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seq API, tuning

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-01-03 17:16:13 -08:00
parent 8e80fb830b
commit a3c4972c85
3 changed files with 237 additions and 14 deletions
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35
src/math/automata/automaton.h
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@ -292,7 +292,8 @@ public:
// Generalized:
// Src - E -> dst - t -> dst1 => Src - t -> dst1 if dst is final => each Src is final
//
// src - e -> dst - ET -> dst1 => src - ET - dst1 if in_degree(dst) = 1, src != dst
// src - e -> dst - ET -> Dst1 => src - ET -> Dst1 if in_degree(dst) = 1, src != dst
// Src - E -> dst - et -> dst1 => Src - et -> dst1 if out_degree(dst) = 1, src != dst
//
void compress() {
for (unsigned i = 0; i < m_delta.size(); ++i) {
@ -339,24 +340,42 @@ public:
add(mvs1[k]);
}
}
else if (false && 1 == out_degree(dst) && all_epsilon_in(dst) && init() != dst && !is_final_state(dst)) {
//
// Src - E -> dst - et -> dst1 => Src - et -> dst1 if out_degree(dst) = 1, src != dst
//
else if (1 == out_degree(dst) && all_epsilon_in(dst) && init() != dst && !is_final_state(dst)) {
move const& mv = m_delta[dst][0];
T* t = mv.t();
unsigned dst1 = mv.dst();
T* t = mv.t();
unsigned_vector src0s;
moves const& mvs = m_delta_inv[dst];
moves mvs1;
for (unsigned k = 0; k < mvs.size(); ++k) {
SASSERT(mvs[k].is_epsilon());
src0s.push_back(mvs[k].src());
mvs1.push_back(move(m, mvs[k].src(), dst1, t));
}
for (unsigned k = 0; k < src0s.size(); ++k) {
remove(src0s[k], dst, 0);
add(move(m, src0s[i], dst1, t));
for (unsigned k = 0; k < mvs1.size(); ++k) {
remove(mvs1[k].src(), dst, 0);
add(mvs1[k]);
}
remove(dst, dst1, t);
--j;
continue;
}
//
// Src1 - ET -> src - e -> dst => Src1 - ET -> dst if out_degree(src) = 1, src != init()
//
else if (1 == out_degree(src) && init() != src && (!is_final_state(src) || is_final_state(dst))) {
moves const& mvs = m_delta_inv[src];
moves mvs1;
for (unsigned k = 0; k < mvs.size(); ++k) {
mvs1.push_back(move(m, mvs[k].src(), dst, mvs[k].t()));
}
for (unsigned k = 0; k < mvs1.size(); ++k) {
remove(mvs1[k].src(), src, mvs1[k].t());
add(mvs1[k]);
}
}
else {
continue;
}
@ -482,7 +501,7 @@ private:
void remove_dead_states() {
unsigned_vector remap;
for (unsigned i = 0; i < m_delta.size(); ++i) {
}
}