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Minor pass on synchronize transform

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This commit is contained in:
Arie Gurfinkel 2018-08-20 16:11:19 -04:00
parent 24044429a7
commit 7bff74dec0
2 changed files with 52 additions and 24 deletions
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36
src/muz/transforms/dl_mk_synchronize.h
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@ -61,16 +61,45 @@ namespace datalog {
scoped_ptr<rule_dependencies> m_deps;
scoped_ptr<rule_stratifier> m_stratifier;
map<symbol, func_decl*, symbol_hash_proc, symbol_eq_proc> m_cache;
bool is_recursive(rule &r, func_decl &decl) const;
bool is_recursive(rule &r, expr &e) const;
// symbol table that maps new predicate names to corresponding
// func_decl
map<symbol, func_decl*, symbol_hash_proc, symbol_eq_proc> m_cache;
/// returns true if decl is recursive in the given rule
/// requires that decl appears in the tail of r
bool is_recursive(rule &r, func_decl &decl) const;
bool is_recursive(rule &r, expr &e) const {
SASSERT(is_app(&e));
return is_app(&e) && is_recursive(r, *to_app(&e)->get_decl());
}
/// returns true if the top-level predicate of app is recursive
bool has_recursive_premise(app * app) const;
item_set_vector add_merged_decls(ptr_vector<app> & apps);
/**
Compute Cartesian product of decls and create a new
predicate for each element. For example, if decls is
( (a, b), (c, d) ) )
create new predicates: a!!c, a!!d, b!!c, and b!!d
*/
void add_new_rel_symbols(unsigned idx, item_set_vector const & decls,
ptr_vector<func_decl> & buf, bool & was_added);
/**
Convert vector of predicate apps into a single app. For example,
(Foo a) (Bar b) becomes (Foo!!Bar a b)
*/
app_ref product_application(ptr_vector<app> const & apps);
/**
Replace a given rule by a rule in which conjunction of
predicates is replaced by a single product predicate
*/
void replace_applications(rule & r, rule_set & rules,
ptr_vector<app> & apps);
@ -85,7 +114,6 @@ namespace datalog {
svector<bool> & new_tail_neg,
unsigned & tail_idx);
app_ref product_application(ptr_vector<app> const & apps);
rule_ref product_rule(rule_ref_vector const & rules);
void merge_rules(unsigned idx, rule_ref_vector & buf,