fix

[r22152]

diff --git a/ir/opt/ldstopt.c b/ir/opt/ldstopt.c
index f4ba1f9..39ce34c 100644 (file)
--- a/ir/opt/ldstopt.c
+++ b/ir/opt/ldstopt.c
@@ -1398,7 +1398,7 @@ static unsigned optimize_store(ir_node *store) {
        entity = find_entity(ptr);
 
        /* a store to an entity which is never read is unnecessary */
-       if (!(get_entity_usage(entity) & ir_usage_read)) {
+       if (entity != NULL && !(get_entity_usage(entity) & ir_usage_read)) {
                ldst_info_t *info = get_irn_link(store);
                if (info->projs[pn_Store_X_except] == NULL) {
                        exchange(info->projs[pn_Store_M], get_Store_mem(store));
@@ -2209,6 +2209,7 @@ void optimize_load_store(ir_graph *irg) {
        /* Handle graph state */
        if (env.changes) {
                set_irg_outs_inconsistent(irg);
+               set_irg_entity_usage_state(irg, ir_entity_usage_not_computed);
        }
 
        if (env.changes & CF_CHANGED) {