Description

Definition at line 14 of file reachingDef.h.

Public Types
enum	Type { PHI_FUNCTION, ORIGINAL_DEF, EXPANDED_DEF }

typedef boost::shared_ptr< ReachingDef >	ReachingDefPtr

typedef FilteredCFGEdge< ssa_private::DataflowCfgFilter >	FilteredCfgEdge

Public Member Functions
	ReachingDef (SgNode *defNode, Type type)
	Creates a new reaching def.

bool	isPhiFunction () const
	Returns true if this is a phi function.

const std::map< ReachingDefPtr, std::set< FilteredCfgEdge > > &	getJoinedDefs () const
	If this is a join node (phi function), get the definitions merged. More...

SgNode *	getDefinitionNode () const
	If this is not a phi function, returns the actual reaching definition. More...

std::set< SgNode * >	getActualDefinitions () const
	Returns the actual reaching definitions at the current node, expanding all phi functions.

int	getRenamingNumber () const
	Get the renaming (SSA index) associated with this definition. More...

bool	isOriginalDef () const
	Returns true if this is an original definition (i.e. More...

bool	operator== (const ReachingDef &other) const

void	setDefinitionNode (SgNode *defNode)
	Set the definition node in the AST (only valid if this is not a phi function)

void	addJoinedDef (ReachingDefPtr newDef, FilteredCfgEdge edge)
	Add a new join definition (only valid for phi functions).

void	setRenamingNumber (int n)
	Set the renaming number (SSA index) of this def.

Member Enumeration Documentation

Enumerator

PHI_FUNCTION

'Fake' definition that joins two different reaching definitions.

ORIGINAL_DEF

Definition for the actual variable in question, not a parent or child.

EXPANDED_DEF

Definition for the parent or child of this variable.

(E.g. if x.b is the variable in question, this def could be for x or x.b.a).

Definition at line 18 of file reachingDef.h.

const std::map<ReachingDefPtr, std::set<FilteredCfgEdge> >& ReachingDef::getJoinedDefs ( ) const

If this is a join node (phi function), get the definitions merged.

Each definition is paired with the CFG node along which it flows.

SgNode* ReachingDef::getDefinitionNode ( ) const

If this is not a phi function, returns the actual reaching definition.

If this is a phi function, returns the node where the phi function appears.

int ReachingDef::getRenamingNumber ( ) const

Get the renaming (SSA index) associated with this definition.

0 is the first value, and numbers increase monotonically with program flow.

bool ReachingDef::isOriginalDef ( ) const

inline

Returns true if this is an original definition (i.e.

if p.x is defined, p.x is an original defintion and p is an expanded definition)

Definition at line 79 of file reachingDef.h.

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