cprover
global_may_alias_analysist Class Reference

This is a may analysis (i.e. More...

#include <global_may_alias.h>

+ Inheritance diagram for global_may_alias_analysist:
+ Collaboration diagram for global_may_alias_analysist:

Protected Member Functions

virtual void initialize (const goto_functionst &)
 Initialize all the abstract states for a whole program. More...
 
- Protected Member Functions inherited from ait< global_may_alias_domaint >
virtual statetget_state (locationt l) override
 Get the state for the given location, creating it in a default way if it doesn't exist. More...
 
const statetfind_state (locationt l) const override
 Get the state for the given location if it already exists; throw an exception if it doesn't. More...
 
bool merge (const statet &src, locationt from, locationt to) override
 
std::unique_ptr< statetmake_temporary_state (const statet &s) override
 Make a copy of a state. More...
 
void fixedpoint (const goto_functionst &goto_functions, const namespacet &ns) override
 
- Protected Member Functions inherited from ai_baset
virtual void initialize (const goto_programt &goto_program)
 Initialize all the abstract states for a single function. More...
 
virtual void initialize (const goto_functionst::goto_functiont &goto_function)
 Initialize all the abstract states for a single function. More...
 
virtual void finalize ()
 Override this to add a cleanup or post-processing step after fixedpoint has run. More...
 
void entry_state (const goto_programt &goto_program)
 Set the abstract state of the entry location of a single function to the entry state required by the analysis. More...
 
void entry_state (const goto_functionst &goto_functions)
 Set the abstract state of the entry location of a whole program to the entry state required by the analysis. More...
 
virtual void output (const namespacet &ns, const goto_programt &goto_program, const irep_idt &identifier, std::ostream &out) const
 Output the abstract states for a single function. More...
 
virtual jsont output_json (const namespacet &ns, const goto_programt &goto_program, const irep_idt &identifier) const
 Output the abstract states for a single function as JSON. More...
 
virtual xmlt output_xml (const namespacet &ns, const goto_programt &goto_program, const irep_idt &identifier) const
 Output the abstract states for a single function as XML. More...
 
locationt get_next (working_sett &working_set)
 Get the next location from the work queue. More...
 
void put_in_working_set (working_sett &working_set, locationt l)
 
bool fixedpoint (const irep_idt &function_identifier, const goto_programt &goto_program, const goto_functionst &goto_functions, const namespacet &ns)
 Run the fixedpoint algorithm until it reaches a fixed point. More...
 
void sequential_fixedpoint (const goto_functionst &goto_functions, const namespacet &ns)
 
void concurrent_fixedpoint (const goto_functionst &goto_functions, const namespacet &ns)
 
bool visit (const irep_idt &function_identifier, locationt l, working_sett &working_set, const goto_programt &goto_program, const goto_functionst &goto_functions, const namespacet &ns)
 Perform one step of abstract interpretation from location l Depending on the instruction type it may compute a number of "edges" or applications of the abstract transformer. More...
 
bool do_function_call_rec (const irep_idt &calling_function_identifier, locationt l_call, locationt l_return, const exprt &function, const exprt::operandst &arguments, const goto_functionst &goto_functions, const namespacet &ns)
 
bool do_function_call (const irep_idt &calling_function_identifier, locationt l_call, locationt l_return, const goto_functionst &goto_functions, const goto_functionst::function_mapt::const_iterator f_it, const exprt::operandst &arguments, const namespacet &ns)
 

Additional Inherited Members

- Public Types inherited from ait< global_may_alias_domaint >
typedef goto_programt::const_targett locationt
 
- Public Types inherited from ai_baset
typedef ai_domain_baset statet
 
typedef goto_programt::const_targett locationt
 
- Public Member Functions inherited from ait< global_may_alias_domaint >
 ait ()
 
global_may_alias_domaintoperator[] (locationt l)
 
const global_may_alias_domaintoperator[] (locationt l) const
 
std::unique_ptr< statetabstract_state_before (locationt t) const override
 Get a copy of the abstract state before the given instruction, without needing to know what kind of domain or history is used. More...
 
void clear () override
 Reset the abstract state. More...
 
- Public Member Functions inherited from ai_baset
 ai_baset ()
 
virtual ~ai_baset ()
 
void operator() (const irep_idt &function_identifier, const goto_programt &goto_program, const namespacet &ns)
 Run abstract interpretation on a single function. More...
 
void operator() (const goto_functionst &goto_functions, const namespacet &ns)
 Run abstract interpretation on a whole program. More...
 
void operator() (const goto_modelt &goto_model)
 Run abstract interpretation on a whole program. More...
 
void operator() (const irep_idt &function_identifier, const goto_functionst::goto_functiont &goto_function, const namespacet &ns)
 Run abstract interpretation on a single function. More...
 
virtual std::unique_ptr< statetabstract_state_after (locationt l) const
 Get a copy of the abstract state after the given instruction, without needing to know what kind of domain or history is used. More...
 
virtual void output (const namespacet &ns, const goto_functionst &goto_functions, std::ostream &out) const
 Output the abstract states for a whole program. More...
 
void output (const goto_modelt &goto_model, std::ostream &out) const
 Output the abstract states for a whole program. More...
 
void output (const namespacet &ns, const goto_programt &goto_program, std::ostream &out) const
 Output the abstract states for a function. More...
 
void output (const namespacet &ns, const goto_functionst::goto_functiont &goto_function, std::ostream &out) const
 Output the abstract states for a function. More...
 
virtual jsont output_json (const namespacet &ns, const goto_functionst &goto_functions) const
 Output the abstract states for the whole program as JSON. More...
 
jsont output_json (const goto_modelt &goto_model) const
 Output the abstract states for a whole program as JSON. More...
 
jsont output_json (const namespacet &ns, const goto_programt &goto_program) const
 Output the abstract states for a single function as JSON. More...
 
jsont output_json (const namespacet &ns, const goto_functionst::goto_functiont &goto_function) const
 Output the abstract states for a single function as JSON. More...
 
virtual xmlt output_xml (const namespacet &ns, const goto_functionst &goto_functions) const
 Output the abstract states for the whole program as XML. More...
 
xmlt output_xml (const goto_modelt &goto_model) const
 Output the abstract states for the whole program as XML. More...
 
xmlt output_xml (const namespacet &ns, const goto_programt &goto_program) const
 Output the abstract states for a single function as XML. More...
 
xmlt output_xml (const namespacet &ns, const goto_functionst::goto_functiont &goto_function) const
 Output the abstract states for a single function as XML. More...
 
- Protected Types inherited from ait< global_may_alias_domaint >
typedef std::unordered_map< locationt, global_may_alias_domaint, const_target_hash, pointee_address_equaltstate_mapt
 
- Protected Types inherited from ai_baset
typedef std::map< unsigned, locationtworking_sett
 The work queue, sorted by location number. More...
 
- Protected Attributes inherited from ait< global_may_alias_domaint >
state_mapt state_map
 

Detailed Description

This is a may analysis (i.e.

aliasing that may occur during execution, but is not a given), for global variables. Implemented as a Steensgaard-style analysis, with the Union-find algorithm, for efficiency reasons.

Definition at line 106 of file global_may_alias.h.

Member Function Documentation

◆ initialize()

virtual void global_may_alias_analysist::initialize ( const goto_functionst goto_functions)
inlineprotectedvirtual

Initialize all the abstract states for a whole program.

Override this to do custom per-analysis initialization.

Reimplemented from ai_baset.

Definition at line 109 of file global_may_alias.h.


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