mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-29 20:05:51 +00:00
Code Activity

#5215 converting NYI

Browse source
This commit is contained in:
Nikolaj Bjorner 2021-04-27 16:19:54 -07:00
parent 89373d5bf9
commit 308f399224
3 changed files with 24 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

18
src/ast/euf/euf_egraph.cpp
View file

@ -291,7 +291,20 @@ namespace euf {
}
void egraph::set_lbl_hash(enode* n) {
NOT_IMPLEMENTED_YET();
SASSERT(n->m_lbl_hash == -1);
// m_lbl_hash should be different from -1, if and only if,
// there is a pattern that contains the enode. So,
// I use a trail to restore the value of m_lbl_hash to -1.
m_updates.push_back(update_record(n, update_record::lbl_hash()));
unsigned h = hash_u(n->get_expr_id());
n->m_lbl_hash = h & (APPROX_SET_CAPACITY - 1);
// propagate modification to the root m_lbls set.
enode* r = n->get_root();
approx_set & r_lbls = r->m_lbls;
if (!r_lbls.may_contain(n->m_lbl_hash)) {
m_updates.push_back(update_record(r, update_record::lbl_hash()));
r_lbls.insert(n->m_lbl_hash);
}
}
void egraph::pop(unsigned num_scopes) {
@ -357,6 +370,9 @@ namespace euf {
VERIFY(p.r1->value() != l_undef);
p.r1->set_value(l_undef);
break;
case update_record::tag_t::is_lbl_hash:
p.r1->m_lbl_hash = p.m_lbl_hash;
break;
default:
UNREACHABLE();
break;