Backport from LTO branch:

	Backport from LTO branch:

	2008-05-05  Kenneth Zadeck <zadeck@naturalbridge.com>
		    Jan Hubicka  <jh@suse.cz>

	* ipa-pure-const.c
	(init_state, finish_state, set_function_state, generate_summary):
	New functions.
	(scan_stmt): Renamed from scan_function.  Changed to keep state in
	local static vars rather than cgraph aux field.
	(propagate): Renamed from static_execute. Changed to keep state in
	local static vars rather than cgraph aux field.
	(pass_ipa_pure_const): Changed from SIMPLE_IPA_PASS to IPA_PASS.
	* tree-pass.h (pass_ipa_pure_const): Turn into IPA_PASS.

	2008-07-15  Kenneth Zadeck <zadeck@naturalbridge.com>

	* tree-pass.h (pass_ipa_reference): Make into ipa_opt_pass.
	* ipa-reference.c (init_function_info, generate_summary,
	propagate): New functions.
	(analyze_function):  Call init_function_info.
	(static_execute): Stripped into generate_summary and propagate.
	(pass_ipa_reference): Made into ipa_opt_pass.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@139378 138bc75d-0d04-0410-961f-82ee72b054a4