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45 out << itr->first <<
":" << itr->second;
52 for(rw_range_sett::objectst::iterator it=
r_range_set.begin();
57 for(rw_range_sett::objectst::iterator it=
w_range_set.begin();
66 for(
const auto &read_object_entry :
get_r_set())
68 out <<
" " << read_object_entry.first;
69 read_object_entry.second->output(
ns, out);
76 for(
const auto &written_object_entry :
get_w_set())
78 out <<
" " << written_object_entry.first;
79 written_object_entry.second->output(
ns, out);
108 (range_start==-1 || expr.
id()==ID_complex_real) ? 0 : sub_size;
152 auto index = numeric_cast<mp_integer>(simp_offset);
153 if(range_start == -1 || !index.has_value())
163 be.
id()==ID_byte_extract_little_endian,
166 range_start + map.map_bit(numeric_cast_v<std::size_t>(*index));
183 const auto dist = numeric_cast<mp_integer>(simp_distance);
184 if(range_start == -1 || size == -1 || src_size == -1 || !dist.has_value())
197 if(shift.
id()==ID_ashr || shift.
id()==ID_lshr)
200 sh_range_start+=dist_r;
202 range_spect sh_size=std::min(size, src_size-sh_range_start);
204 if(sh_range_start>=0 && sh_range_start<src_size)
209 assert(src_size-dist_r>=0);
210 range_spect sh_size=std::min(size, src_size-dist_r);
225 if(type.
id() == ID_union || type.
id() == ID_union_tag || range_start == -1)
238 if(offset_bits.has_value())
241 offset += range_start;
255 if(expr.
array().
id() == ID_null_object)
261 if(type.
id()==ID_vector)
267 sub_size = subtype_bits.has_value() ?
to_range_spect(*subtype_bits) : -1;
269 else if(type.
id()==ID_array)
275 sub_size = subtype_bits.has_value() ?
to_range_spect(*subtype_bits) : -1;
282 const auto index = numeric_cast<mp_integer>(simp_index);
283 if(!index.has_value())
286 if(range_start == -1 || sub_size == -1 || !index.has_value())
308 if(subtype_bits.has_value())
319 range_spect full_r_s=range_start==-1 ? 0 : range_start;
321 size==-1 ? sub_size*expr.
operands().size() : full_r_s+size;
325 if(full_r_s<=offset+sub_size && full_r_e>offset)
327 range_spect cur_r_s=full_r_s<=offset ? 0 : full_r_s-offset;
329 full_r_e>offset+sub_size ? sub_size : full_r_e-offset;
353 range_spect full_r_s=range_start==-1 ? 0 : range_start;
354 range_spect full_r_e=size==-1 || full_size==-1 ? -1 : full_r_s+size;
366 else if(sub_size==-1)
368 if(full_r_e==-1 || full_r_e>offset)
370 range_spect cur_r_s=full_r_s<=offset ? 0 : full_r_s-offset;
377 else if(full_r_e==-1)
379 if(full_r_s<=offset+sub_size)
381 range_spect cur_r_s=full_r_s<=offset ? 0 : full_r_s-offset;
388 else if(full_r_s<=offset+sub_size && full_r_e>offset)
390 range_spect cur_r_s=full_r_s<=offset ? 0 : full_r_s-offset;
392 full_r_e>offset+sub_size ? sub_size : full_r_e-offset;
415 else if(new_size!=-1)
417 if(new_size<=range_start)
420 new_size-=range_start;
421 new_size=std::min(size, new_size);
430 object.
id() == ID_string_constant ||
object.
id() == ID_label ||
431 object.
id() == ID_array ||
object.
id() == ID_null_object ||
432 object.
id() == ID_symbol)
437 else if(
object.
id()==ID_dereference)
441 else if(
object.
id()==ID_index)
448 else if(
object.
id()==ID_member)
454 else if(
object.
id()==ID_if)
462 else if(
object.
id()==ID_byte_extract_little_endian ||
463 object.
id()==ID_byte_extract_big_endian)
469 else if(
object.
id()==ID_typecast)
476 throw "rw_range_sett: address_of '" +
object.id_string() +
"' not handled";
485 objectst::iterator entry=
488 std::pair<
const irep_idt &, std::unique_ptr<range_domain_baset>>(
489 identifier,
nullptr))
492 if(entry->second==
nullptr)
493 entry->second=util_make_unique<range_domaint>();
496 {range_start, range_end});
505 if(expr.
id() == ID_complex_real)
508 else if(expr.
id() == ID_complex_imag)
511 else if(expr.
id()==ID_typecast)
517 else if(expr.
id()==ID_if)
519 else if(expr.
id()==ID_dereference)
525 else if(expr.
id()==ID_byte_extract_little_endian ||
526 expr.
id()==ID_byte_extract_big_endian)
532 else if(expr.
id()==ID_shl ||
533 expr.
id()==ID_ashr ||
536 else if(expr.
id()==ID_member)
538 else if(expr.
id()==ID_index)
540 else if(expr.
id()==ID_array)
542 else if(expr.
id()==ID_struct)
544 else if(expr.
id()==ID_symbol)
555 (full_size>0 && range_start>=full_size))
561 else if(range_start>=0)
563 range_spect range_end=size==-1 ? -1 : range_start+size;
564 if(size!=-1 && full_size!=-1)
565 range_end=std::min(range_end, full_size);
567 add(mode, identifier, range_start, range_end);
570 add(mode, identifier, 0, -1);
582 else if(expr.
id() == ID_null_object ||
583 expr.
id() == ID_string_constant)
593 throw "rw_range_sett: assignment to '" + expr.
id_string() +
"' not handled";
608 if(type.
id()==ID_array)
635 if(type_bits.has_value())
639 if(range_start == -1 || new_size <= range_start)
643 new_size -= range_start;
644 new_size = std::min(size, new_size);
652 if(
object.is_not_nil() && !
has_subexpr(
object, ID_dereference))
657 const namespacet &ns, std::ostream &out)
const
666 out << itr->first <<
":" << itr->second.first;
696 guard = std::move(copy);
706 objectst::iterator entry=
709 std::pair<
const irep_idt &, std::unique_ptr<range_domain_baset>>(
710 identifier,
nullptr))
713 if(entry->second==
nullptr)
714 entry->second=util_make_unique<guarded_range_domaint>();
736 const exprt &function_expr,
747 for(
const auto &argument : arguments)
773 target->get_condition());
783 if(target->get_other().get_statement() == ID_printf)
785 for(
const auto &op : target->get_other().operands())
804 goto_rw(
function, target, target->get_assign(), rw_set);
813 rw_set.
get_objects_rec(
function, target, target->decl_symbol().type());
823 target->call_function(),
824 target->call_arguments(),
836 goto_rw(
function, i_it, rw_set);
843 goto_functionst::function_mapt::const_iterator f_it=
850 goto_rw(f_it->first, body, rw_set);
#define UNREACHABLE
This should be used to mark dead code.
dstringt has one field, an unsigned integer no which is an index into a static table of strings.
const objectst & get_r_set() const
virtual void get_objects_if(get_modet mode, const if_exprt &if_expr, const range_spect &range_start, const range_spect &size)
const typet & subtype() const
virtual void get_objects_shift(get_modet mode, const shift_exprt &shift, const range_spect &range_start, const range_spect &size)
bool has_subexpr(const exprt &expr, const std::function< bool(const exprt &)> &pred)
returns true if the expression has a subexpression that satisfies pred
sub_typet::const_iterator const_iterator
virtual void get_objects_address_of(const exprt &object)
virtual void get_objects_array(get_modet mode, const array_exprt &expr, const range_spect &range_start, const range_spect &size)
const array_exprt & to_array_expr(const exprt &expr)
Cast an exprt to an array_exprt.
const struct_typet & to_struct_type(const typet &type)
Cast a typet to a struct_typet.
virtual void get_objects_byte_extract(get_modet mode, const byte_extract_exprt &be, const range_spect &range_start, const range_spect &size)
const dereference_exprt & to_dereference_expr(const exprt &expr)
Cast an exprt to a dereference_exprt.
#define CHECK_RETURN(CONDITION)
optionalt< mp_integer > member_offset_bits(const struct_typet &type, const irep_idt &member, const namespacet &ns)
The type of an expression, extends irept.
virtual void get_objects_dereference(get_modet mode, const dereference_exprt &deref, const range_spect &range_start, const range_spect &size)
const byte_extract_exprt & to_byte_extract_expr(const exprt &expr)
const index_exprt & to_index_expr(const exprt &expr)
Cast an exprt to an index_exprt.
const if_exprt & to_if_expr(const exprt &expr)
Cast an exprt to an if_exprt.
Operator to dereference a pointer.
virtual void get_objects_typecast(get_modet mode, const typecast_exprt &tc, const range_spect &range_start, const range_spect &size)
The trinary if-then-else operator.
Real part of the expression describing a complex number.
static void goto_rw(const irep_idt &function, goto_programt::const_targett target, const code_assignt &assign, rw_range_sett &rw_set)
Base class for all expressions.
bool is_true() const
Return whether the expression is a constant representing true.
virtual void get_objects_struct(get_modet mode, const struct_exprt &expr, const range_spect &range_start, const range_spect &size)
function_mapt function_map
void output(const namespacet &ns, std::ostream &out) const override
Expression to hold a symbol (variable)
virtual void get_objects_rec(const irep_idt &, goto_programt::const_targett, get_modet mode, const exprt &expr)
virtual void get_objects_member(get_modet mode, const member_exprt &expr, const range_spect &range_start, const range_spect &size)
range_spect to_range_spect(const mp_integer &size)
bool is_false() const
Return whether the expression is a constant representing false.
const complex_real_exprt & to_complex_real_expr(const exprt &expr)
Cast an exprt to a complex_real_exprt.
Struct constructor from list of elements.
virtual void get_objects_rec(const irep_idt &, goto_programt::const_targett, get_modet mode, const exprt &expr)
A namespacet is essentially one or two symbol tables bound together, to allow for symbol lookups in t...
typet & type()
Return the type of the expression.
const array_typet & type() const
Expression classes for byte-level operators.
void get_objects_dereference(get_modet mode, const dereference_exprt &deref, const range_spect &range_start, const range_spect &size) override
virtual void get_objects_rec(const irep_idt &, goto_programt::const_targett, get_modet mode, const exprt &expr)
#define forall_operands(it, expr)
const exprt & struct_op() const
void add(const exprt &expr)
const irep_idt & get_identifier() const
optionalt< mp_integer > pointer_offset_bits(const typet &type, const namespacet &ns)
void add(get_modet mode, const irep_idt &identifier, const range_spect &range_start, const range_spect &range_end) override
API to expression classes for Pointers.
virtual void add(get_modet mode, const irep_idt &identifier, const range_spect &range_start, const range_spect &range_end)
const std::string & id_string() const
virtual void get_objects_complex_imag(get_modet mode, const complex_imag_exprt &expr, const range_spect &range_start, const range_spect &size)
exprt simplify_expr(exprt src, const namespacet &ns)
virtual void get_objects_index(get_modet mode, const index_exprt &expr, const range_spect &range_start, const range_spect &size)
virtual ~range_domain_baset()
const symbol_exprt & to_symbol_expr(const exprt &expr)
Cast an exprt to a symbol_exprt.
goto_programt::const_targett target
const irep_idt & id() const
std::vector< exprt > operandst
const complex_imag_exprt & to_complex_imag_expr(const exprt &expr)
Cast an exprt to a complex_imag_exprt.
void output(std::ostream &out) const
const shift_exprt & to_shift_expr(const exprt &expr)
Cast an exprt to a shift_exprt.
Extract member of struct or union.
Deprecated expression utility functions.
A collection of goto functions.
A base class for shift and rotate operators.
Structure type, corresponds to C style structs.
const typet & follow(const typet &) const
Resolve type symbol to the type it points to.
const typecast_exprt & to_typecast_expr(const exprt &expr)
Cast an exprt to a typecast_exprt.
Imaginary part of the expression describing a complex number.
const array_typet & to_array_type(const typet &type)
Cast a typet to an array_typet.
Maps a big-endian offset to a little-endian offset.
Goto Programs with Functions.
A generic container class for the GOTO intermediate representation of one function.
const vector_typet & to_vector_type(const typet &type)
Cast a typet to a vector_typet.
virtual void get_objects_complex_real(get_modet mode, const complex_real_exprt &expr, const range_spect &range_start, const range_spect &size)
const member_exprt & to_member_expr(const exprt &expr)
Cast an exprt to a member_exprt.
instructionst::const_iterator const_targett
irep_idt get_component_name() const
const address_of_exprt & to_address_of_expr(const exprt &expr)
Cast an exprt to an address_of_exprt.
virtual void output(const namespacet &ns, std::ostream &out) const override
void dereference(const irep_idt &function_id, goto_programt::const_targett target, exprt &expr, const namespacet &ns, value_setst &value_sets)
Remove dereferences in expr using value_sets to determine to what objects the pointers may be pointin...
Operator to return the address of an object.
Semantic type conversion.
A codet representing an assignment in the program.
sub_typet::const_iterator const_iterator
void get_objects_if(get_modet mode, const if_exprt &if_expr, const range_spect &range_start, const range_spect &size) override
Array constructor from list of elements.
std::string from_expr(const namespacet &ns, const irep_idt &identifier, const exprt &expr)
const objectst & get_w_set() const
#define forall_goto_program_instructions(it, program)
API to expression classes for bitvectors.
const struct_exprt & to_struct_expr(const exprt &expr)
Cast an exprt to a struct_exprt.