2012-05-16  Richard Guenther  <rguenther@suse.de>

	* tree-inline.c (insert_init_stmt): Do not call
	mark_symbols_for_renaming.
	(setup_one_parameter): Avoid initializing unused parameters.
	(declare_return_variable): Properly handle DECL_BY_REFERENCE
	return vars in SSA form.

From-SVN: r187593