A recipe representing a sequence of load -> update -> store as part of a histogram operation. More...

#include "Transforms/Vectorize/VPlan.h"

Inheritance diagram for llvm::VPHistogramRecipe:

Public Member Functions
	VPHistogramRecipe (unsigned Opcode, ArrayRef< VPValue * > Operands, DebugLoc DL=DebugLoc::getUnknown())
	~VPHistogramRecipe () override=default
VPHistogramRecipe *	clone () override
	Clone the current recipe.
	VP_CLASSOF_IMPL (VPDef::VPHistogramSC)
void	execute (VPTransformState &State) override
	Produce a vectorized histogram operation.
InstructionCost	computeCost (ElementCount VF, VPCostContext &Ctx) const override
	Return the cost of this VPHistogramRecipe.
unsigned	getOpcode () const
VPValue *	getMask () const
	Return the mask operand if one was provided, or a null pointer if all lanes should be executed unconditionally.
void	print (raw_ostream &O, const Twine &Indent, VPSlotTracker &SlotTracker) const override
	Print the recipe.
Public Member Functions inherited from llvm::VPRecipeBase
	VPRecipeBase (const unsigned char SC, ArrayRef< VPValue * > Operands, DebugLoc DL=DebugLoc::getUnknown())
virtual	~VPRecipeBase ()=default
VPBasicBlock *	getParent ()
const VPBasicBlock *	getParent () const
InstructionCost	cost (ElementCount VF, VPCostContext &Ctx)
	Return the cost of this recipe, taking into account if the cost computation should be skipped and the ForceTargetInstructionCost flag.
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.
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.
DebugLoc	getDebugLoc () const
	Returns the debug location of the recipe.
bool	isScalarCast () const
	Return true if the recipe is a scalar cast.
void	setDebugLoc (DebugLoc NewDL)
	Set the recipe's debug location to `NewDL`.
Public Member Functions inherited from llvm::ilist_node_with_parent< VPRecipeBase, VPBasicBlock >
VPRecipeBase *	getPrevNode ()
VPRecipeBase *	getNextNode ()
	Get the next node, or `nullptr` for the list tail.
Public Member Functions inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< VPRecipeBase, Options... >::type >
self_iterator	getIterator ()
reverse_self_iterator	getReverseIterator ()
std::enable_if_t< T::is_sentinel_tracking_explicit, bool >	isSentinel () const
	Check whether this is the sentinel node.
Public Member Functions inherited from llvm::ilist_detail::node_parent_access< ilist_node_impl< ilist_detail::compute_node_options< VPRecipeBase, Options... >::type >, ilist_detail::compute_node_options< VPRecipeBase, Options... >::type::parent_ty >
const ilist_detail::compute_node_options< VPRecipeBase, Options... >::type::parent_ty *	getParent () const
void	setParent (ilist_detail::compute_node_options< VPRecipeBase, Options... >::type::parent_ty *Parent)
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).
Public Member Functions inherited from llvm::VPUser
	VPUser ()=delete
	VPUser (const VPUser &)=delete
VPUser &	operator= (const VPUser &)=delete
virtual	~VPUser ()
void	addOperand (VPValue *Operand)
unsigned	getNumOperands () const
VPValue *	getOperand (unsigned N) const
void	setOperand (unsigned I, VPValue *New)
void	swapOperands ()
	Swap operands of the VPUser. It must have exactly 2 operands.
void	replaceUsesOfWith (VPValue From, VPValue To)
	Replaces all uses of `From` in the VPUser with `To`.
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`.
virtual bool	onlyFirstPartUsed (const VPValue *Op) const
	Returns true if the VPUser only uses the first part of operand `Op`.

Additional Inherited Members
Public Types inherited from llvm::VPDef
using	VPRecipeTy
	An enumeration for keeping track of the concrete subclass of VPRecipeBase that is actually instantiated.
Public Types inherited from llvm::VPUser
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
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< VPRecipeBase, Options... >::type >
using	self_iterator
using	const_self_iterator
using	reverse_self_iterator
using	const_reverse_self_iterator
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< VPRecipeBase, 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)

Detailed Description

A recipe representing a sequence of load -> update -> store as part of a histogram operation.

This means there may be aliasing between vector lanes, which is handled by the llvm.experimental.vector.histogram family of intrinsics. The only update operations currently supported are 'add' and 'sub' where the other term is loop-invariant.

Definition at line 1682 of file VPlan.h.

Constructor & Destructor Documentation

◆ VPHistogramRecipe()

llvm::VPHistogramRecipe::VPHistogramRecipe	(	unsigned	Opcode,
		ArrayRef< VPValue * >	Operands,
		DebugLoc	DL = DebugLoc::getUnknown() )

inline

Definition at line 1687 of file VPlan.h.

References llvm::DebugLoc::getUnknown(), and llvm::VPRecipeBase::VPRecipeBase().

Referenced by clone().

◆ ~VPHistogramRecipe()

llvm::VPHistogramRecipe::~VPHistogramRecipe ( )

overridedefault

Member Function Documentation

◆ clone()

VPHistogramRecipe * llvm::VPHistogramRecipe::clone ( )

inlineoverridevirtual

Clone the current recipe.

Implements llvm::VPRecipeBase.

Definition at line 1693 of file VPlan.h.

References llvm::VPRecipeBase::getDebugLoc(), llvm::VPUser::operands(), and VPHistogramRecipe().

◆ computeCost()

InstructionCost VPHistogramRecipe::computeCost	(	ElementCount	VF,
		VPCostContext &	Ctx ) const

overridevirtual

Return the cost of this VPHistogramRecipe.

Reimplemented from llvm::VPRecipeBase.

Definition at line 1875 of file VPlanRecipes.cpp.

References assert(), llvm::dyn_cast(), llvm::VectorType::get(), llvm::Type::getInt1Ty(), llvm::VPValue::getLiveInIRValue(), llvm::VPUser::getOperand(), llvm::Type::getVoidTy(), llvm::ConstantInt::getZExtValue(), llvm::VPValue::isLiveIn(), llvm::ElementCount::isVector(), and llvm::TargetTransformInfo::TCC_Free.

◆ execute()

void VPHistogramRecipe::execute ( VPTransformState & State )

overridevirtual

Produce a vectorized histogram operation.

Implements llvm::VPRecipeBase.

Definition at line 1846 of file VPlanRecipes.cpp.

References llvm::Address, assert(), llvm::cast(), llvm::VectorType::getElementCount(), getMask(), llvm::VPUser::getOperand(), and llvm::Value::getType().

◆ getMask()

VPValue * llvm::VPHistogramRecipe::getMask ( ) const

inline

Return the mask operand if one was provided, or a null pointer if all lanes should be executed unconditionally.

Definition at line 1710 of file VPlan.h.

References llvm::VPUser::getNumOperands(), and llvm::VPUser::getOperand().

Referenced by execute(), and print().

◆ getOpcode()

unsigned llvm::VPHistogramRecipe::getOpcode ( ) const

inline

Definition at line 1706 of file VPlan.h.

◆ print()

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

overridevirtual

Print the recipe.

Implements llvm::VPDef.

Definition at line 1912 of file VPlanRecipes.cpp.

References assert(), getMask(), llvm::VPUser::getOperand(), and llvm::VPValue::printAsOperand().

◆ VP_CLASSOF_IMPL()

llvm::VPHistogramRecipe::VP_CLASSOF_IMPL ( VPDef::VPHistogramSC )

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

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

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ VPHistogramRecipe()

◆ ~VPHistogramRecipe()

Member Function Documentation

◆ clone()

◆ computeCost()

◆ execute()

◆ getMask()

◆ getOpcode()

◆ print()

◆ VP_CLASSOF_IMPL()