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"

Collaboration diagram for llvm::SelectionDAG:

[legend]

Classes
struct	DAGNodeDeletedListener

struct	DAGUpdateListener
	Clients of various APIs that cause global effects on the DAG can optionally implement this interface. 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, CodeGenOpt::Level)

	SelectionDAG (const SelectionDAG &)=delete

SelectionDAG &	operator= (const SelectionDAG &)=delete

	~SelectionDAG ()

void	init (MachineFunction &NewMF, OptimizationRemarkEmitter &NewORE, Pass PassPtr, const TargetLibraryInfo LibraryInfo, LegacyDivergenceAnalysis *Divergence)
	Prepare this SelectionDAG to process code in the given MachineFunction. More...

void	setFunctionLoweringInfo (FunctionLoweringInfo *FuncInfo)

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

MachineFunction &	getMachineFunction () const

const Pass *	getPass () const

const DataLayout &	getDataLayout () const

const TargetMachine &	getTarget () const

const TargetSubtargetInfo &	getSubtarget () const

const TargetLowering &	getTargetLoweringInfo () const

const TargetLibraryInfo &	getLibInfo () const

const SelectionDAGTargetInfo &	getSelectionDAGInfo () const

LLVMContext *	getContext () const

OptimizationRemarkEmitter &	getORE () const

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

void	viewGraph ()

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

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

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

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

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

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. More...

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

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

void	VerifyDAGDiverence ()

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

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

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

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. More...

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

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

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

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

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 char TargetFlags=0)

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

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

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

SDValue	getTargetConstantPool (const Constant *C, EVT VT, unsigned Align=0, int Offset=0, unsigned char TargetFlags=0)

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

SDValue	getTargetConstantPool (MachineConstantPoolValue *C, EVT VT, unsigned Align=0, int Offset=0, unsigned char TargetFlags=0)

SDValue	getTargetIndex (int Index, EVT VT, int64_t Offset=0, unsigned char TargetFlags=0)

SDValue	getBasicBlock (MachineBasicBlock *MBB)

SDValue	getBasicBlock (MachineBasicBlock *MBB, SDLoc dl)

SDValue	getExternalSymbol (const char *Sym, EVT VT)

SDValue	getExternalSymbol (const char *Sym, const SDLoc &dl, EVT VT)

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

SDValue	getMCSymbol (MCSymbol *Sym, EVT VT)

SDValue	getValueType (EVT)

SDValue	getRegister (unsigned 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 char TargetFlags=0)

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

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

SDValue	getCopyToReg (SDValue Chain, const SDLoc &dl, unsigned 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, unsigned Reg, EVT VT)

SDValue	getCopyFromReg (SDValue Chain, const SDLoc &dl, unsigned 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. More...

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

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

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

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

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). More...

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. More...

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. More...

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. More...

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. More...

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. More...

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

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

SDValue	getObjectPtrOffset (const SDLoc &SL, SDValue Op, int64_t Offset)
	Create an add instruction with appropriate flags when used for addressing some offset of an object. More...

SDValue	getObjectPtrOffset (const SDLoc &SL, SDValue Op, 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. More...

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). More...

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

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

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

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

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

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)

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

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

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

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

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, SDValue N5)

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. More...

SDValue	getMemcpy (SDValue Chain, const SDLoc &dl, SDValue Dst, SDValue Src, SDValue Size, unsigned Align, bool isVol, bool AlwaysInline, bool isTailCall, MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo)

SDValue	getMemmove (SDValue Chain, const SDLoc &dl, SDValue Dst, SDValue Src, SDValue Size, unsigned Align, bool isVol, bool isTailCall, MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo)

SDValue	getMemset (SDValue Chain, const SDLoc &dl, SDValue Dst, SDValue Src, SDValue Size, unsigned Align, bool isVol, bool isTailCall, MachinePointerInfo DstPtrInfo)

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

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

SDValue	getAtomicMemset (SDValue Chain, const SDLoc &dl, SDValue Dst, unsigned DstAlign, 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)
	Helper function to make it easier to build SetCC's if you just have an ISD::CondCode instead of an SDValue. More...

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

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. More...

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

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

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. More...

SDValue	getAtomicCmpSwap (unsigned Opcode, const SDLoc &dl, EVT MemVT, SDVTList VTs, SDValue Chain, SDValue Ptr, SDValue Cmp, SDValue Swp, MachinePointerInfo PtrInfo, unsigned Alignment, AtomicOrdering SuccessOrdering, AtomicOrdering FailureOrdering, SyncScope::ID SSID)
	Gets a node for an atomic cmpxchg op. More...

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

SDValue	getAtomic (unsigned Opcode, const SDLoc &dl, EVT MemVT, SDValue Chain, SDValue Ptr, SDValue Val, const Value *PtrVal, unsigned Alignment, AtomicOrdering Ordering, SyncScope::ID SSID)
	Gets a node for an atomic op, produces result (if relevant) and chain and takes 2 operands. More...

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

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. More...

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. More...

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

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

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

SDValue	getLoad (EVT VT, const SDLoc &dl, SDValue Chain, SDValue Ptr, MachinePointerInfo PtrInfo, unsigned Alignment=0, 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. More...

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, unsigned Alignment=0, 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, unsigned Alignment=0, 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, unsigned Alignment=0, MachineMemOperand::Flags MMOFlags=MachineMemOperand::MONone, const AAMDNodes &AAInfo=AAMDNodes())
	Helper function to build ISD::STORE nodes. More...

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, unsigned Alignment=0, 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	getMemBasePlusOffset (SDValue Base, unsigned Offset, const SDLoc &DL)
	Returns sum of the base pointer and offset. More...

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

SDValue	getMaskedStore (SDValue Chain, const SDLoc &dl, SDValue Val, SDValue Ptr, SDValue Mask, EVT MemVT, MachineMemOperand *MMO, bool IsTruncating=false, bool IsCompressing=false)

SDValue	getMaskedGather (SDVTList VTs, EVT VT, const SDLoc &dl, ArrayRef< SDValue > Ops, MachineMemOperand *MMO)

SDValue	getMaskedScatter (SDVTList VTs, EVT VT, const SDLoc &dl, ArrayRef< SDValue > Ops, MachineMemOperand *MMO)

template<class TargetMemSDNode >
SDValue	getTargetMemSDNode (SDVTList VTs, ArrayRef< SDValue > Ops, const SDLoc &dl, EVT MemVT, MachineMemOperand *MMO)
	Return (create a new or find existing) a target-specific node. More...

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

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

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

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

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

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

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

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

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

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)

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

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. More...

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 TargetOpc, EVT VT1, EVT VT2, SDValue Op1)

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. More...

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. More...

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. More...

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. More...

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

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

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

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

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

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

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

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. More...

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

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

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

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

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

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

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

SDValue	makeEquivalentMemoryOrdering (LoadSDNode *Old, SDValue New)
	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. More...

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. More...

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

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

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

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

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

SDDbgInfo::DbgIterator	DbgBegin ()

SDDbgInfo::DbgIterator	DbgEnd ()

SDDbgInfo::DbgIterator	ByvalParmDbgBegin ()

SDDbgInfo::DbgIterator	ByvalParmDbgEnd ()

SDDbgInfo::DbgLabelIterator	DbgLabelBegin ()

SDDbgInfo::DbgLabelIterator	DbgLabelEnd ()

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

void	dump () const

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

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

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

SDValue	FoldConstantArithmetic (unsigned Opcode, const SDLoc &DL, EVT VT, SDNode Cst1, SDNode Cst2)

SDValue	FoldConstantArithmetic (unsigned Opcode, const SDLoc &DL, EVT VT, const ConstantSDNode Cst1, const ConstantSDNode Cst2)

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

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

SDValue	GetDemandedBits (SDValue V, const APInt &Mask)
	See if the specified operand can be simplified with the knowledge that only the bits specified by Mask are used. More...

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

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

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. More...

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. More...

OverflowKind	computeOverflowKind (SDValue N0, SDValue N1) const
	Determine if the result of the addition of 2 node can overflow. More...

bool	isKnownToBeAPowerOfTwo (SDValue Val) const
	Test if the given value is known to have exactly one bit set. More...

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. More...

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. More...

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. More...

bool	isKnownNeverNaN (SDValue Op, bool SNaN=false, unsigned Depth=0) const
	Test whether the given SDValue is known to never be NaN. More...

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. More...

bool	isKnownNeverZero (SDValue Op) const
	Test whether the given SDValue is known to contain non-zero value(s). More...

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

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

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

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

SDValue	matchBinOpReduction (SDNode *Extract, ISD::NodeType &BinOp, ArrayRef< ISD::NodeType > CandidateBinOps)
	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. More...

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. More...

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

unsigned	InferPtrAlignment (SDValue Ptr) const
	Infer alignment of a load / store address. More...

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. More...

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 provides VTs and return the low/high part. More...

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

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

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

unsigned	getEVTAlignment (EVT MemoryVT) const
	Compute the default alignment value for the given type. More...

SDNode *	isConstantIntBuildVectorOrConstantInt (SDValue N)
	Test whether the given value is a constant int or similar node. More...

SDNode *	isConstantFPBuildVectorOrConstantFP (SDValue N)
	Test whether the given value is a constant FP or similar node. More...

bool	isConstantValueOfAnyType (SDValue N)


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

SDValue	getConstant (const APInt &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	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	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`. More...


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

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 const fltSemantics &	EVTToAPFloatSemantics (EVT VT)
	Returns an APFloat semantics tag appropriate for the given type. More...

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. More...

std::map< const SDNode *, std::string >	NodeGraphAttrs

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

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 222 of file SelectionDAG.h.

Member Typedef Documentation

◆ allnodes_const_iterator

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

Definition at line 435 of file SelectionDAG.h.

◆ allnodes_iterator

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

Definition at line 440 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 1449 of file SelectionDAG.h.

Constructor & Destructor Documentation

◆ SelectionDAG() [1/2]

SelectionDAG::SelectionDAG	(	const TargetMachine &	TM,
		CodeGenOpt::Level	OL
	)

explicit

Definition at line 994 of file SelectionDAG.cpp.

References Other.

◆ SelectionDAG() [2/2]

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

delete

◆ ~SelectionDAG()

SelectionDAG::~SelectionDAG ( )

Definition at line 1016 of file SelectionDAG.cpp.

References assert(), llvm::ISD::Constant, llvm::ISD::ConstantFP, llvm::SDNode::getDebugLoc(), llvm::SDLoc::getDebugLoc(), llvm::SDNode::getIROrder(), llvm::SDLoc::getIROrder(), llvm::SDNode::getOpcode(), llvm_unreachable, N, and llvm::SDNode::setDebugLoc().

Member Function Documentation

◆ AddDbgLabel()

void SelectionDAG::AddDbgLabel ( SDDbgLabel * DB )

Add a dbg_label SDNode.

Definition at line 8502 of file SelectionDAG.cpp.

Referenced by getUnderlyingArgReg().

◆ AddDbgValue()

void SelectionDAG::AddDbgValue	(	SDDbgValue *	DB,
		SDNode *	SD,
		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 8494 of file SelectionDAG.cpp.

References assert(), llvm::SDNode::getHasDebugValue(), and llvm::SDNode::setHasDebugValue().

Referenced by getUnderlyingArgReg(), llvm::SelectionDAGBuilder::resolveDanglingDebugInfo(), salvageDebugInfo(), and transferDbgValues().

◆ allnodes() [1/2]

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

inline

Definition at line 449 of file SelectionDAG.h.

References llvm::make_range().

Referenced by llvm::HexagonDAGToDAGISel::PreprocessISelDAG(), updateDivergence(), and VerifyDAGDiverence().

◆ allnodes() [2/2]

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

inline

Definition at line 452 of file SelectionDAG.h.

References llvm::make_range().

◆ allnodes_begin() [1/2]

allnodes_const_iterator llvm::SelectionDAG::allnodes_begin ( ) const

inline

Definition at line 437 of file SelectionDAG.h.

Referenced by AssignTopologicalOrder(), llvm::SelectionDAGISel::getUninvalidatedNodeId(), isTargetConstant(), and llvm::GraphTraits< SelectionDAG * >::nodes_begin().

◆ allnodes_begin() [2/2]

allnodes_iterator llvm::SelectionDAG::allnodes_begin ( )

inline

Definition at line 442 of file SelectionDAG.h.

◆ allnodes_end() [1/2]

allnodes_const_iterator llvm::SelectionDAG::allnodes_end ( ) const

inline

Definition at line 438 of file SelectionDAG.h.

Referenced by AssignTopologicalOrder(), isTargetConstant(), and llvm::GraphTraits< SelectionDAG * >::nodes_end().

◆ allnodes_end() [2/2]

allnodes_iterator llvm::SelectionDAG::allnodes_end ( )

inline

Definition at line 443 of file SelectionDAG.h.

◆ allnodes_size()

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

inline

Definition at line 445 of file SelectionDAG.h.

Referenced by 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 8976 of file SelectionDAG.cpp.

References llvm::MemSDNode::getChain(), llvm::EVT::getSizeInBits(), llvm::SDNode::getValueType(), llvm::LSBaseSDNode::isIndexed(), llvm::MemSDNode::isVolatile(), and llvm::BaseIndexOffset::match().

Referenced by EltsFromConsecutiveLoads(), and getBuildPairElt().

◆ 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 8405 of file SelectionDAG.cpp.

References allnodes_begin(), allnodes_end(), assert(), llvm::checkForCycles(), E, llvm::SDNode::getNumOperands(), I, and llvm::SDNode::setNodeId().

Referenced by llvm::SelectionDAGISel::getUninvalidatedNodeId().

◆ ByvalParmDbgBegin()

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

inline

Definition at line 1364 of file SelectionDAG.h.

References llvm::SDDbgInfo::ByvalParmDbgBegin().

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

◆ ByvalParmDbgEnd()

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

inline

Definition at line 1368 of file SelectionDAG.h.

References llvm::SDDbgInfo::ByvalParmDbgEnd().

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

◆ clear()

void SelectionDAG::clear ( )

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

Definition at line 1073 of file SelectionDAG.cpp.

References llvm::SDDbgInfo::clear(), getEntryNode(), and llvm::BumpPtrAllocatorImpl< AllocatorT, SlabSize, SizeThreshold >::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 170 of file SelectionDAGPrinter.cpp.

References llvm::errs().

◆ Combine()

void SelectionDAG::Combine	(	CombineLevel	Level,
		AliasAnalysis *	AA,
		CodeGenOpt::Level	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 19397 of file DAGCombiner.cpp.

◆ computeKnownBits() [1/2]

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 2286 of file SelectionDAG.cpp.

References llvm::APInt::getAllOnesValue(), llvm::SDValue::getValueType(), llvm::EVT::getVectorNumElements(), and llvm::EVT::isVector().

Referenced by adjustForRedundantAnd(), calculateByteProvider(), llvm::SelectionDAGISel::CheckOrMask(), combineSubToSubus(), combineVectorSignBitsTruncation(), computeKnownBits(), computeKnownBitsBinOp(), llvm::SparcTargetLowering::computeKnownBitsForTargetNode(), llvm::LanaiTargetLowering::computeKnownBitsForTargetNode(), llvm::AMDGPUTargetLowering::computeKnownBitsForTargetNode(), llvm::AArch64TargetLowering::computeKnownBitsForTargetNode(), llvm::ARMTargetLowering::computeKnownBitsForTargetNode(), llvm::SystemZTargetLowering::computeKnownBitsForTargetNode(), llvm::X86TargetLowering::computeKnownBitsForTargetNode(), ComputeNumSignBits(), computeOverflowKind(), llvm::XCoreTargetLowering::EmitInstrWithCustomInserter(), foldMaskAndShiftToScale(), generateEquivalentSub(), haveNoCommonBitsSet(), isBitfieldPositioningOp(), isKnownToBeAPowerOfTwo(), isTruncateOf(), isWordAligned(), LowerAndToBT(), LowerMUL(), LowerTruncateVecI1(), MaskedValueIsZero(), matchRotateSub(), llvm::AMDGPUTargetLowering::numBitsUnsigned(), llvm::ARMTargetLowering::PerformCMOVCombine(), llvm::ARMTargetLowering::PerformCMOVToBFICombine(), llvm::AMDGPUTargetLowering::performShlCombine(), llvm::AMDGPUTargetLowering::performTruncateCombine(), llvm::PPCTargetLowering::SelectAddressRegImm(), llvm::PPCTargetLowering::SelectAddressRegReg(), llvm::TargetLowering::SimplifyDemandedBits(), tryBitfieldInsertOpFromOr(), and tryBitfieldInsertOpFromOrAndImm().

◆ computeKnownBits() [2/2]

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 2297 of file SelectionDAG.cpp.

◆ ComputeNumSignBits() [1/2]

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 3275 of file SelectionDAG.cpp.

References llvm::APInt::getAllOnesValue(), llvm::SDValue::getValueType(), llvm::EVT::getVectorNumElements(), and llvm::EVT::isVector().

Referenced by calculateByteProvider(), canReduceVMulWidth(), combineAndMaskToShift(), combineHorizontalPredicateResult(), combineLogicBlendIntoPBLENDV(), combineMulToPMULDQ(), combineSIntToFP(), combineVectorPack(), combineVectorSignBitsTruncation(), combineVSelectWithAllOnesOrZeros(), ComputeNumSignBits(), computeNumSignBitsBinOp(), llvm::AMDGPUTargetLowering::ComputeNumSignBitsForTargetNode(), llvm::SystemZTargetLowering::ComputeNumSignBitsForTargetNode(), llvm::X86TargetLowering::ComputeNumSignBitsForTargetNode(), llvm::TargetLowering::expandMUL_LOHI(), foldExtendedSignBitTest(), generateEquivalentSub(), getAsCarry(), getFauxShuffleMask(), getShiftAmountTyForConstant(), isADDADDMUL(), isS16(), isTruncateOf(), llvm::AMDGPUTargetLowering::LowerDIVREM24(), llvm::AMDGPUTargetLowering::LowerSDIVREM(), LowerTruncateVecI1(), lowerVSELECTtoVectorShuffle(), matchVectorShuffleWithPACK(), llvm::AMDGPUTargetLowering::numBitsSigned(), llvm::AMDGPUTargetLowering::PerformDAGCombine(), and llvm::X86TargetLowering::SimplifyDemandedBitsForTargetNode().

◆ ComputeNumSignBits() [2/2]

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 3283 of file SelectionDAG.cpp.

◆ computeOverflowKind()

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

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

Definition at line 3203 of file SelectionDAG.cpp.

References computeKnownBits(), llvm::APInt::getBoolValue(), llvm::SDValue::getOpcode(), llvm::SDValue::getResNo(), llvm::isNullConstant(), OFK_Never, OFK_Sometime, llvm::ISD::UMUL_LOHI, and llvm::KnownBits::Zero.

Referenced by foldAddSubOfSignBit(), getAsCarry(), and isBooleanFlip().

◆ CreateStackTemporary() [1/2]

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 1922 of file SelectionDAG.cpp.

References llvm::MachineFrameInfo::CreateStackObject(), getContext(), getDataLayout(), getFrameIndex(), llvm::TargetLoweringBase::getFrameIndexTy(), llvm::MachineFunction::getFrameInfo(), getMachineFunction(), llvm::EVT::getStoreSize(), llvm::EVT::getTypeForEVT(), and llvm::max().

Referenced by llvm::StatepointLoweringState::allocateStackSlot(), llvm::TargetLowering::expandUnalignedLoad(), llvm::TargetLowering::expandUnalignedStore(), getExpandedMinMaxOps(), getMOVL(), llvm::SystemZTargetLowering::LowerCall(), LowerMULH(), lowerUINT_TO_FP_vec(), PrepareCall(), and unpackF64OnRV32DSoftABI().

◆ CreateStackTemporary() [2/2]

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

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

Definition at line 1933 of file SelectionDAG.cpp.

References llvm::AMDGPU::HSAMD::Kernel::Arg::Key::Align, llvm::MachineFrameInfo::CreateStackObject(), getContext(), getDataLayout(), getFrameIndex(), llvm::TargetLoweringBase::getFrameIndexTy(), llvm::MachineFunction::getFrameInfo(), getMachineFunction(), llvm::DataLayout::getPrefTypeAlignment(), llvm::EVT::getStoreSize(), llvm::EVT::getTypeForEVT(), and llvm::max().

◆ DbgBegin()

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

inline

Definition at line 1361 of file SelectionDAG.h.

References llvm::SDDbgInfo::DbgBegin().

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

◆ DbgEnd()

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

inline

Definition at line 1362 of file SelectionDAG.h.

References llvm::SDDbgInfo::DbgEnd().

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

◆ DbgLabelBegin()

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

inline

Definition at line 1372 of file SelectionDAG.h.

References llvm::SDDbgInfo::DbgLabelBegin().

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

◆ DbgLabelEnd()

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

inline

Definition at line 1375 of file SelectionDAG.h.

References llvm::computeKnownBits(), llvm::SDDbgInfo::DbgLabelEnd(), llvm::Depth, llvm::dump(), llvm::MaskedValueIsZero(), and llvm::salvageDebugInfo().

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 740 of file SelectionDAG.cpp.

References assert(), llvm::SDNode::DropOperands(), llvm::ilist_node_impl< OptionsT >::getIterator(), N, and llvm::SDNode::use_empty().

Referenced by addStackMapLiveVars(), llvm::TargetLowering::DAGCombinerInfo::CommitTargetLoweringOpt(), and isAnyConstantBuildVector().

◆ dump()

LLVM_DUMP_METHOD void SelectionDAG::dump ( ) const

Definition at line 744 of file SelectionDAGDumper.cpp.

Referenced by llvm::HexagonDAGToDAGISel::PreprocessISelDAG().

◆ EVTToAPFloatSemantics()

static const fltSemantics& llvm::SelectionDAG::EVTToAPFloatSemantics ( EVT VT )

inlinestatic

Returns an APFloat semantics tag appropriate for the given type.

If VT is a vector type, the element semantics are returned.

Definition at line 1332 of file SelectionDAG.h.

References llvm::MVT::f128, llvm::MVT::f16, llvm::MVT::f32, llvm::MVT::f64, llvm::MVT::f80, llvm::EVT::getScalarType(), llvm::EVT::getSimpleVT(), llvm::APFloatBase::IEEEdouble(), llvm::APFloatBase::IEEEhalf(), llvm::APFloatBase::IEEEquad(), llvm::APFloatBase::IEEEsingle(), llvm_unreachable, llvm::APFloatBase::PPCDoubleDouble(), llvm::MVT::ppcf128, llvm::MVT::SimpleTy, and llvm::APFloatBase::x87DoubleExtended().

Referenced by FoldIntToFPToInt(), getConstantFP(), getExpandedMinMaxOps(), GetFPLibCall(), getMemsetValue(), getNode(), llvm::ConstantFPSDNode::isValueValidForType(), LowerFABSorFNEG(), LowerFCOPYSIGN(), replaceShuffleOfInsert(), and vectorEltWillFoldAway().

◆ expandVAArg()

SDValue SelectionDAG::expandVAArg ( SDNode * Node )

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

Definition at line 1873 of file SelectionDAG.cpp.

◆ expandVACopy()

SDValue SelectionDAG::expandVACopy ( SDNode * Node )

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

Definition at line 1908 of file SelectionDAG.cpp.

Referenced by LowerVACOPY().

◆ ExtractVectorElements()

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

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.

Definition at line 9068 of file SelectionDAG.cpp.

Referenced by adjustLoadValueTypeImpl(), constructRetValue(), llvm::AMDGPUTargetLowering::LowerCONCAT_VECTORS(), llvm::AMDGPUTargetLowering::LowerSIGN_EXTEND_INREG(), parseTexFail(), and widenVectorToPartType().

◆ FoldConstantArithmetic() [1/2]

SDValue SelectionDAG::FoldConstantArithmetic	(	unsigned	Opcode,
		const SDLoc &	DL,
		EVT	VT,
		SDNode *	Cst1,
		SDNode *	Cst2
	)

Definition at line 4573 of file SelectionDAG.cpp.

References assert(), llvm::SmallVectorTemplateCommon< T >::back(), llvm::EVT::bitsGT(), llvm::EVT::bitsLT(), llvm::ISD::BUILTIN_OP_END, llvm::ISD::Constant, llvm::ISD::ConstantFP, llvm::dyn_cast(), FoldSymbolOffset(), getBuildVector(), getContext(), getNode(), llvm::SDValue::getOpcode(), llvm::SDNode::getOperand(), llvm::EVT::getScalarType(), llvm::TargetLoweringBase::getTypeToTransformTo(), getUNDEF(), llvm::SDNode::getValueType(), llvm::EVT::getVectorNumElements(), I, llvm::TargetLoweringBase::isCommutativeBinOp(), llvm::EVT::isInteger(), llvm::SDValue::isUndef(), llvm::SDNode::isUndef(), isUndef(), llvm::EVT::isVector(), NewNodesMustHaveLegalTypes, llvm::SmallVectorTemplateBase< T >::push_back(), llvm::SmallVectorImpl< T >::resize(), llvm::ISD::SIGN_EXTEND, llvm::SmallVectorBase::size(), llvm::ISD::TRUNCATE, and llvm::NVPTX::PTXLdStInstCode::V2.

Referenced by calculateByteProvider(), foldAddSubOfSignBit(), getNode(), isAnyConstantBuildVector(), isBSwapHWordElement(), simplifyDivRem(), and tryFoldToZero().

◆ FoldConstantArithmetic() [2/2]

SDValue SelectionDAG::FoldConstantArithmetic	(	unsigned	Opcode,
		const SDLoc &	DL,
		EVT	VT,
		const ConstantSDNode *	Cst1,
		const ConstantSDNode *	Cst2
	)

Definition at line 4515 of file SelectionDAG.cpp.

References FoldValue(), llvm::ConstantSDNode::getAPIntValue(), getConstant(), and llvm::ConstantSDNode::isOpaque().

◆ FoldConstantVectorArithmetic()

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

Definition at line 4662 of file SelectionDAG.cpp.

References llvm::all_of(), llvm::EVT::bitsGT(), llvm::EVT::bitsLT(), llvm::ISD::BUILTIN_OP_END, llvm::ISD::CONDCODE, llvm::ISD::Constant, llvm::ISD::ConstantFP, llvm::dyn_cast(), getBuildVector(), getContext(), getNode(), llvm::SDValue::getOpcode(), llvm::SDNode::getOperand(), llvm::EVT::getScalarType(), llvm::TargetLoweringBase::getTypeToTransformTo(), getUNDEF(), llvm::SDValue::getValueType(), llvm::EVT::getVectorNumElements(), llvm::MVT::i1, llvm::BuildVectorSDNode::isConstant(), llvm::EVT::isInteger(), llvm::SDValue::isUndef(), isUndef(), llvm::EVT::isVector(), NewNodesMustHaveLegalTypes, NewSDValueDbgMsg(), llvm::SmallVectorTemplateBase< T >::push_back(), llvm::ISD::SETCC, llvm::ISD::SIGN_EXTEND, and llvm::ISD::TRUNCATE.

Referenced by getNode(), and replaceShuffleOfInsert().

◆ 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 1946 of file SelectionDAG.cpp.

References assert(), llvm::APFloatBase::cmpEqual, llvm::APFloatBase::cmpGreaterThan, llvm::APFloatBase::cmpLessThan, llvm::APFloatBase::cmpUnordered, getBoolConstant(), getSetCC(), llvm::ISD::getSetCCSwappedOperands(), llvm::EVT::getSimpleVT(), getUNDEF(), llvm::SDValue::getValueType(), llvm::TargetLoweringBase::isCondCodeLegal(), llvm::EVT::isInteger(), LLVM_FALLTHROUGH, 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, llvm::APInt::sge(), llvm::APInt::sgt(), llvm::APInt::sle(), llvm::APInt::slt(), llvm::APInt::uge(), llvm::APInt::ugt(), llvm::APInt::ule(), and llvm::APInt::ult().

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

◆ FoldSymbolOffset()

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

Definition at line 4528 of file SelectionDAG.cpp.

References llvm::ISD::ADD, llvm::dyn_cast(), llvm::GlobalAddressSDNode::getGlobal(), getGlobalAddress(), llvm::GlobalAddressSDNode::getOffset(), llvm::SDNode::getOpcode(), llvm::ConstantSDNode::getSExtValue(), llvm::ISD::GlobalAddress, llvm::TargetLowering::isOffsetFoldingLegal(), 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 1842 of file SelectionDAG.cpp.

References llvm::FoldingSetNodeID::AddInteger(), AddNodeIDNode(), llvm::ISD::ADDRSPACECAST, E, llvm::SDLoc::getDebugLoc(), llvm::SDLoc::getIROrder(), and getVTList().

Referenced by hasOnlySelectUsers().

◆ getAllOnesConstant()

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

inline

Definition at line 566 of file SelectionDAG.h.

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

Referenced by calculateByteProvider(), combineHorizontalPredicateResult(), foldAddSubOfSignBit(), foldExtendedSignBitTest(), getBoolConstant(), getNode(), isBSwapHWordElement(), isLowerSaturatingConditional(), lowerVectorShuffleAsBitBlend(), lowerVectorShuffleAsBitMask(), matchRotateSub(), and simplifyDivRem().

◆ 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 1100 of file SelectionDAG.cpp.

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

Referenced by combineBitcast(), combineToExtendBoolVectorInReg(), createGPRPairNode(), createMMXBuildVector(), findUser(), generateEquivalentSub(), getCopyFromPartsVector(), getCopyToPartsVector(), getExpandedMinMaxOps(), getNode(), getShiftAmountTyForConstant(), isTruncateOf(), llvm::HexagonTargetLowering::LowerBITCAST(), LowerBuildVectorAsInsert(), LowerBuildVectorv16i8(), LowerMUL(), scalarizeExtractedBinop(), and ShrinkLoadReplaceStoreWithStore().

◆ getAtomic() [1/4]

SDValue SelectionDAG::getAtomic	(	unsigned	Opcode,
		const SDLoc &	dl,
		EVT	MemVT,
		SDValue	Chain,
		SDValue	Ptr,
		SDValue	Val,
		const Value *	PtrVal,
		unsigned	Alignment,
		AtomicOrdering	Ordering,
		SyncScope::ID	SSID
	)

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

Definition at line 6425 of file SelectionDAG.cpp.

References llvm::ISD::ATOMIC_LOAD, llvm::ISD::ATOMIC_STORE, getEVTAlignment(), getMachineFunction(), llvm::MachineFunction::getMachineMemOperand(), llvm::EVT::getStoreSize(), llvm::MachineMemOperand::MOLoad, llvm::MachineMemOperand::MOStore, and llvm::MachineMemOperand::MOVolatile.

Referenced by combineSetCCAtomicArith(), getAtomic(), getAtomicCmpSwap(), getExpandedMinMaxOps(), getReductionSDNode(), getShiftAmountTyForConstant(), getUniformBase(), and lowerAtomicArith().

◆ getAtomic() [2/4]

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

◆ getAtomic() [3/4]

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 6480 of file SelectionDAG.cpp.

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

◆ getAtomic() [4/4]

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 6365 of file SelectionDAG.cpp.

References llvm::FoldingSetNodeID::AddInteger(), AddNodeIDNode(), E, llvm::MachinePointerInfo::getAddrSpace(), llvm::SDLoc::getDebugLoc(), llvm::SDLoc::getIROrder(), llvm::MachineMemOperand::getPointerInfo(), and llvm::EVT::getRawBits().

◆ getAtomicCmpSwap() [1/2]

SDValue SelectionDAG::getAtomicCmpSwap	(	unsigned	Opcode,
		const SDLoc &	dl,
		EVT	MemVT,
		SDVTList	VTs,
		SDValue	Chain,
		SDValue	Ptr,
		SDValue	Cmp,
		SDValue	Swp,
		MachinePointerInfo	PtrInfo,
		unsigned	Alignment,
		AtomicOrdering	SuccessOrdering,
		AtomicOrdering	FailureOrdering,
		SyncScope::ID	SSID
	)

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 6387 of file SelectionDAG.cpp.

References assert(), llvm::ISD::ATOMIC_CMP_SWAP, llvm::ISD::ATOMIC_CMP_SWAP_WITH_SUCCESS, getEVTAlignment(), getMachineFunction(), llvm::MachineFunction::getMachineMemOperand(), llvm::EVT::getStoreSize(), llvm::SDValue::getValueType(), llvm::MachineMemOperand::MOLoad, llvm::MachineMemOperand::MOStore, and llvm::MachineMemOperand::MOVolatile.

Referenced by getExpandedMinMaxOps(), getShiftAmountTyForConstant(), and getUniformBase().

◆ getAtomicCmpSwap() [2/2]

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

Definition at line 6413 of file SelectionDAG.cpp.

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

◆ getAtomicMemcpy()

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

◆ getAtomicMemmove()

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

◆ getAtomicMemset()

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

Definition at line 6325 of file SelectionDAG.cpp.

Referenced by getUnderlyingArgReg().

◆ getBasicBlock() [1/2]

SDValue SelectionDAG::getBasicBlock ( MachineBasicBlock * MBB )

Definition at line 1470 of file SelectionDAG.cpp.

References AddNodeIDNode(), llvm::FoldingSetNodeID::AddPointer(), llvm::ISD::BasicBlock, E, getVTList(), llvm::None, and llvm::MVT::Other.

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

◆ getBasicBlock() [2/2]

SDValue llvm::SelectionDAG::getBasicBlock	(	MachineBasicBlock *	MBB,
		SDLoc	dl
	)

◆ 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 1835 of file SelectionDAG.cpp.

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

◆ getBlockAddress()

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

Definition at line 1781 of file SelectionDAG.cpp.

References llvm::FoldingSetNodeID::AddInteger(), AddNodeIDNode(), llvm::FoldingSetNodeID::AddPointer(), llvm::ISD::BlockAddress, E, getVTList(), llvm::None, and llvm::ISD::TargetBlockAddress.

Referenced by 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 1152 of file SelectionDAG.cpp.

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

Referenced by foldExtendedSignBitTest(), FoldSetCC(), getLogicalNOT(), and llvm::TargetLowering::SimplifySetCC().

◆ 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 1118 of file SelectionDAG.cpp.

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

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

◆ getBuildVector() [1/2]

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 734 of file SelectionDAG.h.

References llvm::ISD::BUILD_VECTOR.

◆ getBuildVector() [2/2]

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 743 of file SelectionDAG.h.

References llvm::ISD::BUILD_VECTOR.

◆ getCALLSEQ_END()

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 836 of file SelectionDAG.h.

References llvm::ISD::CALLSEQ_END, llvm::SDValue::getNode(), llvm::MVT::Glue, isUndef(), llvm::MVT::Other, and llvm::SmallVectorTemplateBase< T >::push_back().

◆ 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 824 of file SelectionDAG.h.

References llvm::ISD::CALLSEQ_START, llvm::MVT::Glue, and llvm::MVT::Other.

◆ 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 1719 of file SelectionDAG.cpp.

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

Referenced by lowerVectorShuffle(), and replaceShuffleOfInsert().

◆ getCondCode()

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

Definition at line 1526 of file SelectionDAG.cpp.

References N.

Referenced by getExpandedMinMaxOps(), GetFPLibCall(), lowerFCMPIntrinsic(), lowerICMPIntrinsic(), LowerVSETCC(), llvm::R600TargetLowering::ReplaceNodeResults(), and llvm::TargetLowering::softenSetCCOperands().

◆ getConstant() [1/3]

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 1167 of file SelectionDAG.cpp.

References assert(), llvm::EVT::getScalarType(), and llvm::EVT::getSizeInBits().

◆ getConstant() [2/3]

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

Definition at line 1176 of file SelectionDAG.cpp.

References llvm::ConstantInt::get(), and getConstant().

◆ getConstant() [3/3]

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

Definition at line 1181 of file SelectionDAG.cpp.

References llvm::FoldingSetNodeID::AddBoolean(), AddNodeIDNode(), llvm::FoldingSetNodeID::AddPointer(), assert(), llvm::ISD::BITCAST, llvm::ISD::Constant, llvm::SmallVectorTemplateCommon< T >::end(), llvm::ConstantInt::get(), llvm::ConstantInt::getBitWidth(), getBuildVector(), getConstant(), getContext(), getDataLayout(), getNode(), llvm::EVT::getScalarType(), llvm::EVT::getSizeInBits(), getSplatBuildVector(), llvm::TargetLoweringBase::getTypeAction(), llvm::TargetLoweringBase::getTypeToTransformTo(), llvm::ConstantInt::getValue(), llvm::EVT::getVectorNumElements(), llvm::EVT::getVectorVT(), getVTList(), llvm::SmallVectorImpl< T >::insert(), llvm::DataLayout::isBigEndian(), llvm::EVT::isInteger(), llvm::EVT::isVector(), llvm::APInt::lshr(), NewNodesMustHaveLegalTypes, NewSDValueDbgMsg(), llvm::None, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::reverse(), llvm::ISD::TargetConstant, llvm::TargetLoweringBase::TypeExpandInteger, llvm::TargetLoweringBase::TypePromoteInteger, and llvm::APInt::zextOrTrunc().

◆ 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 7869 of file SelectionDAG.cpp.

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

Referenced by getUnderlyingArgReg().

◆ getConstantFP() [1/3]

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 1314 of file SelectionDAG.cpp.

References llvm::lltok::APFloat, llvm::APFloat::convert(), EVTToAPFloatSemantics(), llvm::MVT::f128, llvm::MVT::f16, llvm::MVT::f32, llvm::MVT::f64, llvm::MVT::f80, llvm::EVT::getScalarType(), llvm_unreachable, llvm::MVT::ppcf128, and llvm::APFloatBase::rmNearestTiesToEven.

◆ getConstantFP() [2/3]

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

Definition at line 1277 of file SelectionDAG.cpp.

References llvm::ConstantFP::get(), getConstantFP(), and getContext().

◆ getConstantFP() [3/3]

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

Definition at line 1282 of file SelectionDAG.cpp.

References AddNodeIDNode(), llvm::FoldingSetNodeID::AddPointer(), assert(), llvm::ISD::ConstantFP, llvm::EVT::getScalarType(), getSplatBuildVector(), getVTList(), llvm::EVT::isFloatingPoint(), llvm::EVT::isVector(), NewSDValueDbgMsg(), llvm::None, and llvm::ISD::TargetConstantFP.

◆ getConstantPool() [1/2]

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

◆ getConstantPool() [2/2]

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

Definition at line 1427 of file SelectionDAG.cpp.

References llvm::FoldingSetNodeID::AddInteger(), AddNodeIDNode(), llvm::MachineConstantPoolValue::addSelectionDAGCSEId(), assert(), C, llvm::ISD::ConstantPool, E, getDataLayout(), llvm::DataLayout::getPrefTypeAlignment(), llvm::MachineConstantPoolValue::getType(), getVTList(), llvm::None, and llvm::ISD::TargetConstantPool.

◆ getContext()

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

inline

Definition at line 407 of file SelectionDAG.h.

References Context.

◆ getCopyFromReg() [1/2]

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

inline

Definition at line 705 of file SelectionDAG.h.

References llvm::ISD::CopyFromReg, and llvm::MVT::Other.

◆ getCopyFromReg() [2/2]

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

inline

Definition at line 714 of file SelectionDAG.h.

References llvm::ISD::CopyFromReg, getCondCode(), llvm::SDValue::getNode(), llvm::MVT::Glue, llvm::makeArrayRef(), llvm::BitmaskEnumDetail::Mask(), and llvm::MVT::Other.

◆ getCopyToReg() [1/3]

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

inline

Definition at line 679 of file SelectionDAG.h.

References llvm::ISD::CopyToReg, llvm::SDValue::getValueType(), and llvm::MVT::Other.

◆ getCopyToReg() [2/3]

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

inline

Definition at line 688 of file SelectionDAG.h.

References llvm::ISD::CopyToReg, llvm::SDValue::getNode(), llvm::SDValue::getValueType(), llvm::MVT::Glue, llvm::makeArrayRef(), and llvm::MVT::Other.

◆ getCopyToReg() [3/3]

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

inline

Definition at line 697 of file SelectionDAG.h.

References llvm::ISD::CopyToReg, llvm::SDValue::getNode(), llvm::MVT::Glue, llvm::makeArrayRef(), N, llvm::MVT::Other, and Reg.

◆ getDataLayout()

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

inline

Definition at line 401 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 8004 of file SelectionDAG.cpp.

References assert(), DAGUpdateListener, E, and llvm::SDDbgInfo::getAlloc().

Referenced by getUnderlyingArgReg().

◆ 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 7859 of file SelectionDAG.cpp.

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

Referenced by getUnderlyingArgReg(), 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 1352 of file SelectionDAG.h.

References llvm::SDDbgInfo::getSDDbgValues().

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

◆ GetDemandedBits()

SDValue SelectionDAG::GetDemandedBits	(	SDValue	V,
		const APInt &	Mask
	)

See if the specified operand can be simplified with the knowledge that only the bits specified by Mask are used.

If so, return the simpler operand, otherwise return a null SDValue.

(This exists alongside SimplifyDemandedBits because GetDemandedBits can simplify nodes with multiple uses more aggressively.)

Definition at line 2066 of file SelectionDAG.cpp.

References llvm::ISD::AND, llvm::ISD::ANY_EXTEND, assert(), llvm::ISD::Constant, llvm::APInt::getActiveBits(), llvm::ConstantSDNode::getAPIntValue(), llvm::APInt::getBitWidth(), getConstant(), llvm::SDValue::getNode(), getNode(), llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), llvm::EVT::getScalarSizeInBits(), llvm::SDValue::getScalarValueSizeInBits(), llvm::SDValue::getValueType(), llvm::SDNode::hasOneUse(), llvm::isConstOrConstSplat(), llvm::APInt::isSubsetOf(), llvm::BitmaskEnumDetail::Mask(), MaskedValueIsZero(), llvm::ISD::OR, llvm::ISD::SIGN_EXTEND_INREG, llvm::ISD::SRL, llvm::APInt::trunc(), and llvm::ISD::XOR.

Referenced by combineBT(), combinePMULDQ(), isTruncateOf(), ShrinkLoadReplaceStoreWithStore(), and simplifyI24().

◆ getEHLabel()

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

Definition at line 1758 of file SelectionDAG.cpp.

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

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

◆ getEntryNode()

SDValue llvm::SelectionDAG::getEntryNode ( ) const

inline

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

Definition at line 460 of file SelectionDAG.h.

◆ getEVTAlignment()

unsigned SelectionDAG::getEVTAlignment ( EVT MemoryVT ) const

Compute the default alignment value for the given type.

Definition at line 985 of file SelectionDAG.cpp.

References llvm::PointerType::get(), llvm::DataLayout::getABITypeAlignment(), getContext(), getDataLayout(), llvm::Type::getInt8Ty(), llvm::EVT::getTypeForEVT(), and llvm::MVT::iPTR.

Referenced by getAtomic(), getAtomicCmpSwap(), getLoad(), getMemIntrinsicNode(), getStore(), getTruncStore(), getUniformBase(), and hasOnlySelectUsers().

◆ getExternalSymbol() [1/2]

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

Definition at line 1498 of file SelectionDAG.cpp.

Referenced by llvm::MipsTargetLowering::EmitInstrWithCustomInserter(), llvm::ARMSelectionDAGInfo::EmitSpecializedLibcall(), llvm::XCoreSelectionDAGInfo::EmitTargetCodeForMemcpy(), llvm::AArch64SelectionDAGInfo::EmitTargetCodeForMemset(), llvm::X86SelectionDAGInfo::EmitTargetCodeForMemset(), getAtomicMemcpy(), getAtomicMemmove(), getAtomicMemset(), getDivRemArgList(), getExpandedMinMaxOps(), llvm::ARMTargetLowering::getJumpTableEncoding(), getMemCmpLoad(), getMemcpy(), getMemmove(), getMemset(), llvm::AVRTargetLowering::getSetCCResultType(), getUnderlyingArgReg(), isWordAligned(), LowerADDSUBCARRY(), llvm::SparcTargetLowering::LowerF128Compare(), llvm::SparcTargetLowering::LowerF128Op(), LowerFPOWI(), LowerFSINCOS(), LowerMULH(), llvm::TargetLowering::LowerToTLSEmulatedModel(), LowerToTLSExecModel(), LowerVectorINT_TO_FP(), and llvm::TargetLowering::makeLibCall().

◆ getExternalSymbol() [2/2]

SDValue llvm::SelectionDAG::getExternalSymbol	(	const char *	Sym,
		const SDLoc &	dl,
		EVT	VT
	)

◆ getExtLoad() [1/2]

SDValue SelectionDAG::getExtLoad	(	ISD::LoadExtType	ExtType,
		const SDLoc &	dl,
		EVT	VT,
		SDValue	Chain,
		SDValue	Ptr,
		MachinePointerInfo	PtrInfo,
		EVT	MemVT,
		unsigned	Alignment = `0`,
		MachineMemOperand::Flags	MMOFlags = `MachineMemOperand::MONone`,
		const AAMDNodes &	AAInfo = `AAMDNodes()`
	)

Definition at line 6690 of file SelectionDAG.cpp.

References getLoad(), getUNDEF(), llvm::SDValue::getValueType(), llvm::RegState::Undef, and llvm::ISD::UNINDEXED.

Referenced by adjustSubwordCmp(), llvm::AArch64TargetLowering::CCAssignFnForReturn(), ConstantAddressBlock(), llvm::TargetLowering::expandUnalignedLoad(), llvm::TargetLowering::expandUnalignedStore(), ExtendUsesToFormExtLoad(), foldExtendedSignBitTest(), FoldIntToFPToInt(), getExpandedMinMaxOps(), GetFPLibCall(), getLoadExtOrTrunc(), getMemcpyLoadsAndStores(), getShiftAmountTyForConstant(), llvm::MipsTargetLowering::getTypeForExtReturn(), getVectorCompareInfo(), isAnyConstantBuildVector(), isTruncateOf(), llvm::SITargetLowering::isTypeDesirableForOp(), isWordAligned(), LowerLoad(), LowerToTLSExecModel(), lowerUINT_TO_FP_vec(), numVectorEltsOrZero(), PrepareCall(), llvm::SparcTargetLowering::ReplaceNodeResults(), replaceShuffleOfInsert(), llvm::TargetLowering::scalarizeVectorLoad(), ShrinkLoadReplaceStoreWithStore(), simplifyDivRem(), SkipLoadExtensionForVMULL(), llvm::AMDGPUTargetLowering::SplitVectorLoad(), tryToFoldExtOfExtload(), tryToFoldExtOfLoad(), and unpackFromMemLoc().

◆ getExtLoad() [2/2]

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

Definition at line 6701 of file SelectionDAG.cpp.

References getLoad(), getUNDEF(), llvm::SDValue::getValueType(), llvm::RegState::Undef, and llvm::ISD::UNINDEXED.

◆ 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 1094 of file SelectionDAG.cpp.

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

Referenced by getCopyFromPartsVector(), and LowerUINT_TO_FP_i32().

◆ getFrameIndex()

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

Definition at line 1365 of file SelectionDAG.cpp.

References llvm::FoldingSetNodeID::AddInteger(), AddNodeIDNode(), E, llvm::ISD::FrameIndex, getVTList(), llvm::None, and llvm::ISD::TargetFrameIndex.

◆ getFrameIndexDbgValue()

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 7879 of file SelectionDAG.cpp.

References assert(), llvm::SDDbgValue::FRAMEIX, and llvm::SDDbgInfo::getAlloc().

Referenced by getUnderlyingArgReg().

◆ 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 857 of file SelectionDAG.h.

References llvm::AMDGPU::HSAMD::Kernel::Arg::Key::Align, llvm::ISD::GLOBAL_OFFSET_TABLE, and Size.

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 char	TargetFlags = `0`
	)

◆ getGraphAttrs()

const 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 194 of file SelectionDAGPrinter.cpp.

References llvm::errs(), and I.

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

◆ getIndexedLoad()

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

◆ getIndexedStore()

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

◆ getIntPtrConstant()

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

Definition at line 1272 of file SelectionDAG.cpp.

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

◆ getJumpTable()

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

Definition at line 1380 of file SelectionDAG.cpp.

References llvm::FoldingSetNodeID::AddInteger(), AddNodeIDNode(), assert(), E, getVTList(), llvm::ISD::JumpTable, llvm::None, and llvm::ISD::TargetJumpTable.

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

◆ getLabelNode()

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

Definition at line 1763 of file SelectionDAG.cpp.

References AddNodeIDNode(), llvm::FoldingSetNodeID::AddPointer(), E, llvm::SDLoc::getDebugLoc(), llvm::SDLoc::getIROrder(), getVTList(), and llvm::MVT::Other.

Referenced by getEHLabel(), and getUnderlyingArgReg().

◆ getLibInfo()

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

inline

Definition at line 405 of file SelectionDAG.h.

Referenced by CanCombineFCOPYSIGN_EXTEND_ROUND().

◆ getLoad() [1/4]

SDValue SelectionDAG::getLoad	(	EVT	VT,
		const SDLoc &	dl,
		SDValue	Chain,
		SDValue	Ptr,
		MachinePointerInfo	PtrInfo,
		unsigned	Alignment = `0`,
		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 6673 of file SelectionDAG.cpp.

References getUNDEF(), llvm::SDValue::getValueType(), llvm::ISD::NON_EXTLOAD, llvm::RegState::Undef, and llvm::ISD::UNINDEXED.

◆ getLoad() [2/4]

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

Definition at line 6683 of file SelectionDAG.cpp.

References getLoad(), getUNDEF(), llvm::SDValue::getValueType(), llvm::ISD::NON_EXTLOAD, llvm::RegState::Undef, and llvm::ISD::UNINDEXED.

◆ getLoad() [3/4]

SDValue SelectionDAG::getLoad	(	ISD::MemIndexedMode	AM,
		ISD::LoadExtType	ExtType,
		EVT	VT,
		const SDLoc &	dl,
		SDValue	Chain,
		SDValue	Ptr,
		SDValue	Offset,
		MachinePointerInfo	PtrInfo,
		EVT	MemVT,
		unsigned	Alignment = `0`,
		MachineMemOperand::Flags	MMOFlags = `MachineMemOperand::MONone`,
		const AAMDNodes &	AAInfo = `AAMDNodes()`,
		const MDNode *	Ranges = `nullptr`
	)

Definition at line 6599 of file SelectionDAG.cpp.

References assert(), getEVTAlignment(), getLoad(), getMachineFunction(), llvm::MachineFunction::getMachineMemOperand(), llvm::EVT::getStoreSize(), llvm::SDValue::getValueType(), InferPointerInfo(), llvm::PointerUnion< PT1, PT2 >::isNull(), llvm::MachineMemOperand::MOLoad, llvm::MachineMemOperand::MOStore, llvm::MVT::Other, and llvm::MachinePointerInfo::V.

◆ getLoad() [4/4]

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

◆ getLogicalNOT()

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

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

Definition at line 1147 of file SelectionDAG.cpp.

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

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

◆ getMachineFunction()

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

inline

Definition at line 398 of file SelectionDAG.h.

◆ getMachineNode() [1/13]

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 7704 of file SelectionDAG.cpp.

References getVTList(), and llvm::None.

◆ getMachineNode() [2/13]

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

Definition at line 7710 of file SelectionDAG.cpp.

References getMachineNode(), and getVTList().

◆ getMachineNode() [3/13]

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

Definition at line 7717 of file SelectionDAG.cpp.

References getMachineNode(), and getVTList().

◆ getMachineNode() [4/13]

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

Definition at line 7724 of file SelectionDAG.cpp.

References getMachineNode(), and getVTList().

◆ getMachineNode() [5/13]

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

Definition at line 7732 of file SelectionDAG.cpp.

References getMachineNode(), and getVTList().

◆ getMachineNode() [6/13]

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

Definition at line 7738 of file SelectionDAG.cpp.

References getMachineNode(), and getVTList().

◆ getMachineNode() [7/13]

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

Definition at line 7746 of file SelectionDAG.cpp.

References getMachineNode(), and getVTList().

◆ getMachineNode() [8/13]

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

Definition at line 7754 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 7761 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 7769 of file SelectionDAG.cpp.

References getMachineNode(), and getVTList().

◆ getMachineNode() [11/13]

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

Definition at line 7778 of file SelectionDAG.cpp.

References getMachineNode(), and getVTList().

◆ getMachineNode() [12/13]

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

Definition at line 7785 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 7792 of file SelectionDAG.cpp.

References AddNodeIDNode(), E, llvm::SDLoc::getDebugLoc(), llvm::SDLoc::getIROrder(), llvm::MVT::Glue, N, llvm::SDVTList::NumVTs, and llvm::SDVTList::VTs.

◆ getMaskedGather()

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

◆ getMaskedLoad()

SDValue SelectionDAG::getMaskedLoad	(	EVT	VT,
		const SDLoc &	dl,
		SDValue	Chain,
		SDValue	Ptr,
		SDValue	Mask,
		SDValue	Src0,
		EVT	MemVT,
		MachineMemOperand *	MMO,
		ISD::LoadExtType	ExtTy,
		bool	IsExpanding = `false`
	)

◆ getMaskedScatter()

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

Definition at line 6969 of file SelectionDAG.cpp.

References AddNodeIDNode(), assert(), E, llvm::MachinePointerInfo::getAddrSpace(), llvm::SDLoc::getDebugLoc(), llvm::SDLoc::getIROrder(), llvm::MachineMemOperand::getPointerInfo(), llvm::EVT::getRawBits(), llvm::SDNode::getValueType(), llvm::EVT::getVectorNumElements(), llvm::ISD::MSCATTER, NewSDValueDbgMsg(), and llvm::ArrayRef< T >::size().

Referenced by ConvertSelectToConcatVector(), getUniformBase(), isSETCCorConvertedSETCC(), and LowerMSCATTER().

◆ getMaskedStore()

SDValue SelectionDAG::getMaskedStore	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Val,
		SDValue	Ptr,
		SDValue	Mask,
		EVT	MemVT,
		MachineMemOperand *	MMO,
		bool	IsTruncating = `false`,
		bool	IsCompressing = `false`
	)

◆ getMCSymbol()

SDValue SelectionDAG::getMCSymbol	(	MCSymbol *	Sym,
		EVT	VT
	)

Definition at line 1506 of file SelectionDAG.cpp.

Referenced by CallingConvSupported(), getUnderlyingArgReg(), and recoverFramePointer().

◆ getMDNode()

SDValue SelectionDAG::getMDNode ( const MDNode * MD )

Return an MDNodeSDNode which holds an MDNode.

Definition at line 1820 of file SelectionDAG.cpp.

References AddNodeIDNode(), llvm::FoldingSetNodeID::AddPointer(), E, getVTList(), llvm::ISD::MDNODE_SDNODE, llvm::None, and llvm::MVT::Other.

Referenced by findMatchingInlineAsmOperand(), and getUnderlyingArgReg().

◆ getMemBasePlusOffset()

SDValue SelectionDAG::getMemBasePlusOffset	(	SDValue	Base,
		unsigned	Offset,
		const SDLoc &	DL
	)

Returns sum of the base pointer and offset.

Definition at line 5499 of file SelectionDAG.cpp.

References llvm::ISD::ADD, getConstant(), getNode(), and llvm::SDValue::getValueType().

Referenced by combineLoad(), combineStore(), getMemcpyLoadsAndStores(), getMemmoveLoadsAndStores(), getParamsForOneTrueMaskedElt(), lowerUINT_TO_FP_vec(), llvm::HexagonTargetLowering::LowerUnalignedLoad(), lowerVectorShuffleAsBroadcast(), and narrowExtractedVectorLoad().

◆ getMemcpy()

SDValue SelectionDAG::getMemcpy	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Dst,
		SDValue	Src,
		SDValue	Size,
		unsigned	Align,
		bool	isVol,
		bool	AlwaysInline,
		bool	isTailCall,
		MachinePointerInfo	DstPtrInfo,
		MachinePointerInfo	SrcPtrInfo
	)

Definition at line 6047 of file SelectionDAG.cpp.

Referenced by AnalyzeReturnValues(), CallingConvSupported(), CC_Lanai32_VarArg(), CreateCopyOfByValArgument(), llvm::X86SelectionDAGInfo::EmitTargetCodeForMemcpy(), getMemCmpLoad(), llvm::MipsTargetLowering::getTypeForExtReturn(), getUnderlyingArgReg(), llvm::SITargetLowering::LowerCall(), llvm::SparcTargetLowering::LowerCall_32(), lowerCallResult(), LowerCallResult(), LowerVACOPY(), mayTailCallThisCC(), and unpackF64OnRV32DSoftABI().

◆ getMemIntrinsicNode() [1/2]

SDValue SelectionDAG::getMemIntrinsicNode	(	unsigned	Opcode,
		const SDLoc &	dl,
		SDVTList	VTList,
		ArrayRef< SDValue >	Ops,
		EVT	MemVT,
		MachinePointerInfo	PtrInfo,
		unsigned	Align = `0`,
		MachineMemOperand::Flags	Flags = `MachineMemOperand::MOLoad \| MachineMemOperand::MOStore`,
		unsigned	Size = `0`
	)

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 6502 of file SelectionDAG.cpp.

References getEVTAlignment(), getMachineFunction(), llvm::MachineFunction::getMachineMemOperand(), and llvm::EVT::getStoreSize().

Referenced by adjustLoadValueTypeImpl(), llvm::X86TargetLowering::BuildFILD(), CombineBaseUpdate(), combineBVOfVecSExt(), CombineVLDDUP(), createLoadLR(), createStoreLR(), EltsFromConsecutiveLoads(), llvm::PPCTargetLowering::expandVSXLoadForLE(), llvm::PPCTargetLowering::expandVSXStoreForLE(), getFPTernOp(), getTOCEntry(), getUnderlyingArgReg(), getUniformBase(), getVectorCompareInfo(), haveEfficientBuildVectorPattern(), LowerADJUST_TRAMPOLINE(), lowerAtomicArithWithLOCK(), llvm::NVPTXTargetLowering::LowerCall(), LowerCMP_SWAP(), llvm::SystemZTargetLowering::LowerOperationWrapper(), llvm::NVPTXTargetLowering::LowerReturn(), lowerUINT_TO_FP_vec(), parseTexFail(), llvm::PPCTargetLowering::PerformDAGCombine(), performNEONPostLDSTCombine(), performPostLD1Combine(), PerformVDUPCombine(), PrepareCall(), ReplaceINTRINSIC_W_CHAIN(), ReplaceLoadVector(), llvm::R600TargetLowering::ReplaceNodeResults(), llvm::X86TargetLowering::ReplaceNodeResults(), and widenVec().

◆ getMemIntrinsicNode() [2/2]

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

◆ getMemmove()

SDValue SelectionDAG::getMemmove	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Dst,
		SDValue	Src,
		SDValue	Size,
		unsigned	Align,
		bool	isVol,
		bool	isTailCall,
		MachinePointerInfo	DstPtrInfo,
		MachinePointerInfo	SrcPtrInfo
	)

Definition at line 6161 of file SelectionDAG.cpp.

Referenced by llvm::XCoreTargetLowering::EmitInstrWithCustomInserter(), and getUnderlyingArgReg().

◆ getMemset()

SDValue SelectionDAG::getMemset	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Dst,
		SDValue	Src,
		SDValue	Size,
		unsigned	Align,
		bool	isVol,
		bool	isTailCall,
		MachinePointerInfo	DstPtrInfo
	)

Definition at line 6263 of file SelectionDAG.cpp.

Referenced by llvm::X86SelectionDAGInfo::EmitTargetCodeForMemset(), and getUnderlyingArgReg().

◆ 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 6491 of file SelectionDAG.cpp.

References getNode(), getVTList(), llvm::ISD::MERGE_VALUES, llvm::SmallVectorTemplateBase< T >::push_back(), llvm::SmallVectorImpl< T >::reserve(), and llvm::ArrayRef< T >::size().

Referenced by adjustLoadValueTypeImpl(), ConstantAddressBlock(), constructRetValue(), ConvertSelectToConcatVector(), llvm::MipsSETargetLowering::EmitInstrWithCustomInserter(), llvm::XCoreTargetLowering::EmitInstrWithCustomInserter(), findMatchingInlineAsmOperand(), findUser(), getDivRemArgList(), getFPTernOp(), llvm::XCoreTargetLowering::getJumpTableEncoding(), getLoadExtOrTrunc(), llvm::SelectionDAGBuilder::getValueImpl(), getVectorCompareInfo(), llvm::SITargetLowering::isTypeDesirableForOp(), isWordAligned(), LowerADDC_ADDE_SUBC_SUBE(), llvm::HexagonTargetLowering::LowerAddSubCarry(), llvm::AMDGPUTargetLowering::LowerDIVREM24(), lowerDSPIntr(), llvm::LanaiTargetLowering::LowerDYNAMIC_STACKALLOC(), llvm::AMDGPUTargetLowering::LowerDYNAMIC_STACKALLOC(), LowerDYNAMIC_STACKALLOC(), LowerF128Load(), lowerFCOPYSIGN64(), LowerINTRINSIC_W_CHAIN(), llvm::MipsTargetLowering::lowerLOAD(), LowerLoad(), LowerMGATHER(), LowerMLOAD(), llvm::NVPTXTargetLowering::LowerOperation(), llvm::SelectionDAGBuilder::lowerRangeToAssertZExt(), llvm::AMDGPUTargetLowering::LowerSDIVREM(), LowerShiftParts(), llvm::LanaiTargetLowering::LowerSHL_PARTS(), llvm::LanaiTargetLowering::LowerSRL_PARTS(), llvm::AMDGPUTargetLowering::LowerUDIVREM(), lowerUINT_TO_FP_vec(), LowerUMULO_SMULO(), llvm::HexagonTargetLowering::LowerUnalignedLoad(), mayTailCallThisCC(), parseTexFail(), llvm::AMDGPUTargetLowering::performLoadCombine(), llvm::AMDGPUTargetLowering::performMulLoHi24Combine(), PrepareCall(), recoverFramePointer(), ReorganizeVector(), llvm::TargetLowering::scalarizeVectorLoad(), llvm::AMDGPUTargetLowering::SplitVectorLoad(), and widenVec().

◆ getNode() [1/16]

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

Gets or creates the specified node.

Definition at line 7066 of file SelectionDAG.cpp.

References llvm::ArrayRef< T >::begin(), llvm::ArrayRef< T >::end(), and llvm::ArrayRef< T >::size().

◆ getNode() [2/16]

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

Definition at line 7082 of file SelectionDAG.cpp.

References AddNodeIDNode(), assert(), llvm::ISD::BR_CC, llvm::ISD::BUILD_VECTOR, llvm::ISD::CONCAT_VECTORS, E, FoldBUILD_VECTOR(), FoldCONCAT_VECTORS(), llvm::SDLoc::getDebugLoc(), llvm::SDLoc::getIROrder(), getNode(), getValueType(), getVTList(), llvm::MVT::Glue, N, NewSDValueDbgMsg(), llvm::ISD::SELECT_CC, and llvm::ArrayRef< T >::size().

◆ getNode() [3/16]

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

Definition at line 7148 of file SelectionDAG.cpp.

References getNode(), and getVTList().

◆ getNode() [4/16]

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

Definition at line 7153 of file SelectionDAG.cpp.

References AddNodeIDNode(), llvm::ISD::AND, E, llvm::SDLoc::getDebugLoc(), llvm::SDLoc::getIROrder(), getNode(), llvm::MVT::Glue, llvm::MVT::i1, N, NewSDValueDbgMsg(), llvm::SDVTList::NumVTs, llvm::ISD::SHL_PARTS, llvm::ISD::SIGN_EXTEND_INREG, llvm::ISD::SRA_PARTS, llvm::ISD::SRL_PARTS, and llvm::SDVTList::VTs.

◆ getNode() [5/16]

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

Gets or creates the specified node.

Definition at line 4068 of file SelectionDAG.cpp.

References AddNodeIDNode(), E, llvm::SDLoc::getDebugLoc(), llvm::SDLoc::getIROrder(), getVTList(), NewSDValueDbgMsg(), and llvm::None.

◆ getNode() [6/16]

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

Definition at line 4085 of file SelectionDAG.cpp.

◆ getNode() [7/16]

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

Definition at line 4758 of file SelectionDAG.cpp.

References llvm::ISD::ADD, llvm::APFloat::add(), AddNodeIDNode(), llvm::ISD::AND, llvm::APInt::ashrInPlace(), assert(), llvm::ISD::AssertSext, llvm::ISD::AssertZext, llvm::EVT::bitsLE(), llvm::ISD::BUILD_PAIR, llvm::ISD::BUILD_VECTOR, C, llvm::ISD::CONCAT_VECTORS, llvm::APFloat::convert(), llvm::APFloat::copySign(), llvm::APFloat::divide(), llvm::dyn_cast(), E, llvm::ISD::EntryToken, EVTToAPFloatSemantics(), llvm::ISD::EXTRACT_ELEMENT, llvm::ISD::EXTRACT_SUBVECTOR, llvm::ISD::EXTRACT_VECTOR_ELT, llvm::ISD::FADD, llvm::ISD::FCOPYSIGN, llvm::ISD::FDIV, llvm::ISD::FMUL, FoldBUILD_VECTOR(), FoldCONCAT_VECTORS(), FoldConstantArithmetic(), llvm::ISD::FP_ROUND, llvm::ISD::FP_ROUND_INREG, llvm::ISD::FREM, llvm::ISD::FSUB, getAllOnesConstant(), getAnyExtOrTrunc(), llvm::ConstantSDNode::getAPIntValue(), llvm::APInt::getBitWidth(), getBuildVector(), getConstant(), getConstantFP(), llvm::SDLoc::getDebugLoc(), llvm::SDLoc::getIROrder(), llvm::APFloat::getNaN(), llvm::SDValue::getNode(), getNode(), llvm::SDValue::getNumOperands(), llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), llvm::EVT::getScalarSizeInBits(), llvm::EVT::getScalarType(), getSExtOrTrunc(), llvm::SDValue::getSimpleValueType(), llvm::EVT::getSimpleVT(), llvm::EVT::getSizeInBits(), getUNDEF(), llvm::SDValue::getValueSizeInBits(), llvm::SDValue::getValueType(), llvm::EVT::getVectorElementType(), llvm::EVT::getVectorNumElements(), getVTList(), llvm::ConstantSDNode::getZExtValue(), llvm::MVT::Glue, llvm::TargetLoweringBase::hasFloatingPointExceptions(), llvm::MVT::i1, llvm::ISD::INSERT_SUBVECTOR, llvm::ISD::INSERT_VECTOR_ELT, llvm::ISD::isBuildVectorOfConstantSDNodes(), llvm::TargetLoweringBase::isCommutativeBinOp(), llvm::EVT::isFloatingPoint(), llvm::EVT::isInteger(), llvm::EVT::isSimple(), llvm::SDValue::isUndef(), llvm::EVT::isVector(), LLVM_FALLTHROUGH, llvm::Log2_32_Ceil(), llvm::APInt::lshr(), llvm::APFloat::mod(), llvm::ISD::MUL, llvm::ISD::MULHS, llvm::ISD::MULHU, llvm::APFloat::multiply(), N, NewSDValueDbgMsg(), llvm::APFloatBase::opDivByZero, llvm::APFloatBase::opInvalidOp, llvm::ISD::OR, llvm::MVT::Other, llvm::SmallVectorTemplateBase< T >::push_back(), llvm::APFloatBase::rmNearestTiesToEven, llvm::ISD::ROTL, llvm::ISD::ROTR, llvm::ISD::SADDSAT, llvm::ISD::SDIV, llvm::SDNode::setFlags(), llvm::ISD::SHL, llvm::ISD::SIGN_EXTEND_INREG, simplifyShift(), llvm::ISD::SMAX, llvm::ISD::SMIN, llvm::ISD::SRA, llvm::ISD::SREM, llvm::ISD::SRL, llvm::ISD::SSUBSAT, llvm::ISD::SUB, llvm::APFloat::subtract(), std::swap(), llvm::ISD::TokenFactor, llvm::APInt::trunc(), llvm::ISD::UADDSAT, llvm::ISD::UDIV, llvm::ISD::UMAX, llvm::ISD::UMIN, llvm::ISD::UREM, llvm::ISD::USUBSAT, llvm::NVPTX::PTXLdStInstCode::V2, and llvm::ISD::XOR.

◆ getNode() [8/16]

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

Definition at line 5248 of file SelectionDAG.cpp.

References AddNodeIDNode(), assert(), llvm::ISD::BITCAST, llvm::ISD::BUILD_VECTOR, llvm::ISD::CONCAT_VECTORS, llvm::dyn_cast(), E, llvm::ISD::FMA, FoldBUILD_VECTOR(), FoldCONCAT_VECTORS(), FoldConstantVectorArithmetic(), FoldSetCC(), llvm::APFloat::fusedMultiplyAdd(), getConstantFP(), llvm::SDLoc::getDebugLoc(), llvm::SDLoc::getIROrder(), llvm::SDValue::getSimpleValueType(), llvm::EVT::getSimpleVT(), getUNDEF(), llvm::SDValue::getValueType(), llvm::EVT::getVectorNumElements(), getVTList(), llvm::ConstantSDNode::getZExtValue(), llvm::MVT::Glue, llvm::TargetLoweringBase::hasFloatingPointExceptions(), llvm::ISD::INSERT_SUBVECTOR, llvm::ISD::INSERT_VECTOR_ELT, llvm::EVT::isFloatingPoint(), llvm::EVT::isInteger(), llvm::EVT::isSimple(), llvm::EVT::isVector(), llvm_unreachable, N, NewSDValueDbgMsg(), llvm::APFloatBase::opInvalidOp, llvm::APFloatBase::rmNearestTiesToEven, llvm::ISD::SELECT, llvm::ISD::SETCC, llvm::SDNode::setFlags(), simplifySelect(), llvm::NVPTX::PTXLdStInstCode::V2, llvm::ISD::VECTOR_SHUFFLE, and llvm::ISD::VSELECT.

◆ getNode() [9/16]

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

Definition at line 5378 of file SelectionDAG.cpp.

References getNode().

◆ getNode() [10/16]

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

Definition at line 5384 of file SelectionDAG.cpp.

References getNode().

◆ getNode() [11/16]

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

Definition at line 7203 of file SelectionDAG.cpp.

References getNode(), and llvm::None.

◆ getNode() [12/16]

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

Definition at line 7208 of file SelectionDAG.cpp.

References getNode().

◆ getNode() [13/16]

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

Definition at line 7214 of file SelectionDAG.cpp.

References getNode().

◆ getNode() [14/16]

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

Definition at line 7220 of file SelectionDAG.cpp.

References getNode().

◆ getNode() [15/16]

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

Definition at line 7226 of file SelectionDAG.cpp.

References getNode().

◆ getNode() [16/16]

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

Definition at line 7232 of file SelectionDAG.cpp.

References getNode().

◆ getNodeIfExists()

SDNode * SelectionDAG::getNodeIfExists	(	unsigned	Opcode,
		SDVTList	VTList,
		ArrayRef< SDValue >	Ops,
		const SDNodeFlags	Flags = `SDNodeFlags()`
	)

Get the specified node if it's already available, or else return NULL.

getNodeIfExists - Get the specified node if it's already available, or else return NULL.

Definition at line 7841 of file SelectionDAG.cpp.

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

Referenced by EmitTest(), and simplifyDivRem().

◆ 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 1140 of file SelectionDAG.cpp.

References llvm::APInt::getAllOnesValue(), getConstant(), getNode(), llvm::EVT::getScalarType(), llvm::EVT::getSizeInBits(), and llvm::ISD::XOR.

Referenced by calculateByteProvider(), combineMinNumMaxNum(), combineSelectOfTwoConstants(), combineSetCC(), combineVSelectWithAllOnesOrZeros(), EmitVectorComparison(), findUser(), foldAddSubOfSignBit(), foldExtendedSignBitTest(), llvm::TargetLowering::isExtendedTrueVal(), isTruncWithZeroHighBitsInput(), LowerADDSAT_SUBSAT(), llvm::AMDGPUTargetLowering::LowerFROUND64(), llvm::AMDGPUTargetLowering::LowerFTRUNC(), lowerMSABitClear(), lowerMSABitClearImm(), LowerVSETCC(), llvm::R600TargetLowering::ReplaceNodeResults(), replaceShuffleOfInsert(), llvm::TargetLowering::SimplifyDemandedBits(), and llvm::TargetLowering::SimplifySetCC().

◆ getObjectPtrOffset() [1/2]

SDValue llvm::SelectionDAG::getObjectPtrOffset	(	const SDLoc &	SL,
		SDValue	Op,
		int64_t	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 806 of file SelectionDAG.h.

References getConstant(), and llvm::SDValue::getValueType().

Referenced by llvm::TargetLowering::expandUnalignedLoad(), llvm::TargetLowering::expandUnalignedStore(), findUnwindDestinations(), findUser(), getExpandedMinMaxOps(), llvm::SITargetLowering::isTypeDesirableForOp(), llvm::TargetLowering::scalarizeVectorLoad(), llvm::TargetLowering::scalarizeVectorStore(), llvm::AMDGPUTargetLowering::SplitVectorLoad(), and llvm::AMDGPUTargetLowering::SplitVectorStore().

◆ getObjectPtrOffset() [2/2]

SDValue llvm::SelectionDAG::getObjectPtrOffset	(	const SDLoc &	SL,
		SDValue	Op,
		SDValue	Offset
	)

inline

Definition at line 811 of file SelectionDAG.h.

References llvm::ISD::ADD, llvm::SDValue::getValueType(), and llvm::SDNodeFlags::setNoUnsignedWrap().

◆ getORE()

OptimizationRemarkEmitter& llvm::SelectionDAG::getORE ( ) const

inline

Definition at line 408 of file SelectionDAG.h.

◆ getPass()

const Pass* llvm::SelectionDAG::getPass ( ) const

inline

Definition at line 399 of file SelectionDAG.h.

Referenced by llvm::SITargetLowering::LowerFormalArguments(), and llvm::SITargetLowering::passSpecialInputs().

◆ getRegister()

SDValue SelectionDAG::getRegister	(	unsigned	Reg,
		EVT	VT
	)

Definition at line 1729 of file SelectionDAG.cpp.

References llvm::FoldingSetNodeID::AddInteger(), AddNodeIDNode(), E, getVTList(), llvm::TargetLowering::isSDNodeSourceOfDivergence(), llvm::None, llvm::ISD::Register, and llvm::SDNode::SDNodeBits.

◆ getRegisterMask()

SDValue SelectionDAG::getRegisterMask ( const uint32_t * RegMask )

Definition at line 1744 of file SelectionDAG.cpp.

References AddNodeIDNode(), llvm::FoldingSetNodeID::AddPointer(), E, getVTList(), llvm::None, llvm::ISD::RegisterMask, and llvm::MVT::Untyped.

Referenced by llvm::analyzeArguments(), CC_Lanai32_VarArg(), llvm::ARMTargetLowering::CCAssignFnForReturn(), llvm::HexagonTargetLowering::GetDynamicTLSAddr(), llvm::ARMTargetLowering::getJumpTableEncoding(), getMOVL(), llvm::MipsTargetLowering::getOpndList(), getReductionSDNode(), llvm::ARCTargetLowering::getTargetNodeName(), llvm::HexagonTargetLowering::LowerCall(), llvm::SITargetLowering::LowerCall(), llvm::SystemZTargetLowering::LowerCall(), llvm::SparcTargetLowering::LowerCall_32(), llvm::SparcTargetLowering::LowerCall_64(), llvm::SparcTargetLowering::LowerGlobalTLSAddress(), mayTailCallThisCC(), PrepareCall(), and unpackF64OnRV32DSoftABI().

◆ getRoot()

const SDValue& llvm::SelectionDAG::getRoot ( ) const

inline

◆ getSelect()

SDValue llvm::SelectionDAG::getSelect	(	const SDLoc &	DL,
		EVT	VT,
		SDValue	Cond,
		SDValue	LHS,
		SDValue	RHS
	)

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 950 of file SelectionDAG.h.

References assert(), llvm::SDValue::getValueType(), llvm::EVT::isVector(), llvm::ISD::SELECT, and llvm::ISD::VSELECT.

Referenced by llvm::TargetLowering::BuildUDIV(), combineFMinNumFMaxNum(), combineLogicBlendIntoPBLENDV(), combineMaskedLoadConstantMask(), combineMinNumMaxNum(), combineSelect(), combineVSelectWithAllOnesOrZeros(), ConvertSelectToConcatVector(), foldExtendedSignBitTest(), getAsNonOpaqueConstant(), getExpandedMinMaxOps(), GetFPLibCall(), getLoadExtOrTrunc(), getPermuteMask(), getShiftAmountTyForConstant(), getUnderlyingArgReg(), isTruncWithZeroHighBitsInput(), llvm::HexagonTargetLowering::LowerBUILD_VECTOR(), LowerBUILD_VECTORvXi1(), llvm::AMDGPUTargetLowering::LowerFRINT(), llvm::AMDGPUTargetLowering::LowerINT_TO_FP32(), LowerMINMAX(), LowerRotate(), LowerShift(), llvm::LanaiTargetLowering::LowerSHL_PARTS(), LowerSIGN_EXTEND_Mask(), llvm::LanaiTargetLowering::LowerSRL_PARTS(), lowerUINT_TO_FP_vec(), lowerVectorShuffleAsBlend(), lowerVectorShuffleToEXPAND(), lowerVSELECTtoVectorShuffle(), LowerZERO_EXTEND_Mask(), performSelectCombine(), replaceShuffleOfInsert(), and simplifyDivRem().

◆ 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 962 of file SelectionDAG.h.

References From, getCondCode(), llvm::SDValue::getValueType(), llvm::MachineMemOperand::MOLoad, llvm::MachineMemOperand::MONone, llvm::MachineMemOperand::MOStore, llvm::RISCVFenceField::O, llvm::RISCVFenceField::R, llvm::ISD::SELECT_CC, X, and Y.

Referenced by calculateByteProvider(), combineHorizontalPredicateResult(), ConvertCarryFlagToBooleanCarry(), createVariablePermute(), llvm::TargetLowering::expandMUL_LOHI(), GetFPLibCall(), isClampZeroToOne(), llvm::AMDGPUTargetLowering::LowerFP_TO_FP16(), llvm::AMDGPUTargetLowering::LowerSDIVREM(), llvm::AMDGPUTargetLowering::LowerUDIVREM(), llvm::AMDGPUTargetLowering::LowerUDIVREM64(), llvm::R600TargetLowering::PerformDAGCombine(), PrepareCall(), llvm::R600TargetLowering::ReplaceNodeResults(), and widenVec().

◆ getSelectionDAGInfo()

const SelectionDAGTargetInfo& llvm::SelectionDAG::getSelectionDAGInfo ( ) const

inline

Definition at line 406 of file SelectionDAG.h.

Referenced by getMemCmpLoad().

◆ getSetCC()

SDValue llvm::SelectionDAG::getSetCC	(	const SDLoc &	DL,
		EVT	VT,
		SDValue	LHS,
		SDValue	RHS,
		ISD::CondCode	Cond
	)

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 937 of file SelectionDAG.h.

References assert(), getCondCode(), llvm::SDValue::getValueType(), llvm::EVT::isVector(), llvm::ISD::SETCC, and llvm::ISD::SETCC_INVALID.

◆ 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 1106 of file SelectionDAG.cpp.

References llvm::EVT::bitsGT(), getNode(), llvm::SDValue::getValueType(), llvm::ISD::SIGN_EXTEND, and llvm::ISD::TRUNCATE.

Referenced by combineGatherScatter(), combineHorizontalPredicateResult(), combineShuffleOfScalars(), combineToExtendBoolVectorInReg(), EmitVectorComparison(), FoldCONCAT_VECTORS(), foldExtendedSignBitTest(), generateEquivalentSub(), getExpandedMinMaxOps(), getFPTernOp(), getMad64_32(), getMemCmpLoad(), getNode(), getShiftAmountTyForConstant(), hasOnlySelectUsers(), isTruncateOf(), llvm::SITargetLowering::isTypeDesirableForOp(), LowerBITCAST(), llvm::AMDGPUTargetLowering::LowerINT_TO_FP32(), LowerLoad(), LowerMULH(), llvm::HexagonTargetLowering::LowerSETCC(), LowerShift(), lowerVSELECTtoVectorShuffle(), LowerVSETCC(), llvm::AMDGPUTargetLowering::performMulCombine(), llvm::AMDGPUTargetLowering::performMulhsCombine(), and scalarizeExtractedBinop().

◆ 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 1865 of file SelectionDAG.cpp.

References getDataLayout(), llvm::TargetLoweringBase::getShiftAmountTy(), llvm::SDValue::getValueType(), getZExtOrTrunc(), and llvm::EVT::isVector().

◆ 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 751 of file SelectionDAG.h.

References assert(), llvm::EVT::bitsLE(), llvm::ISD::BUILD_VECTOR, llvm::SDValue::getOpcode(), llvm::SDValue::getValueType(), llvm::EVT::getVectorElementType(), llvm::EVT::getVectorNumElements(), llvm::EVT::isInteger(), and llvm::ISD::UNDEF.

Referenced by ConstantBuildVector(), getConstant(), getConstantFP(), getMemsetValue(), getUniformBase(), getVectorShuffle(), and hasOnlySelectUsers().

◆ 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 9040 of file SelectionDAG.cpp.

References llvm::EVT::getHalfNumVectorElementsVT(), and llvm::EVT::isVector().

Referenced by ConvertSelectToConcatVector(), ExtendUsesToFormExtLoad(), llvm::X86TargetLowering::ReplaceNodeResults(), ReplaceReductionResults(), llvm::AMDGPUTargetLowering::SplitVectorLoad(), llvm::AMDGPUTargetLowering::SplitVectorStore(), and SplitVSETCC().

◆ getSrcValue()

SDValue SelectionDAG::getSrcValue ( const Value * v )

Construct a node to track a Value* through the backend.

Definition at line 1802 of file SelectionDAG.cpp.

References AddNodeIDNode(), llvm::FoldingSetNodeID::AddPointer(), assert(), E, llvm::Value::getType(), getVTList(), llvm::Type::isPointerTy(), llvm::None, llvm::MVT::Other, and llvm::ISD::SRCVALUE.

Referenced by findMatchingInlineAsmOperand(), and getUnderlyingArgReg().

◆ 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 5393 of file SelectionDAG.cpp.

References getEntryNode(), getNode(), llvm::MVT::Other, llvm::SmallVectorTemplateBase< T >::push_back(), and llvm::ISD::TokenFactor.

Referenced by getMOVL(), and PrepareCall().

◆ getStore() [1/2]

SDValue SelectionDAG::getStore	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Val,
		SDValue	Ptr,
		MachinePointerInfo	PtrInfo,
		unsigned	Alignment = `0`,
		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 6724 of file SelectionDAG.cpp.

References assert(), getEVTAlignment(), getMachineFunction(), llvm::MachineFunction::getMachineMemOperand(), llvm::EVT::getStoreSize(), llvm::SDValue::getValueType(), InferPointerInfo(), llvm::PointerUnion< PT1, PT2 >::isNull(), llvm::MachineMemOperand::MOLoad, llvm::MachineMemOperand::MOStore, llvm::MVT::Other, and llvm::MachinePointerInfo::V.

◆ getStore() [2/2]

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

Definition at line 6745 of file SelectionDAG.cpp.

References llvm::FoldingSetNodeID::AddInteger(), AddNodeIDNode(), assert(), E, llvm::MachinePointerInfo::getAddrSpace(), llvm::SDLoc::getDebugLoc(), llvm::SDLoc::getIROrder(), llvm::MachineMemOperand::getPointerInfo(), getUNDEF(), llvm::SDValue::getValueType(), getVTList(), NewSDValueDbgMsg(), llvm::MVT::Other, llvm::ISD::STORE, llvm::RegState::Undef, and llvm::ISD::UNINDEXED.

◆ getSubtarget()

const TargetSubtargetInfo& llvm::SelectionDAG::getSubtarget ( ) const

inline

◆ getSymbolFunctionGlobalAddress()

SDValue SelectionDAG::getSymbolFunctionGlobalAddress	(	SDValue	Op,
		Function **	TargetFunction = `nullptr`
	)

Returs an GlobalAddress of the function from the current module with name matching the given ExternalSymbol.

Additionally can provide the matched function. Panics the function doesn't exists.

Definition at line 8525 of file SelectionDAG.cpp.

References assert(), llvm::raw_ostream::flush(), llvm::GlobalValue::getAddressSpace(), getDataLayout(), llvm::Module::getFunction(), getGlobalAddress(), llvm::GlobalValue::getParent(), llvm::object::getSymbol(), llvm::report_fatal_error(), and llvm::ARMBuildAttrs::Symbol.

Referenced by llvm::NVPTXTargetLowering::LowerCall().

◆ getTarget()

const TargetMachine& llvm::SelectionDAG::getTarget ( ) const

inline

Definition at line 402 of file SelectionDAG.h.

References llvm::SystemZISD::TM.

Referenced by CallingConvSupported(), combineFMinFMax(), combineFMinNumFMaxNum(), combineSelect(), llvm::MipsTargetLowering::EmitInstrWithCustomInserter(), foldFPToIntToFP(), FoldIntToFPToInt(), getFPTernOp(), llvm::ARMTargetLowering::getJumpTableEncoding(), getLoadExtOrTrunc(), getMad64_32(), getMOVL(), GetNegatedExpression(), getNode(), llvm::SDNode::getOperationName(), llvm::PPCTargetLowering::getPICJumpTableRelocBaseExpr(), getUnderlyingArgReg(), isClampZeroToOne(), isContractable(), llvm::SITargetLowering::isEligibleForTailCallOptimization(), isFMAddSubOrFMSubAdd(), isKnownNeverNaN(), isLegalToCombineMinNumMaxNum(), llvm::SelectionDAGBuilder::LowerCallTo(), LowerEXTRACT_SUBVECTOR(), llvm::SparcTargetLowering::LowerGlobalTLSAddress(), LowerToTLSExecModel(), lowerUINT_TO_FP_vXi32(), MatchingStackOffset(), mayTailCallThisCC(), PrepareCall(), shouldGuaranteeTCO(), llvm::SelectionDAGBuilder::UpdateSplitBlock(), and widenVec().

◆ getTargetBlockAddress()

SDValue llvm::SelectionDAG::getTargetBlockAddress	(	const BlockAddress *	BA,
		EVT	VT,
		int64_t	Offset = `0`,
		unsigned char	TargetFlags = `0`
	)

inline

Definition at line 673 of file SelectionDAG.h.

Referenced by getEstimate(), llvm::MipsTargetLowering::getGlobalReg(), llvm::PPCTargetLowering::getPICJumpTableRelocBaseExpr(), llvm::AVRTargetLowering::getSetCCResultType(), IsSmallObject(), llvm::MSP430TargetLowering::LowerBlockAddress(), llvm::HexagonTargetLowering::LowerBlockAddress(), LowerEXTRACT_SUBVECTOR(), llvm::RISCVTargetLowering::LowerOperation(), mayTailCallThisCC(), and llvm::SparcTargetLowering::withTargetFlags().

◆ getTargetConstant() [1/3]

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

inline

Definition at line 576 of file SelectionDAG.h.

References getConstant().

◆ getTargetConstant() [2/3]

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

inline

Definition at line 580 of file SelectionDAG.h.

References getConstant().

◆ getTargetConstant() [3/3]

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

inline

Definition at line 584 of file SelectionDAG.h.

References getConstant().

◆ getTargetConstantFP() [1/3]

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

inline

Definition at line 608 of file SelectionDAG.h.

Referenced by llvm::NVPTXDAGToDAGISel::runOnMachineFunction(), and llvm::SelectionDAGISel::SelectCodeCommon().

◆ getTargetConstantFP() [2/3]

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

inline

Definition at line 611 of file SelectionDAG.h.

◆ getTargetConstantFP() [3/3]

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

inline

Definition at line 614 of file SelectionDAG.h.

◆ getTargetConstantPool() [1/2]

SDValue llvm::SelectionDAG::getTargetConstantPool	(	const Constant *	C,
		EVT	VT,
		unsigned	Align = `0`,
		int	Offset = `0`,
		unsigned char	TargetFlags = `0`
	)

inline

Definition at line 639 of file SelectionDAG.h.

References llvm::AMDGPU::HSAMD::Kernel::Arg::Key::Align.

Referenced by llvm::ARMTargetLowering::CCAssignFnForReturn(), llvm::MipsTargetLowering::getGlobalReg(), llvm::ARMTargetLowering::getJumpTableEncoding(), getTOCEntry(), llvm::ARMTargetLowering::isReadOnly(), IsSmallObject(), llvm::LanaiTargetLowering::LowerConstantPool(), llvm::HexagonTargetLowering::LowerConstantPool(), LowerEXTRACT_SUBVECTOR(), llvm::RISCVTargetLowering::LowerOperation(), LowerWRITE_REGISTER(), mayTailCallThisCC(), promoteToConstantPool(), and llvm::SparcTargetLowering::withTargetFlags().

◆ getTargetConstantPool() [2/2]

SDValue llvm::SelectionDAG::getTargetConstantPool	(	MachineConstantPoolValue *	C,
		EVT	VT,
		unsigned	Align = `0`,
		int	Offset = `0`,
		unsigned char	TargetFlags = `0`
	)

inline

Definition at line 647 of file SelectionDAG.h.

References llvm::AMDGPU::HSAMD::Kernel::Arg::Key::Align, and Reg.

◆ getTargetExternalSymbol()

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

Definition at line 1515 of file SelectionDAG.cpp.

◆ 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 7821 of file SelectionDAG.cpp.

References getMachineNode(), getTargetConstant(), and llvm::MVT::i32.

Referenced by llvm::SITargetLowering::buildRSRC(), llvm::HexagonTargetLowering::LowerBITCAST(), llvm::HexagonTargetLowering::LowerCONCAT_VECTORS(), LowerF64Op(), lowerGR128Binary(), lowerGR128ToI128(), mayTailCallThisCC(), NarrowVector(), ReplaceCMP_SWAP_128Results(), ReplaceCMP_SWAP_64Results(), llvm::HexagonDAGToDAGISel::SelectIndexedStore(), and llvm::HexagonDAGToDAGISel::SelectVAlign().

◆ getTargetFrameIndex()

SDValue llvm::SelectionDAG::getTargetFrameIndex	(	int	FI,
		EVT	VT
	)

inline

Definition at line 628 of file SelectionDAG.h.

Referenced by addStackMapLiveVars(), llvm::AVRDAGToDAGISel::select< ISD::FrameIndex >(), CallingConvSupported(), lowerIncomingStatepointValue(), lowerStatepointMetaArgs(), reservePreviousStackSlotForValue(), llvm::AVRDAGToDAGISel::SelectAddr(), llvm::PPCTargetLowering::SelectAddressRegImm(), llvm::HexagonDAGToDAGISel::SelectAddrFI(), llvm::HexagonDAGToDAGISel::SelectFrameIndex(), and spillIncomingStatepointValue().

◆ getTargetGlobalAddress()

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

inline

Definition at line 622 of file SelectionDAG.h.

◆ getTargetIndex()

SDValue SelectionDAG::getTargetIndex	(	int	Index,
		EVT	VT,
		int64_t	Offset = `0`,
		unsigned char	TargetFlags = `0`
	)

Definition at line 1453 of file SelectionDAG.cpp.

References llvm::FoldingSetNodeID::AddInteger(), AddNodeIDNode(), E, getVTList(), llvm::None, and llvm::ISD::TargetIndex.

◆ 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 7831 of file SelectionDAG.cpp.

References getMachineNode(), getTargetConstant(), and llvm::MVT::i32.

Referenced by LowerF64Op(), and mayTailCallThisCC().

◆ getTargetJumpTable()

SDValue llvm::SelectionDAG::getTargetJumpTable	(	int	JTI,
		EVT	VT,
		unsigned char	TargetFlags = `0`
	)

inline

Definition at line 633 of file SelectionDAG.h.

References llvm::AMDGPU::HSAMD::Kernel::Arg::Key::Align, and C.

Referenced by CallingConvSupported(), expandf64Toi32(), llvm::MipsTargetLowering::getGlobalReg(), llvm::XCoreTargetLowering::getJumpTableEncoding(), llvm::HexagonTargetLowering::getPICJumpTableRelocBase(), llvm::PPCTargetLowering::getPICJumpTableRelocBaseExpr(), llvm::ARCTargetLowering::getTargetNodeName(), LowerEXTRACT_SUBVECTOR(), llvm::LanaiTargetLowering::LowerJumpTable(), llvm::MSP430TargetLowering::LowerJumpTable(), llvm::HexagonTargetLowering::LowerJumpTable(), and mayTailCallThisCC().

◆ getTargetLoweringInfo()

const TargetLowering& llvm::SelectionDAG::getTargetLoweringInfo ( ) const

inline

Definition at line 404 of file SelectionDAG.h.

◆ getTargetMemSDNode()

template<class TargetMemSDNode >

SDValue llvm::SelectionDAG::getTargetMemSDNode	(	SDVTList	VTs,
		ArrayRef< SDValue >	Ops,
		const SDLoc &	dl,
		EVT	MemVT,
		MachineMemOperand *	MMO
	)

Return (create a new or find existing) a target-specific node.

TargetMemSDNode should be derived class from MemSDNode.

Compose node ID and try to find an existing node.

Existing node was not found. Create a new one.

Definition at line 1655 of file SelectionDAG.h.

References llvm::FoldingSetNodeID::AddInteger(), llvm::FoldingSetNodeID::AddPointer(), E, llvm::MachinePointerInfo::getAddrSpace(), llvm::SDLoc::getDebugLoc(), llvm::SDLoc::getIROrder(), getOpcode(), llvm::MachineMemOperand::getPointerInfo(), llvm::FoldingSetImpl< T >::InsertNode(), N, and llvm::SDVTList::VTs.

Referenced by EmitMaskedTruncSStore(), EmitTruncSStore(), LowerMGATHER(), LowerMSCATTER(), and llvm::X86TargetLowering::ReplaceNodeResults().

◆ getTruncStore() [1/2]

SDValue SelectionDAG::getTruncStore	(	SDValue	Chain,
		const SDLoc &	dl,
		SDValue	Val,
		SDValue	Ptr,
		MachinePointerInfo	PtrInfo,
		EVT	SVT,
		unsigned	Alignment = `0`,
		MachineMemOperand::Flags	MMOFlags = `MachineMemOperand::MONone`,
		const AAMDNodes &	AAInfo = `AAMDNodes()`
	)

Definition at line 6775 of file SelectionDAG.cpp.

References assert(), getEVTAlignment(), getMachineFunction(), llvm::MachineFunction::getMachineMemOperand(), llvm::EVT::getStoreSize(), llvm::SDValue::getValueType(), InferPointerInfo(), llvm::PointerUnion< PT1, PT2 >::isNull(), llvm::MachineMemOperand::MOLoad, llvm::MachineMemOperand::MOStore, llvm::MVT::Other, and llvm::MachinePointerInfo::V.

Referenced by chainLoadsAndStoresForMemcpy(), EnsureStackAlignment(), llvm::TargetLowering::expandUnalignedLoad(), llvm::TargetLowering::expandUnalignedStore(), getExpandedMinMaxOps(), GetFPLibCall(), getFPTernOp(), getMemcpyLoadsAndStores(), getShiftAmountTyForConstant(), getVectorCompareInfo(), haveEfficientBuildVectorPattern(), isWordAligned(), LowerINTRINSIC_W_CHAIN(), operator!=(), PrepareCall(), llvm::R600TargetLowering::ReplaceNodeResults(), llvm::TargetLowering::scalarizeVectorStore(), ShrinkLoadReplaceStoreWithStore(), llvm::AMDGPUTargetLowering::SplitVectorStore(), and llvm::HexagonDAGToDAGISel::StoreInstrForLoadIntrinsic().

◆ getTruncStore() [2/2]

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

◆ getUNDEF()

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

inline

Return an UNDEF node. UNDEF does not have a useful SDLoc.

Definition at line 852 of file SelectionDAG.h.

References llvm::ISD::UNDEF.

◆ 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 7060 of file SelectionDAG.cpp.

References getNode(), getTargetConstant(), getVTList(), llvm::MVT::i32, llvm::MVT::Other, and llvm::ISD::VAARG.

Referenced by findMatchingInlineAsmOperand(), GetFPLibCall(), and getShiftAmountTyForConstant().

◆ getValueType()

SDValue SelectionDAG::getValueType ( EVT VT )

Definition at line 1484 of file SelectionDAG.cpp.

References llvm::EVT::getSimpleVT(), llvm::EVT::isExtended(), llvm::EVT::isSimple(), and llvm::MVT::SimpleTy.

◆ 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 1546 of file SelectionDAG.cpp.

References llvm::FoldingSetNodeID::AddInteger(), AddNodeIDNode(), llvm::all_of(), llvm::BumpPtrAllocatorImpl< AllocatorT, SlabSize, SizeThreshold >::Allocate(), assert(), llvm::ArrayRef< T >::begin(), llvm::ISD::BITCAST, C, commuteShuffle(), llvm::copy(), E, llvm::ArrayRef< T >::end(), llvm::SDLoc::getDebugLoc(), llvm::SDLoc::getIROrder(), getNode(), llvm::SDValue::getOpcode(), llvm::SDNode::getOperand(), getSplatBuildVector(), llvm::BuildVectorSDNode::getSplatValue(), getUNDEF(), llvm::SDValue::getValueType(), llvm::EVT::getVectorNumElements(), getVTList(), llvm::TargetLoweringBase::hasVectorBlend(), llvm::SDValue::isUndef(), NewSDValueDbgMsg(), llvm::BitVector::none(), llvm::ArrayRef< T >::size(), and llvm::ISD::VECTOR_SHUFFLE.

◆ 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 7891 of file SelectionDAG.cpp.

References assert(), llvm::SDDbgInfo::getAlloc(), and llvm::SDDbgValue::VREG.

Referenced by getUnderlyingArgReg().

◆ getVTList() [1/5]

SDVTList SelectionDAG::getVTList ( EVT VT )

Return an SDVTList that represents the list of values specified.

Definition at line 7239 of file SelectionDAG.cpp.

References makeVTList().

◆ getVTList() [2/5]

SDVTList SelectionDAG::getVTList	(	EVT	VT1,
		EVT	VT2
	)

Definition at line 7243 of file SelectionDAG.cpp.

References llvm::FoldingSetNodeID::AddInteger(), llvm::BumpPtrAllocatorImpl< AllocatorT, SlabSize, SizeThreshold >::Allocate(), llvm::EVT::getRawBits(), llvm::SDVTListNode::getSDVTList(), and llvm::FoldingSetNodeID::Intern().

◆ getVTList() [3/5]

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

Definition at line 7261 of file SelectionDAG.cpp.

References llvm::FoldingSetNodeID::AddInteger(), llvm::BumpPtrAllocatorImpl< AllocatorT, SlabSize, SizeThreshold >::Allocate(), llvm::EVT::getRawBits(), llvm::SDVTListNode::getSDVTList(), and llvm::FoldingSetNodeID::Intern().

◆ getVTList() [4/5]

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

Definition at line 7281 of file SelectionDAG.cpp.

References llvm::FoldingSetNodeID::AddInteger(), llvm::BumpPtrAllocatorImpl< AllocatorT, SlabSize, SizeThreshold >::Allocate(), llvm::EVT::getRawBits(), llvm::SDVTListNode::getSDVTList(), and llvm::FoldingSetNodeID::Intern().

◆ getVTList() [5/5]

SDVTList SelectionDAG::getVTList ( ArrayRef< EVT > VTs )

Definition at line 7303 of file SelectionDAG.cpp.

References llvm::FoldingSetNodeID::AddInteger(), llvm::BumpPtrAllocatorImpl< AllocatorT, SlabSize, SizeThreshold >::Allocate(), llvm::copy(), llvm::SDVTListNode::getSDVTList(), llvm::FoldingSetNodeID::Intern(), and llvm::ArrayRef< T >::size().

◆ 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 1127 of file SelectionDAG.cpp.

References llvm::ISD::AND, assert(), getConstant(), llvm::APInt::getLowBitsSet(), getNode(), llvm::EVT::getScalarType(), llvm::SDValue::getScalarValueSizeInBits(), llvm::EVT::getSizeInBits(), llvm::SDValue::getValueType(), and llvm::EVT::isVector().

Referenced by combineExtSetcc(), ConstantAddressBlock(), getExpandedMinMaxOps(), getLoadExtOrTrunc(), getShiftAmountTyForConstant(), isAnyConstantBuildVector(), isTruncateOf(), llvm::HexagonTargetLowering::LowerBITCAST(), llvm::MSP430TargetLowering::LowerShifts(), llvm::AMDGPUTargetLowering::PerformDAGCombine(), PromoteMaskArithmetic(), llvm::R600TargetLowering::ReplaceNodeResults(), and replaceShuffleOfInsert().

◆ 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 1112 of file SelectionDAG.cpp.

References llvm::EVT::bitsGT(), getNode(), llvm::SDValue::getValueType(), llvm::ISD::TRUNCATE, and llvm::ISD::ZERO_EXTEND.

Referenced by combineBitcast(), combineBitcastvxi1(), combineCompareEqual(), combineExtractWithShuffle(), combineMinNumMaxNum(), combineSelect(), combineShuffleOfScalars(), combineSubToSubus(), createVariablePermute(), llvm::SystemZSelectionDAGInfo::EmitTargetCodeForMemchr(), llvm::SystemZSelectionDAGInfo::EmitTargetCodeForStrnlen(), foldAddSubBoolOfMaskedVal(), FoldCONCAT_VECTORS(), generateEquivalentSub(), getExpandedMinMaxOps(), getMad64_32(), getMemCmpLoad(), getShiftAmountOperand(), getShiftAmountTyForConstant(), getUnderlyingArgReg(), llvm::TargetLowering::getVectorElementPointer(), hasOnlySelectUsers(), llvm::TargetLowering::IncrementMemoryAddress(), isTruncateOf(), llvm::SITargetLowering::isTypeDesirableForOp(), isVectorReductionOp(), llvm::HexagonTargetLowering::LowerBITCAST(), LowerBITCAST(), LowerBuildVectorv16i8(), LowerFGETSIGN(), llvm::AMDGPUTargetLowering::LowerFP_TO_FP16(), LowerINTRINSIC_W_CHAIN(), LowerMULH(), llvm::SystemZTargetLowering::LowerOperationWrapper(), LowerShift(), lowerX86CmpEqZeroToCtlzSrl(), llvm::AMDGPUTargetLowering::performMulCombine(), llvm::AMDGPUTargetLowering::performMulhuCombine(), llvm::AMDGPUTargetLowering::performShlCombine(), llvm::AMDGPUTargetLowering::performTruncateCombine(), llvm::X86TargetLowering::ReplaceNodeResults(), ShrinkLoadReplaceStoreWithStore(), simplifyDivRem(), tryFoldToZero(), llvm::SelectionDAGBuilder::visitBitTestCase(), llvm::SelectionDAGBuilder::visitBitTestHeader(), and llvm::SelectionDAGBuilder::visitJumpTableHeader().

◆ hasDebugValues()

bool llvm::SelectionDAG::hasDebugValues ( ) const

inline

Return true if there are any SDDbgValue nodes associated with this SelectionDAG.

Definition at line 1359 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 3978 of file SelectionDAG.cpp.

References assert(), computeKnownBits(), llvm::SDValue::getValueType(), and llvm::KnownBits::Zero.

Referenced by foldAddSubOfSignBit().

◆ InferPtrAlignment()

unsigned SelectionDAG::InferPtrAlignment ( SDValue Ptr ) const

Infer alignment of a load / store address.

InferPtrAlignment - Infer alignment of a load / store address.

Return 0 if it cannot be inferred.

Definition at line 9001 of file SelectionDAG.cpp.

References llvm::AMDGPU::HSAMD::Kernel::Arg::Key::Align, llvm::computeKnownBits(), llvm::KnownBits::countMinTrailingZeros(), llvm::SDValue::getConstantOperandVal(), llvm::SDValue::getNode(), llvm::MachineFrameInfo::getObjectAlignment(), llvm::SDValue::getOperand(), llvm::GlobalValue::getType(), and llvm::MinAlign().

Referenced by llvm::ARMTargetLowering::CCAssignFnForReturn(), llvm::TargetLowering::computeKnownBitsForFrameIndex(), getMemCmpLoad(), getMemcpyLoadsAndStores(), getMemmoveLoadsAndStores(), LowerAsSplatVectorLoad(), numVectorEltsOrZero(), and ShrinkLoadReplaceStoreWithStore().

◆ init()

void SelectionDAG::init	(	MachineFunction &	NewMF,
		OptimizationRemarkEmitter &	NewORE,
		Pass *	PassPtr,
		const TargetLibraryInfo *	LibraryInfo,
		LegacyDivergenceAnalysis *	Divergence
	)

Prepare this SelectionDAG to process code in the given MachineFunction.

Definition at line 1002 of file SelectionDAG.cpp.

References llvm::Function::getContext(), llvm::MachineFunction::getFunction(), llvm::TargetSubtargetInfo::getSelectionDAGInfo(), getSubtarget(), and llvm::TargetSubtargetInfo::getTargetLowering().

Referenced by llvm::SelectionDAGISel::runOnMachineFunction().

◆ 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 3800 of file SelectionDAG.cpp.

References llvm::ISD::ADD, llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), MaskedValueIsZero(), and llvm::ISD::OR.

Referenced by getBaseWithConstantOffset(), isWordAligned(), LowerAsSplatVectorLoad(), replaceZeroVectorStore(), and llvm::AVRDAGToDAGISel::SelectAddr().

◆ isConstantFPBuildVectorOrConstantFP()

SDNode * SelectionDAG::isConstantFPBuildVectorOrConstantFP ( SDValue N )

Test whether the given value is a constant FP or similar node.

Definition at line 9257 of file SelectionDAG.cpp.

References assert(), llvm::checkForCycles(), llvm::SDValue::getNode(), I, llvm::ISD::isBuildVectorOfConstantFPSDNodes(), llvm::max(), llvm::FoldingSetBase::Node::Node(), llvm::MVT::Other, llvm::SDNode::SDNodeBits, and llvm::ArrayRef< T >::size().

◆ isConstantIntBuildVectorOrConstantInt()

SDNode * SelectionDAG::isConstantIntBuildVectorOrConstantInt ( SDValue N )

Test whether the given value is a constant int or similar node.

Definition at line 9243 of file SelectionDAG.cpp.

References llvm::SDValue::getNode(), llvm::ISD::GlobalAddress, and llvm::ISD::isBuildVectorOfConstantSDNodes().

Referenced by calculateByteProvider(), combineCCMask(), combinePMULDQ(), foldAddSubOfSignBit(), foldFPToIntToFP(), isAnyConstantBuildVector(), isBSwapHWordElement(), isTruncateOf(), salvageDebugInfo(), ShrinkLoadReplaceStoreWithStore(), simplifyDivRem(), stripConstantMask(), and tryFoldToZero().

◆ isConstantValueOfAnyType()

bool llvm::SelectionDAG::isConstantValueOfAnyType ( SDValue N )

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 1595 of file SelectionDAG.h.

References isConstantFPBuildVectorOrConstantFP().

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 3963 of file SelectionDAG.cpp.

Referenced by combineSelect().

◆ isKnownNeverNaN()

bool SelectionDAG::isKnownNeverNaN	(	SDValue	Op,
		bool	SNaN = `false`,
		unsigned	Depth = `0`
	)		const

Test whether the given SDValue 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 3813 of file SelectionDAG.cpp.

References llvm::ISD::BUILTIN_OP_END, C, llvm::ISD::EXTRACT_VECTOR_ELT, llvm::ISD::FABS, llvm::ISD::FADD, llvm::ISD::FCANONICALIZE, llvm::ISD::FCEIL, llvm::ISD::FCOPYSIGN, llvm::ISD::FCOS, llvm::ISD::FDIV, llvm::ISD::FEXP, llvm::ISD::FEXP2, llvm::ISD::FFLOOR, llvm::ISD::FLOG, llvm::ISD::FLOG10, llvm::ISD::FLOG2, llvm::ISD::FMA, llvm::ISD::FMAD, llvm::ISD::FMAXIMUM, llvm::ISD::FMAXNUM, llvm::ISD::FMAXNUM_IEEE, llvm::ISD::FMINIMUM, 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::FSIN, llvm::ISD::FSQRT, llvm::ISD::FSUB, llvm::ISD::FTRUNC, llvm::SDNode::getFlags(), llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), getTarget(), llvm::SDNodeFlags::hasNoNaNs(), llvm::ISD::INTRINSIC_VOID, llvm::ISD::INTRINSIC_W_CHAIN, llvm::ISD::INTRINSIC_WO_CHAIN, llvm::TargetLowering::isKnownNeverNaNForTargetNode(), isKnownNeverSNaN(), llvm::ISD::SELECT, llvm::ISD::SINT_TO_FP, and llvm::ISD::UINT_TO_FP.

Referenced by combineSelect(), llvm::AMDGPUTargetLowering::isKnownNeverNaNForTargetNode(), llvm::SITargetLowering::isKnownNeverNaNForTargetNode(), and isLegalToCombineMinNumMaxNum().

◆ 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 1496 of file SelectionDAG.h.

References A, B, llvm::Depth, llvm::haveNoCommonBitsSet(), llvm::isKnownNeverNaN(), and llvm::ARM_MB::LD.

Referenced by getSplatConstantFP(), llvm::SITargetLowering::isCanonicalized(), and isKnownNeverNaN().

◆ isKnownNeverZero()

bool SelectionDAG::isKnownNeverZero ( SDValue Op ) const

Test whether the given SDValue is known to contain non-zero value(s).

Definition at line 3941 of file SelectionDAG.cpp.

References assert(), C, llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), llvm::SDValue::getValueType(), llvm::EVT::isFloatingPoint(), llvm::ConstantSDNode::isNullValue(), llvm::ISD::matchUnaryPredicate(), and llvm::ISD::OR.

Referenced by calculateByteProvider(), LowerShift(), and simplifyDivRem().

◆ 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 3930 of file SelectionDAG.cpp.

References assert(), C, llvm::SDValue::getValueType(), and llvm::EVT::isFloatingPoint().

Referenced by combineSelect().

◆ isKnownToBeAPowerOfTwo()

bool SelectionDAG::isKnownToBeAPowerOfTwo ( SDValue Val ) 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 3234 of file SelectionDAG.cpp.

References llvm::all_of(), llvm::ISD::BUILD_VECTOR, C, computeKnownBits(), llvm::KnownBits::countMaxPopulation(), llvm::KnownBits::countMinPopulation(), E, llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), llvm::EVT::getScalarSizeInBits(), llvm::SDValue::getValueType(), llvm::isConstOrConstSplat(), llvm::SDNode::ops(), llvm::ISD::SHL, and llvm::ISD::SRL.

Referenced by llvm::TargetLowering::isExtendedTrueVal(), simplifyDivRem(), and tryFoldToZero().

◆ isSplatValue() [1/2]

bool SelectionDAG::isSplatValue	(	SDValue	V,
		const APInt &	DemandedElts,
		APInt &	UndefElts
	)

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.

Definition at line 2153 of file SelectionDAG.cpp.

References llvm::ISD::ADD, llvm::ISD::AND, assert(), llvm::ISD::BUILD_VECTOR, llvm::dyn_cast(), llvm::ISD::EXTRACT_SUBVECTOR, llvm::APInt::extractBits(), llvm::ConstantSDNode::getAPIntValue(), llvm::APInt::getBitWidth(), llvm::APInt::getNullValue(), llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), llvm::SDValue::getValueType(), llvm::EVT::getVectorNumElements(), llvm::ConstantSDNode::getZExtValue(), llvm::SDValue::isUndef(), llvm::EVT::isVector(), llvm::BitmaskEnumDetail::Mask(), llvm::APInt::shl(), llvm::ISD::SUB, llvm::APInt::ule(), llvm::ISD::VECTOR_SHUFFLE, and llvm::APInt::zextOrSelf().

Referenced by isSplatValue(), IsSplatVector(), and LowerRotate().

◆ isSplatValue() [2/2]

bool SelectionDAG::isSplatValue	(	SDValue	V,
		bool	AllowUndefs = `false`
	)

Test whether V has a splatted value.

Helper wrapper to main isSplatValue function.

Definition at line 2236 of file SelectionDAG.cpp.

References assert(), llvm::APInt::getAllOnesValue(), llvm::SDValue::getValueType(), llvm::EVT::getVectorNumElements(), isSplatValue(), and llvm::EVT::isVector().

◆ isUndef()

bool SelectionDAG::isUndef	(	unsigned	Opcode,
		ArrayRef< SDValue >	Ops
	)

Return true if the result of this operation is always undefined.

Definition at line 4548 of file SelectionDAG.cpp.

References llvm::any_of(), assert(), llvm::ISD::isBuildVectorOfConstantSDNodes(), llvm::isNullConstant(), llvm::ISD::SDIV, llvm::ArrayRef< T >::size(), llvm::ISD::SREM, llvm::ISD::UDIV, and llvm::ISD::UREM.

Referenced by FoldConstantArithmetic(), FoldConstantVectorArithmetic(), 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 4546 of file LegalizeDAG.cpp.

References E, llvm::SmallPtrSetImpl< PtrType >::erase(), llvm::SmallPtrSetImpl< PtrType >::insert(), N, and llvm::SDNode::use_empty().

◆ 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 4595 of file LegalizeDAG.cpp.

References llvm::SmallPtrSetImpl< PtrType >::count(), and llvm::SmallPtrSetImpl< PtrType >::insert().

◆ 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 1114 of file LegalizeTypes.cpp.

References llvm::DAGTypeLegalizer::DAGTypeLegalizer().

◆ 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 1295 of file LegalizeVectorOps.cpp.

◆ makeEquivalentMemoryOrdering()

SDValue SelectionDAG::makeEquivalentMemoryOrdering	(	LoadSDNode *	Old,
		SDValue	New
	)

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 8506 of file SelectionDAG.cpp.

References assert(), llvm::SDValue::getNode(), getNode(), llvm::SDNode::hasAnyUseOfValue(), llvm::MVT::Other, ReplaceAllUsesOfValueWith(), llvm::ISD::TokenFactor, and UpdateNodeOperands().

Referenced by combineStore(), EltsFromConsecutiveLoads(), lowerVectorShuffleAsBroadcast(), and narrowExtractedVectorLoad().

◆ MaskedValueIsZero()

bool SelectionDAG::MaskedValueIsZero	(	SDValue	Op,
		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 2146 of file SelectionDAG.cpp.

References computeKnownBits(), and llvm::APInt::isSubsetOf().

Referenced by calculateByteProvider(), llvm::SelectionDAGISel::CheckAndMask(), combineAnd(), combineMulToPMADDWD(), combineMulToPMULDQ(), combineVectorPack(), llvm::XCoreTargetLowering::EmitInstrWithCustomInserter(), llvm::XCoreSelectionDAGInfo::EmitTargetCodeForMemcpy(), llvm::TargetLowering::expandMUL_LOHI(), generateEquivalentSub(), GetDemandedBits(), getFauxShuffleMask(), getFPTernOp(), getVectorCompareInfo(), isADDADDMUL(), isBaseWithConstantOffset(), isBSwapHWordElement(), isTruncateOf(), isTruncWithZeroHighBitsInput(), LowerAndToBT(), llvm::AMDGPUTargetLowering::LowerUDIVREM64(), llvm::BaseIndexOffset::match(), matchVectorShuffleWithPACK(), llvm::PPCTargetLowering::PerformDAGCombine(), PerformORCombineToBFI(), PerformShiftCombine(), performSRLCombine(), ShrinkLoadReplaceStoreWithStore(), SignBitIsZero(), simplifyDivRem(), llvm::TargetLowering::SimplifySetCC(), and tryFoldToZero().

◆ matchBinOpReduction()

SDValue SelectionDAG::matchBinOpReduction	(	SDNode *	Extract,
		ISD::NodeType &	BinOp,
		ArrayRef< ISD::NodeType >	CandidateBinOps
	)

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.

Definition at line 8849 of file SelectionDAG.cpp.

References llvm::dyn_cast(), llvm::ISD::EXTRACT_VECTOR_ELT, llvm::ShuffleVectorSDNode::getMaskElt(), llvm::SDValue::getOpcode(), llvm::SDNode::getOpcode(), llvm::SDValue::getOperand(), llvm::SDNode::getOperand(), llvm::SDValue::getValueType(), llvm::EVT::getVectorNumElements(), llvm::isNullConstant(), llvm::Log2_32(), and llvm::none_of().

Referenced by combineBasicSADPattern(), combineHorizontalMinMaxResult(), and combineHorizontalPredicateResult().

◆ 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 7576 of file SelectionDAG.cpp.

References AddNodeIDNode(), E, llvm::SmallPtrSetImplBase::empty(), llvm::SDUse::getNode(), llvm::MVT::Glue, I, llvm::SmallPtrSetImpl< PtrType >::insert(), N, llvm::SDVTList::NumVTs, llvm::SDNode::op_begin(), llvm::SDNode::op_end(), llvm::SmallVectorTemplateBase< T >::push_back(), RemoveDeadNodes(), llvm::SDNode::use_empty(), and llvm::SDVTList::VTs.

Referenced by CloneNodeWithValues(), 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 7629 of file SelectionDAG.cpp.

◆ 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 729 of file SelectionDAG.cpp.

References llvm::NVPTXISD::Dummy, getRoot(), and RemoveDeadNodes().

Referenced by llvm::AVRDAGToDAGISel::select< AVRISD::CALL >(), llvm::AVRDAGToDAGISel::select< ISD::BRIND >(), llvm::AVRDAGToDAGISel::select< ISD::LOAD >(), llvm::AVRDAGToDAGISel::select< ISD::STORE >(), llvm::SelectionDAGISel::IsLegalToFold(), llvm::SITargetLowering::legalizeTargetIndependentNode(), llvm::SelectionDAGISel::ReplaceNode(), llvm::HexagonDAGToDAGISel::SelectBrevLdIntrinsic(), llvm::SelectionDAGISel::SelectCodeCommon(), llvm::AVRDAGToDAGISel::selectIndexedLoad(), llvm::HexagonDAGToDAGISel::SelectIndexedLoad(), llvm::HexagonDAGToDAGISel::SelectIndexedStore(), llvm::HexagonDAGToDAGISel::SelectIntrinsicWChain(), llvm::HexagonDAGToDAGISel::SelectNewCircIntrinsic(), SelectNodeTo(), llvm::HvxSelector::selectVAlign(), 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 675 of file SelectionDAG.cpp.

References llvm::NVPTXISD::Dummy, and getRoot().

Referenced by GetVBR(), isPermutation(), isTargetConstant(), MorphNodeTo(), and RemoveDeadNode().

◆ 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 695 of file SelectionDAG.cpp.

References llvm::ISD::DELETED_NODE, E, llvm::SmallVectorBase::empty(), llvm::SDUse::getNode(), llvm::SDNode::getOpcode(), I, N, llvm::SelectionDAG::DAGUpdateListener::Next, llvm::SDNode::op_begin(), llvm::SDNode::op_end(), llvm::SmallVectorImpl< T >::pop_back_val(), llvm::SmallVectorTemplateBase< T >::push_back(), 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 8346 of file SelectionDAG.cpp.

References E, llvm::SDValue::getNode(), llvm::SDValue::getResNo(), llvm::SDUse::getResNo(), llvm::SmallVectorTemplateBase< T >::push_back(), ReplaceAllUsesOfValueWith(), llvm::SmallVectorBase::size(), llvm::sort(), transferDbgValues(), llvm::SDNode::use_begin(), and llvm::SDNode::use_end().

Referenced by addStackMapLiveVars(), llvm::SelectionDAGISel::ReplaceUses(), and ShrinkLoadReplaceStoreWithStore().

◆ 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 8195 of file SelectionDAG.cpp.

References llvm::SDValue::getNode(), llvm::SDNode::getNumValues(), llvm::SDValue::getResNo(), llvm::SDUse::getResNo(), getRoot(), llvm::SDNode::use_iterator::getUse(), llvm::SDNode::isDivergent(), llvm::operator<(), ReplaceAllUsesWith(), setRoot(), transferDbgValues(), updateDivergence(), llvm::SDNode::use_begin(), and llvm::SDNode::use_end().

Referenced by AddCombineTo64bitMLAL(), AddCombineTo64BitSMLAL16(), AddCombineTo64bitUMAAL(), adjustSubwordCmp(), calculateByteProvider(), canFoldInAddressingMode(), combineSetCCAtomicArith(), combineSIntToFP(), combineVSelectToBLENDV(), ConvertSelectToConcatVector(), emitIntrinsicWithCCAndChain(), EmitTest(), ExtendUsesToFormExtLoad(), findUser(), foldBitcastedFPLogic(), foldExtendedSignBitTest(), generateEquivalentSub(), getCCResult(), isAnyConstantBuildVector(), isSlicingProfitable(), isTruncateOf(), lowerAtomicArith(), LowerCMP_SWAP(), llvm::HexagonTargetLowering::LowerDYNAMIC_STACKALLOC(), makeEquivalentMemoryOrdering(), numVectorEltsOrZero(), llvm::PPCTargetLowering::PerformDAGCombine(), performDivRemCombine(), performIntToFpCombine(), PerformORCombineToSMULWBT(), llvm::AMDGPUTargetLowering::performStoreCombine(), PerformVDUPCombine(), PrepareCall(), ReplaceAllUsesOfValuesWith(), llvm::R600TargetLowering::ReplaceNodeResults(), llvm::SelectionDAGISel::ReplaceUses(), ShrinkLoadReplaceStoreWithStore(), simplifyDivRem(), SkipExtensionForVMULL(), tryToFoldExtOfExtload(), and tryToFoldExtOfLoad().

◆ ReplaceAllUsesWith() [1/3]

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 8041 of file SelectionDAG.cpp.

References assert(), From, llvm::SDValue::getNode(), llvm::SDNode::getNumValues(), llvm::SDValue::getResNo(), getRoot(), llvm::SDNode::use_iterator::getUse(), llvm::SDNode::isDivergent(), setRoot(), transferDbgValues(), updateDivergence(), llvm::SDNode::use_begin(), and llvm::SDNode::use_end().

Referenced by addStackMapLiveVars(), ConstantBuildVector(), EmitVectorComparison(), ExpandBITCAST(), findUser(), foldMaskAndShiftToExtract(), foldMaskAndShiftToScale(), foldMaskedShiftToBEXTR(), foldMaskedShiftToScaledMask(), getInputChainForNode(), isAnyConstantBuildVector(), isMemOPCandidate(), isTargetConstant(), llvm::SITargetLowering::legalizeTargetIndependentNode(), LowerMSCATTER(), PerformBFICombine(), performCONDCombine(), llvm::AMDGPUTargetLowering::performFNegCombine(), ReplaceAllUsesOfValueWith(), ReplaceAllUsesWith(), llvm::SelectionDAGISel::ReplaceNode(), llvm::SelectionDAGISel::ReplaceUses(), SelectNodeTo(), simplifyDivRem(), and VerifySDNode().

◆ 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 8092 of file SelectionDAG.cpp.

References assert(), getNode(), llvm::SDNode::getNumValues(), getRoot(), llvm::SDNode::use_iterator::getUse(), llvm::SDNode::getValueType(), llvm::SDNode::hasAnyUseOfValue(), llvm::SDNode::isDivergent(), setRoot(), transferDbgValues(), updateDivergence(), llvm::SDNode::use_begin(), and llvm::SDNode::use_end().

◆ ReplaceAllUsesWith() [3/3]

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 8148 of file SelectionDAG.cpp.

References getNode(), llvm::SDNode::getNumValues(), llvm::SDUse::getResNo(), getRoot(), llvm::SDNode::use_iterator::getUse(), llvm::SDNode::isDivergent(), ReplaceAllUsesWith(), setRoot(), transferDbgValues(), updateDivergence(), llvm::SDNode::use_begin(), and llvm::SDNode::use_end().

◆ 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 1326 of file SelectionDAG.h.

References llvm::iplist_impl< simple_ilist< T, Options... >, ilist_traits< T > >::insert(), and llvm::iplist_impl< simple_ilist< T, Options... >, ilist_traits< T > >::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 7961 of file SelectionDAG.cpp.

References llvm::ISD::ADD, AddDbgValue(), llvm::dbgs(), llvm::SDNode::dumprFull(), llvm::SDNode::getConstantOperandVal(), getDbgValue(), GetDbgValues(), llvm::SDNode::getHasDebugValue(), llvm::SDValue::getNode(), llvm::SDNode::getOpcode(), llvm::SDNode::getOperand(), llvm::SDValue::getResNo(), isConstantIntBuildVectorOrConstantInt(), LLVM_DEBUG, llvm::DIExpression::NoDeref, llvm::DIExpression::prepend(), llvm::SmallVectorTemplateBase< T >::push_back(), and llvm::DIExpression::WithStackValue.

Referenced by llvm::SelectionDAGISel::SelectCodeCommon().

◆ SelectNodeTo() [1/11]

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 7469 of file SelectionDAG.cpp.

References getVTList(), and llvm::None.

Referenced by llvm::AVRDAGToDAGISel::select< ISD::FrameIndex >(), llvm::SelectionDAGISel::IsLegalToFold(), SelectNodeTo(), tryBitfieldInsertOpFromOr(), and tryBitfieldInsertOpFromOrAndImm().

◆ SelectNodeTo() [2/11]

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

Definition at line 7475 of file SelectionDAG.cpp.

References getVTList(), and SelectNodeTo().

◆ SelectNodeTo() [3/11]

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

Definition at line 7482 of file SelectionDAG.cpp.

References getVTList(), and SelectNodeTo().

◆ SelectNodeTo() [4/11]

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

Definition at line 7490 of file SelectionDAG.cpp.

References getVTList(), and SelectNodeTo().

◆ SelectNodeTo() [5/11]

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

Definition at line 7498 of file SelectionDAG.cpp.

References getVTList(), and SelectNodeTo().

◆ SelectNodeTo() [6/11]

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

Definition at line 7510 of file SelectionDAG.cpp.

References getVTList(), llvm::None, and SelectNodeTo().

◆ SelectNodeTo() [7/11]

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

Definition at line 7504 of file SelectionDAG.cpp.

References getVTList(), and SelectNodeTo().

◆ SelectNodeTo() [8/11]

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

Definition at line 7516 of file SelectionDAG.cpp.

References getVTList(), and SelectNodeTo().

◆ SelectNodeTo() [9/11]

SDNode* llvm::SelectionDAG::SelectNodeTo	(	SDNode *	N,
		unsigned	TargetOpc,
		EVT	VT1,
		EVT	VT2,
		SDValue	Op1
	)

◆ SelectNodeTo() [10/11]

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

Definition at line 7523 of file SelectionDAG.cpp.

References getVTList(), and SelectNodeTo().

◆ SelectNodeTo() [11/11]

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

Definition at line 7531 of file SelectionDAG.cpp.

References llvm::SDNode::getDebugLoc(), llvm::SDLoc::getDebugLoc(), llvm::SDNode::getIROrder(), llvm::SDLoc::getIROrder(), MorphNodeTo(), N, llvm::CodeGenOpt::None, RemoveDeadNode(), ReplaceAllUsesWith(), llvm::SDNode::setDebugLoc(), llvm::SDNode::setIROrder(), and llvm::SDNode::setNodeId().

◆ setFunctionLoweringInfo()

void llvm::SelectionDAG::setFunctionLoweringInfo ( FunctionLoweringInfo * FuncInfo )

inline

Definition at line 390 of file SelectionDAG.h.

References clear().

◆ 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 182 of file SelectionDAGPrinter.cpp.

References llvm::AMDGPU::HSAMD::Kernel::Key::Attrs, 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 212 of file SelectionDAGPrinter.cpp.

References llvm::SDNodeIterator::begin(), llvm::dbgs(), llvm::SDNodeIterator::end(), llvm::errs(), llvm::detail::DenseSetImpl< ValueT, DenseMap< ValueT, detail::DenseSetEmpty, ValueInfoT, detail::DenseSetPair< ValueT > >, ValueInfoT >::insert(), LLVM_DEBUG, N, and llvm::detail::DenseSetImpl< ValueT, DenseMap< ValueT, detail::DenseSetEmpty, ValueInfoT, detail::DenseSetPair< ValueT > >, ValueInfoT >::size().

◆ setNodeMemRefs()

void SelectionDAG::setNodeMemRefs	(	MachineSDNode *	N,
		ArrayRef< MachineMemOperand *>	NewMemRefs
	)

Mutate the specified machine node's memory references to the provided list.

Definition at line 7445 of file SelectionDAG.cpp.

References llvm::MachineSDNode::clearMemRefs(), llvm::copy(), llvm::ArrayRef< T >::empty(), and llvm::ArrayRef< T >::size().

Referenced by llvm::AVRDAGToDAGISel::select< ISD::LOAD >(), llvm::AVRDAGToDAGISel::select< ISD::STORE >(), CloneNodeWithValues(), parseTexFail(), pickOpcodeForVT(), ReplaceCMP_SWAP_128Results(), ReplaceCMP_SWAP_64Results(), llvm::HexagonDAGToDAGISel::SelectBrevLdIntrinsic(), llvm::SelectionDAGISel::SelectCodeCommon(), llvm::HexagonDAGToDAGISel::SelectIndexedLoad(), llvm::HexagonDAGToDAGISel::SelectIndexedStore(), and llvm::X86InstrInfo::unfoldMemoryOperand().

◆ setRoot()

const SDValue& llvm::SelectionDAG::setRoot ( SDValue N )

inline

Set the current root tag of the SelectionDAG.

Definition at line 466 of file SelectionDAG.h.

References assert(), llvm::checkForCycles(), getConstant(), llvm::SDValue::getNode(), llvm::SDValue::getValueType(), N, and llvm::MVT::Other.

◆ 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 256 of file SelectionDAGPrinter.cpp.

References llvm::errs().

◆ 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 2138 of file SelectionDAG.cpp.

References llvm::SDValue::getScalarValueSizeInBits(), llvm::APInt::getSignMask(), and MaskedValueIsZero().

Referenced by calculateByteProvider(), canReduceVMulWidth(), combineGatherScatter(), combineUIntToFP(), foldExtendedSignBitTest(), foldFPToIntToFP(), getCmp(), LowerVSETCC(), and simplifyDivRem().

◆ 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 7006 of file SelectionDAG.cpp.

References F(), isConstantValueOfAnyType(), llvm::SDValue::isUndef(), and T.

Referenced by combineMinNumMaxNum(), combineSelect(), ConvertSelectToConcatVector(), 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 7036 of file SelectionDAG.cpp.

References getConstant(), llvm::SDValue::getNode(), llvm::SDValue::getScalarValueSizeInBits(), getUNDEF(), llvm::SDValue::getValueType(), llvm::isNullOrNullSplat(), llvm::SDValue::isUndef(), llvm::ISD::matchUnaryPredicate(), and X.

Referenced by calculateByteProvider(), and getNode().

◆ SplitVector() [1/2]

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 provides VTs and return the low/high part.

SplitVector - Split the vector with EXTRACT_SUBVECTOR and return the low/high part.

Definition at line 9054 of file SelectionDAG.cpp.

References assert(), llvm::ISD::EXTRACT_SUBVECTOR, getConstant(), llvm::SDValue::getValueType(), llvm::EVT::getVectorNumElements(), llvm::MipsISD::Hi, and llvm::MipsISD::Lo.

Referenced by combineBitcastvxi1(), ConvertSelectToConcatVector(), getPMOVMSKB(), LowerBITCAST(), llvm::AMDGPUTargetLowering::SplitVectorLoad(), llvm::AMDGPUTargetLowering::SplitVectorStore(), and SplitVSETCC().

◆ SplitVector() [2/2]

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 1566 of file SelectionDAG.h.

References llvm::SDValue::getValueType().

◆ 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 1574 of file SelectionDAG.h.

References llvm::AMDGPU::HSAMD::Kernel::Key::Args, and llvm::SDNode::getOperand().

Referenced by llvm::X86TargetLowering::ReplaceNodeResults(), ReplaceReductionResults(), llvm::SITargetLowering::splitBinaryVectorOp(), llvm::SITargetLowering::splitUnaryVectorOp(), and SplitVSETCC().

◆ 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 7901 of file SelectionDAG.cpp.

References AddDbgValue(), assert(), llvm::DIExpression::createFragmentExpression(), getDbgValue(), GetDbgValues(), llvm::SDNode::getHasDebugValue(), llvm::SDValue::getNode(), llvm::SDValue::getResNo(), llvm::SmallVectorTemplateBase< T >::push_back(), and llvm::SDDbgValue::SDNODE.

Referenced by getNode(), isTruncateOf(), 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 8906 of file SelectionDAG.cpp.

References assert(), llvm::ISD::EXTRACT_VECTOR_ELT, llvm::ISD::FP_ROUND_INREG, getConstant(), llvm::SDNode::getFlags(), llvm::SDNode::getNumOperands(), llvm::SDNode::getNumValues(), llvm::SDNode::getOpcode(), llvm::SDNode::getOperand(), llvm::SDValue::getValueType(), llvm::SDNode::getValueType(), llvm::EVT::getVectorElementType(), llvm::EVT::getVectorVT(), llvm::EVT::isVector(), llvm::AArch64CC::NE, llvm::SmallVectorTemplateBase< T >::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 CollectOpsToWiden(), combineCCMask(), isSETCCorConvertedSETCC(), LowerVectorFP_TO_INT(), LowerVectorINT_TO_FP(), llvm::X86TargetLowering::ReplaceNodeResults(), and UnrollVectorShift().

◆ updateDivergence()

void SelectionDAG::updateDivergence ( SDNode * N )

Definition at line 8274 of file SelectionDAG.cpp.

References allnodes(), llvm::SDValue::getNode(), llvm::SDNode::getNumOperands(), llvm::SDValue::getValueType(), I, llvm::SDNode::isDivergent(), N, llvm::SDNode::ops(), llvm::MVT::Other, llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::reserve(), llvm::SDNode::SDNodeBits, and llvm::SDNode::uses().

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

◆ UpdateNodeOperands() [1/6]

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 7329 of file SelectionDAG.cpp.

References assert(), llvm::SDNode::getNumOperands(), llvm::SDNode::getOperand(), N, and updateDivergence().

Referenced by combineGatherScatter(), getExpandedMinMaxOps(), GetFPLibCall(), getFPTernOp(), getShiftAmountTyForConstant(), isTargetConstant(), isXor1OfSetCC(), llvm::SITargetLowering::legalizeTargetIndependentNode(), makeEquivalentMemoryOrdering(), moveBelowOrigChain(), operator!=(), llvm::PPCTargetLowering::PerformDAGCombine(), PrepareCall(), simplifyDivRem(), and UpdateNodeOperands().

◆ UpdateNodeOperands() [2/6]

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

Definition at line 7354 of file SelectionDAG.cpp.

References assert(), llvm::SDNode::getNumOperands(), llvm::SDNode::getOperand(), N, updateDivergence(), and UpdateNodeOperands().

◆ UpdateNodeOperands() [3/6]

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

Definition at line 7384 of file SelectionDAG.cpp.

References UpdateNodeOperands().

◆ UpdateNodeOperands() [4/6]

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

Definition at line 7390 of file SelectionDAG.cpp.

References UpdateNodeOperands().

◆ UpdateNodeOperands() [5/6]

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

Definition at line 7397 of file SelectionDAG.cpp.

References UpdateNodeOperands().

◆ UpdateNodeOperands() [6/6]

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

Definition at line 7404 of file SelectionDAG.cpp.

References assert(), llvm::ArrayRef< T >::begin(), llvm::ArrayRef< T >::end(), llvm::lltok::equal, llvm::SDNode::getNumOperands(), N, llvm::SDNode::op_begin(), llvm::ArrayRef< T >::size(), and updateDivergence().

◆ VerifyDAGDiverence()

void SelectionDAG::VerifyDAGDiverence ( )

Definition at line 8313 of file SelectionDAG.cpp.

References allnodes(), assert(), llvm::SDValue::getNode(), getTargetLoweringInfo(), llvm::SDValue::getValueType(), llvm::SDNode::isDivergent(), llvm::TargetLowering::isSDNodeAlwaysUniform(), llvm::TargetLowering::isSDNodeSourceOfDivergence(), N, llvm::SDNode::ops(), and llvm::MVT::Other.

◆ viewGraph() [1/2]

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 151 of file SelectionDAGPrinter.cpp.

References llvm::errs(), getName(), and ViewGraph().

◆ viewGraph() [2/2]

void SelectionDAG::viewGraph ( )

Definition at line 164 of file SelectionDAGPrinter.cpp.

Friends And Related Function Documentation

◆ DAGUpdateListener

friend struct DAGUpdateListener

friend

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

Definition at line 325 of file SelectionDAG.h.

Referenced by getDbgLabel(), and IsPredicateKnownToFail().

Member Data Documentation

◆ 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 321 of file SelectionDAG.h.

Referenced by FoldConstantArithmetic(), FoldConstantVectorArithmetic(), and getConstant().

◆ NodeGraphAttrs

std::map<const SDNode *, std::string> llvm::SelectionDAG::NodeGraphAttrs

Definition at line 415 of file SelectionDAG.h.

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

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

◆ AddDbgLabel()

◆ AddDbgValue()

◆ 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()

◆ clear()

◆ clearGraphAttrs()

◆ Combine()

◆ computeKnownBits() [1/2]

◆ computeKnownBits() [2/2]

◆ ComputeNumSignBits() [1/2]

◆ ComputeNumSignBits() [2/2]

◆ computeOverflowKind()

◆ CreateStackTemporary() [1/2]

◆ CreateStackTemporary() [2/2]

◆ DbgBegin()

◆ DbgEnd()

◆ DbgLabelBegin()

◆ DbgLabelEnd()

◆ DeleteNode()

◆ dump()

◆ EVTToAPFloatSemantics()

◆ expandVAArg()

◆ expandVACopy()

◆ ExtractVectorElements()

◆ FoldConstantArithmetic() [1/2]

◆ FoldConstantArithmetic() [2/2]

◆ FoldConstantVectorArithmetic()

◆ FoldSetCC()

◆ FoldSymbolOffset()

◆ getAddrSpaceCast()

◆ getAllOnesConstant()

◆ getAnyExtOrTrunc()

◆ getAtomic() [1/4]

◆ getAtomic() [2/4]

◆ getAtomic() [3/4]

◆ getAtomic() [4/4]

◆ getAtomicCmpSwap() [1/2]

◆ getAtomicCmpSwap() [2/2]

◆ getAtomicMemcpy()

◆ getAtomicMemmove()

◆ getAtomicMemset()

◆ getBasicBlock() [1/2]

◆ getBasicBlock() [2/2]

◆ getBitcast()

◆ getBlockAddress()

◆ getBoolConstant()

◆ getBoolExtOrTrunc()

◆ getBuildVector() [1/2]

◆ getBuildVector() [2/2]

◆ getCALLSEQ_END()

◆ getCALLSEQ_START()

◆ getCommutedVectorShuffle()

◆ getCondCode()

◆ getConstant() [1/3]