re PR tree-optimization/32663 (revision 126369 went into an infinite loop)
2007-07-11 Daniel Berlin <dberlin@dberlin.org>
PR tree-optimization/32663
* tree.h (VALUE_HANDLE_VUSES): Remove.
(struct tree_value_handle): Remove vuses.
* tree-vn.c (create_value_handle_for_expr): Don't set
VALUE_HANDLE_VUSES.
* tree-ssa-pre.c (expression_vuses): New.
(alloc_expression_id): Set up expression_vuses.
(get_expression_vuses): New.
(set_expression_vuses): Ditto.
(clear_expression_ids): Modify for expression_vuses.
(phi_translate_1): Ditto.
(phi_translate_set): Ditto.
(value_dies_in_block_x): Ditto
(valid_in_sets): Ditto.
(add_to_sets): Ditto.
(find_existing_value_expr): Ditto.
(create_value_handle_for_expr): Ditto.
(make_values_for_stmt): Ditto.
(vuse_equiv): Remove.
From-SVN: r126568