2011-09-23  Martin Jambor  <mjambor@suse.cz>

	* ipa-prop.h (jump_func_type): Updated comments.
	(ipa_known_type_data): New type.
	(ipa_jump_func): Use it to describe known type jump functions.
	* ipa-prop.c (ipa_print_node_jump_functions_for_edge): Updated to
	reflect the new known type jump function contents.
	(compute_known_type_jump_func): Likewise.
	(combine_known_type_and_ancestor_jfs): Likewise.
	(try_make_edge_direct_virtual_call): Likewise.
	(ipa_write_jump_function): Likewise.
	(ipa_read_jump_function): Likewise.
	* ipa-cp.c (ipa_value_from_known_type_jfunc): New function.
	(ipa_value_from_jfunc): Use ipa_value_from_known_type_jfunc.
	(propagate_accross_jump_function): Likewise.

From-SVN: r179117