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add note about transform

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2022-03-18 19:13:35 -07:00
parent 81a5e56c89
commit a9d7026724
1 changed files with 13 additions and 16 deletions
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29
src/muz/transforms/dl_mk_rule_inliner.cpp
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@ -44,6 +44,11 @@ Subsumption transformation (remove rule):
P(x) := P(x) or (exists y . Q(y) & phi(x,y))
For plan_inlining:
TODO: order of rule inlining would affect model converter?
so shouldn't model converter process inlined rules in a specific (topopologial) order?
--*/
@ -377,18 +382,15 @@ namespace datalog {
return something_forbidden;
}
void mk_rule_inliner::plan_inlining(rule_set const & orig)
{
void mk_rule_inliner::plan_inlining(rule_set const & orig) {
count_pred_occurrences(orig);
scoped_ptr<rule_set> candidate_inlined_set = create_allowed_rule_set(orig);
while (forbid_preds_from_cycles(*candidate_inlined_set)) {
while (forbid_preds_from_cycles(*candidate_inlined_set))
candidate_inlined_set = create_allowed_rule_set(orig);
}
if (forbid_multiple_multipliers(orig, *candidate_inlined_set)) {
if (forbid_multiple_multipliers(orig, *candidate_inlined_set))
candidate_inlined_set = create_allowed_rule_set(orig);
}
TRACE("dl", tout<<"rules to be inlined:\n" << (*candidate_inlined_set); );
@ -402,16 +404,13 @@ namespace datalog {
for (rule_stratifier::item_set * stratum : comps) {
SASSERT(stratum->size() == 1);
func_decl * pred = *stratum->begin();
for (rule * r : candidate_inlined_set->get_predicate_rules(pred)) {
for (rule * r : candidate_inlined_set->get_predicate_rules(pred))
transform_rule(orig, r, m_inlined_rules);
}
}
TRACE("dl", tout << "inlined rules after mutual inlining:\n" << m_inlined_rules; );
for (rule * r : m_inlined_rules)
datalog::del_rule(m_mc, *r, l_undef);
for (rule * r : m_inlined_rules) {
datalog::del_rule(m_mc, *r, l_undef);
}
}
bool mk_rule_inliner::transform_rule(rule_set const& orig, rule * r0, rule_set& tgt) {
@ -444,14 +443,12 @@ namespace datalog {
const rule_vector& pred_rules = m_inlined_rules.get_predicate_rules(pred);
for (rule * inl_rule : pred_rules) {
rule_ref inl_result(m_rm);
if (try_to_inline_rule(*r.get(), *inl_rule, i, inl_result)) {
if (try_to_inline_rule(*r.get(), *inl_rule, i, inl_result))
todo.push_back(inl_result);
}
}
}
if (modified) {
if (modified)
datalog::del_rule(m_mc, *r0, l_undef);
}
return modified;
}