LLVM: llvm::sandboxir::Region Class Reference (original) (raw)

The main job of the Region is to point to new instructions generated by vectorization passes. More...

#include "[llvm/SandboxIR/Region.h](Region%5F8h%5Fsource.html)"

Public Types
using	iterator = decltype(Insts.begin())

Public Member Functions
LLVM_ABI	Region (Context &Ctx, TargetTransformInfo &TTI)
LLVM_ABI	~Region ()
Context &	getContext () const
bool	contains (Instruction *I) const
	Returns true if I is in the Region.
bool	empty () const
	Returns true if the Region has no instructions.
LLVM_ABI void	setAux (ArrayRef< Instruction * > Aux)
	Set the auxiliary vector.
const SmallVector< Instruction * > &	getAux () const
	\Returns the auxiliary vector.
LLVM_ABI void	clearAux ()
	Clears all auxiliary data.
iterator	begin ()
iterator	end ()
iterator_range< iterator >	insts ()
const ScoreBoard &	getScoreboard () const
	\Returns the ScoreBoard data structure that keeps track of instr costs.
LLVM_ABI_FOR_TEST bool	operator== (const Region &Other) const
	This is an expensive check, meant for testing.
bool	operator!= (const Region &other) const
LLVM_ABI_FOR_TEST void	dump (raw_ostream &OS) const
void	dump () const

The main job of the Region is to point to new instructions generated by vectorization passes.

It is the unit that RegionPasses operate on with their runOnRegion() function.

The region allows us to stack transformations horizontally, meaning that each transformation operates on a single region and the resulting region is the input to the next transformation, as opposed to vertically, which is the common way of applying a transformation across the whole function. This enables us to check for profitability and decide whether we accept or rollback at a region granularity, which is much better than doing this at the function level.

Definition at line 96 of file Region.h.

◆ iterator

using llvm::sandboxir::Region::iterator = decltype(Insts.begin())

◆ ~Region()

llvm::sandboxir::Region::~Region	(	)

◆ begin()

iterator llvm::sandboxir::Region::begin ( )	inline

◆ clearAux()

void llvm::sandboxir::Region::clearAux	(	)

◆ contains()

Returns true if I is in the Region.

Definition at line 150 of file Region.h.

References I.

◆ createRegionsFromMD()

Definition at line 152 of file Region.cpp.

References assert(), llvm::SmallVectorTemplateCommon< T, typename >::back(), llvm::sandboxir::BasicBlock(), llvm::cast(), llvm::dyn_cast(), llvm::errs(), F, I, llvm::SmallVectorTemplateBase< T, bool >::push_back(), Region(), and llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::try_emplace().

Referenced by llvm::sandboxir::RegionsFromMetadata::runOnFunction().

◆ dump() [1/2]

void llvm::sandboxir::Region::dump	(	)	const

◆ dump() [2/2]

void llvm::sandboxir::Region::dump	(	raw_ostream &	OS	)	const

◆ empty()

bool llvm::sandboxir::Region::empty ( ) const	inline

◆ end()

iterator llvm::sandboxir::Region::end ( )	inline

◆ getAux()

◆ getContext()

Context & llvm::sandboxir::Region::getContext ( ) const	inline

◆ getScoreboard()

◆ insts()

◆ operator!=()

bool llvm::sandboxir::Region::operator!= ( const Region & other) const	inline