diff options
Diffstat (limited to 'gcc/analyzer/store.cc')
| -rw-r--r-- | gcc/analyzer/store.cc | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/analyzer/store.cc b/gcc/analyzer/store.cc index 35f66a4b6fc..f5f8fe061f5 100644 --- a/gcc/analyzer/store.cc +++ b/gcc/analyzer/store.cc @@ -1519,6 +1519,18 @@ binding_cluster::get_any_binding (store_manager *mgr, = get_binding_recursive (mgr, reg)) return direct_sval; + /* If we had a write to a cluster of unknown size, we might + have a self-binding of the whole base region with an svalue, + where the base region is symbolic. + Handle such cases by returning sub_svalue instances. */ + if (const svalue *cluster_sval = maybe_get_simple_value (mgr)) + { + /* Extract child svalue from parent svalue. */ + region_model_manager *rmm_mgr = mgr->get_svalue_manager (); + return rmm_mgr->get_or_create_sub_svalue (reg->get_type (), + cluster_sval, reg); + } + /* If this cluster has been touched by a symbolic write, then the content of any subregion not currently specifically bound is "UNKNOWN". */ if (m_touched) |