re PR c++/57208 (Latest chromium compilation fails with enabled LTO)

re PR c++/57208 (Latest chromium compilation fails with enabled LTO)

2013-06-27  Martin Jambor  <mjambor@suse.cz>

	PR lto/57208
	* ipa-ref.h (ipa_maybe_record_reference): Declare.
	* ipa-ref.c (ipa_maybe_record_reference): New function.
	* cgraphclones.c (cgraph_create_virtual_clone): Use it.
	* ipa-cp.c (create_specialized_node): Record potential references from
	aggvals.
	* Makefile.in (ipa-ref.o): Add IPA_REF_H to dependencies.

From-SVN: r200468