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#5516

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expose ability to expand select/store and select/ite (lambdas are always expanded) during pre-processing for N.P. Lopes.
This commit is contained in:
Nikolaj Bjorner 2021-09-01 17:44:17 -07:00
parent ba68fba419
commit cf9e55fa96
2 changed files with 4 additions and 4 deletions
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7
src/ast/rewriter/array_rewriter.cpp
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@ -31,7 +31,7 @@ void array_rewriter::updt_params(params_ref const & _p) {
m_expand_store_eq = p.expand_store_eq();
m_expand_nested_stores = p.expand_nested_stores();
m_blast_select_store = p.blast_select_store();
m_expand_select_ite = false;
m_expand_select_ite = p.expand_select_ite();
}
void array_rewriter::get_param_descrs(param_descrs & r) {
@ -226,8 +226,7 @@ br_status array_rewriter::mk_select_core(unsigned num_args, expr * const * args,
result = subst(q->get_expr(), _args.size(), _args.data());
inv_var_shifter invsh(m());
invsh(result, _args.size(), result);
return BR_REWRITE_FULL;
return BR_REWRITE_FULL;
}
if (m_util.is_map(args[0])) {
@ -698,7 +697,7 @@ br_status array_rewriter::mk_eq_core(expr * lhs, expr * rhs, expr_ref & result)
if (m_util.is_const(lhs, v) && m_util.is_store(rhs)) {
unsigned n = to_app(rhs)->get_num_args();
result = m().mk_and(m().mk_eq(lhs, to_app(rhs)->get_arg(0)),
m().mk_eq(v, to_app(rhs)->get_arg(n - 1)));
m().mk_eq(v, to_app(rhs)->get_arg(n - 1)));
return BR_REWRITE2;
}
if (m_util.is_const(lhs, v) && m_util.is_const(rhs, w)) {

1
src/params/array_rewriter_params.pyg
View file

@ -4,5 +4,6 @@ def_module_params(module_name='rewriter',
params=(("expand_select_store", BOOL, False, "conservatively replace a (select (store ...) ...) term by an if-then-else term"),
("blast_select_store", BOOL, False, "eagerly replace all (select (store ..) ..) term by an if-then-else term"),
("expand_nested_stores", BOOL, False, "replace nested stores by a lambda expression"),
("expand_select_ite", BOOL, False, "expand select over ite expressions"),
("expand_store_eq", BOOL, False, "reduce (store ...) = (store ...) with a common base into selects"),
("sort_store", BOOL, False, "sort nested stores when the indices are known to be different")))