handle unknown_entity

[r6903]

diff --git a/ir/opt/funccall.c b/ir/opt/funccall.c
index 1002450..8f7af6f 100644 (file)
--- a/ir/opt/funccall.c
+++ b/ir/opt/funccall.c
@@ -66,8 +66,12 @@ static void rem_mem_from_const_fkt_calls(ir_node *node, void *env)
         return;
       for (i = 0; i < n_callees; ++i) {
         ent = get_Call_callee(call, i);
+        if (ent == unknown_entity) {
+          /* we don't know which entity is called here */
+          return;
+        }
         if ((get_entity_additional_properties(ent) & mtp_property_const) == 0)
-               return;
+          return;
       }
       ++ctx->n_calls_removed_Sel;
     }