VPBlockBase is the building block of the Hierarchical Control-Flow Graph. More...

#include "Transforms/Vectorize/VPlan.h"

Inheritance diagram for llvm::VPBlockBase:

Public Types
using	VPBlockTy = enum { VPBasicBlockSC, VPRegionBlockSC }
	An enumeration for keeping track of the concrete subclass of VPBlockBase that are actually instantiated. More...

using	VPBlocksTy = SmallVectorImpl< VPBlockBase * >

Public Member Functions
virtual	~VPBlockBase ()=default

const std::string &	getName () const

void	setName (const Twine &newName)

unsigned	getVPBlockID () const

VPRegionBlock *	getParent ()

const VPRegionBlock *	getParent () const

VPlan *	getPlan ()

const VPlan *	getPlan () const

void	setPlan (VPlan *ParentPlan)
	Sets the pointer of the plan containing the block. More...

void	setParent (VPRegionBlock *P)

const VPBasicBlock *	getEntryBasicBlock () const

VPBasicBlock *	getEntryBasicBlock ()

const VPBasicBlock *	getExitingBasicBlock () const

VPBasicBlock *	getExitingBasicBlock ()

const VPBlocksTy &	getSuccessors () const

VPBlocksTy &	getSuccessors ()

iterator_range< VPBlockBase ** >	successors ()

const VPBlocksTy &	getPredecessors () const

VPBlocksTy &	getPredecessors ()

VPBlockBase *	getSingleSuccessor () const

VPBlockBase *	getSinglePredecessor () const

size_t	getNumSuccessors () const

size_t	getNumPredecessors () const

VPBlockBase *	getEnclosingBlockWithSuccessors ()
	An Enclosing Block of a block B is any block containing B, including B itself. More...

VPBlockBase *	getEnclosingBlockWithPredecessors ()

const VPBlocksTy &	getHierarchicalSuccessors ()

VPBlockBase *	getSingleHierarchicalSuccessor ()

const VPBlocksTy &	getHierarchicalPredecessors ()

VPBlockBase *	getSingleHierarchicalPredecessor ()

void	setOneSuccessor (VPBlockBase *Successor)
	Set a given VPBlockBase `Successor` as the single successor of this VPBlockBase. More...

void	setTwoSuccessors (VPBlockBase IfTrue, VPBlockBase IfFalse)
	Set two given VPBlockBases `IfTrue` and `IfFalse` to be the two successors of this VPBlockBase. More...

void	setPredecessors (ArrayRef< VPBlockBase * > NewPreds)
	Set each VPBasicBlock in `NewPreds` as predecessor of this VPBlockBase. More...

void	clearPredecessors ()
	Remove all the predecessor of this block. More...

void	clearSuccessors ()
	Remove all the successors of this block. More...

virtual void	execute (struct VPTransformState *State)=0
	The method which generates the output IR that correspond to this VPBlockBase, thereby "executing" the VPlan. More...

bool	isLegalToHoistInto ()
	Return true if it is legal to hoist instructions into this block. More...

virtual void	dropAllReferences (VPValue *NewValue)=0
	Replace all operands of VPUsers in the block with `NewValue` and also replaces all uses of VPValues defined in the block with NewValue. More...

void	printAsOperand (raw_ostream &OS, bool PrintType) const

virtual void	print (raw_ostream &O, const Twine &Indent, VPSlotTracker &SlotTracker) const =0
	Print plain-text dump of this VPBlockBase to `O`, prefixing all lines with `Indent`. More...

void	print (raw_ostream &O) const
	Print plain-text dump of this VPlan to `O`. More...

void	printSuccessors (raw_ostream &O, const Twine &Indent) const
	Print the successors of this block to `O`, prefixing all lines with `Indent`. More...

LLVM_DUMP_METHOD void	dump () const
	Dump this VPBlockBase to dbgs(). More...

Static Public Member Functions
static void	deleteCFG (VPBlockBase *Entry)
	Delete all blocks reachable from a given VPBlockBase, inclusive. More...

Protected Member Functions
	VPBlockBase (const unsigned char SC, const std::string &N)

Friends
class	VPBlockUtils

Detailed Description

VPBlockBase is the building block of the Hierarchical Control-Flow Graph.

A VPBlockBase can be either a VPBasicBlock or a VPRegionBlock.

Definition at line 385 of file VPlan.h.

Member Typedef Documentation

◆ VPBlocksTy

using llvm::VPBlockBase::VPBlocksTy = SmallVectorImpl<VPBlockBase *>

Definition at line 444 of file VPlan.h.

◆ VPBlockTy

using llvm::VPBlockBase::VPBlockTy = enum { VPBasicBlockSC, VPRegionBlockSC }

An enumeration for keeping track of the concrete subclass of VPBlockBase that are actually instantiated.

Values of this enumeration are kept in the SubclassID field of the VPBlockBase objects. They are used for concrete type identification.

Definition at line 442 of file VPlan.h.

Constructor & Destructor Documentation

◆ VPBlockBase()

llvm::VPBlockBase::VPBlockBase	(	const unsigned char	SC,
		const std::string &	N
	)

inlineprotected

Definition at line 434 of file VPlan.h.

◆ ~VPBlockBase()

virtual llvm::VPBlockBase::~VPBlockBase ( )

virtualdefault

Member Function Documentation

◆ clearPredecessors()

void llvm::VPBlockBase::clearPredecessors ( )

inline

Remove all the predecessor of this block.

Definition at line 576 of file VPlan.h.

References llvm::SmallVectorImpl< T >::clear().

◆ clearSuccessors()

void llvm::VPBlockBase::clearSuccessors ( )

inline

Remove all the successors of this block.

Definition at line 579 of file VPlan.h.

References llvm::SmallVectorImpl< T >::clear().

◆ deleteCFG()

void VPBlockBase::deleteCFG ( VPBlockBase * Entry )

static

Delete all blocks reachable from a given VPBlockBase, inclusive.

Definition at line 190 of file VPlan.cpp.

Referenced by llvm::VPRegionBlock::~VPRegionBlock().

◆ dropAllReferences()

virtual void llvm::VPBlockBase::dropAllReferences ( VPValue * NewValue )

pure virtual

Replace all operands of VPUsers in the block with NewValue and also replaces all uses of VPValues defined in the block with NewValue.

Implemented in llvm::VPRegionBlock, and llvm::VPBasicBlock.

◆ dump()

LLVM_DUMP_METHOD void llvm::VPBlockBase::dump ( ) const

inline

Dump this VPBlockBase to dbgs().

Definition at line 624 of file VPlan.h.

References llvm::dbgs(), and print().

◆ execute()

virtual void llvm::VPBlockBase::execute ( struct VPTransformState * State )

pure virtual

The method which generates the output IR that correspond to this VPBlockBase, thereby "executing" the VPlan.

Implemented in llvm::VPRegionBlock, and llvm::VPBasicBlock.

◆ getEnclosingBlockWithPredecessors()

VPBlockBase * VPBlockBase::getEnclosingBlockWithPredecessors ( )

Returns: the closest enclosing block starting from "this", which has predecessors.; the root enclosing block if all enclosing blocks have no predecessors.

Definition at line 182 of file VPlan.cpp.

References assert(), getEnclosingBlockWithPredecessors(), and llvm::VPRegionBlock::getEntry().

Referenced by getEnclosingBlockWithPredecessors(), getHierarchicalPredecessors(), and getSingleHierarchicalPredecessor().

◆ getEnclosingBlockWithSuccessors()

VPBlockBase * VPBlockBase::getEnclosingBlockWithSuccessors ( )

An Enclosing Block of a block B is any block containing B, including B itself.

Returns: the closest enclosing block starting from "this", which has successors.; the root enclosing block if all enclosing blocks have no successors.

Definition at line 174 of file VPlan.cpp.

References assert(), getEnclosingBlockWithSuccessors(), and llvm::VPRegionBlock::getExiting().

Referenced by getEnclosingBlockWithSuccessors(), getHierarchicalSuccessors(), and getSingleHierarchicalSuccessor().

◆ getEntryBasicBlock() [1/2]

VPBasicBlock* llvm::VPBlockBase::getEntryBasicBlock ( )

◆ getEntryBasicBlock() [2/2]

VPBasicBlock * VPBlockBase::getEntryBasicBlock ( ) const

Returns: the VPBasicBlock that is the entry of this VPBlockBase, recursively, if the latter is a VPRegionBlock. Otherwise, if this VPBlockBase is a VPBasicBlock, it is returned.; the VPBasicBlock that is the entry of Block, possibly indirectly.

Definition at line 139 of file VPlan.cpp.

References llvm::RegionBase< Tr >::getEntry().

Referenced by addCanonicalIVRecipes(), llvm::VPRecipeBuilder::createBlockInMask(), llvm::VPWidenPHIRecipe::execute(), llvm::LoopVectorizationPlanner::executePlan(), llvm::InnerLoopVectorizer::fixCrossIterationPHIs(), llvm::VPlan::getCanonicalIV(), llvm::vputils::getOrCreateVPValueForSCEVExpr(), llvm::VPlanTransforms::optimizeInductions(), llvm::LoopVectorizePass::processLoop(), llvm::VPlanTransforms::removeRedundantCanonicalIVs(), llvm::VPlanTransforms::removeRedundantExpandSCEVRecipes(), and llvm::VPlanTransforms::removeRedundantInductionCasts().

◆ getExitingBasicBlock() [1/2]

VPBasicBlock* llvm::VPBlockBase::getExitingBasicBlock ( )

◆ getExitingBasicBlock() [2/2]

VPBasicBlock * VPBlockBase::getExitingBasicBlock ( ) const

Returns: the VPBasicBlock that is the exiting this VPBlockBase, recursively, if the latter is a VPRegionBlock. Otherwise, if this VPBlockBase is a VPBasicBlock, it is returned.; the VPBasicBlock that is the exit of Block, possibly indirectly.

Definition at line 160 of file VPlan.cpp.

Referenced by addCanonicalIVRecipes(), llvm::VPWidenPHIRecipe::execute(), llvm::VPBasicBlock::execute(), llvm::InnerLoopVectorizer::fixReduction(), llvm::InnerLoopVectorizer::fixVectorizedLoop(), llvm::VPRegionBlock::getPreheaderVPBB(), and llvm::VPlan::prepareToExecute().

◆ getHierarchicalPredecessors()

const VPBlocksTy& llvm::VPBlockBase::getHierarchicalPredecessors ( )

inline

Returns: the predecessors either attached directly to this VPBlockBase or, if this VPBlockBase is the entry block of a VPRegionBlock and has no predecessors of its own, search recursively for the first enclosing VPRegionBlock that has predecessors and return them. If no such VPRegionBlock exists, return the (empty) predecessors of the topmost VPBlockBase reached.

Definition at line 538 of file VPlan.h.

References getEnclosingBlockWithPredecessors(), and getPredecessors().

◆ getHierarchicalSuccessors()

const VPBlocksTy& llvm::VPBlockBase::getHierarchicalSuccessors ( )

inline

Returns: the successors either attached directly to this VPBlockBase or, if this VPBlockBase is the exit block of a VPRegionBlock and has no successors of its own, search recursively for the first enclosing VPRegionBlock that has successors and return them. If no such VPRegionBlock exists, return the (empty) successors of the topmost VPBlockBase reached.

Definition at line 522 of file VPlan.h.

References getEnclosingBlockWithSuccessors(), and getSuccessors().

◆ getName()

const std::string& llvm::VPBlockBase::getName ( ) const

inline

Definition at line 448 of file VPlan.h.

Referenced by printAsOperand().

◆ getNumPredecessors()

size_t llvm::VPBlockBase::getNumPredecessors ( ) const

inline

Definition at line 503 of file VPlan.h.

◆ getNumSuccessors()

size_t llvm::VPBlockBase::getNumSuccessors ( ) const

inline

Definition at line 502 of file VPlan.h.

Referenced by hasConditionalTerminator().

◆ getParent() [1/2]

VPRegionBlock* llvm::VPBlockBase::getParent ( )

inline

Definition at line 457 of file VPlan.h.

Referenced by llvm::VPBlockUtils::connectBlocks(), llvm::VPBasicBlock::execute(), llvm::VPBlockUtils::insertBlockAfter(), llvm::VPBlockUtils::insertTwoBlocksAfter(), and llvm::VPlanVerifier::verifyHierarchicalCFG().

◆ getParent() [2/2]

const VPRegionBlock* llvm::VPBlockBase::getParent ( ) const

inline

Definition at line 458 of file VPlan.h.

◆ getPlan() [1/2]

const VPlan * VPBlockBase::getPlan ( )

Returns: A pointer to the plan containing the current block.

Definition at line 134 of file VPlan.cpp.

References getPlanEntry().

Referenced by llvm::VPValue::dump(), llvm::VPDef::dump(), llvm::operator<<(), and print().

◆ getPlan() [2/2]

const VPlan* llvm::VPBlockBase::getPlan ( ) const

◆ getPredecessors() [1/2]

VPBlocksTy& llvm::VPBlockBase::getPredecessors ( )

inline

Definition at line 488 of file VPlan.h.

◆ getPredecessors() [2/2]

const VPBlocksTy& llvm::VPBlockBase::getPredecessors ( ) const

inline

Definition at line 487 of file VPlan.h.

Referenced by getHierarchicalPredecessors(), llvm::VPBlockUtils::insertBlockAfter(), and llvm::VPRegionBlock::setEntry().

◆ getSingleHierarchicalPredecessor()

VPBlockBase* llvm::VPBlockBase::getSingleHierarchicalPredecessor ( )

inline

Returns: the hierarchical predecessor of this VPBlockBase if it has a single hierarchical predecessor. Otherwise return a null pointer.

Definition at line 544 of file VPlan.h.

References getEnclosingBlockWithPredecessors(), and getSinglePredecessor().

◆ getSingleHierarchicalSuccessor()

VPBlockBase* llvm::VPBlockBase::getSingleHierarchicalSuccessor ( )

inline

Returns: the hierarchical successor of this VPBlockBase if it has a single hierarchical successor. Otherwise return a null pointer.

Definition at line 528 of file VPlan.h.

References getEnclosingBlockWithSuccessors(), and getSingleSuccessor().

Referenced by llvm::VPBasicBlock::execute().

◆ getSinglePredecessor()

VPBlockBase* llvm::VPBlockBase::getSinglePredecessor ( ) const

inline

Returns: the predecessor of this VPBlockBase if it has a single predecessor. Otherwise return a null pointer.

Definition at line 498 of file VPlan.h.

Referenced by llvm::VPWidenPHIRecipe::execute(), llvm::VPRegionBlock::getPreheaderVPBB(), and getSingleHierarchicalPredecessor().

◆ getSingleSuccessor()

VPBlockBase* llvm::VPBlockBase::getSingleSuccessor ( ) const

inline

Returns: the successor of this VPBlockBase if it has a single successor. Otherwise return a null pointer.

Definition at line 492 of file VPlan.h.

Referenced by llvm::VPBasicBlock::execute(), llvm::VPlan::getCanonicalIV(), getSingleHierarchicalSuccessor(), llvm::VPRecipeBuilder::handleReplication(), and llvm::VPlanTransforms::mergeReplicateRegions().

◆ getSuccessors() [1/2]

VPBlocksTy& llvm::VPBlockBase::getSuccessors ( )

inline

Definition at line 483 of file VPlan.h.

◆ getSuccessors() [2/2]

const VPBlocksTy& llvm::VPBlockBase::getSuccessors ( ) const

inline

Definition at line 482 of file VPlan.h.

Referenced by getHierarchicalSuccessors(), llvm::VPBlockUtils::insertBlockAfter(), llvm::VPBlockUtils::insertTwoBlocksAfter(), llvm::VPRegionBlock::setExiting(), and llvm::VPRegionBlock::VPRegionBlock().

◆ getVPBlockID()

unsigned llvm::VPBlockBase::getVPBlockID ( ) const

inline

Returns: an ID for the concrete type of this object. This is used to implement the classof checks. This should not be used for any other purpose, as the values may change as LLVM evolves.

Definition at line 455 of file VPlan.h.

Referenced by llvm::VPBasicBlock::classof(), and llvm::VPRegionBlock::classof().

◆ isLegalToHoistInto()

bool llvm::VPBlockBase::isLegalToHoistInto ( )

inline

Return true if it is legal to hoist instructions into this block.

Definition at line 589 of file VPlan.h.

◆ print() [1/2]

void llvm::VPBlockBase::print ( raw_ostream & O ) const

inline

Print plain-text dump of this VPlan to O.

Definition at line 614 of file VPlan.h.

References getPlan(), llvm::RISCVFenceField::O, and print().

◆ print() [2/2]

virtual void llvm::VPBlockBase::print	(	raw_ostream &	O,
		const Twine &	Indent,
		VPSlotTracker &	SlotTracker
	)		const

pure virtual

Print plain-text dump of this VPBlockBase to O, prefixing all lines with Indent.

SlotTracker is used to print unnamed VPValue's using consequtive numbers.

Note that the numbering is applied to the whole VPlan, so printing individual blocks is consistent with the whole VPlan printing.

Implemented in llvm::VPRegionBlock, and llvm::VPBasicBlock.

Referenced by dump(), and print().

◆ printAsOperand()

void llvm::VPBlockBase::printAsOperand	(	raw_ostream &	OS,
		bool	PrintType
	)		const

inline

Definition at line 600 of file VPlan.h.

References getName().

◆ printSuccessors()

void VPBlockBase::printSuccessors	(	raw_ostream &	O,
		const Twine &	Indent
	)		const

Print the successors of this block to O, prefixing all lines with Indent.

Definition at line 473 of file VPlan.cpp.

References llvm::empty(), llvm::AArch64CC::LS, and llvm::RISCVFenceField::O.

◆ setName()

void llvm::VPBlockBase::setName ( const Twine & newName )

inline

Definition at line 450 of file VPlan.h.

References llvm::Twine::str().

Referenced by llvm::LoopVectorizePass::processLoop().

◆ setOneSuccessor()

void llvm::VPBlockBase::setOneSuccessor ( VPBlockBase * Successor )

inline

Set a given VPBlockBase Successor as the single successor of this VPBlockBase.

This VPBlockBase is not added as predecessor of Successor. This VPBlockBase must have no successors.

Definition at line 551 of file VPlan.h.

References assert(), and llvm::Successor.

◆ setParent()

void llvm::VPBlockBase::setParent ( VPRegionBlock * P )

inline

Definition at line 468 of file VPlan.h.

References P.

Referenced by llvm::VPBlockUtils::insertBlockAfter(), llvm::VPBlockUtils::insertTwoBlocksAfter(), llvm::VPRegionBlock::setEntry(), llvm::VPRegionBlock::setExiting(), and llvm::VPRegionBlock::VPRegionBlock().

◆ setPlan()

void VPBlockBase::setPlan ( VPlan * ParentPlan )

Sets the pointer of the plan containing the block.

The block must be the entry block into the VPlan.

Definition at line 153 of file VPlan.cpp.

References assert(), and llvm::VPlan::getEntry().

◆ setPredecessors()

void llvm::VPBlockBase::setPredecessors ( ArrayRef< VPBlockBase * > NewPreds )

inline

Set each VPBasicBlock in NewPreds as predecessor of this VPBlockBase.

This VPBlockBase must have no predecessors. This VPBlockBase is not added as successor of any VPBasicBlock in NewPreds.

Definition at line 569 of file VPlan.h.

References assert().

Referenced by llvm::VPBlockUtils::insertTwoBlocksAfter().

◆ setTwoSuccessors()

void llvm::VPBlockBase::setTwoSuccessors	(	VPBlockBase *	IfTrue,
		VPBlockBase *	IfFalse
	)

inline

Set two given VPBlockBases IfTrue and IfFalse to be the two successors of this VPBlockBase.

This VPBlockBase is not added as predecessor of IfTrue or IfFalse. This VPBlockBase must have no successors.

Definition at line 560 of file VPlan.h.

References assert().

Referenced by llvm::VPBlockUtils::insertTwoBlocksAfter().

◆ successors()

iterator_range<VPBlockBase **> llvm::VPBlockBase::successors ( )

inline

Definition at line 485 of file VPlan.h.

Referenced by llvm::VPBlockUtils::insertBlockAfter().

Friends And Related Function Documentation

◆ VPBlockUtils

friend class VPBlockUtils

friend

Definition at line 386 of file VPlan.h.

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

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

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Friends

Detailed Description

Member Typedef Documentation

◆ VPBlocksTy

◆ VPBlockTy

Constructor & Destructor Documentation

◆ VPBlockBase()

◆ ~VPBlockBase()

Member Function Documentation

◆ clearPredecessors()

◆ clearSuccessors()

◆ deleteCFG()

◆ dropAllReferences()

◆ dump()

◆ execute()

◆ getEnclosingBlockWithPredecessors()

◆ getEnclosingBlockWithSuccessors()

◆ getEntryBasicBlock() [1/2]

◆ getEntryBasicBlock() [2/2]

◆ getExitingBasicBlock() [1/2]

◆ getExitingBasicBlock() [2/2]

◆ getHierarchicalPredecessors()

◆ getHierarchicalSuccessors()

◆ getName()

◆ getNumPredecessors()

◆ getNumSuccessors()

◆ getParent() [1/2]

◆ getParent() [2/2]

◆ getPlan() [1/2]

◆ getPlan() [2/2]

◆ getPredecessors() [1/2]

◆ getPredecessors() [2/2]

◆ getSingleHierarchicalPredecessor()

◆ getSingleHierarchicalSuccessor()

◆ getSinglePredecessor()

◆ getSingleSuccessor()

◆ getSuccessors() [1/2]

◆ getSuccessors() [2/2]

◆ getVPBlockID()

◆ isLegalToHoistInto()

◆ print() [1/2]

◆ print() [2/2]

◆ printAsOperand()

◆ printSuccessors()

◆ setName()

◆ setOneSuccessor()

◆ setParent()

◆ setPlan()

◆ setPredecessors()

◆ setTwoSuccessors()

◆ successors()

Friends And Related Function Documentation

◆ VPBlockUtils