cprover
value_set_analysis_fivrns.h
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1 /*******************************************************************\
2 
3 Module: Value Set Analysis (Flow Insensitive, Validity Regions)
4 
5 Author: Daniel Kroening, kroening@kroening.com,
6  CM Wintersteiger
7 
8 \*******************************************************************/
9 
12 
13 #ifndef CPROVER_POINTER_ANALYSIS_VALUE_SET_ANALYSIS_FIVRNS_H
14 #define CPROVER_POINTER_ANALYSIS_VALUE_SET_ANALYSIS_FIVRNS_H
15 
17 
19 #include "value_sets.h"
20 
22  public value_setst,
23  public flow_insensitive_analysist<value_set_domain_fivrnst>
24 {
25 public:
27 
28  // constructor
30  const namespacet &_ns,
31  track_optionst _track_options=TRACK_ALL_POINTERS):
33  track_options(_track_options)
34  {
35  }
36 
38 
39  virtual void initialize(const goto_programt &goto_program);
40  virtual void initialize(const goto_functionst &goto_functions);
41 
42  using baset::output;
43 
44  virtual void output(locationt l, std::ostream &out)
45  {
46  state.value_set.set_from(l->function, l->location_number);
47  state.value_set.set_to(l->function, l->location_number);
48  state.output(ns, out);
49  }
50 
51  void output(const goto_programt &goto_program, std::ostream &out)
52  {
53  forall_goto_program_instructions(it, goto_program)
54  {
55  out << "**** " << it->source_location << '\n';
56  output(it, out);
57  out << '\n';
58  goto_program.output_instruction(ns, "", out, *it);
59  out << '\n';
60  }
61  }
62 
63 protected:
65 
66  bool check_type(const typet &type);
67  void get_globals(std::list<value_set_fivrnst::entryt> &dest);
68  void add_vars(const goto_functionst &goto_functions);
69  void add_vars(const goto_programt &goto_programa);
70 
71  void get_entries(
72  const symbolt &symbol,
73  std::list<value_set_fivrnst::entryt> &dest);
74 
75  void get_entries_rec(
76  const irep_idt &identifier,
77  const std::string &suffix,
78  const typet &type,
79  std::list<value_set_fivrnst::entryt> &dest);
80 
81 public:
82  // interface value_sets
83  virtual void get_values(
84  locationt l,
85  const exprt &expr,
86  std::list<exprt> &dest)
87  {
89  state.value_set.function_numbering.number(l->function);
91  state.value_set.function_numbering.number(l->function);
92  state.value_set.from_target_index = l->location_number;
93  state.value_set.to_target_index = l->location_number;
94  state.value_set.get_value_set(expr, dest, ns);
95  }
96 };
97 
98 #endif // CPROVER_POINTER_ANALYSIS_VALUE_SET_ANALYSIS_FIVRNS_H
value_set_analysis_fivrnst::output
void output(const goto_programt &goto_program, std::ostream &out)
Definition: value_set_analysis_fivrns.h:51
dstringt
dstringt has one field, an unsigned integer no which is an index into a static table of strings.
Definition: dstring.h:35
value_set_domain_fivrnst::value_set
value_set_fivrnst value_set
Definition: value_set_domain_fivrns.h:24
value_set_analysis_fivrnst::add_vars
void add_vars(const goto_functionst &goto_functions)
Definition: value_set_analysis_fivrns.cpp:108
typet
The type of an expression, extends irept.
Definition: type.h:27
value_set_analysis_fivrnst::get_globals
void get_globals(std::list< value_set_fivrnst::entryt > &dest)
Definition: value_set_analysis_fivrns.cpp:135
value_set_fivrnst::set_to
void set_to(const irep_idt &function, unsigned inx)
Definition: value_set_fivrns.h:46
value_set_fivrnst::to_target_index
unsigned to_target_index
Definition: value_set_fivrns.h:36
value_set_fivrnst::from_target_index
unsigned from_target_index
Definition: value_set_fivrns.h:36
exprt
Base class for all expressions.
Definition: expr.h:54
value_set_analysis_fivrnst::get_entries
void get_entries(const symbolt &symbol, std::list< value_set_fivrnst::entryt > &dest)
Definition: value_set_analysis_fivrns.cpp:74
value_set_analysis_fivrnst::get_values
virtual void get_values(locationt l, const exprt &expr, std::list< exprt > &dest)
Definition: value_set_analysis_fivrns.h:83
value_set_analysis_fivrnst
Definition: value_set_analysis_fivrns.h:21
value_set_analysis_fivrnst::track_optionst
track_optionst
Definition: value_set_analysis_fivrns.h:26
value_set_fivrnst::get_value_set
void get_value_set(const exprt &expr, std::list< exprt > &expr_set, const namespacet &ns) const
Definition: value_set_fivrns.cpp:266
value_set_analysis_fivrnst::track_options
track_optionst track_options
Definition: value_set_analysis_fivrns.h:64
value_sets.h
namespacet
A namespacet is essentially one or two symbol tables bound together, to allow for symbol lookups in t...
Definition: namespace.h:93
value_set_domain_fivrnst::output
virtual void output(const namespacet &ns, std::ostream &out) const
Definition: value_set_domain_fivrns.h:28
goto_programt::output_instruction
std::ostream & output_instruction(const namespacet &ns, const irep_idt &identifier, std::ostream &out, const instructionst::value_type &instruction) const
Output a single instruction.
Definition: goto_program.cpp:37
value_set_fivrnst::to_function
unsigned to_function
Definition: value_set_fivrns.h:35
flow_insensitive_analysis.h
value_set_analysis_fivrnst::baset
flow_insensitive_analysist< value_set_domain_fivrnst > baset
Definition: value_set_analysis_fivrns.h:37
value_set_fivrnst::function_numbering
static hash_numbering< irep_idt, irep_id_hash > function_numbering
Definition: value_set_fivrns.h:38
value_set_fivrnst::set_from
void set_from(const irep_idt &function, unsigned inx)
Definition: value_set_fivrns.h:40
flow_insensitive_analysis_baset::output
virtual void output(const goto_functionst &goto_functions, std::ostream &out)
Definition: flow_insensitive_analysis.cpp:64
flow_insensitive_analysis_baset::ns
const namespacet & ns
Definition: flow_insensitive_analysis.h:156
flow_insensitive_analysist< value_set_domain_fivrnst >::state
value_set_domain_fivrnst state
Definition: flow_insensitive_analysis.h:257
value_set_fivrnst::from_function
unsigned from_function
Definition: value_set_fivrns.h:35
goto_functionst
A collection of goto functions.
Definition: goto_functions.h:22
flow_insensitive_analysis_baset::locationt
goto_programt::const_targett locationt
Definition: flow_insensitive_analysis.h:92
value_setst
Definition: value_sets.h:21
symbolt
Symbol table entry.
Definition: symbol.h:27
value_set_analysis_fivrnst::initialize
virtual void initialize(const goto_programt &goto_program)
Definition: value_set_analysis_fivrns.cpp:22
goto_programt
A generic container class for the GOTO intermediate representation of one function.
Definition: goto_program.h:72
value_set_analysis_fivrnst::output
virtual void output(locationt l, std::ostream &out)
Definition: value_set_analysis_fivrns.h:44
value_set_analysis_fivrnst::get_entries_rec
void get_entries_rec(const irep_idt &identifier, const std::string &suffix, const typet &type, std::list< value_set_fivrnst::entryt > &dest)
Definition: value_set_analysis_fivrns.cpp:81
value_set_analysis_fivrnst::check_type
bool check_type(const typet &type)
Definition: value_set_analysis_fivrns.cpp:148
value_set_analysis_fivrnst::TRACK_ALL_POINTERS
@ TRACK_ALL_POINTERS
Definition: value_set_analysis_fivrns.h:26
value_set_analysis_fivrnst::TRACK_FUNCTION_POINTERS
@ TRACK_FUNCTION_POINTERS
Definition: value_set_analysis_fivrns.h:26
value_set_analysis_fivrnst::value_set_analysis_fivrnst
value_set_analysis_fivrnst(const namespacet &_ns, track_optionst _track_options=TRACK_ALL_POINTERS)
Definition: value_set_analysis_fivrns.h:29
value_set_domain_fivrnst
Definition: value_set_domain_fivrns.h:20
forall_goto_program_instructions
#define forall_goto_program_instructions(it, program)
Definition: goto_program.h:804
flow_insensitive_analysist
Definition: flow_insensitive_analysis.h:236
value_set_domain_fivrns.h