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add simplifiation pass

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-02-22 11:21:53 -08:00
parent ab9bcfdcce
commit d1e95a133b
10 changed files with 115 additions and 36 deletions
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20
src/sat/sat_cut_simplifier.cpp
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@ -192,12 +192,13 @@ namespace sat {
m_aig_cuts.add_node(head, ite_op, 3, args);
m_stats.m_xites++;
};
aig_finder af(s);
af.set(on_and);
af.set(on_ite);
clause_vector clauses(s.clauses());
if (m_config.m_learned2aig) clauses.append(s.learned());
af(clauses);
af(clauses);
std::function<void (literal_vector const&)> on_xor =
[&,this](literal_vector const& xors) {
@ -231,13 +232,15 @@ namespace sat {
xf.set(on_xor);
xf(clauses);
}
std::function<void(uint64_t, bool_var_vector const&, bool_var)> on_lut =
[&,this](uint64_t lut, bool_var_vector const& vars, bool_var v) {
m_stats.m_xluts++;
// m_aig_cuts.add_cut(v, lut, vars);
m_aig_cuts.add_node(v, lut, vars.size(), vars.c_ptr());
};
if (s.m_config.m_cut_lut) {
std::function<void(uint64_t, bool_var_vector const&, bool_var)> on_lut =
[&,this](uint64_t lut, bool_var_vector const& vars, bool_var v) {
m_stats.m_xluts++;
// m_aig_cuts.add_cut(v, lut, vars);
m_aig_cuts.add_node(v, lut, vars.size(), vars.c_ptr());
};
lut_finder lf(s);
lf.set(on_lut);
lf(clauses);
@ -567,11 +570,12 @@ namespace sat {
}
void cut_simplifier::add_dont_cares(vector<cut_set> const& cuts) {
if (!m_config.m_enable_dont_cares)
if (!s.m_config.m_cut_dont_cares)
return;
cuts2bins(cuts);
bins2dont_cares();
dont_cares2cuts(cuts);
m_aig_cuts.simplify();
}
/**