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count internal nodes, use to block expanding use of hoist, #6683

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This commit is contained in:
Nikolaj Bjorner 2023-04-12 19:40:19 -07:00
parent 444238bc53
commit e8222433c3
3 changed files with 63 additions and 2 deletions
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9
src/ast/rewriter/bool_rewriter.cpp
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@ -20,6 +20,7 @@ Notes:
#include "params/bool_rewriter_params.hpp"
#include "ast/rewriter/rewriter_def.h"
#include "ast/ast_lt.h"
#include "ast/for_each_expr.h"
#include <algorithm>
void bool_rewriter::updt_params(params_ref const & _p) {
@ -268,14 +269,18 @@ br_status bool_rewriter::mk_nflat_or_core(unsigned num_args, expr * const * args
return BR_DONE;
}
#if 1
br_status st;
st = m_hoist.mk_or(buffer.size(), buffer.data(), result);
if (st != BR_FAILED) {
unsigned count1 = get_num_internal_exprs(result);
unsigned count2 = get_num_internal_exprs(buffer.size(), buffer.data());
if (count1 > count2)
st = BR_FAILED;
}
if (st == BR_DONE)
return BR_REWRITE1;
if (st != BR_FAILED)
return st;
#endif
if (s) {
ast_lt lt;