* cgraphunit.c (analyze_functions) Use update_type_inheritance_graph.

	* ipa-utils.h (update_type_inheritance_graph): Declare.
	(possible_polymorphic_call_target_p): Declare.
	(possible_polymorphic_call_target_p): New.
	* ipa-devirt.c: Update toplevel comments.
	(cached_polymorphic_call_targets): Move up.
	(odr_type_d): Move ID down.
	(polymorphic_type_binfo_p): Update comment.
	(odr_hasher::remove): Likewise;
	(get_odr_type): Set anonymous_namespace.
	(dump_odr_type): Dump it.
	(dump_type_inheritance_graph): Do not ICE when there are no ODR types.
	(maybe_record_node): Record node in cached_polymorphic_call_targets.
	(record_binfo): Add comment.
	(free_polymorphic_call_targets_hash): Do not ICE when cache is not built.
	(devirt_node_removal_hook): Do not iCE when cache is freed.
	(possible_polymorphic_call_target_p): New predicate.
	(update_type_inheritance_graph): New function.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@201917 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 14 insertions, 0 deletions

diff --git a/gcc/ipa-utils.h b/gcc/ipa-utils.h
index f35ddb5dc54..3c6c93c10a1 100644
--- a/gcc/ipa-utils.h
+++ b/gcc/ipa-utils.h
@@ -50,12 +50,15 @@ tree get_base_var (tree);
 struct odr_type_d;
 typedef odr_type_d *odr_type;
 void build_type_inheritance_graph (void);
+void update_type_inheritance_graph (void);
 vec <cgraph_node *>
 possible_polymorphic_call_targets (tree, HOST_WIDE_INT,
 				   bool *final = NULL,
 				   void **cache_token = NULL);
 odr_type get_odr_type (tree, bool insert = false);
 void dump_possible_polymorphic_call_targets (FILE *, tree, HOST_WIDE_INT);
+bool possible_polymorphic_call_target_p (tree, HOST_WIDE_INT,
+					 struct cgraph_node *n);
 
 /* Return vector containing possible targets of polymorphic call E.
    If FINALP is non-NULL, store true if the list is complette. 
@@ -87,6 +90,17 @@ dump_possible_polymorphic_call_targets (FILE *f, struct cgraph_edge *e)
   dump_possible_polymorphic_call_targets (f, e->indirect_info->otr_type,
 					  e->indirect_info->otr_token);
 }
+
+/* Return true if N can be possibly target of a polymorphic call of
+   E.  */
+
+inline bool
+possible_polymorphic_call_target_p (struct cgraph_edge *e,
+				    struct cgraph_node *n)
+{
+  return possible_polymorphic_call_target_p (e->indirect_info->otr_type,
+					     e->indirect_info->otr_token, n);
+}
 #endif  /* GCC_IPA_UTILS_H  */