CBMC
Classes | Public Member Functions | Static Public Member Functions | Public Attributes | Protected Attributes | List of all members
simplify_exprt Class Reference

#include <simplify_expr_class.h>

+ Collaboration diagram for simplify_exprt:

Classes

struct  resultt
 

Public Member Functions

 simplify_exprt (const namespacet &_ns)
 
virtual ~simplify_exprt ()
 
resultt simplify_typecast (const typecast_exprt &)
 
resultt simplify_typecast_preorder (const typecast_exprt &)
 
resultt simplify_extractbit (const extractbit_exprt &)
 
resultt simplify_extractbits (const extractbits_exprt &)
 Simplifies extracting of bits from a constant. More...
 
resultt simplify_concatenation (const concatenation_exprt &)
 
resultt simplify_mult (const mult_exprt &)
 
resultt simplify_div (const div_exprt &)
 
resultt simplify_mod (const mod_exprt &)
 
resultt simplify_plus (const plus_exprt &)
 
resultt simplify_minus (const minus_exprt &)
 
resultt simplify_floatbv_op (const ieee_float_op_exprt &)
 
resultt simplify_floatbv_typecast (const floatbv_typecast_exprt &)
 
resultt simplify_shifts (const shift_exprt &)
 
resultt simplify_power (const binary_exprt &)
 
resultt simplify_bitwise (const multi_ary_exprt &)
 
resultt simplify_if_preorder (const if_exprt &expr)
 
resultt simplify_if (const if_exprt &)
 
resultt simplify_bitnot (const bitnot_exprt &)
 
resultt simplify_not (const not_exprt &)
 
resultt simplify_boolean (const exprt &)
 
resultt simplify_inequality (const binary_relation_exprt &)
 simplifies inequalities !=, <=, <, >=, >, and also == More...
 
resultt simplify_ieee_float_relation (const binary_relation_exprt &)
 
resultt simplify_lambda (const lambda_exprt &)
 
resultt simplify_with (const with_exprt &)
 
resultt simplify_update (const update_exprt &)
 
resultt simplify_index (const index_exprt &)
 
resultt simplify_index_preorder (const index_exprt &)
 
resultt simplify_member (const member_exprt &)
 
resultt simplify_member_preorder (const member_exprt &)
 
resultt simplify_byte_update (const byte_update_exprt &)
 
resultt simplify_byte_extract (const byte_extract_exprt &)
 
resultt simplify_byte_extract_preorder (const byte_extract_exprt &)
 
resultt simplify_pointer_object (const pointer_object_exprt &)
 
resultt simplify_unary_pointer_predicate_preorder (const unary_exprt &)
 
resultt simplify_object_size (const object_size_exprt &)
 
resultt simplify_is_dynamic_object (const unary_exprt &)
 
resultt simplify_is_invalid_pointer (const unary_exprt &)
 
resultt simplify_object (const exprt &)
 
resultt simplify_unary_minus (const unary_minus_exprt &)
 
resultt simplify_unary_plus (const unary_plus_exprt &)
 
resultt simplify_dereference (const dereference_exprt &)
 
resultt simplify_dereference_preorder (const dereference_exprt &)
 
resultt simplify_address_of (const address_of_exprt &)
 
resultt simplify_pointer_offset (const pointer_offset_exprt &)
 
resultt simplify_bswap (const bswap_exprt &)
 
resultt simplify_isinf (const unary_exprt &)
 
resultt simplify_isnan (const unary_exprt &)
 
resultt simplify_isnormal (const unary_exprt &)
 
resultt simplify_abs (const abs_exprt &)
 
resultt simplify_sign (const sign_exprt &)
 
resultt simplify_popcount (const popcount_exprt &)
 
resultt simplify_complex (const unary_exprt &)
 
resultt simplify_overflow_binary (const binary_overflow_exprt &)
 Try to simplify overflow-+, overflow-*, overflow–, overflow-shl. More...
 
resultt simplify_overflow_unary (const unary_overflow_exprt &)
 Try to simplify overflow-unary-. More...
 
resultt simplify_overflow_result (const overflow_result_exprt &)
 Try to simplify overflow_result-+, overflow_result-*, overflow_result–, overflow_result-shl, overflow_result-unary–. More...
 
resultt simplify_function_application (const function_application_exprt &)
 Attempt to simplify mathematical function applications if we have enough information to do so. More...
 
resultt simplify_clz (const count_leading_zeros_exprt &)
 Try to simplify count-leading-zeros to a constant expression. More...
 
resultt simplify_ctz (const count_trailing_zeros_exprt &)
 Try to simplify count-trailing-zeros to a constant expression. More...
 
resultt simplify_bitreverse (const bitreverse_exprt &)
 Try to simplify bit-reversing to a constant expression. More...
 
resultt simplify_ffs (const find_first_set_exprt &)
 Try to simplify find-first-set to a constant expression. More...
 
resultt simplify_prophecy_r_or_w_ok (const prophecy_r_or_w_ok_exprt &)
 Try to simplify prophecy_{r,w,rw}_ok to a constant expression. More...
 
resultt simplify_prophecy_pointer_in_range (const prophecy_pointer_in_range_exprt &)
 Try to simplify prophecy_pointer_in_range to a constant expression. More...
 
bool simplify_if_implies (exprt &expr, const exprt &cond, bool truth, bool &new_truth)
 
bool simplify_if_recursive (exprt &expr, const exprt &cond, bool truth)
 
bool simplify_if_conj (exprt &expr, const exprt &cond)
 
bool simplify_if_disj (exprt &expr, const exprt &cond)
 
bool simplify_if_branch (exprt &trueexpr, exprt &falseexpr, const exprt &cond)
 
bool simplify_if_cond (exprt &expr)
 
resultt simplify_address_of_arg (const exprt &)
 
resultt simplify_inequality_both_constant (const binary_relation_exprt &)
 simplifies inequalities for the case in which both sides of the inequality are constants More...
 
resultt simplify_inequality_no_constant (const binary_relation_exprt &)
 
resultt simplify_inequality_rhs_is_constant (const binary_relation_exprt &)
 
resultt simplify_inequality_address_of (const binary_relation_exprt &)
 
resultt simplify_inequality_pointer_object (const binary_relation_exprt &)
 
resultt simplify_node (const exprt &)
 
resultt simplify_node_preorder (const exprt &)
 
resultt simplify_rec (const exprt &)
 
virtual bool simplify (exprt &expr)
 

Static Public Member Functions

static resultt unchanged (exprt expr)
 
static resultt changed (resultt<> result)
 
static bool is_bitvector_type (const typet &type)
 

Public Attributes

bool do_simplify_if
 

Protected Attributes

const namespacet & ns
 

Detailed Description

Definition at line 80 of file simplify_expr_class.h.

Constructor & Destructor Documentation

◆ simplify_exprt()

simplify_exprt::simplify_exprt ( const namespacet &  _ns)
inlineexplicit

Definition at line 83 of file simplify_expr_class.h.

◆ ~simplify_exprt()

virtual simplify_exprt::~simplify_exprt ( )
inlinevirtual

Definition at line 96 of file simplify_expr_class.h.

Member Function Documentation

◆ changed()

static resultt simplify_exprt::changed ( resultt<>  result)
inlinestatic

Definition at line 142 of file simplify_expr_class.h.

◆ is_bitvector_type()

static bool simplify_exprt::is_bitvector_type ( const typet &  type)
inlinestatic

Definition at line 278 of file simplify_expr_class.h.

◆ simplify()

bool simplify_exprt::simplify ( exprt &  expr)
virtual
Returns
returns true if expression unchanged; returns false if changed

Definition at line 3212 of file simplify_expr.cpp.

◆ simplify_abs()

simplify_exprt::resultt simplify_exprt::simplify_abs ( const abs_exprt &  expr)

Definition at line 65 of file simplify_expr.cpp.

◆ simplify_address_of()

simplify_exprt::resultt simplify_exprt::simplify_address_of ( const address_of_exprt &  expr)

Definition at line 239 of file simplify_expr_pointer.cpp.

◆ simplify_address_of_arg()

simplify_exprt::resultt simplify_exprt::simplify_address_of_arg ( const exprt &  expr)

Definition at line 82 of file simplify_expr_pointer.cpp.

◆ simplify_bitnot()

simplify_exprt::resultt simplify_exprt::simplify_bitnot ( const bitnot_exprt &  expr)

Definition at line 1294 of file simplify_expr_int.cpp.

◆ simplify_bitreverse()

simplify_exprt::resultt simplify_exprt::simplify_bitreverse ( const bitreverse_exprt &  expr)

Try to simplify bit-reversing to a constant expression.

Definition at line 2050 of file simplify_expr_int.cpp.

◆ simplify_bitwise()

simplify_exprt::resultt simplify_exprt::simplify_bitwise ( const multi_ary_exprt &  expr)

Definition at line 663 of file simplify_expr_int.cpp.

◆ simplify_boolean()

simplify_exprt::resultt simplify_exprt::simplify_boolean ( const exprt &  expr)

Definition at line 20 of file simplify_expr_boolean.cpp.

◆ simplify_bswap()

simplify_exprt::resultt simplify_exprt::simplify_bswap ( const bswap_exprt &  expr)

Definition at line 32 of file simplify_expr_int.cpp.

◆ simplify_byte_extract()

simplify_exprt::resultt simplify_exprt::simplify_byte_extract ( const byte_extract_exprt &  expr)

Definition at line 1653 of file simplify_expr.cpp.

◆ simplify_byte_extract_preorder()

simplify_exprt::resultt simplify_exprt::simplify_byte_extract_preorder ( const byte_extract_exprt &  expr)

Definition at line 2036 of file simplify_expr.cpp.

◆ simplify_byte_update()

simplify_exprt::resultt simplify_exprt::simplify_byte_update ( const byte_update_exprt &  expr)

Definition at line 2071 of file simplify_expr.cpp.

◆ simplify_clz()

simplify_exprt::resultt simplify_exprt::simplify_clz ( const count_leading_zeros_exprt &  expr)

Try to simplify count-leading-zeros to a constant expression.

Definition at line 151 of file simplify_expr.cpp.

◆ simplify_complex()

simplify_exprt::resultt simplify_exprt::simplify_complex ( const unary_exprt &  expr)

Definition at line 2396 of file simplify_expr.cpp.

◆ simplify_concatenation()

simplify_exprt::resultt simplify_exprt::simplify_concatenation ( const concatenation_exprt &  expr)

Definition at line 866 of file simplify_expr_int.cpp.

◆ simplify_ctz()

simplify_exprt::resultt simplify_exprt::simplify_ctz ( const count_trailing_zeros_exprt &  expr)

Try to simplify count-trailing-zeros to a constant expression.

Definition at line 177 of file simplify_expr.cpp.

◆ simplify_dereference()

simplify_exprt::resultt simplify_exprt::simplify_dereference ( const dereference_exprt &  expr)

Definition at line 1372 of file simplify_expr.cpp.

◆ simplify_dereference_preorder()

simplify_exprt::resultt simplify_exprt::simplify_dereference_preorder ( const dereference_exprt &  expr)

Definition at line 1413 of file simplify_expr.cpp.

◆ simplify_div()

simplify_exprt::resultt simplify_exprt::simplify_div ( const div_exprt &  expr)

Definition at line 274 of file simplify_expr_int.cpp.

◆ simplify_extractbit()

simplify_exprt::resultt simplify_exprt::simplify_extractbit ( const extractbit_exprt &  expr)

Definition at line 837 of file simplify_expr_int.cpp.

◆ simplify_extractbits()

simplify_exprt::resultt simplify_exprt::simplify_extractbits ( const extractbits_exprt &  expr)

Simplifies extracting of bits from a constant.

Definition at line 1131 of file simplify_expr_int.cpp.

◆ simplify_ffs()

simplify_exprt::resultt simplify_exprt::simplify_ffs ( const find_first_set_exprt &  expr)

Try to simplify find-first-set to a constant expression.

Definition at line 203 of file simplify_expr.cpp.

◆ simplify_floatbv_op()

simplify_exprt::resultt simplify_exprt::simplify_floatbv_op ( const ieee_float_op_exprt &  expr)

Definition at line 273 of file simplify_expr_floatbv.cpp.

◆ simplify_floatbv_typecast()

simplify_exprt::resultt simplify_exprt::simplify_floatbv_typecast ( const floatbv_typecast_exprt &  expr)

Definition at line 139 of file simplify_expr_floatbv.cpp.

◆ simplify_function_application()

simplify_exprt::resultt simplify_exprt::simplify_function_application ( const function_application_exprt &  expr)

Attempt to simplify mathematical function applications if we have enough information to do so.

Currently focused on constant comparisons.

Definition at line 700 of file simplify_expr.cpp.

◆ simplify_ieee_float_relation()

simplify_exprt::resultt simplify_exprt::simplify_ieee_float_relation ( const binary_relation_exprt &  expr)

Definition at line 338 of file simplify_expr_floatbv.cpp.

◆ simplify_if()

simplify_exprt::resultt simplify_exprt::simplify_if ( const if_exprt &  expr)

Definition at line 336 of file simplify_expr_if.cpp.

◆ simplify_if_branch()

bool simplify_exprt::simplify_if_branch ( exprt &  trueexpr,
exprt &  falseexpr,
const exprt &  cond 
)

Definition at line 144 of file simplify_expr_if.cpp.

◆ simplify_if_cond()

bool simplify_exprt::simplify_if_cond ( exprt &  expr)

Definition at line 176 of file simplify_expr_if.cpp.

◆ simplify_if_conj()

bool simplify_exprt::simplify_if_conj ( exprt &  expr,
const exprt &  cond 
)

Definition at line 106 of file simplify_expr_if.cpp.

◆ simplify_if_disj()

bool simplify_exprt::simplify_if_disj ( exprt &  expr,
const exprt &  cond 
)

Definition at line 125 of file simplify_expr_if.cpp.

◆ simplify_if_implies()

bool simplify_exprt::simplify_if_implies ( exprt &  expr,
const exprt &  cond,
bool  truth,
bool &  new_truth 
)

Definition at line 15 of file simplify_expr_if.cpp.

◆ simplify_if_preorder()

simplify_exprt::resultt simplify_exprt::simplify_if_preorder ( const if_exprt &  expr)

Definition at line 241 of file simplify_expr_if.cpp.

◆ simplify_if_recursive()

bool simplify_exprt::simplify_if_recursive ( exprt &  expr,
const exprt &  cond,
bool  truth 
)

Definition at line 74 of file simplify_expr_if.cpp.

◆ simplify_index()

simplify_exprt::resultt simplify_exprt::simplify_index ( const index_exprt &  expr)

Definition at line 20 of file simplify_expr_array.cpp.

◆ simplify_index_preorder()

simplify_exprt::resultt simplify_exprt::simplify_index_preorder ( const index_exprt &  expr)

Definition at line 208 of file simplify_expr_array.cpp.

◆ simplify_inequality()

simplify_exprt::resultt simplify_exprt::simplify_inequality ( const binary_relation_exprt &  expr)

simplifies inequalities !=, <=, <, >=, >, and also ==

Definition at line 1325 of file simplify_expr_int.cpp.

◆ simplify_inequality_address_of()

simplify_exprt::resultt simplify_exprt::simplify_inequality_address_of ( const binary_relation_exprt &  expr)

Definition at line 428 of file simplify_expr_pointer.cpp.

◆ simplify_inequality_both_constant()

simplify_exprt::resultt simplify_exprt::simplify_inequality_both_constant ( const binary_relation_exprt &  expr)

simplifies inequalities for the case in which both sides of the inequality are constants

Definition at line 1421 of file simplify_expr_int.cpp.

◆ simplify_inequality_no_constant()

simplify_exprt::resultt simplify_exprt::simplify_inequality_no_constant ( const binary_relation_exprt &  expr)

Definition at line 1582 of file simplify_expr_int.cpp.

◆ simplify_inequality_pointer_object()

simplify_exprt::resultt simplify_exprt::simplify_inequality_pointer_object ( const binary_relation_exprt &  expr)

Definition at line 499 of file simplify_expr_pointer.cpp.

◆ simplify_inequality_rhs_is_constant()

simplify_exprt::resultt simplify_exprt::simplify_inequality_rhs_is_constant ( const binary_relation_exprt &  expr)
expr: an inequality where the RHS is a constant
and the LHS is not

Definition at line 1706 of file simplify_expr_int.cpp.

◆ simplify_is_dynamic_object()

simplify_exprt::resultt simplify_exprt::simplify_is_dynamic_object ( const unary_exprt &  expr)

Definition at line 576 of file simplify_expr_pointer.cpp.

◆ simplify_is_invalid_pointer()

simplify_exprt::resultt simplify_exprt::simplify_is_invalid_pointer ( const unary_exprt &  expr)

Definition at line 625 of file simplify_expr_pointer.cpp.

◆ simplify_isinf()

simplify_exprt::resultt simplify_exprt::simplify_isinf ( const unary_exprt &  expr)

Definition at line 23 of file simplify_expr_floatbv.cpp.

◆ simplify_isnan()

simplify_exprt::resultt simplify_exprt::simplify_isnan ( const unary_exprt &  expr)

Definition at line 37 of file simplify_expr_floatbv.cpp.

◆ simplify_isnormal()

simplify_exprt::resultt simplify_exprt::simplify_isnormal ( const unary_exprt &  expr)

Definition at line 51 of file simplify_expr_floatbv.cpp.

◆ simplify_lambda()

simplify_exprt::resultt simplify_exprt::simplify_lambda ( const lambda_exprt &  expr)

Definition at line 1437 of file simplify_expr.cpp.

◆ simplify_member()

simplify_exprt::resultt simplify_exprt::simplify_member ( const member_exprt &  expr)

Definition at line 23 of file simplify_expr_struct.cpp.

◆ simplify_member_preorder()

simplify_exprt::resultt simplify_exprt::simplify_member_preorder ( const member_exprt &  expr)

Definition at line 279 of file simplify_expr_struct.cpp.

◆ simplify_minus()

simplify_exprt::resultt simplify_exprt::simplify_minus ( const minus_exprt &  expr)

Definition at line 571 of file simplify_expr_int.cpp.

◆ simplify_mod()

simplify_exprt::resultt simplify_exprt::simplify_mod ( const mod_exprt &  expr)

Definition at line 368 of file simplify_expr_int.cpp.

◆ simplify_mult()

simplify_exprt::resultt simplify_exprt::simplify_mult ( const mult_exprt &  expr)

Definition at line 162 of file simplify_expr_int.cpp.

◆ simplify_node()

simplify_exprt::resultt simplify_exprt::simplify_node ( const exprt &  node)

Definition at line 2863 of file simplify_expr.cpp.

◆ simplify_node_preorder()

simplify_exprt::resultt simplify_exprt::simplify_node_preorder ( const exprt &  expr)

Definition at line 2784 of file simplify_expr.cpp.

◆ simplify_not()

simplify_exprt::resultt simplify_exprt::simplify_not ( const not_exprt &  expr)

Definition at line 324 of file simplify_expr_boolean.cpp.

◆ simplify_object()

simplify_exprt::resultt simplify_exprt::simplify_object ( const exprt &  expr)

Definition at line 1573 of file simplify_expr.cpp.

◆ simplify_object_size()

simplify_exprt::resultt simplify_exprt::simplify_object_size ( const object_size_exprt &  expr)

Definition at line 658 of file simplify_expr_pointer.cpp.

◆ simplify_overflow_binary()

simplify_exprt::resultt simplify_exprt::simplify_overflow_binary ( const binary_overflow_exprt &  expr)

Try to simplify overflow-+, overflow-*, overflow–, overflow-shl.

Simplification will be possible when the operands are constants or the types of the operands have infinite domains.

Definition at line 2417 of file simplify_expr.cpp.

◆ simplify_overflow_result()

simplify_exprt::resultt simplify_exprt::simplify_overflow_result ( const overflow_result_exprt &  expr)

Try to simplify overflow_result-+, overflow_result-*, overflow_result–, overflow_result-shl, overflow_result-unary–.

Simplification will be possible when the operands are constants or the types of the operands have infinite domains.

Definition at line 2537 of file simplify_expr.cpp.

◆ simplify_overflow_unary()

simplify_exprt::resultt simplify_exprt::simplify_overflow_unary ( const unary_overflow_exprt &  expr)

Try to simplify overflow-unary-.

Simplification will be possible when the operand is constants or the type of the operand has an infinite domain.

Definition at line 2489 of file simplify_expr.cpp.

◆ simplify_plus()

simplify_exprt::resultt simplify_exprt::simplify_plus ( const plus_exprt &  expr)

Definition at line 405 of file simplify_expr_int.cpp.

◆ simplify_pointer_object()

simplify_exprt::resultt simplify_exprt::simplify_pointer_object ( const pointer_object_exprt &  expr)

Definition at line 544 of file simplify_expr_pointer.cpp.

◆ simplify_pointer_offset()

simplify_exprt::resultt simplify_exprt::simplify_pointer_offset ( const pointer_offset_exprt &  expr)

Definition at line 277 of file simplify_expr_pointer.cpp.

◆ simplify_popcount()

simplify_exprt::resultt simplify_exprt::simplify_popcount ( const popcount_exprt &  expr)

Definition at line 125 of file simplify_expr.cpp.

◆ simplify_power()

simplify_exprt::resultt simplify_exprt::simplify_power ( const binary_exprt &  expr)

Definition at line 1110 of file simplify_expr_int.cpp.

◆ simplify_prophecy_pointer_in_range()

simplify_exprt::resultt simplify_exprt::simplify_prophecy_pointer_in_range ( const prophecy_pointer_in_range_exprt &  expr)

Try to simplify prophecy_pointer_in_range to a constant expression.

Definition at line 715 of file simplify_expr_pointer.cpp.

◆ simplify_prophecy_r_or_w_ok()

simplify_exprt::resultt simplify_exprt::simplify_prophecy_r_or_w_ok ( const prophecy_r_or_w_ok_exprt &  expr)

Try to simplify prophecy_{r,w,rw}_ok to a constant expression.

Definition at line 705 of file simplify_expr_pointer.cpp.

◆ simplify_rec()

simplify_exprt::resultt simplify_exprt::simplify_rec ( const exprt &  expr)

Definition at line 3138 of file simplify_expr.cpp.

◆ simplify_shifts()

simplify_exprt::resultt simplify_exprt::simplify_shifts ( const shift_exprt &  expr)

Definition at line 1002 of file simplify_expr_int.cpp.

◆ simplify_sign()

simplify_exprt::resultt simplify_exprt::simplify_sign ( const sign_exprt &  expr)

Definition at line 99 of file simplify_expr.cpp.

◆ simplify_typecast()

simplify_exprt::resultt simplify_exprt::simplify_typecast ( const typecast_exprt &  expr)

Definition at line 757 of file simplify_expr.cpp.

◆ simplify_typecast_preorder()

simplify_exprt::resultt simplify_exprt::simplify_typecast_preorder ( const typecast_exprt &  expr)

Definition at line 1343 of file simplify_expr.cpp.

◆ simplify_unary_minus()

simplify_exprt::resultt simplify_exprt::simplify_unary_minus ( const unary_minus_exprt &  expr)

Definition at line 1234 of file simplify_expr_int.cpp.

◆ simplify_unary_plus()

simplify_exprt::resultt simplify_exprt::simplify_unary_plus ( const unary_plus_exprt &  expr)

Definition at line 1227 of file simplify_expr_int.cpp.

◆ simplify_unary_pointer_predicate_preorder()

simplify_exprt::resultt simplify_exprt::simplify_unary_pointer_predicate_preorder ( const unary_exprt &  expr)

Definition at line 56 of file simplify_expr_pointer.cpp.

◆ simplify_update()

simplify_exprt::resultt simplify_exprt::simplify_update ( const update_exprt &  expr)

Definition at line 1525 of file simplify_expr.cpp.

◆ simplify_with()

simplify_exprt::resultt simplify_exprt::simplify_with ( const with_exprt &  expr)

Definition at line 1442 of file simplify_expr.cpp.

◆ unchanged()

static resultt simplify_exprt::unchanged ( exprt  expr)
inlinestatic

Definition at line 137 of file simplify_expr_class.h.

Member Data Documentation

◆ do_simplify_if

bool simplify_exprt::do_simplify_if

Definition at line 100 of file simplify_expr_class.h.

◆ ns

const namespacet& simplify_exprt::ns
protected

Definition at line 286 of file simplify_expr_class.h.

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