* tree-optimize.c (init_tree_optimization_passes): Fix flags of

	* tree-optimize.c (init_tree_optimization_passes): Fix flags of
	all_passes and all_ipa_passes.

	* c-common.c: Include cgraph.h
	(handle_externally_visible_attribute): New function.
	(c_common_att): Add "externally_visible" attribute.
	* cgraph.c (decide_is_variable_needed): Obey externally
	visible flag.
	(cgraph_varpool_finalize_decl): Avoid redundant checking.
	* cgraph.h (struct cgraph_node): New flag externally_visible.
	(decide_is_function_needed): Obey externally visible flag.
	(cgraph_finalize_function): Avoid redundant checks.
	(cgraph_function_and_variable_visibility): Bring symbols local
	when asked for.
	* common.opt (fwhole-program): New flag.

	* doc/invoke.texi (-fwhole-program): Document.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@101295 138bc75d-0d04-0410-961f-82ee72b054a4