* 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