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Added QF_FPABV logic, default tactic, and the asIEEEBV conversion function.

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Signed-off-by: Christoph M. Wintersteiger <cwinter@microsoft.com>
This commit is contained in:
Christoph M. Wintersteiger 2012-12-01 15:51:33 +00:00
parent 2d1a6bf270
commit f78e595b56
10 changed files with 90 additions and 11 deletions
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30
src/ast/float_decl_plugin.cpp
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@ -348,13 +348,13 @@ func_decl * float_decl_plugin::mk_to_float(decl_kind k, unsigned num_parameters,
// When the bv_decl_plugin is installed, then we know how to convert 3 bit-vectors into a float!
sort * fp = mk_float_sort(domain[2]->get_parameter(0).get_int(), domain[1]->get_parameter(0).get_int()+1);
symbol name("asFloat");
return m_manager->mk_func_decl(name, arity, domain, fp, func_decl_info(m_family_id, k, num_parameters, parameters));
}
return m_manager->mk_func_decl(name, arity, domain, fp, func_decl_info(m_family_id, k, num_parameters, parameters));
}
else {
// .. Otherwise we only know how to convert rationals/reals.
if (!(num_parameters == 2 && parameters[0].is_int() && parameters[1].is_int()))
m_manager->raise_exception("expecting two integer parameters to asFloat");
if (arity != 2 && arity != 3)
if (arity != 2 && arity != 3)
m_manager->raise_exception("invalid number of arguments to asFloat operator");
if (!is_rm_sort(domain[0]) || domain[1] != m_real_sort)
m_manager->raise_exception("sort mismatch");
@ -373,6 +373,23 @@ func_decl * float_decl_plugin::mk_to_float(decl_kind k, unsigned num_parameters,
}
}
func_decl * float_decl_plugin::mk_to_ieee_bv(decl_kind k, unsigned num_parameters, parameter const * parameters,
unsigned arity, sort * const * domain, sort * range) {
if (!m_bv_plugin)
m_manager->raise_exception("asIEEEBV unsupported; use a logic with BV support");
if (arity != 1)
m_manager->raise_exception("invalid number of arguments to asIEEEBV");
if (!is_float_sort(domain[0]))
m_manager->raise_exception("sort mismatch");
// When the bv_decl_plugin is installed, then we know how to convert a float to an IEEE bit-vector.
unsigned float_sz = domain[0]->get_parameter(0).get_int() + domain[0]->get_parameter(1).get_int();
parameter ps[] = { parameter(float_sz) };
sort * bv_srt = m_bv_plugin->mk_sort(m_bv_fid, 1, ps);
symbol name("asIEEEBV");
return m_manager->mk_func_decl(name, 1, domain, bv_srt, func_decl_info(m_family_id, k, num_parameters, parameters));
}
func_decl * float_decl_plugin::mk_func_decl(decl_kind k, unsigned num_parameters, parameter const * parameters,
unsigned arity, sort * const * domain, sort * range) {
switch (k) {
@ -420,6 +437,8 @@ func_decl * float_decl_plugin::mk_func_decl(decl_kind k, unsigned num_parameters
return mk_rm_unary_decl(k, num_parameters, parameters, arity, domain, range);
case OP_FLOAT_FUSED_MA:
return mk_fused_ma(k, num_parameters, parameters, arity, domain, range);
case OP_TO_IEEE_BV:
return mk_to_ieee_bv(k, num_parameters, parameters, arity, domain, range);
default:
m_manager->raise_exception("unsupported floating point operator");
return 0;
@ -462,7 +481,10 @@ void float_decl_plugin::get_op_names(svector<builtin_name> & op_names, symbol co
op_names.push_back(builtin_name("min", OP_FLOAT_MIN));
op_names.push_back(builtin_name("max", OP_FLOAT_MAX));
op_names.push_back(builtin_name("asFloat", OP_TO_FLOAT));
op_names.push_back(builtin_name("asFloat", OP_TO_FLOAT));
if (m_bv_plugin)
op_names.push_back(builtin_name("asIEEEBV", OP_TO_IEEE_BV));
}
void float_decl_plugin::get_sort_names(svector<builtin_name> & sort_names, symbol const & logic) {