* ipa-icf.c (symbol_compare_collection::symbol_compare_collection):
	cleanup.
	(sem_function::get_hash): Do not hash DECL_DISREGARD_INLINE_LIMITS,
	DECL_DECLARED_INLINE_P and DECL_IS_OPERATOR_NEW.
	(sem_item::compare_referenced_symbol_properties): New.
	(sem_item::hash_referenced_symbol_properties): New.
	(sem_item::compare_cgraph_references): Rename to ...
	(sem_item::compare_symbol_references): ... this one; use
	compare_referenced_symbol_properties.
	(sem_function::equals_wpa): Do not compare
	DECL_DISREGARD_INLINE_LIMITS, DECL_DECLARED_INLINE_P,
	DECL_IS_OPERATOR_NEW; compare pointer sizes.
	(sem_item::update_hash_by_addr_refs): Call
	hash_referenced_symbol_properties.
	(sem_item::update_hash_by_local_refs): Cleanup.
	(sem_function::merge): Do not mix up symbol properties.
	(sem_variable::equals_wpa): Use compare_symbol_references.
	* ipa-icf.h (sem_item::compare_referenced_symbol_properties): New.
	(sem_item::hash_referenced_symbol_properties): New.
	(sem_item::compare_symbol_references): New.
	(sem_item::compare_cgraph_references): Remove.

From-SVN: r222372