2004-11-29 Daniel Berlin <dberlin@dberlin.org>
Fix PR tree-optimization/18673
* tree-ssa-pre.c: Remove splay-tree.h include.
(bitmap_value_replace_in_set): Fix to add if it does not exist.
(find_or_generate_expression): Remove now-wrong condition.
(create_expression_by_pieces): Fix condition and comment reason
for it.
(insert_aux): Fix condition and comment reasons for it.
Factor insertion code from here.
(insert_into_preds_of_block): To here. Fix conditions in factored
function and comment reasons for them.
From-SVN: r91522
