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stubs for stronger array equality rewriting

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-03-03 14:11:05 -08:00
parent 6c331279ae
commit 7b4c919fcf
4 changed files with 110 additions and 19 deletions
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17
src/ast/array_decl_plugin.cpp
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@ -580,6 +580,23 @@ bool array_recognizers::is_const(expr* e, expr*& v) const {
return is_const(e) && (v = to_app(e)->get_arg(0), true);
}
bool array_recognizers::is_store_ext(expr* _e, expr_ref& a, expr_ref_vector& args, expr_ref& value) {
ast_manager& m = a.m();
if (is_store(_e)) {
app* e = to_app(_e);
a = e->get_arg(0);
unsigned sz = e->get_num_args();
args.reset();
for (unsigned i = 1; i < sz-1; ++i) {
args.push_back(e->get_arg(i));
}
value = e->get_arg(sz-1);
return true;
}
return false;
}
array_util::array_util(ast_manager& m):
array_recognizers(m.mk_family_id("array")),
m_manager(m) {