llvm::RuntimeCheckingPtrGroup Struct Reference

A grouping of pointers. More...

#include "llvm/Analysis/LoopAccessAnalysis.h"

Public Member Functions
	RuntimeCheckingPtrGroup (unsigned Index, RuntimePointerChecking &RtCheck)
	Create a new pointer checking group containing a single pointer, with index Index in RtCheck.
bool	addPointer (unsigned Index, RuntimePointerChecking &RtCheck)
	Tries to add the pointer recorded in RtCheck at index Index to this pointer checking group.
bool	addPointer (unsigned Index, const SCEV *Start, const SCEV *End, unsigned AS, bool NeedsFreeze, ScalarEvolution &SE)

Public Attributes
const SCEV *	High
	The SCEV expression which represents the upper bound of all the pointers in this group.
const SCEV *	Low
	The SCEV expression which represents the lower bound of all the pointers in this group.
SmallVector< unsigned, 2 >	Members
	Indices of all the pointers that constitute this grouping.
unsigned	AddressSpace
	Address space of the involved pointers.
bool	NeedsFreeze = false
	Whether the pointer needs to be frozen after expansion, e.g.

Detailed Description

A grouping of pointers.

A single memcheck is required between two groups.

Definition at line 337 of file LoopAccessAnalysis.h.

Constructor & Destructor Documentation

RuntimeCheckingPtrGroup()

RuntimeCheckingPtrGroup::RuntimeCheckingPtrGroup	(	unsigned	Index,
		RuntimePointerChecking &	RtCheck
	)

Create a new pointer checking group containing a single pointer, with index Index in RtCheck.

Definition at line 185 of file LoopAccessAnalysis.cpp.

References Members, and llvm::SmallVectorTemplateBase< T, bool >::push_back().

Member Function Documentation

addPointer() [1/2]

bool RuntimeCheckingPtrGroup::addPointer	(	unsigned	Index,
		const SCEV *	Start,
		const SCEV *	End,
		unsigned	AS,
		bool	NeedsFreeze,
		ScalarEvolution &	SE
	)

Definition at line 397 of file LoopAccessAnalysis.cpp.

References assert(), End, getMinFromExprs(), High, Low, Members, NeedsFreeze, and llvm::SmallVectorTemplateBase< T, bool >::push_back().

addPointer() [2/2]

bool RuntimeCheckingPtrGroup::addPointer	(	unsigned	Index,
		RuntimePointerChecking &	RtCheck
	)

Tries to add the pointer recorded in RtCheck at index Index to this pointer checking group.

We can only add a pointer to a checking group if we will still be able to get the upper and lower bounds of the check. Returns true in case of success, false otherwise.

Definition at line 389 of file LoopAccessAnalysis.cpp.

References addPointer(), and llvm::RuntimePointerChecking::Pointers.

Referenced by addPointer().

Member Data Documentation

AddressSpace

unsigned llvm::RuntimeCheckingPtrGroup::AddressSpace

Address space of the involved pointers.

Definition at line 360 of file LoopAccessAnalysis.h.

Referenced by expandBounds().

High

const SCEV* llvm::RuntimeCheckingPtrGroup::High

The SCEV expression which represents the upper bound of all the pointers in this group.

Definition at line 353 of file LoopAccessAnalysis.h.

Referenced by addPointer(), and expandBounds().

Low

const SCEV* llvm::RuntimeCheckingPtrGroup::Low

The SCEV expression which represents the lower bound of all the pointers in this group.

Definition at line 356 of file LoopAccessAnalysis.h.

Referenced by addPointer(), and expandBounds().

Members

SmallVector<unsigned, 2> llvm::RuntimeCheckingPtrGroup::Members

Indices of all the pointers that constitute this grouping.

Definition at line 358 of file LoopAccessAnalysis.h.

Referenced by addPointer(), and RuntimeCheckingPtrGroup().

NeedsFreeze

bool llvm::RuntimeCheckingPtrGroup::NeedsFreeze = false

Whether the pointer needs to be frozen after expansion, e.g.

because it may be poison outside the loop.

Definition at line 363 of file LoopAccessAnalysis.h.

Referenced by addPointer(), and expandBounds().

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

• include/llvm/Analysis/LoopAccessAnalysis.h
• lib/Analysis/LoopAccessAnalysis.cpp