A recipe for handling phi nodes of integer and floating-point inductions, producing their vector values. More...

#include "Transforms/Vectorize/VPlan.h"

Inheritance diagram for llvm::VPWidenIntOrFpInductionRecipe:

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Collaboration diagram for llvm::VPWidenIntOrFpInductionRecipe:

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Public Member Functions
	VPWidenIntOrFpInductionRecipe (PHINode IV, VPValue Start, VPValue *Step, const InductionDescriptor &IndDesc, bool NeedsVectorIV)

	VPWidenIntOrFpInductionRecipe (PHINode IV, VPValue Start, VPValue Step, const InductionDescriptor &IndDesc, TruncInst Trunc, bool NeedsVectorIV)

	~VPWidenIntOrFpInductionRecipe () override=default

void	execute (VPTransformState &State) override
	Generate the vectorized and scalarized versions of the phi node as needed by their users.

void	print (raw_ostream &O, const Twine &Indent, VPSlotTracker &SlotTracker) const override
	Print the recipe.

VPValue *	getBackedgeValue () override
	Returns the incoming value from the loop backedge.

VPRecipeBase &	getBackedgeRecipe () override
	Returns the backedge value as a recipe.

VPValue *	getStepValue ()
	Returns the step value of the induction.

const VPValue *	getStepValue () const

TruncInst *	getTruncInst ()
	Returns the first defined value as TruncInst, if it is one or nullptr otherwise.

const TruncInst *	getTruncInst () const

PHINode *	getPHINode ()

const InductionDescriptor &	getInductionDescriptor () const
	Returns the induction descriptor for the recipe.

bool	isCanonical () const
	Returns true if the induction is canonical, i.e.

const Type *	getScalarType () const
	Returns the scalar type of the induction.

bool	needsVectorIV () const
	Returns true if a vector phi needs to be created for the induction.

Public Member Functions inherited from llvm::VPHeaderPHIRecipe
	~VPHeaderPHIRecipe () override=default

void	execute (VPTransformState &State) override=0
	Generate the phi nodes.

void	print (raw_ostream &O, const Twine &Indent, VPSlotTracker &SlotTracker) const override=0
	Print the recipe.

VPValue *	getStartValue ()
	Returns the start value of the phi, if one is set.

VPValue *	getStartValue () const

void	setStartValue (VPValue *V)
	Update the start value of the recipe.

virtual VPValue *	getBackedgeValue ()
	Returns the incoming value from the loop backedge.

virtual VPRecipeBase &	getBackedgeRecipe ()
	Returns the backedge value as a recipe.

Public Member Functions inherited from llvm::VPRecipeBase
	VPRecipeBase (const unsigned char SC, ArrayRef< VPValue * > Operands)

template<typename IterT >
	VPRecipeBase (const unsigned char SC, iterator_range< IterT > Operands)

virtual	~VPRecipeBase ()=default

VPBasicBlock *	getParent ()

const VPBasicBlock *	getParent () const

virtual void	execute (VPTransformState &State)=0
	The method which generates the output IR instructions that correspond to this VPRecipe, thereby "executing" the VPlan.

void	insertBefore (VPRecipeBase *InsertPos)
	Insert an unlinked recipe into a basic block immediately before the specified recipe.

void	insertBefore (VPBasicBlock &BB, iplist< VPRecipeBase >::iterator IP)
	Insert an unlinked recipe into `BB` immediately before the insertion point `IP`;.

void	insertAfter (VPRecipeBase *InsertPos)
	Insert an unlinked Recipe into a basic block immediately after the specified Recipe.

void	moveAfter (VPRecipeBase *MovePos)
	Unlink this recipe from its current VPBasicBlock and insert it into the VPBasicBlock that MovePos lives in, right after MovePos.

void	moveBefore (VPBasicBlock &BB, iplist< VPRecipeBase >::iterator I)
	Unlink this recipe and insert into BB before I.

void	removeFromParent ()
	This method unlinks 'this' from the containing basic block, but does not delete it.

iplist< VPRecipeBase >::iterator	eraseFromParent ()
	This method unlinks 'this' from the containing basic block and deletes it.

Instruction *	getUnderlyingInstr ()
	Returns the underlying instruction, if the recipe is a VPValue or nullptr otherwise.

const Instruction *	getUnderlyingInstr () const

bool	mayHaveSideEffects () const
	Returns true if the recipe may have side-effects.

bool	isPhi () const
	Returns true for PHI-like recipes.

bool	mayReadFromMemory () const
	Returns true if the recipe may read from memory.

bool	mayWriteToMemory () const
	Returns true if the recipe may write to memory.

bool	mayReadOrWriteMemory () const
	Returns true if the recipe may read from or write to memory.

Public Member Functions inherited from llvm::ilist_node_with_parent< VPRecipeBase, VPBasicBlock >
VPRecipeBase *	getPrevNode ()

const VPRecipeBase *	getPrevNode () const
	Get the previous node, or `nullptr` for the list head.

VPRecipeBase *	getNextNode ()
	Get the next node, or `nullptr` for the list tail.

const VPRecipeBase *	getNextNode () const
	Get the next node, or `nullptr` for the list tail.

Public Member Functions inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< T, Options... >::type >
self_iterator	getIterator ()

const_self_iterator	getIterator () const

reverse_self_iterator	getReverseIterator ()

const_reverse_self_iterator	getReverseIterator () const

bool	isSentinel () const
	Check whether this is the sentinel node.

Public Member Functions inherited from llvm::VPDef
	VPDef (const unsigned char SC)

virtual	~VPDef ()

VPValue *	getVPSingleValue ()
	Returns the only VPValue defined by the VPDef.

const VPValue *	getVPSingleValue () const

VPValue *	getVPValue (unsigned I)
	Returns the VPValue with index `I` defined by the VPDef.

const VPValue *	getVPValue (unsigned I) const

ArrayRef< VPValue * >	definedValues ()
	Returns an ArrayRef of the values defined by the VPDef.

ArrayRef< VPValue * >	definedValues () const
	Returns an ArrayRef of the values defined by the VPDef.

unsigned	getNumDefinedValues () const
	Returns the number of values defined by the VPDef.

unsigned	getVPDefID () const

void	dump () const
	Dump the VPDef to stderr (for debugging).

virtual void	print (raw_ostream &O, const Twine &Indent, VPSlotTracker &SlotTracker) const =0
	Each concrete VPDef prints itself.

Public Member Functions inherited from llvm::VPUser
	VPUser ()=delete

	VPUser (const VPUser &)=delete

VPUser &	operator= (const VPUser &)=delete

virtual	~VPUser ()

VPUserID	getVPUserID () const

void	addOperand (VPValue *Operand)

unsigned	getNumOperands () const

VPValue *	getOperand (unsigned N) const

void	setOperand (unsigned I, VPValue *New)

void	removeLastOperand ()

operand_iterator	op_begin ()

const_operand_iterator	op_begin () const

operand_iterator	op_end ()

const_operand_iterator	op_end () const

operand_range	operands ()

const_operand_range	operands () const

virtual bool	usesScalars (const VPValue *Op) const
	Returns true if the VPUser uses scalars of operand `Op`.

virtual bool	onlyFirstLaneUsed (const VPValue *Op) const
	Returns true if the VPUser only uses the first lane of operand `Op`.

Public Member Functions inherited from llvm::VPValue
Value *	getUnderlyingValue ()
	Return the underlying Value attached to this VPValue.

const Value *	getUnderlyingValue () const

	VPValue (Value *UV=nullptr)
	Create a live-in VPValue.

	VPValue (VPDef Def, Value UV=nullptr)
	Create a VPValue for a `Def` which is a subclass of VPValue.

	VPValue (Value UV, VPDef Def)
	Create a VPValue for a `Def` which defines multiple values.

	VPValue (const VPValue &)=delete

VPValue &	operator= (const VPValue &)=delete

virtual	~VPValue ()

unsigned	getVPValueID () const

void	printAsOperand (raw_ostream &OS, VPSlotTracker &Tracker) const

void	print (raw_ostream &OS, VPSlotTracker &Tracker) const

void	dump () const
	Dump the value to stderr (for debugging).

unsigned	getNumUsers () const

void	addUser (VPUser &User)

void	removeUser (VPUser &User)
	Remove a single `User` from the list of users.

user_iterator	user_begin ()

const_user_iterator	user_begin () const

user_iterator	user_end ()

const_user_iterator	user_end () const

user_range	users ()

const_user_range	users () const

bool	hasMoreThanOneUniqueUser ()
	Returns true if the value has more than one unique user.

void	replaceAllUsesWith (VPValue *New)

VPRecipeBase *	getDefiningRecipe ()
	Returns the recipe defining this VPValue or nullptr if it is not defined by a recipe, i.e.

const VPRecipeBase *	getDefiningRecipe () const

bool	hasDefiningRecipe () const
	Returns true if this VPValue is defined by a recipe.

Value *	getLiveInIRValue ()
	Returns the underlying IR value, if this VPValue is defined outside the scope of VPlan.

const Value *	getLiveInIRValue () const

bool	isDefinedOutsideVectorRegions () const
	Returns true if the VPValue is defined outside any vector regions, i.e.

Additional Inherited Members
Public Types inherited from llvm::VPDef
using	VPRecipeTy = enum { VPBranchOnMaskSC, VPDerivedIVSC, VPExpandSCEVSC, VPInstructionSC, VPInterleaveSC, VPReductionSC, VPReplicateSC, VPScalarIVStepsSC, VPWidenCallSC, VPWidenCanonicalIVSC, VPWidenGEPSC, VPWidenMemoryInstructionSC, VPWidenSC, VPWidenSelectSC, VPBlendSC, VPPredInstPHISC, VPCanonicalIVPHISC, VPActiveLaneMaskPHISC, VPFirstOrderRecurrencePHISC, VPWidenPHISC, VPWidenIntOrFpInductionSC, VPWidenPointerInductionSC, VPReductionPHISC, VPFirstPHISC=VPBlendSC, VPFirstHeaderPHISC=VPCanonicalIVPHISC, VPLastHeaderPHISC=VPReductionPHISC, VPLastPHISC=VPReductionPHISC, }
	An enumeration for keeping track of the concrete subclass of VPRecipeBase that is actually instantiated.

Public Types inherited from llvm::VPUser
enum class	VPUserID { Recipe , LiveOut }
	Subclass identifier (for isa/dyn_cast). More...

typedef SmallVectorImpl< VPValue * >::iterator	operand_iterator

typedef SmallVectorImpl< VPValue * >::const_iterator	const_operand_iterator

typedef iterator_range< operand_iterator >	operand_range

typedef iterator_range< const_operand_iterator >	const_operand_range

Public Types inherited from llvm::VPValue
enum	{ VPValueSC , VPVRecipeSC }
	An enumeration for keeping track of the concrete subclass of VPValue that are actually instantiated. More...

typedef SmallVectorImpl< VPUser * >::iterator	user_iterator

typedef SmallVectorImpl< VPUser * >::const_iterator	const_user_iterator

typedef iterator_range< user_iterator >	user_range

typedef iterator_range< const_user_iterator >	const_user_range

Static Public Member Functions inherited from llvm::VPHeaderPHIRecipe
static bool	classof (const VPRecipeBase *B)
	Method to support type inquiry through isa, cast, and dyn_cast.

static bool	classof (const VPValue *V)

Static Public Member Functions inherited from llvm::VPRecipeBase
static bool	classof (const VPDef *D)
	Method to support type inquiry through isa, cast, and dyn_cast.

static bool	classof (const VPUser *U)

Protected Types inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< T, Options... >::type >
using	self_iterator = ilist_iterator< ilist_detail::compute_node_options< T, Options... >::type, false, false >

using	const_self_iterator = ilist_iterator< ilist_detail::compute_node_options< T, Options... >::type, false, true >

using	reverse_self_iterator = ilist_iterator< ilist_detail::compute_node_options< T, Options... >::type, true, false >

using	const_reverse_self_iterator = ilist_iterator< ilist_detail::compute_node_options< T, Options... >::type, true, true >

Protected Member Functions inherited from llvm::VPHeaderPHIRecipe
	VPHeaderPHIRecipe (unsigned char VPDefID, Instruction UnderlyingInstr, VPValue Start=nullptr)

Protected Member Functions inherited from llvm::ilist_node_with_parent< VPRecipeBase, VPBasicBlock >
	ilist_node_with_parent ()=default

Protected Member Functions inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< T, Options... >::type >
	ilist_node_impl ()=default

Protected Member Functions inherited from llvm::VPUser
void	printOperands (raw_ostream &O, VPSlotTracker &SlotTracker) const
	Print the operands to `O`.

	VPUser (ArrayRef< VPValue * > Operands, VPUserID ID)

	VPUser (std::initializer_list< VPValue * > Operands, VPUserID ID)

template<typename IterT >
	VPUser (iterator_range< IterT > Operands, VPUserID ID)

Protected Member Functions inherited from llvm::VPValue
	VPValue (const unsigned char SC, Value UV=nullptr, VPDef Def=nullptr)

void	setUnderlyingValue (Value *Val)

Protected Attributes inherited from llvm::VPValue
Value *	UnderlyingVal

VPDef *	Def
	Pointer to the VPDef that defines this VPValue.

Detailed Description

A recipe for handling phi nodes of integer and floating-point inductions, producing their vector values.

Definition at line 1107 of file VPlan.h.

Constructor & Destructor Documentation

◆ VPWidenIntOrFpInductionRecipe() [1/2]

llvm::VPWidenIntOrFpInductionRecipe::VPWidenIntOrFpInductionRecipe	(	PHINode *	IV,
		VPValue *	Start,
		VPValue *	Step,
		const InductionDescriptor &	IndDesc,
		bool	NeedsVectorIV
	)

inline

Definition at line 1114 of file VPlan.h.

References llvm::VPUser::addOperand().

◆ VPWidenIntOrFpInductionRecipe() [2/2]

llvm::VPWidenIntOrFpInductionRecipe::VPWidenIntOrFpInductionRecipe	(	PHINode *	IV,
		VPValue *	Start,
		VPValue *	Step,
		const InductionDescriptor &	IndDesc,
		TruncInst *	Trunc,
		bool	NeedsVectorIV
	)

inline

Definition at line 1122 of file VPlan.h.

References llvm::VPUser::addOperand().

◆ ~VPWidenIntOrFpInductionRecipe()

llvm::VPWidenIntOrFpInductionRecipe::~VPWidenIntOrFpInductionRecipe ( )

overridedefault

Member Function Documentation

◆ execute()

void VPWidenIntOrFpInductionRecipe::execute ( VPTransformState & State )

overridevirtual

Generate the vectorized and scalarized versions of the phi node as needed by their users.

Implements llvm::VPHeaderPHIRecipe.

Definition at line 9239 of file LoopVectorize.cpp.

◆ getBackedgeRecipe()

VPRecipeBase & llvm::VPWidenIntOrFpInductionRecipe::getBackedgeRecipe ( )

inlineoverridevirtual

Returns the backedge value as a recipe.

The backedge value is guaranteed to be a recipe.

Reimplemented from llvm::VPHeaderPHIRecipe.

Definition at line 1151 of file VPlan.h.

References llvm_unreachable.

◆ getBackedgeValue()

VPValue * llvm::VPWidenIntOrFpInductionRecipe::getBackedgeValue ( )

inlineoverridevirtual

Returns the incoming value from the loop backedge.

Reimplemented from llvm::VPHeaderPHIRecipe.

Definition at line 1144 of file VPlan.h.

References llvm_unreachable.

◆ getInductionDescriptor()

const InductionDescriptor & llvm::VPWidenIntOrFpInductionRecipe::getInductionDescriptor ( ) const

inline

Returns the induction descriptor for the recipe.

Definition at line 1170 of file VPlan.h.

Referenced by isCanonical().

◆ getPHINode()

PHINode * llvm::VPWidenIntOrFpInductionRecipe::getPHINode ( )

inline

Definition at line 1167 of file VPlan.h.

◆ getScalarType()

const Type * llvm::VPWidenIntOrFpInductionRecipe::getScalarType ( ) const

inline

Returns the scalar type of the induction.

Definition at line 1177 of file VPlan.h.

References llvm::Value::getType().

◆ getStepValue() [1/2]

VPValue * llvm::VPWidenIntOrFpInductionRecipe::getStepValue ( )

inline

Returns the step value of the induction.

Definition at line 1159 of file VPlan.h.

References llvm::VPUser::getOperand().

Referenced by print().

◆ getStepValue() [2/2]

const VPValue * llvm::VPWidenIntOrFpInductionRecipe::getStepValue ( ) const

inline

Definition at line 1160 of file VPlan.h.

References llvm::VPUser::getOperand().

◆ getTruncInst() [1/2]

TruncInst * llvm::VPWidenIntOrFpInductionRecipe::getTruncInst ( )

inline

Returns the first defined value as TruncInst, if it is one or nullptr otherwise.

Definition at line 1164 of file VPlan.h.

Referenced by print().

◆ getTruncInst() [2/2]

const TruncInst * llvm::VPWidenIntOrFpInductionRecipe::getTruncInst ( ) const

inline

Definition at line 1165 of file VPlan.h.

◆ isCanonical()

bool VPWidenIntOrFpInductionRecipe::isCanonical ( ) const

Returns true if the induction is canonical, i.e.

starting at 0 and incremented by UF * VF (= the original IV is incremented by 1).

Definition at line 737 of file VPlanRecipes.cpp.

References getInductionDescriptor(), llvm::VPValue::getLiveInIRValue(), and llvm::VPHeaderPHIRecipe::getStartValue().

◆ needsVectorIV()

bool llvm::VPWidenIntOrFpInductionRecipe::needsVectorIV ( ) const

inline

Returns true if a vector phi needs to be created for the induction.

Definition at line 1182 of file VPlan.h.

◆ print()

void VPWidenIntOrFpInductionRecipe::print	(	raw_ostream &	O,
		const Twine &	Indent,
		VPSlotTracker &	SlotTracker
	)		const

overridevirtual

Print the recipe.

Implements llvm::VPHeaderPHIRecipe.

Definition at line 721 of file VPlanRecipes.cpp.

References getStepValue(), getTruncInst(), llvm::VPDef::getVPValue(), and llvm::VPValue::printAsOperand().

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

lib/Transforms/Vectorize/VPlan.h
lib/Transforms/Vectorize/LoopVectorize.cpp
lib/Transforms/Vectorize/VPlanRecipes.cpp

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ VPWidenIntOrFpInductionRecipe() [1/2]

◆ VPWidenIntOrFpInductionRecipe() [2/2]

◆ ~VPWidenIntOrFpInductionRecipe()

Member Function Documentation

◆ execute()

◆ getBackedgeRecipe()

◆ getBackedgeValue()

◆ getInductionDescriptor()

◆ getPHINode()

◆ getScalarType()

◆ getStepValue() [1/2]

◆ getStepValue() [2/2]

◆ getTruncInst() [1/2]

◆ getTruncInst() [2/2]

◆ isCanonical()

◆ needsVectorIV()

◆ print()