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1646a41b2f
- ensure mk_extract performs simplification to distribute over extract and removing extract if the range is the entire bit-vector - ensure bool_rewriter simplifeis disjunctions when applicable.
75 lines
2 KiB
C++
75 lines
2 KiB
C++
/*++
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Copyright (c) 2011 Microsoft Corporation
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Module Name:
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th_rewriter.h
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Abstract:
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Rewriter for applying all builtin (cheap) theory rewrite rules.
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Author:
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Leonardo (leonardo) 2011-04-07
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Notes:
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--*/
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#pragma once
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#include "ast/ast.h"
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#include "ast/rewriter/rewriter_types.h"
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#include "util/params.h"
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class expr_substitution;
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class expr_solver;
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class th_rewriter {
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struct imp;
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imp * m_imp;
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params_ref m_params;
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public:
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th_rewriter(ast_manager & m, params_ref const & p = params_ref());
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~th_rewriter();
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ast_manager & m () const;
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void updt_params(params_ref const & p);
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static void get_param_descrs(param_descrs & r);
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unsigned get_cache_size() const;
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unsigned get_num_steps() const;
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void operator()(expr_ref& term);
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void operator()(expr * t, expr_ref & result);
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void operator()(expr * t, expr_ref & result, proof_ref & result_pr);
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expr_ref operator()(expr * n, unsigned num_bindings, expr * const * bindings);
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expr_ref mk_app(func_decl* f, unsigned num_args, expr* const* args);
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expr_ref mk_app(func_decl* f, ptr_vector<expr> const& args) { return mk_app(f, args.size(), args.data()); }
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bool reduce_quantifier(quantifier * old_q,
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expr * new_body,
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expr * const * new_patterns,
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expr * const * new_no_patterns,
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expr_ref & result,
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proof_ref & result_pr);
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void cleanup();
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void reset();
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void set_substitution(expr_substitution * s);
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// Dependency tracking is very coarse.
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// The rewriter just keeps accumulating the dependencies of the used substitutions.
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// The following methods are used to recover and reset them.
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// Remark: reset_used_dependecies will reset the internal cache if get_used_dependencies() != 0
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expr_dependency * get_used_dependencies();
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void reset_used_dependencies();
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void set_solver(expr_solver* solver);
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};
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