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adding regex simplification rewriter (#4440)

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Margus Veanes 2020-05-22 09:55:29 -07:00 • committed by GitHub
parent 18bb90f93d
commit 5d6be3f17f
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5
src/ast/rewriter/seq_rewriter.h
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@ -179,6 +179,9 @@ class seq_rewriter {
br_status mk_re_range(expr* lo, expr* hi, expr_ref& result);
br_status lift_ite(func_decl* f, unsigned n, expr* const* args, expr_ref& result);
br_status mk_bool_app_helper(bool is_and, unsigned n, expr* const* args, expr_ref& result);
bool cannot_contain_prefix(expr* a, expr* b);
bool cannot_contain_suffix(expr* a, expr* b);
expr_ref zero() { return expr_ref(m_autil.mk_int(0), m()); }
@ -233,6 +236,8 @@ public:
void add_seqs(expr_ref_vector const& ls, expr_ref_vector const& rs, expr_ref_pair_vector& new_eqs);
br_status mk_bool_app(func_decl* f, unsigned n, expr* const* args, expr_ref& result);
};