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https://github.com/Z3Prover/z3
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98 lines
3.9 KiB
C++
98 lines
3.9 KiB
C++
/*++
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Copyright (c) 2012 Microsoft Corporation
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Module Name:
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float_rewriter.h
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Abstract:
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Basic rewriting rules for floating point numbers.
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Author:
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Leonardo (leonardo) 2012-02-02
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Notes:
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--*/
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#ifndef FLOAT_REWRITER_H_
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#define FLOAT_REWRITER_H_
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#include"ast.h"
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#include"rewriter.h"
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#include"params.h"
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#include"fpa_decl_plugin.h"
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#include"mpf.h"
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class fpa_rewriter {
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fpa_util m_util;
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mpf_manager & m_fm;
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bool m_hi_fp_unspecified;
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app * mk_eq_nan(expr * arg);
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app * mk_neq_nan(expr * arg);
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public:
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fpa_rewriter(ast_manager & m, params_ref const & p = params_ref());
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~fpa_rewriter();
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ast_manager & m() const { return m_util.m(); }
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family_id get_fid() const { return m_util.get_fid(); }
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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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br_status mk_app_core(func_decl * f, unsigned num_args, expr * const * args, expr_ref & result);
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br_status mk_eq_core(expr * arg1, expr * arg2, expr_ref & result);
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br_status mk_add(expr * arg1, expr * arg2, expr * arg3, expr_ref & result);
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br_status mk_sub(expr * arg1, expr * arg2, expr * arg3, expr_ref & result);
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br_status mk_mul(expr * arg1, expr * arg2, expr * arg3, expr_ref & result);
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br_status mk_div(expr * arg1, expr * arg2, expr * arg3, expr_ref & result);
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br_status mk_neg(expr * arg1, expr_ref & result);
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br_status mk_rem(expr * arg1, expr * arg2, expr_ref & result);
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br_status mk_abs(expr * arg1, expr_ref & result);
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br_status mk_min(expr * arg1, expr * arg2, expr_ref & result);
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br_status mk_max(expr * arg1, expr * arg2, expr_ref & result);
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br_status mk_fma(expr * arg1, expr * arg2, expr * arg3, expr * arg4, expr_ref & result);
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br_status mk_sqrt(expr * arg1, expr * arg2, expr_ref & result);
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br_status mk_round_to_integral(expr * arg1, expr * arg2, expr_ref & result);
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br_status mk_float_eq(expr * arg1, expr * arg2, expr_ref & result);
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br_status mk_lt(expr * arg1, expr * arg2, expr_ref & result);
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br_status mk_gt(expr * arg1, expr * arg2, expr_ref & result);
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br_status mk_le(expr * arg1, expr * arg2, expr_ref & result);
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br_status mk_ge(expr * arg1, expr * arg2, expr_ref & result);
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br_status mk_is_zero(expr * arg1, expr_ref & result);
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br_status mk_is_nzero(expr * arg1, expr_ref & result);
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br_status mk_is_pzero(expr * arg1, expr_ref & result);
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br_status mk_is_nan(expr * arg1, expr_ref & result);
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br_status mk_is_inf(expr * arg1, expr_ref & result);
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br_status mk_is_normal(expr * arg1, expr_ref & result);
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br_status mk_is_subnormal(expr * arg1, expr_ref & result);
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br_status mk_is_negative(expr * arg1, expr_ref & result);
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br_status mk_is_positive(expr * arg1, expr_ref & result);
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br_status mk_to_ieee_bv(expr * arg1, expr_ref & result);
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br_status mk_to_fp(func_decl * f, unsigned num_args, expr * const * args, expr_ref & result);
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br_status mk_to_fp_unsigned(func_decl * f, expr * arg1, expr * arg2, expr_ref & result);
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br_status mk_rm(expr * arg, expr_ref & result);
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br_status mk_fp(expr * sgn, expr * exp, expr * sig, expr_ref & result);
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br_status mk_to_fp_unsigned(expr * arg1, expr * arg2, expr_ref & result);
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br_status mk_to_ubv(func_decl * f, expr * arg1, expr * arg2, expr_ref & result);
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br_status mk_to_sbv(func_decl * f, expr * arg1, expr * arg2, expr_ref & result);
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br_status mk_to_ieee_bv(func_decl * f, expr * arg, expr_ref & result);
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br_status mk_to_real(expr * arg, expr_ref & result);
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br_status mk_to_ubv_unspecified(unsigned ebits, unsigned sbits, unsigned with, expr_ref & result);
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br_status mk_to_sbv_unspecified(unsigned ebits, unsigned sbits, unsigned with, expr_ref & result);
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br_status mk_to_real_unspecified(unsigned ebits, unsigned sbits, expr_ref & result);
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br_status mk_bvwrap(expr * arg, expr_ref & result);
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br_status mk_bvunwrap(expr * arg, expr_ref & result);
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};
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#endif
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