ipa-cp.c (ipcp_value_source): Converted to a template class.

2014-11-14  Martin Jambor  <mjambor@suse.cz>

	* ipa-cp.c (ipcp_value_source): Converted to a template class.  All
	users converted to the same specialization as the using class/function
	or specialization on tree.
	(ipcp_value): Likewise.
	(ipcp_lattice): Likewise.
	(ipcp_agg_lattice): Now derived from tree specialization of
	ipcp_lattice.
	(values_topo): Moved to new class value_topo_info.
	(ipa_lat_is_single_const): Turned into ipcp_lattice::is_single_const.
	Updated all callers.
	(print_lattice): Turned into ipcp_lattice::print.  Updated all
	callers.
	(value_topo_info): New class template.
	(ipa_topo_info): New field constants.  New constructor.
	(build_toporder_info): Do not clear stack_top, only checkign assert
	it.
	(set_lattice_to_bottom): Turned into ipcp_lattice::set_to_bottom.
	Updated all callers.
	(set_lattice_contains_variable): Turned into
	ipcp_lattice::set_contains_variable.  Updated all callers.
	(add_value_source): Turned into ipcp_value::add_source.  Updated all
	callers.
	(allocate_and_init_ipcp_value): New function.
	(add_value_to_lattice): Turned into ipcp_lattice::add_value.  Last
	parameter got default a value.  Updated all callers.
	(add_scalar_value_to_lattice): Removed, users converted to using
	ipcp_lattice::add_value with default value of the last parameter.
	(add_val_to_toposort): Turned to value_topo_info::add_val.  Updated
	all callers.
	(propagate_effects): Made method of value_topo_info.
	(cgraph_edge_brings_value_p): Now a template function.
	(get_info_about_necessary_edges): Likewise.
	(gather_edges_for_value): Likewise.
	(perhaps_add_new_callers): Likewise.
	(decide_about_value): Likewise.
	* ipa-prop.h (ipcp_lattice): Remove fowrward declaration.

From-SVN: r217586