inproved, commented

[r4340]

diff --git a/ir/tr/entity.c b/ir/tr/entity.c
index c20618b..9104153 100644 (file)
--- a/ir/tr/entity.c
+++ b/ir/tr/entity.c
@@ -46,7 +46,10 @@ void
 init_entity (void)
 {
   assert(unknown_type && "Call init_type before init_entity!");
-  new_rd_entity(NULL, unknown_type, new_id_from_str(UNKNOWN_ENTITY_NAME), unknown_type);
+  assert(!unknown_entity && "Call init_entity only once!");
+  unknown_entity = new_rd_entity(NULL, unknown_type, new_id_from_str(UNKNOWN_ENTITY_NAME), unknown_type);
+  set_entity_visibility(unknown_entity, visibility_external_allocated);
+  set_entity_ld_ident(unknown_entity, get_entity_ident(unknown_entity));
 }
 
 

diff --git a/ir/tr/entity.h b/ir/tr/entity.h
index 216aca9..9de7abb 100644 (file)
--- a/ir/tr/entity.h
+++ b/ir/tr/entity.h
@@ -540,11 +540,29 @@ entity *resolve_ent_polymorphy(type *dynamic_class, entity* static_ent);
  *  exactly one entity unknown. This entity has as owner and as type the unknown type. It is
  *  allocated when initializing the entity module.
  *
+ *  The entity can take the role of any entity, also methods.  It returns default
+ *  values in these cases.
+ *
  *  The following values are set:
- *    mode:  mode_ANY
- *    name:  "type_unknown"
- *    state: layout_fixed
- *    size:  0
+ *    name          = "unknown_entity"
+ *    ld_name       = "unknown_entity"
+ *    owner         = unknown_type
+ *    type          = unknown_type
+ *    visibility    = visibility_external_allocated
+ *    offset        = -1
+ *    variability   = variability_uninitialized
+ *    value         = NULL
+ *    values        = NULL
+ *    val_paths     = NULL
+ *    peculiarity   = peculiarity_existent
+ *    volatility    = volatility_non_volatile
+ *    stickyness    = stickyness_unsticky
+ *    ld_name       = NULL
+ *    overwrites    = NULL
+ *    overwrittenby = NULL
+ *    irg           = NULL
+ *    link          = NULL
+ *
  */
 /* A variable that contains the only unknown entity. */
 extern entity *unknown_entity;

diff --git a/ir/tr/entity_t.h b/ir/tr/entity_t.h
index cf52d88..41309a7 100644 (file)
--- a/ir/tr/entity_t.h
+++ b/ir/tr/entity_t.h
@@ -283,7 +283,7 @@ __set_entity_link(entity *ent, void *l) {
 static INLINE ir_graph *
 __get_entity_irg(const entity *ent) {
   assert(ent && ent->kind == k_entity);
-  assert(is_method_type(ent->type));
+  assert(ent == unknown_entity || is_method_type(ent->type));
   return ent->irg;
 }