ipa-cp: Better representation of aggregate values in call contexts

ipa-cp: Better representation of aggregate values in call contexts

This patch extends the previous one by using the same data structure
to represent aggregate values in classes ipa_auto_call_arg_values and
ipa_call_arg_values.

This usually simplifies handling and makes allocations of memory much
cheaper because only a single vectore is needed, as opposed to vectors
with each element pointing at other vecs.  The only functions which
unfortunately are a bit more complec are estimate_local_effects in
ipa-cp.cc and ipa_call_context::equal_to but I hope not too much - the
latter could probably be shorteneed at the expense of readability.

The patch removes types ipa_agg_value ipa_agg_value_set which is no
longer used with it.  This means that we could replace the "_argagg_"
part of the types introduced by the previous patches with more
reasonable "_agg_" - possibly as a follow-up patch.

gcc/ChangeLog:

2022-08-26  Martin Jambor  <mjambor@suse.cz>

	* ipa-prop.h (ipa_agg_value): Remove type.
	(ipa_agg_value_set): Likewise.
	(ipa_copy_agg_values): Remove function.
	(ipa_release_agg_values): Likewise.
	(ipa_auto_call_arg_values) Add a forward declaration.
	(ipa_call_arg_values): Likewise.
	(class ipa_argagg_value_list): New constructors, added member function
	value_for_index_p.
	(class ipa_auto_call_arg_values): Removed the destructor and member
	function safe_aggval_at.  Use ipa_argagg_values for m_known_aggs.
	(class ipa_call_arg_values): Removed member function safe_aggval_at.
	Use ipa_argagg_values for m_known_aggs.
	(ipa_get_indirect_edge_target): Removed declaration.
	(ipa_find_agg_cst_for_param): Likewise.
	(ipa_find_agg_cst_from_init): New declaration.
	(ipa_agg_value_from_jfunc): Likewise.
	(ipa_agg_value_set_from_jfunc): Removed declaration.
	(ipa_push_agg_values_from_jfunc): New declaration.
	* ipa-cp.cc (ipa_agg_value_from_node): Renamed to
	ipa_agg_value_from_jfunc, made public.
	(ipa_agg_value_set_from_jfunc): Removed.
	(ipa_push_agg_values_from_jfunc): New function.
	(ipa_get_indirect_edge_target_1): Removed known_aggs parameter, use
	avs for this purpose too.
	(ipa_get_indirect_edge_target): Removed the overload working on
	ipa_auto_call_arg_values, use ipa_argagg_value_list in the remaining
	one.
	(devirtualization_time_bonus): Use ipa_argagg_value_list and
	ipa_get_indirect_edge_target_1 instead of
	ipa_get_indirect_edge_target.
	(context_independent_aggregate_values): Removed function.
	(gather_context_independent_values): Work on ipa_argagg_value_list.
	(estimate_local_effects): Likewise, define some iterator variables
	only in the construct where necessary.
	(ipcp_discover_new_direct_edges): Adjust the call to
	ipa_get_indirect_edge_target_1.
	(push_agg_values_for_index_from_edge): Adjust the call
	ipa_agg_value_from_node which has been renamed to
	ipa_agg_value_from_jfunc.
	* ipa-fnsummary.cc (evaluate_conditions_for_known_args): Work on
	ipa_argagg_value_list.
	(evaluate_properties_for_edge): Replace manual filling in aggregate
	values with call to ipa_push_agg_values_from_jfunc.
	(estimate_calls_size_and_time): Work on ipa_argagg_value_list.
	(ipa_cached_call_context::duplicate_from): Likewise.
	(ipa_cached_call_context::release): Likewise.
	(ipa_call_context::equal_to): Likewise.
	* ipa-prop.cc (ipa_find_agg_cst_from_init): Make public.
	(ipa_find_agg_cst_for_param): Removed function.
	(ipa_find_agg_cst_from_jfunc_items): New function.
	(try_make_edge_direct_simple_call): Replace calls to
	ipa_agg_value_set_from_jfunc and ipa_find_agg_cst_for_param with
	ipa_find_agg_cst_from_init and ipa_find_agg_cst_from_jfunc_items.
	(try_make_edge_direct_virtual_call): Replace calls to
	ipa_agg_value_set_from_jfunc and ipa_find_agg_cst_for_param with
	simple query of constant jump function and a call to
	ipa_find_agg_cst_from_jfunc_items.
	(ipa_auto_call_arg_values::~ipa_auto_call_arg_values): Removed.