* Makeifle-in (ipa-devirt.o): New.
(GTFILES): Add ipa-utils.h and ipa-devirt.c
* cgraphunit.c (decide_is_symbol_needed): Do not care about virtuals.
(analyze_functions): Look into possible targets of polymorphic call.
* dumpfile.c (dump_files): Add type-inheritance dump.
* dumpfile.h (TDI_inheritance): New.
* ipa-devirt.c: New file.
* ipa-utils.h (odr_type_d): Forward declare.
(odr_type): New type.
(build_type_inheritance_graph): Declare.
(possible_polymorphic_call_targets): Declare and introduce inline
variant when only edge is pased.
(dump_possible_polymorphic_call_targets): Likewise.
* timevar.def (TV_IPA_INHERITANCE, TV_IPA_VIRTUAL_CALL): New.
* tree.c (type_in_anonymous_namespace_p): Break out from ...
(types_same_for_odr): ... here.
* tree.h (type_in_anonymous_namespace_p): Declare.
* g++.dg/ipa/type-inheritance-1.C: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@201836
138bc75d-0d04-0410-961f-
82ee72b054a4