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Update sgraph and seq_plugin: egraph ref, hash matrix, subst cache, sgraph pointer

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Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
This commit is contained in:
copilot-swe-agent[bot] 2026-03-02 21:14:34 +00:00
parent 1885753690
commit cfea2db8bf
8 changed files with 174 additions and 42 deletions
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20
src/ast/euf/euf_seq_plugin.cpp
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@ -22,6 +22,7 @@ Author:
#include "ast/euf/euf_seq_plugin.h"
#include "ast/euf/euf_egraph.h"
#include "ast/euf/euf_sgraph.h"
#include "ast/ast_pp.h"
namespace euf {
@ -46,6 +47,12 @@ namespace euf {
}
unsigned enode_concat_hash::operator()(enode* n) const {
sgraph* sg = sg_ptr ? *sg_ptr : nullptr;
if (sg) {
snode* sn = sg->find(n->get_expr());
if (sn && sn->has_cached_hash())
return sn->assoc_hash();
}
if (!is_any_concat(n, seq))
return n->get_id();
enode_vector leaves;
@ -71,13 +78,22 @@ namespace euf {
return true;
}
seq_plugin::seq_plugin(egraph& g):
seq_plugin::seq_plugin(egraph& g, sgraph* sg):
plugin(g),
m_seq(g.get_manager()),
m_rewriter(g.get_manager()),
m_concat_hash(m_seq),
m_sg(sg),
m_sg_owned(sg == nullptr),
m_concat_hash(m_seq, &m_sg),
m_concat_eq(m_seq),
m_concat_table(DEFAULT_HASHTABLE_INITIAL_CAPACITY, m_concat_hash, m_concat_eq) {
if (!m_sg)
m_sg = alloc(sgraph, g.get_manager(), g, false);
}
seq_plugin::~seq_plugin() {
if (m_sg_owned && m_sg)
dealloc(m_sg);
}
void seq_plugin::register_node(enode* n) {