#include "Target/AMDGPU/AMDGPUInstructionSelector.h"

Inheritance diagram for llvm::AMDGPUInstructionSelector:

Public Member Functions
	AMDGPUInstructionSelector (const GCNSubtarget &STI, const AMDGPURegisterBankInfo &RBI, const AMDGPUTargetMachine &TM)

bool	select (MachineInstr &I) override
	Select the (possibly generic) instruction `I` to only use target-specific opcodes.

void	setupMF (MachineFunction &MF, GISelKnownBits KB, CodeGenCoverage CoverageInfo, ProfileSummaryInfo PSI, BlockFrequencyInfo BFI) override
	Setup per-MF executor state.

Public Member Functions inherited from llvm::InstructionSelector
virtual	~InstructionSelector ()

virtual bool	select (MachineInstr &I)=0
	Select the (possibly generic) instruction `I` to only use target-specific opcodes.

Public Member Functions inherited from llvm::GIMatchTableExecutor
virtual	~GIMatchTableExecutor ()=default

virtual void	setupGeneratedPerFunctionState (MachineFunction &MF)=0

virtual void	setupMF (MachineFunction &mf, GISelKnownBits kb, CodeGenCoverage covinfo=nullptr, ProfileSummaryInfo psi=nullptr, BlockFrequencyInfo bfi=nullptr)
	Setup per-MF executor state.

Static Public Member Functions
static const char *	getName ()

Static Public Member Functions inherited from llvm::GIMatchTableExecutor
static LLVM_ATTRIBUTE_ALWAYS_INLINE uint64_t	fastDecodeULEB128 (const uint8_t *LLVM_ATTRIBUTE_RESTRICT MatchTable, uint64_t &CurrentIdx)

Additional Inherited Members
Public Attributes inherited from llvm::InstructionSelector
const TargetPassConfig *	TPC = nullptr

MachineOptimizationRemarkEmitter *	MORE = nullptr

GISelObserverWrapper *	AllObservers = nullptr
	Note: InstructionSelect does not track changed instructions.

Public Attributes inherited from llvm::GIMatchTableExecutor
CodeGenCoverage *	CoverageInfo = nullptr

GISelKnownBits *	KB = nullptr

MachineFunction *	MF = nullptr

ProfileSummaryInfo *	PSI = nullptr

BlockFrequencyInfo *	BFI = nullptr

MachineBasicBlock *	CurMBB = nullptr

Protected Types inherited from llvm::GIMatchTableExecutor
using	ComplexRendererFns = std::optional< SmallVector< std::function< void(MachineInstrBuilder &)>, 4 > >

using	RecordedMIVector = SmallVector< MachineInstr *, 4 >

using	NewMIVector = SmallVector< MachineInstrBuilder, 4 >

Protected Member Functions inherited from llvm::GIMatchTableExecutor
bool	shouldOptForSize (const MachineFunction *MF) const

	GIMatchTableExecutor ()

template<class TgtExecutor , class PredicateBitset , class ComplexMatcherMemFn , class CustomRendererFn >
bool	executeMatchTable (TgtExecutor &Exec, MatcherState &State, const ExecInfoTy< PredicateBitset, ComplexMatcherMemFn, CustomRendererFn > &ExecInfo, MachineIRBuilder &Builder, const uint8_t MatchTable, const TargetInstrInfo &TII, MachineRegisterInfo &MRI, const TargetRegisterInfo &TRI, const RegisterBankInfo &RBI, const PredicateBitset &AvailableFeatures, CodeGenCoverage CoverageInfo) const
	Execute a given matcher table and return true if the match was successful and false otherwise.

virtual const uint8_t *	getMatchTable () const

virtual bool	testImmPredicate_I64 (unsigned, int64_t) const

virtual bool	testImmPredicate_APInt (unsigned, const APInt &) const

virtual bool	testImmPredicate_APFloat (unsigned, const APFloat &) const

virtual bool	testMIPredicate_MI (unsigned, const MachineInstr &, const MatcherState &State) const

virtual bool	testSimplePredicate (unsigned) const

virtual bool	runCustomAction (unsigned, const MatcherState &State, NewMIVector &OutMIs) const

bool	isOperandImmEqual (const MachineOperand &MO, int64_t Value, const MachineRegisterInfo &MRI, bool Splat=false) const

bool	isBaseWithConstantOffset (const MachineOperand &Root, const MachineRegisterInfo &MRI) const
	Return true if the specified operand is a G_PTR_ADD with a G_CONSTANT on the right-hand side.

bool	isObviouslySafeToFold (MachineInstr &MI, MachineInstr &IntoMI) const
	Return true if MI can obviously be folded into IntoMI.

Static Protected Member Functions inherited from llvm::GIMatchTableExecutor
template<typename Ty >
static Ty	readBytesAs (const uint8_t *MatchTable)

static ArrayRef< MachineOperand >	getRemainingOperands (const MachineInstr &MI, unsigned FirstVarOp)

Detailed Description

Definition at line 48 of file AMDGPUInstructionSelector.h.

Constructor & Destructor Documentation

◆ AMDGPUInstructionSelector()

AMDGPUInstructionSelector::AMDGPUInstructionSelector	(	const GCNSubtarget &	STI,
		const AMDGPURegisterBankInfo &	RBI,
		const AMDGPUTargetMachine &	TM
	)

Definition at line 43 of file AMDGPUInstructionSelector.cpp.

Member Function Documentation

◆ getName()

static const char * llvm::AMDGPUInstructionSelector::getName ( )

static

◆ select()

bool AMDGPUInstructionSelector::select ( MachineInstr & I )

overridevirtual

Select the (possibly generic) instruction I to only use target-specific opcodes.

It is OK to insert multiple instructions, but they cannot be generic pre-isel instructions.

Returns: whether selection succeeded.

Precondition: I.getParent() && I.getParent()->getParent()

Postcondition: if returns true: for I in all mutated/inserted instructions: !isPreISelGenericOpcode(I.getOpcode())

Implements llvm::InstructionSelector.

Definition at line 3874 of file AMDGPUInstructionSelector.cpp.

References assert(), llvm::GIMatchTableExecutor::CoverageInfo, llvm::AMDGPU::getImageDimIntrinsicInfo(), llvm::AMDGPU::getIntrinsicID(), I, Intr, MRI, and llvm::LLT::scalar().

◆ setupMF()

void AMDGPUInstructionSelector::setupMF	(	MachineFunction &	mf,
		GISelKnownBits *	kb,
		CodeGenCoverage *	covinfo,
		ProfileSummaryInfo *	psi,
		BlockFrequencyInfo *	bfi
	)

overridevirtual

Setup per-MF executor state.

Reimplemented from llvm::GIMatchTableExecutor.

Definition at line 59 of file AMDGPUInstructionSelector.cpp.

References llvm::GIMatchTableExecutor::BFI, llvm::GCNSubtarget::checkSubtargetFeatures(), llvm::GIMatchTableExecutor::CoverageInfo, llvm::MachineFunction::getFunction(), llvm::MachineFunction::getRegInfo(), llvm::MachineFunction::getSubtarget(), llvm::GIMatchTableExecutor::KB, llvm::GIMatchTableExecutor::MF, llvm::GIMatchTableExecutor::PSI, and llvm::GIMatchTableExecutor::setupMF().

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

lib/Target/AMDGPU/AMDGPUInstructionSelector.h
lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp

Public Member Functions

Static Public Member Functions