2008-08-29  Richard Guenther  <rguenther@suse.de>

	* common.opt (ftree-store-ccp): Mark as preserved for
	backward compatibility.
	* doc/invoke.texi (-ftree-store-ccp): Remove documentation.
	* tree-pass.h (pass_store_ccp): Remove.
	* tree-ssa-propagate.h (struct prop_value_d): Remove mem_ref field.
	(first_vdef): Remove declaration.
	(get_value_loaded_by): Likewise.
	* tree-ssa-ccp.c (do_store_ccp): Remove.
	(get_default_value): Simplify as do_store_ccp is always false
	now.  Do not initialize mem_ref.
	(set_value_varying): Likewise.
	(canonicalize_float_value): Likewise.
	(set_lattice_value): Likewise.
	(likely_value): Likewise.
	(surely_varying_stmt_p): Likewise.
	(ccp_initialize): Likewise.
	(ccp_lattice_meet): Likewise.
	(ccp_visit_phi_node): Likewise.
	(ccp_fold): Likewise.
	(evaluate_stmt): Likewise.
	(visit_assignment): Likewise.
	(ccp_visit_stmt): Likewise.
	(execute_ssa_ccp): Fold into ...
	(do_ssa_ccp): ... this.
	(do_ssa_store_ccp): Remove.
	(gate_store_ccp): Likewise.
	(pass_store_ccp): Likewise.
	* tree-ssa-copy.c (copy_prop_visit_phi_node): Do not
	initialize mem_ref.
	* tree-ssa-propagate.c (first_vdef): Remove.
	(get_value_loaded_by): Likewise.
	(replace_vuses_in): Likewise.
	(substitute_and_fold): Do not call replace_vuses_in.
	* opts.c (decode_options): Do not set flag_tree_store_ccp.

From-SVN: r139764