+2005-01-17 Kazu Hirata <kazu@cs.umass.edu>
+
+ * tree-ssa-dom.c (tree_ssa_dominator_optimize): Don't call
+ mark_dfs_back_edges.
+
2005-01-16 Daniel Berlin <dberlin@dberlin.org>
* tree-ssa-pre.c (add_to_sets): s1 may be NULL.
for (i = 0; i < num_referenced_vars; i++)
var_ann (referenced_var (i))->current_def = NULL;
- /* Mark loop edges so we avoid threading across loop boundaries.
- This may result in transforming natural loop into irreducible
- region. */
- mark_dfs_back_edges ();
-
/* Create our hash tables. */
avail_exprs = htab_create (1024, real_avail_expr_hash, avail_expr_eq, free);
vrp_data = htab_create (ceil_log2 (num_ssa_names), vrp_hash, vrp_eq, free);