This is used to represent a portion of an LLVM function in a low-level Data Dependence DAG representation suitable for instruction selection. More...

#include "llvm/CodeGen/SelectionDAG.h"

Classes
struct	DAGNodeDeletedListener

struct	DAGNodeInsertedListener

struct	DAGUpdateListener
	Clients of various APIs that cause global effects on the DAG can optionally implement this interface. More...

class	FlagInserter
	Help to insert SDNodeFlags automatically in transforming. More...

Public Types
enum	OverflowKind { OFK_Never , OFK_Sometime , OFK_Always }
	Used to represent the possible overflow behavior of an operation. More...

using	allnodes_const_iterator = ilist< SDNode >::const_iterator

using	allnodes_iterator = ilist< SDNode >::iterator

Public Member Functions
	SelectionDAG (const TargetMachine &TM, CodeGenOptLevel)

	SelectionDAG (const SelectionDAG &)=delete

SelectionDAG &	operator= (const SelectionDAG &)=delete

	~SelectionDAG ()

void	init (MachineFunction &NewMF, OptimizationRemarkEmitter &NewORE, Pass PassPtr, const TargetLibraryInfo LibraryInfo, UniformityInfo UA, ProfileSummaryInfo PSIin, BlockFrequencyInfo BFIin, MachineModuleInfo &MMI, FunctionVarLocs const FnVarLocs)
	Prepare this SelectionDAG to process code in the given MachineFunction.

void	init (MachineFunction &NewMF, OptimizationRemarkEmitter &NewORE, MachineFunctionAnalysisManager &AM, const TargetLibraryInfo LibraryInfo, UniformityInfo UA, ProfileSummaryInfo PSIin, BlockFrequencyInfo BFIin, MachineModuleInfo &MMI, FunctionVarLocs const *FnVarLocs)

void	setFunctionLoweringInfo (FunctionLoweringInfo *FuncInfo)

void	clear ()
	Clear state and free memory necessary to make this SelectionDAG ready to process a new block.

MachineFunction &	getMachineFunction () const

const Pass *	getPass () const

MachineFunctionAnalysisManager *	getMFAM ()

CodeGenOptLevel	getOptLevel () const

const DataLayout &	getDataLayout () const

const TargetMachine &	getTarget () const

const TargetSubtargetInfo &	getSubtarget () const

template<typename STC >
const STC &	getSubtarget () const

const TargetLowering &	getTargetLoweringInfo () const

const TargetLibraryInfo &	getLibInfo () const

const SelectionDAGTargetInfo &	getSelectionDAGInfo () const

const UniformityInfo *	getUniformityInfo () const

const FunctionVarLocs *	getFunctionVarLocs () const
	Returns the result of the AssignmentTrackingAnalysis pass if it's available, otherwise return nullptr.

LLVMContext *	getContext () const

OptimizationRemarkEmitter &	getORE () const

ProfileSummaryInfo *	getPSI () const

BlockFrequencyInfo *	getBFI () const

MachineModuleInfo *	getMMI () const

FlagInserter *	getFlagInserter ()

void	setFlagInserter (FlagInserter *FI)

LLVM_DUMP_METHOD void	dumpDotGraph (const Twine &FileName, const Twine &Title)
	Just dump dot graph to a user-provided path and title.

void	viewGraph (const std::string &Title)
	Pop up a GraphViz/gv window with the DAG rendered using 'dot'.

void	viewGraph ()

void	clearGraphAttrs ()
	Clear all previously defined node graph attributes.

void	setGraphAttrs (const SDNode N, const char Attrs)
	Set graph attributes for a node. (eg. "color=red".)

std::string	getGraphAttrs (const SDNode *N) const
	Get graph attributes for a node.

void	setGraphColor (const SDNode N, const char Color)
	Convenience for setting node color attribute.

void	setSubgraphColor (SDNode N, const char Color)
	Convenience for setting subgraph color attribute.

allnodes_const_iterator	allnodes_begin () const

allnodes_const_iterator	allnodes_end () const

allnodes_iterator	allnodes_begin ()

allnodes_iterator	allnodes_end ()

ilist< SDNode >::size_type	allnodes_size () const

iterator_range< allnodes_iterator >	allnodes ()

iterator_range< allnodes_const_iterator >	allnodes () const

const SDValue &	getRoot () const
	Return the root tag of the SelectionDAG.

SDValue	getEntryNode () const
	Return the token chain corresponding to the entry of the function.

const SDValue &	setRoot (SDValue N)
	Set the current root tag of the SelectionDAG.

void	Combine (CombineLevel Level, AAResults *AA, CodeGenOptLevel OptLevel)
	This iterates over the nodes in the SelectionDAG, folding certain types of nodes together, or eliminating superfluous nodes.

bool	LegalizeTypes ()
	This transforms the SelectionDAG into a SelectionDAG that only uses types natively supported by the target.

void	Legalize ()
	This transforms the SelectionDAG into a SelectionDAG that is compatible with the target instruction selector, as indicated by the TargetLowering object.

bool	LegalizeOp (SDNode N, SmallSetVector< SDNode , 16 > &UpdatedNodes)
	Transforms a SelectionDAG node and any operands to it into a node that is compatible with the target instruction selector, as indicated by the TargetLowering object.

bool	LegalizeVectors ()
	This transforms the SelectionDAG into a SelectionDAG that only uses vector math operations supported by the target.

void	RemoveDeadNodes ()
	This method deletes all unreachable nodes in the SelectionDAG.

void	DeleteNode (SDNode *N)
	Remove the specified node from the system.

SDVTList	getVTList (EVT VT)
	Return an SDVTList that represents the list of values specified.

SDVTList	getVTList (EVT VT1, EVT VT2)

SDVTList	getVTList (EVT VT1, EVT VT2, EVT VT3)

SDVTList	getVTList (EVT VT1, EVT VT2, EVT VT3, EVT VT4)

SDVTList	getVTList (ArrayRef< EVT > VTs)

SDValue	getGlobalAddress (const GlobalValue *GV, const SDLoc &DL, EVT VT, int64_t offset=0, bool isTargetGA=false, unsigned TargetFlags=0)

SDValue	getTargetGlobalAddress (const GlobalValue *GV, const SDLoc &DL, EVT VT, int64_t offset=0, unsigned TargetFlags=0)

SDValue	getFrameIndex (int FI, EVT VT, bool isTarget=false)

SDValue	getTargetFrameIndex (int FI, EVT VT)

SDValue	getJumpTable (int JTI, EVT VT, bool isTarget=false, unsigned TargetFlags=0)

SDValue	getTargetJumpTable (int JTI, EVT VT, unsigned TargetFlags=0)

SDValue	getJumpTableDebugInfo (int JTI, SDValue Chain, const SDLoc &DL)

SDValue	getConstantPool (const Constant *C, EVT VT, MaybeAlign Align=std::nullopt, int Offs=0, bool isT=false, unsigned TargetFlags=0)

SDValue	getTargetConstantPool (const Constant *C, EVT VT, MaybeAlign Align=std::nullopt, int Offset=0, unsigned TargetFlags=0)

SDValue	getConstantPool (MachineConstantPoolValue *C, EVT VT, MaybeAlign Align=std::nullopt, int Offs=0, bool isT=false, unsigned TargetFlags=0)

SDValue	getTargetConstantPool (MachineConstantPoolValue *C, EVT VT, MaybeAlign Align=std::nullopt, int Offset=0, unsigned TargetFlags=0)

SDValue	getBasicBlock (MachineBasicBlock *MBB)

SDValue	getExternalSymbol (const char *Sym, EVT VT)

SDValue	getTargetExternalSymbol (const char *Sym, EVT VT, unsigned TargetFlags=0)

SDValue	getMCSymbol (MCSymbol *Sym, EVT VT)

SDValue	getValueType (EVT)

SDValue	getRegister (Register Reg, EVT VT)

SDValue	getRegisterMask (const uint32_t *RegMask)

SDValue	getEHLabel (const SDLoc &dl, SDValue Root, MCSymbol *Label)

SDValue	getLabelNode (unsigned Opcode, const SDLoc &dl, SDValue Root, MCSymbol *Label)

SDValue	getBlockAddress (const BlockAddress *BA, EVT VT, int64_t Offset=0, bool isTarget=false, unsigned TargetFlags=0)

SDValue	getTargetBlockAddress (const BlockAddress *BA, EVT VT, int64_t Offset=0, unsigned TargetFlags=0)

SDValue	getCopyToReg (SDValue Chain, const SDLoc &dl, Register Reg, SDValue N)

SDValue	getCopyToReg (SDValue Chain, const SDLoc &dl, Register Reg, SDValue N, SDValue Glue)

SDValue	getCopyToReg (SDValue Chain, const SDLoc &dl, SDValue Reg, SDValue N, SDValue Glue)

SDValue	getCopyFromReg (SDValue Chain, const SDLoc &dl, Register Reg, EVT VT)

SDValue	getCopyFromReg (SDValue Chain, const SDLoc &dl, Register Reg, EVT VT, SDValue Glue)

SDValue	getCondCode (ISD::CondCode Cond)

SDValue	getVectorShuffle (EVT VT, const SDLoc &dl, SDValue N1, SDValue N2, ArrayRef< int > Mask)
	Return an ISD::VECTOR_SHUFFLE node.

SDValue	getBuildVector (EVT VT, const SDLoc &DL, ArrayRef< SDValue > Ops)
	Return an ISD::BUILD_VECTOR node.

SDValue	getBuildVector (EVT VT, const SDLoc &DL, ArrayRef< SDUse > Ops)
	Return an ISD::BUILD_VECTOR node.

SDValue	getSplatBuildVector (EVT VT, const SDLoc &DL, SDValue Op)
	Return a splat ISD::BUILD_VECTOR node, consisting of Op splatted to all elements.

SDValue	getSplatVector (EVT VT, const SDLoc &DL, SDValue Op)

SDValue	getSplat (EVT VT, const SDLoc &DL, SDValue Op)
	Returns a node representing a splat of one value into all lanes of the provided vector type.

SDValue	getStepVector (const SDLoc &DL, EVT ResVT, const APInt &StepVal)
	Returns a vector of type ResVT whose elements contain the linear sequence <0, Step, Step * 2, Step * 3, ...>

SDValue	getStepVector (const SDLoc &DL, EVT ResVT)
	Returns a vector of type ResVT whose elements contain the linear sequence <0, 1, 2, 3, ...>

SDValue	getCommutedVectorShuffle (const ShuffleVectorSDNode &SV)
	Returns an ISD::VECTOR_SHUFFLE node semantically equivalent to the shuffle node in input but with swapped operands.

SDValue	getFPExtendOrRound (SDValue Op, const SDLoc &DL, EVT VT)
	Convert Op, which must be of float type, to the float type VT, by either extending or rounding (by truncation).

std::pair< SDValue, SDValue >	getStrictFPExtendOrRound (SDValue Op, SDValue Chain, const SDLoc &DL, EVT VT)
	Convert Op, which must be a STRICT operation of float type, to the float type VT, by either extending or rounding (by truncation).

SDValue	getAnyExtOrTrunc (SDValue Op, const SDLoc &DL, EVT VT)
	Convert Op, which must be of integer type, to the integer type VT, by either any-extending or truncating it.

SDValue	getSExtOrTrunc (SDValue Op, const SDLoc &DL, EVT VT)
	Convert Op, which must be of integer type, to the integer type VT, by either sign-extending or truncating it.

SDValue	getZExtOrTrunc (SDValue Op, const SDLoc &DL, EVT VT)
	Convert Op, which must be of integer type, to the integer type VT, by either zero-extending or truncating it.

SDValue	getExtOrTrunc (SDValue Op, const SDLoc &DL, EVT VT, unsigned Opcode)
	Convert Op, which must be of integer type, to the integer type VT, by either any/sign/zero-extending (depending on IsAny / IsSigned) or truncating it.

SDValue	getExtOrTrunc (bool IsSigned, SDValue Op, const SDLoc &DL, EVT VT)
	Convert Op, which must be of integer type, to the integer type VT, by either sign/zero-extending (depending on IsSigned) or truncating it.

SDValue	getBitcastedAnyExtOrTrunc (SDValue Op, const SDLoc &DL, EVT VT)
	Convert Op, which must be of integer type, to the integer type VT, by first bitcasting (from potential vector) to corresponding scalar type then either any-extending or truncating it.

SDValue	getBitcastedSExtOrTrunc (SDValue Op, const SDLoc &DL, EVT VT)
	Convert Op, which must be of integer type, to the integer type VT, by first bitcasting (from potential vector) to corresponding scalar type then either sign-extending or truncating it.

SDValue	getBitcastedZExtOrTrunc (SDValue Op, const SDLoc &DL, EVT VT)
	Convert Op, which must be of integer type, to the integer type VT, by first bitcasting (from potential vector) to corresponding scalar type then either zero-extending or truncating it.

SDValue	getZeroExtendInReg (SDValue Op, const SDLoc &DL, EVT VT)
	Return the expression required to zero extend the Op value assuming it was the smaller SrcTy value.

SDValue	getVPZeroExtendInReg (SDValue Op, SDValue Mask, SDValue EVL, const SDLoc &DL, EVT VT)
	Return the expression required to zero extend the Op value assuming it was the smaller SrcTy value.

SDValue	getPtrExtOrTrunc (SDValue Op, const SDLoc &DL, EVT VT)
	Convert Op, which must be of integer type, to the integer type VT, by either truncating it or performing either zero or sign extension as appropriate extension for the pointer's semantics.

SDValue	getPtrExtendInReg (SDValue Op, const SDLoc &DL, EVT VT)
	Return the expression required to extend the Op as a pointer value assuming it was the smaller SrcTy value.

SDValue	getBoolExtOrTrunc (SDValue Op, const SDLoc &SL, EVT VT, EVT OpVT)
	Convert Op, which must be of integer type, to the integer type VT, by using an extension appropriate for the target's BooleanContent for type OpVT or truncating it.

SDValue	getNegative (SDValue Val, const SDLoc &DL, EVT VT)
	Create negative operation as (SUB 0, Val).

SDValue	getNOT (const SDLoc &DL, SDValue Val, EVT VT)
	Create a bitwise NOT operation as (XOR Val, -1).

SDValue	getLogicalNOT (const SDLoc &DL, SDValue Val, EVT VT)
	Create a logical NOT operation as (XOR Val, BooleanOne).

SDValue	getVPLogicalNOT (const SDLoc &DL, SDValue Val, SDValue Mask, SDValue EVL, EVT VT)
	Create a vector-predicated logical NOT operation as (VP_XOR Val, BooleanOne, Mask, EVL).

SDValue	getVPZExtOrTrunc (const SDLoc &DL, EVT VT, SDValue Op, SDValue Mask, SDValue EVL)
	Convert a vector-predicated Op, which must be an integer vector, to the vector-type VT, by performing either vector-predicated zext or truncating it.

SDValue	getVPPtrExtOrTrunc (const SDLoc &DL, EVT VT, SDValue Op, SDValue Mask, SDValue EVL)
	Convert a vector-predicated Op, which must be of integer type, to the vector-type integer type VT, by either truncating it or performing either vector-predicated zero or sign extension as appropriate extension for the pointer's semantics.

SDValue	getMemBasePlusOffset (SDValue Base, TypeSize Offset, const SDLoc &DL, const SDNodeFlags Flags=SDNodeFlags())
	Returns sum of the base pointer and offset.

SDValue	getMemBasePlusOffset (SDValue Base, SDValue Offset, const SDLoc &DL, const SDNodeFlags Flags=SDNodeFlags())

SDValue	getObjectPtrOffset (const SDLoc &SL, SDValue Ptr, TypeSize Offset)
	Create an add instruction with appropriate flags when used for addressing some offset of an object.

SDValue	getObjectPtrOffset (const SDLoc &SL, SDValue Ptr, SDValue Offset)

SDValue	getCALLSEQ_START (SDValue Chain, uint64_t InSize, uint64_t OutSize, const SDLoc &DL)
	Return a new CALLSEQ_START node, that starts new call frame, in which InSize bytes are set up inside CALLSEQ_START..CALLSEQ_END sequence and OutSize specifies part of the frame set up prior to the sequence.

SDValue	getCALLSEQ_END (SDValue Chain, SDValue Op1, SDValue Op2, SDValue InGlue, const SDLoc &DL)
	Return a new CALLSEQ_END node, which always must have a glue result (to ensure it's not CSE'd).

SDValue	getCALLSEQ_END (SDValue Chain, uint64_t Size1, uint64_t Size2, SDValue Glue, const SDLoc &DL)

bool	isUndef (unsigned Opcode, ArrayRef< SDValue > Ops)
	Return true if the result of this operation is always undefined.

SDValue	getUNDEF (EVT VT)
	Return an UNDEF node. UNDEF does not have a useful SDLoc.

SDValue	getVScale (const SDLoc &DL, EVT VT, APInt MulImm, bool ConstantFold=true)
	Return a node that represents the runtime scaling 'MulImm * RuntimeVL'.

SDValue	getElementCount (const SDLoc &DL, EVT VT, ElementCount EC, bool ConstantFold=true)

SDValue	getGLOBAL_OFFSET_TABLE (EVT VT)
	Return a GLOBAL_OFFSET_TABLE node. This does not have a useful SDLoc.

SDValue	getNode (unsigned Opcode, const SDLoc &DL, EVT VT, ArrayRef< SDUse > Ops)
	Gets or creates the specified node.

SDValue	getNode (unsigned Opcode, const SDLoc &DL, EVT VT, ArrayRef< SDValue > Ops, const SDNodeFlags Flags)

SDValue	getNode (unsigned Opcode, const SDLoc &DL, ArrayRef< EVT > ResultTys, ArrayRef< SDValue > Ops)

SDValue	getNode (unsigned Opcode, const SDLoc &DL, SDVTList VTList, ArrayRef< SDValue > Ops, const SDNodeFlags Flags)

SDValue	getNode (unsigned Opcode, const SDLoc &DL, EVT VT, ArrayRef< SDValue > Ops)

SDValue	getNode (unsigned Opcode, const SDLoc &DL, SDVTList VTList, ArrayRef< SDValue > Ops)

SDValue	getNode (unsigned Opcode, const SDLoc &DL, EVT VT, SDValue Operand)

SDValue	getNode (unsigned Opcode, const SDLoc &DL, EVT VT, SDValue N1, SDValue N2)

SDValue	getNode (unsigned Opcode, const SDLoc &DL, EVT VT, SDValue N1, SDValue N2, SDValue N3)

SDValue	getNode (unsigned Opcode, const SDLoc &DL, EVT VT)
	Gets or creates the specified node.

SDValue	getNode (unsigned Opcode, const SDLoc &DL, EVT VT, SDValue Operand, const SDNodeFlags Flags)

SDValue	getNode (unsigned Opcode, const SDLoc &DL, EVT VT, SDValue N1, SDValue N2, const SDNodeFlags Flags)

SDValue	getNode (unsigned Opcode, const SDLoc &DL, EVT VT, SDValue N1, SDValue N2, SDValue N3, const SDNodeFlags Flags)

SDValue	getNode (unsigned Opcode, const SDLoc &DL, EVT VT, SDValue N1, SDValue N2, SDValue N3, SDValue N4)

SDValue	getNode (unsigned Opcode, const SDLoc &DL, EVT VT, SDValue N1, SDValue N2, SDValue N3, SDValue N4, const SDNodeFlags Flags)

SDValue	getNode (unsigned Opcode, const SDLoc &DL, EVT VT, SDValue N1, SDValue N2, SDValue N3, SDValue N4, SDValue N5)

SDValue	getNode (unsigned Opcode, const SDLoc &DL, EVT VT, SDValue N1, SDValue N2, SDValue N3, SDValue N4, SDValue N5, const SDNodeFlags Flags)

SDValue	getNode (unsigned Opcode, const SDLoc &DL, SDVTList VTList)

SDValue	getNode (unsigned Opcode, const SDLoc &DL, SDVTList VTList, SDValue N)

SDValue	getNode (unsigned Opcode, const SDLoc &DL, SDVTList VTList, SDValue N1, SDValue N2)

SDValue	getNode (unsigned Opcode, const SDLoc &DL, SDVTList VTList, SDValue N1, SDValue N2, SDValue N3)

SDValue	getNode (unsigned Opcode, const SDLoc &DL, SDVTList VTList, SDValue N1, SDValue N2, SDValue N3, SDValue N4)

SDValue	getNode (unsigned Opcode, const SDLoc &DL, SDVTList VTList, SDValue N1, SDValue N2, SDValue N3, SDValue N4, SDValue N5)

SDValue	getStackArgumentTokenFactor (SDValue Chain)
	Compute a TokenFactor to force all the incoming stack arguments to be loaded from the stack.

SDValue	getMemcpy (SDValue Chain, const SDLoc &dl, SDValue Dst, SDValue Src, SDValue Size, Align Alignment, bool isVol, bool AlwaysInline, const CallInst CI, std::optional< bool > OverrideTailCall, MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo, const AAMDNodes &AAInfo=AAMDNodes(), AAResults AA=nullptr)

SDValue	getMemmove (SDValue Chain, const SDLoc &dl, SDValue Dst, SDValue Src, SDValue Size, Align Alignment, bool isVol, const CallInst CI, std::optional< bool > OverrideTailCall, MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo, const AAMDNodes &AAInfo=AAMDNodes(), AAResults AA=nullptr)

SDValue	getMemset (SDValue Chain, const SDLoc &dl, SDValue Dst, SDValue Src, SDValue Size, Align Alignment, bool isVol, bool AlwaysInline, const CallInst *CI, MachinePointerInfo DstPtrInfo, const AAMDNodes &AAInfo=AAMDNodes())

SDValue	getAtomicMemcpy (SDValue Chain, const SDLoc &dl, SDValue Dst, SDValue Src, SDValue Size, Type *SizeTy, unsigned ElemSz, bool isTailCall, MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo)

SDValue	getAtomicMemmove (SDValue Chain, const SDLoc &dl, SDValue Dst, SDValue Src, SDValue Size, Type *SizeTy, unsigned ElemSz, bool isTailCall, MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo)

SDValue	getAtomicMemset (SDValue Chain, const SDLoc &dl, SDValue Dst, SDValue Value, SDValue Size, Type *SizeTy, unsigned ElemSz, bool isTailCall, MachinePointerInfo DstPtrInfo)

SDValue	getSetCC (const SDLoc &DL, EVT VT, SDValue LHS, SDValue RHS, ISD::CondCode Cond, SDValue Chain=SDValue(), bool IsSignaling=false)
	Helper function to make it easier to build SetCC's if you just have an ISD::CondCode instead of an SDValue.

SDValue	getSetCCVP (const SDLoc &DL, EVT VT, SDValue LHS, SDValue RHS, ISD::CondCode Cond, SDValue Mask, SDValue EVL)
	Helper function to make it easier to build VP_SETCCs if you just have an ISD::CondCode instead of an SDValue.

SDValue	getSelect (const SDLoc &DL, EVT VT, SDValue Cond, SDValue LHS, SDValue RHS, SDNodeFlags Flags=SDNodeFlags())
	Helper function to make it easier to build Select's if you just have operands and don't want to check for vector.

SDValue	getSelectCC (const SDLoc &DL, SDValue LHS, SDValue RHS, SDValue True, SDValue False, ISD::CondCode Cond)
	Helper function to make it easier to build SelectCC's if you just have an ISD::CondCode instead of an SDValue.

SDValue	simplifySelect (SDValue Cond, SDValue TVal, SDValue FVal)
	Try to simplify a select/vselect into 1 of its operands or a constant.

SDValue	simplifyShift (SDValue X, SDValue Y)
	Try to simplify a shift into 1 of its operands or a constant.

SDValue	simplifyFPBinop (unsigned Opcode, SDValue X, SDValue Y, SDNodeFlags Flags)
	Try to simplify a floating-point binary operation into 1 of its operands or a constant.

SDValue	getVAArg (EVT VT, const SDLoc &dl, SDValue Chain, SDValue Ptr, SDValue SV, unsigned Align)
	VAArg produces a result and token chain, and takes a pointer and a source value as input.

SDValue	getAtomicCmpSwap (unsigned Opcode, const SDLoc &dl, EVT MemVT, SDVTList VTs, SDValue Chain, SDValue Ptr, SDValue Cmp, SDValue Swp, MachineMemOperand *MMO)
	Gets a node for an atomic cmpxchg op.

SDValue	getAtomic (unsigned Opcode, const SDLoc &dl, EVT MemVT, SDValue Chain, SDValue Ptr, SDValue Val, MachineMemOperand *MMO)
	Gets a node for an atomic op, produces result (if relevant) and chain and takes 2 operands.

SDValue	getAtomic (unsigned Opcode, const SDLoc &dl, EVT MemVT, EVT VT, SDValue Chain, SDValue Ptr, MachineMemOperand *MMO)
	Gets a node for an atomic op, produces result and chain and takes 1 operand.

SDValue	getAtomic (unsigned Opcode, const SDLoc &dl, EVT MemVT, SDVTList VTList, ArrayRef< SDValue > Ops, MachineMemOperand *MMO)
	Gets a node for an atomic op, produces result and chain and takes N operands.

SDValue	getMemIntrinsicNode (unsigned Opcode, const SDLoc &dl, SDVTList VTList, ArrayRef< SDValue > Ops, EVT MemVT, MachinePointerInfo PtrInfo, Align Alignment, MachineMemOperand::Flags Flags=MachineMemOperand::MOLoad\|MachineMemOperand::MOStore, LocationSize Size=0, const AAMDNodes &AAInfo=AAMDNodes())
	Creates a MemIntrinsicNode that may produce a result and takes a list of operands.

SDValue	getMemIntrinsicNode (unsigned Opcode, const SDLoc &dl, SDVTList VTList, ArrayRef< SDValue > Ops, EVT MemVT, MachinePointerInfo PtrInfo, MaybeAlign Alignment=std::nullopt, MachineMemOperand::Flags Flags=MachineMemOperand::MOLoad\|MachineMemOperand::MOStore, LocationSize Size=0, const AAMDNodes &AAInfo=AAMDNodes())

SDValue	getMemIntrinsicNode (unsigned Opcode, const SDLoc &dl, SDVTList VTList, ArrayRef< SDValue > Ops, EVT MemVT, MachineMemOperand *MMO)

SDValue	getLifetimeNode (bool IsStart, const SDLoc &dl, SDValue Chain, int FrameIndex, int64_t Size, int64_t Offset=-1)
	Creates a LifetimeSDNode that starts (`IsStart==true`) or ends (`IsStart==false`) the lifetime of the portion of `FrameIndex` between offsets `Offset` and `Offset + Size`.

SDValue	getPseudoProbeNode (const SDLoc &Dl, SDValue Chain, uint64_t Guid, uint64_t Index, uint32_t Attr)
	Creates a PseudoProbeSDNode with function GUID `Guid` and the index of the block `Index` it is probing, as well as the attributes `attr` of the probe.

SDValue	getMergeValues (ArrayRef< SDValue > Ops, const SDLoc &dl)
	Create a MERGE_VALUES node from the given operands.

SDValue	getLoad (EVT VT, const SDLoc &dl, SDValue Chain, SDValue Ptr, MachinePointerInfo PtrInfo, MaybeAlign Alignment=MaybeAlign(), MachineMemOperand::Flags MMOFlags=MachineMemOperand::MONone, const AAMDNodes &AAInfo=AAMDNodes(), const MDNode *Ranges=nullptr)
	Loads are not normal binary operators: their result type is not determined by their operands, and they produce a value AND a token chain.

SDValue	getLoad (EVT VT, const SDLoc &dl, SDValue Chain, SDValue Ptr, MachineMemOperand *MMO)

SDValue	getExtLoad (ISD::LoadExtType ExtType, const SDLoc &dl, EVT VT, SDValue Chain, SDValue Ptr, MachinePointerInfo PtrInfo, EVT MemVT, MaybeAlign Alignment=MaybeAlign(), MachineMemOperand::Flags MMOFlags=MachineMemOperand::MONone, const AAMDNodes &AAInfo=AAMDNodes())

SDValue	getExtLoad (ISD::LoadExtType ExtType, const SDLoc &dl, EVT VT, SDValue Chain, SDValue Ptr, EVT MemVT, MachineMemOperand *MMO)

SDValue	getIndexedLoad (SDValue OrigLoad, const SDLoc &dl, SDValue Base, SDValue Offset, ISD::MemIndexedMode AM)

SDValue	getLoad (ISD::MemIndexedMode AM, ISD::LoadExtType ExtType, EVT VT, const SDLoc &dl, SDValue Chain, SDValue Ptr, SDValue Offset, MachinePointerInfo PtrInfo, EVT MemVT, Align Alignment, MachineMemOperand::Flags MMOFlags=MachineMemOperand::MONone, const AAMDNodes &AAInfo=AAMDNodes(), const MDNode *Ranges=nullptr)

SDValue	getLoad (ISD::MemIndexedMode AM, ISD::LoadExtType ExtType, EVT VT, const SDLoc &dl, SDValue Chain, SDValue Ptr, SDValue Offset, MachinePointerInfo PtrInfo, EVT MemVT, MaybeAlign Alignment=MaybeAlign(), MachineMemOperand::Flags MMOFlags=MachineMemOperand::MONone, const AAMDNodes &AAInfo=AAMDNodes(), const MDNode *Ranges=nullptr)

SDValue	getLoad (ISD::MemIndexedMode AM, ISD::LoadExtType ExtType, EVT VT, const SDLoc &dl, SDValue Chain, SDValue Ptr, SDValue Offset, EVT MemVT, MachineMemOperand *MMO)

SDValue	getStore (SDValue Chain, const SDLoc &dl, SDValue Val, SDValue Ptr, MachinePointerInfo PtrInfo, Align Alignment, MachineMemOperand::Flags MMOFlags=MachineMemOperand::MONone, const AAMDNodes &AAInfo=AAMDNodes())
	Helper function to build ISD::STORE nodes.

SDValue	getStore (SDValue Chain, const SDLoc &dl, SDValue Val, SDValue Ptr, MachinePointerInfo PtrInfo, MaybeAlign Alignment=MaybeAlign(), MachineMemOperand::Flags MMOFlags=MachineMemOperand::MONone, const AAMDNodes &AAInfo=AAMDNodes())

SDValue	getStore (SDValue Chain, const SDLoc &dl, SDValue Val, SDValue Ptr, MachineMemOperand *MMO)

SDValue	getTruncStore (SDValue Chain, const SDLoc &dl, SDValue Val, SDValue Ptr, MachinePointerInfo PtrInfo, EVT SVT, Align Alignment, MachineMemOperand::Flags MMOFlags=MachineMemOperand::MONone, const AAMDNodes &AAInfo=AAMDNodes())

SDValue	getTruncStore (SDValue Chain, const SDLoc &dl, SDValue Val, SDValue Ptr, MachinePointerInfo PtrInfo, EVT SVT, MaybeAlign Alignment=MaybeAlign(), MachineMemOperand::Flags MMOFlags=MachineMemOperand::MONone, const AAMDNodes &AAInfo=AAMDNodes())

SDValue	getTruncStore (SDValue Chain, const SDLoc &dl, SDValue Val, SDValue Ptr, EVT SVT, MachineMemOperand *MMO)

SDValue	getIndexedStore (SDValue OrigStore, const SDLoc &dl, SDValue Base, SDValue Offset, ISD::MemIndexedMode AM)

SDValue	getLoadVP (ISD::MemIndexedMode AM, ISD::LoadExtType ExtType, EVT VT, const SDLoc &dl, SDValue Chain, SDValue Ptr, SDValue Offset, SDValue Mask, SDValue EVL, MachinePointerInfo PtrInfo, EVT MemVT, Align Alignment, MachineMemOperand::Flags MMOFlags, const AAMDNodes &AAInfo, const MDNode *Ranges=nullptr, bool IsExpanding=false)

SDValue	getLoadVP (ISD::MemIndexedMode AM, ISD::LoadExtType ExtType, EVT VT, const SDLoc &dl, SDValue Chain, SDValue Ptr, SDValue Offset, SDValue Mask, SDValue EVL, MachinePointerInfo PtrInfo, EVT MemVT, MaybeAlign Alignment=MaybeAlign(), MachineMemOperand::Flags MMOFlags=MachineMemOperand::MONone, const AAMDNodes &AAInfo=AAMDNodes(), const MDNode *Ranges=nullptr, bool IsExpanding=false)

SDValue	getLoadVP (ISD::MemIndexedMode AM, ISD::LoadExtType ExtType, EVT VT, const SDLoc &dl, SDValue Chain, SDValue Ptr, SDValue Offset, SDValue Mask, SDValue EVL, EVT MemVT, MachineMemOperand *MMO, bool IsExpanding=false)

SDValue	getLoadVP (EVT VT, const SDLoc &dl, SDValue Chain, SDValue Ptr, SDValue Mask, SDValue EVL, MachinePointerInfo PtrInfo, MaybeAlign Alignment, MachineMemOperand::Flags MMOFlags, const AAMDNodes &AAInfo, const MDNode *Ranges=nullptr, bool IsExpanding=false)

SDValue	getLoadVP (EVT VT, const SDLoc &dl, SDValue Chain, SDValue Ptr, SDValue Mask, SDValue EVL, MachineMemOperand *MMO, bool IsExpanding=false)

SDValue	getExtLoadVP (ISD::LoadExtType ExtType, const SDLoc &dl, EVT VT, SDValue Chain, SDValue Ptr, SDValue Mask, SDValue EVL, MachinePointerInfo PtrInfo, EVT MemVT, MaybeAlign Alignment, MachineMemOperand::Flags MMOFlags, const AAMDNodes &AAInfo, bool IsExpanding=false)

SDValue	getExtLoadVP (ISD::LoadExtType ExtType, const SDLoc &dl, EVT VT, SDValue Chain, SDValue Ptr, SDValue Mask, SDValue EVL, EVT MemVT, MachineMemOperand *MMO, bool IsExpanding=false)

SDValue	getIndexedLoadVP (SDValue OrigLoad, const SDLoc &dl, SDValue Base, SDValue Offset, ISD::MemIndexedMode AM)

SDValue	getStoreVP (SDValue Chain, const SDLoc &dl, SDValue Val, SDValue Ptr, SDValue Offset, SDValue Mask, SDValue EVL, EVT MemVT, MachineMemOperand *MMO, ISD::MemIndexedMode AM, bool IsTruncating=false, bool IsCompressing=false)

SDValue	getTruncStoreVP (SDValue Chain, const SDLoc &dl, SDValue Val, SDValue Ptr, SDValue Mask, SDValue EVL, MachinePointerInfo PtrInfo, EVT SVT, Align Alignment, MachineMemOperand::Flags MMOFlags, const AAMDNodes &AAInfo, bool IsCompressing=false)

SDValue	getTruncStoreVP (SDValue Chain, const SDLoc &dl, SDValue Val, SDValue Ptr, SDValue Mask, SDValue EVL, EVT SVT, MachineMemOperand *MMO, bool IsCompressing=false)

SDValue	getIndexedStoreVP (SDValue OrigStore, const SDLoc &dl, SDValue Base, SDValue Offset, ISD::MemIndexedMode AM)

SDValue	getStridedLoadVP (ISD::MemIndexedMode AM, ISD::LoadExtType ExtType, EVT VT, const SDLoc &DL, SDValue Chain, SDValue Ptr, SDValue Offset, SDValue Stride, SDValue Mask, SDValue EVL, EVT MemVT, MachineMemOperand *MMO, bool IsExpanding=false)

SDValue	getStridedLoadVP (EVT VT, const SDLoc &DL, SDValue Chain, SDValue Ptr, SDValue Stride, SDValue Mask, SDValue EVL, MachineMemOperand *MMO, bool IsExpanding=false)

SDValue	getExtStridedLoadVP (ISD::LoadExtType ExtType, const SDLoc &DL, EVT VT, SDValue Chain, SDValue Ptr, SDValue Stride, SDValue Mask, SDValue EVL, EVT MemVT, MachineMemOperand *MMO, bool IsExpanding=false)

SDValue	getStridedStoreVP (SDValue Chain, const SDLoc &DL, SDValue Val, SDValue Ptr, SDValue Offset, SDValue Stride, SDValue Mask, SDValue EVL, EVT MemVT, MachineMemOperand *MMO, ISD::MemIndexedMode AM, bool IsTruncating=false, bool IsCompressing=false)

SDValue	getTruncStridedStoreVP (SDValue Chain, const SDLoc &DL, SDValue Val, SDValue Ptr, SDValue Stride, SDValue Mask, SDValue EVL, EVT SVT, MachineMemOperand *MMO, bool IsCompressing=false)

SDValue	getGatherVP (SDVTList VTs, EVT VT, const SDLoc &dl, ArrayRef< SDValue > Ops, MachineMemOperand *MMO, ISD::MemIndexType IndexType)

SDValue	getScatterVP (SDVTList VTs, EVT VT, const SDLoc &dl, ArrayRef< SDValue > Ops, MachineMemOperand *MMO, ISD::MemIndexType IndexType)

SDValue	getMaskedLoad (EVT VT, const SDLoc &dl, SDValue Chain, SDValue Base, SDValue Offset, SDValue Mask, SDValue Src0, EVT MemVT, MachineMemOperand *MMO, ISD::MemIndexedMode AM, ISD::LoadExtType, bool IsExpanding=false)

SDValue	getIndexedMaskedLoad (SDValue OrigLoad, const SDLoc &dl, SDValue Base, SDValue Offset, ISD::MemIndexedMode AM)

SDValue	getMaskedStore (SDValue Chain, const SDLoc &dl, SDValue Val, SDValue Base, SDValue Offset, SDValue Mask, EVT MemVT, MachineMemOperand *MMO, ISD::MemIndexedMode AM, bool IsTruncating=false, bool IsCompressing=false)

SDValue	getIndexedMaskedStore (SDValue OrigStore, const SDLoc &dl, SDValue Base, SDValue Offset, ISD::MemIndexedMode AM)

SDValue	getMaskedGather (SDVTList VTs, EVT MemVT, const SDLoc &dl, ArrayRef< SDValue > Ops, MachineMemOperand *MMO, ISD::MemIndexType IndexType, ISD::LoadExtType ExtTy)

SDValue	getMaskedScatter (SDVTList VTs, EVT MemVT, const SDLoc &dl, ArrayRef< SDValue > Ops, MachineMemOperand *MMO, ISD::MemIndexType IndexType, bool IsTruncating=false)

SDValue	getMaskedHistogram (SDVTList VTs, EVT MemVT, const SDLoc &dl, ArrayRef< SDValue > Ops, MachineMemOperand *MMO, ISD::MemIndexType IndexType)

SDValue	getGetFPEnv (SDValue Chain, const SDLoc &dl, SDValue Ptr, EVT MemVT, MachineMemOperand *MMO)

SDValue	getSetFPEnv (SDValue Chain, const SDLoc &dl, SDValue Ptr, EVT MemVT, MachineMemOperand *MMO)

SDValue	getSrcValue (const Value *v)
	Construct a node to track a Value* through the backend.

SDValue	getMDNode (const MDNode *MD)
	Return an MDNodeSDNode which holds an MDNode.

SDValue	getBitcast (EVT VT, SDValue V)
	Return a bitcast using the SDLoc of the value operand, and casting to the provided type.

SDValue	getAddrSpaceCast (const SDLoc &dl, EVT VT, SDValue Ptr, unsigned SrcAS, unsigned DestAS)
	Return an AddrSpaceCastSDNode.

SDValue	getFreeze (SDValue V)
	Return a freeze using the SDLoc of the value operand.

SDValue	getAssertAlign (const SDLoc &DL, SDValue V, Align A)
	Return an AssertAlignSDNode.

void	canonicalizeCommutativeBinop (unsigned Opcode, SDValue &N1, SDValue &N2) const
	Swap N1 and N2 if Opcode is a commutative binary opcode and the canonical form expects the opposite order.

SDValue	getShiftAmountOperand (EVT LHSTy, SDValue Op)
	Return the specified value casted to the target's desired shift amount type.

SDValue	getPartialReduceAdd (SDLoc DL, EVT ReducedTy, SDValue Op1, SDValue Op2)
	Create the DAG equivalent of vector_partial_reduce where Op1 and Op2 are its operands and ReducedTY is the intrinsic's return type.

bool	expandMultipleResultFPLibCall (RTLIB::Libcall LC, SDNode *Node, SmallVectorImpl< SDValue > &Results, std::optional< unsigned > CallRetResNo={})
	Expands a node with multiple results to an FP or vector libcall.

SDValue	expandVAArg (SDNode *Node)
	Expand the specified `ISD::VAARG` node as the Legalize pass would.

SDValue	expandVACopy (SDNode *Node)
	Expand the specified `ISD::VACOPY` node as the Legalize pass would.

SDValue	getSymbolFunctionGlobalAddress (SDValue Op, Function **TargetFunction=nullptr)
	Return a GlobalAddress of the function from the current module with name matching the given ExternalSymbol.

SDNode *	UpdateNodeOperands (SDNode *N, SDValue Op)
	Mutate the specified node in-place to have the specified operands.

SDNode *	UpdateNodeOperands (SDNode *N, SDValue Op1, SDValue Op2)

SDNode *	UpdateNodeOperands (SDNode *N, SDValue Op1, SDValue Op2, SDValue Op3)

SDNode *	UpdateNodeOperands (SDNode *N, SDValue Op1, SDValue Op2, SDValue Op3, SDValue Op4)

SDNode *	UpdateNodeOperands (SDNode *N, SDValue Op1, SDValue Op2, SDValue Op3, SDValue Op4, SDValue Op5)

SDNode *	UpdateNodeOperands (SDNode *N, ArrayRef< SDValue > Ops)

SDValue	getTokenFactor (const SDLoc &DL, SmallVectorImpl< SDValue > &Vals)
	Creates a new TokenFactor containing `Vals`.

void	setNodeMemRefs (MachineSDNode N, ArrayRef< MachineMemOperand > NewMemRefs)
	Mutate the specified machine node's memory references to the provided list.

bool	calculateDivergence (SDNode *N)

void	updateDivergence (SDNode *N)

SDNode *	SelectNodeTo (SDNode *N, unsigned MachineOpc, EVT VT)
	These are used for target selectors to mutate the specified node to have the specified return type, Target opcode, and operands.

SDNode *	SelectNodeTo (SDNode *N, unsigned MachineOpc, EVT VT, SDValue Op1)

SDNode *	SelectNodeTo (SDNode *N, unsigned MachineOpc, EVT VT, SDValue Op1, SDValue Op2)

SDNode *	SelectNodeTo (SDNode *N, unsigned MachineOpc, EVT VT, SDValue Op1, SDValue Op2, SDValue Op3)

SDNode *	SelectNodeTo (SDNode *N, unsigned MachineOpc, EVT VT, ArrayRef< SDValue > Ops)

SDNode *	SelectNodeTo (SDNode *N, unsigned MachineOpc, EVT VT1, EVT VT2)

SDNode *	SelectNodeTo (SDNode *N, unsigned MachineOpc, EVT VT1, EVT VT2, ArrayRef< SDValue > Ops)

SDNode *	SelectNodeTo (SDNode *N, unsigned MachineOpc, EVT VT1, EVT VT2, EVT VT3, ArrayRef< SDValue > Ops)

SDNode *	SelectNodeTo (SDNode *N, unsigned MachineOpc, EVT VT1, EVT VT2, SDValue Op1, SDValue Op2)

SDNode *	SelectNodeTo (SDNode *N, unsigned MachineOpc, SDVTList VTs, ArrayRef< SDValue > Ops)

SDNode *	MorphNodeTo (SDNode *N, unsigned Opc, SDVTList VTs, ArrayRef< SDValue > Ops)
	This mutates the specified node to have the specified return type, opcode, and operands.

SDNode *	mutateStrictFPToFP (SDNode *Node)
	Mutate the specified strict FP node to its non-strict equivalent, unlinking the node from its chain and dropping the metadata arguments.

MachineSDNode *	getMachineNode (unsigned Opcode, const SDLoc &dl, EVT VT)
	These are used for target selectors to create a new node with specified return type(s), MachineInstr opcode, and operands.

MachineSDNode *	getMachineNode (unsigned Opcode, const SDLoc &dl, EVT VT, SDValue Op1)

MachineSDNode *	getMachineNode (unsigned Opcode, const SDLoc &dl, EVT VT, SDValue Op1, SDValue Op2)

MachineSDNode *	getMachineNode (unsigned Opcode, const SDLoc &dl, EVT VT, SDValue Op1, SDValue Op2, SDValue Op3)

MachineSDNode *	getMachineNode (unsigned Opcode, const SDLoc &dl, EVT VT, ArrayRef< SDValue > Ops)

MachineSDNode *	getMachineNode (unsigned Opcode, const SDLoc &dl, EVT VT1, EVT VT2, SDValue Op1, SDValue Op2)

MachineSDNode *	getMachineNode (unsigned Opcode, const SDLoc &dl, EVT VT1, EVT VT2, SDValue Op1, SDValue Op2, SDValue Op3)

MachineSDNode *	getMachineNode (unsigned Opcode, const SDLoc &dl, EVT VT1, EVT VT2, ArrayRef< SDValue > Ops)

MachineSDNode *	getMachineNode (unsigned Opcode, const SDLoc &dl, EVT VT1, EVT VT2, EVT VT3, SDValue Op1, SDValue Op2)

MachineSDNode *	getMachineNode (unsigned Opcode, const SDLoc &dl, EVT VT1, EVT VT2, EVT VT3, SDValue Op1, SDValue Op2, SDValue Op3)

MachineSDNode *	getMachineNode (unsigned Opcode, const SDLoc &dl, EVT VT1, EVT VT2, EVT VT3, ArrayRef< SDValue > Ops)

MachineSDNode *	getMachineNode (unsigned Opcode, const SDLoc &dl, ArrayRef< EVT > ResultTys, ArrayRef< SDValue > Ops)

MachineSDNode *	getMachineNode (unsigned Opcode, const SDLoc &dl, SDVTList VTs, ArrayRef< SDValue > Ops)

SDValue	getTargetExtractSubreg (int SRIdx, const SDLoc &DL, EVT VT, SDValue Operand)
	A convenience function for creating TargetInstrInfo::EXTRACT_SUBREG nodes.

SDValue	getTargetInsertSubreg (int SRIdx, const SDLoc &DL, EVT VT, SDValue Operand, SDValue Subreg)
	A convenience function for creating TargetInstrInfo::INSERT_SUBREG nodes.

SDNode *	getNodeIfExists (unsigned Opcode, SDVTList VTList, ArrayRef< SDValue > Ops, const SDNodeFlags Flags)
	Get the specified node if it's already available, or else return NULL.

SDNode *	getNodeIfExists (unsigned Opcode, SDVTList VTList, ArrayRef< SDValue > Ops)
	getNodeIfExists - Get the specified node if it's already available, or else return NULL.

bool	doesNodeExist (unsigned Opcode, SDVTList VTList, ArrayRef< SDValue > Ops)
	Check if a node exists without modifying its flags.

SDDbgValue *	getDbgValue (DIVariable Var, DIExpression Expr, SDNode *N, unsigned R, bool IsIndirect, const DebugLoc &DL, unsigned O)
	Creates a SDDbgValue node.

SDDbgValue *	getConstantDbgValue (DIVariable Var, DIExpression Expr, const Value *C, const DebugLoc &DL, unsigned O)
	Creates a constant SDDbgValue node.

SDDbgValue *	getFrameIndexDbgValue (DIVariable Var, DIExpression Expr, unsigned FI, bool IsIndirect, const DebugLoc &DL, unsigned O)
	Creates a FrameIndex SDDbgValue node.

SDDbgValue *	getFrameIndexDbgValue (DIVariable Var, DIExpression Expr, unsigned FI, ArrayRef< SDNode * > Dependencies, bool IsIndirect, const DebugLoc &DL, unsigned O)
	Creates a FrameIndex SDDbgValue node.

SDDbgValue *	getVRegDbgValue (DIVariable Var, DIExpression Expr, unsigned VReg, bool IsIndirect, const DebugLoc &DL, unsigned O)
	Creates a VReg SDDbgValue node.

SDDbgValue *	getDbgValueList (DIVariable Var, DIExpression Expr, ArrayRef< SDDbgOperand > Locs, ArrayRef< SDNode * > Dependencies, bool IsIndirect, const DebugLoc &DL, unsigned O, bool IsVariadic)
	Creates a SDDbgValue node from a list of locations.

SDDbgLabel *	getDbgLabel (DILabel *Label, const DebugLoc &DL, unsigned O)
	Creates a SDDbgLabel node.

void	transferDbgValues (SDValue From, SDValue To, unsigned OffsetInBits=0, unsigned SizeInBits=0, bool InvalidateDbg=true)
	Transfer debug values from one node to another, while optionally generating fragment expressions for split-up values.

void	RemoveDeadNode (SDNode *N)
	Remove the specified node from the system.

void	RemoveDeadNodes (SmallVectorImpl< SDNode * > &DeadNodes)
	This method deletes the unreachable nodes in the given list, and any nodes that become unreachable as a result.

void	ReplaceAllUsesWith (SDValue From, SDValue To)
	Modify anything using 'From' to use 'To' instead.

void	ReplaceAllUsesWith (SDNode From, SDNode To)
	ReplaceAllUsesWith - Modify anything using 'From' to use 'To' instead.

void	ReplaceAllUsesWith (SDNode From, const SDValue To)
	ReplaceAllUsesWith - Modify anything using 'From' to use 'To' instead.

void	ReplaceAllUsesOfValueWith (SDValue From, SDValue To)
	Replace any uses of From with To, leaving uses of other values produced by From.getNode() alone.

void	ReplaceAllUsesOfValuesWith (const SDValue From, const SDValue To, unsigned Num)
	Like ReplaceAllUsesOfValueWith, but for multiple values at once.

SDValue	makeEquivalentMemoryOrdering (SDValue OldChain, SDValue NewMemOpChain)
	If an existing load has uses of its chain, create a token factor node with that chain and the new memory node's chain and update users of the old chain to the token factor.

SDValue	makeEquivalentMemoryOrdering (LoadSDNode *OldLoad, SDValue NewMemOp)
	If an existing load has uses of its chain, create a token factor node with that chain and the new memory node's chain and update users of the old chain to the token factor.

unsigned	AssignTopologicalOrder ()
	Topological-sort the AllNodes list and a assign a unique node id for each node in the DAG based on their topological order.

void	RepositionNode (allnodes_iterator Position, SDNode *N)
	Move node N in the AllNodes list to be immediately before the given iterator Position.

void	AddDbgValue (SDDbgValue *DB, bool isParameter)
	Add a dbg_value SDNode.

void	AddDbgLabel (SDDbgLabel *DB)
	Add a dbg_label SDNode.

ArrayRef< SDDbgValue * >	GetDbgValues (const SDNode *SD) const
	Get the debug values which reference the given SDNode.

bool	hasDebugValues () const
	Return true if there are any SDDbgValue nodes associated with this SelectionDAG.

SDDbgInfo::DbgIterator	DbgBegin () const

SDDbgInfo::DbgIterator	DbgEnd () const

SDDbgInfo::DbgIterator	ByvalParmDbgBegin () const

SDDbgInfo::DbgIterator	ByvalParmDbgEnd () const

SDDbgInfo::DbgLabelIterator	DbgLabelBegin () const

SDDbgInfo::DbgLabelIterator	DbgLabelEnd () const

void	salvageDebugInfo (SDNode &N)
	To be invoked on an SDNode that is slated to be erased.

void	dump () const

Align	getReducedAlign (EVT VT, bool UseABI)
	In most cases this function returns the ABI alignment for a given type, except for illegal vector types where the alignment exceeds that of the stack.

SDValue	CreateStackTemporary (TypeSize Bytes, Align Alignment)
	Create a stack temporary based on the size in bytes and the alignment.

SDValue	CreateStackTemporary (EVT VT, unsigned minAlign=1)
	Create a stack temporary, suitable for holding the specified value type.

SDValue	CreateStackTemporary (EVT VT1, EVT VT2)
	Create a stack temporary suitable for holding either of the specified value types.

SDValue	FoldSymbolOffset (unsigned Opcode, EVT VT, const GlobalAddressSDNode GA, const SDNode N2)

SDValue	FoldConstantArithmetic (unsigned Opcode, const SDLoc &DL, EVT VT, ArrayRef< SDValue > Ops, SDNodeFlags Flags=SDNodeFlags())

SDValue	foldConstantFPMath (unsigned Opcode, const SDLoc &DL, EVT VT, ArrayRef< SDValue > Ops)
	Fold floating-point operations when all operands are constants and/or undefined.

SDValue	FoldSetCC (EVT VT, SDValue N1, SDValue N2, ISD::CondCode Cond, const SDLoc &dl)
	Constant fold a setcc to true or false.

bool	SignBitIsZero (SDValue Op, unsigned Depth=0) const
	Return true if the sign bit of Op is known to be zero.

bool	MaskedValueIsZero (SDValue Op, const APInt &Mask, unsigned Depth=0) const
	Return true if 'Op & Mask' is known to be zero.

bool	MaskedValueIsZero (SDValue Op, const APInt &Mask, const APInt &DemandedElts, unsigned Depth=0) const
	Return true if 'Op & Mask' is known to be zero in DemandedElts.

bool	MaskedVectorIsZero (SDValue Op, const APInt &DemandedElts, unsigned Depth=0) const
	Return true if 'Op' is known to be zero in DemandedElts.

bool	MaskedValueIsAllOnes (SDValue Op, const APInt &Mask, unsigned Depth=0) const
	Return true if '(Op & Mask) == Mask'.

APInt	computeVectorKnownZeroElements (SDValue Op, const APInt &DemandedElts, unsigned Depth=0) const
	For each demanded element of a vector, see if it is known to be zero.

KnownBits	computeKnownBits (SDValue Op, unsigned Depth=0) const
	Determine which bits of Op are known to be either zero or one and return them in Known.

KnownBits	computeKnownBits (SDValue Op, const APInt &DemandedElts, unsigned Depth=0) const
	Determine which bits of Op are known to be either zero or one and return them in Known.

OverflowKind	computeOverflowForSignedAdd (SDValue N0, SDValue N1) const
	Determine if the result of the signed addition of 2 nodes can overflow.

OverflowKind	computeOverflowForUnsignedAdd (SDValue N0, SDValue N1) const
	Determine if the result of the unsigned addition of 2 nodes can overflow.

OverflowKind	computeOverflowForAdd (bool IsSigned, SDValue N0, SDValue N1) const
	Determine if the result of the addition of 2 nodes can overflow.

bool	willNotOverflowAdd (bool IsSigned, SDValue N0, SDValue N1) const
	Determine if the result of the addition of 2 nodes can never overflow.

OverflowKind	computeOverflowForSignedSub (SDValue N0, SDValue N1) const
	Determine if the result of the signed sub of 2 nodes can overflow.

OverflowKind	computeOverflowForUnsignedSub (SDValue N0, SDValue N1) const
	Determine if the result of the unsigned sub of 2 nodes can overflow.

OverflowKind	computeOverflowForSub (bool IsSigned, SDValue N0, SDValue N1) const
	Determine if the result of the sub of 2 nodes can overflow.

bool	willNotOverflowSub (bool IsSigned, SDValue N0, SDValue N1) const
	Determine if the result of the sub of 2 nodes can never overflow.

OverflowKind	computeOverflowForSignedMul (SDValue N0, SDValue N1) const
	Determine if the result of the signed mul of 2 nodes can overflow.

OverflowKind	computeOverflowForUnsignedMul (SDValue N0, SDValue N1) const
	Determine if the result of the unsigned mul of 2 nodes can overflow.

OverflowKind	computeOverflowForMul (bool IsSigned, SDValue N0, SDValue N1) const
	Determine if the result of the mul of 2 nodes can overflow.

bool	willNotOverflowMul (bool IsSigned, SDValue N0, SDValue N1) const
	Determine if the result of the mul of 2 nodes can never overflow.

bool	isKnownToBeAPowerOfTwo (SDValue Val, unsigned Depth=0) const
	Test if the given value is known to have exactly one bit set.

bool	isKnownToBeAPowerOfTwoFP (SDValue Val, unsigned Depth=0) const
	Test if the given fp value is known to be an integer power-of-2, either positive or negative.

unsigned	ComputeNumSignBits (SDValue Op, unsigned Depth=0) const
	Return the number of times the sign bit of the register is replicated into the other bits.

unsigned	ComputeNumSignBits (SDValue Op, const APInt &DemandedElts, unsigned Depth=0) const
	Return the number of times the sign bit of the register is replicated into the other bits.

unsigned	ComputeMaxSignificantBits (SDValue Op, unsigned Depth=0) const
	Get the upper bound on bit size for this Value `Op` as a signed integer.

unsigned	ComputeMaxSignificantBits (SDValue Op, const APInt &DemandedElts, unsigned Depth=0) const
	Get the upper bound on bit size for this Value `Op` as a signed integer.

bool	isGuaranteedNotToBeUndefOrPoison (SDValue Op, bool PoisonOnly=false, unsigned Depth=0) const
	Return true if this function can prove that `Op` is never poison and, if `PoisonOnly` is false, does not have undef bits.

bool	isGuaranteedNotToBeUndefOrPoison (SDValue Op, const APInt &DemandedElts, bool PoisonOnly=false, unsigned Depth=0) const
	Return true if this function can prove that `Op` is never poison and, if `PoisonOnly` is false, does not have undef bits.

bool	isGuaranteedNotToBePoison (SDValue Op, unsigned Depth=0) const
	Return true if this function can prove that `Op` is never poison.

bool	isGuaranteedNotToBePoison (SDValue Op, const APInt &DemandedElts, unsigned Depth=0) const
	Return true if this function can prove that `Op` is never poison.

bool	canCreateUndefOrPoison (SDValue Op, const APInt &DemandedElts, bool PoisonOnly=false, bool ConsiderFlags=true, unsigned Depth=0) const
	Return true if Op can create undef or poison from non-undef & non-poison operands.

bool	canCreateUndefOrPoison (SDValue Op, bool PoisonOnly=false, bool ConsiderFlags=true, unsigned Depth=0) const
	Return true if Op can create undef or poison from non-undef & non-poison operands.

bool	isADDLike (SDValue Op, bool NoWrap=false) const
	Return true if the specified operand is an ISD::OR or ISD::XOR node that can be treated as an ISD::ADD node.

bool	isBaseWithConstantOffset (SDValue Op) const
	Return true if the specified operand is an ISD::ADD with a ConstantSDNode on the right-hand side, or if it is an ISD::OR with a ConstantSDNode that is guaranteed to have the same semantics as an ADD.

bool	isKnownNeverNaN (SDValue Op, bool SNaN=false, unsigned Depth=0) const
	Test whether the given SDValue (or all elements of it, if it is a vector) is known to never be NaN.

bool	isKnownNeverSNaN (SDValue Op, unsigned Depth=0) const

bool	isKnownNeverZeroFloat (SDValue Op) const
	Test whether the given floating point SDValue is known to never be positive or negative zero.

bool	isKnownNeverZero (SDValue Op, unsigned Depth=0) const
	Test whether the given SDValue is known to contain non-zero value(s).

bool	cannotBeOrderedNegativeFP (SDValue Op) const
	Test whether the given float value is known to be positive.

bool	isEqualTo (SDValue A, SDValue B) const
	Test whether two SDValues are known to compare equal.

bool	haveNoCommonBitsSet (SDValue A, SDValue B) const
	Return true if A and B have no common bits set.

bool	isSplatValue (SDValue V, const APInt &DemandedElts, APInt &UndefElts, unsigned Depth=0) const
	Test whether `V` has a splatted value for all the demanded elements.

bool	isSplatValue (SDValue V, bool AllowUndefs=false) const
	Test whether `V` has a splatted value.

SDValue	getSplatSourceVector (SDValue V, int &SplatIndex)
	If V is a splatted value, return the source vector and its splat index.

SDValue	getSplatValue (SDValue V, bool LegalTypes=false)
	If V is a splat vector, return its scalar source operand by extracting that element from the source vector.

std::optional< ConstantRange >	getValidShiftAmountRange (SDValue V, const APInt &DemandedElts, unsigned Depth) const
	If a SHL/SRA/SRL node `V` has shift amounts that are all less than the element bit-width of the shift node, return the valid constant range.

std::optional< uint64_t >	getValidShiftAmount (SDValue V, const APInt &DemandedElts, unsigned Depth=0) const
	If a SHL/SRA/SRL node `V` has a uniform shift amount that is less than the element bit-width of the shift node, return it.

std::optional< uint64_t >	getValidShiftAmount (SDValue V, unsigned Depth=0) const
	If a SHL/SRA/SRL node `V` has a uniform shift amount that is less than the element bit-width of the shift node, return it.

std::optional< uint64_t >	getValidMinimumShiftAmount (SDValue V, const APInt &DemandedElts, unsigned Depth=0) const
	If a SHL/SRA/SRL node `V` has shift amounts that are all less than the element bit-width of the shift node, return the minimum possible value.

std::optional< uint64_t >	getValidMinimumShiftAmount (SDValue V, unsigned Depth=0) const
	If a SHL/SRA/SRL node `V` has shift amounts that are all less than the element bit-width of the shift node, return the minimum possible value.

std::optional< uint64_t >	getValidMaximumShiftAmount (SDValue V, const APInt &DemandedElts, unsigned Depth=0) const
	If a SHL/SRA/SRL node `V` has shift amounts that are all less than the element bit-width of the shift node, return the maximum possible value.

std::optional< uint64_t >	getValidMaximumShiftAmount (SDValue V, unsigned Depth=0) const
	If a SHL/SRA/SRL node `V` has shift amounts that are all less than the element bit-width of the shift node, return the maximum possible value.

SDValue	matchBinOpReduction (SDNode *Extract, ISD::NodeType &BinOp, ArrayRef< ISD::NodeType > CandidateBinOps, bool AllowPartials=false)
	Match a binop + shuffle pyramid that represents a horizontal reduction over the elements of a vector starting from the EXTRACT_VECTOR_ELT node /p Extract.

SDValue	UnrollVectorOp (SDNode *N, unsigned ResNE=0)
	Utility function used by legalize and lowering to "unroll" a vector operation by splitting out the scalars and operating on each element individually.

std::pair< SDValue, SDValue >	UnrollVectorOverflowOp (SDNode *N, unsigned ResNE=0)
	Like UnrollVectorOp(), but for the [US](ADD\|SUB\|MUL)O family of opcodes.

bool	areNonVolatileConsecutiveLoads (LoadSDNode LD, LoadSDNode Base, unsigned Bytes, int Dist) const
	Return true if loads are next to each other and can be merged.

MaybeAlign	InferPtrAlign (SDValue Ptr) const
	Infer alignment of a load / store address.

std::pair< SDValue, SDValue >	SplitScalar (const SDValue &N, const SDLoc &DL, const EVT &LoVT, const EVT &HiVT)
	Split the scalar node with EXTRACT_ELEMENT using the provided VTs and return the low/high part.

std::pair< EVT, EVT >	GetSplitDestVTs (const EVT &VT) const
	Compute the VTs needed for the low/hi parts of a type which is split (or expanded) into two not necessarily identical pieces.

std::pair< EVT, EVT >	GetDependentSplitDestVTs (const EVT &VT, const EVT &EnvVT, bool *HiIsEmpty) const
	Compute the VTs needed for the low/hi parts of a type, dependent on an enveloping VT that has been split into two identical pieces.

std::pair< SDValue, SDValue >	SplitVector (const SDValue &N, const SDLoc &DL, const EVT &LoVT, const EVT &HiVT)
	Split the vector with EXTRACT_SUBVECTOR using the provided VTs and return the low/high part.

std::pair< SDValue, SDValue >	SplitVector (const SDValue &N, const SDLoc &DL)
	Split the vector with EXTRACT_SUBVECTOR and return the low/high part.

std::pair< SDValue, SDValue >	SplitEVL (SDValue N, EVT VecVT, const SDLoc &DL)
	Split the explicit vector length parameter of a VP operation.

std::pair< SDValue, SDValue >	SplitVectorOperand (const SDNode *N, unsigned OpNo)
	Split the node's operand with EXTRACT_SUBVECTOR and return the low/high part.

SDValue	WidenVector (const SDValue &N, const SDLoc &DL)
	Widen the vector up to the next power of two using INSERT_SUBVECTOR.

void	ExtractVectorElements (SDValue Op, SmallVectorImpl< SDValue > &Args, unsigned Start=0, unsigned Count=0, EVT EltVT=EVT())
	Append the extracted elements from Start to Count out of the vector Op in Args.

Align	getEVTAlign (EVT MemoryVT) const
	Compute the default alignment value for the given type.

bool	isConstantIntBuildVectorOrConstantInt (SDValue N, bool AllowOpaques=true) const
	Test whether the given value is a constant int or similar node.

bool	isConstantFPBuildVectorOrConstantFP (SDValue N) const
	Test whether the given value is a constant FP or similar node.

bool	isConstantValueOfAnyType (SDValue N) const

std::optional< bool >	isBoolConstant (SDValue N, bool AllowTruncation=false) const
	Check if a value \op N is a constant using the target's BooleanContent for its type.

void	addCallSiteInfo (const SDNode *Node, CallSiteInfo &&CallInfo)
	Set CallSiteInfo to be associated with Node.

CallSiteInfo	getCallSiteInfo (const SDNode *Node)
	Return CallSiteInfo associated with Node, or a default if none exists.

void	addHeapAllocSite (const SDNode Node, MDNode MD)
	Set HeapAllocSite to be associated with Node.

MDNode *	getHeapAllocSite (const SDNode *Node) const
	Return HeapAllocSite associated with Node, or nullptr if none exists.

void	addPCSections (const SDNode Node, MDNode MD)
	Set PCSections to be associated with Node.

void	addMMRAMetadata (const SDNode Node, MDNode MMRA)
	Set MMRAMetadata to be associated with Node.

MDNode *	getPCSections (const SDNode *Node) const
	Return PCSections associated with Node, or nullptr if none exists.

MDNode *	getMMRAMetadata (const SDNode *Node) const
	Return the MMRA MDNode associated with Node, or nullptr if none exists.

void	addNoMergeSiteInfo (const SDNode *Node, bool NoMerge)
	Set NoMergeSiteInfo to be associated with Node if NoMerge is true.

bool	getNoMergeSiteInfo (const SDNode *Node) const
	Return NoMerge info associated with Node.

void	copyExtraInfo (SDNode From, SDNode To)
	Copy extra info associated with one node to another.

DenormalMode	getDenormalMode (EVT VT) const
	Return the current function's default denormal handling kind for the given floating point type.

bool	shouldOptForSize () const

SDValue	getNeutralElement (unsigned Opcode, const SDLoc &DL, EVT VT, SDNodeFlags Flags)
	Get the (commutative) neutral element for the given opcode, if it exists.

bool	isSafeToSpeculativelyExecute (unsigned Opcode) const
	Some opcodes may create immediate undefined behavior when used with some values (integer division-by-zero for example).

bool	isSafeToSpeculativelyExecuteNode (const SDNode *N) const
	Check if the provided node is save to speculatively executed given its current arguments.

SDValue	makeStateFunctionCall (unsigned LibFunc, SDValue Ptr, SDValue InChain, const SDLoc &DLoc)
	Helper used to make a call to a library function that has one argument of pointer type.


SDValue	getConstant (uint64_t Val, const SDLoc &DL, EVT VT, bool isTarget=false, bool isOpaque=false)
	Create a ConstantSDNode wrapping a constant value.

SDValue	getConstant (const APInt &Val, const SDLoc &DL, EVT VT, bool isTarget=false, bool isOpaque=false)

SDValue	getSignedConstant (int64_t Val, const SDLoc &DL, EVT VT, bool isTarget=false, bool isOpaque=false)

SDValue	getAllOnesConstant (const SDLoc &DL, EVT VT, bool IsTarget=false, bool IsOpaque=false)

SDValue	getConstant (const ConstantInt &Val, const SDLoc &DL, EVT VT, bool isTarget=false, bool isOpaque=false)

SDValue	getIntPtrConstant (uint64_t Val, const SDLoc &DL, bool isTarget=false)

SDValue	getShiftAmountConstant (uint64_t Val, EVT VT, const SDLoc &DL)

SDValue	getShiftAmountConstant (const APInt &Val, EVT VT, const SDLoc &DL)

SDValue	getVectorIdxConstant (uint64_t Val, const SDLoc &DL, bool isTarget=false)

SDValue	getTargetConstant (uint64_t Val, const SDLoc &DL, EVT VT, bool isOpaque=false)

SDValue	getTargetConstant (const APInt &Val, const SDLoc &DL, EVT VT, bool isOpaque=false)

SDValue	getTargetConstant (const ConstantInt &Val, const SDLoc &DL, EVT VT, bool isOpaque=false)

SDValue	getSignedTargetConstant (int64_t Val, const SDLoc &DL, EVT VT, bool isOpaque=false)

SDValue	getBoolConstant (bool V, const SDLoc &DL, EVT VT, EVT OpVT)
	Create a true or false constant of type `VT` using the target's BooleanContent for type `OpVT`.


SDValue	getConstantFP (double Val, const SDLoc &DL, EVT VT, bool isTarget=false)
	Create a ConstantFPSDNode wrapping a constant value.

SDValue	getConstantFP (const APFloat &Val, const SDLoc &DL, EVT VT, bool isTarget=false)

SDValue	getConstantFP (const ConstantFP &V, const SDLoc &DL, EVT VT, bool isTarget=false)

SDValue	getTargetConstantFP (double Val, const SDLoc &DL, EVT VT)

SDValue	getTargetConstantFP (const APFloat &Val, const SDLoc &DL, EVT VT)

SDValue	getTargetConstantFP (const ConstantFP &Val, const SDLoc &DL, EVT VT)

Static Public Member Functions
static unsigned	getHasPredecessorMaxSteps ()

static unsigned	getOpcode_EXTEND (unsigned Opcode)
	Convert _EXTEND_VECTOR_INREG to _EXTEND opcode.

static unsigned	getOpcode_EXTEND_VECTOR_INREG (unsigned Opcode)
	Convert _EXTEND to _EXTEND_VECTOR_INREG opcode.

Public Attributes
bool	NewNodesMustHaveLegalTypes = false
	When true, additional steps are taken to ensure that getConstant() and similar functions return DAG nodes that have legal types.

Static Public Attributes
static constexpr unsigned	MaxRecursionDepth = 6

Friends
struct	DAGUpdateListener
	DAGUpdateListener is a friend so it can manipulate the listener stack.

Detailed Description

This is used to represent a portion of an LLVM function in a low-level Data Dependence DAG representation suitable for instruction selection.

This DAG is constructed as the first step of instruction selection in order to allow implementation of machine specific optimizations and code simplifications.

The representation used by the SelectionDAG is a target-independent representation, which has some similarities to the GCC RTL representation, but is significantly more simple, powerful, and is a graph form instead of a linear form.

Definition at line 228 of file SelectionDAG.h.

Member Typedef Documentation

◆ allnodes_const_iterator

using llvm::SelectionDAG::allnodes_const_iterator = ilist<SDNode>::const_iterator

Definition at line 553 of file SelectionDAG.h.

◆ allnodes_iterator

using llvm::SelectionDAG::allnodes_iterator = ilist<SDNode>::iterator

Definition at line 558 of file SelectionDAG.h.

Member Enumeration Documentation

◆ OverflowKind

enum llvm::SelectionDAG::OverflowKind

Used to represent the possible overflow behavior of an operation.

Never: the operation cannot overflow. Always: the operation will always overflow. Sometime: the operation may or may not overflow.

Enumerator
OFK_Never
OFK_Sometime
OFK_Always

Definition at line 1975 of file SelectionDAG.h.

Constructor & Destructor Documentation

◆ SelectionDAG() [1/2]

SelectionDAG::SelectionDAG	(	const TargetMachine &	TM,
		CodeGenOptLevel	OL
	)

explicit

Definition at line 1345 of file SelectionDAG.cpp.

◆ SelectionDAG() [2/2]

llvm::SelectionDAG::SelectionDAG ( const SelectionDAG & )

delete

◆ ~SelectionDAG()

SelectionDAG::~SelectionDAG ( )

Definition at line 1373 of file SelectionDAG.cpp.

References assert().

Member Function Documentation

◆ addCallSiteInfo()

void llvm::SelectionDAG::addCallSiteInfo	(	const SDNode *	Node,
		CallSiteInfo &&	CallInfo
	)

inline

Set CallSiteInfo to be associated with Node.

Definition at line 2340 of file SelectionDAG.h.

◆ AddDbgLabel()

void SelectionDAG::AddDbgLabel ( SDDbgLabel * DB )

Add a dbg_label SDNode.

Definition at line 12129 of file SelectionDAG.cpp.

References llvm::SDDbgInfo::add().

Referenced by llvm::SelectionDAGBuilder::visitDbgInfo().

◆ AddDbgValue()

void SelectionDAG::AddDbgValue	(	SDDbgValue *	DB,
		bool	isParameter
	)

Add a dbg_value SDNode.

AddDbgValue - Add a dbg_value SDNode.

If SD is non-null that means the value is produced by SD.

Definition at line 12119 of file SelectionDAG.cpp.

References llvm::SDDbgInfo::add(), assert(), and llvm::SDDbgInfo::getSDDbgValues().

Referenced by handleDanglingVariadicDebugInfo(), llvm::SelectionDAGBuilder::handleDebugDeclare(), llvm::SelectionDAGBuilder::handleDebugValue(), llvm::SelectionDAGBuilder::resolveDanglingDebugInfo(), salvageDebugInfo(), llvm::SelectionDAGBuilder::salvageUnresolvedDbgValue(), and transferDbgValues().

◆ addHeapAllocSite()

void llvm::SelectionDAG::addHeapAllocSite	(	const SDNode *	Node,
		MDNode *	MD
	)

inline

Set HeapAllocSite to be associated with Node.

Definition at line 2349 of file SelectionDAG.h.

◆ addMMRAMetadata()

void llvm::SelectionDAG::addMMRAMetadata	(	const SDNode *	Node,
		MDNode *	MMRA
	)

inline

Set MMRAMetadata to be associated with Node.

Definition at line 2362 of file SelectionDAG.h.

Referenced by llvm::SelectionDAGBuilder::visit().

◆ addNoMergeSiteInfo()

void llvm::SelectionDAG::addNoMergeSiteInfo	(	const SDNode *	Node,
		bool	NoMerge
	)

inline

Set NoMergeSiteInfo to be associated with Node if NoMerge is true.

Definition at line 2377 of file SelectionDAG.h.

Referenced by llvm::SystemZTargetLowering::LowerCall(), llvm::LoongArchTargetLowering::LowerCall(), and llvm::RISCVTargetLowering::LowerCall().

◆ addPCSections()

void llvm::SelectionDAG::addPCSections	(	const SDNode *	Node,
		MDNode *	MD
	)

inline

Set PCSections to be associated with Node.

Definition at line 2358 of file SelectionDAG.h.

Referenced by llvm::SelectionDAGBuilder::visit().

◆ allnodes() [1/2]

iterator_range< allnodes_iterator > llvm::SelectionDAG::allnodes ( )

inline

Definition at line 567 of file SelectionDAG.h.

References allnodes_begin(), allnodes_end(), and llvm::make_range().

Referenced by AssignTopologicalOrder(), dump(), llvm::HexagonDAGToDAGISel::PreprocessISelDAG(), RemoveDeadNodes(), and llvm::DAGTypeLegalizer::run().

◆ allnodes() [2/2]

iterator_range< allnodes_const_iterator > llvm::SelectionDAG::allnodes ( ) const

inline

Definition at line 570 of file SelectionDAG.h.

References allnodes_begin(), allnodes_end(), and llvm::make_range().

◆ allnodes_begin() [1/2]

allnodes_iterator llvm::SelectionDAG::allnodes_begin ( )

inline

Definition at line 560 of file SelectionDAG.h.

◆ allnodes_begin() [2/2]

allnodes_const_iterator llvm::SelectionDAG::allnodes_begin ( ) const

inline

Definition at line 555 of file SelectionDAG.h.

Referenced by allnodes(), AssignTopologicalOrder(), Legalize(), llvm::AMDGPUDAGToDAGISel::PostprocessISelDAG(), llvm::RISCVDAGToDAGISel::PostprocessISelDAG(), llvm::AMDGPUDAGToDAGISel::PreprocessISelDAG(), and llvm::RISCVDAGToDAGISel::PreprocessISelDAG().

◆ allnodes_end() [1/2]

allnodes_iterator llvm::SelectionDAG::allnodes_end ( )

inline

Definition at line 561 of file SelectionDAG.h.

◆ allnodes_end() [2/2]

allnodes_const_iterator llvm::SelectionDAG::allnodes_end ( ) const

inline

Definition at line 556 of file SelectionDAG.h.

Referenced by allnodes(), Legalize(), llvm::AMDGPUDAGToDAGISel::PostprocessISelDAG(), llvm::RISCVDAGToDAGISel::PostprocessISelDAG(), llvm::AMDGPUDAGToDAGISel::PreprocessISelDAG(), and llvm::RISCVDAGToDAGISel::PreprocessISelDAG().

◆ allnodes_size()

ilist< SDNode >::size_type llvm::SelectionDAG::allnodes_size ( ) const

inline

Definition at line 563 of file SelectionDAG.h.

Referenced by AssignTopologicalOrder(), and llvm::HexagonDAGToDAGISel::PreprocessISelDAG().

◆ areNonVolatileConsecutiveLoads()

bool SelectionDAG::areNonVolatileConsecutiveLoads	(	LoadSDNode *	LD,
		LoadSDNode *	Base,
		unsigned	Bytes,
		int	Dist
	)		const

Return true if loads are next to each other and can be merged.

Check that both are nonvolatile and if LD is loading 'Bytes' bytes from a location that is 'Dist' units away from the location that the 'Base' load is loading from.

Definition at line 12861 of file SelectionDAG.cpp.

References llvm::sampleprof::Base, llvm::EVT::getSizeInBits(), llvm::BaseIndexOffset::match(), and llvm::Offset.

Referenced by areLoadedOffsetButOtherwiseSame(), combineBVOfConsecutiveLoads(), combineINSERT_SUBVECTOR(), EltsFromConsecutiveLoads(), and lowerShuffleAsVTRUNC().

◆ AssignTopologicalOrder()

unsigned SelectionDAG::AssignTopologicalOrder ( )

Topological-sort the AllNodes list and a assign a unique node id for each node in the DAG based on their topological order.

AssignTopologicalOrder - Assign a unique node id for each node in the DAG based on their topological order.

Returns the number of nodes.

It returns the maximum id and a vector of the SDNodes* in assigned order by reference.

Definition at line 12033 of file SelectionDAG.cpp.

References allnodes(), allnodes_begin(), allnodes_size(), assert(), llvm::checkForCycles(), llvm::dbgs(), llvm::SDNode::dumprFull(), llvm::ISD::EntryToken, I, llvm_unreachable, llvm::make_early_inc_range(), N, and P.

Referenced by Legalize().

◆ ByvalParmDbgBegin()

SDDbgInfo::DbgIterator llvm::SelectionDAG::ByvalParmDbgBegin ( ) const

inline

Definition at line 1872 of file SelectionDAG.h.

References llvm::SDDbgInfo::ByvalParmDbgBegin().

Referenced by dump(), and llvm::ScheduleDAGSDNodes::EmitSchedule().

◆ ByvalParmDbgEnd()

SDDbgInfo::DbgIterator llvm::SelectionDAG::ByvalParmDbgEnd ( ) const

inline

Definition at line 1875 of file SelectionDAG.h.

References llvm::SDDbgInfo::ByvalParmDbgEnd().

Referenced by dump(), and llvm::ScheduleDAGSDNodes::EmitSchedule().

◆ calculateDivergence()

bool SelectionDAG::calculateDivergence ( SDNode * N )

Definition at line 11903 of file SelectionDAG.cpp.

References assert(), gluePropagatesDivergence(), llvm::TargetLowering::isSDNodeAlwaysUniform(), llvm::TargetLowering::isSDNodeSourceOfDivergence(), and N.

Referenced by updateDivergence().

◆ canCreateUndefOrPoison() [1/2]

bool SelectionDAG::canCreateUndefOrPoison	(	SDValue	Op,
		bool	PoisonOnly = `false`,
		bool	ConsiderFlags = `true`,
		unsigned	Depth = `0`
	)		const

Return true if Op can create undef or poison from non-undef & non-poison operands.

ConsiderFlags controls whether poison producing flags on the instruction are considered. This can be used to see if the instruction could still introduce undef or poison even without poison generating flags which might be on the instruction. (i.e. could the result of Op->dropPoisonGeneratingFlags() still create poison or undef)

Definition at line 5508 of file SelectionDAG.cpp.

References canCreateUndefOrPoison(), llvm::Depth, llvm::APInt::getAllOnes(), llvm::EVT::getVectorNumElements(), llvm::EVT::isFixedLengthVector(), and PoisonOnly.

◆ canCreateUndefOrPoison() [2/2]

bool SelectionDAG::canCreateUndefOrPoison	(	SDValue	Op,
		const APInt &	DemandedElts,
		bool	PoisonOnly = `false`,
		bool	ConsiderFlags = `true`,
		unsigned	Depth = `0`
	)		const

Return true if Op can create undef or poison from non-undef & non-poison operands.

The DemandedElts argument limits the check to the requested vector elements.

ConsiderFlags controls whether poison producing flags on the instruction are considered. This can be used to see if the instruction could still introduce undef or poison even without poison generating flags which might be on the instruction. (i.e. could the result of Op->dropPoisonGeneratingFlags() still create poison or undef)

Definition at line 5519 of file SelectionDAG.cpp.

References llvm::ISD::ADD, llvm::ISD::AND, llvm::ISD::BITCAST, llvm::ISD::BITREVERSE, llvm::ISD::BSWAP, llvm::ISD::BUILD_PAIR, llvm::ISD::BUILD_VECTOR, llvm::ISD::BUILTIN_OP_END, llvm::TargetLowering::canCreateUndefOrPoisonForTargetNode(), computeKnownBits(), llvm::ISD::CONCAT_VECTORS, llvm::ISD::CTPOP, llvm::Depth, llvm::enumerate(), llvm::ISD::EXTRACT_VECTOR_ELT, llvm::ISD::FREEZE, llvm::ISD::FSHL, llvm::ISD::FSHR, llvm::KnownBits::getMaxValue(), getTarget(), getValidMaximumShiftAmount(), llvm::EVT::getVectorMinNumElements(), Idx, llvm::ISD::INSERT_SUBVECTOR, llvm::ISD::INSERT_VECTOR_ELT, llvm::ISD::INTRINSIC_VOID, llvm::ISD::INTRINSIC_W_CHAIN, llvm::ISD::INTRINSIC_WO_CHAIN, isGuaranteedNotToBeUndefOrPoison(), llvm::ISD::MUL, llvm::ISD::MULHS, llvm::ISD::MULHU, llvm::TargetMachine::Options, Options, llvm::ISD::OR, llvm::ISD::PARITY, PoisonOnly, llvm::ISD::ROTL, llvm::ISD::ROTR, llvm::ISD::SADDSAT, llvm::ISD::SCALAR_TO_VECTOR, llvm::ISD::SELECT_CC, llvm::ISD::SETCC, llvm::ISD::SHL, llvm::ISD::SIGN_EXTEND, llvm::ISD::SIGN_EXTEND_INREG, llvm::ISD::SIGN_EXTEND_VECTOR_INREG, llvm::ISD::SMAX, llvm::ISD::SMIN, llvm::ISD::SPLAT_VECTOR, llvm::ISD::SRA, llvm::ISD::SRL, llvm::ISD::SSUBSAT, llvm::ISD::SUB, llvm::ISD::TRUNCATE, llvm::ISD::UADDSAT, llvm::APInt::uge(), llvm::APInt::ugt(), llvm::ISD::UMAX, llvm::ISD::UMIN, llvm::ISD::USUBSAT, llvm::ISD::VECTOR_SHUFFLE, llvm::ISD::XOR, llvm::ISD::ZERO_EXTEND, and llvm::ISD::ZERO_EXTEND_VECTOR_INREG.

Referenced by canCreateUndefOrPoison(), and isGuaranteedNotToBeUndefOrPoison().

◆ cannotBeOrderedNegativeFP()

bool SelectionDAG::cannotBeOrderedNegativeFP ( SDValue Op ) const

Test whether the given float value is known to be positive.

+0.0, +inf and +nan are considered positive, -0.0, -inf and -nan are not.

Definition at line 5947 of file SelectionDAG.cpp.

References llvm::ISD::FABS, and llvm::isConstOrConstSplatFP().

◆ canonicalizeCommutativeBinop()

void SelectionDAG::canonicalizeCommutativeBinop	(	unsigned	Opcode,
		SDValue &	N1,
		SDValue &	N2
	)		const

Swap N1 and N2 if Opcode is a commutative binary opcode and the canonical form expects the opposite order.

Definition at line 7196 of file SelectionDAG.cpp.

References llvm::SDValue::getOpcode(), llvm::TargetLoweringBase::isCommutativeBinOp(), isConstantFPBuildVectorOrConstantFP(), isConstantIntBuildVectorOrConstantInt(), llvm::ISD::SPLAT_VECTOR, llvm::ISD::STEP_VECTOR, and std::swap().

Referenced by getNode().

◆ clear()

void SelectionDAG::clear ( )

Clear state and free memory necessary to make this SelectionDAG ready to process a new block.

Definition at line 1434 of file SelectionDAG.cpp.

References llvm::SDDbgInfo::clear(), getEntryNode(), and llvm::BumpPtrAllocatorImpl< AllocatorT, SlabSize, SizeThreshold, GrowthDelay >::Reset().

◆ clearGraphAttrs()

void SelectionDAG::clearGraphAttrs ( )

Clear all previously defined node graph attributes.

clearGraphAttrs - Clear all previously defined node graph attributes.

Intended to be used from a debugging tool (eg. gdb).

Definition at line 179 of file SelectionDAGPrinter.cpp.

References llvm::errs().

◆ Combine()

void SelectionDAG::Combine	(	CombineLevel	Level,
		AAResults *	AA,
		CodeGenOptLevel	OptLevel
	)

This iterates over the nodes in the SelectionDAG, folding certain types of nodes together, or eliminating superfluous nodes.

This is the entry point for the file.

The Level argument controls whether Combine is allowed to produce nodes and types that are illegal on the target.

This is the main entry point to this class.

Definition at line 29168 of file DAGCombiner.cpp.

◆ computeKnownBits() [1/2]

KnownBits SelectionDAG::computeKnownBits	(	SDValue	Op,
		const APInt &	DemandedElts,
		unsigned	Depth = `0`
	)		const

Determine which bits of Op are known to be either zero or one and return them in Known.

The DemandedElts argument allows us to only collect the known bits that are shared by the requested vector elements. Targets can implement the computeKnownBitsForTargetNode method in the TargetLowering class to allow target nodes to be understood.

The DemandedElts argument allows us to only collect the known bits that are shared by the requested vector elements.

Definition at line 3409 of file SelectionDAG.cpp.

◆ computeKnownBits() [2/2]

KnownBits SelectionDAG::computeKnownBits	(	SDValue	Op,
		unsigned	Depth = `0`
	)		const

Determine which bits of Op are known to be either zero or one and return them in Known.

For vectors, the known bits are those that are shared by every vector element. Targets can implement the computeKnownBitsForTargetNode method in the TargetLowering class to allow target nodes to be understood.

For vectors, the known bits are those that are shared by every vector element.

Definition at line 3394 of file SelectionDAG.cpp.

References computeKnownBits(), llvm::Depth, llvm::APInt::getAllOnes(), llvm::EVT::getVectorNumElements(), and llvm::EVT::isFixedLengthVector().

◆ ComputeMaxSignificantBits() [1/2]

unsigned SelectionDAG::ComputeMaxSignificantBits	(	SDValue	Op,
		const APInt &	DemandedElts,
		unsigned	Depth = `0`
	)		const

Get the upper bound on bit size for this Value Op as a signed integer.

i.e. x == sext(trunc(x to MaxSignedBits) to bitwidth(x)). Similar to the APInt::getSignificantBits function. Helper wrapper to ComputeNumSignBits.

Definition at line 5402 of file SelectionDAG.cpp.

References ComputeNumSignBits(), and llvm::Depth.

◆ ComputeMaxSignificantBits() [2/2]

unsigned SelectionDAG::ComputeMaxSignificantBits	(	SDValue	Op,
		unsigned	Depth = `0`
	)		const

Get the upper bound on bit size for this Value Op as a signed integer.

i.e. x == sext(trunc(x to MaxSignedBits) to bitwidth(x)). Similar to the APInt::getSignificantBits function. Helper wrapper to ComputeNumSignBits.

Definition at line 5396 of file SelectionDAG.cpp.

References ComputeNumSignBits(), and llvm::Depth.

Referenced by combineConcatVectorOps(), combineMulToPMADDWD(), combinePMULH(), detectExtMul(), EmitCmp(), llvm::TargetLowering::expandMUL_LOHI(), getPack(), lowerBuildVectorOfConstants(), llvm::AMDGPUTargetLowering::numBitsSigned(), and llvm::TargetLowering::SimplifyDemandedBits().

◆ ComputeNumSignBits() [1/2]

unsigned SelectionDAG::ComputeNumSignBits	(	SDValue	Op,
		const APInt &	DemandedElts,
		unsigned	Depth = `0`
	)		const

Return the number of times the sign bit of the register is replicated into the other bits.

We know that at least 1 bit is always equal to the sign bit (itself), but other cases can give us information. For example, immediately after an "SRA X, 2", we know that the top 3 bits are all equal to each other, so we return 3. The DemandedElts argument allows us to only collect the minimum sign bits of the requested vector elements. Targets can implement the ComputeNumSignBitsForTarget method in the TargetLowering class to allow target nodes to be understood.

Definition at line 4730 of file SelectionDAG.cpp.

References llvm::ISD::ADD, llvm::ISD::ADDC, llvm::ISD::AND, assert(), llvm::ISD::AssertSext, llvm::ISD::AssertZext, llvm::ISD::ATOMIC_CMP_SWAP, llvm::ISD::ATOMIC_CMP_SWAP_WITH_SUCCESS, llvm::ISD::ATOMIC_LOAD, llvm::ISD::ATOMIC_LOAD_ADD, llvm::ISD::ATOMIC_LOAD_AND, llvm::ISD::ATOMIC_LOAD_CLR, llvm::ISD::ATOMIC_LOAD_MAX, llvm::ISD::ATOMIC_LOAD_MIN, llvm::ISD::ATOMIC_LOAD_NAND, llvm::ISD::ATOMIC_LOAD_OR, llvm::ISD::ATOMIC_LOAD_SUB, llvm::ISD::ATOMIC_LOAD_UMAX, llvm::ISD::ATOMIC_LOAD_UMIN, llvm::ISD::ATOMIC_LOAD_XOR, llvm::ISD::ATOMIC_SWAP, llvm::ISD::AVGCEILS, llvm::ISD::AVGFLOORS, llvm::ISD::BITCAST, llvm::BitWidth, llvm::ISD::BUILD_VECTOR, llvm::ISD::BUILTIN_OP_END, llvm::CallingConv::C, llvm::APInt::clearBit(), computeKnownBits(), ComputeNumSignBits(), llvm::TargetLowering::ComputeNumSignBitsForTargetNode(), llvm::ISD::CONCAT_VECTORS, llvm::KnownBits::countMinSignBits(), llvm::Depth, llvm::ISD::EXTRACT_ELEMENT, llvm::ISD::EXTRACT_SUBVECTOR, llvm::ISD::EXTRACT_VECTOR_ELT, llvm::APInt::extractBits(), llvm::ISD::FP_TO_SINT_SAT, llvm::Constant::getAggregateElement(), llvm::APInt::getAllOnes(), llvm::ConstantSDNode::getAPIntValue(), llvm::APInt::getBitWidth(), llvm::ConstantRange::getBitWidth(), llvm::TargetLoweringBase::getBooleanContents(), llvm::getConstantRangeFromMetadata(), getDataLayout(), llvm::TargetLoweringBase::getExtendForAtomicOps(), llvm::ShuffleVectorSDNode::getMask(), llvm::DWARFExpression::Operation::getNumOperands(), llvm::APInt::getNumSignBits(), llvm::APInt::getOneBitSet(), llvm::Type::getPrimitiveSizeInBits(), llvm::EVT::getScalarSizeInBits(), llvm::Type::getScalarSizeInBits(), llvm::SDValue::getScalarValueSizeInBits(), llvm::getShuffleDemandedElts(), llvm::ConstantRange::getSignedMax(), llvm::ConstantRange::getSignedMin(), llvm::TargetLowering::getTargetConstantFromLoad(), getValidMinimumShiftAmount(), getValidShiftAmountRange(), llvm::SDValue::getValueType(), llvm::EVT::getVectorNumElements(), llvm::APInt::getZero(), Idx, llvm::ISD::INSERT_SUBVECTOR, llvm::ISD::INSERT_VECTOR_ELT, llvm::APInt::insertBits(), llvm::ISD::INTRINSIC_VOID, llvm::ISD::INTRINSIC_W_CHAIN, llvm::ISD::INTRINSIC_WO_CHAIN, llvm::isConstOrConstSplat(), llvm::ISD::isExtOpcode(), llvm::EVT::isFloatingPoint(), llvm::EVT::isInteger(), llvm::DataLayout::isLittleEndian(), llvm::KnownBits::isNonNegative(), llvm::EVT::isScalableVector(), llvm::EVT::isVector(), llvm::Type::isVectorTy(), llvm::ISD::LOAD, MaxRecursionDepth, llvm::ISD::MERGE_VALUES, llvm::ISD::MUL, llvm::ISD::NON_EXTLOAD, llvm::ISD::OR, llvm::ISD::ROTL, llvm::ISD::ROTR, llvm::ISD::SADDO, llvm::ISD::SADDO_CARRY, llvm::APIntOps::ScaleBitMask(), llvm::ISD::SELECT, llvm::ISD::SELECT_CC, llvm::ISD::SETCC, llvm::ISD::SETCCCARRY, llvm::ISD::SEXTLOAD, llvm::APInt::shl(), llvm::ISD::SHL, llvm::ISD::SIGN_EXTEND, llvm::ISD::SIGN_EXTEND_INREG, llvm::ISD::SIGN_EXTEND_VECTOR_INREG, llvm::ConstantRange::signExtend(), llvm::ArrayRef< T >::size(), llvm::APInt::sle(), llvm::ISD::SMAX, llvm::ISD::SMIN, llvm::ISD::SMULO, llvm::ISD::SPLAT_VECTOR, llvm::ISD::SRA, llvm::ISD::SREM, llvm::ISD::SSUBO, llvm::ISD::SSUBO_CARRY, llvm::ISD::STRICT_FSETCC, llvm::ISD::STRICT_FSETCCS, llvm::ISD::SUB, std::swap(), llvm::ISD::TRUNCATE, llvm::ISD::UADDO, llvm::ISD::UADDO_CARRY, llvm::ISD::UMAX, llvm::ISD::UMIN, llvm::ISD::UMULO, llvm::ISD::USUBO, llvm::ISD::USUBO_CARRY, llvm::ISD::VECTOR_SHUFFLE, llvm::ISD::VSELECT, llvm::ISD::XOR, llvm::KnownBits::Zero, llvm::ISD::ZERO_EXTEND, llvm::ConstantRange::zeroExtend(), llvm::TargetLoweringBase::ZeroOrNegativeOneBooleanContent, llvm::APInt::zext(), and llvm::ISD::ZEXTLOAD.

◆ ComputeNumSignBits() [2/2]

unsigned SelectionDAG::ComputeNumSignBits	(	SDValue	Op,
		unsigned	Depth = `0`
	)		const

Return the number of times the sign bit of the register is replicated into the other bits.

We know that at least 1 bit is always equal to the sign bit (itself), but other cases can give us information. For example, immediately after an "SRA X, 2", we know that the top 3 bits are all equal to each other, so we return 3. Targets can implement the ComputeNumSignBitsForTarget method in the TargetLowering class to allow target nodes to be understood.

Definition at line 4718 of file SelectionDAG.cpp.

References ComputeNumSignBits(), llvm::Depth, llvm::APInt::getAllOnes(), llvm::EVT::getVectorNumElements(), and llvm::EVT::isFixedLengthVector().

Referenced by canReduceVMulWidth(), combineAnd(), combineAndMaskToShift(), combineAndnp(), combineBitOpWithPACK(), combineGatherScatter(), combineLogicBlendIntoConditionalNegate(), combineLogicBlendIntoPBLENDV(), combineMulToPMULDQ(), combinePredicateReduction(), combinePTESTCC(), combineSelect(), combineSetCCMOVMSK(), combineShiftToAVG(), combineSIntToFP(), combineVectorCompareAndMaskUnaryOp(), combineVectorPack(), combineVSelectWithAllOnesOrZeros(), computeKnownBits(), ComputeMaxSignificantBits(), ComputeNumSignBits(), computeNumSignBitsBinOp(), llvm::AArch64TargetLowering::ComputeNumSignBitsForTargetNode(), llvm::RISCVTargetLowering::ComputeNumSignBitsForTargetNode(), llvm::SystemZTargetLowering::ComputeNumSignBitsForTargetNode(), llvm::X86TargetLowering::ComputeNumSignBitsForTargetNode(), llvm::AMDGPUTargetLowering::ComputeNumSignBitsForTargetNode(), computeOverflowForSignedAdd(), computeOverflowForSignedMul(), computeOverflowForSignedSub(), llvm::TargetLowering::expandAVG(), llvm::TargetLowering::expandFixedPointDiv(), foldAddSubMasked1(), getFauxShuffleMask(), isS16(), LowerADDSAT_SUBSAT(), llvm::AMDGPUTargetLowering::LowerDIVREM24(), LowerEXTEND_VECTOR_INREG(), llvm::AMDGPUTargetLowering::LowerSDIVREM(), LowerShiftByScalarImmediate(), lowerShuffleWithVPMOV(), LowerTruncateVecI1(), lowerVectorIntrinsicScalars(), LowerVSETCC(), matchBinaryShuffle(), matchShuffleWithPACK(), matchTruncateWithPACK(), matchUnaryShuffle(), llvm::AMDGPUTargetLowering::PerformDAGCombine(), performVectorShiftCombine(), llvm::RISCVTargetLowering::ReplaceNodeResults(), llvm::RISCVDAGToDAGISel::selectSExtBits(), llvm::LoongArchDAGToDAGISel::selectSExti32(), selectUmullSmull(), llvm::TargetLowering::SimplifyDemandedBits(), llvm::X86TargetLowering::SimplifyDemandedBitsForTargetNode(), llvm::TargetLowering::SimplifyMultipleUseDemandedBits(), and llvm::X86TargetLowering::SimplifyMultipleUseDemandedBitsForTargetNode().

◆ computeOverflowForAdd()

OverflowKind llvm::SelectionDAG::computeOverflowForAdd	(	bool	IsSigned,
		SDValue	N0,
		SDValue	N1
	)		const

inline

Determine if the result of the addition of 2 nodes can overflow.

Definition at line 1988 of file SelectionDAG.h.

References computeOverflowForSignedAdd(), and computeOverflowForUnsignedAdd().

Referenced by willNotOverflowAdd().

◆ computeOverflowForMul()

OverflowKind llvm::SelectionDAG::computeOverflowForMul	(	bool	IsSigned,
		SDValue	N0,
		SDValue	N1
	)		const

inline

Determine if the result of the mul of 2 nodes can overflow.

Definition at line 2024 of file SelectionDAG.h.

References computeOverflowForSignedMul(), and computeOverflowForUnsignedMul().

Referenced by willNotOverflowMul().

◆ computeOverflowForSignedAdd()

SelectionDAG::OverflowKind SelectionDAG::computeOverflowForSignedAdd	(	SDValue	N0,
		SDValue	N1
	)		const

Determine if the result of the signed addition of 2 nodes can overflow.

Definition at line 4513 of file SelectionDAG.cpp.

References ComputeNumSignBits(), llvm::isNullConstant(), OFK_Never, and OFK_Sometime.

Referenced by computeOverflowForAdd().

◆ computeOverflowForSignedMul()

SelectionDAG::OverflowKind SelectionDAG::computeOverflowForSignedMul	(	SDValue	N0,
		SDValue	N1
	)		const

Determine if the result of the signed mul of 2 nodes can overflow.

Definition at line 4595 of file SelectionDAG.cpp.

References llvm::BitWidth, computeKnownBits(), ComputeNumSignBits(), llvm::SDValue::getScalarValueSizeInBits(), llvm::KnownBits::isNonNegative(), llvm::isNullConstant(), llvm::isOneConstant(), OFK_Never, and OFK_Sometime.

Referenced by computeOverflowForMul().

◆ computeOverflowForSignedSub()

SelectionDAG::OverflowKind SelectionDAG::computeOverflowForSignedSub	(	SDValue	N0,
		SDValue	N1
	)		const

Determine if the result of the signed sub of 2 nodes can overflow.

Definition at line 4551 of file SelectionDAG.cpp.

References computeKnownBits(), ComputeNumSignBits(), llvm::ConstantRange::fromKnownBits(), llvm::isNullConstant(), mapOverflowResult(), OFK_Never, and llvm::ConstantRange::signedSubMayOverflow().

Referenced by computeOverflowForSub().

◆ computeOverflowForSub()

OverflowKind llvm::SelectionDAG::computeOverflowForSub	(	bool	IsSigned,
		SDValue	N0,
		SDValue	N1
	)		const

inline

Determine if the result of the sub of 2 nodes can overflow.

Definition at line 2006 of file SelectionDAG.h.

References computeOverflowForSignedSub(), and computeOverflowForUnsignedSub().

Referenced by willNotOverflowSub().

◆ computeOverflowForUnsignedAdd()

SelectionDAG::OverflowKind SelectionDAG::computeOverflowForUnsignedAdd	(	SDValue	N0,
		SDValue	N1
	)		const

Determine if the result of the unsigned addition of 2 nodes can overflow.

Definition at line 4528 of file SelectionDAG.cpp.

References computeKnownBits(), llvm::ConstantRange::fromKnownBits(), llvm::KnownBits::getMaxValue(), llvm::SDValue::getOpcode(), llvm::SDValue::getResNo(), llvm::isNullConstant(), mapOverflowResult(), OFK_Never, llvm::APInt::ult(), llvm::ISD::UMUL_LOHI, and llvm::ConstantRange::unsignedAddMayOverflow().

Referenced by computeOverflowForAdd().

◆ computeOverflowForUnsignedMul()

SelectionDAG::OverflowKind SelectionDAG::computeOverflowForUnsignedMul	(	SDValue	N0,
		SDValue	N1
	)		const

Determine if the result of the unsigned mul of 2 nodes can overflow.

Definition at line 4582 of file SelectionDAG.cpp.

References computeKnownBits(), llvm::ConstantRange::fromKnownBits(), llvm::isNullConstant(), llvm::isOneConstant(), mapOverflowResult(), OFK_Never, and llvm::ConstantRange::unsignedMulMayOverflow().

Referenced by computeOverflowForMul().

◆ computeOverflowForUnsignedSub()

SelectionDAG::OverflowKind SelectionDAG::computeOverflowForUnsignedSub	(	SDValue	N0,
		SDValue	N1
	)		const

Determine if the result of the unsigned sub of 2 nodes can overflow.

Definition at line 4569 of file SelectionDAG.cpp.

References computeKnownBits(), llvm::ConstantRange::fromKnownBits(), llvm::isNullConstant(), mapOverflowResult(), OFK_Never, and llvm::ConstantRange::unsignedSubMayOverflow().

Referenced by computeOverflowForSub().

◆ computeVectorKnownZeroElements()

APInt SelectionDAG::computeVectorKnownZeroElements	(	SDValue	Op,
		const APInt &	DemandedElts,
		unsigned	Depth = `0`
	)		const

For each demanded element of a vector, see if it is known to be zero.

Definition at line 2983 of file SelectionDAG.cpp.

References assert(), llvm::Depth, llvm::APInt::getBitWidth(), llvm::APInt::getOneBitSet(), llvm::EVT::getVectorNumElements(), llvm::APInt::getZero(), llvm::EVT::isScalableVector(), llvm::EVT::isVector(), MaskedVectorIsZero(), and llvm::APInt::setBit().

Referenced by combineShuffleToZeroExtendVectorInReg().

◆ copyExtraInfo()

void SelectionDAG::copyExtraInfo	(	SDNode *	From,
		SDNode *	To
	)

Copy extra info associated with one node to another.

Definition at line 13608 of file SelectionDAG.cpp.

References assert(), llvm::SmallPtrSetImplBase::clear(), llvm::detail::DenseSetImpl< ValueT, MapTy, ValueInfoT >::contains(), llvm::dbgs(), llvm::errs(), From, getEntryNode(), llvm::SDValue::getNode(), I, llvm::detail::DenseSetImpl< ValueT, MapTy, ValueInfoT >::insert(), llvm::SmallPtrSetImpl< PtrType >::insert(), LLVM_DEBUG, LLVM_LIKELY, MaxDepth, N, and std::swap().

Referenced by ReplaceAllUsesOfValuesWith(), ReplaceAllUsesOfValueWith(), and ReplaceAllUsesWith().

◆ CreateStackTemporary() [1/3]

SDValue SelectionDAG::CreateStackTemporary	(	EVT	VT,
		unsigned	minAlign = `1`
	)

Create a stack temporary, suitable for holding the specified value type.

If minAlign is specified, the slot size will have at least that alignment.

Definition at line 2768 of file SelectionDAG.cpp.

References CreateStackTemporary(), getContext(), getDataLayout(), getPrefTypeAlign(), llvm::EVT::getStoreSize(), and llvm::EVT::getTypeForEVT().

◆ CreateStackTemporary() [2/3]

SDValue SelectionDAG::CreateStackTemporary	(	EVT	VT1,
		EVT	VT2
	)

Create a stack temporary suitable for holding either of the specified value types.

Definition at line 2775 of file SelectionDAG.cpp.

References assert(), CreateStackTemporary(), DL, getContext(), getDataLayout(), llvm::details::FixedOrScalableQuantity< LeafTy, ValueTy >::getKnownMinValue(), llvm::EVT::getStoreSize(), llvm::EVT::getTypeForEVT(), and llvm::details::FixedOrScalableQuantity< LeafTy, ValueTy >::isScalable().

◆ CreateStackTemporary() [3/3]

SDValue SelectionDAG::CreateStackTemporary	(	TypeSize	Bytes,
		Align	Alignment
	)

Create a stack temporary based on the size in bytes and the alignment.

Definition at line 2755 of file SelectionDAG.cpp.

References llvm::MachineFrameInfo::CreateStackObject(), getDataLayout(), getFrameIndex(), llvm::TargetLoweringBase::getFrameIndexTy(), llvm::MachineFunction::getFrameInfo(), llvm::TargetSubtargetInfo::getFrameLowering(), llvm::details::FixedOrScalableQuantity< LeafTy, ValueTy >::getKnownMinValue(), llvm::TargetFrameLowering::getStackIDForScalableVectors(), llvm::MachineFunction::getSubtarget(), and llvm::details::FixedOrScalableQuantity< LeafTy, ValueTy >::isScalable().

Referenced by llvm::StatepointLoweringState::allocateStackSlot(), CreateStackTemporary(), expandMultipleResultFPLibCall(), llvm::TargetLowering::expandUnalignedLoad(), llvm::TargetLowering::expandUnalignedStore(), llvm::TargetLowering::expandVECTOR_COMPRESS(), llvm::TargetLowering::expandVectorSplice(), LowerATOMIC_STORE(), llvm::SystemZTargetLowering::LowerCall(), llvm::LoongArchTargetLowering::LowerCall(), llvm::RISCVTargetLowering::LowerCall(), llvm::ARMTargetLowering::PerformMVEExtCombine(), llvm::ARMTargetLowering::PerformMVETruncCombine(), llvm::RISCVDAGToDAGISel::PreprocessISelDAG(), and llvm::X86TargetLowering::ReplaceNodeResults().

◆ DbgBegin()

SDDbgInfo::DbgIterator llvm::SelectionDAG::DbgBegin ( ) const

inline

Definition at line 1869 of file SelectionDAG.h.

References llvm::SDDbgInfo::DbgBegin().

Referenced by dump(), and llvm::ScheduleDAGSDNodes::EmitSchedule().

◆ DbgEnd()

SDDbgInfo::DbgIterator llvm::SelectionDAG::DbgEnd ( ) const

inline

Definition at line 1870 of file SelectionDAG.h.

References llvm::SDDbgInfo::DbgEnd().

Referenced by dump(), and llvm::ScheduleDAGSDNodes::EmitSchedule().

◆ DbgLabelBegin()

SDDbgInfo::DbgLabelIterator llvm::SelectionDAG::DbgLabelBegin ( ) const

inline

Definition at line 1879 of file SelectionDAG.h.

References llvm::SDDbgInfo::DbgLabelBegin().

Referenced by llvm::ScheduleDAGSDNodes::EmitSchedule().

◆ DbgLabelEnd()

SDDbgInfo::DbgLabelIterator llvm::SelectionDAG::DbgLabelEnd ( ) const

inline

Definition at line 1882 of file SelectionDAG.h.

References llvm::SDDbgInfo::DbgLabelEnd().

Referenced by llvm::ScheduleDAGSDNodes::EmitSchedule().

◆ DeleteNode()

void SelectionDAG::DeleteNode ( SDNode * N )

Remove the specified node from the system.

This node must have no referrers.

Definition at line 1074 of file SelectionDAG.cpp.

References N.

Referenced by Legalize(), and llvm::SelectionDAGBuilder::LowerAsSTATEPOINT().

◆ doesNodeExist()

bool SelectionDAG::doesNodeExist	(	unsigned	Opcode,
		SDVTList	VTList,
		ArrayRef< SDValue >	Ops
	)

Check if a node exists without modifying its flags.

doesNodeExist - Check if a node exists without modifying its flags.

Definition at line 11290 of file SelectionDAG.cpp.

References AddNodeIDNode(), llvm::SDVTList::NumVTs, and llvm::SDVTList::VTs.

Referenced by llvm::TargetLowering::expandIntMINMAX(), foldAndOrOfSETCC(), and llvm::TargetLowering::SimplifySetCC().

◆ dump()

LLVM_DUMP_METHOD void SelectionDAG::dump ( ) const

Definition at line 1035 of file SelectionDAGDumper.cpp.

References allnodes(), ByvalParmDbgBegin(), ByvalParmDbgEnd(), DbgBegin(), DbgEnd(), llvm::dbgs(), DumpNodes(), getNode(), getRoot(), llvm::make_range(), N, shouldPrintInline(), and VerboseDAGDumping.

Referenced by NewSDValueDbgMsg(), llvm::AMDGPUDAGToDAGISel::PreprocessISelDAG(), and llvm::HexagonDAGToDAGISel::PreprocessISelDAG().

◆ dumpDotGraph()

LLVM_DUMP_METHOD void SelectionDAG::dumpDotGraph	(	const Twine &	FileName,
		const Twine &	Title
	)

Just dump dot graph to a user-provided path and title.

This doesn't open the dot viewer program and helps visualization when outside debugging session. FileName expects absolute path. If provided without any path separators then the file will be created in the current directory. Error will be emitted if the path is insane.

Definition at line 171 of file SelectionDAGPrinter.cpp.

References llvm::dumpDotGraphToFile().

◆ expandMultipleResultFPLibCall()

bool SelectionDAG::expandMultipleResultFPLibCall	(	RTLIB::Libcall	LC,
		SDNode *	Node,
		SmallVectorImpl< SDValue > &	Results,
		std::optional< unsigned >	CallRetResNo = `{}`
	)

Expands a node with multiple results to an FP or vector libcall.

The libcall is expected to take all the operands of the Node followed by output pointers for each of the results. CallRetResNo can be optionally set to indicate that one of the results comes from the libcall's return value.

Definition at line 2529 of file SelectionDAG.cpp.

◆ expandVAArg()

SDValue SelectionDAG::expandVAArg ( SDNode * Node )

Expand the specified ISD::VAARG node as the Legalize pass would.

Definition at line 2674 of file SelectionDAG.cpp.

References llvm::ISD::ADD, llvm::ISD::AND, getConstant(), getContext(), getDataLayout(), getLoad(), llvm::TargetLoweringBase::getMinStackArgumentAlignment(), getNode(), llvm::TargetLoweringBase::getPointerTy(), getSignedConstant(), getStore(), getTargetLoweringInfo(), llvm::EVT::getTypeForEVT(), llvm::SDValue::getValue(), and llvm::SDValue::getValueType().

◆ expandVACopy()

SDValue SelectionDAG::expandVACopy ( SDNode * Node )

Expand the specified ISD::VACOPY node as the Legalize pass would.

Definition at line 2708 of file SelectionDAG.cpp.

References getDataLayout(), getLoad(), llvm::TargetLoweringBase::getPointerTy(), getStore(), getTargetLoweringInfo(), and llvm::SDValue::getValue().

Referenced by LowerVACOPY().

◆ ExtractVectorElements()

void SelectionDAG::ExtractVectorElements	(	SDValue	Op,
		SmallVectorImpl< SDValue > &	Args,
		unsigned	Start = `0`,
		unsigned	Count = `0`,
		EVT	EltVT = `EVT()`
	)

Append the extracted elements from Start to Count out of the vector Op in Args.

If Count is 0, all of the elements will be extracted. The extracted elements will have type EVT if it is provided, and otherwise their type will be Op's element type.

Definition at line 13032 of file SelectionDAG.cpp.

References llvm::ISD::EXTRACT_VECTOR_ELT, getNode(), llvm::EVT::getVectorElementType(), getVectorIdxConstant(), and llvm::EVT::getVectorNumElements().

Referenced by adjustLoadValueTypeImpl(), llvm::TargetLowering::expandVecReduce(), llvm::TargetLowering::expandVecReduceSeq(), getDWordFromOffset(), llvm::AMDGPUTargetLowering::LowerCONCAT_VECTORS(), llvm::AMDGPUTargetLowering::LowerEXTRACT_SUBVECTOR(), llvm::AMDGPUTargetLowering::LowerSIGN_EXTEND_INREG(), padEltsToUndef(), ReplaceLoadVector(), UnrollVectorOverflowOp(), unrollVectorShift(), and widenVectorToPartType().

◆ FoldConstantArithmetic()

SDValue SelectionDAG::FoldConstantArithmetic	(	unsigned	Opcode,
		const SDLoc &	DL,
		EVT	VT,
		ArrayRef< SDValue >	Ops,
		SDNodeFlags	Flags = `SDNodeFlags()`
	)

Definition at line 6651 of file SelectionDAG.cpp.

References llvm::APInt::abs(), llvm::ISD::ABS, llvm::all_of(), llvm::ISD::ANY_EXTEND, llvm::APInt::ashrInPlace(), assert(), llvm::ISD::BF16_TO_FP, llvm::APFloatBase::BFloat(), llvm::ISD::BITCAST, llvm::ISD::BITREVERSE, llvm::EVT::bitsGT(), llvm::EVT::bitsLT(), llvm::ISD::BSWAP, llvm::ISD::BUILD_VECTOR, llvm::ISD::BUILTIN_OP_END, llvm::APInt::byteSwap(), llvm::CallingConv::C, llvm::ISD::CONCAT_VECTORS, llvm::ISD::CONDCODE, llvm::ISD::Constant, llvm::ISD::ConstantFP, llvm::APFloat::convert(), llvm::APFloat::convertFromAPInt(), llvm::APInt::countl_zero(), llvm::APInt::countr_zero(), llvm::ISD::CTLZ, llvm::ISD::CTLZ_ZERO_UNDEF, llvm::ISD::CTPOP, llvm::ISD::CTTZ, llvm::ISD::CTTZ_ZERO_UNDEF, DL, llvm::ISD::FABS, llvm::ISD::FCEIL, llvm::ISD::FFLOOR, llvm::ISD::FNEG, foldConstantFPMath(), FoldSTEP_VECTOR(), FoldSymbolOffset(), FoldValue(), FoldValueWithUndef(), llvm::ISD::FP16_TO_FP, llvm::ISD::FP_EXTEND, llvm::ISD::FP_TO_BF16, llvm::ISD::FP_TO_FP16, llvm::ISD::FP_TO_SINT, llvm::ISD::FP_TO_UINT, llvm::ISD::FTRUNC, getBitcast(), llvm::APInt::getBitWidth(), llvm::TargetLoweringBase::getBooleanContents(), getBuildVector(), getConstant(), getConstantFP(), getContext(), getDataLayout(), llvm::TargetLoweringBase::getExtendForContent(), llvm::details::FixedOrScalableQuantity< LeafTy, ValueTy >::getFixedValue(), llvm::EVT::getFltSemantics(), getNode(), llvm::SDValue::getOpcode(), getOpcode(), llvm::EVT::getScalarSizeInBits(), llvm::EVT::getScalarType(), llvm::EVT::getSizeInBits(), getSplatVector(), getStepVector(), llvm::TargetLoweringBase::getTypeAction(), llvm::TargetLoweringBase::getTypeToTransformTo(), getUNDEF(), llvm::SDValue::getValueType(), getValueType(), llvm::EVT::getVectorElementCount(), llvm::EVT::getVectorNumElements(), llvm::APInt::getZero(), I, llvm::APFloatBase::IEEEdouble(), llvm::APFloatBase::IEEEhalf(), llvm::APFloatBase::IEEEquad(), llvm::APFloatBase::IEEEsingle(), ignored(), llvm::ISD::isBuildVectorOfConstantSDNodes(), llvm::TargetLoweringBase::isCommutativeBinOp(), llvm::ISD::isConstantSplatVector(), llvm::EVT::isFixedLengthVector(), llvm::EVT::isInteger(), llvm::DataLayout::isLittleEndian(), llvm::details::FixedOrScalableQuantity< LeafTy, ValueTy >::isScalable(), llvm::TargetLoweringBase::isSExtCheaperThanZExt(), llvm::SDValue::isUndef(), isUndef(), llvm::EVT::isVector(), llvm::ISD::MUL, NewNodesMustHaveLegalTypes, NewSDValueDbgMsg(), llvm::APFloatBase::opInexact, llvm::APFloatBase::opInvalidOp, llvm::APFloatBase::opOK, llvm::peekThroughBitcasts(), llvm::APInt::popcount(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::BuildVectorSDNode::recastRawBits(), llvm::APInt::reverseBits(), llvm::APFloatBase::rmNearestTiesToEven, llvm::APFloatBase::rmTowardNegative, llvm::APFloatBase::rmTowardPositive, llvm::APFloatBase::rmTowardZero, llvm::ISD::SETCC, llvm::APInt::sextOrTrunc(), llvm::ISD::SHL, llvm::ISD::SIGN_EXTEND, llvm::ISD::SIGN_EXTEND_INREG, llvm::ISD::SINT_TO_FP, llvm::ArrayRef< T >::size(), llvm::SmallVectorBase< Size_T >::size(), llvm::ISD::SPLAT_VECTOR, llvm::ISD::STEP_VECTOR, llvm::APInt::trunc(), llvm::ISD::TRUNCATE, llvm::TargetLoweringBase::TypeLegal, llvm::ISD::UINT_TO_FP, llvm::ISD::ZERO_EXTEND, and llvm::APInt::zextOrTrunc().

Referenced by foldAddSubOfSignBit(), foldBinOpIntoSelectIfProfitable(), getNode(), getTargetVShiftByConstNode(), getTargetVShiftNode(), LowerRotate(), PromoteMaskArithmetic(), llvm::TargetLowering::SimplifyDemandedBits(), and llvm::TargetLowering::SimplifyDemandedVectorElts().

◆ foldConstantFPMath()

SDValue SelectionDAG::foldConstantFPMath	(	unsigned	Opcode,
		const SDLoc &	DL,
		EVT	VT,
		ArrayRef< SDValue >	Ops
	)

Fold floating-point operations when all operands are constants and/or undefined.

Definition at line 7076 of file SelectionDAG.cpp.

References llvm::APFloat::add(), llvm::APFloat::convert(), llvm::APFloat::copySign(), llvm::APFloat::divide(), DL, llvm::ISD::FADD, llvm::ISD::FCOPYSIGN, llvm::ISD::FDIV, llvm::ISD::FMAXIMUM, llvm::ISD::FMAXIMUMNUM, llvm::ISD::FMAXNUM, llvm::ISD::FMINIMUM, llvm::ISD::FMINIMUMNUM, llvm::ISD::FMINNUM, llvm::ISD::FMUL, llvm::ISD::FP_ROUND, llvm::ISD::FREM, llvm::ISD::FSUB, getConstantFP(), llvm::EVT::getFltSemantics(), llvm::APFloat::getNaN(), getUNDEF(), llvm::ConstantFPSDNode::getValueAPF(), llvm::isConstOrConstSplatFP(), llvm::SDValue::isUndef(), llvm::maximum(), llvm::maximumnum(), llvm::maxnum(), llvm::minimum(), llvm::minimumnum(), llvm::minnum(), llvm::APFloat::mod(), llvm::APFloat::multiply(), llvm::APFloatBase::rmNearestTiesToEven, llvm::ArrayRef< T >::size(), and llvm::APFloat::subtract().

Referenced by FoldConstantArithmetic().

◆ FoldSetCC()

SDValue SelectionDAG::FoldSetCC	(	EVT	VT,
		SDValue	N1,
		SDValue	N2,
		ISD::CondCode	Cond,
		const SDLoc &	dl
	)

Constant fold a setcc to true or false.

Definition at line 2792 of file SelectionDAG.cpp.

References assert(), llvm::APFloatBase::cmpEqual, llvm::APFloatBase::cmpGreaterThan, llvm::APFloatBase::cmpLessThan, llvm::APFloatBase::cmpUnordered, llvm::ICmpInst::compare(), Cond, getBoolConstant(), llvm::TargetLoweringBase::getBooleanContents(), getConstant(), llvm::getICmpCondCode(), llvm::EVT::getScalarType(), getSetCC(), llvm::ISD::getSetCCSwappedOperands(), llvm::EVT::getSimpleVT(), getUNDEF(), llvm::ISD::getUnorderedFlavor(), llvm::SDValue::getValueType(), llvm::TargetLoweringBase::isCondCodeLegal(), llvm::EVT::isFloatingPoint(), llvm::EVT::isInteger(), llvm::EVT::isSimple(), llvm::ISD::isTrueWhenEqual(), llvm::SDValue::isUndef(), llvm_unreachable, llvm::ISD::SETEQ, llvm::ISD::SETFALSE, llvm::ISD::SETFALSE2, llvm::ISD::SETGE, llvm::ISD::SETGT, llvm::ISD::SETLE, llvm::ISD::SETLT, llvm::ISD::SETNE, llvm::ISD::SETO, llvm::ISD::SETOEQ, llvm::ISD::SETOGE, llvm::ISD::SETOGT, llvm::ISD::SETOLE, llvm::ISD::SETOLT, llvm::ISD::SETONE, llvm::ISD::SETTRUE, llvm::ISD::SETTRUE2, llvm::ISD::SETUEQ, llvm::ISD::SETUGE, llvm::ISD::SETUGT, llvm::ISD::SETULE, llvm::ISD::SETULT, llvm::ISD::SETUNE, llvm::ISD::SETUO, and llvm::TargetLoweringBase::UndefinedBooleanContent.

Referenced by getNode(), and llvm::TargetLowering::SimplifySetCC().

◆ FoldSymbolOffset()

SDValue SelectionDAG::FoldSymbolOffset	(	unsigned	Opcode,
		EVT	VT,
		const GlobalAddressSDNode *	GA,
		const SDNode *	N2
	)

Definition at line 6606 of file SelectionDAG.cpp.

References llvm::ISD::ADD, llvm::GlobalAddressSDNode::getGlobal(), getGlobalAddress(), llvm::GlobalAddressSDNode::getOffset(), llvm::SDNode::getOpcode(), llvm::ISD::GlobalAddress, llvm::TargetLowering::isOffsetFoldingLegal(), llvm::Offset, and llvm::ISD::SUB.

Referenced by FoldConstantArithmetic().

◆ getAddrSpaceCast()

SDValue SelectionDAG::getAddrSpaceCast	(	const SDLoc &	dl,
		EVT	VT,
		SDValue	Ptr,
		unsigned	SrcAS,
		unsigned	DestAS
	)

Return an AddrSpaceCastSDNode.

Definition at line 2419 of file SelectionDAG.cpp.

References AddNodeIDNode(), llvm::ISD::ADDRSPACECAST, llvm::SDLoc::getDebugLoc(), llvm::SDLoc::getIROrder(), getVTList(), N, and Ptr.

Referenced by combineLoad(), combineStore(), llvm::SITargetLowering::LowerFormalArguments(), llvm::NVPTXTargetLowering::LowerSTACKRESTORE(), llvm::NVPTXTargetLowering::LowerSTACKSAVE(), and UnrollVectorOp().

◆ getAllOnesConstant()

SDValue SelectionDAG::getAllOnesConstant	(	const SDLoc &	DL,
		EVT	VT,
		bool	IsTarget = `false`,
		bool	IsOpaque = `false`
	)

Definition at line 1779 of file SelectionDAG.cpp.

References DL, llvm::APInt::getAllOnes(), getConstant(), and llvm::EVT::getScalarSizeInBits().

◆ getAnyExtOrTrunc()

SDValue SelectionDAG::getAnyExtOrTrunc	(	SDValue	Op,
		const SDLoc &	DL,
		EVT	VT
	)

Convert Op, which must be of integer type, to the integer type VT, by either any-extending or truncating it.

Definition at line 1475 of file SelectionDAG.cpp.

References llvm::ISD::ANY_EXTEND, llvm::EVT::bitsGT(), DL, getNode(), and llvm::ISD::TRUNCATE.

Referenced by combineBitcast(), combineExtractVectorElt(), combineScalarToVector(), combineStore(), combineToExtendBoolVectorInReg(), createMMXBuildVector(), llvm::SystemZSelectionDAGInfo::EmitTargetCodeForMemset(), llvm::WebAssemblySelectionDAGInfo::EmitTargetCodeForMemset(), getBitcastedAnyExtOrTrunc(), getCopyFromPartsVector(), getCopyToPartsVector(), getExtOrTrunc(), getNode(), getVectorBitwiseReduce(), LowerBuildVectorAsInsert(), LowerBuildVectorv16i8(), LowerFunnelShift(), lowerLaneOp(), LowerMUL(), LowervXi8MulWithUNPCK(), performBuildShuffleExtendCombine(), PerformVSELECTCombine(), and llvm::HexagonTargetLowering::ReplaceNodeResults().

◆ getAssertAlign()

SDValue SelectionDAG::getAssertAlign	(	const SDLoc &	DL,
		SDValue	V,
		Align	A
	)

Return an AssertAlignSDNode.

Definition at line 7159 of file SelectionDAG.cpp.

References A, AddNodeIDNode(), assert(), llvm::ISD::AssertAlign, DL, llvm::SDValue::getValueType(), getVTList(), llvm::EVT::isInteger(), N, and NewSDValueDbgMsg().

◆ getAtomic() [1/3]

SDValue SelectionDAG::getAtomic	(	unsigned	Opcode,
		const SDLoc &	dl,
		EVT	MemVT,
		EVT	VT,
		SDValue	Chain,
		SDValue	Ptr,
		MachineMemOperand *	MMO
	)

Gets a node for an atomic op, produces result and chain and takes 1 operand.

Definition at line 9002 of file SelectionDAG.cpp.

References assert(), llvm::ISD::ATOMIC_LOAD, getAtomic(), getVTList(), and Ptr.

◆ getAtomic() [2/3]

SDValue SelectionDAG::getAtomic	(	unsigned	Opcode,
		const SDLoc &	dl,
		EVT	MemVT,
		SDValue	Chain,
		SDValue	Ptr,
		SDValue	Val,
		MachineMemOperand *	MMO
	)

Gets a node for an atomic op, produces result (if relevant) and chain and takes 2 operands.

Definition at line 8976 of file SelectionDAG.cpp.

Referenced by combineSetCCAtomicArith(), getAtomic(), getAtomicCmpSwap(), LowerATOMIC_STORE(), llvm::VETargetLowering::lowerATOMIC_SWAP(), lowerAtomicArith(), and tryToFoldExtOfAtomicLoad().

◆ getAtomic() [3/3]

SDValue SelectionDAG::getAtomic	(	unsigned	Opcode,
		const SDLoc &	dl,
		EVT	MemVT,
		SDVTList	VTList,
		ArrayRef< SDValue >	Ops,
		MachineMemOperand *	MMO
	)

Gets a node for an atomic op, produces result and chain and takes N operands.

Definition at line 8941 of file SelectionDAG.cpp.

References AddNodeIDNode(), llvm::MachinePointerInfo::getAddrSpace(), llvm::SDLoc::getDebugLoc(), llvm::MachineMemOperand::getFlags(), llvm::SDLoc::getIROrder(), llvm::MachineMemOperand::getPointerInfo(), llvm::EVT::getRawBits(), and N.

◆ getAtomicCmpSwap()

SDValue SelectionDAG::getAtomicCmpSwap	(	unsigned	Opcode,
		const SDLoc &	dl,
		EVT	MemVT,
		SDVTList	VTs,
		SDValue	Chain,
		SDValue	Ptr,
		SDValue	Cmp,
		SDValue	Swp,
		MachineMemOperand *	MMO
	)

Gets a node for an atomic cmpxchg op.

There are two valid Opcodes. ISD::ATOMIC_CMO_SWAP produces the value loaded and a chain result. ISD::ATOMIC_CMP_SWAP_WITH_SUCCESS produces the value loaded, a success flag (initially i1), and a chain.

Definition at line 8964 of file SelectionDAG.cpp.

References assert(), llvm::ISD::ATOMIC_CMP_SWAP, llvm::ISD::ATOMIC_CMP_SWAP_WITH_SUCCESS, getAtomic(), llvm::SDValue::getValueType(), and Ptr.

◆ getAtomicMemcpy()

SDValue SelectionDAG::getAtomicMemcpy	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Dst,
		SDValue	Src,
		SDValue	Size,
		Type *	SizeTy,
		unsigned	ElemSz,
		bool	isTailCall,
		MachinePointerInfo	DstPtrInfo,
		MachinePointerInfo	SrcPtrInfo
	)

Definition at line 8647 of file SelectionDAG.cpp.

◆ getAtomicMemmove()

SDValue SelectionDAG::getAtomicMemmove	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Dst,
		SDValue	Src,
		SDValue	Size,
		Type *	SizeTy,
		unsigned	ElemSz,
		bool	isTailCall,
		MachinePointerInfo	DstPtrInfo,
		MachinePointerInfo	SrcPtrInfo
	)

Definition at line 8763 of file SelectionDAG.cpp.

◆ getAtomicMemset()

SDValue SelectionDAG::getAtomicMemset	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Dst,
		SDValue	Value,
		SDValue	Size,
		Type *	SizeTy,
		unsigned	ElemSz,
		bool	isTailCall,
		MachinePointerInfo	DstPtrInfo
	)

◆ getBasicBlock()

SDValue SelectionDAG::getBasicBlock ( MachineBasicBlock * MBB )

Definition at line 2003 of file SelectionDAG.cpp.

References AddNodeIDNode(), llvm::ISD::BasicBlock, getVTList(), MBB, and N.

Referenced by AddNodeIDCustom(), llvm::SelectionDAGBuilder::getValueImpl(), llvm::SelectionDAGBuilder::visitBitTestCase(), llvm::SelectionDAGBuilder::visitBitTestHeader(), llvm::SelectionDAGBuilder::visitJumpTableHeader(), llvm::SelectionDAGBuilder::visitSPDescriptorParent(), and llvm::SelectionDAGBuilder::visitSwitchCase().

◆ getBFI()

BlockFrequencyInfo * llvm::SelectionDAG::getBFI ( ) const

inline

Definition at line 511 of file SelectionDAG.h.

◆ getBitcast()

SDValue SelectionDAG::getBitcast	(	EVT	VT,
		SDValue	V
	)

Return a bitcast using the SDLoc of the value operand, and casting to the provided type.

Use getNode to set a custom SDLoc.

Definition at line 2412 of file SelectionDAG.cpp.

References llvm::ISD::BITCAST, and getNode().

Referenced by addShuffleForVecExtend(), adjustBitcastSrcVectorSSE1(), canonicalizeBitSelect(), canonicalizeLaneShuffleWithRepeatedOps(), canonicalizeShuffleMaskWithHorizOp(), canonicalizeShuffleVectorByLane(), canonicalizeShuffleWithOp(), combineAnd(), combineAndMaskToShift(), combineAndNotIntoANDNP(), combineAndnp(), combineAndShuffleNot(), combineArithReduction(), combineBasicSADPattern(), combineBitcast(), combineBitcastToBoolVector(), combineBitcastvxi1(), combineBitOpWithMOVMSK(), combineBitOpWithPACK(), combineBitOpWithShift(), combineBITREVERSE(), combineBlendOfPermutes(), combineBROADCAST_LOAD(), combineCastedMaskArithmetic(), combineCMP(), combineCompareEqual(), combineCONCAT_VECTORS(), combineConcatVectorOfExtracts(), combineConcatVectorOfScalars(), combineConcatVectorOps(), combineConstantPoolLoads(), combineCVTP2I_CVTTP2I(), combineCVTPH2PS(), combineEXTEND_VECTOR_INREG(), combineEXTRACT_SUBVECTOR(), combineExtractVectorElt(), combineExtractWithShuffle(), combineFaddCFmul(), combineFMulcFCMulc(), combineFneg(), combineFP_EXTEND(), combineFP_ROUND(), combineHorizOpWithShuffle(), combineLoad(), combineLogicBlendIntoConditionalNegate(), combineLogicBlendIntoPBLENDV(), combineMinMaxReduction(), combineMOVMSK(), combineMulToPMADDWD(), combineOr(), combinePMULDQ(), combinePMULH(), combinePredicateReduction(), combinePTESTCC(), combineRedundantDWordShuffle(), combineScalarAndWithMaskSetcc(), combineScalarToVector(), combineSelect(), combineSetCCMOVMSK(), combineShuffleOfBitcast(), combineShuffleToAnyExtendVectorInreg(), combineShuffleToZeroExtendVectorInReg(), combineSIntToFP(), combineStore(), combineTargetShuffle(), combineToExtendBoolVectorInReg(), combineToFPTruncExtElt(), combineTruncationShuffle(), combineVectorCompareAndMaskUnaryOp(), combineVectorHADDSUB(), combineVectorPack(), combineVectorShiftImm(), combineVectorSizedSetCCEquality(), combineVPDPBUSDPattern(), combineVSelectWithAllOnesOrZeros(), combineX86INT_TO_FP(), combineX86ShuffleChain(), combineX86ShuffleChainWithExtract(), combineX86ShufflesConstants(), combineX86ShufflesRecursively(), combineXor(), constructDup(), convertIntLogicToFPLogic(), convertShiftLeftToScale(), createMMXBuildVector(), EltsFromConsecutiveLoads(), expandBitCastF128ToI128(), expandBitCastI128ToF128(), llvm::TargetLowering::expandIS_FPCLASS(), llvm::TargetLowering::expandRoundInexactToOdd(), llvm::TargetLowering::expandUINT_TO_FP(), ExtractBitFromMaskVector(), FixupMMXIntrinsicTypes(), FoldConstantArithmetic(), FoldIntToFPToInt(), GeneratePerfectShuffle(), generateSToVPermutedForVecShuffle(), getAVX2GatherNode(), getBitcastedAnyExtOrTrunc(), getBitcastedSExtOrTrunc(), getBitcastedZExtOrTrunc(), getBuildDwordsVector(), getCanonicalConstSplat(), getConstVector(), getCopyFromPartsVector(), getCopyToPartsVector(), getDataClassTest(), getDeinterleaveShiftAndTrunc(), getFlagsOfCmpZeroFori1(), getMaskNode(), getMemsetValue(), llvm::X86TargetLowering::getNegatedExpression(), getOnesVector(), getPack(), getScalarMaskingNode(), getScalarValueForVectorElement(), getTargetVShiftByConstNode(), getTargetVShiftNode(), getv64i1Argument(), getVCIXISDNodeWCHAIN(), getVectorBitwiseReduce(), getVShift(), getWideningInterleave(), getWideningSpread(), getZeroVector(), llvm::TargetLowering::IncrementMemoryAddress(), isHorizontalBinOp(), IsNOT(), llvm::RISCVTargetLowering::joinRegisterPartsIntoValue(), llvm::SystemZTargetLowering::joinRegisterPartsIntoValue(), lower128BitShuffle(), lower256BitShuffle(), lower512BitShuffle(), LowerATOMIC_STORE(), LowerAVXExtend(), LowerBITCAST(), llvm::HexagonTargetLowering::LowerBITCAST(), LowerBITREVERSE(), LowerBITREVERSE_XOP(), lowerBitreverseShuffle(), lowerBUILD_VECTOR(), LowerBUILD_VECTORvXbf16(), LowerBUILD_VECTORvXi1(), lowerBuildVectorAsBroadcast(), LowerBuildVectorAsInsert(), lowerBuildVectorOfConstants(), LowerBuildVectorv16i8(), LowerBuildVectorv4x32(), llvm::HexagonTargetLowering::LowerCall(), LowerCTPOP(), LowerEXTEND_VECTOR_INREG(), llvm::VETargetLowering::lowerEXTRACT_VECTOR_ELT(), LowerEXTRACT_VECTOR_ELT_SSE4(), LowerFMINIMUM_FMAXIMUM(), llvm::SITargetLowering::LowerFormalArguments(), LowerFunnelShift(), LowerHorizontalByteSum(), llvm::VETargetLowering::lowerINSERT_VECTOR_ELT(), lowerLaneOp(), LowerLoad(), lowerMasksToReg(), LowerMUL(), LowerMULH(), llvm::RISCVTargetLowering::LowerOperation(), lowerRegToMasks(), llvm::HexagonTargetLowering::LowerReturn(), LowerRotate(), LowerSCALAR_TO_VECTOR(), LowerShift(), LowerShiftByScalarImmediate(), LowerShiftByScalarVariable(), lowerShuffleAsBitMask(), lowerShuffleAsBitRotate(), lowerShuffleAsBlend(), lowerShuffleAsBlendOfPSHUFBs(), lowerShuffleAsBroadcast(), lowerShuffleAsByteRotate(), lowerShuffleAsByteRotateAndPermute(), lowerShuffleAsByteShiftMask(), lowerShuffleAsElementInsertion(), lowerShuffleAsLanePermuteAndShuffle(), lowerShuffleAsPermuteAndUnpack(), lowerShuffleAsShift(), lowerShuffleAsSpecificZeroOrAnyExtend(), lowerShuffleAsVTRUNC(), lowerShuffleAsVTRUNCAndUnpack(), lowerShuffleAsZeroOrAnyExtend(), lowerShuffleWithPACK(), lowerShuffleWithPSHUFB(), lowerShuffleWithUNPCK256(), lowerShuffleWithVPMOV(), LowerStore(), LowerTruncateVecI1(), llvm::AMDGPUTargetLowering::LowerUDIVREM64(), LowerUINT_TO_FP_i32(), LowerUINT_TO_FP_i64(), lowerUINT_TO_FP_v2i32(), lowerUINT_TO_FP_vXi32(), lowerV16F32Shuffle(), lowerV16I32Shuffle(), lowerV16I8Shuffle(), lowerV2I64Shuffle(), lowerV4F32Shuffle(), lowerV4I32Shuffle(), lowerV4I64Shuffle(), lowerV8F16Shuffle(), lowerV8F32Shuffle(), lowerV8I16GeneralSingleInputShuffle(), lowerV8I16Shuffle(), lowerV8I32Shuffle(), lowerV8I64Shuffle(), llvm::HexagonTargetLowering::LowerVECTOR_SHUFFLE(), lowerVECTOR_SHUFFLE(), lowerVECTOR_SHUFFLEAsRotate(), lowerVECTOR_SHUFFLEAsVSlide1(), LowerVECTOR_SHUFFLEUsingMovs(), LowerVectorAllEqual(), LowerVectorCTLZInRegLUT(), LowerVectorCTPOP(), lowerVectorIntrinsicScalars(), LowerVectorMatch(), LowerVSETCC(), LowervXi8MulWithUNPCK(), lowerX86FPLogicOp(), matchPERM(), narrowExtractedVectorBinOp(), narrowExtractedVectorSelect(), packImage16bitOpsToDwords(), Passv64i1ArgInRegs(), performCONCAT_VECTORSCombine(), performConcatVectorsCombine(), llvm::RISCVTargetLowering::PerformDAGCombine(), performUzpCombine(), performVECTOR_SHUFFLECombine(), processVCIXOperands(), llvm::AArch64TargetLowering::ReconstructShuffle(), reduceBuildVecToShuffleWithZero(), reduceMaskedLoadToScalarLoad(), reduceMaskedStoreToScalarStore(), reduceVMULWidth(), llvm::RISCVTargetLowering::ReplaceNodeResults(), llvm::X86TargetLowering::ReplaceNodeResults(), scalarizeVectorStore(), llvm::TargetLowering::SimplifyDemandedBits(), llvm::X86TargetLowering::SimplifyDemandedBitsForTargetNode(), llvm::TargetLowering::SimplifyDemandedVectorElts(), llvm::X86TargetLowering::SimplifyDemandedVectorEltsForTargetNode(), llvm::X86TargetLowering::SimplifyDemandedVectorEltsForTargetShuffle(), llvm::TargetLowering::SimplifyMultipleUseDemandedBits(), llvm::X86TargetLowering::SimplifyMultipleUseDemandedBitsForTargetNode(), splitAndLowerShuffle(), llvm::RISCVTargetLowering::splitValueIntoRegisterParts(), llvm::SystemZTargetLowering::splitValueIntoRegisterParts(), takeInexpensiveLog2(), truncateVectorWithNARROW(), truncateVectorWithPACK(), tryWidenMaskForShuffle(), llvm::X86TargetLowering::visitMaskedLoad(), and llvm::X86TargetLowering::visitMaskedStore().

◆ getBitcastedAnyExtOrTrunc()

SDValue SelectionDAG::getBitcastedAnyExtOrTrunc	(	SDValue	Op,
		const SDLoc &	DL,
		EVT	VT
	)

Convert Op, which must be of integer type, to the integer type VT, by first bitcasting (from potential vector) to corresponding scalar type then either any-extending or truncating it.

Definition at line 1493 of file SelectionDAG.cpp.

References assert(), DL, getAnyExtOrTrunc(), getBitcast(), llvm::EVT::getIntegerVT(), llvm::SDValue::getValueType(), llvm::EVT::isVector(), and Size.

Referenced by getDWordFromOffset(), and matchPERM().

◆ getBitcastedSExtOrTrunc()

SDValue SelectionDAG::getBitcastedSExtOrTrunc	(	SDValue	Op,
		const SDLoc &	DL,
		EVT	VT
	)

Convert Op, which must be of integer type, to the integer type VT, by first bitcasting (from potential vector) to corresponding scalar type then either sign-extending or truncating it.

Definition at line 1508 of file SelectionDAG.cpp.

References assert(), DL, getBitcast(), llvm::MVT::getIntegerVT(), getSExtOrTrunc(), llvm::SDValue::getValueType(), llvm::EVT::isVector(), and Size.

◆ getBitcastedZExtOrTrunc()

SDValue SelectionDAG::getBitcastedZExtOrTrunc	(	SDValue	Op,
		const SDLoc &	DL,
		EVT	VT
	)

Convert Op, which must be of integer type, to the integer type VT, by first bitcasting (from potential vector) to corresponding scalar type then either zero-extending or truncating it.

Definition at line 1523 of file SelectionDAG.cpp.

References assert(), DL, getBitcast(), llvm::MVT::getIntegerVT(), llvm::SDValue::getValueType(), getZExtOrTrunc(), llvm::EVT::isVector(), and Size.

◆ getBlockAddress()

SDValue SelectionDAG::getBlockAddress	(	const BlockAddress *	BA,
		EVT	VT,
		int64_t	Offset = `0`,
		bool	isTarget = `false`,
		unsigned	TargetFlags = `0`
	)

Definition at line 2361 of file SelectionDAG.cpp.

References AddNodeIDNode(), llvm::ISD::BlockAddress, getVTList(), N, llvm::Offset, and llvm::ISD::TargetBlockAddress.

Referenced by getTargetBlockAddress(), llvm::SelectionDAGBuilder::getValueImpl(), and llvm::LanaiTargetLowering::LowerBlockAddress().

◆ getBoolConstant()

SDValue SelectionDAG::getBoolConstant	(	bool	V,
		const SDLoc &	DL,
		EVT	VT,
		EVT	OpVT
	)

Create a true or false constant of type VT using the target's BooleanContent for type OpVT.

Definition at line 1630 of file SelectionDAG.cpp.

References DL, getAllOnesConstant(), llvm::TargetLoweringBase::getBooleanContents(), getConstant(), llvm_unreachable, llvm::TargetLoweringBase::UndefinedBooleanContent, llvm::TargetLoweringBase::ZeroOrNegativeOneBooleanContent, and llvm::TargetLoweringBase::ZeroOrOneBooleanContent.

Referenced by llvm::TargetLowering::expandIS_FPCLASS(), expandMultipleResultFPLibCall(), FoldSetCC(), getDataClassTest(), getLogicalNOT(), getVPLogicalNOT(), performSETCCCombine(), llvm::TargetLowering::SimplifySetCC(), and UnrollVectorOverflowOp().

◆ getBoolExtOrTrunc()

SDValue SelectionDAG::getBoolExtOrTrunc	(	SDValue	Op,
		const SDLoc &	SL,
		EVT	VT,
		EVT	OpVT
	)

Convert Op, which must be of integer type, to the integer type VT, by using an extension appropriate for the target's BooleanContent for type OpVT or truncating it.

Definition at line 1538 of file SelectionDAG.cpp.

References llvm::EVT::bitsLE(), llvm::TargetLoweringBase::getBooleanContents(), llvm::TargetLoweringBase::getExtendForContent(), getNode(), and llvm::ISD::TRUNCATE.

Referenced by combineCarryDiamond(), combineSelectAsExtAnd(), llvm::TargetLowering::expandFP_TO_UINT(), llvm::TargetLowering::expandSADDSUBO(), llvm::TargetLowering::expandUADDSUBO(), and llvm::TargetLowering::SimplifySetCC().

◆ getBuildVector() [1/2]

SDValue llvm::SelectionDAG::getBuildVector	(	EVT	VT,
		const SDLoc &	DL,
		ArrayRef< SDUse >	Ops
	)

inline

Return an ISD::BUILD_VECTOR node.

The number of elements in VT, which must be a vector type, must match the number of operands in Ops. The operands must have the same type as (or, for integers, a type wider than) VT's element type.

Definition at line 863 of file SelectionDAG.h.

References llvm::ISD::BUILD_VECTOR, DL, and getNode().

◆ getBuildVector() [2/2]

SDValue llvm::SelectionDAG::getBuildVector	(	EVT	VT,
		const SDLoc &	DL,
		ArrayRef< SDValue >	Ops
	)

inline

Return an ISD::BUILD_VECTOR node.

The number of elements in VT, which must be a vector type, must match the number of operands in Ops. The operands must have the same type as (or, for integers, a type wider than) VT's element type.

Definition at line 854 of file SelectionDAG.h.

References llvm::ISD::BUILD_VECTOR, DL, and getNode().

◆ getCALLSEQ_END() [1/2]

SDValue llvm::SelectionDAG::getCALLSEQ_END	(	SDValue	Chain,
		SDValue	Op1,
		SDValue	Op2,
		SDValue	InGlue,
		const SDLoc &	DL
	)

inline

Return a new CALLSEQ_END node, which always must have a glue result (to ensure it's not CSE'd).

CALLSEQ_END does not have a useful SDLoc.

Definition at line 1103 of file SelectionDAG.h.

References llvm::ISD::CALLSEQ_END, DL, llvm::SDValue::getNode(), getNode(), getVTList(), and llvm::SmallVectorTemplateBase< T, bool >::push_back().

◆ getCALLSEQ_END() [2/2]

SDValue llvm::SelectionDAG::getCALLSEQ_END	(	SDValue	Chain,
		uint64_t	Size1,
		uint64_t	Size2,
		SDValue	Glue,
		const SDLoc &	DL
	)

inline

Definition at line 1115 of file SelectionDAG.h.

References DL, getCALLSEQ_END(), and getIntPtrConstant().

◆ getCALLSEQ_START()

SDValue llvm::SelectionDAG::getCALLSEQ_START	(	SDValue	Chain,
		uint64_t	InSize,
		uint64_t	OutSize,
		const SDLoc &	DL
	)

inline

Return a new CALLSEQ_START node, that starts new call frame, in which InSize bytes are set up inside CALLSEQ_START..CALLSEQ_END sequence and OutSize specifies part of the frame set up prior to the sequence.

Definition at line 1091 of file SelectionDAG.h.

References llvm::ISD::CALLSEQ_START, DL, getIntPtrConstant(), getNode(), and getVTList().

◆ getCallSiteInfo()

CallSiteInfo llvm::SelectionDAG::getCallSiteInfo ( const SDNode * Node )

inline

Return CallSiteInfo associated with Node, or a default if none exists.

Definition at line 2344 of file SelectionDAG.h.

References llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::end(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find(), and I.

Referenced by llvm::ScheduleDAGSDNodes::EmitSchedule().

◆ getCommutedVectorShuffle()

SDValue SelectionDAG::getCommutedVectorShuffle ( const ShuffleVectorSDNode & SV )

Returns an ISD::VECTOR_SHUFFLE node semantically equivalent to the shuffle node in input but with swapped operands.

Example: shuffle A, B, <0,5,2,7> -> shuffle B, A, <4,1,6,3>

Definition at line 2297 of file SelectionDAG.cpp.

References llvm::ShuffleVectorSDNode::commuteMask(), llvm::ShuffleVectorSDNode::getMask(), llvm::SDNode::getOperand(), llvm::SDNode::getValueType(), and getVectorShuffle().

Referenced by lowerVECTOR_SHUFFLE().

◆ getCondCode()

SDValue SelectionDAG::getCondCode ( ISD::CondCode Cond )

◆ getConstant() [1/3]

SDValue SelectionDAG::getConstant	(	const APInt &	Val,
		const SDLoc &	DL,
		EVT	VT,
		bool	isTarget = `false`,
		bool	isOpaque = `false`
	)

Definition at line 1651 of file SelectionDAG.cpp.

References DL, and getConstant().

◆ getConstant() [2/3]

SDValue SelectionDAG::getConstant	(	const ConstantInt &	Val,
		const SDLoc &	DL,
		EVT	VT,
		bool	isTarget = `false`,
		bool	isOpaque = `false`
	)

Definition at line 1656 of file SelectionDAG.cpp.

References AddNodeIDNode(), llvm::append_range(), assert(), llvm::SmallVectorTemplateCommon< T, typename >::begin(), llvm::ISD::BITCAST, llvm::ISD::Constant, DL, llvm::SmallVectorTemplateCommon< T, typename >::end(), llvm::APInt::extractBits(), llvm::ConstantInt::getBitWidth(), getBuildVector(), getConstant(), getContext(), getDataLayout(), getNode(), llvm::EVT::getScalarType(), llvm::EVT::getSizeInBits(), getSplat(), llvm::Value::getType(), llvm::TargetLoweringBase::getTypeAction(), llvm::TargetLoweringBase::getTypeToTransformTo(), llvm::ConstantInt::getValue(), llvm::EVT::getVectorNumElements(), llvm::EVT::getVectorVT(), getVTList(), isBigEndian(), llvm::EVT::isInteger(), llvm::TargetLoweringBase::isOperationLegal(), llvm::EVT::isScalableVector(), llvm::TargetLoweringBase::isSExtCheaperThanZExt(), llvm::EVT::isVector(), N, NewNodesMustHaveLegalTypes, NewSDValueDbgMsg(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::APInt::sextOrTrunc(), llvm::ISD::SPLAT_VECTOR, llvm::ISD::SPLAT_VECTOR_PARTS, llvm::ISD::TargetConstant, llvm::TargetLoweringBase::TypeExpandInteger, llvm::TargetLoweringBase::TypePromoteInteger, and llvm::APInt::zextOrTrunc().

◆ getConstant() [3/3]

SDValue SelectionDAG::getConstant	(	uint64_t	Val,
		const SDLoc &	DL,
		EVT	VT,
		bool	isTarget = `false`,
		bool	isOpaque = `false`
	)

Create a ConstantSDNode wrapping a constant value.

If VT is a vector type, the constant is splatted into a BUILD_VECTOR.

If only legal types can be produced, this does the necessary transformations (e.g., if the vector element type is illegal).

Definition at line 1645 of file SelectionDAG.cpp.

References DL, getConstant(), and llvm::EVT::getScalarSizeInBits().

◆ getConstantDbgValue()

SDDbgValue * SelectionDAG::getConstantDbgValue	(	DIVariable *	Var,
		DIExpression *	Expr,
		const Value *	C,
		const DebugLoc &	DL,
		unsigned	O
	)

Creates a constant SDDbgValue node.

Constant.

Definition at line 11317 of file SelectionDAG.cpp.

References assert(), llvm::CallingConv::C, DL, llvm::SDDbgOperand::fromConst(), and llvm::SDDbgInfo::getAlloc().

Referenced by llvm::SelectionDAGBuilder::resolveDanglingDebugInfo(), and llvm::SelectionDAGBuilder::salvageUnresolvedDbgValue().

◆ getConstantFP() [1/3]

SDValue SelectionDAG::getConstantFP	(	const APFloat &	Val,
		const SDLoc &	DL,
		EVT	VT,
		bool	isTarget = `false`
	)

Definition at line 1808 of file SelectionDAG.cpp.

References DL, getConstantFP(), and getContext().

◆ getConstantFP() [2/3]

SDValue SelectionDAG::getConstantFP	(	const ConstantFP &	V,
		const SDLoc &	DL,
		EVT	VT,
		bool	isTarget = `false`
	)

Definition at line 1813 of file SelectionDAG.cpp.

References AddNodeIDNode(), assert(), llvm::ISD::ConstantFP, DL, getContext(), llvm::EVT::getScalarType(), getSplat(), llvm::Value::getType(), llvm::ConstantFP::getValue(), getVTList(), llvm::EVT::isFloatingPoint(), llvm::EVT::isVector(), N, NewSDValueDbgMsg(), and llvm::ISD::TargetConstantFP.

◆ getConstantFP() [3/3]

SDValue SelectionDAG::getConstantFP	(	double	Val,
		const SDLoc &	DL,
		EVT	VT,
		bool	isTarget = `false`
	)

Create a ConstantFPSDNode wrapping a constant value.

If VT is a vector type, the constant is splatted into a BUILD_VECTOR.

If only legal types can be produced, this does the necessary transformations (e.g., if the vector element type is illegal). The forms that take a double should only be used for simple constants that can be exactly represented in VT. No checks are made.

Definition at line 1852 of file SelectionDAG.cpp.

References llvm::APFloat::convert(), DL, getConstantFP(), llvm::EVT::getFltSemantics(), llvm::EVT::getScalarType(), llvm_unreachable, and llvm::APFloatBase::rmNearestTiesToEven.

◆ getConstantPool() [1/2]

SDValue SelectionDAG::getConstantPool	(	const Constant *	C,
		EVT	VT,
		MaybeAlign	Align = `std::nullopt`,
		int	Offs = `0`,
		bool	isT = `false`,
		unsigned	TargetFlags = `0`
	)

◆ getConstantPool() [2/2]

SDValue SelectionDAG::getConstantPool	(	MachineConstantPoolValue *	C,
		EVT	VT,
		MaybeAlign	Align = `std::nullopt`,
		int	Offs = `0`,
		bool	isT = `false`,
		unsigned	TargetFlags = `0`
	)

Definition at line 1977 of file SelectionDAG.cpp.

References AddNodeIDNode(), assert(), llvm::CallingConv::C, llvm::ISD::ConstantPool, getDataLayout(), llvm::DataLayout::getPrefTypeAlign(), getVTList(), N, llvm::Offset, and llvm::ISD::TargetConstantPool.

◆ getContext()

LLVMContext * llvm::SelectionDAG::getContext ( ) const

inline

Definition at line 508 of file SelectionDAG.h.

◆ getCopyFromReg() [1/2]

SDValue llvm::SelectionDAG::getCopyFromReg	(	SDValue	Chain,
		const SDLoc &	dl,
		Register	Reg,
		EVT	VT
	)

inline

Definition at line 825 of file SelectionDAG.h.

References llvm::ISD::CopyFromReg, getNode(), getRegister(), getVTList(), and Reg.

◆ getCopyFromReg() [2/2]

SDValue llvm::SelectionDAG::getCopyFromReg	(	SDValue	Chain,
		const SDLoc &	dl,
		Register	Reg,
		EVT	VT,
		SDValue	Glue
	)

inline

Definition at line 834 of file SelectionDAG.h.

References llvm::ISD::CopyFromReg, llvm::SDValue::getNode(), getNode(), getRegister(), getVTList(), and Reg.

◆ getCopyToReg() [1/3]

SDValue llvm::SelectionDAG::getCopyToReg	(	SDValue	Chain,
		const SDLoc &	dl,
		Register	Reg,
		SDValue	N
	)

inline

Definition at line 799 of file SelectionDAG.h.

References llvm::ISD::CopyToReg, getNode(), getRegister(), N, and Reg.

◆ getCopyToReg() [2/3]

SDValue llvm::SelectionDAG::getCopyToReg	(	SDValue	Chain,
		const SDLoc &	dl,
		Register	Reg,
		SDValue	N,
		SDValue	Glue
	)

inline

Definition at line 808 of file SelectionDAG.h.

References llvm::ISD::CopyToReg, llvm::SDValue::getNode(), getNode(), getRegister(), getVTList(), N, and Reg.

◆ getCopyToReg() [3/3]

SDValue llvm::SelectionDAG::getCopyToReg	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Reg,
		SDValue	N,
		SDValue	Glue
	)

inline

Definition at line 817 of file SelectionDAG.h.

References llvm::ISD::CopyToReg, llvm::SDValue::getNode(), getNode(), getVTList(), N, and Reg.

◆ getDataLayout()

const DataLayout & llvm::SelectionDAG::getDataLayout ( ) const

inline

Definition at line 495 of file SelectionDAG.h.

References llvm::MachineFunction::getDataLayout().

◆ getDbgLabel()

SDDbgLabel * SelectionDAG::getDbgLabel	(	DILabel *	Label,
		const DebugLoc &	DL,
		unsigned	O
	)

Creates a SDDbgLabel node.

Definition at line 11595 of file SelectionDAG.cpp.

References assert(), DL, and llvm::SDDbgInfo::getAlloc().

Referenced by llvm::SelectionDAGBuilder::visitDbgInfo().

◆ getDbgValue()

SDDbgValue * SelectionDAG::getDbgValue	(	DIVariable *	Var,
		DIExpression *	Expr,
		SDNode *	N,
		unsigned	R,
		bool	IsIndirect,
		const DebugLoc &	DL,
		unsigned	O
	)

Creates a SDDbgValue node.

getDbgValue - Creates a SDDbgValue node.

SDNode

Definition at line 11305 of file SelectionDAG.cpp.

References assert(), DL, llvm::SDDbgOperand::fromNode(), llvm::SDDbgInfo::getAlloc(), and N.

Referenced by llvm::SelectionDAGBuilder::handleDebugDeclare().

◆ getDbgValueList()

SDDbgValue * SelectionDAG::getDbgValueList	(	DIVariable *	Var,
		DIExpression *	Expr,
		ArrayRef< SDDbgOperand >	Locs,
		ArrayRef< SDNode * >	Dependencies,
		bool	IsIndirect,
		const DebugLoc &	DL,
		unsigned	O,
		bool	IsVariadic
	)

Creates a SDDbgValue node from a list of locations.

Definition at line 11367 of file SelectionDAG.cpp.

References assert(), DL, and llvm::SDDbgInfo::getAlloc().

Referenced by handleDanglingVariadicDebugInfo(), llvm::SelectionDAGBuilder::handleDebugValue(), salvageDebugInfo(), and transferDbgValues().

◆ GetDbgValues()

ArrayRef< SDDbgValue * > llvm::SelectionDAG::GetDbgValues ( const SDNode * SD ) const

inline

Get the debug values which reference the given SDNode.

Definition at line 1860 of file SelectionDAG.h.

References llvm::SDDbgInfo::getSDDbgValues().

Referenced by ProcessSDDbgValues(), salvageDebugInfo(), and transferDbgValues().

◆ getDenormalMode()

DenormalMode llvm::SelectionDAG::getDenormalMode ( EVT VT ) const

inline

Return the current function's default denormal handling kind for the given floating point type.

Definition at line 2392 of file SelectionDAG.h.

References llvm::MachineFunction::getDenormalMode(), and llvm::EVT::getFltSemantics().

◆ GetDependentSplitDestVTs()

std::pair< EVT, EVT > SelectionDAG::GetDependentSplitDestVTs	(	const EVT &	VT,
		const EVT &	EnvVT,
		bool *	HiIsEmpty
	)		const

Compute the VTs needed for the low/hi parts of a type, dependent on an enveloping VT that has been split into two identical pieces.

GetDependentSplitDestVTs - Compute the VTs needed for the low/hi parts of a type, dependent on an enveloping VT that has been split into two identical pieces.

Sets the HisIsEmpty flag when hi type has zero storage size.

Sets the HiIsEmpty flag when hi type has zero storage size.

Definition at line 12955 of file SelectionDAG.cpp.

References assert(), getContext(), llvm::details::FixedOrScalableQuantity< LeafTy, ValueTy >::getKnownMinValue(), llvm::EVT::getVectorElementCount(), llvm::EVT::getVectorElementType(), llvm::EVT::getVectorVT(), and llvm::details::FixedOrScalableQuantity< LeafTy, ValueTy >::isScalable().

◆ getEHLabel()

SDValue SelectionDAG::getEHLabel	(	const SDLoc &	dl,
		SDValue	Root,
		MCSymbol *	Label
	)

Definition at line 2337 of file SelectionDAG.cpp.

References llvm::ISD::EH_LABEL, and getLabelNode().

◆ getElementCount()

SDValue SelectionDAG::getElementCount	(	const SDLoc &	DL,
		EVT	VT,
		ElementCount	EC,
		bool	ConstantFold = `true`
	)

Definition at line 2090 of file SelectionDAG.cpp.

References DL, getConstant(), llvm::EVT::getSizeInBits(), and getVScale().

Referenced by llvm::RISCVTargetLowering::computeVLMax(), lowerCttzElts(), and llvm::RISCVTargetLowering::PerformDAGCombine().

◆ getEntryNode()

SDValue llvm::SelectionDAG::getEntryNode ( ) const

inline

Return the token chain corresponding to the entry of the function.

Definition at line 578 of file SelectionDAG.h.

◆ getEVTAlign()

Align SelectionDAG::getEVTAlign ( EVT MemoryVT ) const

Compute the default alignment value for the given type.

Definition at line 1337 of file SelectionDAG.cpp.

References llvm::PointerType::get(), llvm::DataLayout::getABITypeAlign(), getContext(), getDataLayout(), and llvm::EVT::getTypeForEVT().

Referenced by getLoad(), getLoadStackGuard(), getLoadVP(), getMemIntrinsicNode(), getStore(), and getTruncStore().

◆ getExternalSymbol()

SDValue SelectionDAG::getExternalSymbol	(	const char *	Sym,
		EVT	VT
	)

◆ getExtLoad() [1/2]

SDValue SelectionDAG::getExtLoad	(	ISD::LoadExtType	ExtType,
		const SDLoc &	dl,
		EVT	VT,
		SDValue	Chain,
		SDValue	Ptr,
		EVT	MemVT,
		MachineMemOperand *	MMO
	)

Definition at line 9277 of file SelectionDAG.cpp.

References getLoad(), getUNDEF(), Ptr, and llvm::ISD::UNINDEXED.

◆ getExtLoad() [2/2]

SDValue SelectionDAG::getExtLoad	(	ISD::LoadExtType	ExtType,
		const SDLoc &	dl,
		EVT	VT,
		SDValue	Chain,
		SDValue	Ptr,
		MachinePointerInfo	PtrInfo,
		EVT	MemVT,
		MaybeAlign	Alignment = `MaybeAlign()`,
		MachineMemOperand::Flags	MMOFlags = `MachineMemOperand::MONone`,
		const AAMDNodes &	AAInfo = `AAMDNodes()`
	)

Definition at line 9266 of file SelectionDAG.cpp.

References getLoad(), getUNDEF(), Ptr, and llvm::ISD::UNINDEXED.

Referenced by adjustSubwordCmp(), combineEXTEND_VECTOR_INREG(), combineLoad(), llvm::TargetLowering::CTTZTableLookup(), llvm::TargetLowering::expandUnalignedLoad(), llvm::TargetLowering::expandUnalignedStore(), getMemcpyLoadsAndStores(), LowerPredicateLoad(), lowerVECTOR_SHUFFLE(), llvm::RISCVTargetLowering::PerformDAGCombine(), performFPExtendCombine(), llvm::ARMTargetLowering::PerformMVEExtCombine(), PerformVMOVrhCombine(), llvm::RISCVTargetLowering::ReplaceNodeResults(), llvm::SparcTargetLowering::ReplaceNodeResults(), llvm::TargetLowering::scalarizeVectorLoad(), SkipLoadExtensionForVMULL(), llvm::AMDGPUTargetLowering::SplitVectorLoad(), tryToFoldExtOfExtload(), tryToFoldExtOfLoad(), unpackFromMemLoc(), and llvm::AMDGPUTargetLowering::WidenOrSplitVectorLoad().

◆ getExtLoadVP() [1/2]

SDValue SelectionDAG::getExtLoadVP	(	ISD::LoadExtType	ExtType,
		const SDLoc &	dl,
		EVT	VT,
		SDValue	Chain,
		SDValue	Ptr,
		SDValue	Mask,
		SDValue	EVL,
		EVT	MemVT,
		MachineMemOperand *	MMO,
		bool	IsExpanding = `false`
	)

Definition at line 9538 of file SelectionDAG.cpp.

References getLoadVP(), getUNDEF(), Ptr, and llvm::ISD::UNINDEXED.

◆ getExtLoadVP() [2/2]

SDValue SelectionDAG::getExtLoadVP	(	ISD::LoadExtType	ExtType,
		const SDLoc &	dl,
		EVT	VT,
		SDValue	Chain,
		SDValue	Ptr,
		SDValue	Mask,
		SDValue	EVL,
		MachinePointerInfo	PtrInfo,
		EVT	MemVT,
		MaybeAlign	Alignment,
		MachineMemOperand::Flags	MMOFlags,
		const AAMDNodes &	AAInfo,
		bool	IsExpanding = `false`
	)

Definition at line 9525 of file SelectionDAG.cpp.

References getLoadVP(), getUNDEF(), Ptr, and llvm::ISD::UNINDEXED.

◆ getExtOrTrunc() [1/2]

SDValue llvm::SelectionDAG::getExtOrTrunc	(	bool	IsSigned,
		SDValue	Op,
		const SDLoc &	DL,
		EVT	VT
	)

inline

Convert Op, which must be of integer type, to the integer type VT, by either sign/zero-extending (depending on IsSigned) or truncating it.

Definition at line 996 of file SelectionDAG.h.

References DL, getSExtOrTrunc(), and getZExtOrTrunc().

◆ getExtOrTrunc() [2/2]

SDValue llvm::SelectionDAG::getExtOrTrunc	(	SDValue	Op,
		const SDLoc &	DL,
		EVT	VT,
		unsigned	Opcode
	)

inline

Convert Op, which must be of integer type, to the integer type VT, by either any/sign/zero-extending (depending on IsAny / IsSigned) or truncating it.

Definition at line 980 of file SelectionDAG.h.

References llvm::ISD::ANY_EXTEND, DL, getAnyExtOrTrunc(), getSExtOrTrunc(), getZExtOrTrunc(), llvm_unreachable, llvm::ISD::SIGN_EXTEND, and llvm::ISD::ZERO_EXTEND.

Referenced by combineShiftToAVG(), combineShiftToMULH(), earlyExpandDIVFIX(), expandDivFix(), LowerShift(), and PerformMinMaxFpToSatCombine().

◆ getExtStridedLoadVP()

SDValue SelectionDAG::getExtStridedLoadVP	(	ISD::LoadExtType	ExtType,
		const SDLoc &	DL,
		EVT	VT,
		SDValue	Chain,
		SDValue	Ptr,
		SDValue	Stride,
		SDValue	Mask,
		SDValue	EVL,
		EVT	MemVT,
		MachineMemOperand *	MMO,
		bool	IsExpanding = `false`
	)

Definition at line 9743 of file SelectionDAG.cpp.

References DL, getStridedLoadVP(), getUNDEF(), Ptr, and llvm::ISD::UNINDEXED.

◆ getFlagInserter()

FlagInserter * llvm::SelectionDAG::getFlagInserter ( )

inline

Definition at line 514 of file SelectionDAG.h.

◆ getFPExtendOrRound()

SDValue SelectionDAG::getFPExtendOrRound	(	SDValue	Op,
		const SDLoc &	DL,
		EVT	VT
	)

Convert Op, which must be of float type, to the float type VT, by either extending or rounding (by truncation).

Definition at line 1454 of file SelectionDAG.cpp.

References llvm::EVT::bitsGT(), DL, llvm::ISD::FP_EXTEND, llvm::ISD::FP_ROUND, getIntPtrConstant(), and getNode().

Referenced by llvm::TargetLowering::expandRoundInexactToOdd(), getCopyFromPartsVector(), getNode(), llvm::RISCVTargetLowering::LowerOperation(), LowerUINT_TO_FP_i32(), and llvm::RISCVTargetLowering::PerformDAGCombine().

◆ getFrameIndex()

SDValue SelectionDAG::getFrameIndex	(	int	FI,
		EVT	VT,
		bool	isTarget = `false`
	)

Definition at line 1904 of file SelectionDAG.cpp.

References AddNodeIDNode(), llvm::ISD::FrameIndex, getVTList(), N, and llvm::ISD::TargetFrameIndex.

◆ getFrameIndexDbgValue() [1/2]

SDDbgValue * SelectionDAG::getFrameIndexDbgValue	(	DIVariable *	Var,
		DIExpression *	Expr,
		unsigned	FI,
		ArrayRef< SDNode * >	Dependencies,
		bool	IsIndirect,
		const DebugLoc &	DL,
		unsigned	O
	)

Creates a FrameIndex SDDbgValue node.

FrameIndex with dependencies.

Definition at line 11341 of file SelectionDAG.cpp.

References assert(), DL, llvm::SDDbgOperand::fromFrameIdx(), and llvm::SDDbgInfo::getAlloc().

◆ getFrameIndexDbgValue() [2/2]

SDDbgValue * SelectionDAG::getFrameIndexDbgValue	(	DIVariable *	Var,
		DIExpression *	Expr,
		unsigned	FI,
		bool	IsIndirect,
		const DebugLoc &	DL,
		unsigned	O
	)

Creates a FrameIndex SDDbgValue node.

FrameIndex.

Definition at line 11330 of file SelectionDAG.cpp.

References assert(), DL, and getFrameIndexDbgValue().

Referenced by getFrameIndexDbgValue(), and llvm::SelectionDAGBuilder::handleDebugDeclare().

◆ getFreeze()

SDValue SelectionDAG::getFreeze ( SDValue V )

Return a freeze using the SDLoc of the value operand.

Definition at line 2441 of file SelectionDAG.cpp.

References llvm::ISD::FREEZE, and getNode().

Referenced by combinePredicateReduction(), combineSelectToBinOp(), llvm::TargetLowering::expandABD(), llvm::TargetLowering::expandABS(), llvm::TargetLowering::expandAVG(), llvm::TargetLowering::expandIntMINMAX(), llvm::TargetLowering::expandVECTOR_COMPRESS(), foldBoolSelectToLogic(), foldSelectWithIdentityConstant(), foldVSelectToSignBitSplatMask(), getNode(), LowerABD(), LowerAVXCONCAT_VECTORS(), llvm::RISCVTargetLowering::LowerOperation(), LowerShiftByScalarImmediate(), lowerVectorFTRUNC_FCEIL_FFLOOR_FROUND(), lowerVectorStrictFTRUNC_FCEIL_FFLOOR_FROUND(), llvm::RISCVTargetLowering::PerformDAGCombine(), llvm::RISCVTargetLowering::ReplaceNodeResults(), and llvm::TargetLowering::SimplifyDemandedVectorElts().

◆ getFunctionVarLocs()

const FunctionVarLocs * llvm::SelectionDAG::getFunctionVarLocs ( ) const

inline

Returns the result of the AssignmentTrackingAnalysis pass if it's available, otherwise return nullptr.

Definition at line 507 of file SelectionDAG.h.

Referenced by llvm::SelectionDAGBuilder::visitDbgInfo().

◆ getGatherVP()

SDValue SelectionDAG::getGatherVP	(	SDVTList	VTs,
		EVT	VT,
		const SDLoc &	dl,
		ArrayRef< SDValue >	Ops,
		MachineMemOperand *	MMO,
		ISD::MemIndexType	IndexType
	)

Definition at line 9837 of file SelectionDAG.cpp.

References AddNodeIDNode(), assert(), llvm::MachinePointerInfo::getAddrSpace(), llvm::SDLoc::getDebugLoc(), llvm::MachineMemOperand::getFlags(), llvm::SDLoc::getIROrder(), llvm::MachineMemOperand::getPointerInfo(), llvm::EVT::getRawBits(), llvm::details::FixedOrScalableQuantity< ElementCount, unsigned >::isKnownGE(), N, NewSDValueDbgMsg(), and llvm::ArrayRef< T >::size().

Referenced by llvm::RISCVTargetLowering::PerformDAGCombine().

◆ getGetFPEnv()

SDValue SelectionDAG::getGetFPEnv	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Ptr,
		EVT	MemVT,
		MachineMemOperand *	MMO
	)

Definition at line 10150 of file SelectionDAG.cpp.

References AddNodeIDNode(), assert(), llvm::ISD::GET_FPENV_MEM, llvm::MachinePointerInfo::getAddrSpace(), llvm::SDLoc::getDebugLoc(), llvm::MachineMemOperand::getFlags(), llvm::SDLoc::getIROrder(), llvm::MachineMemOperand::getPointerInfo(), llvm::EVT::getRawBits(), llvm::SDValue::getValueType(), getVTList(), N, NewSDValueDbgMsg(), and Ptr.

◆ getGLOBAL_OFFSET_TABLE()

SDValue llvm::SelectionDAG::getGLOBAL_OFFSET_TABLE ( EVT VT )

inline

Return a GLOBAL_OFFSET_TABLE node. This does not have a useful SDLoc.

Definition at line 1138 of file SelectionDAG.h.

References getNode(), and llvm::ISD::GLOBAL_OFFSET_TABLE.

Referenced by llvm::TargetLowering::getPICJumpTableRelocBase(), and llvm::HexagonTargetLowering::LowerGLOBALADDRESS().

◆ getGlobalAddress()

SDValue SelectionDAG::getGlobalAddress	(	const GlobalValue *	GV,
		const SDLoc &	DL,
		EVT	VT,
		int64_t	offset = `0`,
		bool	isTargetGA = `false`,
		unsigned	TargetFlags = `0`
	)

◆ getGraphAttrs()

std::string SelectionDAG::getGraphAttrs ( const SDNode * N ) const

Get graph attributes for a node.

getGraphAttrs - Get graph attributes for a node.

(eg. "color=red".) Used from getNodeAttributes.

Definition at line 203 of file SelectionDAGPrinter.cpp.

References llvm::errs(), I, and N.

Referenced by llvm::DOTGraphTraits< SelectionDAG * >::getNodeAttributes().

◆ getHasPredecessorMaxSteps()

unsigned SelectionDAG::getHasPredecessorMaxSteps ( )

static

Definition at line 123 of file SelectionDAG.cpp.

References MaxSteps.

Referenced by canFoldStoreIntoLibCallOutputPointers(), getPostIndexedLoadStoreOp(), and shouldCombineToPostInc().

◆ getHeapAllocSite()

MDNode * llvm::SelectionDAG::getHeapAllocSite ( const SDNode * Node ) const

inline

Return HeapAllocSite associated with Node, or nullptr if none exists.

Definition at line 2353 of file SelectionDAG.h.

References llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::end(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find(), and I.

Referenced by llvm::ScheduleDAGSDNodes::EmitSchedule().

◆ getIndexedLoad()

SDValue SelectionDAG::getIndexedLoad	(	SDValue	OrigLoad,
		const SDLoc &	dl,
		SDValue	Base,
		SDValue	Offset,
		ISD::MemIndexedMode	AM
	)

Definition at line 9285 of file SelectionDAG.cpp.

References assert(), llvm::sampleprof::Base, getLoad(), llvm::SDValue::getValueType(), llvm::MachineMemOperand::MODereferenceable, llvm::MachineMemOperand::MOInvariant, and llvm::Offset.

◆ getIndexedLoadVP()

SDValue SelectionDAG::getIndexedLoadVP	(	SDValue	OrigLoad,
		const SDLoc &	dl,
		SDValue	Base,
		SDValue	Offset,
		ISD::MemIndexedMode	AM
	)

Definition at line 9547 of file SelectionDAG.cpp.

References assert(), llvm::sampleprof::Base, getLoadVP(), llvm::SDValue::getValueType(), llvm::MachineMemOperand::MODereferenceable, llvm::MachineMemOperand::MOInvariant, and llvm::Offset.

◆ getIndexedMaskedLoad()

SDValue SelectionDAG::getIndexedMaskedLoad	(	SDValue	OrigLoad,
		const SDLoc &	dl,
		SDValue	Base,
		SDValue	Offset,
		ISD::MemIndexedMode	AM
	)

Definition at line 9959 of file SelectionDAG.cpp.

References assert(), llvm::sampleprof::Base, getMaskedLoad(), llvm::SDValue::getValueType(), and llvm::Offset.

◆ getIndexedMaskedStore()

SDValue SelectionDAG::getIndexedMaskedStore	(	SDValue	OrigStore,
		const SDLoc &	dl,
		SDValue	Base,
		SDValue	Offset,
		ISD::MemIndexedMode	AM
	)

Definition at line 10008 of file SelectionDAG.cpp.

References assert(), llvm::sampleprof::Base, getMaskedStore(), and llvm::Offset.

◆ getIndexedStore()

SDValue SelectionDAG::getIndexedStore	(	SDValue	OrigStore,
		const SDLoc &	dl,
		SDValue	Base,
		SDValue	Offset,
		ISD::MemIndexedMode	AM
	)

Definition at line 9417 of file SelectionDAG.cpp.

References AddNodeIDNode(), assert(), llvm::sampleprof::Base, llvm::SDLoc::getDebugLoc(), llvm::SDLoc::getIROrder(), getVTList(), N, NewSDValueDbgMsg(), llvm::Offset, and llvm::ISD::STORE.

Referenced by llvm::HexagonTargetLowering::LowerStore().

◆ getIndexedStoreVP()

SDValue SelectionDAG::getIndexedStoreVP	(	SDValue	OrigStore,
		const SDLoc &	dl,
		SDValue	Base,
		SDValue	Offset,
		ISD::MemIndexedMode	AM
	)

Definition at line 9669 of file SelectionDAG.cpp.

References AddNodeIDNode(), assert(), llvm::sampleprof::Base, llvm::SDLoc::getDebugLoc(), llvm::SDLoc::getIROrder(), getVTList(), N, NewSDValueDbgMsg(), and llvm::Offset.

◆ getIntPtrConstant()

SDValue SelectionDAG::getIntPtrConstant	(	uint64_t	Val,
		const SDLoc &	DL,
		bool	isTarget = `false`
	)

Definition at line 1785 of file SelectionDAG.cpp.

References DL, getConstant(), getDataLayout(), and llvm::TargetLoweringBase::getPointerTy().

◆ getJumpTable()

SDValue SelectionDAG::getJumpTable	(	int	JTI,
		EVT	VT,
		bool	isTarget = `false`,
		unsigned	TargetFlags = `0`
	)

Definition at line 1920 of file SelectionDAG.cpp.

References AddNodeIDNode(), assert(), getVTList(), llvm::ISD::JumpTable, N, and llvm::ISD::TargetJumpTable.

Referenced by getTargetJumpTable(), and llvm::SelectionDAGBuilder::visitJumpTable().

◆ getJumpTableDebugInfo()

SDValue SelectionDAG::getJumpTableDebugInfo	(	int	JTI,
		SDValue	Chain,
		const SDLoc &	DL
	)

Definition at line 1940 of file SelectionDAG.cpp.

References DL, getDataLayout(), getNode(), llvm::TargetLoweringBase::getPointerTy(), getTargetConstant(), getTargetLoweringInfo(), and llvm::ISD::JUMP_TABLE_DEBUG_INFO.

Referenced by llvm::TargetLowering::expandIndirectJTBranch(), llvm::RISCVTargetLowering::expandIndirectJTBranch(), and llvm::X86TargetLowering::expandIndirectJTBranch().

◆ getLabelNode()

SDValue SelectionDAG::getLabelNode	(	unsigned	Opcode,
		const SDLoc &	dl,
		SDValue	Root,
		MCSymbol *	Label
	)

Definition at line 2342 of file SelectionDAG.cpp.

References AddNodeIDNode(), llvm::SDLoc::getDebugLoc(), llvm::SDLoc::getIROrder(), getVTList(), and N.

Referenced by getEHLabel().

◆ getLibInfo()

const TargetLibraryInfo & llvm::SelectionDAG::getLibInfo ( ) const

inline

Definition at line 502 of file SelectionDAG.h.

Referenced by expandMultipleResultFPLibCall().

◆ getLifetimeNode()

SDValue SelectionDAG::getLifetimeNode	(	bool	IsStart,
		const SDLoc &	dl,
		SDValue	Chain,
		int	FrameIndex,
		int64_t	Size,
		int64_t	Offset = `-1`
	)

Creates a LifetimeSDNode that starts (IsStart==true) or ends (IsStart==false) the lifetime of the portion of FrameIndex between offsets Offset and Offset + Size.

Definition at line 9082 of file SelectionDAG.cpp.

References AddNodeIDNode(), getDataLayout(), llvm::SDLoc::getDebugLoc(), getFrameIndex(), llvm::SDLoc::getIROrder(), getTargetLoweringInfo(), getVTList(), llvm::ISD::LIFETIME_END, llvm::ISD::LIFETIME_START, N, NewSDValueDbgMsg(), llvm::Offset, and Size.

◆ getLoad() [1/5]

SDValue SelectionDAG::getLoad	(	EVT	VT,
		const SDLoc &	dl,
		SDValue	Chain,
		SDValue	Ptr,
		MachineMemOperand *	MMO
	)

Definition at line 9259 of file SelectionDAG.cpp.

References getLoad(), getUNDEF(), llvm::ISD::NON_EXTLOAD, Ptr, and llvm::ISD::UNINDEXED.

◆ getLoad() [2/5]

SDValue SelectionDAG::getLoad	(	EVT	VT,
		const SDLoc &	dl,
		SDValue	Chain,
		SDValue	Ptr,
		MachinePointerInfo	PtrInfo,
		MaybeAlign	Alignment = `MaybeAlign()`,
		MachineMemOperand::Flags	MMOFlags = `MachineMemOperand::MONone`,
		const AAMDNodes &	AAInfo = `AAMDNodes()`,
		const MDNode *	Ranges = `nullptr`
	)

Loads are not normal binary operators: their result type is not determined by their operands, and they produce a value AND a token chain.

This function will set the MOLoad flag on MMOFlags, but you can set it if you want. The MOStore flag must not be set.

Definition at line 9249 of file SelectionDAG.cpp.

References getLoad(), getUNDEF(), llvm::ISD::NON_EXTLOAD, Ptr, and llvm::ISD::UNINDEXED.

◆ getLoad() [3/5]

SDValue SelectionDAG::getLoad	(	ISD::MemIndexedMode	AM,
		ISD::LoadExtType	ExtType,
		EVT	VT,
		const SDLoc &	dl,
		SDValue	Chain,
		SDValue	Ptr,
		SDValue	Offset,
		EVT	MemVT,
		MachineMemOperand *	MMO
	)

◆ getLoad() [4/5]

SDValue SelectionDAG::getLoad	(	ISD::MemIndexedMode	AM,
		ISD::LoadExtType	ExtType,
		EVT	VT,
		const SDLoc &	dl,
		SDValue	Chain,
		SDValue	Ptr,
		SDValue	Offset,
		MachinePointerInfo	PtrInfo,
		EVT	MemVT,
		Align	Alignment,
		MachineMemOperand::Flags	MMOFlags = `MachineMemOperand::MONone`,
		const AAMDNodes &	AAInfo = `AAMDNodes()`,
		const MDNode *	Ranges = `nullptr`
	)

Definition at line 9175 of file SelectionDAG.cpp.

References assert(), getLoad(), getMachineFunction(), llvm::MachineFunction::getMachineMemOperand(), llvm::EVT::getStoreSize(), llvm::SDValue::getValueType(), InferPointerInfo(), llvm::PointerUnion< PTs >::isNull(), llvm::MachineMemOperand::MOLoad, llvm::MachineMemOperand::MOStore, llvm::Offset, llvm::LocationSize::precise(), Ptr, Size, and llvm::MachinePointerInfo::V.

◆ getLoad() [5/5]

SDValue llvm::SelectionDAG::getLoad	(	ISD::MemIndexedMode	AM,
		ISD::LoadExtType	ExtType,
		EVT	VT,
		const SDLoc &	dl,
		SDValue	Chain,
		SDValue	Ptr,
		SDValue	Offset,
		MachinePointerInfo	PtrInfo,
		EVT	MemVT,
		MaybeAlign	Alignment = `MaybeAlign()`,
		MachineMemOperand::Flags	MMOFlags = `MachineMemOperand::MONone`,
		const AAMDNodes &	AAInfo = `AAMDNodes()`,
		const MDNode *	Ranges = `nullptr`
	)

inline

Definition at line 1404 of file SelectionDAG.h.

References getEVTAlign(), getLoad(), llvm::Offset, and Ptr.

◆ getLoadVP() [1/5]

SDValue SelectionDAG::getLoadVP	(	EVT	VT,
		const SDLoc &	dl,
		SDValue	Chain,
		SDValue	Ptr,
		SDValue	Mask,
		SDValue	EVL,
		MachineMemOperand *	MMO,
		bool	IsExpanding = `false`
	)

Definition at line 9517 of file SelectionDAG.cpp.

References getLoadVP(), getUNDEF(), llvm::ISD::NON_EXTLOAD, Ptr, and llvm::ISD::UNINDEXED.

◆ getLoadVP() [2/5]

SDValue SelectionDAG::getLoadVP	(	EVT	VT,
		const SDLoc &	dl,
		SDValue	Chain,
		SDValue	Ptr,
		SDValue	Mask,
		SDValue	EVL,
		MachinePointerInfo	PtrInfo,
		MaybeAlign	Alignment,
		MachineMemOperand::Flags	MMOFlags,
		const AAMDNodes &	AAInfo,
		const MDNode *	Ranges = `nullptr`,
		bool	IsExpanding = `false`
	)

Definition at line 9504 of file SelectionDAG.cpp.

References getLoadVP(), getUNDEF(), llvm::ISD::NON_EXTLOAD, Ptr, and llvm::ISD::UNINDEXED.

◆ getLoadVP() [3/5]

SDValue SelectionDAG::getLoadVP	(	ISD::MemIndexedMode	AM,
		ISD::LoadExtType	ExtType,
		EVT	VT,
		const SDLoc &	dl,
		SDValue	Chain,
		SDValue	Ptr,
		SDValue	Offset,
		SDValue	Mask,
		SDValue	EVL,
		EVT	MemVT,
		MachineMemOperand *	MMO,
		bool	IsExpanding = `false`
	)

Definition at line 9469 of file SelectionDAG.cpp.

References AddNodeIDNode(), assert(), llvm::MachinePointerInfo::getAddrSpace(), llvm::SDLoc::getDebugLoc(), llvm::MachineMemOperand::getFlags(), llvm::SDLoc::getIROrder(), llvm::MachineMemOperand::getPointerInfo(), llvm::EVT::getRawBits(), getVTList(), Indexed, N, NewSDValueDbgMsg(), llvm::Offset, Ptr, and llvm::ISD::UNINDEXED.

◆ getLoadVP() [4/5]

SDValue SelectionDAG::getLoadVP	(	ISD::MemIndexedMode	AM,
		ISD::LoadExtType	ExtType,
		EVT	VT,
		const SDLoc &	dl,
		SDValue	Chain,
		SDValue	Ptr,
		SDValue	Offset,
		SDValue	Mask,
		SDValue	EVL,
		MachinePointerInfo	PtrInfo,
		EVT	MemVT,
		Align	Alignment,
		MachineMemOperand::Flags	MMOFlags,
		const AAMDNodes &	AAInfo,
		const MDNode *	Ranges = `nullptr`,
		bool	IsExpanding = `false`
	)

Definition at line 9446 of file SelectionDAG.cpp.

References assert(), getLoadVP(), getMachineFunction(), llvm::MachineFunction::getMachineMemOperand(), llvm::EVT::getStoreSize(), llvm::SDValue::getValueType(), InferPointerInfo(), llvm::PointerUnion< PTs >::isNull(), llvm::MachineMemOperand::MOLoad, llvm::MachineMemOperand::MOStore, llvm::Offset, llvm::LocationSize::precise(), Ptr, Size, and llvm::MachinePointerInfo::V.

Referenced by getExtLoadVP(), getIndexedLoadVP(), and getLoadVP().

◆ getLoadVP() [5/5]

SDValue llvm::SelectionDAG::getLoadVP	(	ISD::MemIndexedMode	AM,
		ISD::LoadExtType	ExtType,
		EVT	VT,
		const SDLoc &	dl,
		SDValue	Chain,
		SDValue	Ptr,
		SDValue	Offset,
		SDValue	Mask,
		SDValue	EVL,
		MachinePointerInfo	PtrInfo,
		EVT	MemVT,
		MaybeAlign	Alignment = `MaybeAlign()`,
		MachineMemOperand::Flags	MMOFlags = `MachineMemOperand::MONone`,
		const AAMDNodes &	AAInfo = `AAMDNodes()`,
		const MDNode *	Ranges = `nullptr`,
		bool	IsExpanding = `false`
	)

inline

Definition at line 1467 of file SelectionDAG.h.

References getEVTAlign(), getLoadVP(), llvm::Offset, and Ptr.

◆ getLogicalNOT()

SDValue SelectionDAG::getLogicalNOT	(	const SDLoc &	DL,
		SDValue	Val,
		EVT	VT
	)

Create a logical NOT operation as (XOR Val, BooleanOne).

Definition at line 1605 of file SelectionDAG.cpp.

References DL, getBoolConstant(), getNode(), and llvm::ISD::XOR.

Referenced by extractBooleanFlip(), llvm::RISCVTargetLowering::LowerOperation(), llvm::HexagonTargetLowering::LowerUAddSubOCarry(), and PerformORCombine_i1().

◆ getMachineFunction()

MachineFunction & llvm::SelectionDAG::getMachineFunction ( ) const

inline

Definition at line 490 of file SelectionDAG.h.

◆ getMachineNode() [1/13]

MachineSDNode * SelectionDAG::getMachineNode	(	unsigned	Opcode,
		const SDLoc &	dl,
		ArrayRef< EVT >	ResultTys,
		ArrayRef< SDValue >	Ops
	)

Definition at line 11209 of file SelectionDAG.cpp.

References getMachineNode(), and getVTList().

◆ getMachineNode() [2/13]

MachineSDNode * SelectionDAG::getMachineNode	(	unsigned	Opcode,
		const SDLoc &	dl,
		EVT	VT
	)

These are used for target selectors to create a new node with specified return type(s), MachineInstr opcode, and operands.

getMachineNode - These are used for target selectors to create a new node with specified return type(s), MachineInstr opcode, and operands.

Note that getMachineNode returns the resultant node. If there is already a node of the specified opcode and operands, it returns that node instead of the current one.

Definition at line 11128 of file SelectionDAG.cpp.

References getMachineNode(), and getVTList().

◆ getMachineNode() [3/13]

MachineSDNode * SelectionDAG::getMachineNode	(	unsigned	Opcode,
		const SDLoc &	dl,
		EVT	VT,
		ArrayRef< SDValue >	Ops
	)

Definition at line 11156 of file SelectionDAG.cpp.

References getMachineNode(), and getVTList().

◆ getMachineNode() [4/13]

MachineSDNode * SelectionDAG::getMachineNode	(	unsigned	Opcode,
		const SDLoc &	dl,
		EVT	VT,
		SDValue	Op1
	)

Definition at line 11134 of file SelectionDAG.cpp.

References getMachineNode(), and getVTList().

◆ getMachineNode() [5/13]

MachineSDNode * SelectionDAG::getMachineNode	(	unsigned	Opcode,
		const SDLoc &	dl,
		EVT	VT,
		SDValue	Op1,
		SDValue	Op2
	)

Definition at line 11141 of file SelectionDAG.cpp.

References getMachineNode(), and getVTList().

◆ getMachineNode() [6/13]

MachineSDNode * SelectionDAG::getMachineNode	(	unsigned	Opcode,
		const SDLoc &	dl,
		EVT	VT,
		SDValue	Op1,
		SDValue	Op2,
		SDValue	Op3
	)

Definition at line 11148 of file SelectionDAG.cpp.

References getMachineNode(), and getVTList().

◆ getMachineNode() [7/13]

MachineSDNode * SelectionDAG::getMachineNode	(	unsigned	Opcode,
		const SDLoc &	dl,
		EVT	VT1,
		EVT	VT2,
		ArrayRef< SDValue >	Ops
	)

Definition at line 11178 of file SelectionDAG.cpp.

References getMachineNode(), and getVTList().

◆ getMachineNode() [8/13]

MachineSDNode * SelectionDAG::getMachineNode	(	unsigned	Opcode,
		const SDLoc &	dl,
		EVT	VT1,
		EVT	VT2,
		EVT	VT3,
		ArrayRef< SDValue >	Ops
	)

Definition at line 11202 of file SelectionDAG.cpp.

References getMachineNode(), and getVTList().

◆ getMachineNode() [9/13]

MachineSDNode * SelectionDAG::getMachineNode	(	unsigned	Opcode,
		const SDLoc &	dl,
		EVT	VT1,
		EVT	VT2,
		EVT	VT3,
		SDValue	Op1,
		SDValue	Op2
	)

Definition at line 11185 of file SelectionDAG.cpp.

References getMachineNode(), and getVTList().

◆ getMachineNode() [10/13]

MachineSDNode * SelectionDAG::getMachineNode	(	unsigned	Opcode,
		const SDLoc &	dl,
		EVT	VT1,
		EVT	VT2,
		EVT	VT3,
		SDValue	Op1,
		SDValue	Op2,
		SDValue	Op3
	)

Definition at line 11193 of file SelectionDAG.cpp.

References getMachineNode(), and getVTList().

◆ getMachineNode() [11/13]

MachineSDNode * SelectionDAG::getMachineNode	(	unsigned	Opcode,
		const SDLoc &	dl,
		EVT	VT1,
		EVT	VT2,
		SDValue	Op1,
		SDValue	Op2
	)

Definition at line 11162 of file SelectionDAG.cpp.

References getMachineNode(), and getVTList().

◆ getMachineNode() [12/13]

MachineSDNode * SelectionDAG::getMachineNode	(	unsigned	Opcode,
		const SDLoc &	dl,
		EVT	VT1,
		EVT	VT2,
		SDValue	Op1,
		SDValue	Op2,
		SDValue	Op3
	)

Definition at line 11170 of file SelectionDAG.cpp.

References getMachineNode(), and getVTList().

◆ getMachineNode() [13/13]

MachineSDNode * SelectionDAG::getMachineNode	(	unsigned	Opcode,
		const SDLoc &	dl,
		SDVTList	VTs,
		ArrayRef< SDValue >	Ops
	)

Definition at line 11216 of file SelectionDAG.cpp.

References AddNodeIDNode(), DL, N, NewSDValueDbgMsg(), llvm::SDVTList::NumVTs, and llvm::SDVTList::VTs.

◆ getMaskedGather()

SDValue SelectionDAG::getMaskedGather	(	SDVTList	VTs,
		EVT	MemVT,
		const SDLoc &	dl,
		ArrayRef< SDValue >	Ops,
		MachineMemOperand *	MMO,
		ISD::MemIndexType	IndexType,
		ISD::LoadExtType	ExtTy
	)

Definition at line 10019 of file SelectionDAG.cpp.

References AddNodeIDNode(), assert(), llvm::MachinePointerInfo::getAddrSpace(), llvm::SDLoc::getDebugLoc(), llvm::MachineMemOperand::getFlags(), llvm::SDLoc::getIROrder(), llvm::MachineMemOperand::getPointerInfo(), llvm::EVT::getRawBits(), llvm::details::FixedOrScalableQuantity< ElementCount, unsigned >::isKnownGE(), llvm::ISD::MGATHER, N, NewSDValueDbgMsg(), and llvm::ArrayRef< T >::size().

Referenced by llvm::RISCVTargetLowering::PerformDAGCombine(), performMaskedGatherScatterCombine(), and rebuildGatherScatter().

◆ getMaskedHistogram()

SDValue SelectionDAG::getMaskedHistogram	(	SDVTList	VTs,
		EVT	MemVT,
		const SDLoc &	dl,
		ArrayRef< SDValue >	Ops,
		MachineMemOperand *	MMO,
		ISD::MemIndexType	IndexType
	)

Definition at line 10112 of file SelectionDAG.cpp.

References AddNodeIDNode(), assert(), llvm::ISD::EXPERIMENTAL_VECTOR_HISTOGRAM, llvm::MachinePointerInfo::getAddrSpace(), llvm::SDLoc::getDebugLoc(), llvm::MachineMemOperand::getFlags(), llvm::SDLoc::getIROrder(), llvm::MachineMemOperand::getPointerInfo(), llvm::EVT::getRawBits(), N, NewSDValueDbgMsg(), and llvm::ArrayRef< T >::size().

Referenced by performMaskedGatherScatterCombine().

◆ getMaskedLoad()

SDValue SelectionDAG::getMaskedLoad	(	EVT	VT,
		const SDLoc &	dl,
		SDValue	Chain,
		SDValue	Base,
		SDValue	Offset,
		SDValue	Mask,
		SDValue	Src0,
		EVT	MemVT,
		MachineMemOperand *	MMO,
		ISD::MemIndexedMode	AM,
		ISD::LoadExtType	ExtTy,
		bool	IsExpanding = `false`
	)

◆ getMaskedScatter()

SDValue SelectionDAG::getMaskedScatter	(	SDVTList	VTs,
		EVT	MemVT,
		const SDLoc &	dl,
		ArrayRef< SDValue >	Ops,
		MachineMemOperand *	MMO,
		ISD::MemIndexType	IndexType,
		bool	IsTruncating = `false`
	)

Definition at line 10066 of file SelectionDAG.cpp.

References AddNodeIDNode(), assert(), llvm::MachinePointerInfo::getAddrSpace(), llvm::SDLoc::getDebugLoc(), llvm::MachineMemOperand::getFlags(), llvm::SDLoc::getIROrder(), llvm::MachineMemOperand::getPointerInfo(), llvm::EVT::getRawBits(), llvm::details::FixedOrScalableQuantity< ElementCount, unsigned >::isKnownGE(), llvm::ISD::MSCATTER, N, NewSDValueDbgMsg(), and llvm::ArrayRef< T >::size().

Referenced by llvm::RISCVTargetLowering::PerformDAGCombine(), performMaskedGatherScatterCombine(), and rebuildGatherScatter().

◆ getMaskedStore()

SDValue SelectionDAG::getMaskedStore	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Val,
		SDValue	Base,
		SDValue	Offset,
		SDValue	Mask,
		EVT	MemVT,
		MachineMemOperand *	MMO,
		ISD::MemIndexedMode	AM,
		bool	IsTruncating = `false`,
		bool	IsCompressing = `false`
	)

◆ getMCSymbol()

SDValue SelectionDAG::getMCSymbol	(	MCSymbol *	Sym,
		EVT	VT
	)

Definition at line 2039 of file SelectionDAG.cpp.

References getVTList(), N, and Sym.

Referenced by recoverFramePointer(), and transformCallee().

◆ getMDNode()

SDValue SelectionDAG::getMDNode ( const MDNode * MD )

Return an MDNodeSDNode which holds an MDNode.

Definition at line 2397 of file SelectionDAG.cpp.

References AddNodeIDNode(), getVTList(), llvm::ISD::MDNODE_SDNODE, and N.

Referenced by llvm::PPCTargetLowering::CollectTargetIntrinsicOperands(), and llvm::SelectionDAGBuilder::getValueImpl().

◆ getMemBasePlusOffset() [1/2]

SDValue SelectionDAG::getMemBasePlusOffset	(	SDValue	Base,
		SDValue	Offset,
		const SDLoc &	DL,
		const SDNodeFlags	Flags = `SDNodeFlags()`
	)

Definition at line 8047 of file SelectionDAG.cpp.

References llvm::ISD::ADD, assert(), DL, getNode(), llvm::Offset, and Ptr.

◆ getMemBasePlusOffset() [2/2]

SDValue SelectionDAG::getMemBasePlusOffset	(	SDValue	Base,
		TypeSize	Offset,
		const SDLoc &	DL,
		const SDNodeFlags	Flags = `SDNodeFlags()`
	)

Returns sum of the base pointer and offset.

Unlike getObjectPtrOffset this does not set NoUnsignedWrap by default.

Definition at line 8031 of file SelectionDAG.cpp.

References llvm::sampleprof::Base, DL, getConstant(), getMemBasePlusOffset(), getVScale(), and llvm::Offset.

Referenced by combineI8TruncStore(), combineLoad(), combineStore(), combineTargetShuffle(), combineV3I8LoadExt(), llvm::TargetLowering::CTTZTableLookup(), EmitUnrolledSetTag(), getBROADCAST_LOAD(), getMemBasePlusOffset(), getMemcpyLoadsAndStores(), getMemmoveLoadsAndStores(), getMemsetStores(), getObjectPtrOffset(), getParamsForOneTrueMaskedElt(), llvm::TargetLowering::getVectorSubVecPointer(), llvm::RISCVTargetLowering::LowerFormalArguments(), lowerShuffleAsBroadcast(), llvm::HexagonTargetLowering::LowerUnalignedLoad(), lowerVECTOR_SHUFFLE(), narrowExtractedVectorLoad(), performLOADCombine(), llvm::RISCVDAGToDAGISel::PreprocessISelDAG(), scalarizeVectorStore(), ShrinkLoadReplaceStoreWithStore(), and splitVectorStore().

◆ getMemcpy()

SDValue SelectionDAG::getMemcpy	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Dst,
		SDValue	Src,
		SDValue	Size,
		Align	Alignment,
		bool	isVol,
		bool	AlwaysInline,
		const CallInst *	CI,
		std::optional< bool >	OverrideTailCall,
		MachinePointerInfo	DstPtrInfo,
		MachinePointerInfo	SrcPtrInfo,
		const AAMDNodes &	AAInfo = `AAMDNodes()`,
		AAResults *	AA = `nullptr`
	)

Definition at line 8562 of file SelectionDAG.cpp.

References assert(), checkAddrSpaceIsValidForLibcall(), llvm::SelectionDAGTargetInfo::EmitTargetCodeForMemcpy(), llvm::funcReturnsFirstArgOfCall(), llvm::MachinePointerInfo::getAddrSpace(), getContext(), getDataLayout(), getExternalSymbol(), llvm::DataLayout::getIntPtrType(), llvm::TargetLoweringBase::getLibcallCallingConv(), llvm::TargetLoweringBase::getLibcallName(), getMemcpyLoadsAndStores(), llvm::TargetLoweringBase::getPointerTy(), getTarget(), llvm::PointerType::getUnqual(), llvm::ConstantSDNode::getZExtValue(), llvm::isInTailCallPosition(), llvm::CallInst::isTailCall(), llvm::ConstantSDNode::isZero(), llvm::TargetLowering::LowerCallTo(), llvm::TargetLowering::CallLoweringInfo::setChain(), llvm::TargetLowering::CallLoweringInfo::setDebugLoc(), llvm::TargetLowering::CallLoweringInfo::setDiscardResult(), llvm::TargetLowering::CallLoweringInfo::setLibCallee(), llvm::TargetLowering::CallLoweringInfo::setTailCall(), and Size.

Referenced by CreateCopyOfByValArgument(), emitConstantSizeRepmov(), llvm::SITargetLowering::LowerCall(), llvm::XtensaTargetLowering::LowerCall(), llvm::LoongArchTargetLowering::LowerCall(), llvm::RISCVTargetLowering::LowerCall(), llvm::SparcTargetLowering::LowerCall_32(), LowerVACOPY(), and llvm::HexagonTargetLowering::LowerVACOPY().

◆ getMemIntrinsicNode() [1/3]

SDValue SelectionDAG::getMemIntrinsicNode	(	unsigned	Opcode,
		const SDLoc &	dl,
		SDVTList	VTList,
		ArrayRef< SDValue >	Ops,
		EVT	MemVT,
		MachineMemOperand *	MMO
	)

Definition at line 9039 of file SelectionDAG.cpp.

References AddNodeIDNode(), assert(), llvm::ISD::FIRST_TARGET_MEMORY_OPCODE, llvm::MachinePointerInfo::getAddrSpace(), llvm::SDLoc::getDebugLoc(), llvm::MachineMemOperand::getFlags(), llvm::SDLoc::getIROrder(), llvm::MachineMemOperand::getPointerInfo(), llvm::EVT::getRawBits(), llvm::ISD::INTRINSIC_VOID, llvm::ISD::INTRINSIC_W_CHAIN, N, NewSDValueDbgMsg(), llvm::SDVTList::NumVTs, llvm::ISD::PREFETCH, and llvm::SDVTList::VTs.

◆ getMemIntrinsicNode() [2/3]

SDValue SelectionDAG::getMemIntrinsicNode	(	unsigned	Opcode,
		const SDLoc &	dl,
		SDVTList	VTList,
		ArrayRef< SDValue >	Ops,
		EVT	MemVT,
		MachinePointerInfo	PtrInfo,
		Align	Alignment,
		MachineMemOperand::Flags	Flags = `MachineMemOperand::MOLoad \| MachineMemOperand::MOStore`,
		LocationSize	Size = `0`,
		const AAMDNodes &	AAInfo = `AAMDNodes()`
	)

Creates a MemIntrinsicNode that may produce a result and takes a list of operands.

Opcode may be INTRINSIC_VOID, INTRINSIC_W_CHAIN, or a target-specific opcode with a value not less than FIRST_TARGET_MEMORY_OPCODE.

Definition at line 9024 of file SelectionDAG.cpp.

References getMachineFunction(), llvm::MachineFunction::getMachineMemOperand(), getMemIntrinsicNode(), llvm::EVT::getStoreSize(), llvm::LocationSize::precise(), and Size.

Referenced by llvm::X86TargetLowering::BuildFILD(), combineBitcast(), combineBVZEXTLOAD(), combineINSERT_SUBVECTOR(), combineStore(), combineTargetShuffle(), CombineVLDDUP(), combineX86CloadCstore(), createLoadLR(), createSetFPEnvNodes(), createStoreLR(), EltsFromConsecutiveLoads(), EmitMaskedTruncSStore(), EmitTruncSStore(), EmitUnrolledSetTag(), llvm::PPCTargetLowering::expandVSXLoadForLE(), llvm::PPCTargetLowering::expandVSXStoreForLE(), getAVX2GatherNode(), getBROADCAST_LOAD(), getGatherNode(), getMemIntrinsicNode(), getScatterNode(), LowerATOMIC_STORE(), lowerAtomicArithWithLOCK(), lowerBuildVectorAsBroadcast(), llvm::NVPTXTargetLowering::LowerCall(), LowerCMP_SWAP(), LowerINTRINSIC_W_CHAIN(), LowerMGATHER(), LowerMSCATTER(), llvm::SystemZTargetLowering::LowerOperationWrapper(), llvm::NVPTXTargetLowering::LowerReturn(), lowerShuffleAsBroadcast(), LowerStore(), LowerSTORE(), lowerUINT_TO_FP_vXi32(), LowerUnalignedLoadRetParam(), LowerUnalignedStoreParam(), LowerUnalignedStoreRet(), lowerVECTOR_SHUFFLE(), llvm::AMDGPUDAGToDAGISel::matchLoadD16FromBuildVector(), narrowLoadToVZLoad(), llvm::PPCTargetLowering::PerformDAGCombine(), PerformMVEVLDCombine(), performNEONPostLDSTCombine(), performPostLD1Combine(), PerformVDUPCombine(), llvm::RISCVDAGToDAGISel::PreprocessISelDAG(), ReplaceINTRINSIC_W_CHAIN(), ReplaceLoadVector(), llvm::SITargetLowering::ReplaceNodeResults(), llvm::X86TargetLowering::ReplaceNodeResults(), llvm::X86TargetLowering::SimplifyDemandedVectorEltsForTargetNode(), TryCombineBaseUpdate(), tryMemPairCombine(), llvm::X86TargetLowering::visitMaskedLoad(), and llvm::X86TargetLowering::visitMaskedStore().

◆ getMemIntrinsicNode() [3/3]

SDValue llvm::SelectionDAG::getMemIntrinsicNode	(	unsigned	Opcode,
		const SDLoc &	dl,
		SDVTList	VTList,
		ArrayRef< SDValue >	Ops,
		EVT	MemVT,
		MachinePointerInfo	PtrInfo,
		MaybeAlign	Alignment = `std::nullopt`,
		MachineMemOperand::Flags	Flags = `MachineMemOperand::MOLoad \| MachineMemOperand::MOStore`,
		LocationSize	Size = `0`,
		const AAMDNodes &	AAInfo = `AAMDNodes()`
	)

inline

Definition at line 1342 of file SelectionDAG.h.

References getEVTAlign(), getMemIntrinsicNode(), and Size.

◆ getMemmove()

SDValue SelectionDAG::getMemmove	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Dst,
		SDValue	Src,
		SDValue	Size,
		Align	Alignment,
		bool	isVol,
		const CallInst *	CI,
		std::optional< bool >	OverrideTailCall,
		MachinePointerInfo	DstPtrInfo,
		MachinePointerInfo	SrcPtrInfo,
		const AAMDNodes &	AAInfo = `AAMDNodes()`,
		AAResults *	AA = `nullptr`
	)

Definition at line 8687 of file SelectionDAG.cpp.

◆ getMemset()

SDValue SelectionDAG::getMemset	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Dst,
		SDValue	Src,
		SDValue	Size,
		Align	Alignment,
		bool	isVol,
		bool	AlwaysInline,
		const CallInst *	CI,
		MachinePointerInfo	DstPtrInfo,
		const AAMDNodes &	AAInfo = `AAMDNodes()`
	)

Definition at line 8803 of file SelectionDAG.cpp.

Referenced by emitConstantSizeRepstos().

◆ getMergeValues()

SDValue SelectionDAG::getMergeValues	(	ArrayRef< SDValue >	Ops,
		const SDLoc &	dl
	)

Create a MERGE_VALUES node from the given operands.

getMergeValues - Create a MERGE_VALUES node from the given operands.

Definition at line 9013 of file SelectionDAG.cpp.

References getNode(), getVTList(), llvm::ISD::MERGE_VALUES, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::SmallVectorImpl< T >::reserve(), and llvm::ArrayRef< T >::size().

◆ getMFAM()

MachineFunctionAnalysisManager * llvm::SelectionDAG::getMFAM ( )

inline

Definition at line 492 of file SelectionDAG.h.

◆ getMMI()

MachineModuleInfo * llvm::SelectionDAG::getMMI ( ) const

inline

Definition at line 512 of file SelectionDAG.h.

◆ getMMRAMetadata()

MDNode * llvm::SelectionDAG::getMMRAMetadata ( const SDNode * Node ) const

inline

Return the MMRA MDNode associated with Node, or nullptr if none exists.

Definition at line 2372 of file SelectionDAG.h.

References llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::end(), and llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find().

Referenced by llvm::ScheduleDAGSDNodes::EmitSchedule().

◆ getNegative()

SDValue SelectionDAG::getNegative	(	SDValue	Val,
		const SDLoc &	DL,
		EVT	VT
	)

Create negative operation as (SUB 0, Val).

Definition at line 1596 of file SelectionDAG.cpp.

References DL, getConstant(), getNode(), and llvm::ISD::SUB.

Referenced by combineAddOrSubToADCOrSBB(), combineAnd(), combineMul(), combinePredicateReduction(), combineSelectToBinOp(), combineSetCC(), combineX86AddSub(), LowerABS(), lowerAtomicArith(), LowerSELECTWithCmpZero(), LowerShift(), performCONCAT_VECTORSCombine(), and llvm::RISCVTargetLowering::PerformDAGCombine().

◆ getNeutralElement()

SDValue SelectionDAG::getNeutralElement	(	unsigned	Opcode,
		const SDLoc &	DL,
		EVT	VT,
		SDNodeFlags	Flags
	)

Get the (commutative) neutral element for the given opcode, if it exists.

Definition at line 13524 of file SelectionDAG.cpp.

References llvm::ISD::ADD, llvm::ISD::AND, llvm::APFloat::changeSign(), DL, llvm::ISD::FADD, llvm::ISD::FMAXIMUM, llvm::ISD::FMAXNUM, llvm::ISD::FMINIMUM, llvm::ISD::FMINNUM, llvm::ISD::FMUL, getAllOnesConstant(), getConstant(), getConstantFP(), llvm::EVT::getFltSemantics(), llvm::APFloat::getInf(), llvm::APFloat::getLargest(), llvm::APFloat::getQNaN(), llvm::APInt::getSignedMaxValue(), llvm::APInt::getSignedMinValue(), llvm::EVT::getSizeInBits(), llvm::ISD::MUL, llvm::ISD::OR, llvm::ISD::SMAX, llvm::ISD::SMIN, llvm::ISD::UMAX, llvm::ISD::UMIN, and llvm::ISD::XOR.

Referenced by tryFoldSelectIntoOp().

◆ getNode() [1/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		ArrayRef< EVT >	ResultTys,
		ArrayRef< SDValue >	Ops
	)

Definition at line 10444 of file SelectionDAG.cpp.

References DL, getNode(), and getVTList().

◆ getNode() [2/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		EVT	VT
	)

Gets or creates the specified node.

Definition at line 6160 of file SelectionDAG.cpp.

References AddNodeIDNode(), DL, getVTList(), N, and NewSDValueDbgMsg().

◆ getNode() [3/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		EVT	VT,
		ArrayRef< SDUse >	Ops
	)

Gets or creates the specified node.

Definition at line 10306 of file SelectionDAG.cpp.

References DL, getNode(), and llvm::ArrayRef< T >::size().

◆ getNode() [4/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		EVT	VT,
		ArrayRef< SDValue >	Ops
	)

Definition at line 10322 of file SelectionDAG.cpp.

References DL, llvm::SelectionDAG::FlagInserter::getFlags(), and getNode().

◆ getNode() [5/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		EVT	VT,
		ArrayRef< SDValue >	Ops,
		const SDNodeFlags	Flags
	)

◆ getNode() [6/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		EVT	VT,
		SDValue	N1,
		SDValue	N2
	)

Definition at line 7188 of file SelectionDAG.cpp.

References DL, llvm::SelectionDAG::FlagInserter::getFlags(), and getNode().

◆ getNode() [7/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		EVT	VT,
		SDValue	N1,
		SDValue	N2,
		const SDNodeFlags	Flags
	)

Definition at line 7217 of file SelectionDAG.cpp.

References llvm::ISD::ABDS, llvm::ISD::ABDU, llvm::ISD::ADD, AddNodeIDNode(), llvm::ISD::AND, assert(), llvm::ISD::AssertSext, llvm::ISD::AssertZext, llvm::ISD::AVGCEILS, llvm::ISD::AVGCEILU, llvm::ISD::AVGFLOORS, llvm::ISD::AVGFLOORU, llvm::EVT::bitsLE(), llvm::ISD::BUILD_PAIR, llvm::ISD::BUILD_VECTOR, canonicalizeCommutativeBinop(), llvm::ISD::CONCAT_VECTORS, llvm::ISD::DELETED_NODE, DL, llvm::ISD::EntryToken, llvm::ISD::EXTRACT_ELEMENT, llvm::ISD::EXTRACT_SUBVECTOR, llvm::ISD::EXTRACT_VECTOR_ELT, llvm::APInt::extractBits(), llvm::ISD::FADD, llvm::ISD::FCOPYSIGN, llvm::ISD::FDIV, llvm::ISD::FMUL, FoldBUILD_VECTOR(), foldCONCAT_VECTORS(), FoldConstantArithmetic(), llvm::ISD::FP_ROUND, llvm::ISD::FP_TO_SINT_SAT, llvm::ISD::FP_TO_UINT_SAT, llvm::ISD::FREM, llvm::ISD::FSUB, getAllOnesConstant(), getAnyExtOrTrunc(), getConstant(), llvm::SDNode::getConstantOperandAPInt(), getDataLayout(), getFPExtendOrRound(), getNode(), getNOT(), llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), llvm::EVT::getScalarSizeInBits(), llvm::EVT::getScalarType(), getSExtOrTrunc(), llvm::EVT::getSizeInBits(), getUNDEF(), llvm::SDValue::getValueType(), llvm::EVT::getVectorElementCount(), llvm::EVT::getVectorElementType(), getVectorIdxConstant(), llvm::TargetLoweringBase::getVectorIdxTy(), llvm::EVT::getVectorMinNumElements(), llvm::EVT::getVectorNumElements(), getVScale(), getVTList(), llvm::ConstantSDNode::getZExtValue(), llvm::ISD::INSERT_SUBVECTOR, llvm::ISD::INSERT_VECTOR_ELT, llvm::ConstantSDNode::isAllOnes(), llvm::TargetLoweringBase::isCommutativeBinOp(), llvm::isConstOrConstSplat(), llvm::EVT::isFixedLengthVector(), llvm::EVT::isFloatingPoint(), llvm::EVT::isInteger(), llvm::EVT::isScalableVector(), llvm::SDValue::isUndef(), llvm::EVT::isVector(), llvm::ConstantSDNode::isZero(), llvm::Log2_32_Ceil(), llvm::ISD::MUL, llvm::ISD::MULHS, llvm::ISD::MULHU, N, NewSDValueDbgMsg(), llvm::ISD::OR, llvm::ISD::ROTL, llvm::ISD::ROTR, llvm::ISD::SADDSAT, llvm::ISD::SCMP, llvm::ISD::SDIV, llvm::ISD::SHL, llvm::ISD::SIGN_EXTEND_INREG, simplifyFPBinop(), simplifyShift(), llvm::ISD::SMAX, llvm::ISD::SMIN, llvm::ISD::SPLAT_VECTOR, llvm::ISD::SRA, llvm::ISD::SREM, llvm::ISD::SRL, llvm::ISD::SSUBSAT, llvm::ISD::SUB, std::swap(), llvm::ISD::TargetConstant, llvm::ISD::TokenFactor, llvm::ISD::UADDSAT, llvm::ISD::UCMP, llvm::ISD::UDIV, llvm::ISD::UMAX, llvm::ISD::UMIN, llvm::ISD::UREM, llvm::ISD::USUBSAT, llvm::ISD::VSCALE, and llvm::ISD::XOR.

◆ getNode() [8/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		EVT	VT,
		SDValue	N1,
		SDValue	N2,
		SDValue	N3
	)

Definition at line 7696 of file SelectionDAG.cpp.

References DL, llvm::SelectionDAG::FlagInserter::getFlags(), and getNode().

◆ getNode() [9/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		EVT	VT,
		SDValue	N1,
		SDValue	N2,
		SDValue	N3,
		const SDNodeFlags	Flags
	)

Definition at line 7704 of file SelectionDAG.cpp.

References llvm::APFloat::add(), AddNodeIDNode(), assert(), llvm::ISD::BITCAST, llvm::ISD::BUILD_VECTOR, llvm::ISD::CONCAT_VECTORS, llvm::ISD::DELETED_NODE, DL, llvm::ISD::EXTRACT_SUBVECTOR, llvm::ISD::FMA, llvm::ISD::FMAD, FoldBUILD_VECTOR(), foldCONCAT_VECTORS(), FoldConstantArithmetic(), FoldSetCC(), llvm::APFloat::fusedMultiplyAdd(), llvm::get(), llvm::SDNode::getAsAPIntVal(), llvm::SDNode::getAsZExtVal(), llvm::APInt::getBitWidth(), getConstantFP(), getDataLayout(), llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), getUNDEF(), llvm::ConstantFPSDNode::getValueAPF(), llvm::SDValue::getValueType(), llvm::EVT::getVectorElementCount(), llvm::EVT::getVectorElementType(), llvm::TargetLoweringBase::getVectorIdxTy(), llvm::EVT::getVectorMinNumElements(), llvm::EVT::getVectorNumElements(), getVTList(), llvm::ConstantSDNode::getZExtValue(), llvm::ISD::INSERT_SUBVECTOR, llvm::ISD::INSERT_VECTOR_ELT, llvm::EVT::isFixedLengthVector(), llvm::EVT::isFloatingPoint(), llvm::EVT::isInteger(), llvm::EVT::isScalableVector(), llvm::SDValue::isUndef(), llvm::EVT::isVector(), isZero(), llvm_unreachable, llvm::APFloat::multiply(), N, NewSDValueDbgMsg(), llvm::APFloatBase::rmNearestTiesToEven, llvm::ISD::SELECT, llvm::ISD::SETCC, simplifySelect(), llvm::ISD::VECTOR_COMPRESS, llvm::ISD::VECTOR_SHUFFLE, llvm::ISD::VECTOR_SPLICE, and llvm::ISD::VSELECT.

◆ getNode() [10/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		EVT	VT,
		SDValue	N1,
		SDValue	N2,
		SDValue	N3,
		SDValue	N4
	)

Definition at line 7901 of file SelectionDAG.cpp.

References DL, llvm::SelectionDAG::FlagInserter::getFlags(), and getNode().

◆ getNode() [11/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		EVT	VT,
		SDValue	N1,
		SDValue	N2,
		SDValue	N3,
		SDValue	N4,
		const SDNodeFlags	Flags
	)

Definition at line 7894 of file SelectionDAG.cpp.

References DL, and getNode().

◆ getNode() [12/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		EVT	VT,
		SDValue	N1,
		SDValue	N2,
		SDValue	N3,
		SDValue	N4,
		SDValue	N5
	)

Definition at line 7916 of file SelectionDAG.cpp.

References DL, llvm::SelectionDAG::FlagInserter::getFlags(), and getNode().

◆ getNode() [13/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		EVT	VT,
		SDValue	N1,
		SDValue	N2,
		SDValue	N3,
		SDValue	N4,
		SDValue	N5,
		const SDNodeFlags	Flags
	)

Definition at line 7909 of file SelectionDAG.cpp.

References DL, and getNode().

◆ getNode() [14/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		EVT	VT,
		SDValue	Operand
	)

Definition at line 6177 of file SelectionDAG.cpp.

References DL, llvm::SelectionDAG::FlagInserter::getFlags(), and getNode().

◆ getNode() [15/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		EVT	VT,
		SDValue	Operand,
		const SDNodeFlags	Flags
	)

Definition at line 6185 of file SelectionDAG.cpp.

◆ getNode() [16/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		SDVTList	VTList
	)

Definition at line 10651 of file SelectionDAG.cpp.

References DL, and getNode().

◆ getNode() [17/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		SDVTList	VTList,
		ArrayRef< SDValue >	Ops
	)

Definition at line 10449 of file SelectionDAG.cpp.

References DL, llvm::SelectionDAG::FlagInserter::getFlags(), and getNode().

◆ getNode() [18/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		SDVTList	VTList,
		ArrayRef< SDValue >	Ops,
		const SDNodeFlags	Flags
	)

Definition at line 10457 of file SelectionDAG.cpp.

References AddNodeIDNode(), llvm::ISD::AND, assert(), llvm::EVT::bitsLT(), llvm::CallingConv::C, canonicalizeCommutativeBinop(), llvm::ISD::DELETED_NODE, DL, llvm::APInt::extractBits(), llvm::ISD::FFREXP, llvm::frexp(), getConstant(), getConstantFP(), getFreeze(), getNode(), getNOT(), llvm::EVT::getScalarSizeInBits(), getValueType(), llvm::EVT::getVectorElementCount(), llvm::EVT::getVectorElementType(), llvm::Hi, llvm::isConstOrConstSplat(), llvm::APFloat::isFinite(), llvm::EVT::isFloatingPoint(), llvm::EVT::isInteger(), llvm::EVT::isVector(), llvm::ConstantSDNode::isZero(), LHS, llvm::Lo, llvm::ISD::MERGE_VALUES, llvm::Mul, N, NewSDValueDbgMsg(), llvm::SDVTList::NumVTs, RHS, llvm::APFloatBase::rmNearestTiesToEven, llvm::ISD::SADDO, llvm::ISD::SADDO_CARRY, llvm::APInt::sext(), llvm::ISD::SHL_PARTS, llvm::ISD::SIGN_EXTEND_INREG, llvm::ArrayRef< T >::size(), llvm::ISD::SMUL_LOHI, llvm::ISD::SRA_PARTS, llvm::ISD::SRL_PARTS, llvm::ISD::SSUBO, llvm::ISD::SSUBO_CARRY, llvm::ISD::STRICT_FP_EXTEND, llvm::ISD::STRICT_FP_ROUND, llvm::ISD::TargetConstant, llvm::APInt::trunc(), llvm::ISD::UADDO, llvm::ISD::UADDO_CARRY, llvm::ISD::UMUL_LOHI, llvm::ISD::USUBO, llvm::ISD::USUBO_CARRY, llvm::SDVTList::VTs, llvm::ISD::XOR, and llvm::APInt::zext().

◆ getNode() [19/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		SDVTList	VTList,
		SDValue	N
	)

Definition at line 10656 of file SelectionDAG.cpp.

References DL, and getNode().

◆ getNode() [20/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		SDVTList	VTList,
		SDValue	N1,
		SDValue	N2
	)

Definition at line 10662 of file SelectionDAG.cpp.

References DL, and getNode().

◆ getNode() [21/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		SDVTList	VTList,
		SDValue	N1,
		SDValue	N2,
		SDValue	N3
	)

Definition at line 10668 of file SelectionDAG.cpp.

References DL, and getNode().

◆ getNode() [22/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		SDVTList	VTList,
		SDValue	N1,
		SDValue	N2,
		SDValue	N3,
		SDValue	N4
	)

Definition at line 10674 of file SelectionDAG.cpp.

References DL, and getNode().

◆ getNode() [23/23]

SDValue SelectionDAG::getNode	(	unsigned	Opcode,
		const SDLoc &	DL,
		SDVTList	VTList,
		SDValue	N1,
		SDValue	N2,
		SDValue	N3,
		SDValue	N4,
		SDValue	N5
	)

Definition at line 10680 of file SelectionDAG.cpp.

References DL, and getNode().

◆ getNodeIfExists() [1/2]

SDNode * SelectionDAG::getNodeIfExists	(	unsigned	Opcode,
		SDVTList	VTList,
		ArrayRef< SDValue >	Ops
	)

getNodeIfExists - Get the specified node if it's already available, or else return NULL.

Definition at line 11266 of file SelectionDAG.cpp.

References llvm::SelectionDAG::FlagInserter::getFlags(), and getNodeIfExists().

◆ getNodeIfExists() [2/2]

SDNode * SelectionDAG::getNodeIfExists	(	unsigned	Opcode,
		SDVTList	VTList,
		ArrayRef< SDValue >	Ops,
		const SDNodeFlags	Flags
	)

Get the specified node if it's already available, or else return NULL.

Definition at line 11274 of file SelectionDAG.cpp.

References AddNodeIDNode(), llvm::SDVTList::NumVTs, and llvm::SDVTList::VTs.

Referenced by combineBitcastToBoolVector(), combineSetCC(), combineX86AddSub(), getInvertedVectorForFMA(), getNodeIfExists(), performDUPCombine(), PerformExtractFpToIntStores(), performFlagSettingCombine(), and tryToWidenSetCCOperands().

◆ getNoMergeSiteInfo()

bool llvm::SelectionDAG::getNoMergeSiteInfo ( const SDNode * Node ) const

inline

Return NoMerge info associated with Node.

Definition at line 2382 of file SelectionDAG.h.

References llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::end(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find(), and I.

Referenced by llvm::ScheduleDAGSDNodes::EmitSchedule().

◆ getNOT()

SDValue SelectionDAG::getNOT	(	const SDLoc &	DL,
		SDValue	Val,
		EVT	VT
	)

Create a bitwise NOT operation as (XOR Val, -1).

getNOT - Create a bitwise NOT operation as (XOR Val, -1).

Definition at line 1601 of file SelectionDAG.cpp.

References DL, getAllOnesConstant(), getNode(), and llvm::ISD::XOR.

Referenced by combineAndNotOrIntoAndNotAnd(), combineAndnp(), combineMOVMSK(), combineSelect(), combineSelectOfTwoConstants(), combineSetCC(), combineSub(), combineVectorPack(), combineVSelectWithAllOnesOrZeros(), combineXor(), EmitVectorComparison(), llvm::TargetLowering::expandAddSubSat(), llvm::TargetLowering::expandCTLZ(), llvm::TargetLowering::expandCTTZ(), llvm::TargetLowering::expandFunnelShift(), foldAndOrOfSETCC(), foldExtendedSignBitTest(), foldVSelectToSignBitSplatMask(), llvm::VECustomDAG::getConstantMask(), getDataClassTest(), getNode(), llvm::TargetLowering::LegalizeSetCCCondCode(), llvm::AMDGPUTargetLowering::LowerFTRUNC(), lowerMSABitClear(), LowerVectorAllEqual(), lowerVectorBitClear(), LowerVSETCC(), performBSPExpandForSVE(), performConcatVectorsCombine(), performINTRINSIC_WO_CHAINCombine(), performSETCCCombine(), performXORCombine(), llvm::TargetLowering::SimplifyDemandedBits(), llvm::TargetLowering::SimplifySetCC(), and visitORCommutative().

◆ getObjectPtrOffset() [1/2]

SDValue llvm::SelectionDAG::getObjectPtrOffset	(	const SDLoc &	SL,
		SDValue	Ptr,
		SDValue	Offset
	)

inline

Definition at line 1082 of file SelectionDAG.h.

References getMemBasePlusOffset(), llvm::SDNodeFlags::NoUnsignedWrap, llvm::Offset, and Ptr.

◆ getObjectPtrOffset() [2/2]

SDValue llvm::SelectionDAG::getObjectPtrOffset	(	const SDLoc &	SL,
		SDValue	Ptr,
		TypeSize	Offset
	)

inline

Create an add instruction with appropriate flags when used for addressing some offset of an object.

i.e. if a load is split into multiple components, create an add nuw from the base pointer to the offset.

Definition at line 1078 of file SelectionDAG.h.

References getMemBasePlusOffset(), llvm::SDNodeFlags::NoUnsignedWrap, llvm::Offset, and Ptr.

Referenced by llvm::TargetLowering::expandUnalignedLoad(), llvm::TargetLowering::expandUnalignedStore(), PerformSplittingMVEEXTToWideningLoad(), PerformSplittingMVETruncToNarrowingStores(), PerformSplittingToNarrowingStores(), PerformSplittingToWideningLoad(), llvm::TargetLowering::scalarizeVectorLoad(), llvm::TargetLowering::scalarizeVectorStore(), llvm::TargetLowering::SimplifySetCC(), llvm::AMDGPUTargetLowering::SplitVectorLoad(), and llvm::AMDGPUTargetLowering::SplitVectorStore().

◆ getOpcode_EXTEND()

static unsigned llvm::SelectionDAG::getOpcode_EXTEND ( unsigned Opcode )

inlinestatic

Convert *_EXTEND_VECTOR_INREG to *_EXTEND opcode.

Definition at line 934 of file SelectionDAG.h.

References llvm::ISD::ANY_EXTEND, llvm::ISD::ANY_EXTEND_VECTOR_INREG, llvm_unreachable, llvm::ISD::SIGN_EXTEND, llvm::ISD::SIGN_EXTEND_VECTOR_INREG, llvm::ISD::ZERO_EXTEND, and llvm::ISD::ZERO_EXTEND_VECTOR_INREG.

Referenced by combineEXTEND_VECTOR_INREG(), and foldExtendVectorInregToExtendOfSubvector().

◆ getOpcode_EXTEND_VECTOR_INREG()

static unsigned llvm::SelectionDAG::getOpcode_EXTEND_VECTOR_INREG ( unsigned Opcode )

inlinestatic

Convert *_EXTEND to *_EXTEND_VECTOR_INREG opcode.

Definition at line 950 of file SelectionDAG.h.

References llvm::ISD::ANY_EXTEND, llvm::ISD::ANY_EXTEND_VECTOR_INREG, llvm_unreachable, llvm::ISD::SIGN_EXTEND, llvm::ISD::SIGN_EXTEND_VECTOR_INREG, llvm::ISD::ZERO_EXTEND, and llvm::ISD::ZERO_EXTEND_VECTOR_INREG.

Referenced by combineEXTRACT_SUBVECTOR(), getEXTEND_VECTOR_INREG(), LowerAVXExtend(), and matchUnaryShuffle().

◆ getOptLevel()

CodeGenOptLevel llvm::SelectionDAG::getOptLevel ( ) const

inline

Definition at line 494 of file SelectionDAG.h.

Referenced by llvm::FunctionLoweringInfo::set().

◆ getORE()

OptimizationRemarkEmitter & llvm::SelectionDAG::getORE ( ) const

inline

Definition at line 509 of file SelectionDAG.h.

◆ getPartialReduceAdd()

SDValue SelectionDAG::getPartialReduceAdd	(	SDLoc	DL,
		EVT	ReducedTy,
		SDValue	Op1,
		SDValue	Op2
	)

Create the DAG equivalent of vector_partial_reduce where Op1 and Op2 are its operands and ReducedTY is the intrinsic's return type.

Definition at line 2455 of file SelectionDAG.cpp.

References llvm::ISD::ADD, assert(), DL, llvm::ISD::EXTRACT_SUBVECTOR, getNode(), llvm::SDValue::getValueType(), getVectorIdxConstant(), llvm::EVT::getVectorMinNumElements(), and I.

Referenced by performIntrinsicCombine().

◆ getPass()

const Pass * llvm::SelectionDAG::getPass ( ) const

inline

Definition at line 491 of file SelectionDAG.h.

Referenced by llvm::SITargetLowering::LowerFormalArguments(), and llvm::SITargetLowering::passSpecialInputs().

◆ getPCSections()

MDNode * llvm::SelectionDAG::getPCSections ( const SDNode * Node ) const

inline

Return PCSections associated with Node, or nullptr if none exists.

Definition at line 2366 of file SelectionDAG.h.

References llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::end(), and llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find().

Referenced by llvm::ScheduleDAGSDNodes::EmitSchedule().

◆ getPseudoProbeNode()

SDValue SelectionDAG::getPseudoProbeNode	(	const SDLoc &	Dl,
		SDValue	Chain,
		uint64_t	Guid,
		uint64_t	Index,
		uint32_t	Attr
	)

Creates a PseudoProbeSDNode with function GUID Guid and the index of the block Index it is probing, as well as the attributes attr of the probe.

Definition at line 9112 of file SelectionDAG.cpp.

References AddNodeIDNode(), llvm::SDLoc::getDebugLoc(), llvm::SDLoc::getIROrder(), getVTList(), llvm::Guid, N, NewSDValueDbgMsg(), and llvm::ISD::PSEUDO_PROBE.

◆ getPSI()

ProfileSummaryInfo * llvm::SelectionDAG::getPSI ( ) const

inline

Definition at line 510 of file SelectionDAG.h.

◆ getPtrExtendInReg()

SDValue SelectionDAG::getPtrExtendInReg	(	SDValue	Op,
		const SDLoc &	DL,
		EVT	VT
	)

Return the expression required to extend the Op as a pointer value assuming it was the smaller SrcTy value.

This may be either a zero extend or a sign extend.

Definition at line 1590 of file SelectionDAG.cpp.

References DL, and getZeroExtendInReg().

◆ getPtrExtOrTrunc()

SDValue SelectionDAG::getPtrExtOrTrunc	(	SDValue	Op,
		const SDLoc &	DL,
		EVT	VT
	)

Convert Op, which must be of integer type, to the integer type VT, by either truncating it or performing either zero or sign extension as appropriate extension for the pointer's semantics.

Definition at line 1584 of file SelectionDAG.cpp.

References DL, and getZExtOrTrunc().

Referenced by getLoadStackGuard(), and llvm::SelectionDAGBuilder::visitSwitchCase().

◆ getReducedAlign()

Align SelectionDAG::getReducedAlign	(	EVT	VT,
		bool	UseABI
	)

In most cases this function returns the ABI alignment for a given type, except for illegal vector types where the alignment exceeds that of the stack.

In such cases we attempt to break the vector down to a legal type and return the ABI alignment for that instead.

Definition at line 2722 of file SelectionDAG.cpp.

References DL, getContext(), getDataLayout(), llvm::TargetSubtargetInfo::getFrameLowering(), getMachineFunction(), llvm::TargetFrameLowering::getStackAlign(), llvm::MachineFunction::getSubtarget(), llvm::EVT::getTypeForEVT(), llvm::TargetLoweringBase::getVectorTypeBreakdown(), llvm::TargetLoweringBase::isTypeLegal(), and llvm::EVT::isVector().

Referenced by llvm::TargetLowering::expandVECTOR_COMPRESS(), and llvm::TargetLowering::expandVectorSplice().

◆ getRegister()

SDValue SelectionDAG::getRegister	(	Register	Reg,
		EVT	VT
	)

Definition at line 2307 of file SelectionDAG.cpp.

References AddNodeIDNode(), getVTList(), llvm::TargetLowering::isSDNodeSourceOfDivergence(), N, and llvm::ISD::Register.

◆ getRegisterMask()

SDValue SelectionDAG::getRegisterMask ( const uint32_t * RegMask )

◆ getRoot()

const SDValue & llvm::SelectionDAG::getRoot ( ) const

inline

◆ getScatterVP()

SDValue SelectionDAG::getScatterVP	(	SDVTList	VTs,
		EVT	VT,
		const SDLoc &	dl,
		ArrayRef< SDValue >	Ops,
		MachineMemOperand *	MMO,
		ISD::MemIndexType	IndexType
	)

Definition at line 9880 of file SelectionDAG.cpp.

References AddNodeIDNode(), assert(), llvm::MachinePointerInfo::getAddrSpace(), llvm::SDLoc::getDebugLoc(), llvm::MachineMemOperand::getFlags(), llvm::SDLoc::getIROrder(), llvm::MachineMemOperand::getPointerInfo(), llvm::EVT::getRawBits(), llvm::details::FixedOrScalableQuantity< ElementCount, unsigned >::isKnownGE(), N, NewSDValueDbgMsg(), and llvm::ArrayRef< T >::size().

Referenced by llvm::RISCVTargetLowering::PerformDAGCombine().

◆ getSelect()

SDValue llvm::SelectionDAG::getSelect	(	const SDLoc &	DL,
		EVT	VT,
		SDValue	Cond,
		SDValue	LHS,
		SDValue	RHS,
		SDNodeFlags	Flags = `SDNodeFlags()`
	)

inline

Helper function to make it easier to build Select's if you just have operands and don't want to check for vector.

Definition at line 1275 of file SelectionDAG.h.

References assert(), Cond, DL, getNode(), LHS, RHS, llvm::ISD::SELECT, and llvm::ISD::VSELECT.

◆ getSelectCC()

SDValue llvm::SelectionDAG::getSelectCC	(	const SDLoc &	DL,
		SDValue	LHS,
		SDValue	RHS,
		SDValue	True,
		SDValue	False,
		ISD::CondCode	Cond
	)

inline

Helper function to make it easier to build SelectCC's if you just have an ISD::CondCode instead of an SDValue.

Definition at line 1285 of file SelectionDAG.h.

References Cond, DL, getCondCode(), getNode(), llvm::SDValue::getValueType(), LHS, RHS, and llvm::ISD::SELECT_CC.

Referenced by llvm::TargetLowering::createSelectForFMINNUM_FMAXNUM(), createVariablePermute(), llvm::TargetLowering::expandFixedPointMul(), llvm::TargetLowering::expandFMINIMUMNUM_FMAXIMUMNUM(), llvm::TargetLowering::expandFP_TO_SINT(), llvm::TargetLowering::expandMUL_LOHI(), llvm::AMDGPUTargetLowering::LowerFP_TO_FP16(), lowerFP_TO_INT_SAT(), llvm::AMDGPUTargetLowering::LowerSDIVREM(), llvm::AMDGPUTargetLowering::LowerUDIVREM64(), llvm::R600TargetLowering::PerformDAGCombine(), and performFP_TO_INT_SATCombine().

◆ getSelectionDAGInfo()

const SelectionDAGTargetInfo & llvm::SelectionDAG::getSelectionDAGInfo ( ) const

inline

Definition at line 503 of file SelectionDAG.h.

◆ getSetCC()

SDValue llvm::SelectionDAG::getSetCC	(	const SDLoc &	DL,
		EVT	VT,
		SDValue	LHS,
		SDValue	RHS,
		ISD::CondCode	Cond,
		SDValue	Chain = `SDValue()`,
		bool	IsSignaling = `false`
	)

inline

Helper function to make it easier to build SetCC's if you just have an ISD::CondCode instead of an SDValue.

Definition at line 1246 of file SelectionDAG.h.

References assert(), Cond, DL, getCondCode(), getNode(), llvm::EVT::isVector(), LHS, RHS, llvm::ISD::SETCC, llvm::ISD::SETCC_INVALID, llvm::ISD::STRICT_FSETCC, and llvm::ISD::STRICT_FSETCCS.

◆ getSetCCVP()

SDValue llvm::SelectionDAG::getSetCCVP	(	const SDLoc &	DL,
		EVT	VT,
		SDValue	LHS,
		SDValue	RHS,
		ISD::CondCode	Cond,
		SDValue	Mask,
		SDValue	EVL
	)

inline

Helper function to make it easier to build VP_SETCCs if you just have an ISD::CondCode instead of an SDValue.

Definition at line 1263 of file SelectionDAG.h.

References assert(), Cond, DL, getCondCode(), getNode(), LHS, RHS, and llvm::ISD::SETCC_INVALID.

Referenced by llvm::TargetLowering::LegalizeSetCCCondCode().

◆ getSetFPEnv()

SDValue SelectionDAG::getSetFPEnv	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Ptr,
		EVT	MemVT,
		MachineMemOperand *	MMO
	)

Definition at line 10177 of file SelectionDAG.cpp.

References AddNodeIDNode(), assert(), llvm::MachinePointerInfo::getAddrSpace(), llvm::SDLoc::getDebugLoc(), llvm::MachineMemOperand::getFlags(), llvm::SDLoc::getIROrder(), llvm::MachineMemOperand::getPointerInfo(), llvm::EVT::getRawBits(), llvm::SDValue::getValueType(), getVTList(), N, NewSDValueDbgMsg(), Ptr, and llvm::ISD::SET_FPENV_MEM.

◆ getSExtOrTrunc()

SDValue SelectionDAG::getSExtOrTrunc	(	SDValue	Op,
		const SDLoc &	DL,
		EVT	VT
	)

Convert Op, which must be of integer type, to the integer type VT, by either sign-extending or truncating it.

Definition at line 1481 of file SelectionDAG.cpp.

References llvm::EVT::bitsGT(), DL, getNode(), llvm::ISD::SIGN_EXTEND, and llvm::ISD::TRUNCATE.

Referenced by combineGatherScatter(), combineShuffleOfScalars(), combineToExtendBoolVectorInReg(), createVPDPBUSD(), llvm::TargetLowering::CTTZTableLookup(), llvm::TargetLowering::expandAddSubSat(), llvm::TargetLowering::expandCMP(), llvm::TargetLowering::expandFP_TO_SINT(), foldCONCAT_VECTORS(), getBitcastedSExtOrTrunc(), getExtOrTrunc(), llvm::VECustomDAG::getMaskBroadcast(), getNode(), LowerADDSUBSAT(), LowerBITCAST(), llvm::HexagonTargetLowering::LowerLoad(), LowerMULO(), llvm::HexagonTargetLowering::LowerSETCC(), llvm::HexagonTargetLowering::LowerVECTOR_SHIFT(), LowerVectorAllEqual(), llvm::HexagonTargetLowering::LowerVSELECT(), LowerVSETCC(), llvm::AMDGPUTargetLowering::performMulCombine(), llvm::AMDGPUTargetLowering::performMulhsCombine(), llvm::AMDGPUTargetLowering::performMulLoHiCombine(), tryLowerPartialReductionToDot(), and vectorToScalarBitmask().

◆ getShiftAmountConstant() [1/2]

SDValue SelectionDAG::getShiftAmountConstant	(	const APInt &	Val,
		EVT	VT,
		const SDLoc &	DL
	)

Definition at line 1797 of file SelectionDAG.cpp.

References assert(), DL, llvm::EVT::getScalarSizeInBits(), getShiftAmountConstant(), llvm::APInt::getZExtValue(), and llvm::APInt::ult().

◆ getShiftAmountConstant() [2/2]

SDValue SelectionDAG::getShiftAmountConstant	(	uint64_t	Val,
		EVT	VT,
		const SDLoc &	DL
	)

Definition at line 1790 of file SelectionDAG.cpp.

References assert(), DL, getConstant(), getDataLayout(), llvm::TargetLoweringBase::getShiftAmountTy(), and llvm::EVT::isInteger().

◆ getShiftAmountOperand()

SDValue SelectionDAG::getShiftAmountOperand	(	EVT	LHSTy,
		SDValue	Op
	)

Return the specified value casted to the target's desired shift amount type.

getShiftAmountOperand - Return the specified value casted to the target's desired shift amount type.

Definition at line 2447 of file SelectionDAG.cpp.

References getDataLayout(), llvm::TargetLoweringBase::getShiftAmountTy(), getZExtOrTrunc(), and llvm::EVT::isVector().

Referenced by LowerCTPOP(), and UnrollVectorOp().

◆ getSignedConstant()

SDValue SelectionDAG::getSignedConstant	(	int64_t	Val,
		const SDLoc &	DL,
		EVT	VT,
		bool	isTarget = `false`,
		bool	isOpaque = `false`
	)

Definition at line 1773 of file SelectionDAG.cpp.

References DL, getConstant(), llvm::EVT::getScalarSizeInBits(), and Size.

Referenced by llvm::TargetLowering::BuildSDIV(), constantFoldBFE(), emitMemMemReg(), expandVAArg(), foldMaskedShiftToScaledMask(), getAArch64Cmp(), getCSAddressAndShifts(), llvm::AVRTargetLowering::getPreIndexedAddressParts(), getSignedTargetConstant(), isBLACompatibleAddress(), lowerBuildVectorOfConstants(), LowerDYNAMIC_STACKALLOC(), llvm::SITargetLowering::lowerDYNAMIC_STACKALLOCImpl(), LowerFP_TO_INT_SAT(), llvm::RISCVTargetLowering::LowerOperation(), lowerShuffleAsBlend(), LowerVECTOR_SHUFFLEv8i8(), performCONCAT_VECTORSCombine(), llvm::RISCVTargetLowering::PerformDAGCombine(), performSETCCCombine(), llvm::SelectionDAGISel::SelectCodeCommon(), transformAddImmMulImm(), and tryConvertSVEWideCompare().

◆ getSignedTargetConstant()

SDValue llvm::SelectionDAG::getSignedTargetConstant	(	int64_t	Val,
		const SDLoc &	DL,
		EVT	VT,
		bool	isOpaque = `false`
	)

inline

Definition at line 710 of file SelectionDAG.h.

References DL, and getSignedConstant().

◆ getSplat()

SDValue llvm::SelectionDAG::getSplat	(	EVT	VT,
		const SDLoc &	DL,
		SDValue	Op
	)

inline

Returns a node representing a splat of one value into all lanes of the provided vector type.

This is a utility which returns either a BUILD_VECTOR or SPLAT_VECTOR depending on the scalability of the desired vector type.

Definition at line 904 of file SelectionDAG.h.

References assert(), DL, getSplatBuildVector(), getSplatVector(), llvm::EVT::isScalableVector(), and llvm::EVT::isVector().

Referenced by combineToExtendBoolVectorInReg(), llvm::TargetLowering::expandVPCTTZElements(), getConstant(), getConstantFP(), llvm::SelectionDAGBuilder::getValueImpl(), performCONCAT_VECTORSCombine(), llvm::RISCVTargetLowering::PerformDAGCombine(), refineUniformBase(), scalarizeBinOpOfSplats(), and takeInexpensiveLog2().

◆ getSplatBuildVector()

SDValue llvm::SelectionDAG::getSplatBuildVector	(	EVT	VT,
		const SDLoc &	DL,
		SDValue	Op
	)

inline

Return a splat ISD::BUILD_VECTOR node, consisting of Op splatted to all elements.

VT must be a vector type. Op's type must be the same as (or, for integers, a type wider than) VT's element type.

Definition at line 871 of file SelectionDAG.h.

References assert(), llvm::EVT::bitsLE(), llvm::ISD::BUILD_VECTOR, DL, getNode(), llvm::EVT::getVectorElementType(), llvm::EVT::getVectorNumElements(), llvm::EVT::isInteger(), and llvm::ISD::UNDEF.

Referenced by combineGatherScatter(), llvm::ARMSelectionDAGInfo::EmitTargetCodeForMemset(), getMemsetValue(), getSplat(), getVectorShuffle(), lowerBUILD_VECTOR(), and lowerBuildVectorViaDominantValues().

◆ getSplatSourceVector()

SDValue SelectionDAG::getSplatSourceVector	(	SDValue	V,
		int &	SplatIndex
	)

If V is a splatted value, return the source vector and its splat index.

Definition at line 3208 of file SelectionDAG.cpp.

References assert(), llvm::countr_one(), llvm::APInt::getAllOnes(), getUNDEF(), llvm::EVT::getVectorNumElements(), Idx, llvm::EVT::isScalableVector(), isSplatValue(), llvm::APInt::isSubsetOf(), llvm::peekThroughExtractSubvectors(), llvm::ISD::SPLAT_VECTOR, and llvm::ISD::VECTOR_SHUFFLE.

Referenced by getSplatValue(), LowerFunnelShift(), LowerRotate(), LowerShiftByScalarVariable(), and scalarizeBinOpOfSplats().

◆ getSplatValue()

SDValue SelectionDAG::getSplatValue	(	SDValue	V,
		bool	LegalTypes = `false`
	)

If V is a splat vector, return its scalar source operand by extracting that element from the source vector.

If LegalTypes is true, this method may only return a legally-typed splat value. If it cannot legalize the splatted value it will return SDValue().

Definition at line 3260 of file SelectionDAG.cpp.

References llvm::EVT::bitsLT(), llvm::ISD::EXTRACT_VECTOR_ELT, getContext(), getNode(), llvm::EVT::getScalarType(), getSplatSourceVector(), llvm::TargetLoweringBase::getTypeToTransformTo(), getVectorIdxConstant(), llvm::EVT::isInteger(), and llvm::TargetLoweringBase::isTypeLegal().

Referenced by canLowerSRLToRoundingShiftForVT(), findMoreOptimalIndexType(), foldIndexIntoBase(), PerformVSetCCToVCTPCombine(), and refineUniformBase().

◆ getSplatVector()

SDValue llvm::SelectionDAG::getSplatVector	(	EVT	VT,
		const SDLoc &	DL,
		SDValue	Op
	)

inline

Definition at line 888 of file SelectionDAG.h.

References assert(), llvm::EVT::bitsLE(), DL, getNode(), llvm::EVT::getVectorElementType(), llvm::EVT::isInteger(), llvm::ISD::SPLAT_VECTOR, and llvm::ISD::UNDEF.

Referenced by BuildExactSDIV(), BuildExactUDIV(), llvm::TargetLowering::BuildSDIV(), llvm::TargetLowering::BuildUDIV(), FoldConstantArithmetic(), getSplat(), getWideningInterleave(), lowerBUILD_VECTOR(), and LowerVectorMatch().

◆ GetSplitDestVTs()

std::pair< EVT, EVT > SelectionDAG::GetSplitDestVTs ( const EVT & VT ) const

Compute the VTs needed for the low/hi parts of a type which is split (or expanded) into two not necessarily identical pieces.

GetSplitDestVTs - Compute the VTs needed for the low/hi parts of a type which is split (or expanded) into two not necessarily identical pieces.

Definition at line 12940 of file SelectionDAG.cpp.

References getContext(), llvm::EVT::getHalfNumVectorElementsVT(), llvm::TargetLoweringBase::getTypeToTransformTo(), and llvm::EVT::isVector().

Referenced by llvm::TargetLowering::expandVectorNaryOpBySplitting(), LowerCVTPS2PH(), LowerMULO(), llvm::X86TargetLowering::ReplaceNodeResults(), ReplaceReductionResults(), SplitStrictFPVectorOp(), llvm::SITargetLowering::splitTernaryVectorOp(), SplitVector(), SplitVectorOp(), splitVectorOp(), SplitVPOp(), and splitVSETCC().

◆ getSrcValue()

SDValue SelectionDAG::getSrcValue ( const Value * v )

Construct a node to track a Value* through the backend.

Definition at line 2382 of file SelectionDAG.cpp.

References AddNodeIDNode(), getVTList(), N, and llvm::ISD::SRCVALUE.

Referenced by llvm::SelectionDAGBuilder::LowerAsSTATEPOINT().

◆ getStackArgumentTokenFactor()

SDValue SelectionDAG::getStackArgumentTokenFactor ( SDValue Chain )

Compute a TokenFactor to force all the incoming stack arguments to be loaded from the stack.

getStackArgumentTokenFactor - Compute a TokenFactor to force all the incoming stack arguments to be loaded from the stack.

This is used in tail call lowering to protect stack arguments from being clobbered.

Definition at line 7927 of file SelectionDAG.cpp.

References getEntryNode(), getNode(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::ISD::TokenFactor, and users.

◆ getStepVector() [1/2]

SDValue SelectionDAG::getStepVector	(	const SDLoc &	DL,
		EVT	ResVT
	)

Returns a vector of type ResVT whose elements contain the linear sequence <0, 1, 2, 3, ...>

Definition at line 2099 of file SelectionDAG.cpp.

References DL, llvm::EVT::getScalarSizeInBits(), and getStepVector().

◆ getStepVector() [2/2]

SDValue SelectionDAG::getStepVector	(	const SDLoc &	DL,
		EVT	ResVT,
		const APInt &	StepVal
	)

Returns a vector of type ResVT whose elements contain the linear sequence <0, Step, Step * 2, Step * 3, ...>

Definition at line 2104 of file SelectionDAG.cpp.

References assert(), DL, llvm::APInt::getBitWidth(), getBuildVector(), getConstant(), getNode(), llvm::EVT::getScalarSizeInBits(), getTargetConstant(), llvm::EVT::getVectorElementType(), llvm::EVT::getVectorNumElements(), llvm::EVT::isScalableVector(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), and llvm::ISD::STEP_VECTOR.

Referenced by llvm::TargetLowering::expandVPCTTZElements(), findMoreOptimalIndexType(), FoldConstantArithmetic(), getStepVector(), and LowerSVEIntrinsicIndex().

◆ getStore() [1/3]

SDValue SelectionDAG::getStore	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Val,
		SDValue	Ptr,
		MachineMemOperand *	MMO
	)

Definition at line 9319 of file SelectionDAG.cpp.

References AddNodeIDNode(), assert(), llvm::MachinePointerInfo::getAddrSpace(), llvm::SDLoc::getDebugLoc(), llvm::MachineMemOperand::getFlags(), llvm::SDLoc::getIROrder(), llvm::MachineMemOperand::getPointerInfo(), llvm::EVT::getRawBits(), getUNDEF(), llvm::SDValue::getValueType(), getVTList(), N, NewSDValueDbgMsg(), Ptr, llvm::ISD::STORE, and llvm::ISD::UNINDEXED.

◆ getStore() [2/3]

SDValue SelectionDAG::getStore	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Val,
		SDValue	Ptr,
		MachinePointerInfo	PtrInfo,
		Align	Alignment,
		MachineMemOperand::Flags	MMOFlags = `MachineMemOperand::MONone`,
		const AAMDNodes &	AAInfo = `AAMDNodes()`
	)

Helper function to build ISD::STORE nodes.

This function will set the MOStore flag on MMOFlags, but you can set it if you want. The MOLoad and MOInvariant flags must not be set.

Definition at line 9299 of file SelectionDAG.cpp.

References assert(), getMachineFunction(), llvm::MachineFunction::getMachineMemOperand(), getStore(), llvm::EVT::getStoreSize(), llvm::SDValue::getValueType(), InferPointerInfo(), llvm::PointerUnion< PTs >::isNull(), llvm::MachineMemOperand::MOLoad, llvm::MachineMemOperand::MOStore, llvm::LocationSize::precise(), Ptr, Size, and llvm::MachinePointerInfo::V.

◆ getStore() [3/3]

SDValue llvm::SelectionDAG::getStore	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Val,
		SDValue	Ptr,
		MachinePointerInfo	PtrInfo,
		MaybeAlign	Alignment = `MaybeAlign()`,
		MachineMemOperand::Flags	MMOFlags = `MachineMemOperand::MONone`,
		const AAMDNodes &	AAInfo = `AAMDNodes()`
	)

inline

Definition at line 1430 of file SelectionDAG.h.

References getEVTAlign(), getStore(), llvm::SDValue::getValueType(), and Ptr.

◆ getStoreVP()

SDValue SelectionDAG::getStoreVP	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Val,
		SDValue	Ptr,
		SDValue	Offset,
		SDValue	Mask,
		SDValue	EVL,
		EVT	MemVT,
		MachineMemOperand *	MMO,
		ISD::MemIndexedMode	AM,
		bool	IsTruncating = `false`,
		bool	IsCompressing = `false`
	)

Definition at line 9563 of file SelectionDAG.cpp.

References AddNodeIDNode(), assert(), llvm::MachinePointerInfo::getAddrSpace(), llvm::SDLoc::getDebugLoc(), llvm::MachineMemOperand::getFlags(), llvm::SDLoc::getIROrder(), llvm::MachineMemOperand::getPointerInfo(), llvm::EVT::getRawBits(), llvm::SDValue::getValueType(), getVTList(), Indexed, N, NewSDValueDbgMsg(), llvm::Offset, Ptr, and llvm::ISD::UNINDEXED.

Referenced by getTruncStoreVP(), and llvm::RISCVTargetLowering::PerformDAGCombine().

◆ getStrictFPExtendOrRound()

std::pair< SDValue, SDValue > SelectionDAG::getStrictFPExtendOrRound	(	SDValue	Op,
		SDValue	Chain,
		const SDLoc &	DL,
		EVT	VT
	)

Convert Op, which must be a STRICT operation of float type, to the float type VT, by either extending or rounding (by truncation).

Definition at line 1462 of file SelectionDAG.cpp.

References assert(), llvm::EVT::bitsEq(), llvm::EVT::bitsGT(), DL, getIntPtrConstant(), llvm::SDValue::getNode(), getNode(), llvm::ISD::STRICT_FP_EXTEND, and llvm::ISD::STRICT_FP_ROUND.

Referenced by llvm::RISCVTargetLowering::LowerOperation(), and LowerUINT_TO_FP_i32().

◆ getStridedLoadVP() [1/2]

SDValue SelectionDAG::getStridedLoadVP	(	EVT	VT,
		const SDLoc &	DL,
		SDValue	Chain,
		SDValue	Ptr,
		SDValue	Stride,
		SDValue	Mask,
		SDValue	EVL,
		MachineMemOperand *	MMO,
		bool	IsExpanding = `false`
	)

Definition at line 9733 of file SelectionDAG.cpp.

References DL, getStridedLoadVP(), getUNDEF(), llvm::ISD::NON_EXTLOAD, Ptr, and llvm::ISD::UNINDEXED.

◆ getStridedLoadVP() [2/2]

SDValue SelectionDAG::getStridedLoadVP	(	ISD::MemIndexedMode	AM,
		ISD::LoadExtType	ExtType,
		EVT	VT,
		const SDLoc &	DL,
		SDValue	Chain,
		SDValue	Ptr,
		SDValue	Offset,
		SDValue	Stride,
		SDValue	Mask,
		SDValue	EVL,
		EVT	MemVT,
		MachineMemOperand *	MMO,
		bool	IsExpanding = `false`
	)

Definition at line 9699 of file SelectionDAG.cpp.

References AddNodeIDNode(), assert(), DL, llvm::MachinePointerInfo::getAddrSpace(), llvm::MachineMemOperand::getPointerInfo(), llvm::EVT::getRawBits(), getVTList(), Indexed, N, NewSDValueDbgMsg(), llvm::Offset, Ptr, and llvm::ISD::UNINDEXED.

Referenced by getExtStridedLoadVP(), getStridedLoadVP(), performCONCAT_VECTORSCombine(), and llvm::RISCVTargetLowering::PerformDAGCombine().

◆ getStridedStoreVP()

SDValue SelectionDAG::getStridedStoreVP	(	SDValue	Chain,
		const SDLoc &	DL,
		SDValue	Val,
		SDValue	Ptr,
		SDValue	Offset,
		SDValue	Stride,
		SDValue	Mask,
		SDValue	EVL,
		EVT	MemVT,
		MachineMemOperand *	MMO,
		ISD::MemIndexedMode	AM,
		bool	IsTruncating = `false`,
		bool	IsCompressing = `false`
	)

Definition at line 9752 of file SelectionDAG.cpp.

References AddNodeIDNode(), assert(), DL, llvm::MachinePointerInfo::getAddrSpace(), llvm::MachineMemOperand::getPointerInfo(), llvm::EVT::getRawBits(), llvm::SDValue::getValueType(), getVTList(), Indexed, N, NewSDValueDbgMsg(), llvm::Offset, Ptr, and llvm::ISD::UNINDEXED.

Referenced by getTruncStridedStoreVP().

◆ getSubtarget() [1/2]

const TargetSubtargetInfo & llvm::SelectionDAG::getSubtarget ( ) const

inline

Definition at line 497 of file SelectionDAG.h.

References llvm::MachineFunction::getSubtarget().

Referenced by combineCommutableSHUFP(), emitComparison(), emitConditionalComparison(), emitStrictFPComparison(), llvm::HexagonSelectionDAGInfo::EmitTargetCodeForMemcpy(), llvm::XCoreSelectionDAGInfo::EmitTargetCodeForMemcpy(), findMoreOptimalIndexType(), GenerateFixedLengthSVETBL(), getPredicateForFixedLengthVector(), GetTLSADDR(), init(), isAllActivePredicate(), llvm::PPC::isVPKUDUMShuffleMask(), lowerMSASplatZExt(), llvm::HexagonTargetLowering::LowerToTLSGeneralDynamicModel(), LowerVectorFP_TO_INT(), LowerVectorINT_TO_FP(), optimizeIncrementingWhile(), patchMatchingInput(), performBuildVectorCombine(), performExtractVectorEltCombine(), performSVEMulAddSubCombine(), recoverFramePointer(), llvm::AMDGPUDAGToDAGISel::SelectBuildVector(), truncateVecElts(), tryAdvSIMDModImm16(), tryAdvSIMDModImm32(), tryCombineToBSL(), and vectorToScalarBitmask().

◆ getSubtarget() [2/2]

template<typename STC >

const STC & llvm::SelectionDAG::getSubtarget ( ) const

inline

Definition at line 498 of file SelectionDAG.h.

References llvm::MachineFunction::getSubtarget().

◆ getSymbolFunctionGlobalAddress()

SDValue SelectionDAG::getSymbolFunctionGlobalAddress	(	SDValue	Op,
		Function **	TargetFunction = `nullptr`
	)

Return a GlobalAddress of the function from the current module with name matching the given ExternalSymbol.

Additionally can provide the matched function. Panic if the function doesn't exist.

Definition at line 12157 of file SelectionDAG.cpp.

References assert(), llvm::GlobalValue::getAddressSpace(), getDataLayout(), llvm::MachineFunction::getFunction(), llvm::Module::getFunction(), getGlobalAddress(), llvm::GlobalValue::getParent(), llvm::TargetLoweringBase::getPointerTy(), and llvm::report_fatal_error().

Referenced by llvm::NVPTXTargetLowering::LowerCall().

◆ getTarget()

const TargetMachine & llvm::SelectionDAG::getTarget ( ) const

inline

Definition at line 496 of file SelectionDAG.h.

Referenced by llvm::AMDGPUTargetLowering::allowApproxFunc(), canCreateUndefOrPoison(), canOptimizeTLSDFormToXForm(), combineFaddCFmul(), combineFMinFMax(), combineFMinNumFMaxNum(), combineSelect(), llvm::ScheduleDAGSDNodes::EmitSchedule(), llvm::TargetLowering::expandFMINIMUMNUM_FMAXIMUMNUM(), llvm::TargetLowering::expandIndirectJTBranch(), llvm::RISCVTargetLowering::expandIndirectJTBranch(), llvm::X86TargetLowering::expandIndirectJTBranch(), foldFPToIntToFP(), getMemcpy(), getMemmove(), getMemset(), llvm::TargetLowering::getNegatedExpression(), GetTLSADDR(), llvm::SITargetLowering::isEligibleForTailCallOptimization(), isEligibleToFoldADDIForFasterLocalAccesses(), isFMAddSubOrFMSubAdd(), isKnownNeverNaN(), isLegalToCombineMinNumMaxNum(), llvm::LoongArchTargetLowering::LowerCall(), llvm::VETargetLowering::LowerCall(), llvm::SelectionDAGBuilder::LowerCallTo(), llvm::SelectionDAGBuilder::LowerDeoptimizingReturn(), LowerFMINIMUM_FMAXIMUM(), llvm::SparcTargetLowering::LowerGlobalTLSAddress(), llvm::VETargetLowering::lowerINTRINSIC_WO_CHAIN(), transformCallee(), and llvm::SelectionDAGBuilder::visitSPDescriptorFailure().

◆ getTargetBlockAddress()

SDValue llvm::SelectionDAG::getTargetBlockAddress	(	const BlockAddress *	BA,
		EVT	VT,
		int64_t	Offset = `0`,
		unsigned	TargetFlags = `0`
	)

inline

Definition at line 794 of file SelectionDAG.h.

References getBlockAddress(), and llvm::Offset.

Referenced by getTargetNode(), llvm::TargetLowering::LowerAsmOperandForConstraint(), llvm::X86TargetLowering::LowerAsmOperandForConstraint(), llvm::HexagonTargetLowering::LowerBlockAddress(), llvm::MSP430TargetLowering::LowerBlockAddress(), llvm::SparcTargetLowering::withTargetFlags(), and llvm::VETargetLowering::withTargetFlags().

◆ getTargetConstant() [1/3]

SDValue llvm::SelectionDAG::getTargetConstant	(	const APInt &	Val,
		const SDLoc &	DL,
		EVT	VT,
		bool	isOpaque = `false`
	)

inline

Definition at line 702 of file SelectionDAG.h.

References DL, and getConstant().

◆ getTargetConstant() [2/3]

SDValue llvm::SelectionDAG::getTargetConstant	(	const ConstantInt &	Val,
		const SDLoc &	DL,
		EVT	VT,
		bool	isOpaque = `false`
	)

inline

Definition at line 706 of file SelectionDAG.h.

References DL, and getConstant().

◆ getTargetConstant() [3/3]

SDValue llvm::SelectionDAG::getTargetConstant	(	uint64_t	Val,
		const SDLoc &	DL,
		EVT	VT,
		bool	isOpaque = `false`
	)

inline

Definition at line 698 of file SelectionDAG.h.

References DL, and getConstant().

◆ getTargetConstantFP() [1/3]

SDValue llvm::SelectionDAG::getTargetConstantFP	(	const APFloat &	Val,
		const SDLoc &	DL,
		EVT	VT
	)

inline

Definition at line 737 of file SelectionDAG.h.

References DL, and getConstantFP().

◆ getTargetConstantFP() [2/3]

SDValue llvm::SelectionDAG::getTargetConstantFP	(	const ConstantFP &	Val,
		const SDLoc &	DL,
		EVT	VT
	)

inline

Definition at line 740 of file SelectionDAG.h.

References DL, and getConstantFP().

◆ getTargetConstantFP() [3/3]

SDValue llvm::SelectionDAG::getTargetConstantFP	(	double	Val,
		const SDLoc &	DL,
		EVT	VT
	)

inline

Definition at line 734 of file SelectionDAG.h.

References DL, and getConstantFP().

Referenced by pickOpcodeForVectorStParam(), and llvm::SelectionDAGISel::SelectCodeCommon().

◆ getTargetConstantPool() [1/2]

SDValue llvm::SelectionDAG::getTargetConstantPool	(	const Constant *	C,
		EVT	VT,
		MaybeAlign	Align = `std::nullopt`,
		int	Offset = `0`,
		unsigned	TargetFlags = `0`
	)

inline

Definition at line 765 of file SelectionDAG.h.

References llvm::CallingConv::C, getConstantPool(), and llvm::Offset.

Referenced by getLargeExternalSymbol(), getLargeGlobalAddress(), getTargetNode(), llvm::XtensaTargetLowering::LowerCall(), llvm::HexagonTargetLowering::LowerConstantPool(), llvm::LanaiTargetLowering::LowerConstantPool(), promoteToConstantPool(), llvm::SparcTargetLowering::withTargetFlags(), and llvm::VETargetLowering::withTargetFlags().

◆ getTargetConstantPool() [2/2]

SDValue llvm::SelectionDAG::getTargetConstantPool	(	MachineConstantPoolValue *	C,
		EVT	VT,
		MaybeAlign	Align = `std::nullopt`,
		int	Offset = `0`,
		unsigned	TargetFlags = `0`
	)

inline

Definition at line 773 of file SelectionDAG.h.

References llvm::CallingConv::C, getConstantPool(), and llvm::Offset.

◆ getTargetExternalSymbol()

SDValue SelectionDAG::getTargetExternalSymbol	(	const char *	Sym,
		EVT	VT,
		unsigned	TargetFlags = `0`
	)

Definition at line 2048 of file SelectionDAG.cpp.

References getVTList(), N, and Sym.

◆ getTargetExtractSubreg()

SDValue SelectionDAG::getTargetExtractSubreg	(	int	SRIdx,
		const SDLoc &	DL,
		EVT	VT,
		SDValue	Operand
	)

A convenience function for creating TargetInstrInfo::EXTRACT_SUBREG nodes.

getTargetExtractSubreg - A convenience function for creating TargetOpcode::EXTRACT_SUBREG nodes.

Definition at line 11246 of file SelectionDAG.cpp.

References DL, getMachineNode(), and getTargetConstant().

Referenced by llvm::SITargetLowering::buildRSRC(), expandBitCastF128ToI128(), LowerF64Op(), LowerFNEGorFABS(), lowerGR128Binary(), lowerGR128ToI128(), LowerINTRINSIC_W_CHAIN(), narrowIfNeeded(), NarrowVector(), ReplaceCMP_SWAP_128Results(), ReplaceCMP_SWAP_64Results(), llvm::RISCVDAGToDAGISel::Select(), llvm::HexagonDAGToDAGISel::SelectExtractSubvector(), llvm::HvxSelector::selectExtractSubvector(), llvm::HexagonDAGToDAGISel::SelectIndexedStore(), and llvm::HexagonDAGToDAGISel::SelectVAlign().

◆ getTargetFrameIndex()

SDValue llvm::SelectionDAG::getTargetFrameIndex	(	int	FI,
		EVT	VT
	)

inline

◆ getTargetGlobalAddress()

SDValue llvm::SelectionDAG::getTargetGlobalAddress	(	const GlobalValue *	GV,
		const SDLoc &	DL,
		EVT	VT,
		int64_t	offset = `0`,
		unsigned	TargetFlags = `0`
	)

inline

Definition at line 748 of file SelectionDAG.h.

References DL, and getGlobalAddress().

◆ getTargetInsertSubreg()

SDValue SelectionDAG::getTargetInsertSubreg	(	int	SRIdx,
		const SDLoc &	DL,
		EVT	VT,
		SDValue	Operand,
		SDValue	Subreg
	)

A convenience function for creating TargetInstrInfo::INSERT_SUBREG nodes.

getTargetInsertSubreg - A convenience function for creating TargetOpcode::INSERT_SUBREG nodes.

Definition at line 11256 of file SelectionDAG.cpp.

References DL, getMachineNode(), and getTargetConstant().

Referenced by LowerF64Op(), LowerFNEGorFABS(), llvm::RISCVDAGToDAGISel::Select(), and Widen().

◆ getTargetJumpTable()

SDValue llvm::SelectionDAG::getTargetJumpTable	(	int	JTI,
		EVT	VT,
		unsigned	TargetFlags = `0`
	)

inline

Definition at line 758 of file SelectionDAG.h.

References getJumpTable().

Referenced by llvm::HexagonTargetLowering::getPICJumpTableRelocBase(), getTargetNode(), llvm::HexagonTargetLowering::LowerJumpTable(), llvm::LanaiTargetLowering::LowerJumpTable(), llvm::MSP430TargetLowering::LowerJumpTable(), and llvm::VETargetLowering::withTargetFlags().

◆ getTargetLoweringInfo()

const TargetLowering & llvm::SelectionDAG::getTargetLoweringInfo ( ) const

inline

Definition at line 501 of file SelectionDAG.h.

◆ getTokenFactor()

SDValue SelectionDAG::getTokenFactor	(	const SDLoc &	DL,
		SmallVectorImpl< SDValue > &	Vals
	)

Creates a new TokenFactor containing Vals.

If Vals contains 64k values or more, move values into new TokenFactors in 64k-1 blocks, until the final TokenFactor has less than 64k operands.

Definition at line 13511 of file SelectionDAG.cpp.

References llvm::SmallVectorTemplateCommon< T, typename >::begin(), DL, llvm::SmallVectorImpl< T >::emplace_back(), llvm::SmallVectorTemplateCommon< T, typename >::end(), llvm::SmallVectorImpl< T >::erase(), llvm::SDNode::getMaxNumOperands(), getNode(), llvm::SmallVectorBase< Size_T >::size(), llvm::ArrayRef< T >::slice(), and llvm::ISD::TokenFactor.

Referenced by llvm::SITargetLowering::LowerCall().

◆ getTruncStore() [1/3]

SDValue SelectionDAG::getTruncStore	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Val,
		SDValue	Ptr,
		EVT	SVT,
		MachineMemOperand *	MMO
	)

◆ getTruncStore() [2/3]

SDValue SelectionDAG::getTruncStore	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Val,
		SDValue	Ptr,
		MachinePointerInfo	PtrInfo,
		EVT	SVT,
		Align	Alignment,
		MachineMemOperand::Flags	MMOFlags = `MachineMemOperand::MONone`,
		const AAMDNodes &	AAInfo = `AAMDNodes()`
	)

Definition at line 9350 of file SelectionDAG.cpp.

References assert(), getMachineFunction(), llvm::MachineFunction::getMachineMemOperand(), llvm::EVT::getStoreSize(), getTruncStore(), llvm::SDValue::getValueType(), InferPointerInfo(), llvm::PointerUnion< PTs >::isNull(), llvm::MachineMemOperand::MOLoad, llvm::MachineMemOperand::MOStore, llvm::LocationSize::precise(), Ptr, and llvm::MachinePointerInfo::V.

Referenced by chainLoadsAndStoresForMemcpy(), combineStore(), llvm::TargetLowering::expandUnalignedLoad(), llvm::TargetLowering::expandUnalignedStore(), getAddressForMemoryInput(), getMemcpyLoadsAndStores(), getTruncStore(), LowerINTRINSIC_W_CHAIN(), LowerPredicateStore(), llvm::HexagonTargetLowering::LowerStore(), PerformExtractFpToIntStores(), llvm::ARMTargetLowering::PerformMVETruncCombine(), PerformSplittingMVETruncToNarrowingStores(), PerformSplittingToNarrowingStores(), performSTORECombine(), llvm::TargetLowering::scalarizeVectorStore(), ShrinkLoadReplaceStoreWithStore(), llvm::AMDGPUTargetLowering::SplitVectorStore(), and llvm::HexagonDAGToDAGISel::StoreInstrForLoadIntrinsic().

◆ getTruncStore() [3/3]

SDValue llvm::SelectionDAG::getTruncStore	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Val,
		SDValue	Ptr,
		MachinePointerInfo	PtrInfo,
		EVT	SVT,
		MaybeAlign	Alignment = `MaybeAlign()`,
		MachineMemOperand::Flags	MMOFlags = `MachineMemOperand::MONone`,
		const AAMDNodes &	AAInfo = `AAMDNodes()`
	)

inline

Definition at line 1446 of file SelectionDAG.h.

References getEVTAlign(), getTruncStore(), and Ptr.

◆ getTruncStoreVP() [1/2]

SDValue SelectionDAG::getTruncStoreVP	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Val,
		SDValue	Ptr,
		SDValue	Mask,
		SDValue	EVL,
		EVT	SVT,
		MachineMemOperand *	MMO,
		bool	IsCompressing = `false`
	)

◆ getTruncStoreVP() [2/2]

SDValue SelectionDAG::getTruncStoreVP	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Val,
		SDValue	Ptr,
		SDValue	Mask,
		SDValue	EVL,
		MachinePointerInfo	PtrInfo,
		EVT	SVT,
		Align	Alignment,
		MachineMemOperand::Flags	MMOFlags,
		const AAMDNodes &	AAInfo,
		bool	IsCompressing = `false`
	)

Definition at line 9597 of file SelectionDAG.cpp.

References assert(), getMachineFunction(), llvm::MachineFunction::getMachineMemOperand(), llvm::EVT::getStoreSize(), getTruncStoreVP(), llvm::SDValue::getValueType(), InferPointerInfo(), llvm::PointerUnion< PTs >::isNull(), llvm::MachineMemOperand::MOLoad, llvm::MachineMemOperand::MOStore, llvm::LocationSize::precise(), Ptr, and llvm::MachinePointerInfo::V.

Referenced by getTruncStoreVP().

◆ getTruncStridedStoreVP()

SDValue SelectionDAG::getTruncStridedStoreVP	(	SDValue	Chain,
		const SDLoc &	DL,
		SDValue	Val,
		SDValue	Ptr,
		SDValue	Stride,
		SDValue	Mask,
		SDValue	EVL,
		EVT	SVT,
		MachineMemOperand *	MMO,
		bool	IsCompressing = `false`
	)

◆ getUNDEF()

SDValue llvm::SelectionDAG::getUNDEF ( EVT VT )

inline

Return an UNDEF node. UNDEF does not have a useful SDLoc.

Definition at line 1126 of file SelectionDAG.h.

References getNode(), and llvm::ISD::UNDEF.

Referenced by addShuffleForVecExtend(), adjustLoadValueTypeImpl(), buildFromShuffleMostly(), buildMergeScalars(), buildScalarToVector(), llvm::TargetLowering::BuildUDIV(), canonicalizeShuffleMaskWithHorizOp(), collectConcatOps(), CollectOpsToWiden(), combineArithReduction(), combineBasicSADPattern(), combineBinOpToReduce(), combineBitcast(), combineBitcastToBoolVector(), combineBlendOfPermutes(), combineBVOfConsecutiveLoads(), combineConcatVectorOfConcatVectors(), combineConcatVectorOfExtracts(), combineConcatVectorOfShuffleAndItsOperands(), combineConcatVectorOps(), combineEXTRACT_SUBVECTOR(), combineExtractVectorElt(), combineExtractWithShuffle(), combineFP_EXTEND(), combineI8TruncStore(), combineINSERT_SUBVECTOR(), combineLRINT_LLRINT(), combineMaskedLoadConstantMask(), combineSelect(), combineSetCCAtomicArith(), combineShuffleOfBitcast(), combineShuffleOfConcatUndef(), combineShuffleOfScalars(), combineShuffleOfSplatVal(), combineSVEReductionOrderedFP(), combineTargetShuffle(), combineToHorizontalAddSub(), combineTruncateWithSat(), combineTruncToVnclip(), combineVectorPack(), combineVPDPBUSDPattern(), combineX86ShuffleChain(), combineX86ShufflesRecursively(), CompactSwizzlableVector(), concatSubVectors(), convertLocVTToValVT(), convertShiftLeftToScale(), convertToScalableVector(), createMMXBuildVector(), EltsFromConsecutiveLoads(), emitErrorAndReplaceIntrinsicResults(), emitIntrinsicWithChainErrorMessage(), emitNonHSAIntrinsicError(), emitRemovedIntrinsicError(), EmitTruncSStore(), ExpandBVWithShuffles(), ExpandHorizontalBinOp(), expandV4F32ToV2F64(), ExtendToType(), extractSubVector(), FoldBUILD_VECTOR(), foldCONCAT_VECTORS(), FoldConstantArithmetic(), foldConstantFPMath(), foldExtractSubvectorFromShuffleVector(), FoldSetCC(), getBuildDwordsVector(), getConstVector(), getCopyFromPartsVector(), getDeinterleaveShiftAndTrunc(), getExtLoad(), getExtLoadVP(), getExtStridedLoadVP(), getGeneralPermuteNode(), getHopForBuildVector(), getInvertedVectorForFMA(), getKnownUndefForVectorBinop(), getLoad(), getLoadVP(), getNode(), getShuffleHalfVectors(), getShuffleScalarElt(), getShuffleVectorZeroOrUndef(), getSplatSourceVector(), getStore(), getStridedLoadVP(), getTargetVShiftNode(), getTruncStore(), getTruncStoreVP(), getTruncStridedStoreVP(), llvm::VECustomDAG::getUNDEF(), llvm::SelectionDAGBuilder::getValueImpl(), getVectorShuffle(), getVectorShuffle(), getWideningInterleave(), insert1BitVector(), isAddSubOrSubAdd(), isFNEG(), isHopBuildVector(), isHorizontalBinOpPart(), joinDwords(), lower1BitShuffle(), LowerAsSplatVectorLoad(), lowerAtomicArith(), LowerAVXCONCAT_VECTORS(), LowerAVXExtend(), LowerBITCAST(), LowerBITREVERSE_XOP(), lowerBitreverseShuffle(), lowerBUILD_VECTOR(), LowerBUILD_VECTORvXi1(), lowerBuildVectorOfConstants(), LowerBuildVectorOfFPTrunc(), LowerBuildVectorv4x32(), lowerBuildVectorViaDominantValues(), llvm::SITargetLowering::LowerCall(), llvm::HexagonTargetLowering::LowerCONCAT_VECTORS(), LowerCONCAT_VECTORS(), LowerCONCAT_VECTORSvXi1(), lowerDisjointIndicesShuffle(), LowerEXTEND_VECTOR_INREG(), lowerFCMPIntrinsic(), LowerFLDEXP(), lowerFMAXIMUM_FMINIMUM(), llvm::R600TargetLowering::LowerFormalArguments(), llvm::SITargetLowering::LowerFormalArguments(), lowerFP_TO_INT_SAT(), llvm::AMDGPUTargetLowering::LowerGlobalAddress(), lowerICMPIntrinsic(), lowerINT_TO_FP_vXi64(), LowerINTRINSIC_W_CHAIN(), llvm::MipsTargetLowering::lowerLOAD(), LowerMSCATTER(), LowerMUL(), llvm::RISCVTargetLowering::LowerOperation(), LowerPredicateStore(), lowerReductionSeq(), LowerSCALAR_TO_VECTOR(), lowerScalarInsert(), lowerScalarSplat(), LowerShift(), LowerShiftByScalarImmediate(), lowerShuffleAsBlend(), lowerShuffleAsBlendAndPermute(), lowerShuffleAsBlendOfPSHUFBs(), lowerShuffleAsByteRotateAndPermute(), lowerShuffleAsDecomposedShuffleMerge(), lowerShuffleAsElementInsertion(), lowerShuffleAsLanePermuteAndPermute(), lowerShuffleAsLanePermuteAndShuffle(), lowerShuffleAsPermuteAndUnpack(), lowerShuffleAsRepeatedMaskAndLanePermute(), lowerShuffleAsSpecificZeroOrAnyExtend(), lowerShuffleAsUNPCKAndPermute(), lowerShuffleOfExtractsAsVperm(), lowerShuffleViaVRegSplitting(), lowerShuffleWithPSHUFB(), lowerShuffleWithSSE4A(), lowerShuffleWithUndefHalf(), lowerShuffleWithUNPCK256(), LowerSIGN_EXTEND_Mask(), llvm::SelectionDAGBuilder::LowerStatepoint(), LowerStore(), LowerTruncateVectorStore(), lowerUINT_TO_FP_v2i32(), lowerUINT_TO_FP_vXi32(), llvm::AMDGPUTargetLowering::lowerUnhandledCall(), lowerV16I8Shuffle(), lowerV2F64Shuffle(), lowerV2X128Shuffle(), lowerV4X128Shuffle(), lowerVECTOR_COMPRESS(), llvm::HexagonTargetLowering::LowerVECTOR_SHUFFLE(), LowerVECTOR_SHUFFLE(), lowerVECTOR_SHUFFLE(), LowerVECTOR_SHUFFLE_i1(), lowerVECTOR_SHUFFLE_VREPLVEI(), lowerVECTOR_SHUFFLE_XVREPLVEI(), lowerVECTOR_SHUFFLEAsVSlide1(), lowerVECTOR_SHUFFLEAsVSlidedown(), lowerVectorFTRUNC_FCEIL_FFLOOR_FROUND(), lowerVectorIntrinsicScalars(), lowerVectorStrictFTRUNC_FCEIL_FFLOOR_FROUND(), LowerZERO_EXTEND_Mask(), matchBinaryPermuteShuffle(), matchBinaryShuffle(), matchShuffleAsInsertPS(), matchShuffleWithUNPCK(), matchSplatAsGather(), NormalizeBuildVector(), padEltsToUndef(), partitionShuffleOfConcats(), llvm::SITargetLowering::passSpecialInputs(), PerformARMBUILD_VECTORCombine(), performBuildShuffleExtendCombine(), performBuildVectorCombine(), performConcatVectorsCombine(), llvm::R600TargetLowering::PerformDAGCombine(), llvm::RISCVTargetLowering::PerformDAGCombine(), performDupLane128Combine(), performLDNT1Combine(), performLOADCombine(), PerformMinMaxCombine(), llvm::ARMTargetLowering::PerformMVETruncCombine(), PerformSplittingMVEEXTToWideningLoad(), PerformSplittingToNarrowingStores(), PerformSplittingToWideningLoad(), performSTNT1Combine(), PerformTruncatingStoreCombine(), performUnpackCombine(), performUzpCombine(), PerformVECTOR_REG_CASTCombine(), PerformVECTOR_SHUFFLECombine(), performVECTOR_SHUFFLECombine(), llvm::RISCVDAGToDAGISel::PreprocessISelDAG(), llvm::AArch64TargetLowering::ReconstructShuffle(), ReconstructShuffleWithRuntimeMask(), ReplaceAddWithADDP(), ReplaceCMP_SWAP_64Results(), llvm::LoongArchTargetLowering::ReplaceNodeResults(), llvm::RISCVTargetLowering::ReplaceNodeResults(), llvm::X86TargetLowering::ReplaceNodeResults(), scalarizeBinOpOfSplats(), llvm::TargetLowering::SimplifyDemandedBits(), llvm::TargetLowering::SimplifyDemandedVectorElts(), llvm::X86TargetLowering::SimplifyDemandedVectorEltsForTargetNode(), simplifyDivRem(), simplifyFPBinop(), llvm::TargetLowering::SimplifyMultipleUseDemandedBits(), llvm::X86TargetLowering::SimplifyMultipleUseDemandedBitsForTargetNode(), simplifyShift(), splatPartsI64WithVL(), splitAndLowerShuffle(), llvm::RISCVTargetLowering::splitValueIntoRegisterParts(), llvm::AMDGPUTargetLowering::SplitVectorLoad(), truncateVectorWithPACK(), tryBuildVectorShuffle(), tryCombineMULLWithUZP1(), tryToFoldExtendOfConstant(), tryToReplaceScalarFPConversionWithSVE(), UnrollVectorOp(), UnrollVectorOverflowOp(), vectorizeExtractedCast(), widenSubVector(), widenVec(), WidenVector(), WidenVector(), and widenVectorToPartType().

◆ getUniformityInfo()

const UniformityInfo * llvm::SelectionDAG::getUniformityInfo ( ) const

inline

Definition at line 504 of file SelectionDAG.h.

Referenced by llvm::FunctionLoweringInfo::set().

◆ getVAArg()

SDValue SelectionDAG::getVAArg	(	EVT	VT,
		const SDLoc &	dl,
		SDValue	Chain,
		SDValue	Ptr,
		SDValue	SV,
		unsigned	Align
	)

VAArg produces a result and token chain, and takes a pointer and a source value as input.

Definition at line 10300 of file SelectionDAG.cpp.

References getNode(), getTargetConstant(), getVTList(), Ptr, and llvm::ISD::VAARG.

◆ getValidMaximumShiftAmount() [1/2]

std::optional< uint64_t > SelectionDAG::getValidMaximumShiftAmount	(	SDValue	V,
		const APInt &	DemandedElts,
		unsigned	Depth = `0`
	)		const

If a SHL/SRA/SRL node V has shift amounts that are all less than the element bit-width of the shift node, return the maximum possible value.

Definition at line 3371 of file SelectionDAG.cpp.

References assert(), llvm::Depth, getValidShiftAmountRange(), llvm::ISD::SHL, llvm::ISD::SRA, and llvm::ISD::SRL.

Referenced by canCreateUndefOrPoison(), getValidMaximumShiftAmount(), llvm::TargetLowering::SimplifyDemandedBits(), and llvm::TargetLowering::SimplifyMultipleUseDemandedBits().

◆ getValidMaximumShiftAmount() [2/2]

std::optional< uint64_t > SelectionDAG::getValidMaximumShiftAmount	(	SDValue	V,
		unsigned	Depth = `0`
	)		const

If a SHL/SRA/SRL node V has shift amounts that are all less than the element bit-width of the shift node, return the maximum possible value.

Definition at line 3383 of file SelectionDAG.cpp.

References llvm::Depth, llvm::APInt::getAllOnes(), getValidMaximumShiftAmount(), llvm::EVT::getVectorNumElements(), and llvm::EVT::isFixedLengthVector().

◆ getValidMinimumShiftAmount() [1/2]

std::optional< uint64_t > SelectionDAG::getValidMinimumShiftAmount	(	SDValue	V,
		const APInt &	DemandedElts,
		unsigned	Depth = `0`
	)		const

If a SHL/SRA/SRL node V has shift amounts that are all less than the element bit-width of the shift node, return the minimum possible value.

Definition at line 3350 of file SelectionDAG.cpp.

References assert(), llvm::Depth, getValidShiftAmountRange(), llvm::ISD::SHL, llvm::ISD::SRA, and llvm::ISD::SRL.

Referenced by computeKnownBits(), ComputeNumSignBits(), and getValidMinimumShiftAmount().

◆ getValidMinimumShiftAmount() [2/2]

std::optional< uint64_t > SelectionDAG::getValidMinimumShiftAmount	(	SDValue	V,
		unsigned	Depth = `0`
	)		const

If a SHL/SRA/SRL node V has shift amounts that are all less than the element bit-width of the shift node, return the minimum possible value.

Definition at line 3362 of file SelectionDAG.cpp.

References llvm::Depth, llvm::APInt::getAllOnes(), getValidMinimumShiftAmount(), llvm::EVT::getVectorNumElements(), and llvm::EVT::isFixedLengthVector().

◆ getValidShiftAmount() [1/2]

std::optional< uint64_t > SelectionDAG::getValidShiftAmount	(	SDValue	V,
		const APInt &	DemandedElts,
		unsigned	Depth = `0`
	)		const

If a SHL/SRA/SRL node V has a uniform shift amount that is less than the element bit-width of the shift node, return it.

Definition at line 3328 of file SelectionDAG.cpp.

References assert(), llvm::Depth, getValidShiftAmountRange(), llvm::ISD::SHL, llvm::ISD::SRA, and llvm::ISD::SRL.

Referenced by checkSignTestSetCCCombine(), getFauxShuffleMask(), getValidShiftAmount(), matchTruncateWithPACK(), and llvm::TargetLowering::SimplifyDemandedBits().

◆ getValidShiftAmount() [2/2]

std::optional< uint64_t > SelectionDAG::getValidShiftAmount	(	SDValue	V,
		unsigned	Depth = `0`
	)		const

If a SHL/SRA/SRL node V has a uniform shift amount that is less than the element bit-width of the shift node, return it.

Definition at line 3341 of file SelectionDAG.cpp.

References llvm::Depth, llvm::APInt::getAllOnes(), getValidShiftAmount(), llvm::EVT::getVectorNumElements(), and llvm::EVT::isFixedLengthVector().

◆ getValidShiftAmountRange()

std::optional< ConstantRange > SelectionDAG::getValidShiftAmountRange	(	SDValue	V,
		const APInt &	DemandedElts,
		unsigned	Depth
	)		const

If a SHL/SRA/SRL node V has shift amounts that are all less than the element bit-width of the shift node, return the valid constant range.

Definition at line 3279 of file SelectionDAG.cpp.

References assert(), llvm::BitWidth, computeKnownBits(), llvm::Depth, llvm::ConstantRange::fromKnownBits(), llvm::KnownBits::getMaxValue(), llvm::ISD::SHL, llvm::ISD::SRA, llvm::ISD::SRL, llvm::APInt::uge(), llvm::APInt::ugt(), and llvm::APInt::ult().

Referenced by ComputeNumSignBits(), getValidMaximumShiftAmount(), getValidMinimumShiftAmount(), and getValidShiftAmount().

◆ getValueType()

SDValue SelectionDAG::getValueType ( EVT VT )

Definition at line 2017 of file SelectionDAG.cpp.

References llvm::EVT::getSimpleVT(), llvm::EVT::isExtended(), llvm::EVT::isSimple(), N, and llvm::MVT::SimpleTy.

◆ getVectorIdxConstant()

SDValue SelectionDAG::getVectorIdxConstant	(	uint64_t	Val,
		const SDLoc &	DL,
		bool	isTarget = `false`
	)

Definition at line 1803 of file SelectionDAG.cpp.

References DL, getConstant(), getDataLayout(), and llvm::TargetLoweringBase::getVectorIdxTy().

Referenced by BuildVectorFromScalar(), CollectOpsToWiden(), combineBinOpOfExtractToReduceTree(), combineBinOpToReduce(), combineEXTRACT_SUBVECTOR(), combineExtractFromVectorLoad(), combineI8TruncStore(), combineVectorSizedSetCCEquality(), convertIntLogicToFPLogic(), convertToScalableVector(), CustomNonLegalBITCASTResults(), llvm::TargetLowering::expandVECTOR_COMPRESS(), ExtractVectorElements(), foldExtractSubvectorFromShuffleVector(), GeneratePerfectShuffle(), getCopyFromPartsVector(), getCopyToPartsVector(), getDataClassTest(), getDeinterleaveShiftAndTrunc(), getMemsetStores(), getNode(), getPartialReduceAdd(), getRVVFPReductionOpAndOperands(), getSplatValue(), llvm::RISCVTargetLowering::joinRegisterPartsIntoValue(), lowerBitreverseShuffle(), lowerBUILD_VECTOR(), lowerBuildVectorOfConstants(), lowerBuildVectorViaDominantValues(), lowerLaneOp(), llvm::RISCVTargetLowering::LowerOperation(), lowerReductionSeq(), lowerScalarInsert(), lowerShuffleViaVRegSplitting(), lowerVECTOR_SHUFFLE(), LowerVECTOR_SHUFFLEUsingOneOff(), matchBinOpReduction(), matchSplatAsGather(), narrowExtractedVectorBinOp(), performBuildVectorCombine(), llvm::RISCVTargetLowering::PerformDAGCombine(), performINSERT_VECTOR_ELTCombine(), PerformInsertSubvectorCombine(), performInsertSubvectorCombine(), performLOADCombine(), performSunpkloCombine(), performTruncateCombine(), PerformVQDMULHCombine(), llvm::RISCVTargetLowering::ReplaceNodeResults(), replaceShuffleOfInsert(), scalarizeBinOpOfSplats(), llvm::TargetLowering::scalarizeVectorStore(), llvm::RISCVTargetLowering::splitValueIntoRegisterParts(), llvm::AMDGPUTargetLowering::splitVector(), SplitVector(), llvm::AMDGPUTargetLowering::SplitVectorLoad(), tryToReplaceScalarFPConversionWithSVE(), UnrollVectorOp(), llvm::AMDGPUTargetLowering::WidenOrSplitVectorLoad(), WidenVector(), and widenVectorToPartType().

◆ getVectorShuffle()

SDValue SelectionDAG::getVectorShuffle	(	EVT	VT,
		const SDLoc &	dl,
		SDValue	N1,
		SDValue	N2,
		ArrayRef< int >	Mask
	)

Return an ISD::VECTOR_SHUFFLE node.

The number of elements in VT, which must be a vector type, must match the number of mask elements NumElts. An integer mask element equal to -1 is treated as undefined.

Definition at line 2126 of file SelectionDAG.cpp.

References AddNodeIDNode(), llvm::all_of(), llvm::BumpPtrAllocatorImpl< AllocatorT, SlabSize, SizeThreshold, GrowthDelay >::Allocate(), assert(), llvm::ISD::BITCAST, commuteShuffle(), llvm::copy(), llvm::SDLoc::getDebugLoc(), llvm::SDLoc::getIROrder(), getNode(), llvm::SDNode::getOperand(), getSplatBuildVector(), llvm::BuildVectorSDNode::getSplatValue(), getUNDEF(), llvm::SDValue::getValueType(), llvm::EVT::getVectorNumElements(), getVTList(), llvm::TargetLoweringBase::hasVectorBlend(), llvm::isNullConstant(), llvm::SDValue::isUndef(), N, NewSDValueDbgMsg(), llvm::BitVector::none(), llvm::Offset, llvm::Splat, and llvm::ISD::VECTOR_SHUFFLE.

Referenced by addShuffleForVecExtend(), buildFromShuffleMostly(), llvm::TargetLowering::buildLegalVectorShuffle(), BuildVSLDOI(), combineAddOfPMADDWD(), combineAndShuffleNot(), combineArithReduction(), combineBasicSADPattern(), combineBITREVERSE(), combineBlendOfPermutes(), combineBVOfConsecutiveLoads(), combineConcatVectorOfShuffleAndItsOperands(), combineConcatVectorOps(), combineFP_ROUND(), combineHorizOpWithShuffle(), combineINSERT_SUBVECTOR(), combineMinMaxReduction(), combinePMULDQ(), combineSelect(), combineShuffleOfBitcast(), combineShuffleOfConcatUndef(), combineShuffleOfSplatVal(), combineSIntToFP(), combineToExtendBoolVectorInReg(), combineToHorizontalAddSub(), combineVPDPBUSDPattern(), createVariablePermute(), EltsFromConsecutiveLoads(), ExpandBVWithShuffles(), expandV4F32ToV2F64(), foldExtractSubvectorFromShuffleVector(), foldShuffleOfConcatUndefs(), formSplatFromShuffles(), GeneratePerfectShuffle(), getCommutedVectorShuffle(), getPack(), getShuffleHalfVectors(), getShuffleVectorZeroOrUndef(), getSToVPermuted(), getTargetVShiftNode(), getVectorShuffle(), isFNEG(), lower128BitShuffle(), lower1BitShuffle(), lower256BitShuffle(), lower512BitShuffle(), LowerAsSplatVectorLoad(), LowerBuildVectorv4x32(), LowerConvertLow(), lowerDisjointIndicesShuffle(), LowerEXTEND_VECTOR_INREG(), LowerMUL(), LowerMULH(), LowerReverse_VECTOR_SHUFFLE(), LowerRotate(), LowerShift(), LowerShiftByScalarImmediate(), LowerShiftByScalarVariable(), lowerShuffleAsBlend(), lowerShuffleAsBlendAndPermute(), lowerShuffleAsBroadcast(), lowerShuffleAsByteRotateAndPermute(), lowerShuffleAsDecomposedShuffleMerge(), lowerShuffleAsElementInsertion(), lowerShuffleAsLanePermuteAndPermute(), lowerShuffleAsLanePermuteAndRepeatedMask(), lowerShuffleAsLanePermuteAndShuffle(), lowerShuffleAsLanePermuteAndSHUFP(), lowerShuffleAsPermuteAndUnpack(), lowerShuffleAsRepeatedMaskAndLanePermute(), lowerShuffleAsSpecificZeroOrAnyExtend(), lowerShuffleAsUNPCKAndPermute(), lowerShuffleAsVTRUNCAndUnpack(), lowerShuffleOfExtractsAsVperm(), lowerShuffleViaVRegSplitting(), lowerShuffleWithUNPCK256(), LowerSIGN_EXTEND(), lowerToAddSubOrFMAddSub(), LowerTruncateVecI1(), LowerUINT_TO_FP_i64(), lowerV16I8Shuffle(), lowerV2I64Shuffle(), lowerV4I32Shuffle(), lowerV8F16Shuffle(), lowerVECTOR_SHUFFLE(), LowerVECTOR_SHUFFLE_i1(), LowerVECTOR_SHUFFLEUsingMovs(), lowerVSELECTtoVectorShuffle(), LowerVSETCC(), partitionShuffleOfConcats(), performBuildShuffleExtendCombine(), performConcatVectorsCombine(), llvm::RISCVTargetLowering::PerformDAGCombine(), performExtBinopLoadFold(), performSelectCombine(), PerformTruncatingStoreCombine(), PerformVECTOR_SHUFFLECombine(), performVECTOR_SHUFFLECombine(), PerformVQDMULHCombine(), llvm::AArch64TargetLowering::ReconstructShuffle(), reduceVMULWidth(), ReplaceAddWithADDP(), llvm::X86TargetLowering::ReplaceNodeResults(), llvm::TargetLowering::SimplifyDemandedBits(), splitAndLowerShuffle(), truncateVectorWithPACK(), tryWidenMaskForShuffle(), and vectorizeExtractedCast().

◆ getVPLogicalNOT()

SDValue SelectionDAG::getVPLogicalNOT	(	const SDLoc &	DL,
		SDValue	Val,
		SDValue	Mask,
		SDValue	EVL,
		EVT	VT
	)

Create a vector-predicated logical NOT operation as (VP_XOR Val, BooleanOne, Mask, EVL).

Definition at line 1610 of file SelectionDAG.cpp.

References DL, getBoolConstant(), and getNode().

◆ getVPPtrExtOrTrunc()

SDValue SelectionDAG::getVPPtrExtOrTrunc	(	const SDLoc &	DL,
		EVT	VT,
		SDValue	Op,
		SDValue	Mask,
		SDValue	EVL
	)

Convert a vector-predicated Op, which must be of integer type, to the vector-type integer type VT, by either truncating it or performing either vector-predicated zero or sign extension as appropriate extension for the pointer's semantics.

This function just redirects to getVPZExtOrTrunc right now.

Definition at line 1616 of file SelectionDAG.cpp.

References DL, and getVPZExtOrTrunc().

◆ getVPZeroExtendInReg()

SDValue SelectionDAG::getVPZeroExtendInReg	(	SDValue	Op,
		SDValue	Mask,
		SDValue	EVL,
		const SDLoc &	DL,
		EVT	VT
	)

Return the expression required to zero extend the Op value assuming it was the smaller SrcTy value.

Definition at line 1565 of file SelectionDAG.cpp.

References assert(), llvm::EVT::bitsLE(), DL, getConstant(), llvm::APInt::getLowBitsSet(), getNode(), llvm::EVT::getScalarSizeInBits(), llvm::EVT::getVectorElementCount(), llvm::EVT::isInteger(), and llvm::EVT::isVector().

◆ getVPZExtOrTrunc()

SDValue SelectionDAG::getVPZExtOrTrunc	(	const SDLoc &	DL,
		EVT	VT,
		SDValue	Op,
		SDValue	Mask,
		SDValue	EVL
	)

Convert a vector-predicated Op, which must be an integer vector, to the vector-type VT, by performing either vector-predicated zext or truncating it.

The Op will be returned as-is if Op and VT are vectors containing integer with same width.

Definition at line 1621 of file SelectionDAG.cpp.

References llvm::EVT::bitsGT(), llvm::EVT::bitsLT(), DL, and getNode().

Referenced by getVPPtrExtOrTrunc().

◆ getVRegDbgValue()

SDDbgValue * SelectionDAG::getVRegDbgValue	(	DIVariable *	Var,
		DIExpression *	Expr,
		unsigned	VReg,
		bool	IsIndirect,
		const DebugLoc &	DL,
		unsigned	O
	)

Creates a VReg SDDbgValue node.

VReg.

Definition at line 11356 of file SelectionDAG.cpp.

References assert(), DL, llvm::SDDbgOperand::fromVReg(), and llvm::SDDbgInfo::getAlloc().

Referenced by llvm::SelectionDAGBuilder::handleDebugValue().

◆ getVScale()

SDValue SelectionDAG::getVScale	(	const SDLoc &	DL,
		EVT	VT,
		APInt	MulImm,
		bool	ConstantFold = `true`
	)

Return a node that represents the runtime scaling 'MulImm * RuntimeVL'.

Definition at line 2071 of file SelectionDAG.cpp.

References assert(), llvm::CallingConv::C, DL, F, llvm::APInt::getBitWidth(), getConstant(), llvm::MachineFunction::getFunction(), getMachineFunction(), getNode(), llvm::ConstantRange::getSingleElement(), llvm::EVT::getSizeInBits(), llvm::getVScaleRange(), and llvm::ISD::VSCALE.

Referenced by clampDynamicVectorIndex(), llvm::TargetLowering::expandVectorSplice(), GenerateFixedLengthSVETBL(), getElementCount(), getMemBasePlusOffset(), getNode(), llvm::SelectionDAGBuilder::getValueImpl(), llvm::TargetLowering::getVectorSubVecPointer(), llvm::TargetLowering::IncrementMemoryAddress(), and SplitEVL().

◆ getVTList() [1/5]

SDVTList SelectionDAG::getVTList ( ArrayRef< EVT > VTs )

Definition at line 10754 of file SelectionDAG.cpp.

References llvm::BumpPtrAllocatorImpl< AllocatorT, SlabSize, SizeThreshold, GrowthDelay >::Allocate(), llvm::copy(), and llvm::ArrayRef< T >::size().

◆ getVTList() [2/5]

SDVTList SelectionDAG::getVTList ( EVT VT )

Return an SDVTList that represents the list of values specified.

Definition at line 10687 of file SelectionDAG.cpp.

References llvm::EVT::getSimpleVT(), llvm::EVT::isExtended(), and makeVTList().

◆ getVTList() [3/5]

SDVTList SelectionDAG::getVTList	(	EVT	VT1,
		EVT	VT2
	)

Definition at line 10694 of file SelectionDAG.cpp.

References llvm::BumpPtrAllocatorImpl< AllocatorT, SlabSize, SizeThreshold, GrowthDelay >::Allocate(), and llvm::EVT::getRawBits().

◆ getVTList() [4/5]

SDVTList SelectionDAG::getVTList	(	EVT	VT1,
		EVT	VT2,
		EVT	VT3
	)

Definition at line 10712 of file SelectionDAG.cpp.

References llvm::BumpPtrAllocatorImpl< AllocatorT, SlabSize, SizeThreshold, GrowthDelay >::Allocate(), and llvm::EVT::getRawBits().

◆ getVTList() [5/5]

SDVTList SelectionDAG::getVTList	(	EVT	VT1,
		EVT	VT2,
		EVT	VT3,
		EVT	VT4
	)

Definition at line 10732 of file SelectionDAG.cpp.

References llvm::BumpPtrAllocatorImpl< AllocatorT, SlabSize, SizeThreshold, GrowthDelay >::Allocate(), and llvm::EVT::getRawBits().

◆ getZeroExtendInReg()

SDValue SelectionDAG::getZeroExtendInReg	(	SDValue	Op,
		const SDLoc &	DL,
		EVT	VT
	)

Return the expression required to zero extend the Op value assuming it was the smaller SrcTy value.

Definition at line 1547 of file SelectionDAG.cpp.

References llvm::ISD::AND, assert(), llvm::EVT::bitsLE(), DL, getConstant(), llvm::APInt::getLowBitsSet(), getNode(), llvm::EVT::getScalarSizeInBits(), llvm::EVT::getVectorElementCount(), llvm::EVT::isInteger(), and llvm::EVT::isVector().

Referenced by combineExtSetcc(), combineStore(), getPtrExtendInReg(), lowerFP_TO_INT_SAT(), llvm::MSP430TargetLowering::LowerShifts(), LowerStore(), llvm::AMDGPUTargetLowering::PerformDAGCombine(), performFP_TO_INT_SATCombine(), llvm::ARMTargetLowering::PerformMVEExtCombine(), PromoteMaskArithmetic(), llvm::TargetLowering::SimplifyDemandedBits(), and truncateVectorWithPACKUS().

◆ getZExtOrTrunc()

SDValue SelectionDAG::getZExtOrTrunc	(	SDValue	Op,
		const SDLoc &	DL,
		EVT	VT
	)

Convert Op, which must be of integer type, to the integer type VT, by either zero-extending or truncating it.

Definition at line 1487 of file SelectionDAG.cpp.

References llvm::EVT::bitsGT(), DL, getNode(), llvm::ISD::TRUNCATE, and llvm::ISD::ZERO_EXTEND.

Referenced by combineAnd(), combineAndLoadToBZHI(), combineBitcast(), combineBitcastvxi1(), combineBoolVectorAndTruncateStore(), combineCompareEqual(), combineExtractVectorElt(), combineExtractWithShuffle(), combineOr(), combinePredicateReduction(), combineScalarAndWithMaskSetcc(), combineScalarCTPOPToVCPOP(), combineScalarToVector(), combineSelect(), combineSetCC(), combineSetCCMOVMSK(), combineShiftAnd1ToBitTest(), combineShuffleOfScalars(), combineXor(), createVariablePermute(), createVPDPBUSD(), earlyExpandDIVFIX(), emitMemMemReg(), llvm::AArch64SelectionDAGInfo::EmitStreamingCompatibleMemLibCall(), llvm::SystemZSelectionDAGInfo::EmitTargetCodeForMemchr(), llvm::ARMSelectionDAGInfo::EmitTargetCodeForMemcpy(), llvm::WebAssemblySelectionDAGInfo::EmitTargetCodeForMemcpy(), llvm::ARMSelectionDAGInfo::EmitTargetCodeForMemset(), llvm::WebAssemblySelectionDAGInfo::EmitTargetCodeForMemset(), llvm::SystemZSelectionDAGInfo::EmitTargetCodeForStrnlen(), Expand64BitShift(), expandDivFix(), llvm::TargetLowering::expandDIVREMByConstant(), llvm::TargetLowering::expandFP_TO_SINT(), llvm::TargetLowering::expandVPCTTZElements(), foldAddSubBoolOfMaskedVal(), foldCONCAT_VECTORS(), foldMaskAndShiftToExtract(), foldMaskAndShiftToScale(), foldMaskedShiftToBEXTR(), foldSelectOfCTTZOrCTLZ(), getBitcastedZExtOrTrunc(), getExtOrTrunc(), getFlagsOfCmpZeroFori1(), getPTest(), getPtrExtOrTrunc(), getShiftAmountOperand(), getTargetVShiftNode(), llvm::TargetLowering::getVectorSubVecPointer(), llvm::TargetLowering::IncrementMemoryAddress(), llvm::TargetLowering::LegalizeSetCCCondCode(), lowerBALLOTIntrinsic(), LowerBITCAST(), llvm::HexagonTargetLowering::LowerBITCAST(), lowerBuildVectorToBitOp(), LowerBuildVectorv16i8(), LowerCTPOP(), llvm::NVPTXTargetLowering::LowerDYNAMIC_STACKALLOC(), lowerFCMPIntrinsic(), LowerFGETSIGN(), llvm::AMDGPUTargetLowering::LowerFP_TO_FP16(), LowerFunnelShift(), lowerICMPIntrinsic(), LowerINTRINSIC_W_CHAIN(), llvm::HexagonTargetLowering::LowerLoad(), llvm::SystemZTargetLowering::LowerOperationWrapper(), LowerShift(), llvm::HexagonTargetLowering::LowerVECTOR_SHIFT(), LowervXi8MulWithUNPCK(), lowerX86CmpEqZeroToCtlzSrl(), performBitcastCombine(), llvm::AArch64TargetLowering::PerformDAGCombine(), llvm::HexagonTargetLowering::PerformDAGCombine(), llvm::PPCTargetLowering::PerformDAGCombine(), performExtractVectorEltCombine(), llvm::AMDGPUTargetLowering::performMulCombine(), llvm::AMDGPUTargetLowering::performMulhuCombine(), llvm::AMDGPUTargetLowering::performMulLoHiCombine(), performSETCCCombine(), llvm::AMDGPUTargetLowering::performShlCombine(), llvm::AMDGPUTargetLowering::performTruncateCombine(), PerformUMinFpToSatCombine(), PerformVSetCCToVCTPCombine(), replaceBoolVectorBitcast(), llvm::X86TargetLowering::ReplaceNodeResults(), takeInexpensiveLog2(), tryCombineWhileLo(), llvm::SelectionDAGBuilder::visitBitTestHeader(), llvm::SelectionDAGBuilder::visitJumpTableHeader(), visitORCommutative(), widenAbs(), and widenCtPop().

◆ hasDebugValues()

bool llvm::SelectionDAG::hasDebugValues ( ) const

inline

Return true if there are any SDDbgValue nodes associated with this SelectionDAG.

Definition at line 1867 of file SelectionDAG.h.

References llvm::SDDbgInfo::empty().

Referenced by llvm::ScheduleDAGSDNodes::EmitSchedule().

◆ haveNoCommonBitsSet()

bool SelectionDAG::haveNoCommonBitsSet	(	SDValue	A,
		SDValue	B
	)		const

Return true if A and B have no common bits set.

As an example, this can allow an 'add' to be transformed into an 'or'.

Definition at line 6020 of file SelectionDAG.cpp.

References A, assert(), B, computeKnownBits(), llvm::KnownBits::haveNoCommonBitsSet(), and haveNoCommonBitsSetCommutative().

Referenced by getPointerConstIncrement(), and isADDLike().

◆ InferPtrAlign()

MaybeAlign SelectionDAG::InferPtrAlign ( SDValue Ptr ) const

Infer alignment of a load / store address.

InferPtrAlignment - Infer alignment of a load / store address.

Return std::nullopt if it cannot be inferred.

Definition at line 12889 of file SelectionDAG.cpp.

References llvm::commonAlignment(), llvm::computeKnownBits(), llvm::KnownBits::countMinTrailingZeros(), getDataLayout(), llvm::MachineFunction::getFrameInfo(), getMachineFunction(), llvm::MachineFrameInfo::getObjectAlign(), llvm::DataLayout::getPointerTypeSizeInBits(), llvm::GlobalValue::getType(), isBaseWithConstantOffset(), llvm::TargetLowering::isGAPlusOffset(), and Ptr.

Referenced by getMemcpyLoadsAndStores(), getMemmoveLoadsAndStores(), and LowerAsSplatVectorLoad().

◆ init() [1/2]

void llvm::SelectionDAG::init	(	MachineFunction &	NewMF,
		OptimizationRemarkEmitter &	NewORE,
		MachineFunctionAnalysisManager &	AM,
		const TargetLibraryInfo *	LibraryInfo,
		UniformityInfo *	UA,
		ProfileSummaryInfo *	PSIin,
		BlockFrequencyInfo *	BFIin,
		MachineModuleInfo &	MMI,
		FunctionVarLocs const *	FnVarLocs
	)

inline

Definition at line 473 of file SelectionDAG.h.

References init().

◆ init() [2/2]

void SelectionDAG::init	(	MachineFunction &	NewMF,
		OptimizationRemarkEmitter &	NewORE,
		Pass *	PassPtr,
		const TargetLibraryInfo *	LibraryInfo,
		UniformityInfo *	UA,
		ProfileSummaryInfo *	PSIin,
		BlockFrequencyInfo *	BFIin,
		MachineModuleInfo &	MMI,
		FunctionVarLocs const *	FnVarLocs
	)

Prepare this SelectionDAG to process code in the given MachineFunction.

Definition at line 1353 of file SelectionDAG.cpp.

References llvm::Function::getContext(), llvm::MachineFunction::getFunction(), llvm::TargetSubtargetInfo::getSelectionDAGInfo(), getSubtarget(), and llvm::TargetSubtargetInfo::getTargetLowering().

Referenced by init(), and llvm::SelectionDAGISel::initializeAnalysisResults().

◆ isADDLike()

bool SelectionDAG::isADDLike	(	SDValue	Op,
		bool	NoWrap = `false`
	)		const

Return true if the specified operand is an ISD::OR or ISD::XOR node that can be treated as an ISD::ADD node.

or(x,y) == add(x,y) iff haveNoCommonBitsSet(x,y) xor(x,y) == add(x,y) iff isMinSignedConstant(y) && !NoWrap If NoWrap is true, this will not match ISD::XOR.

Definition at line 5636 of file SelectionDAG.cpp.

References haveNoCommonBitsSet(), llvm::isMinSignedConstant(), llvm::ISD::OR, and llvm::ISD::XOR.

Referenced by isBaseWithConstantOffset().

◆ isBaseWithConstantOffset()

bool SelectionDAG::isBaseWithConstantOffset ( SDValue Op ) const

Return true if the specified operand is an ISD::ADD with a ConstantSDNode on the right-hand side, or if it is an ISD::OR with a ConstantSDNode that is guaranteed to have the same semantics as an ADD.

This handles the equivalence: X|Cst == X+Cst iff X&Cst = 0.

Definition at line 5646 of file SelectionDAG.cpp.

References llvm::ISD::ADD, llvm::DWARFExpression::Operation::getNumOperands(), and isADDLike().

Referenced by getBaseWithConstantOffset(), getBaseWithOffsetUsingSplitOR(), InferPtrAlign(), llvm::SITargetLowering::isReassocProfitable(), LowerAsSplatVectorLoad(), replaceZeroVectorStore(), llvm::RISCVDAGToDAGISel::SelectAddrRegImm(), llvm::RISCVDAGToDAGISel::SelectAddrRegImmLsb00000(), llvm::RISCVDAGToDAGISel::SelectFrameAddrRegImm(), and llvm::LoongArchDAGToDAGISel::SelectInlineAsmMemoryOperand().

◆ isBoolConstant()

std::optional< bool > SelectionDAG::isBoolConstant	(	SDValue	N,
		bool	AllowTruncation = `false`
	)		const

Check if a value \op N is a constant using the target's BooleanContent for its type.

Definition at line 13456 of file SelectionDAG.cpp.

References llvm::TargetLoweringBase::getBooleanContents(), llvm::APInt::isAllOnes(), llvm::isConstOrConstSplat(), llvm::APInt::isOne(), llvm::APInt::isZero(), llvm_unreachable, N, llvm::TargetLoweringBase::UndefinedBooleanContent, llvm::TargetLoweringBase::ZeroOrNegativeOneBooleanContent, and llvm::TargetLoweringBase::ZeroOrOneBooleanContent.

Referenced by extractBooleanFlip(), and simplifySelect().

◆ isConstantFPBuildVectorOrConstantFP()

bool SelectionDAG::isConstantFPBuildVectorOrConstantFP ( SDValue N ) const

Test whether the given value is a constant FP or similar node.

Definition at line 13442 of file SelectionDAG.cpp.

References llvm::ISD::isBuildVectorOfConstantFPSDNodes(), N, and llvm::ISD::SPLAT_VECTOR.

Referenced by canonicalizeCommutativeBinop(), and isConstantValueOfAnyType().

◆ isConstantIntBuildVectorOrConstantInt()

bool SelectionDAG::isConstantIntBuildVectorOrConstantInt	(	SDValue	N,
		bool	AllowOpaques = `true`
	)		const

Test whether the given value is a constant int or similar node.

Definition at line 13418 of file SelectionDAG.cpp.

References llvm::CallingConv::C, llvm::ISD::GlobalAddress, llvm::ISD::isBuildVectorOfConstantSDNodes(), llvm::TargetLowering::isOffsetFoldingLegal(), N, llvm::peekThroughBitcasts(), and llvm::ISD::SPLAT_VECTOR.

Referenced by canonicalizeCommutativeBinop(), combineAndNotOrIntoAndNotAnd(), combinePMULDQ(), combineSetCC(), combineSub(), foldAddSubOfSignBit(), isConstantValueOfAnyType(), performSubAddMULCombine(), llvm::TargetLowering::SimplifySetCC(), and stripConstantMask().

◆ isConstantValueOfAnyType()

bool llvm::SelectionDAG::isConstantValueOfAnyType ( SDValue N ) const

inline

Returns: true if N is any kind of constant or build_vector of constants, int or float. If a vector, it may not necessarily be a splat.

Definition at line 2329 of file SelectionDAG.h.

References isConstantFPBuildVectorOrConstantFP(), isConstantIntBuildVectorOrConstantInt(), and N.

Referenced by llvm::AMDGPUTargetLowering::performSelectCombine(), and simplifySelect().

◆ isEqualTo()

bool SelectionDAG::isEqualTo	(	SDValue	A,
		SDValue	B
	)		const

Test whether two SDValues are known to compare equal.

This is true if they are the same value, or if one is negative zero and the other positive zero.

Definition at line 5954 of file SelectionDAG.cpp.

References A, and B.

Referenced by combineSelect().

◆ isGuaranteedNotToBePoison() [1/2]

bool llvm::SelectionDAG::isGuaranteedNotToBePoison	(	SDValue	Op,
		const APInt &	DemandedElts,
		unsigned	Depth = `0`
	)		const

inline

Return true if this function can prove that Op is never poison.

The DemandedElts argument limits the check to the requested vector elements.

Definition at line 2096 of file SelectionDAG.h.

References llvm::Depth, and isGuaranteedNotToBeUndefOrPoison().

◆ isGuaranteedNotToBePoison() [2/2]

bool llvm::SelectionDAG::isGuaranteedNotToBePoison	(	SDValue	Op,
		unsigned	Depth = `0`
	)		const

inline

Return true if this function can prove that Op is never poison.

Definition at line 2090 of file SelectionDAG.h.

References llvm::Depth, and isGuaranteedNotToBeUndefOrPoison().

◆ isGuaranteedNotToBeUndefOrPoison() [1/2]

bool SelectionDAG::isGuaranteedNotToBeUndefOrPoison	(	SDValue	Op,
		bool	PoisonOnly = `false`,
		unsigned	Depth = `0`
	)		const

Return true if this function can prove that Op is never poison and, if PoisonOnly is false, does not have undef bits.

Definition at line 5409 of file SelectionDAG.cpp.

References llvm::Depth, llvm::ISD::FREEZE, llvm::APInt::getAllOnes(), llvm::EVT::getVectorNumElements(), llvm::EVT::isFixedLengthVector(), isGuaranteedNotToBeUndefOrPoison(), and PoisonOnly.

Referenced by canCreateUndefOrPoison(), computeKnownBits(), getNode(), isGuaranteedNotToBePoison(), isGuaranteedNotToBeUndefOrPoison(), llvm::X86TargetLowering::isGuaranteedNotToBeUndefOrPoisonForTargetNode(), llvm::TargetLowering::SimplifyDemandedVectorElts(), and llvm::TargetLowering::SimplifyMultipleUseDemandedBits().

◆ isGuaranteedNotToBeUndefOrPoison() [2/2]

bool SelectionDAG::isGuaranteedNotToBeUndefOrPoison	(	SDValue	Op,
		const APInt &	DemandedElts,
		bool	PoisonOnly = `false`,
		unsigned	Depth = `0`
	)		const

Return true if this function can prove that Op is never poison and, if PoisonOnly is false, does not have undef bits.

The DemandedElts argument limits the check to the requested vector elements.

Definition at line 5422 of file SelectionDAG.cpp.

References llvm::all_of(), llvm::ISD::BUILD_VECTOR, llvm::ISD::BUILTIN_OP_END, canCreateUndefOrPoison(), llvm::ISD::CONDCODE, llvm::ISD::CopyFromReg, llvm::Depth, llvm::ISD::FrameIndex, llvm::ISD::FREEZE, llvm::APInt::getBitWidth(), llvm::DWARFExpression::Operation::getNumOperands(), llvm::getShuffleDemandedElts(), llvm::ISD::INTRINSIC_VOID, llvm::ISD::INTRINSIC_W_CHAIN, llvm::ISD::INTRINSIC_WO_CHAIN, isGuaranteedNotToBeUndefOrPoison(), llvm::TargetLowering::isGuaranteedNotToBeUndefOrPoisonForTargetNode(), llvm::isIntOrFPConstant(), llvm::APInt::isZero(), MaxRecursionDepth, PoisonOnly, llvm::ISD::SPLAT_VECTOR, llvm::ISD::TargetFrameIndex, llvm::ISD::UNDEF, llvm::ISD::VALUETYPE, and llvm::ISD::VECTOR_SHUFFLE.

◆ isKnownNeverNaN()

bool SelectionDAG::isKnownNeverNaN	(	SDValue	Op,
		bool	SNaN = `false`,
		unsigned	Depth = `0`
	)		const

Test whether the given SDValue (or all elements of it, if it is a vector) is known to never be NaN.

If SNaN is true, returns if Op is known to never be a signaling NaN (it may still be a qNaN).

Definition at line 5651 of file SelectionDAG.cpp.

References llvm::ISD::BUILD_VECTOR, llvm::ISD::BUILTIN_OP_END, llvm::CallingConv::C, llvm::Depth, llvm::ISD::EXTRACT_VECTOR_ELT, llvm::ISD::FABS, llvm::ISD::FACOS, llvm::ISD::FADD, llvm::ISD::FASIN, llvm::ISD::FATAN, llvm::ISD::FATAN2, llvm::ISD::FCANONICALIZE, llvm::ISD::FCEIL, llvm::ISD::FCOPYSIGN, llvm::ISD::FCOS, llvm::ISD::FCOSH, llvm::ISD::FDIV, llvm::ISD::FEXP, llvm::ISD::FEXP10, llvm::ISD::FEXP2, llvm::ISD::FFLOOR, llvm::ISD::FLDEXP, llvm::ISD::FLOG, llvm::ISD::FLOG10, llvm::ISD::FLOG2, llvm::ISD::FMA, llvm::ISD::FMAD, llvm::ISD::FMAXIMUM, llvm::ISD::FMAXIMUMNUM, llvm::ISD::FMAXNUM, llvm::ISD::FMAXNUM_IEEE, llvm::ISD::FMINIMUM, llvm::ISD::FMINIMUMNUM, llvm::ISD::FMINNUM, llvm::ISD::FMINNUM_IEEE, llvm::ISD::FMUL, llvm::ISD::FNEARBYINT, llvm::ISD::FNEG, llvm::ISD::FP_EXTEND, llvm::ISD::FP_ROUND, llvm::ISD::FPOW, llvm::ISD::FPOWI, llvm::ISD::FREM, llvm::ISD::FRINT, llvm::ISD::FROUND, llvm::ISD::FROUNDEVEN, llvm::ISD::FSIN, llvm::ISD::FSINH, llvm::ISD::FSQRT, llvm::ISD::FSUB, llvm::ISD::FTAN, llvm::ISD::FTANH, llvm::ISD::FTRUNC, getTarget(), llvm::ISD::INTRINSIC_VOID, llvm::ISD::INTRINSIC_W_CHAIN, llvm::ISD::INTRINSIC_WO_CHAIN, isKnownNeverNaN(), llvm::TargetLowering::isKnownNeverNaNForTargetNode(), isKnownNeverSNaN(), llvm::ISD::LLRINT, llvm::ISD::LLROUND, llvm::ISD::LRINT, llvm::ISD::LROUND, MaxRecursionDepth, Options, llvm::ISD::SELECT, llvm::ISD::SINT_TO_FP, and llvm::ISD::UINT_TO_FP.

Referenced by arebothOperandsNotNan(), combineFMinNumFMaxNum(), combineSelect(), llvm::TargetLowering::expandFMINIMUM_FMAXIMUM(), llvm::TargetLowering::expandFMINIMUMNUM_FMAXIMUMNUM(), llvm::TargetLowering::expandFMINNUM_FMAXNUM(), isKnownNeverNaN(), llvm::AMDGPUTargetLowering::isKnownNeverNaNForTargetNode(), llvm::SITargetLowering::isKnownNeverNaNForTargetNode(), isKnownNeverSNaN(), isLegalToCombineMinNumMaxNum(), lowerFMAXIMUM_FMINIMUM(), and LowerFMINIMUM_FMAXIMUM().

◆ isKnownNeverSNaN()

bool llvm::SelectionDAG::isKnownNeverSNaN	(	SDValue	Op,
		unsigned	Depth = `0`
	)		const

inline

Returns: true if Op is known to never be a signaling NaN.

Definition at line 2148 of file SelectionDAG.h.

References llvm::Depth, and isKnownNeverNaN().

Referenced by arebothOperandsNotSNan(), llvm::TargetLowering::expandFMINIMUMNUM_FMAXIMUMNUM(), llvm::TargetLowering::expandFMINNUM_FMAXNUM(), llvm::SITargetLowering::isCanonicalized(), and isKnownNeverNaN().

◆ isKnownNeverZero()

bool SelectionDAG::isKnownNeverZero	(	SDValue	Op,
		unsigned	Depth = `0`
	)		const

Test whether the given SDValue is known to contain non-zero value(s).

Definition at line 5793 of file SelectionDAG.cpp.

References llvm::ISD::ABS, llvm::ISD::ADD, assert(), llvm::ISD::BITREVERSE, llvm::ISD::BSWAP, llvm::CallingConv::C, computeKnownBits(), llvm::ConstantRange::contains(), llvm::ISD::CTPOP, llvm::Depth, F, llvm::ConstantRange::getBitWidth(), llvm::KnownBits::getBitWidth(), llvm::MachineFunction::getFunction(), getMachineFunction(), llvm::KnownBits::getMaxValue(), llvm::getVScaleRange(), isKnownNeverZero(), llvm::KnownBits::isNegative(), llvm::KnownBits::isNonZero(), llvm::isNullConstant(), llvm::KnownBits::isStrictlyPositive(), llvm::APInt::isZero(), llvm::APInt::lshr(), llvm::ISD::matchUnaryPredicate(), MaxRecursionDepth, llvm::ISD::MUL, llvm::ConstantRange::multiply(), llvm::KnownBits::ne(), llvm::KnownBits::One, llvm::ISD::OR, llvm::ISD::ROTL, llvm::ISD::ROTR, llvm::ISD::SDIV, llvm::ISD::SELECT, llvm::APInt::shl(), llvm::ISD::SHL, llvm::ISD::SIGN_EXTEND, llvm::ISD::SMAX, llvm::ISD::SMIN, llvm::ISD::SRA, llvm::ISD::SRL, llvm::ISD::SUB, llvm::ISD::UADDSAT, llvm::ISD::UDIV, llvm::APInt::ult(), llvm::ISD::UMAX, llvm::ISD::UMIN, llvm::ISD::VSCALE, llvm::ISD::VSELECT, and llvm::ISD::ZERO_EXTEND.

Referenced by isCMN(), isKnownNeverZero(), isKnownToBeAPowerOfTwo(), isSafeToSpeculativelyExecuteNode(), LowerCTTZ(), LowerShift(), and simplifySetCCWithCTPOP().

◆ isKnownNeverZeroFloat()

bool SelectionDAG::isKnownNeverZeroFloat ( SDValue Op ) const

Test whether the given floating point SDValue is known to never be positive or negative zero.

Definition at line 5784 of file SelectionDAG.cpp.

References assert(), llvm::CallingConv::C, and llvm::ISD::matchUnaryFpPredicate().

Referenced by combineSelect(), llvm::TargetLowering::expandFMINIMUM_FMAXIMUM(), llvm::TargetLowering::expandFMINIMUMNUM_FMAXIMUMNUM(), llvm::TargetLowering::expandFMINNUM_FMAXNUM(), and LowerFMINIMUM_FMAXIMUM().

◆ isKnownToBeAPowerOfTwo()

bool SelectionDAG::isKnownToBeAPowerOfTwo	(	SDValue	Val,
		unsigned	Depth = `0`
	)		const

Test if the given value is known to have exactly one bit set.

This differs from computeKnownBits in that it doesn't necessarily determine which bit is set.

Definition at line 4624 of file SelectionDAG.cpp.

References llvm::all_of(), llvm::BitWidth, llvm::ISD::BUILD_VECTOR, llvm::CallingConv::C, llvm::Depth, llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), llvm::SDNode::getOperand(), llvm::EVT::getScalarSizeInBits(), getTargetLoweringInfo(), llvm::SDValue::getValueType(), llvm::isConstOrConstSplat(), isKnownNeverZero(), isKnownToBeAPowerOfTwo(), llvm::PatternMatch::m_And(), llvm::PatternMatch::m_Deferred(), llvm::PatternMatch::m_Neg(), llvm::PatternMatch::m_Value(), llvm::ISD::matchUnaryPredicate(), MaxRecursionDepth, llvm::SDNode::ops(), llvm::ISD::ROTL, llvm::ISD::ROTR, llvm::SDPatternMatch::sd_match(), llvm::ISD::SELECT, llvm::ISD::SHL, llvm::ISD::SMAX, llvm::ISD::SMIN, llvm::ISD::SPLAT_VECTOR, llvm::ISD::SRL, llvm::ISD::UMAX, llvm::ISD::UMIN, llvm::ISD::VSCALE, llvm::ISD::VSELECT, X, and llvm::ISD::ZERO_EXTEND.

Referenced by isKnownToBeAPowerOfTwo(), and isKnownToBeAPowerOfTwoFP().

◆ isKnownToBeAPowerOfTwoFP()

bool SelectionDAG::isKnownToBeAPowerOfTwoFP	(	SDValue	Val,
		unsigned	Depth = `0`
	)		const

Test if the given fp value is known to be an integer power-of-2, either positive or negative.

Definition at line 4708 of file SelectionDAG.cpp.

References llvm::Depth, llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), llvm::isConstOrConstSplatFP(), isKnownToBeAPowerOfTwo(), llvm::ISD::SINT_TO_FP, and llvm::ISD::UINT_TO_FP.

◆ isSafeToSpeculativelyExecute()

bool llvm::SelectionDAG::isSafeToSpeculativelyExecute ( unsigned Opcode ) const

inline

Some opcodes may create immediate undefined behavior when used with some values (integer division-by-zero for example).

Therefore, these operations are not generally safe to move around or change.

Definition at line 2405 of file SelectionDAG.h.

References llvm::ISD::SDIV, llvm::ISD::SDIVREM, llvm::ISD::SREM, llvm::ISD::UDIV, llvm::ISD::UDIVREM, and llvm::ISD::UREM.

Referenced by isSafeToSpeculativelyExecuteNode(), and performBUILD_VECTORCombine().

◆ isSafeToSpeculativelyExecuteNode()

bool llvm::SelectionDAG::isSafeToSpeculativelyExecuteNode ( const SDNode * N ) const

inline

Check if the provided node is save to speculatively executed given its current arguments.

So, while udiv the opcode is not safe to speculatively execute, a given udiv node may be if the denominator is known nonzero.

Definition at line 2423 of file SelectionDAG.h.

References isKnownNeverZero(), isSafeToSpeculativelyExecute(), N, and llvm::ISD::UDIV.

Referenced by foldSelectWithIdentityConstant().

◆ isSplatValue() [1/2]

bool SelectionDAG::isSplatValue	(	SDValue	V,
		bool	AllowUndefs = `false`
	)		const

Test whether V has a splatted value.

Helper wrapper to main isSplatValue function.

Definition at line 3194 of file SelectionDAG.cpp.

References assert(), llvm::APInt::getAllOnes(), llvm::EVT::getVectorNumElements(), llvm::EVT::isScalableVector(), isSplatValue(), and llvm::EVT::isVector().

◆ isSplatValue() [2/2]

bool SelectionDAG::isSplatValue	(	SDValue	V,
		const APInt &	DemandedElts,
		APInt &	UndefElts,
		unsigned	Depth = `0`
	)		const

Test whether V has a splatted value for all the demanded elements.

isSplatValue - Return true if the vector V has the same value across all DemandedElts.

On success UndefElts will indicate the elements that have UNDEF values instead of the splat value, this is only guaranteed to be correct for DemandedElts.

NOTE: The function will return true for a demanded splat of UNDEF values.

For scalable vectors, we don't know the number of lanes at compile time. Instead, we use a 1 bit APInt to represent a conservative value for all lanes; that is, that one bit value is implicitly splatted across all lanes.

Definition at line 3008 of file SelectionDAG.cpp.

References llvm::ISD::ABS, llvm::ISD::ADD, llvm::ISD::AND, llvm::ISD::ANY_EXTEND_VECTOR_INREG, assert(), llvm::ISD::BITCAST, llvm::BitWidth, llvm::ISD::BUILD_VECTOR, llvm::ISD::BUILTIN_OP_END, llvm::Depth, llvm::ISD::EXTRACT_SUBVECTOR, llvm::APInt::extractBits(), llvm::APInt::getAllOnes(), llvm::APInt::getBitWidth(), llvm::APInt::getOneBitSet(), llvm::EVT::getScalarSizeInBits(), llvm::APInt::getSplat(), llvm::EVT::getVectorNumElements(), llvm::APInt::getZero(), I, Idx, llvm::ISD::INTRINSIC_VOID, llvm::ISD::INTRINSIC_W_CHAIN, llvm::ISD::INTRINSIC_WO_CHAIN, llvm::EVT::isInteger(), llvm::EVT::isScalableVector(), isSplatValue(), llvm::TargetLowering::isSplatValueForTargetNode(), llvm::EVT::isVector(), llvm::APInt::isZero(), isZero(), LHS, MaxRecursionDepth, llvm::ISD::OR, RHS, llvm::APIntOps::ScaleBitMask(), llvm::APInt::setBit(), llvm::APInt::shl(), llvm::ISD::SIGN_EXTEND, llvm::ISD::SIGN_EXTEND_VECTOR_INREG, llvm::ISD::SPLAT_VECTOR, llvm::ISD::SUB, llvm::APInt::trunc(), llvm::ISD::TRUNCATE, llvm::ISD::VECTOR_SHUFFLE, llvm::ISD::XOR, llvm::ISD::ZERO_EXTEND, llvm::ISD::ZERO_EXTEND_VECTOR_INREG, and llvm::APInt::zext().

Referenced by canonicalizeShuffleWithOp(), combineEXTRACT_SUBVECTOR(), combineShuffleOfSplatVal(), combineX86ShuffleChain(), getSplatSourceVector(), isOnlyUsedByStores(), isSplatValue(), LowerRotate(), lowerVECTOR_SHUFFLE(), llvm::X86TargetLowering::shouldProduceAndByConstByHoistingConstFromShiftsLHSOfAnd(), llvm::X86TargetLowering::SimplifyDemandedBitsForTargetNode(), llvm::X86TargetLowering::SimplifyDemandedVectorEltsForTargetNode(), splitVector(), and tryCombineMULLWithUZP1().

◆ isUndef()

bool SelectionDAG::isUndef	(	unsigned	Opcode,
		ArrayRef< SDValue >	Ops
	)

Return true if the result of this operation is always undefined.

Definition at line 6626 of file SelectionDAG.cpp.

References llvm::any_of(), assert(), llvm::SDValue::getNode(), llvm::ISD::isBuildVectorOfConstantSDNodes(), llvm::isNullConstant(), llvm::SDValue::isUndef(), llvm::SDNode::op_values(), llvm::ISD::SDIV, llvm::ArrayRef< T >::size(), llvm::ISD::SREM, llvm::ISD::UDIV, and llvm::ISD::UREM.

Referenced by FoldConstantArithmetic(), and simplifyDivRem().

◆ Legalize()

void SelectionDAG::Legalize ( )

This transforms the SelectionDAG into a SelectionDAG that is compatible with the target instruction selector, as indicated by the TargetLowering object.

This is the entry point for the file.

Note that this is an involved process that may invalidate pointers into the graph.

Definition at line 5813 of file LegalizeDAG.cpp.

References allnodes_begin(), allnodes_end(), AssignTopologicalOrder(), DeleteNode(), llvm::SmallPtrSetImpl< PtrType >::erase(), llvm::SDValue::getNode(), getNode(), getRoot(), llvm::SmallPtrSetImpl< PtrType >::insert(), N, and RemoveDeadNodes().

◆ LegalizeOp()

bool SelectionDAG::LegalizeOp	(	SDNode *	N,
		SmallSetVector< SDNode *, 16 > &	UpdatedNodes
	)

Transforms a SelectionDAG node and any operands to it into a node that is compatible with the target instruction selector, as indicated by the TargetLowering object.

Returns: true if N is a valid, legal node after calling this.

This essentially runs a single recursive walk of the Legalize process over the given node (and its operands). This can be used to incrementally legalize the DAG. All of the nodes which are directly replaced, potentially including N, are added to the output parameter UpdatedNodes so that the delta to the DAG can be understood by the caller.

When this returns false, N has been legalized in a way that make the pointer passed in no longer valid. It may have even been deleted from the DAG, and so it shouldn't be used further. When this returns true, the N passed in is a legal node, and can be immediately processed as such. This may still have done some work on the DAG, and will still populate UpdatedNodes with any new nodes replacing those originally in the DAG.

Definition at line 5862 of file LegalizeDAG.cpp.

References llvm::SmallPtrSetImpl< PtrType >::count(), llvm::SmallPtrSetImpl< PtrType >::insert(), and N.

◆ LegalizeTypes()

bool SelectionDAG::LegalizeTypes ( )

This transforms the SelectionDAG into a SelectionDAG that only uses types natively supported by the target.

Returns "true" if it made any changes.

Note that this is an involved process that may invalidate pointers into the graph.

Definition at line 1055 of file LegalizeTypes.cpp.

References llvm::DAGTypeLegalizer::run().

◆ LegalizeVectors()

bool SelectionDAG::LegalizeVectors ( )

This transforms the SelectionDAG into a SelectionDAG that only uses vector math operations supported by the target.

This is necessary as a separate step from Legalize because unrolling a vector operation can introduce illegal types, which requires running LegalizeTypes again.

This returns true if it made any changes; in that case, LegalizeTypes is called again before Legalize.

Note that this is an involved process that may invalidate pointers into the graph.

Definition at line 2259 of file LegalizeVectorOps.cpp.

◆ makeEquivalentMemoryOrdering() [1/2]

SDValue SelectionDAG::makeEquivalentMemoryOrdering	(	LoadSDNode *	OldLoad,
		SDValue	NewMemOp
	)

If an existing load has uses of its chain, create a token factor node with that chain and the new memory node's chain and update users of the old chain to the token factor.

This ensures that the new memory node will have the same relative memory dependency position as the old load. Returns the new merged load chain.

Definition at line 12149 of file SelectionDAG.cpp.

References assert(), llvm::SDValue::getNode(), llvm::SDValue::getValue(), and makeEquivalentMemoryOrdering().

◆ makeEquivalentMemoryOrdering() [2/2]

SDValue SelectionDAG::makeEquivalentMemoryOrdering	(	SDValue	OldChain,
		SDValue	NewMemOpChain
	)

If an existing load has uses of its chain, create a token factor node with that chain and the new memory node's chain and update users of the old chain to the token factor.

This ensures that the new memory node will have the same relative memory dependency position as the old load. Returns the new merged load chain.

Definition at line 12131 of file SelectionDAG.cpp.

References assert(), getNode(), llvm::SDValue::getValueType(), ReplaceAllUsesOfValueWith(), llvm::ISD::TokenFactor, UpdateNodeOperands(), and llvm::SDValue::use_empty().

Referenced by combineBVOfConsecutiveLoads(), combineExtractFromVectorLoad(), combineStore(), EltsFromConsecutiveLoads(), getBROADCAST_LOAD(), lowerShuffleAsBroadcast(), lowerVECTOR_SHUFFLE(), makeEquivalentMemoryOrdering(), narrowExtractedVectorLoad(), performCONCAT_VECTORSCombine(), performExtBinopLoadFold(), and llvm::X86TargetLowering::SimplifyDemandedVectorEltsForTargetNode().

◆ makeStateFunctionCall()

SDValue SelectionDAG::makeStateFunctionCall	(	unsigned	LibFunc,
		SDValue	Ptr,
		SDValue	InChain,
		const SDLoc &	DLoc
	)

Helper used to make a call to a library function that has one argument of pointer type.

Such functions include 'fegetmode', 'fesetenv' and some others, which are used to get or set floating-point state. They have one argument of pointer type, which points to the memory region containing bits of the floating-point state. The value returned by such function is ignored in the created call.

Parameters

LibFunc	Reference to library function (value of RTLIB::Libcall).
Ptr	Pointer used to save/load state.
InChain	Ingoing token chain.

Returns: Outgoing chain token.

Definition at line 13589 of file SelectionDAG.cpp.

References assert(), getContext(), getDataLayout(), getExternalSymbol(), llvm::TargetLoweringBase::getLibcallCallingConv(), llvm::TargetLoweringBase::getLibcallName(), llvm::TargetLoweringBase::getPointerTy(), llvm::SDValue::getValueType(), llvm::Type::getVoidTy(), llvm::TargetLowering::LowerCallTo(), Ptr, llvm::TargetLowering::CallLoweringInfo::setChain(), llvm::TargetLowering::CallLoweringInfo::setDebugLoc(), and llvm::TargetLowering::CallLoweringInfo::setLibCallee().

◆ MaskedValueIsAllOnes()

bool SelectionDAG::MaskedValueIsAllOnes	(	SDValue	Op,
		const APInt &	Mask,
		unsigned	Depth = `0`
	)		const

Return true if '(Op & Mask) == Mask'.

MaskedValueIsAllOnes - Return true if '(Op & Mask) == Mask'.

Op and Mask are known to be the same type.

Definition at line 2978 of file SelectionDAG.cpp.

References computeKnownBits(), and llvm::Depth.

◆ MaskedValueIsZero() [1/2]

bool SelectionDAG::MaskedValueIsZero	(	SDValue	V,
		const APInt &	Mask,
		const APInt &	DemandedElts,
		unsigned	Depth = `0`
	)		const

Return true if 'Op & Mask' is known to be zero in DemandedElts.

MaskedValueIsZero - Return true if 'V & Mask' is known to be zero in DemandedElts.

We use this predicate to simplify operations downstream. Op and Mask are known to be the same type.

We use this predicate to simplify operations downstream. Mask is known to be zero for bits that V cannot have.

Definition at line 2964 of file SelectionDAG.cpp.

References computeKnownBits(), and llvm::Depth.

◆ MaskedValueIsZero() [2/2]

bool SelectionDAG::MaskedValueIsZero	(	SDValue	V,
		const APInt &	Mask,
		unsigned	Depth = `0`
	)		const

Return true if 'Op & Mask' is known to be zero.

MaskedValueIsZero - Return true if 'V & Mask' is known to be zero.

We use this predicate to simplify operations downstream. Op and Mask are known to be the same type.

We use this predicate to simplify operations downstream. Mask is known to be zero for bits that V cannot have.

Definition at line 2956 of file SelectionDAG.cpp.

References computeKnownBits(), and llvm::Depth.

Referenced by llvm::SelectionDAGISel::CheckAndMask(), combine_CC(), combineAddOfBooleanXor(), combineAddOfPMADDWD(), combineAnd(), combineCMP(), combineDeMorganOfBoolean(), combineMulToPMADDWD(), combineMulToPMULDQ(), combineSetCC(), combineSubShiftToOrcB(), combineTargetShuffle(), combineVectorPack(), combineZext(), EmitCmp(), llvm::XCoreSelectionDAGInfo::EmitTargetCodeForMemcpy(), llvm::TargetLowering::expandMUL_LOHI(), foldMaskAndShiftToScale(), getBT(), getFauxShuffleMask(), getNode(), getTruncatedUSUBSAT(), isTruncWithZeroHighBitsInput(), LowerPARITY(), llvm::AMDGPUTargetLowering::LowerUDIVREM64(), matchLSNode(), matchShuffleWithPACK(), llvm::PPCTargetLowering::PerformDAGCombine(), llvm::RISCVTargetLowering::PerformDAGCombine(), PerformORCombineToBFI(), performSETCCCombine(), llvm::RISCVTargetLowering::ReplaceNodeResults(), selectUmullSmull(), llvm::RISCVDAGToDAGISel::selectZExtBits(), llvm::LoongArchDAGToDAGISel::selectZExti32(), ShrinkLoadReplaceStoreWithStore(), SignBitIsZero(), llvm::TargetLowering::SimplifyDemandedBits(), llvm::TargetLowering::SimplifySetCC(), and tryDemorganOfBooleanCondition().

◆ MaskedVectorIsZero()

bool SelectionDAG::MaskedVectorIsZero	(	SDValue	V,
		const APInt &	DemandedElts,
		unsigned	Depth = `0`
	)		const

Return true if 'Op' is known to be zero in DemandedElts.

MaskedVectorIsZero - Return true if 'Op' is known to be zero in DemandedElts.

We use this predicate to simplify operations downstream.

Definition at line 2972 of file SelectionDAG.cpp.

References computeKnownBits(), llvm::Depth, and llvm::KnownBits::isZero().

Referenced by combineOr(), computeVectorKnownZeroElements(), isTargetShuffleEquivalent(), matchBinaryShuffle(), and llvm::X86TargetLowering::SimplifyDemandedVectorEltsForTargetNode().

◆ matchBinOpReduction()

SDValue SelectionDAG::matchBinOpReduction	(	SDNode *	Extract,
		ISD::NodeType &	BinOp,
		ArrayRef< ISD::NodeType >	CandidateBinOps,
		bool	AllowPartials = `false`
	)

Match a binop + shuffle pyramid that represents a horizontal reduction over the elements of a vector starting from the EXTRACT_VECTOR_ELT node /p Extract.

The reduction must use one of the opcodes listed in /p CandidateBinOps and on success /p BinOp will contain the matching opcode. Returns the vector that is being reduced on, or SDValue() if a reduction was not matched. If AllowPartials is set then in the case of a reduction pattern that only matches the first few stages, the extracted subvector of the start of the reduction is returned.

Definition at line 12583 of file SelectionDAG.cpp.

References llvm::ISD::EXTRACT_SUBVECTOR, llvm::ISD::EXTRACT_VECTOR_ELT, llvm::ISD::FADD, llvm::SDValue::getConstantOperandAPInt(), getContext(), llvm::ShuffleVectorSDNode::getMaskElt(), getNode(), llvm::SDValue::getOpcode(), llvm::SDNode::getOpcode(), llvm::SDValue::getOperand(), llvm::SDNode::getOperand(), llvm::EVT::getScalarType(), getVectorIdxConstant(), llvm::EVT::getVectorVT(), llvm::TargetLoweringBase::isExtractSubvectorCheap(), llvm::isNullConstant(), llvm_unreachable, llvm::Log2_32(), and llvm::none_of().

Referenced by combineArithReduction(), combineBasicSADPattern(), combineMinMaxReduction(), combinePredicateReduction(), combineVPDPBUSDPattern(), and MatchVectorAllEqualTest().

◆ MorphNodeTo()

SDNode * SelectionDAG::MorphNodeTo	(	SDNode *	N,
		unsigned	Opc,
		SDVTList	VTs,
		ArrayRef< SDValue >	Ops
	)

This mutates the specified node to have the specified return type, opcode, and operands.

MorphNodeTo - This mutates the specified node to have the specified return type, opcode, and operands.

Note that MorphNodeTo returns the resultant node. If there is already a node of the specified opcode and operands, it returns that node instead of the current one. Note that the SDLoc need not be the same.

Using MorphNodeTo is faster than creating a new node and swapping it in with ReplaceAllUsesWith both because it often avoids allocating a new node, and because it doesn't require CSE recalculation for any of the node's users.

However, note that MorphNodeTo recursively deletes dead nodes from the DAG. As a consequence it isn't appropriate to use from within the DAG combiner or the legalizer which maintain worklists that would need to be updated when deleting things.

Definition at line 11027 of file SelectionDAG.cpp.

References AddNodeIDNode(), llvm::SmallPtrSetImplBase::empty(), I, llvm::SmallPtrSetImpl< PtrType >::insert(), N, llvm::SDVTList::NumVTs, llvm::SmallVectorTemplateBase< T, bool >::push_back(), RemoveDeadNodes(), llvm::Use::set(), and llvm::SDVTList::VTs.

Referenced by CloneNodeWithValues(), llvm::NVPTXTargetLowering::LowerCall(), mutateStrictFPToFP(), llvm::AMDGPUDAGToDAGISel::Select(), SelectNodeTo(), and llvm::HexagonDAGToDAGISel::SelectTypecast().

◆ mutateStrictFPToFP()

SDNode * SelectionDAG::mutateStrictFPToFP ( SDNode * Node )

Mutate the specified strict FP node to its non-strict equivalent, unlinking the node from its chain and dropping the metadata arguments.

The node must be a strict FP node.

Definition at line 11080 of file SelectionDAG.cpp.

References assert(), getVTList(), llvm_unreachable, MorphNodeTo(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), RemoveDeadNode(), ReplaceAllUsesOfValueWith(), ReplaceAllUsesWith(), and llvm::SDNode::setNodeId().

◆ operator=()

SelectionDAG & llvm::SelectionDAG::operator= ( const SelectionDAG & )

delete

◆ RemoveDeadNode()

void SelectionDAG::RemoveDeadNode ( SDNode * N )

Remove the specified node from the system.

If any of its operands then becomes dead, remove them as well. Inform UpdateListener for each node deleted.

Definition at line 1063 of file SelectionDAG.cpp.

References getRoot(), N, and RemoveDeadNodes().

Referenced by foldADDIForFasterLocalAccesses(), foldMaskAndShiftToExtract(), foldMaskAndShiftToScale(), foldMaskedShiftToBEXTR(), foldMaskedShiftToScaledMask(), llvm::TargetLowering::getCheaperOrNeutralNegatedExpression(), llvm::TargetLowering::getNegatedExpression(), llvm::SITargetLowering::legalizeTargetIndependentNode(), llvm::NVPTXTargetLowering::LowerCall(), mutateStrictFPToFP(), llvm::SelectionDAGISel::ReplaceNode(), llvm::RISCVDAGToDAGISel::Select(), llvm::HexagonDAGToDAGISel::SelectBrevLdIntrinsic(), llvm::SelectionDAGISel::SelectCodeCommon(), llvm::HexagonDAGToDAGISel::SelectHVXDualOutput(), llvm::HexagonDAGToDAGISel::SelectIndexedStore(), llvm::HexagonDAGToDAGISel::SelectIntrinsicWChain(), llvm::HexagonDAGToDAGISel::SelectNewCircIntrinsic(), SelectNodeTo(), llvm::HvxSelector::selectVAlign(), llvm::RISCVDAGToDAGISel::selectVLSEG(), llvm::RISCVDAGToDAGISel::selectVLSEGFF(), llvm::RISCVDAGToDAGISel::selectVLXSEG(), and llvm::HexagonDAGToDAGISel::tryLoadOfLoadIntrinsic().

◆ RemoveDeadNodes() [1/2]

void SelectionDAG::RemoveDeadNodes ( )

This method deletes all unreachable nodes in the SelectionDAG.

RemoveDeadNodes - This method deletes all unreachable nodes in the SelectionDAG.

Definition at line 1009 of file SelectionDAG.cpp.

References allnodes(), getRoot(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), RemoveDeadNodes(), and setRoot().

Referenced by Legalize(), MorphNodeTo(), llvm::AMDGPUDAGToDAGISel::PostprocessISelDAG(), llvm::RISCVDAGToDAGISel::PostprocessISelDAG(), llvm::AMDGPUDAGToDAGISel::PreprocessISelDAG(), llvm::RISCVDAGToDAGISel::PreprocessISelDAG(), RemoveDeadNode(), RemoveDeadNodes(), and llvm::DAGTypeLegalizer::run().

◆ RemoveDeadNodes() [2/2]

void SelectionDAG::RemoveDeadNodes ( SmallVectorImpl< SDNode * > & DeadNodes )

This method deletes the unreachable nodes in the given list, and any nodes that become unreachable as a result.

RemoveDeadNodes - This method deletes the unreachable nodes in the given list, and any nodes that become unreachable as a result.

Definition at line 1029 of file SelectionDAG.cpp.

References llvm::ISD::DELETED_NODE, llvm::SmallVectorBase< Size_T >::empty(), I, N, llvm::SelectionDAG::DAGUpdateListener::Next, llvm::SmallVectorImpl< T >::pop_back_val(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::Use::set(), and llvm::SDNode::use_empty().

◆ ReplaceAllUsesOfValuesWith()

void SelectionDAG::ReplaceAllUsesOfValuesWith	(	const SDValue *	From,
		const SDValue *	To,
		unsigned	Num
	)

Like ReplaceAllUsesOfValueWith, but for multiple values at once.

ReplaceAllUsesOfValuesWith - Replace any uses of From with To, leaving uses of other values produced by From.getNode() alone.

This correctly handles the case where there is an overlap between the From values and the To values.

The same value may appear in both the From and To list. The Deleted vector is handled the same way as for ReplaceAllUsesWith.

Definition at line 11968 of file SelectionDAG.cpp.

References copyExtraInfo(), From, llvm::Use::getUser(), ReplaceAllUsesOfValueWith(), llvm::Use::set(), llvm::sort(), transferDbgValues(), llvm::SDNode::uses(), and Uses.

Referenced by llvm::SelectionDAGISel::ReplaceUses().

◆ ReplaceAllUsesOfValueWith()

void SelectionDAG::ReplaceAllUsesOfValueWith	(	SDValue	From,
		SDValue	To
	)

Replace any uses of From with To, leaving uses of other values produced by From.getNode() alone.

ReplaceAllUsesOfValueWith - Replace any uses of From with To, leaving uses of other values produced by From.getNode() alone.

The Deleted vector is handled the same way as for ReplaceAllUsesWith.

Definition at line 11793 of file SelectionDAG.cpp.

References copyExtraInfo(), From, llvm::SDValue::getNode(), getRoot(), llvm::SDUse::getUser(), llvm::SDNode::isDivergent(), ReplaceAllUsesWith(), llvm::Use::set(), setRoot(), transferDbgValues(), and updateDivergence().

Referenced by AddCombineTo64bitMLAL(), AddCombineTo64BitSMLAL16(), AddCombineTo64bitUMAAL(), adjustSubwordCmp(), combineBitcast(), combineCarryDiamond(), combineConcatVectorOps(), combineCVTP2I_CVTTP2I(), combineCVTPH2PS(), combineEXTEND_VECTOR_INREG(), combineExtractWithShuffle(), combineINSERT_SUBVECTOR(), combineMOVDQ2Q(), combineOp_VLToVWOp_VL(), combineSelect(), combineSetCCAtomicArith(), combineSIntToFP(), combineTargetShuffle(), combineVSelectToBLENDV(), combineX86INT_TO_FP(), emitIntrinsicWithCCAndChain(), EmitTest(), expandMultipleResultFPLibCall(), lowerBuildVectorAsBroadcast(), llvm::HexagonTargetLowering::LowerDYNAMIC_STACKALLOC(), makeEquivalentMemoryOrdering(), llvm::AMDGPUDAGToDAGISel::matchLoadD16FromBuildVector(), mutateStrictFPToFP(), performConcatVectorsCombine(), llvm::PPCTargetLowering::PerformDAGCombine(), llvm::RISCVTargetLowering::PerformDAGCombine(), performDivRemCombine(), performExtractVectorEltCombine(), PerformHWLoopCombine(), performIntToFpCombine(), PerformORCombineToSMULWBT(), PerformSplittingMVEEXTToWideningLoad(), PerformSplittingToWideningLoad(), llvm::AMDGPUTargetLowering::performStoreCombine(), performUnpackCombine(), PerformVDUPCombine(), PerformVMOVhrCombine(), PerformVMOVrhCombine(), PerformVMOVRRDCombine(), llvm::RISCVDAGToDAGISel::PreprocessISelDAG(), reduceVSXSwap(), ReplaceAllUsesOfValuesWith(), llvm::SelectionDAGISel::ReplaceUses(), SkipExtensionForVMULL(), tryToFoldExtOfAtomicLoad(), tryToFoldExtOfExtload(), tryToFoldExtOfLoad(), and tryToFoldExtOfMaskedLoad().

◆ ReplaceAllUsesWith() [1/3]

void SelectionDAG::ReplaceAllUsesWith	(	SDNode *	From,
		const SDValue *	To
	)

ReplaceAllUsesWith - Modify anything using 'From' to use 'To' instead.

This can cause recursive merging of nodes in the DAG.

This version can replace From with any result values. To must match the number and types of values returned by From.

Definition at line 11743 of file SelectionDAG.cpp.

References copyExtraInfo(), From, getNode(), getRoot(), llvm::SDUse::getUser(), llvm::SDNode::isDivergent(), ReplaceAllUsesWith(), llvm::Use::set(), setRoot(), transferDbgValues(), and updateDivergence().

◆ ReplaceAllUsesWith() [2/3]

void SelectionDAG::ReplaceAllUsesWith	(	SDNode *	From,
		SDNode *	To
	)

ReplaceAllUsesWith - Modify anything using 'From' to use 'To' instead.

This can cause recursive merging of nodes in the DAG.

This version assumes that for each value of From, there is a corresponding value in To in the same position with the same type.

Definition at line 11685 of file SelectionDAG.cpp.

References assert(), copyExtraInfo(), From, getNode(), getRoot(), llvm::SDUse::getUser(), llvm::SDNode::getValueType(), llvm::SDNode::isDivergent(), setRoot(), transferDbgValues(), and updateDivergence().

◆ ReplaceAllUsesWith() [3/3]

void SelectionDAG::ReplaceAllUsesWith	(	SDValue	FromN,
		SDValue	To
	)

Modify anything using 'From' to use 'To' instead.

ReplaceAllUsesWith - Modify anything using 'From' to use 'To' instead.

This can cause recursive merging of nodes in the DAG. Use the first version if 'From' is known to have a single result, use the second if you have two nodes with identical results (or if 'To' has a superset of the results of 'From'), use the third otherwise.

These methods all take an optional UpdateListener, which (if not null) is informed about nodes that are deleted and modified due to recursive changes in the dag.

These functions only replace all existing uses. It's possible that as these replacements are being performed, CSE may cause the From node to be given new uses. These new uses of From are left in place, and not automatically transferred to To.

This can cause recursive merging of nodes in the DAG.

This version assumes From has a single result value.

Definition at line 11632 of file SelectionDAG.cpp.

References assert(), copyExtraInfo(), From, llvm::SDValue::getNode(), llvm::SDValue::getResNo(), getRoot(), llvm::SDUse::getUser(), llvm::SDNode::isDivergent(), llvm::Use::set(), setRoot(), transferDbgValues(), and updateDivergence().

Referenced by emitComparison(), foldMaskAndShiftToExtract(), foldMaskAndShiftToScale(), foldMaskedShiftToBEXTR(), foldMaskedShiftToScaledMask(), llvm::SITargetLowering::legalizeTargetIndependentNode(), llvm::SelectionDAGBuilder::LowerAsSTATEPOINT(), llvm::NVPTXTargetLowering::LowerCall(), lowerShufflePairAsUNPCKAndPermute(), mutateStrictFPToFP(), performCONDCombine(), llvm::AMDGPUTargetLowering::performFNegCombine(), PerformHWLoopCombine(), PerformLongShiftCombine(), performSETCCCombine(), ReplaceAllUsesOfValueWith(), ReplaceAllUsesWith(), llvm::SelectionDAGISel::ReplaceNode(), llvm::SelectionDAGISel::ReplaceUses(), SelectNodeTo(), tryCombineMULLWithUZP1(), and tryMemPairCombine().

◆ RepositionNode()

void llvm::SelectionDAG::RepositionNode	(	allnodes_iterator	Position,
		SDNode *	N
	)

inline

Move node N in the AllNodes list to be immediately before the given iterator Position.

This may be used to update the topological ordering when the list of nodes is modified.

Definition at line 1848 of file SelectionDAG.h.

References llvm::iplist_impl< IntrusiveListT, TraitsT >::insert(), N, and llvm::iplist_impl< IntrusiveListT, TraitsT >::remove().

Referenced by insertDAGNode().

◆ salvageDebugInfo()

void SelectionDAG::salvageDebugInfo ( SDNode & N )

To be invoked on an SDNode that is slated to be erased.

This function mirrors llvm::salvageDebugInfo.

Definition at line 11461 of file SelectionDAG.cpp.

References llvm::ISD::ADD, AddDbgValue(), llvm::any_of(), llvm::DIExpression::appendOffset(), llvm::DIExpression::appendOpsToArg(), assert(), llvm::DIExpression::convertToVariadicExpression(), llvm::dbgs(), llvm::dwarf::DW_OP_LLVM_arg, llvm::SDDbgOperand::fromFrameIdx(), llvm::SDDbgOperand::fromNode(), getDbgValueList(), GetDbgValues(), llvm::DIExpression::getExtOps(), llvm::SDValue::getNode(), llvm::SDValue::getResNo(), llvm::SDValue::getValueSizeInBits(), LLVM_DEBUG, N, llvm::Offset, llvm::SmallVectorTemplateBase< T, bool >::push_back(), RHS, llvm::SDDbgOperand::SDNODE, and llvm::ISD::TRUNCATE.

Referenced by llvm::SelectionDAGISel::SelectCodeCommon().

◆ SelectNodeTo() [1/10]

SDNode * SelectionDAG::SelectNodeTo	(	SDNode *	N,
		unsigned	MachineOpc,
		EVT	VT
	)

These are used for target selectors to mutate the specified node to have the specified return type, Target opcode, and operands.

SelectNodeTo - These are wrappers around MorphNodeTo that accept a machine opcode.

Note that target opcodes are stored as ~TargetOpcode in the node opcode field. The resultant node is returned.

Definition at line 10920 of file SelectionDAG.cpp.

References getVTList(), N, and SelectNodeTo().

Referenced by llvm::AMDGPUDAGToDAGISel::SelectBuildVector(), SelectNodeTo(), tryBitfieldInsertOpFromOr(), tryBitfieldInsertOpFromOrAndImm(), and tryOrrWithShift().

◆ SelectNodeTo() [2/10]

SDNode * SelectionDAG::SelectNodeTo	(	SDNode *	N,
		unsigned	MachineOpc,
		EVT	VT,
		ArrayRef< SDValue >	Ops
	)

Definition at line 10949 of file SelectionDAG.cpp.

References getVTList(), N, and SelectNodeTo().

◆ SelectNodeTo() [3/10]

SDNode * SelectionDAG::SelectNodeTo	(	SDNode *	N,
		unsigned	MachineOpc,
		EVT	VT,
		SDValue	Op1
	)

Definition at line 10926 of file SelectionDAG.cpp.

References getVTList(), N, and SelectNodeTo().

◆ SelectNodeTo() [4/10]

SDNode * SelectionDAG::SelectNodeTo	(	SDNode *	N,
		unsigned	MachineOpc,
		EVT	VT,
		SDValue	Op1,
		SDValue	Op2
	)

Definition at line 10933 of file SelectionDAG.cpp.

References getVTList(), N, and SelectNodeTo().

◆ SelectNodeTo() [5/10]

SDNode * SelectionDAG::SelectNodeTo	(	SDNode *	N,
		unsigned	MachineOpc,
		EVT	VT,
		SDValue	Op1,
		SDValue	Op2,
		SDValue	Op3
	)

Definition at line 10941 of file SelectionDAG.cpp.

References getVTList(), N, and SelectNodeTo().

◆ SelectNodeTo() [6/10]

SDNode * SelectionDAG::SelectNodeTo	(	SDNode *	N,
		unsigned	MachineOpc,
		EVT	VT1,
		EVT	VT2
	)

Definition at line 10961 of file SelectionDAG.cpp.

References getVTList(), N, and SelectNodeTo().

◆ SelectNodeTo() [7/10]

SDNode * SelectionDAG::SelectNodeTo	(	SDNode *	N,
		unsigned	MachineOpc,
		EVT	VT1,
		EVT	VT2,
		ArrayRef< SDValue >	Ops
	)

Definition at line 10955 of file SelectionDAG.cpp.

References getVTList(), N, and SelectNodeTo().

◆ SelectNodeTo() [8/10]

SDNode * SelectionDAG::SelectNodeTo	(	SDNode *	N,
		unsigned	MachineOpc,
		EVT	VT1,
		EVT	VT2,
		EVT	VT3,
		ArrayRef< SDValue >	Ops
	)

Definition at line 10967 of file SelectionDAG.cpp.

References getVTList(), N, and SelectNodeTo().

◆ SelectNodeTo() [9/10]

SDNode * SelectionDAG::SelectNodeTo	(	SDNode *	N,
		unsigned	MachineOpc,
		EVT	VT1,
		EVT	VT2,
		SDValue	Op1,
		SDValue	Op2
	)

Definition at line 10974 of file SelectionDAG.cpp.

References getVTList(), N, and SelectNodeTo().

◆ SelectNodeTo() [10/10]

SDNode * SelectionDAG::SelectNodeTo	(	SDNode *	N,
		unsigned	MachineOpc,
		SDVTList	VTs,
		ArrayRef< SDValue >	Ops
	)

Definition at line 10982 of file SelectionDAG.cpp.

References MorphNodeTo(), N, RemoveDeadNode(), and ReplaceAllUsesWith().

◆ setFlagInserter()

void llvm::SelectionDAG::setFlagInserter ( FlagInserter * FI )

inline

Definition at line 515 of file SelectionDAG.h.

Referenced by llvm::SelectionDAG::FlagInserter::FlagInserter(), and llvm::SelectionDAG::FlagInserter::~FlagInserter().

◆ setFunctionLoweringInfo()

void llvm::SelectionDAG::setFunctionLoweringInfo ( FunctionLoweringInfo * FuncInfo )

inline

Definition at line 482 of file SelectionDAG.h.

◆ setGraphAttrs()

void SelectionDAG::setGraphAttrs	(	const SDNode *	N,
		const char *	Attrs
	)

Set graph attributes for a node. (eg. "color=red".)

setGraphAttrs - Set graph attributes for a node.

(eg. "color=red".)

Definition at line 191 of file SelectionDAGPrinter.cpp.

References llvm::errs(), and N.

◆ setGraphColor()

void SelectionDAG::setGraphColor	(	const SDNode *	N,
		const char *	Color
	)

Convenience for setting node color attribute.

setGraphColor - Convenience for setting node color attribute.

Definition at line 221 of file SelectionDAGPrinter.cpp.

References llvm::errs(), and N.

◆ setNodeMemRefs()

void SelectionDAG::setNodeMemRefs	(	MachineSDNode *	N,
		ArrayRef< MachineMemOperand * >	NewMemRefs
	)

Mutate the specified machine node's memory references to the provided list.

Definition at line 10896 of file SelectionDAG.cpp.

References llvm::copy(), llvm::ArrayRef< T >::empty(), N, and llvm::ArrayRef< T >::size().

Referenced by CloneNodeWithValues(), llvm::AArch64SelectionDAGInfo::EmitMOPS(), llvm::AArch64SelectionDAGInfo::EmitTargetCodeForSetTag(), getLoadStackGuard(), llvm::SelectionDAGBuilder::LowerAsSTATEPOINT(), ReplaceATOMIC_LOAD_128Results(), ReplaceCMP_SWAP_128Results(), ReplaceCMP_SWAP_64Results(), llvm::RISCVDAGToDAGISel::Select(), llvm::HexagonDAGToDAGISel::SelectBrevLdIntrinsic(), llvm::SelectionDAGISel::SelectCodeCommon(), llvm::HexagonDAGToDAGISel::SelectIndexedStore(), llvm::HexagonDAGToDAGISel::SelectV65Gather(), llvm::HexagonDAGToDAGISel::SelectV65GatherPred(), llvm::RISCVDAGToDAGISel::selectVLSEG(), llvm::RISCVDAGToDAGISel::selectVLSEGFF(), llvm::RISCVDAGToDAGISel::selectVLXSEG(), llvm::RISCVDAGToDAGISel::selectVSSEG(), llvm::RISCVDAGToDAGISel::selectVSXSEG(), llvm::RISCVDAGToDAGISel::tryIndexedLoad(), and llvm::X86InstrInfo::unfoldMemoryOperand().

◆ setRoot()

const SDValue & llvm::SelectionDAG::setRoot ( SDValue N )

inline

Set the current root tag of the SelectionDAG.

Definition at line 584 of file SelectionDAG.h.

References assert(), llvm::checkForCycles(), and N.

◆ setSubgraphColor()

void SelectionDAG::setSubgraphColor	(	SDNode *	N,
		const char *	Color
	)

Convenience for setting subgraph color attribute.

setSubgraphColor - Convenience for setting subgraph color attribute.

Definition at line 265 of file SelectionDAGPrinter.cpp.

References llvm::errs(), and N.

◆ shouldOptForSize()

bool SelectionDAG::shouldOptForSize ( ) const

◆ SignBitIsZero()

bool SelectionDAG::SignBitIsZero	(	SDValue	Op,
		unsigned	Depth = `0`
	)		const

Return true if the sign bit of Op is known to be zero.

SignBitIsZero - Return true if the sign bit of Op is known to be zero.

We use this predicate to simplify operations downstream.

Definition at line 2948 of file SelectionDAG.cpp.

References llvm::BitWidth, llvm::Depth, llvm::APInt::getSignMask(), and MaskedValueIsZero().

Referenced by canReduceVMulWidth(), checkSignTestSetCCCombine(), combineUIntToFP(), llvm::TargetLowering::expandABD(), getCmp(), and LowerVSETCC().

◆ simplifyFPBinop()

SDValue SelectionDAG::simplifyFPBinop	(	unsigned	Opcode,
		SDValue	X,
		SDValue	Y,
		SDNodeFlags	Flags
	)

Try to simplify a floating-point binary operation into 1 of its operands or a constant.

Definition at line 10255 of file SelectionDAG.cpp.

References llvm::ISD::FADD, llvm::ISD::FDIV, llvm::ISD::FMUL, llvm::ISD::FSUB, getConstantFP(), getUNDEF(), llvm::ConstantFPSDNode::getValueAPF(), llvm::isConstOrConstSplatFP(), llvm::APFloat::isExactlyValue(), llvm::APFloat::isInfinity(), llvm::APFloat::isNaN(), llvm::APFloat::isNegZero(), llvm::APFloat::isPosZero(), llvm::APFloat::isZero(), X, and Y.

Referenced by getNode().

◆ simplifySelect()

SDValue SelectionDAG::simplifySelect	(	SDValue	Cond,
		SDValue	TVal,
		SDValue	FVal
	)

Try to simplify a select/vselect into 1 of its operands or a constant.

Definition at line 10204 of file SelectionDAG.cpp.

References llvm::CallingConv::C, Cond, F, isBoolConstant(), and isConstantValueOfAnyType().

Referenced by combineSelect(), and getNode().

◆ simplifyShift()

SDValue SelectionDAG::simplifyShift	(	SDValue	X,
		SDValue	Y
	)

Try to simplify a shift into 1 of its operands or a constant.

Definition at line 10227 of file SelectionDAG.cpp.

References getConstant(), getUNDEF(), llvm::isNullOrNullSplat(), llvm::ISD::matchUnaryPredicate(), X, and Y.

Referenced by getNode().

◆ SplitEVL()

std::pair< SDValue, SDValue > SelectionDAG::SplitEVL	(	SDValue	N,
		EVT	VecVT,
		const SDLoc &	DL
	)

Split the explicit vector length parameter of a VP operation.

Definition at line 13006 of file SelectionDAG.cpp.

References assert(), DL, getConstant(), getNode(), llvm::EVT::getScalarSizeInBits(), llvm::EVT::getVectorElementCount(), llvm::EVT::getVectorMinNumElements(), getVScale(), llvm::Hi, llvm::EVT::isFixedLengthVector(), llvm::details::FixedOrScalableQuantity< LeafTy, ValueTy >::isKnownEven(), llvm::Lo, N, llvm::ISD::UMIN, and llvm::ISD::USUBSAT.

Referenced by SplitVectorReductionOp(), and SplitVPOp().

◆ SplitScalar()

std::pair< SDValue, SDValue > SelectionDAG::SplitScalar	(	const SDValue &	N,
		const SDLoc &	DL,
		const EVT &	LoVT,
		const EVT &	HiVT
	)

Split the scalar node with EXTRACT_ELEMENT using the provided VTs and return the low/high part.

Definition at line 12925 of file SelectionDAG.cpp.

References assert(), DL, llvm::ISD::EXTRACT_ELEMENT, getIntPtrConstant(), getNode(), llvm::Hi, llvm::EVT::isVector(), llvm::Lo, and N.

Referenced by createGPRPairNode(), createGPRPairNodei64(), Expand64BitShift(), expandBitCastI128ToF128(), llvm::TargetLowering::expandDIVREMByConstant(), getMaskNode(), initAccumulator(), LowerBITCAST(), lowerI128ToGR128(), llvm::AArch64TargetLowering::LowerOperation(), llvm::RISCVTargetLowering::LowerOperation(), llvm::AMDGPUTargetLowering::LowerUDIVREM64(), LowerVectorAllEqual(), lowerVectorIntrinsicScalars(), LowerWRITE_REGISTER(), Passv64i1ArgInRegs(), PerformADDVecReduce(), performMADD_MSUBCombine(), ReplaceATOMIC_LOAD_128Results(), ReplaceCMP_SWAP_128Results(), ReplaceLongIntrinsic(), llvm::X86TargetLowering::ReplaceNodeResults(), splatSplitI64WithVL(), llvm::RISCVTargetLowering::splitValueIntoRegisterParts(), and WinDBZCheckDenominator().

◆ SplitVector() [1/2]

std::pair< SDValue, SDValue > llvm::SelectionDAG::SplitVector	(	const SDValue &	N,
		const SDLoc &	DL
	)

inline

Split the vector with EXTRACT_SUBVECTOR and return the low/high part.

Definition at line 2290 of file SelectionDAG.h.

References DL, GetSplitDestVTs(), N, and SplitVector().

◆ SplitVector() [2/2]

std::pair< SDValue, SDValue > SelectionDAG::SplitVector	(	const SDValue &	N,
		const SDLoc &	DL,
		const EVT &	LoVT,
		const EVT &	HiVT
	)

Split the vector with EXTRACT_SUBVECTOR using the provided VTs and return the low/high part.

SplitVector - Split the vector with EXTRACT_SUBVECTOR and return the low/high part.

Definition at line 12985 of file SelectionDAG.cpp.

References assert(), DL, llvm::ISD::EXTRACT_SUBVECTOR, getNode(), getVectorIdxConstant(), llvm::EVT::getVectorMinNumElements(), llvm::Hi, llvm::EVT::isScalableVector(), llvm::Lo, and N.

Referenced by combineHorizOpWithShuffle(), combinePredicateReduction(), llvm::TargetLowering::expandVecReduce(), llvm::TargetLowering::expandVectorNaryOpBySplitting(), getPMOVMSKB(), getVectorBitwiseReduce(), isHorizontalBinOp(), LowerVecReduceMinMax(), LowerVectorAllEqual(), ReplaceAddWithADDP(), llvm::X86TargetLowering::ReplaceNodeResults(), SplitStrictFPVectorOp(), SplitVector(), SplitVectorOp(), SplitVectorOperand(), SplitVectorReductionOp(), and SplitVPOp().

◆ SplitVectorOperand()

std::pair< SDValue, SDValue > llvm::SelectionDAG::SplitVectorOperand	(	const SDNode *	N,
		unsigned	OpNo
	)

inline

Split the node's operand with EXTRACT_SUBVECTOR and return the low/high part.

Definition at line 2301 of file SelectionDAG.h.

References N, and SplitVector().

Referenced by LowerCVTPS2PH(), LowerTruncate(), llvm::X86TargetLowering::ReplaceNodeResults(), ReplaceReductionResults(), llvm::SITargetLowering::splitBinaryVectorOp(), llvm::SITargetLowering::splitTernaryVectorOp(), and llvm::SITargetLowering::splitUnaryVectorOp().

◆ transferDbgValues()

void SelectionDAG::transferDbgValues	(	SDValue	From,
		SDValue	To,
		unsigned	OffsetInBits = `0`,
		unsigned	SizeInBits = `0`,
		bool	InvalidateDbg = `true`
	)

Transfer debug values from one node to another, while optionally generating fragment expressions for split-up values.

If InvalidateDbg is set, debug values are invalidated after they are transferred.

Definition at line 11379 of file SelectionDAG.cpp.

References AddDbgValue(), assert(), llvm::DIExpression::createFragmentExpression(), From, llvm::SDDbgOperand::fromNode(), getDbgValueList(), GetDbgValues(), llvm::SDNode::getHasDebugValue(), llvm::SDNode::getIROrder(), llvm::SDValue::getNode(), llvm::SDValue::getResNo(), llvm::is_contained(), and llvm::SmallVectorTemplateBase< T, bool >::push_back().

Referenced by getNode(), ReplaceAllUsesOfValuesWith(), ReplaceAllUsesOfValueWith(), and ReplaceAllUsesWith().

◆ UnrollVectorOp()

SDValue SelectionDAG::UnrollVectorOp	(	SDNode *	N,
		unsigned	ResNE = `0`
	)

Utility function used by legalize and lowering to "unroll" a vector operation by splitting out the scalars and operating on each element individually.

If the ResNE is 0, fully unroll the vector op. If ResNE is less than the width of the vector op, unroll up to ResNE. If the ResNE is greater than the width of the vector op, unroll the vector op and fill the end of the resulting vector with UNDEFS.

Definition at line 12699 of file SelectionDAG.cpp.

References llvm::ISD::ADDRSPACECAST, assert(), llvm::ISD::EXTRACT_VECTOR_ELT, getAddrSpaceCast(), getBuildVector(), getContext(), getMergeValues(), getNode(), getShiftAmountOperand(), getUNDEF(), llvm::SDValue::getValue(), llvm::SDValue::getValueType(), getValueType(), llvm::EVT::getVectorElementType(), getVectorIdxConstant(), llvm::EVT::getVectorNumElements(), llvm::EVT::getVectorVT(), llvm::EVT::isVector(), N, Operands, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::ISD::ROTL, llvm::ISD::ROTR, llvm::ISD::SELECT, llvm::ISD::SHL, llvm::ISD::SIGN_EXTEND_INREG, llvm::ISD::SRA, llvm::ISD::SRL, and llvm::ISD::VSELECT.

Referenced by llvm::TargetLowering::expandABD(), llvm::TargetLowering::expandAddSubSat(), llvm::TargetLowering::expandFMINIMUM_FMAXIMUM(), llvm::TargetLowering::expandFMINIMUMNUM_FMAXIMUMNUM(), llvm::TargetLowering::expandIntMINMAX(), llvm::TargetLowering::expandShlSat(), LowerVectorFP_TO_INT(), LowerVectorINT_TO_FP(), and unrollVectorShift().

◆ UnrollVectorOverflowOp()

std::pair< SDValue, SDValue > SelectionDAG::UnrollVectorOverflowOp	(	SDNode *	N,
		unsigned	ResNE = `0`
	)

Like UnrollVectorOp(), but for the [US](ADD|SUB|MUL)O family of opcodes.

This is a separate function because those opcodes have two results.

Definition at line 12811 of file SelectionDAG.cpp.

References llvm::SmallVectorImpl< T >::append(), assert(), ExtractVectorElements(), getBoolConstant(), getBuildVector(), getConstant(), getContext(), getDataLayout(), getNode(), getSelect(), llvm::TargetLoweringBase::getSetCCResultType(), getUNDEF(), llvm::SDValue::getValue(), llvm::EVT::getVectorElementType(), llvm::EVT::getVectorNumElements(), llvm::EVT::getVectorVT(), getVTList(), N, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::ISD::SADDO, llvm::ISD::SMULO, llvm::ISD::SSUBO, llvm::ISD::UADDO, llvm::ISD::UMULO, and llvm::ISD::USUBO.

◆ updateDivergence()

void SelectionDAG::updateDivergence ( SDNode * N )

Definition at line 11922 of file SelectionDAG.cpp.

References llvm::append_range(), calculateDivergence(), llvm::SmallVectorBase< Size_T >::empty(), N, and llvm::SmallVectorImpl< T >::pop_back_val().

Referenced by ReplaceAllUsesOfValueWith(), ReplaceAllUsesWith(), and UpdateNodeOperands().

◆ UpdateNodeOperands() [1/6]

SDNode * SelectionDAG::UpdateNodeOperands	(	SDNode *	N,
		ArrayRef< SDValue >	Ops
	)

Definition at line 10854 of file SelectionDAG.cpp.

References assert(), llvm::ArrayRef< T >::begin(), llvm::ArrayRef< T >::end(), N, llvm::ArrayRef< T >::size(), and updateDivergence().

◆ UpdateNodeOperands() [2/6]

SDNode * SelectionDAG::UpdateNodeOperands	(	SDNode *	N,
		SDValue	Op
	)

Mutate the specified node in-place to have the specified operands.

UpdateNodeOperands - Mutate the specified node in-place to have the specified operands.

If the resultant node already exists in the DAG, this does not modify the specified node, instead it returns the node that already exists. If the resultant node does not exist in the DAG, the input node is returned. As a degenerate case, if you specify the same input operands as the node already has, the input node is returned.

Definition at line 10780 of file SelectionDAG.cpp.

References assert(), N, and updateDivergence().

Referenced by foldADDIForFasterLocalAccesses(), llvm::SITargetLowering::legalizeTargetIndependentNode(), makeEquivalentMemoryOrdering(), moveBelowOrigChain(), llvm::PPCTargetLowering::PerformDAGCombine(), llvm::AMDGPUTargetLowering::performIntrinsicWOChainCombine(), and UpdateNodeOperands().

◆ UpdateNodeOperands() [3/6]

SDNode * SelectionDAG::UpdateNodeOperands	(	SDNode *	N,
		SDValue	Op1,
		SDValue	Op2
	)

Definition at line 10805 of file SelectionDAG.cpp.

References assert(), N, and updateDivergence().

◆ UpdateNodeOperands() [4/6]

SDNode * SelectionDAG::UpdateNodeOperands	(	SDNode *	N,
		SDValue	Op1,
		SDValue	Op2,
		SDValue	Op3
	)

Definition at line 10834 of file SelectionDAG.cpp.

References N, and UpdateNodeOperands().

◆ UpdateNodeOperands() [5/6]

SDNode * SelectionDAG::UpdateNodeOperands	(	SDNode *	N,
		SDValue	Op1,
		SDValue	Op2,
		SDValue	Op3,
		SDValue	Op4
	)

Definition at line 10840 of file SelectionDAG.cpp.

References N, and UpdateNodeOperands().

◆ UpdateNodeOperands() [6/6]

SDNode * SelectionDAG::UpdateNodeOperands	(	SDNode *	N,
		SDValue	Op1,
		SDValue	Op2,
		SDValue	Op3,
		SDValue	Op4,
		SDValue	Op5
	)

Definition at line 10847 of file SelectionDAG.cpp.

References N, and UpdateNodeOperands().

◆ viewGraph() [1/2]

void SelectionDAG::viewGraph ( )

Definition at line 159 of file SelectionDAGPrinter.cpp.

References viewGraph().

Referenced by viewGraph().

◆ viewGraph() [2/2]

void SelectionDAG::viewGraph ( const std::string & Title )

Pop up a GraphViz/gv window with the DAG rendered using 'dot'.

viewGraph - Pop up a ghostview window with the reachable parts of the DAG rendered using 'dot'.

Definition at line 146 of file SelectionDAGPrinter.cpp.

References llvm::errs(), getMachineFunction(), getName(), and llvm::ViewGraph().

◆ WidenVector()

SDValue SelectionDAG::WidenVector	(	const SDValue &	N,
		const SDLoc &	DL
	)

Widen the vector up to the next power of two using INSERT_SUBVECTOR.

Definition at line 13024 of file SelectionDAG.cpp.

References DL, getContext(), getNode(), getUNDEF(), llvm::EVT::getVectorElementType(), getVectorIdxConstant(), llvm::EVT::getVectorNumElements(), llvm::EVT::getVectorVT(), llvm::ISD::INSERT_SUBVECTOR, N, and llvm::NextPowerOf2().

◆ willNotOverflowAdd()

bool llvm::SelectionDAG::willNotOverflowAdd	(	bool	IsSigned,
		SDValue	N0,
		SDValue	N1
	)		const

inline

Determine if the result of the addition of 2 nodes can never overflow.

Definition at line 1995 of file SelectionDAG.h.

References computeOverflowForAdd(), and OFK_Never.

Referenced by combineAdd(), combineShiftToAVG(), and promoteExtBeforeAdd().

◆ willNotOverflowMul()

bool llvm::SelectionDAG::willNotOverflowMul	(	bool	IsSigned,
		SDValue	N0,
		SDValue	N1
	)		const

inline

Determine if the result of the mul of 2 nodes can never overflow.

Definition at line 2031 of file SelectionDAG.h.

References computeOverflowForMul(), and OFK_Never.

◆ willNotOverflowSub()

bool llvm::SelectionDAG::willNotOverflowSub	(	bool	IsSigned,
		SDValue	N0,
		SDValue	N1
	)		const

inline

Determine if the result of the sub of 2 nodes can never overflow.

Definition at line 2013 of file SelectionDAG.h.

References computeOverflowForSub(), and OFK_Never.

Referenced by llvm::TargetLowering::expandABD().

Friends And Related Function Documentation

◆ DAGUpdateListener

friend struct DAGUpdateListener

friend

DAGUpdateListener is a friend so it can manipulate the listener stack.

Definition at line 399 of file SelectionDAG.h.

Member Data Documentation

◆ MaxRecursionDepth

constexpr unsigned llvm::SelectionDAG::MaxRecursionDepth = 6

staticconstexpr

◆ NewNodesMustHaveLegalTypes

bool llvm::SelectionDAG::NewNodesMustHaveLegalTypes = false

When true, additional steps are taken to ensure that getConstant() and similar functions return DAG nodes that have legal types.

This is important after type legalization since any illegally typed nodes generated after this point will not experience type legalization.

Definition at line 395 of file SelectionDAG.h.

Referenced by combineBinOpOfExtractToReduceTree(), FoldConstantArithmetic(), getConstant(), and getNode().

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

include/llvm/CodeGen/SelectionDAG.h
lib/CodeGen/SelectionDAG/DAGCombiner.cpp
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
lib/CodeGen/SelectionDAG/LegalizeTypes.cpp
lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp
lib/CodeGen/SelectionDAG/SelectionDAG.cpp
lib/CodeGen/SelectionDAG/SelectionDAGDumper.cpp
lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp

Classes

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Static Public Attributes

Friends

Detailed Description

Member Typedef Documentation

◆ allnodes_const_iterator

◆ allnodes_iterator

Member Enumeration Documentation

◆ OverflowKind

Constructor & Destructor Documentation

◆ SelectionDAG() [1/2]

◆ SelectionDAG() [2/2]

◆ ~SelectionDAG()

Member Function Documentation

◆ addCallSiteInfo()

◆ AddDbgLabel()

◆ AddDbgValue()

◆ addHeapAllocSite()

◆ addMMRAMetadata()

◆ addNoMergeSiteInfo()

◆ addPCSections()

◆ allnodes() [1/2]

◆ allnodes() [2/2]

◆ allnodes_begin() [1/2]

◆ allnodes_begin() [2/2]

◆ allnodes_end() [1/2]

◆ allnodes_end() [2/2]

◆ allnodes_size()

◆ areNonVolatileConsecutiveLoads()

◆ AssignTopologicalOrder()

◆ ByvalParmDbgBegin()

◆ ByvalParmDbgEnd()

◆ calculateDivergence()

◆ canCreateUndefOrPoison() [1/2]

◆ canCreateUndefOrPoison() [2/2]

◆ cannotBeOrderedNegativeFP()

◆ canonicalizeCommutativeBinop()

◆ clear()

◆ clearGraphAttrs()

◆ Combine()

◆ computeKnownBits() [1/2]

◆ computeKnownBits() [2/2]

◆ ComputeMaxSignificantBits() [1/2]

◆ ComputeMaxSignificantBits() [2/2]

◆ ComputeNumSignBits() [1/2]

◆ ComputeNumSignBits() [2/2]

◆ computeOverflowForAdd()

◆ computeOverflowForMul()

◆ computeOverflowForSignedAdd()

◆ computeOverflowForSignedMul()

◆ computeOverflowForSignedSub()

◆ computeOverflowForSub()

◆ computeOverflowForUnsignedAdd()

◆ computeOverflowForUnsignedMul()

◆ computeOverflowForUnsignedSub()

◆ computeVectorKnownZeroElements()

◆ copyExtraInfo()

◆ CreateStackTemporary() [1/3]

◆ CreateStackTemporary() [2/3]

◆ CreateStackTemporary() [3/3]

◆ DbgBegin()

◆ DbgEnd()

◆ DbgLabelBegin()

◆ DbgLabelEnd()

◆ DeleteNode()

◆ doesNodeExist()

◆ dump()

◆ dumpDotGraph()

◆ expandMultipleResultFPLibCall()

◆ expandVAArg()

◆ expandVACopy()

◆ ExtractVectorElements()

◆ FoldConstantArithmetic()

◆ foldConstantFPMath()

◆ FoldSetCC()

◆ FoldSymbolOffset()