------- Comment #4 from rguenth at gcc dot gnu dot org  2008-05-02 14:53 -------
It looks sub-optimal.  But we should try to figure out why and what is wrong.

The optimality can be fixed with

Index: tree-ssa-loop-ivopts.c
===================================================================
--- tree-ssa-loop-ivopts.c      (revision 134885)
+++ tree-ssa-loop-ivopts.c      (working copy)
@@ -4716,7 +4716,8 @@ try_add_cand_for (struct ivopts_data *da
     {
       cand = iv_cand (data, i);

-      if (cand->iv->base_object != NULL_TREE)
+      if (cand->iv->base_object != NULL_TREE
+         || POINTER_TYPE_P (TREE_TYPE (cand->iv->base)))
        continue;

       if (iv_ca_cand_used_p (ivs, cand))

or similar.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36038

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