwizzleForVectorSlot().

◆ isMov()

bool R600InstrInfo::isMov ( unsigned Opcode ) const

Definition at line 81 of file R600InstrInfo.cpp.

◆ isPredicable()

bool R600InstrInfo::isPredicable ( const MachineInstr & MI ) const

override

Definition at line 838 of file R600InstrInfo.cpp.

References llvm::TargetInstrInfo::isPredicable(), isVector(), and MI.

◆ isPredicated()

bool R600InstrInfo::isPredicated ( const MachineInstr & MI ) const

override

Definition at line 823 of file R600InstrInfo.cpp.

References MI.

◆ isProfitableToDupForIfCvt()

bool R600InstrInfo::isProfitableToDupForIfCvt	(	MachineBasicBlock &	MBB,
		unsigned	NumCycles,
		BranchProbability	Probability ) const

override

Definition at line 879 of file R600InstrInfo.cpp.

References MBB.

◆ isProfitableToIfCvt() [1/2]

bool R600InstrInfo::isProfitableToIfCvt	(	MachineBasicBlock &	MBB,
		unsigned	NumCycles,
		unsigned	ExtraPredCycles,
		BranchProbability	Probability ) const

override

Definition at line 860 of file R600InstrInfo.cpp.

References MBB.

◆ isProfitableToIfCvt() [2/2]

bool R600InstrInfo::isProfitableToIfCvt	(	MachineBasicBlock &	TMBB,
		unsigned	NumTCycles,
		unsigned	ExtraTCycles,
		MachineBasicBlock &	FMBB,
		unsigned	NumFCycles,
		unsigned	ExtraFCycles,
		BranchProbability	Probability ) const

override

Definition at line 868 of file R600InstrInfo.cpp.

◆ isProfitableToUnpredicate()

bool R600InstrInfo::isProfitableToUnpredicate	(	MachineBasicBlock &	TMBB,
		MachineBasicBlock &	FMBB ) const

override

Definition at line 887 of file R600InstrInfo.cpp.

◆ isReductionOp()

bool R600InstrInfo::isReductionOp ( unsigned opcode ) const

Definition at line 92 of file R600InstrInfo.cpp.

◆ isRegisterLoad()

bool llvm::R600InstrInfo::isRegisterLoad ( const MachineInstr & MI ) const

inline

Definition at line 322 of file R600InstrInfo.h.

References llvm::get(), MI, and llvm::R600InstrFlags::REGISTER_LOAD.

Referenced by expandPostRAPseudo().

◆ isRegisterStore()

bool llvm::R600InstrInfo::isRegisterStore ( const MachineInstr & MI ) const

inline

Definition at line 318 of file R600InstrInfo.h.

References llvm::get(), MI, and llvm::R600InstrFlags::REGISTER_STORE.

Referenced by expandPostRAPseudo().

◆ isTransOnly() [1/2]

bool R600InstrInfo::isTransOnly ( const MachineInstr & MI ) const

Definition at line 157 of file R600InstrInfo.cpp.

References isTransOnly(), and MI.

◆ isTransOnly() [2/2]

bool R600InstrInfo::isTransOnly ( unsigned Opcode ) const

Definition at line 151 of file R600InstrInfo.cpp.

References llvm::get().

Referenced by isTransOnly().

◆ isVector()

bool R600InstrInfo::isVector ( const MachineInstr & MI ) const

Vector instructions are instructions that must fill all instruction slots within an instruction group.

Definition at line 33 of file R600InstrInfo.cpp.

References llvm::get(), MI, and R600_InstFlag::VECTOR.

Referenced by canBeConsideredALU(), and isPredicable().

◆ isVectorOnly() [1/2]

bool R600InstrInfo::isVectorOnly ( const MachineInstr & MI ) const

Definition at line 165 of file R600InstrInfo.cpp.

References isVectorOnly(), and MI.

◆ isVectorOnly() [2/2]

bool R600InstrInfo::isVectorOnly ( unsigned Opcode ) const

Definition at line 161 of file R600InstrInfo.cpp.

References llvm::get().

Referenced by isVectorOnly().

◆ mustBeLastInClause()

bool R600InstrInfo::mustBeLastInClause ( unsigned Opcode ) const

Definition at line 194 of file R600InstrInfo.cpp.

◆ PredicateInstruction()

bool R600InstrInfo::PredicateInstruction	(	MachineInstr &	MI,
		ArrayRef< MachineOperand >	Pred ) const

override

Definition at line 932 of file R600InstrInfo.cpp.

References llvm::MachineInstrBuilder::addReg(), getOperandIdx(), getReg(), llvm::Implicit, MI, and llvm::MachineOperand::setReg().

◆ readsLDSSrcReg()

bool R600InstrInfo::readsLDSSrcReg ( const MachineInstr & MI ) const

Definition at line 212 of file R600InstrInfo.cpp.

References isALUInstr(), and MI.

◆ removeBranch()

unsigned R600InstrInfo::removeBranch	(	MachineBasicBlock &	MBB,
		int *	BytesRemoved = nullptr ) const

override

Definition at line 764 of file R600InstrInfo.cpp.

References assert(), clearFlag(), findFirstPredicateSetterFrom(), FindLastAluClause(), llvm::get(), I, MBB, and MO_FLAG_PUSH.

◆ reserveIndirectRegisters()

void R600InstrInfo::reserveIndirectRegisters	(	BitVector &	Reserved,
		const MachineFunction &	MF,
		const R600RegisterInfo &	TRI ) const

Reserve the registers that may be accessed using indirect addressing.

Definition at line 1050 of file R600InstrInfo.cpp.

References getIndirectIndexBegin(), getIndirectIndexEnd(), llvm::AMDGPUFrameLowering::getStackWidth(), llvm::MachineFunction::getSubtarget(), llvm::Reserved, and TRI.

◆ reverseBranchCondition()

bool R600InstrInfo::reverseBranchCondition ( SmallVectorImpl< MachineOperand > & Cond ) const

override

Definition at line 893 of file R600InstrInfo.cpp.

References Cond, llvm::MachineOperand::getImm(), llvm::MachineOperand::getReg(), llvm::MachineOperand::setImm(), and llvm::MachineOperand::setReg().

◆ setImmOperand()

void R600InstrInfo::setImmOperand	(	MachineInstr &	MI,
		R600::OpName	Op,
		int64_t	Imm ) const

Helper function for setting instruction flag values.

Definition at line 1346 of file R600InstrInfo.cpp.

References assert(), getOperandIdx(), Imm, and MI.

Referenced by buildMovImm(), and buildSlotOfVectorInstruction().

◆ usesAddressRegister()

bool R600InstrInfo::usesAddressRegister ( MachineInstr & MI ) const

Definition at line 204 of file R600InstrInfo.cpp.

References MI.

◆ usesTextureCache() [1/2]

bool R600InstrInfo::usesTextureCache ( const MachineInstr & MI ) const

Definition at line 187 of file R600InstrInfo.cpp.

References llvm::Function::getCallingConv(), llvm::MachineFunction::getFunction(), llvm::AMDGPU::isCompute(), MI, usesTextureCache(), and usesVertexCache().

◆ usesTextureCache() [2/2]

bool R600InstrInfo::usesTextureCache ( unsigned Opcode ) const

Definition at line 183 of file R600InstrInfo.cpp.

References llvm::get(), IS_TEX, and IS_VTX.

Referenced by usesTextureCache().

◆ usesVertexCache() [1/2]

bool R600InstrInfo::usesVertexCache ( const MachineInstr & MI ) const

Definition at line 177 of file R600InstrInfo.cpp.

References llvm::Function::getCallingConv(), llvm::MachineFunction::getFunction(), llvm::AMDGPU::isCompute(), MI, and usesVertexCache().

◆ usesVertexCache() [2/2]

bool R600InstrInfo::usesVertexCache ( unsigned Opcode ) const

Definition at line 173 of file R600InstrInfo.cpp.

References llvm::get(), and IS_VTX.

Referenced by usesTextureCache(), and usesVertexCache().

The documentation for this class was generated from the following files:

lib/Target/AMDGPU/R600InstrInfo.h
lib/Target/AMDGPU/R600InstrInfo.cpp

Public Types

Public Member Functions

Detailed Description

Member Enumeration Documentation

◆ BankSwizzle

Constructor & Destructor Documentation

◆ R600InstrInfo()

Member Function Documentation

◆ addFlag()

◆ analyzeBranch()

◆ buildDefaultInstruction()

◆ buildIndirectRead()

◆ buildIndirectWrite()

◆ buildMovImm()

◆ buildMovInstr()

◆ buildSlotOfVectorInstruction()

◆ calculateIndirectAddress()

◆ canBeConsideredALU()

◆ clearFlag()

◆ ClobbersPredicate()

◆ copyPhysReg()

◆ CreateTargetScheduleState()

◆ definesAddressRegister()

◆ expandPostRAPseudo()

◆ FindSwizzleForVectorSlot()

◆ fitsConstReadLimitations() [1/2]

◆ fitsConstReadLimitations() [2/2]

◆ fitsReadPortLimitations()

◆ getFlagOp()

◆ getIndirectAddrRegClass()

◆ getIndirectIndexBegin()

◆ getIndirectIndexEnd()

◆ getInstrLatency()

◆ getMaxAlusPerClause()

◆ getOperandIdx() [1/2]

◆ getOperandIdx() [2/2]

◆ getPredicationCost()

◆ getRegisterInfo()

◆ getSelIdx()

◆ getSrcs()

◆ hasInstrModifiers()

◆ insertBranch()

◆ isALUInstr()

◆ isCubeOp()

◆ isExport()

◆ isFlagSet()

◆ isLDSInstr()

◆ isLDSRetInstr()

◆ isLegalToSplitMBBAt()

◆ isLegalUpTo()

◆ isMov()

◆ isPredicable()

◆ isPredicated()

◆ isProfitableToDupForIfCvt()

◆ isProfitableToIfCvt() [1/2]

◆ isProfitableToIfCvt() [2/2]

◆ isProfitableToUnpredicate()

◆ isReductionOp()

◆ isRegisterLoad()

◆ isRegisterStore()

◆ isTransOnly() [1/2]

◆ isTransOnly() [2/2]

◆ isVector()

◆ isVectorOnly() [1/2]

◆ isVectorOnly() [2/2]

◆ mustBeLastInClause()

◆ PredicateInstruction()

◆ readsLDSSrcReg()

◆ removeBranch()

◆ reserveIndirectRegisters()

◆ reverseBranchCondition()

◆ setImmOperand()

◆ usesAddressRegister()

◆ usesTextureCache() [1/2]

◆ usesTextureCache() [2/2]

◆ usesVertexCache() [1/2]

◆ usesVertexCache() [2/2]