#include "Target/RISCV/RISCVISelDAGToDAG.h"

Inheritance diagram for llvm::RISCVDAGToDAGISel:

Public Member Functions
	RISCVDAGToDAGISel ()=delete

	RISCVDAGToDAGISel (RISCVTargetMachine &TargetMachine, CodeGenOptLevel OptLevel)

bool	runOnMachineFunction (MachineFunction &MF) override

void	PreprocessISelDAG () override
	PreprocessISelDAG - This hook allows targets to hack on the graph before instruction selection starts.

void	PostprocessISelDAG () override
	PostprocessISelDAG() - This hook allows the target to hack on the graph right after selection.

void	Select (SDNode *Node) override
	Main hook for targets to transform nodes into machine nodes.

bool	SelectInlineAsmMemoryOperand (const SDValue &Op, InlineAsm::ConstraintCode ConstraintID, std::vector< SDValue > &OutOps) override
	SelectInlineAsmMemoryOperand - Select the specified address as a target addressing mode, according to the specified constraint.

bool	SelectAddrFrameIndex (SDValue Addr, SDValue &Base, SDValue &Offset)

bool	SelectAddrRegImm (SDValue Addr, SDValue &Base, SDValue &Offset)

bool	SelectAddrRegImm9 (SDValue Addr, SDValue &Base, SDValue &Offset)
	Similar to SelectAddrRegImm, except that the offset is restricted to uimm9.

bool	SelectAddrRegImmLsb00000 (SDValue Addr, SDValue &Base, SDValue &Offset)
	Similar to SelectAddrRegImm, except that the least significant 5 bits of Offset should be all zeros.

bool	SelectAddrRegRegScale (SDValue Addr, unsigned MaxShiftAmount, SDValue &Base, SDValue &Index, SDValue &Scale)

template<unsigned MaxShift>
bool	SelectAddrRegRegScale (SDValue Addr, SDValue &Base, SDValue &Index, SDValue &Scale)

bool	SelectAddrRegZextRegScale (SDValue Addr, unsigned MaxShiftAmount, unsigned Bits, SDValue &Base, SDValue &Index, SDValue &Scale)

template<unsigned MaxShift, unsigned Bits>
bool	SelectAddrRegZextRegScale (SDValue Addr, SDValue &Base, SDValue &Index, SDValue &Scale)

bool	SelectAddrRegReg (SDValue Addr, SDValue &Base, SDValue &Offset)

bool	tryShrinkShlLogicImm (SDNode *Node)

bool	trySignedBitfieldExtract (SDNode *Node)

bool	trySignedBitfieldInsertInSign (SDNode *Node)

bool	trySignedBitfieldInsertInMask (SDNode *Node)

bool	tryBitfieldInsertOpFromXor (SDNode *Node)

bool	tryBitfieldInsertOpFromOrAndImm (SDNode *Node)

bool	tryUnsignedBitfieldExtract (SDNode *Node, const SDLoc &DL, MVT VT, SDValue X, unsigned Msb, unsigned Lsb)

bool	tryUnsignedBitfieldInsertInZero (SDNode *Node, const SDLoc &DL, MVT VT, SDValue X, unsigned Msb, unsigned Lsb)

bool	tryIndexedLoad (SDNode *Node)

bool	selectShiftMask (SDValue N, unsigned ShiftWidth, SDValue &ShAmt)

bool	selectShiftMaskXLen (SDValue N, SDValue &ShAmt)

bool	selectShiftMask32 (SDValue N, SDValue &ShAmt)

bool	selectSETCC (SDValue N, ISD::CondCode ExpectedCCVal, SDValue &Val)
	RISC-V doesn't have general instructions for integer setne/seteq, but we can check for equality with 0.

bool	selectSETNE (SDValue N, SDValue &Val)

bool	selectSETEQ (SDValue N, SDValue &Val)

bool	selectSExtBits (SDValue N, unsigned Bits, SDValue &Val)

template<unsigned Bits>
bool	selectSExtBits (SDValue N, SDValue &Val)

bool	selectZExtBits (SDValue N, unsigned Bits, SDValue &Val)

template<unsigned Bits>
bool	selectZExtBits (SDValue N, SDValue &Val)

bool	selectSHXADDOp (SDValue N, unsigned ShAmt, SDValue &Val)
	Look for various patterns that can be done with a SHL that can be folded into a SHXADD.

template<unsigned ShAmt>
bool	selectSHXADDOp (SDValue N, SDValue &Val)

bool	selectSHXADD_UWOp (SDValue N, unsigned ShAmt, SDValue &Val)
	Look for various patterns that can be done with a SHL that can be folded into a SHXADD_UW.

template<unsigned ShAmt>
bool	selectSHXADD_UWOp (SDValue N, SDValue &Val)

bool	selectZExtImm32 (SDValue N, SDValue &Val)

bool	selectNegImm (SDValue N, SDValue &Val)

bool	selectInvLogicImm (SDValue N, SDValue &Val)

bool	orDisjoint (const SDNode *Node) const

bool	hasAllNBitUsers (SDNode *Node, unsigned Bits, const unsigned Depth=0) const

bool	hasAllBUsers (SDNode *Node) const

bool	hasAllHUsers (SDNode *Node) const

bool	hasAllWUsers (SDNode *Node) const

bool	selectSimm5Shl2 (SDValue N, SDValue &Simm5, SDValue &Shl2)

bool	selectVLOp (SDValue N, SDValue &VL)

bool	selectVSplat (SDValue N, SDValue &SplatVal)

bool	selectVSplatSimm5 (SDValue N, SDValue &SplatVal)

bool	selectVSplatUimm (SDValue N, unsigned Bits, SDValue &SplatVal)

template<unsigned Bits>
bool	selectVSplatUimmBits (SDValue N, SDValue &Val)

bool	selectVSplatSimm5Plus1 (SDValue N, SDValue &SplatVal)

bool	selectVSplatSimm5Plus1NoDec (SDValue N, SDValue &SplatVal)

bool	selectVSplatSimm5Plus1NonZero (SDValue N, SDValue &SplatVal)

bool	selectVSplatImm64Neg (SDValue N, SDValue &SplatVal)

bool	selectLow8BitsVSplat (SDValue N, SDValue &SplatVal)

bool	selectScalarFPAsInt (SDValue N, SDValue &Imm)

bool	selectRVVSimm5 (SDValue N, unsigned Width, SDValue &Imm)

template<unsigned Width>
bool	selectRVVSimm5 (SDValue N, SDValue &Imm)

void	addVectorLoadStoreOperands (SDNode Node, unsigned SEWImm, const SDLoc &DL, unsigned CurOp, bool IsMasked, bool IsStridedOrIndexed, SmallVectorImpl< SDValue > &Operands, bool IsLoad=false, MVT IndexVT=nullptr)

void	selectVLSEG (SDNode *Node, unsigned NF, bool IsMasked, bool IsStrided)

void	selectVLSEGFF (SDNode *Node, unsigned NF, bool IsMasked)

void	selectVLXSEG (SDNode *Node, unsigned NF, bool IsMasked, bool IsOrdered)

void	selectVSSEG (SDNode *Node, unsigned NF, bool IsMasked, bool IsStrided)

void	selectVSXSEG (SDNode *Node, unsigned NF, bool IsMasked, bool IsOrdered)

void	selectVSETVLI (SDNode *Node)

void	selectSF_VC_X_SE (SDNode *Node)

Public Member Functions inherited from llvm::SelectionDAGISel
	SelectionDAGISel (TargetMachine &tm, CodeGenOptLevel OL=CodeGenOptLevel::Default)

virtual	~SelectionDAGISel ()

BatchAAResults *	getBatchAA () const
	Returns a (possibly null) pointer to the current BatchAAResults.

const TargetLowering *	getTargetLowering () const

void	initializeAnalysisResults (MachineFunctionAnalysisManager &MFAM)

void	initializeAnalysisResults (MachineFunctionPass &MFP)

virtual bool	runOnMachineFunction (MachineFunction &mf)

virtual void	emitFunctionEntryCode ()

virtual void	PreprocessISelDAG ()
	PreprocessISelDAG - This hook allows targets to hack on the graph before instruction selection starts.

virtual void	PostprocessISelDAG ()
	PostprocessISelDAG() - This hook allows the target to hack on the graph right after selection.

virtual void	Select (SDNode *N)=0
	Main hook for targets to transform nodes into machine nodes.

virtual bool	SelectInlineAsmMemoryOperand (const SDValue &Op, InlineAsm::ConstraintCode ConstraintID, std::vector< SDValue > &OutOps)
	SelectInlineAsmMemoryOperand - Select the specified address as a target addressing mode, according to the specified constraint.

virtual bool	IsProfitableToFold (SDValue N, SDNode U, SDNode Root) const
	IsProfitableToFold - Returns true if it's profitable to fold the specific operand node N of U during instruction selection that starts at Root.

bool	CheckAndMask (SDValue LHS, ConstantSDNode *RHS, int64_t DesiredMaskS) const
	CheckAndMask - The isel is trying to match something like (and X, 255).

bool	CheckOrMask (SDValue LHS, ConstantSDNode *RHS, int64_t DesiredMaskS) const
	CheckOrMask - The isel is trying to match something like (or X, 255).

virtual bool	CheckPatternPredicate (unsigned PredNo) const
	CheckPatternPredicate - This function is generated by tblgen in the target.

virtual bool	CheckNodePredicate (SDValue Op, unsigned PredNo) const
	CheckNodePredicate - This function is generated by tblgen in the target.

virtual bool	CheckNodePredicateWithOperands (SDValue Op, unsigned PredNo, ArrayRef< SDValue > Operands) const
	CheckNodePredicateWithOperands - This function is generated by tblgen in the target.

virtual bool	CheckComplexPattern (SDNode Root, SDNode Parent, SDValue N, unsigned PatternNo, SmallVectorImpl< std::pair< SDValue, SDNode * > > &Result)

virtual SDValue	RunSDNodeXForm (SDValue V, unsigned XFormNo)

void	SelectCodeCommon (SDNode NodeToMatch, const unsigned char MatcherTable, unsigned TableSize)

virtual bool	ComplexPatternFuncMutatesDAG () const
	Return true if complex patterns for this target can mutate the DAG.

bool	mayRaiseFPException (SDNode *Node) const
	Return whether the node may raise an FP exception.

bool	isOrEquivalentToAdd (const SDNode *N) const

Static Public Member Functions
static RISCVCC::CondCode	getRISCVCCForIntCC (ISD::CondCode CC)

Static Public Member Functions inherited from llvm::SelectionDAGISel
static bool	IsLegalToFold (SDValue N, SDNode U, SDNode Root, CodeGenOptLevel OptLevel, bool IgnoreChains=false)
	IsLegalToFold - Returns true if the specific operand node N of U can be folded during instruction selection that starts at Root.

static void	InvalidateNodeId (SDNode *N)

static int	getUninvalidatedNodeId (SDNode *N)

static void	EnforceNodeIdInvariant (SDNode *N)

static int	getNumFixedFromVariadicInfo (unsigned Flags)
	getNumFixedFromVariadicInfo - Transform an EmitNode flags word into the number of fixed arity values that should be skipped when copying from the root.

Additional Inherited Members
Public Types inherited from llvm::SelectionDAGISel
enum	BuiltinOpcodes { OPC_Scope , OPC_RecordNode , OPC_RecordChild0 , OPC_RecordChild1 , OPC_RecordChild2 , OPC_RecordChild3 , OPC_RecordChild4 , OPC_RecordChild5 , OPC_RecordChild6 , OPC_RecordChild7 , OPC_RecordMemRef , OPC_CaptureGlueInput , OPC_MoveChild , OPC_MoveChild0 , OPC_MoveChild1 , OPC_MoveChild2 , OPC_MoveChild3 , OPC_MoveChild4 , OPC_MoveChild5 , OPC_MoveChild6 , OPC_MoveChild7 , OPC_MoveSibling , OPC_MoveSibling0 , OPC_MoveSibling1 , OPC_MoveSibling2 , OPC_MoveSibling3 , OPC_MoveSibling4 , OPC_MoveSibling5 , OPC_MoveSibling6 , OPC_MoveSibling7 , OPC_MoveParent , OPC_CheckSame , OPC_CheckChild0Same , OPC_CheckChild1Same , OPC_CheckChild2Same , OPC_CheckChild3Same , OPC_CheckPatternPredicate , OPC_CheckPatternPredicate0 , OPC_CheckPatternPredicate1 , OPC_CheckPatternPredicate2 , OPC_CheckPatternPredicate3 , OPC_CheckPatternPredicate4 , OPC_CheckPatternPredicate5 , OPC_CheckPatternPredicate6 , OPC_CheckPatternPredicate7 , OPC_CheckPatternPredicateTwoByte , OPC_CheckPredicate , OPC_CheckPredicate0 , OPC_CheckPredicate1 , OPC_CheckPredicate2 , OPC_CheckPredicate3 , OPC_CheckPredicate4 , OPC_CheckPredicate5 , OPC_CheckPredicate6 , OPC_CheckPredicate7 , OPC_CheckPredicateWithOperands , OPC_CheckOpcode , OPC_SwitchOpcode , OPC_CheckType , OPC_CheckTypeI32 , OPC_CheckTypeI64 , OPC_CheckTypeRes , OPC_SwitchType , OPC_CheckChild0Type , OPC_CheckChild1Type , OPC_CheckChild2Type , OPC_CheckChild3Type , OPC_CheckChild4Type , OPC_CheckChild5Type , OPC_CheckChild6Type , OPC_CheckChild7Type , OPC_CheckChild0TypeI32 , OPC_CheckChild1TypeI32 , OPC_CheckChild2TypeI32 , OPC_CheckChild3TypeI32 , OPC_CheckChild4TypeI32 , OPC_CheckChild5TypeI32 , OPC_CheckChild6TypeI32 , OPC_CheckChild7TypeI32 , OPC_CheckChild0TypeI64 , OPC_CheckChild1TypeI64 , OPC_CheckChild2TypeI64 , OPC_CheckChild3TypeI64 , OPC_CheckChild4TypeI64 , OPC_CheckChild5TypeI64 , OPC_CheckChild6TypeI64 , OPC_CheckChild7TypeI64 , OPC_CheckInteger , OPC_CheckChild0Integer , OPC_CheckChild1Integer , OPC_CheckChild2Integer , OPC_CheckChild3Integer , OPC_CheckChild4Integer , OPC_CheckCondCode , OPC_CheckChild2CondCode , OPC_CheckValueType , OPC_CheckComplexPat , OPC_CheckComplexPat0 , OPC_CheckComplexPat1 , OPC_CheckComplexPat2 , OPC_CheckComplexPat3 , OPC_CheckComplexPat4 , OPC_CheckComplexPat5 , OPC_CheckComplexPat6 , OPC_CheckComplexPat7 , OPC_CheckAndImm , OPC_CheckOrImm , OPC_CheckImmAllOnesV , OPC_CheckImmAllZerosV , OPC_CheckFoldableChainNode , OPC_EmitInteger , OPC_EmitInteger8 , OPC_EmitInteger16 , OPC_EmitInteger32 , OPC_EmitInteger64 , OPC_EmitStringInteger , OPC_EmitStringInteger32 , OPC_EmitRegister , OPC_EmitRegisterI32 , OPC_EmitRegisterI64 , OPC_EmitRegister2 , OPC_EmitConvertToTarget , OPC_EmitConvertToTarget0 , OPC_EmitConvertToTarget1 , OPC_EmitConvertToTarget2 , OPC_EmitConvertToTarget3 , OPC_EmitConvertToTarget4 , OPC_EmitConvertToTarget5 , OPC_EmitConvertToTarget6 , OPC_EmitConvertToTarget7 , OPC_EmitMergeInputChains , OPC_EmitMergeInputChains1_0 , OPC_EmitMergeInputChains1_1 , OPC_EmitMergeInputChains1_2 , OPC_EmitCopyToReg , OPC_EmitCopyToReg0 , OPC_EmitCopyToReg1 , OPC_EmitCopyToReg2 , OPC_EmitCopyToReg3 , OPC_EmitCopyToReg4 , OPC_EmitCopyToReg5 , OPC_EmitCopyToReg6 , OPC_EmitCopyToReg7 , OPC_EmitCopyToRegTwoByte , OPC_EmitNodeXForm , OPC_EmitNode , OPC_EmitNode0 , OPC_EmitNode1 , OPC_EmitNode2 , OPC_EmitNode0None , OPC_EmitNode1None , OPC_EmitNode2None , OPC_EmitNode0Chain , OPC_EmitNode1Chain , OPC_EmitNode2Chain , OPC_MorphNodeTo , OPC_MorphNodeTo0 , OPC_MorphNodeTo1 , OPC_MorphNodeTo2 , OPC_MorphNodeTo0None , OPC_MorphNodeTo1None , OPC_MorphNodeTo2None , OPC_MorphNodeTo0Chain , OPC_MorphNodeTo1Chain , OPC_MorphNodeTo2Chain , OPC_MorphNodeTo0GlueInput , OPC_MorphNodeTo1GlueInput , OPC_MorphNodeTo2GlueInput , OPC_MorphNodeTo0GlueOutput , OPC_MorphNodeTo1GlueOutput , OPC_MorphNodeTo2GlueOutput , OPC_CompleteMatch , OPC_Coverage }

enum	{ OPFL_None = 0 , OPFL_Chain = 1 , OPFL_GlueInput = 2 , OPFL_GlueOutput = 4 , OPFL_MemRefs = 8 , OPFL_Variadic0 = 1 << 4 , OPFL_Variadic1 = 2 << 4 , OPFL_Variadic2 = 3 << 4 , OPFL_Variadic3 = 4 << 4 , OPFL_Variadic4 = 5 << 4 , OPFL_Variadic5 = 6 << 4 , OPFL_Variadic6 = 7 << 4 , OPFL_Variadic7 = 8 << 4 , OPFL_VariadicInfo = 15 << 4 }

Public Attributes inherited from llvm::SelectionDAGISel
TargetMachine &	TM

const TargetLibraryInfo *	LibInfo

std::unique_ptr< FunctionLoweringInfo >	FuncInfo

std::unique_ptr< SwiftErrorValueTracking >	SwiftError

MachineFunction *	MF

MachineModuleInfo *	MMI

MachineRegisterInfo *	RegInfo

SelectionDAG *	CurDAG

std::unique_ptr< SelectionDAGBuilder >	SDB

std::optional< BatchAAResults >	BatchAA

AssumptionCache *	AC = nullptr

GCFunctionInfo *	GFI = nullptr

SSPLayoutInfo *	SP = nullptr

CodeGenOptLevel	OptLevel

const TargetInstrInfo *	TII

const TargetLowering *	TLI

bool	FastISelFailed

SmallPtrSet< const Instruction *, 4 >	ElidedArgCopyInstrs

std::unique_ptr< OptimizationRemarkEmitter >	ORE
	Current optimization remark emitter.

bool	MatchFilterFuncName = false
	True if the function currently processing is in the function printing list (i.e.

StringRef	FuncName

Protected Member Functions inherited from llvm::SelectionDAGISel
void	ReplaceUses (SDValue F, SDValue T)
	ReplaceUses - replace all uses of the old node F with the use of the new node T.

void	ReplaceUses (const SDValue F, const SDValue T, unsigned Num)
	ReplaceUses - replace all uses of the old nodes F with the use of the new nodes T.

void	ReplaceUses (SDNode F, SDNode T)
	ReplaceUses - replace all uses of the old node F with the use of the new node T.

void	ReplaceNode (SDNode F, SDNode T)
	Replace all uses of `F` with `T`, then remove `F` from the DAG.

void	SelectInlineAsmMemoryOperands (std::vector< SDValue > &Ops, const SDLoc &DL)
	SelectInlineAsmMemoryOperands - Calls to this are automatically generated by tblgen.

virtual StringRef	getPatternForIndex (unsigned index)
	getPatternForIndex - Patterns selected by tablegen during ISEL

virtual StringRef	getIncludePathForIndex (unsigned index)
	getIncludePathForIndex - get the td source location of pattern instantiation

bool	shouldOptForSize (const MachineFunction *MF) const

Protected Attributes inherited from llvm::SelectionDAGISel
unsigned	DAGSize = 0
	DAGSize - Size of DAG being instruction selected.

Detailed Description

Definition at line 24 of file RISCVISelDAGToDAG.h.

Constructor & Destructor Documentation

◆ RISCVDAGToDAGISel() [1/2]

llvm::RISCVDAGToDAGISel::RISCVDAGToDAGISel ( )

delete

◆ RISCVDAGToDAGISel() [2/2]

llvm::RISCVDAGToDAGISel::RISCVDAGToDAGISel	(	RISCVTargetMachine &	TargetMachine,
		CodeGenOptLevel	OptLevel
	)

inlineexplicit

Definition at line 30 of file RISCVISelDAGToDAG.h.

Member Function Documentation

◆ addVectorLoadStoreOperands()

void RISCVDAGToDAGISel::addVectorLoadStoreOperands	(	SDNode *	Node,
		unsigned	SEWImm,
		const SDLoc &	DL,
		unsigned	CurOp,
		bool	IsMasked,
		bool	IsStridedOrIndexed,
		SmallVectorImpl< SDValue > &	Operands,
		bool	IsLoad = `false`,
		MVT *	IndexVT = `nullptr`
	)

Definition at line 243 of file RISCVISelDAGToDAG.cpp.

References llvm::SelectionDAGISel::CurDAG, DL, llvm::SelectionDAG::getTargetConstant(), llvm::RISCVSubtarget::getXLenVT(), llvm::RISCVVType::MASK_AGNOSTIC, Operands, and selectVLOp().

Referenced by Select(), selectVLSEG(), selectVLSEGFF(), selectVLXSEG(), selectVSSEG(), and selectVSXSEG().

◆ getRISCVCCForIntCC()

static RISCVCC::CondCode llvm::RISCVDAGToDAGISel::getRISCVCCForIntCC ( ISD::CondCode CC )

inlinestatic

Definition at line 175 of file RISCVISelDAGToDAG.h.

References llvm::RISCVCC::COND_EQ, llvm::RISCVCC::COND_GE, llvm::RISCVCC::COND_GEU, llvm::RISCVCC::COND_LT, llvm::RISCVCC::COND_LTU, llvm::RISCVCC::COND_NE, llvm_unreachable, llvm::ISD::SETEQ, llvm::ISD::SETGE, llvm::ISD::SETLT, llvm::ISD::SETNE, llvm::ISD::SETUGE, and llvm::ISD::SETULT.

◆ hasAllBUsers()

bool llvm::RISCVDAGToDAGISel::hasAllBUsers ( SDNode * Node ) const

inline

Definition at line 128 of file RISCVISelDAGToDAG.h.

References hasAllNBitUsers().

Referenced by Select().

◆ hasAllHUsers()

bool llvm::RISCVDAGToDAGISel::hasAllHUsers ( SDNode * Node ) const

inline

Definition at line 129 of file RISCVISelDAGToDAG.h.

References hasAllNBitUsers().

Referenced by Select().

◆ hasAllNBitUsers()

bool RISCVDAGToDAGISel::hasAllNBitUsers	(	SDNode *	Node,
		unsigned	Bits,
		const unsigned	Depth = `0`
	)		const

◆ hasAllWUsers()

bool llvm::RISCVDAGToDAGISel::hasAllWUsers ( SDNode * Node ) const

inline

Definition at line 130 of file RISCVISelDAGToDAG.h.

References hasAllNBitUsers().

Referenced by Select().

◆ orDisjoint()

bool RISCVDAGToDAGISel::orDisjoint ( const SDNode * Node ) const

Definition at line 3680 of file RISCVISelDAGToDAG.cpp.

References assert(), llvm::SelectionDAGISel::CurDAG, llvm::SelectionDAG::haveNoCommonBitsSet(), N, and llvm::ISD::OR.

Referenced by selectZExtImm32().

◆ PostprocessISelDAG()

void RISCVDAGToDAGISel::PostprocessISelDAG ( )

overridevirtual

PostprocessISelDAG() - This hook allows the target to hack on the graph right after selection.

Reimplemented from llvm::SelectionDAGISel.

Definition at line 146 of file RISCVISelDAGToDAG.cpp.

References llvm::SelectionDAG::allnodes_begin(), llvm::SelectionDAG::allnodes_end(), llvm::SelectionDAGISel::CurDAG, llvm::SelectionDAG::getRoot(), llvm::HandleSDNode::getValue(), N, llvm::SelectionDAG::RemoveDeadNodes(), and llvm::SelectionDAG::setRoot().

◆ PreprocessISelDAG()

void RISCVDAGToDAGISel::PreprocessISelDAG ( )

overridevirtual

PreprocessISelDAG - This hook allows targets to hack on the graph before instruction selection starts.

Reimplemented from llvm::SelectionDAGISel.

Definition at line 42 of file RISCVISelDAGToDAG.cpp.

◆ runOnMachineFunction()

bool llvm::RISCVDAGToDAGISel::runOnMachineFunction ( MachineFunction & MF )

inlineoverridevirtual

Reimplemented from llvm::SelectionDAGISel.

Definition at line 34 of file RISCVISelDAGToDAG.h.

References llvm::MachineFunction::getSubtarget(), llvm::SelectionDAGISel::MF, and llvm::SelectionDAGISel::runOnMachineFunction().

◆ Select()

void RISCVDAGToDAGISel::Select ( SDNode * N )

overridevirtual

Main hook for targets to transform nodes into machine nodes.

Implements llvm::SelectionDAGISel.

Definition at line 1083 of file RISCVISelDAGToDAG.cpp.

◆ SelectAddrFrameIndex()

bool RISCVDAGToDAGISel::SelectAddrFrameIndex	(	SDValue	Addr,
		SDValue &	Base,
		SDValue &	Offset
	)

Definition at line 2861 of file RISCVISelDAGToDAG.cpp.

References Addr, llvm::sampleprof::Base, llvm::SelectionDAGISel::CurDAG, llvm::SelectionDAG::getTargetConstant(), llvm::SelectionDAG::getTargetFrameIndex(), llvm::RISCVSubtarget::getXLenVT(), and llvm::Offset.

Referenced by SelectAddrRegImm(), SelectAddrRegImm9(), and SelectAddrRegImmLsb00000().

◆ SelectAddrRegImm()

bool RISCVDAGToDAGISel::SelectAddrRegImm	(	SDValue	Addr,
		SDValue &	Base,
		SDValue &	Offset
	)

◆ SelectAddrRegImm9()

bool RISCVDAGToDAGISel::SelectAddrRegImm9	(	SDValue	Addr,
		SDValue &	Base,
		SDValue &	Offset
	)

Similar to SelectAddrRegImm, except that the offset is restricted to uimm9.

Definition at line 3046 of file RISCVISelDAGToDAG.cpp.

References Addr, llvm::sampleprof::Base, llvm::SelectionDAGISel::CurDAG, DL, llvm::SelectionDAG::getSignedTargetConstant(), llvm::SelectionDAG::getTargetConstant(), llvm::SelectionDAG::getTargetFrameIndex(), llvm::SelectionDAG::isBaseWithConstantOffset(), llvm::Offset, and SelectAddrFrameIndex().

◆ SelectAddrRegImmLsb00000()

bool RISCVDAGToDAGISel::SelectAddrRegImmLsb00000	(	SDValue	Addr,
		SDValue &	Base,
		SDValue &	Offset
	)

Similar to SelectAddrRegImm, except that the least significant 5 bits of Offset should be all zeros.

Definition at line 3073 of file RISCVISelDAGToDAG.cpp.

References llvm::ISD::ADD, Addr, assert(), llvm::sampleprof::Base, llvm::SelectionDAGISel::CurDAG, DL, llvm::SelectionDAG::getMachineNode(), llvm::SelectionDAG::getSignedTargetConstant(), llvm::SelectionDAG::getTargetConstant(), llvm::SelectionDAG::getTargetFrameIndex(), llvm::SelectionDAG::isBaseWithConstantOffset(), llvm::Offset, SelectAddrFrameIndex(), and selectConstantAddr().

◆ SelectAddrRegReg()

bool RISCVDAGToDAGISel::SelectAddrRegReg	(	SDValue	Addr,
		SDValue &	Base,
		SDValue &	Offset
	)

Definition at line 3297 of file RISCVISelDAGToDAG.cpp.

References llvm::ISD::ADD, Addr, llvm::sampleprof::Base, and llvm::Offset.

◆ SelectAddrRegRegScale() [1/2]

template<unsigned MaxShift>

bool llvm::RISCVDAGToDAGISel::SelectAddrRegRegScale	(	SDValue	Addr,
		SDValue &	Base,
		SDValue &	Index,
		SDValue &	Scale
	)

inline

Definition at line 57 of file RISCVISelDAGToDAG.h.

References Addr, llvm::sampleprof::Base, Index, and SelectAddrRegRegScale().

◆ SelectAddrRegRegScale() [2/2]

bool RISCVDAGToDAGISel::SelectAddrRegRegScale	(	SDValue	Addr,
		unsigned	MaxShiftAmount,
		SDValue &	Base,
		SDValue &	Index,
		SDValue &	Scale
	)

Definition at line 3195 of file RISCVISelDAGToDAG.cpp.

References llvm::ISD::ADD, Addr, llvm::sampleprof::Base, llvm::SelectionDAGISel::CurDAG, llvm::SelectionDAG::getMachineNode(), llvm::SelectionDAG::getTargetConstant(), isWorthFoldingIntoRegRegScale(), LHS, N, RHS, and llvm::ISD::SHL.

Referenced by SelectAddrRegRegScale(), and SelectAddrRegZextRegScale().

◆ SelectAddrRegZextRegScale() [1/2]

template<unsigned MaxShift, unsigned Bits>

bool llvm::RISCVDAGToDAGISel::SelectAddrRegZextRegScale	(	SDValue	Addr,
		SDValue &	Base,
		SDValue &	Index,
		SDValue &	Scale
	)

inline

Definition at line 67 of file RISCVISelDAGToDAG.h.

References Addr, llvm::sampleprof::Base, Index, and SelectAddrRegZextRegScale().

◆ SelectAddrRegZextRegScale() [2/2]

bool RISCVDAGToDAGISel::SelectAddrRegZextRegScale	(	SDValue	Addr,
		unsigned	MaxShiftAmount,
		unsigned	Bits,
		SDValue &	Base,
		SDValue &	Index,
		SDValue &	Scale
	)

Definition at line 3278 of file RISCVISelDAGToDAG.cpp.

References Addr, llvm::ISD::AND, llvm::sampleprof::Base, llvm::CallingConv::C, and SelectAddrRegRegScale().

Referenced by SelectAddrRegZextRegScale().

◆ SelectInlineAsmMemoryOperand()

bool RISCVDAGToDAGISel::SelectInlineAsmMemoryOperand	(	const SDValue &	Op,
		InlineAsm::ConstraintCode	ConstraintID,
		std::vector< SDValue > &	OutOps
	)

overridevirtual

SelectInlineAsmMemoryOperand - Select the specified address as a target addressing mode, according to the specified constraint.

If this does not match or is not implemented, return true. The resultant operands (which will appear in the machine instruction) should be added to the OutOps vector.

Reimplemented from llvm::SelectionDAGISel.

Definition at line 2833 of file RISCVISelDAGToDAG.cpp.

References llvm::InlineAsm::A, assert(), llvm::SelectionDAGISel::CurDAG, llvm::InlineAsm::getMemConstraintName(), llvm::SelectionDAG::getTargetConstant(), llvm::RISCVSubtarget::getXLenVT(), llvm::InlineAsm::m, llvm::InlineAsm::o, llvm::report_fatal_error(), and SelectAddrRegImm().

◆ selectInvLogicImm()

bool RISCVDAGToDAGISel::selectInvLogicImm	(	SDValue	N,
		SDValue &	Val
	)

Definition at line 3749 of file RISCVISelDAGToDAG.cpp.

References llvm::all_of(), llvm::ISD::AND, llvm::SelectionDAGISel::CurDAG, N, llvm::ISD::OR, selectImm(), and llvm::ISD::XOR.

◆ selectLow8BitsVSplat()

bool RISCVDAGToDAGISel::selectLow8BitsVSplat	(	SDValue	N,
		SDValue &	SplatVal
	)

Definition at line 4138 of file RISCVISelDAGToDAG.cpp.

References N, selectVSplat(), llvm::ISD::SIGN_EXTEND, and llvm::ISD::ZERO_EXTEND.

◆ selectNegImm()

bool RISCVDAGToDAGISel::selectNegImm	(	SDValue	N,
		SDValue &	Val
	)

Definition at line 3723 of file RISCVISelDAGToDAG.cpp.

References llvm::ISD::ADD, llvm::all_of(), and N.

Referenced by selectVSplatImm64Neg().

◆ selectRVVSimm5() [1/2]

template<unsigned Width>

bool llvm::RISCVDAGToDAGISel::selectRVVSimm5	(	SDValue	N,
		SDValue &	Imm
	)

inline

Definition at line 152 of file RISCVISelDAGToDAG.h.

References N, and selectRVVSimm5().

◆ selectRVVSimm5() [2/2]

bool RISCVDAGToDAGISel::selectRVVSimm5	(	SDValue	N,
		unsigned	Width,
		SDValue &	Imm
	)

Definition at line 4200 of file RISCVISelDAGToDAG.cpp.

References llvm::CallingConv::C, llvm::SelectionDAGISel::CurDAG, llvm::SelectionDAG::getSignedTargetConstant(), llvm::RISCVSubtarget::getXLenVT(), N, and llvm::SignExtend64().

Referenced by selectRVVSimm5().

◆ selectScalarFPAsInt()

bool RISCVDAGToDAGISel::selectScalarFPAsInt	(	SDValue	N,
		SDValue &	Imm
	)

Definition at line 4164 of file RISCVISelDAGToDAG.cpp.

References assert(), llvm::ISD::BITCAST, llvm::APFloat::bitcastToAPInt(), llvm::SelectionDAGISel::CurDAG, DL, llvm::APInt::getSExtValue(), llvm::SDNode::getSimpleValueType(), llvm::ConstantFPSDNode::getValueAPF(), llvm::RISCVSubtarget::getXLenVT(), llvm::RISCVSubtarget::is64Bit(), llvm::APFloat::isNegZero(), llvm::APFloat::isPosZero(), N, and selectImm().

◆ selectSETCC()

bool RISCVDAGToDAGISel::selectSETCC	(	SDValue	N,
		ISD::CondCode	ExpectedCCVal,
		SDValue &	Val
	)

RISC-V doesn't have general instructions for integer setne/seteq, but we can check for equality with 0.

This function emits instructions that convert the seteq/setne into something that can be compared with 0. ExpectedCCVal indicates the condition code to attempt to match (e.g. ISD::SETNE).

Definition at line 3387 of file RISCVISelDAGToDAG.cpp.

References assert(), llvm::CallingConv::C, llvm::SelectionDAGISel::CurDAG, DL, llvm::SelectionDAG::getMachineNode(), llvm::SelectionDAG::getSignedTargetConstant(), llvm::SelectionDAG::getTargetConstant(), llvm::ISD::isIntEqualitySetCC(), llvm::isNullConstant(), llvm::isPowerOf2_64(), LHS, llvm::Log2_64(), N, RHS, and llvm::ISD::SETCC.