DataflowValues. Container class to store dataflow values for a CFG. More...

#include "clang/Analysis/FlowSensitive/DataflowValues.h"

Public Types
using	ValTy = typename ValueTypes::ValTy

using	AnalysisDataTy = typename ValueTypes::AnalysisDataTy

using	AnalysisDirTag = _AnalysisDirTag

using	EdgeDataMapTy = llvm::DenseMap< ProgramPoint, ValTy >

using	BlockDataMapTy = llvm::DenseMap< const CFGBlock *, ValTy >

using	StmtDataMapTy = llvm::DenseMap< const Stmt *, ValTy >

Public Member Functions
bool	isForwardAnalysis ()
	isForwardAnalysis - Returns true if the dataflow values are computed from a forward analysis.

bool	isBackwardAnalysis ()
	isBackwardAnalysis - Returns true if the dataflow values are computed from a backward analysis.

	DataflowValues ()

	~DataflowValues ()

void	InitializeValues (const CFG &cfg)
	InitializeValues - Invoked by the solver to initialize state needed for dataflow analysis.

ValTy &	getEdgeData (const BlockEdge &E)
	getEdgeData - Retrieves the dataflow values associated with a CFG edge.

const ValTy &	getEdgeData (const BlockEdge &E) const

ValTy &	getBlockData (const CFGBlock *B)
	getBlockData - Retrieves the dataflow values associated with a specified CFGBlock.

const ValTy &	getBlockData (const CFGBlock *B) const

ValTy &	getStmtData (const Stmt *S)
	getStmtData - Retrieves the dataflow values associated with a specified Stmt.

const ValTy &	getStmtData (const Stmt *S) const

EdgeDataMapTy &	getEdgeDataMap ()
	getEdgeDataMap - Retrieves the internal map between CFG edges and dataflow values.

const EdgeDataMapTy &	getEdgeDataMap () const

BlockDataMapTy &	getBlockDataMap ()
	getBlockDataMap - Retrieves the internal map between CFGBlocks and dataflow values.

const BlockDataMapTy &	getBlockDataMap () const

StmtDataMapTy &	getStmtDataMap ()
	getStmtDataMap - Retrieves the internal map between Stmts and dataflow values.

const StmtDataMapTy &	getStmtDataMap () const

AnalysisDataTy &	getAnalysisData ()
	getAnalysisData - Retrieves the meta data associated with a dataflow analysis for analyzing a particular CFG.

const AnalysisDataTy &	getAnalysisData () const

Protected Attributes
EdgeDataMapTy	EdgeDataMap

BlockDataMapTy	BlockDataMap

StmtDataMapTy *	StmtDataMap

AnalysisDataTy	AnalysisData

Detailed Description

template<typename ValueTypes, typename _AnalysisDirTag = dataflow::forward_analysis_tag>
class clang::DataflowValues< ValueTypes, _AnalysisDirTag >

DataflowValues. Container class to store dataflow values for a CFG.

Definition at line 41 of file DataflowValues.h.

Member Typedef Documentation

◆ AnalysisDataTy

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

using clang::DataflowValues< ValueTypes, _AnalysisDirTag >::AnalysisDataTy = typename ValueTypes::AnalysisDataTy

Definition at line 49 of file DataflowValues.h.

◆ AnalysisDirTag

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

using clang::DataflowValues< ValueTypes, _AnalysisDirTag >::AnalysisDirTag = _AnalysisDirTag

Definition at line 50 of file DataflowValues.h.

◆ BlockDataMapTy

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

using clang::DataflowValues< ValueTypes, _AnalysisDirTag >::BlockDataMapTy = llvm::DenseMap<const CFGBlock *, ValTy>

Definition at line 52 of file DataflowValues.h.

◆ EdgeDataMapTy

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

using clang::DataflowValues< ValueTypes, _AnalysisDirTag >::EdgeDataMapTy = llvm::DenseMap<ProgramPoint, ValTy>

Definition at line 51 of file DataflowValues.h.

◆ StmtDataMapTy

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

using clang::DataflowValues< ValueTypes, _AnalysisDirTag >::StmtDataMapTy = llvm::DenseMap<const Stmt *, ValTy>

Definition at line 53 of file DataflowValues.h.

◆ ValTy

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

using clang::DataflowValues< ValueTypes, _AnalysisDirTag >::ValTy = typename ValueTypes::ValTy

Definition at line 48 of file DataflowValues.h.

Constructor & Destructor Documentation

◆ DataflowValues()

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

clang::DataflowValues< ValueTypes, _AnalysisDirTag >::DataflowValues ( )

inline

Definition at line 77 of file DataflowValues.h.

◆ ~DataflowValues()

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

clang::DataflowValues< ValueTypes, _AnalysisDirTag >::~DataflowValues ( )

inline

Definition at line 78 of file DataflowValues.h.

References clang::DataflowValues< ValueTypes, _AnalysisDirTag >::StmtDataMap.

Member Function Documentation

◆ getAnalysisData() [1/2]

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

AnalysisDataTy & clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getAnalysisData ( )

inline

getAnalysisData - Retrieves the meta data associated with a dataflow analysis for analyzing a particular CFG.

This is typically consumed by transfer function code (via the solver). This can also be used by subclasses to interpret the dataflow values.

Definition at line 157 of file DataflowValues.h.

References clang::DataflowValues< ValueTypes, _AnalysisDirTag >::AnalysisData.

◆ getAnalysisData() [2/2]

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

const AnalysisDataTy & clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getAnalysisData ( ) const

inline

Definition at line 158 of file DataflowValues.h.

References clang::DataflowValues< ValueTypes, _AnalysisDirTag >::AnalysisData.

◆ getBlockData() [1/2]

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

ValTy & clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getBlockData ( const CFGBlock * B )

inline

getBlockData - Retrieves the dataflow values associated with a specified CFGBlock.

If the dataflow analysis is a forward analysis, this data is associated with the END of the block. If the analysis is a backwards analysis, it is associated with the ENTRY of the block.

Definition at line 101 of file DataflowValues.h.

References clang::DataflowValues< ValueTypes, _AnalysisDirTag >::BlockDataMap.

Referenced by clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getBlockData().

◆ getBlockData() [2/2]

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

const ValTy & clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getBlockData ( const CFGBlock * B ) const

inline

Definition at line 107 of file DataflowValues.h.

References clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getBlockData().

◆ getBlockDataMap() [1/2]

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

BlockDataMapTy & clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getBlockDataMap ( )

inline

getBlockDataMap - Retrieves the internal map between CFGBlocks and dataflow values.

If the dataflow analysis operates in the forward direction, the values correspond to the dataflow values at the start of the block. Otherwise, for a backward analysis, the values correspond to the dataflow values at the end of the block.

Definition at line 139 of file DataflowValues.h.

References clang::DataflowValues< ValueTypes, _AnalysisDirTag >::BlockDataMap.

◆ getBlockDataMap() [2/2]

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

const BlockDataMapTy & clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getBlockDataMap ( ) const

inline

Definition at line 140 of file DataflowValues.h.

References clang::DataflowValues< ValueTypes, _AnalysisDirTag >::BlockDataMap.

◆ getEdgeData() [1/2]

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

ValTy & clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getEdgeData ( const BlockEdge & E )

inline

getEdgeData - Retrieves the dataflow values associated with a CFG edge.

Definition at line 87 of file DataflowValues.h.

References E, and clang::DataflowValues< ValueTypes, _AnalysisDirTag >::EdgeDataMap.

Referenced by clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getEdgeData().

◆ getEdgeData() [2/2]

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

const ValTy & clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getEdgeData ( const BlockEdge & E ) const

inline

Definition at line 93 of file DataflowValues.h.

References E, and clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getEdgeData().

◆ getEdgeDataMap() [1/2]

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

EdgeDataMapTy & clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getEdgeDataMap ( )

inline

getEdgeDataMap - Retrieves the internal map between CFG edges and dataflow values.

Usually used by a dataflow solver to compute values for blocks.

Definition at line 131 of file DataflowValues.h.

References clang::DataflowValues< ValueTypes, _AnalysisDirTag >::EdgeDataMap.

◆ getEdgeDataMap() [2/2]

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

const EdgeDataMapTy & clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getEdgeDataMap ( ) const

inline

Definition at line 132 of file DataflowValues.h.

References clang::DataflowValues< ValueTypes, _AnalysisDirTag >::EdgeDataMap.

◆ getStmtData() [1/2]

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

ValTy & clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getStmtData ( const Stmt * S )

inline

getStmtData - Retrieves the dataflow values associated with a specified Stmt.

If the dataflow analysis is a forward analysis, this data corresponds to the point immediately before a Stmt. If the analysis is a backwards analysis, it is associated with the point after a Stmt. This data is only computed for block-level expressions, and only when requested when the analysis is executed.

Definition at line 117 of file DataflowValues.h.

References clang::DataflowValues< ValueTypes, _AnalysisDirTag >::StmtDataMap.

Referenced by clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getStmtData().

◆ getStmtData() [2/2]

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

const ValTy & clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getStmtData ( const Stmt * S ) const

inline

Definition at line 124 of file DataflowValues.h.

References clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getStmtData().

◆ getStmtDataMap() [1/2]

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

StmtDataMapTy & clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getStmtDataMap ( )

inline

getStmtDataMap - Retrieves the internal map between Stmts and dataflow values.

Definition at line 144 of file DataflowValues.h.

References clang::DataflowValues< ValueTypes, _AnalysisDirTag >::StmtDataMap.

Referenced by clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getStmtDataMap().

◆ getStmtDataMap() [2/2]

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

const StmtDataMapTy & clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getStmtDataMap ( ) const

inline

Definition at line 149 of file DataflowValues.h.

References clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getStmtDataMap().

◆ InitializeValues()

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

void clang::DataflowValues< ValueTypes, _AnalysisDirTag >::InitializeValues ( const CFG & cfg )

inline

InitializeValues - Invoked by the solver to initialize state needed for dataflow analysis.

This method is usually specialized by subclasses.

Definition at line 82 of file DataflowValues.h.

◆ isBackwardAnalysis()

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

bool clang::DataflowValues< ValueTypes, _AnalysisDirTag >::isBackwardAnalysis ( )

inline

isBackwardAnalysis - Returns true if the dataflow values are computed from a backward analysis.

Definition at line 66 of file DataflowValues.h.

References clang::DataflowValues< ValueTypes, _AnalysisDirTag >::isForwardAnalysis().

◆ isForwardAnalysis()

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

bool clang::DataflowValues< ValueTypes, _AnalysisDirTag >::isForwardAnalysis ( )

inline

isForwardAnalysis - Returns true if the dataflow values are computed from a forward analysis.

Definition at line 62 of file DataflowValues.h.

References clang::DataflowValues< ValueTypes, _AnalysisDirTag >::isForwardAnalysis().

Referenced by clang::DataflowValues< ValueTypes, _AnalysisDirTag >::isBackwardAnalysis(), and clang::DataflowValues< ValueTypes, _AnalysisDirTag >::isForwardAnalysis().

Member Data Documentation

◆ AnalysisData

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

AnalysisDataTy clang::DataflowValues< ValueTypes, _AnalysisDirTag >::AnalysisData

protected

Definition at line 168 of file DataflowValues.h.

Referenced by clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getAnalysisData().

◆ BlockDataMap

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

BlockDataMapTy clang::DataflowValues< ValueTypes, _AnalysisDirTag >::BlockDataMap

protected

Definition at line 166 of file DataflowValues.h.

Referenced by clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getBlockData(), and clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getBlockDataMap().

◆ EdgeDataMap

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

EdgeDataMapTy clang::DataflowValues< ValueTypes, _AnalysisDirTag >::EdgeDataMap

protected

Definition at line 165 of file DataflowValues.h.

Referenced by clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getEdgeData(), and clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getEdgeDataMap().

◆ StmtDataMap

template<typename ValueTypes , typename _AnalysisDirTag = dataflow::forward_analysis_tag>

StmtDataMapTy* clang::DataflowValues< ValueTypes, _AnalysisDirTag >::StmtDataMap

protected

Definition at line 167 of file DataflowValues.h.

Referenced by clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getStmtData(), clang::DataflowValues< ValueTypes, _AnalysisDirTag >::getStmtDataMap(), and clang::DataflowValues< ValueTypes, _AnalysisDirTag >::~DataflowValues().

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

include/clang/Analysis/FlowSensitive/DataflowValues.h

Public Types

Public Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

◆ AnalysisDataTy

◆ AnalysisDirTag

◆ BlockDataMapTy

◆ EdgeDataMapTy

◆ StmtDataMapTy

◆ ValTy

Constructor & Destructor Documentation

◆ DataflowValues()

◆ ~DataflowValues()

Member Function Documentation

◆ getAnalysisData() [1/2]

◆ getAnalysisData() [2/2]

◆ getBlockData() [1/2]

◆ getBlockData() [2/2]

◆ getBlockDataMap() [1/2]

◆ getBlockDataMap() [2/2]

◆ getEdgeData() [1/2]

◆ getEdgeData() [2/2]

◆ getEdgeDataMap() [1/2]

◆ getEdgeDataMap() [2/2]

◆ getStmtData() [1/2]

◆ getStmtData() [2/2]

◆ getStmtDataMap() [1/2]

◆ getStmtDataMap() [2/2]

◆ InitializeValues()

◆ isBackwardAnalysis()

◆ isForwardAnalysis()

Member Data Documentation

◆ AnalysisData

◆ BlockDataMap

◆ EdgeDataMap

◆ StmtDataMap