LLVM 22.0.0git
Public Member Functions | Static Public Member Functions | List of all members
llvm::AMDGPUInstructionSelector Class Referencefinal

#include "Target/AMDGPU/AMDGPUInstructionSelector.h"

Inheritance diagram for llvm::AMDGPUInstructionSelector:
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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, GISelValueTracking *VT, CodeGenCoverage *CoverageInfo, ProfileSummaryInfo *PSI, BlockFrequencyInfo *BFI) override
 Setup per-MF executor state.
Public Member Functions inherited from llvm::InstructionSelector
virtual ~InstructionSelector ()
Public Member Functions inherited from llvm::GIMatchTableExecutor
virtual ~GIMatchTableExecutor ()=default
virtual void setupGeneratedPerFunctionState (MachineFunction &MF)=0

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
GISelValueTracking * VT = nullptr
MachineFunction * MF = nullptr
ProfileSummaryInfo * PSI = nullptr
BlockFrequencyInfo * BFI = nullptr
MachineBasicBlock * CurMBB = nullptr
Protected Types inherited from llvm::GIMatchTableExecutor
using ComplexRendererFns
using RecordedMIVector = SmallVector<MachineInstr *, 4>
using NewMIVector = SmallVector<MachineInstrBuilder, 4>
Protected Member Functions inherited from llvm::GIMatchTableExecutor
bool shouldOptForSize (const MachineFunction *MF) const
LLVM_ABI 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 testMOPredicate_MO (unsigned, const MachineOperand &, const MatcherState &State) const
virtual bool testSimplePredicate (unsigned) const
virtual bool runCustomAction (unsigned, const MatcherState &State, NewMIVector &OutMIs) const
LLVM_ABI bool isOperandImmEqual (const MachineOperand &MO, int64_t Value, const MachineRegisterInfo &MRI, bool Splat=false) const
LLVM_ABI 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.
LLVM_ABI 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.

References GET_GLOBALISEL_PREDICATES_INIT, and GET_GLOBALISEL_TEMPORARIES_INIT.

Member Function Documentation

◆ getName()

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

References llvm::GIMatchTableExecutor::BFI, llvm::GIMatchTableExecutor::CoverageInfo, llvm::GIMatchTableExecutor::MF, llvm::GIMatchTableExecutor::PSI, and llvm::GIMatchTableExecutor::VT.

◆ 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 4048 of file AMDGPUInstructionSelector.cpp.

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

◆ setupMF()

void AMDGPUInstructionSelector::setupMF ( MachineFunction & mf,
GISelValueTracking * vt,
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::GIMatchTableExecutor::MF, llvm::GIMatchTableExecutor::PSI, llvm::GIMatchTableExecutor::setupMF(), and llvm::GIMatchTableExecutor::VT.

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