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distribute concat over bvxor and bvor, #2470

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-08-09 10:03:21 -07:00
parent 8579a004d0
commit e2d91ce1fc
1 changed files with 3 additions and 3 deletions
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6
src/ast/rewriter/bv_rewriter.cpp
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@ -1928,10 +1928,10 @@ bool bv_rewriter::distribute_concat(decl_kind k, unsigned n, expr* const* args,
expr* e = to_app(arg)->get_arg(0);
unsigned sz1 = get_bv_size(e);
unsigned sz2 = get_bv_size(arg);
ptr_buffer<expr> args1, args2;
expr_ref_vector args1(m()), args2(m());
for (unsigned j = 0; j < n; ++j) {
args1.push_back(m_mk_extract(sz2-1, sz1, args[j]));
args2.push_back(m_mk_extract(sz1-1,0, args[j]));
args1.push_back(m_mk_extract(sz2 - 1, sz2 - sz1, args[j]));
args2.push_back(m_mk_extract(sz2 - sz1 - 1, 0, args[j]));
}
expr* arg1 = m().mk_app(get_fid(), k, args1.size(), args1.c_ptr());
expr* arg2 = m().mk_app(get_fid(), k, args2.size(), args2.c_ptr());