Minor predict.c improvement

[Jan Hubicka]

hi,
this patch makes predict_loop to predict even loop with exits not
dominating the latch when their iteration bound is known.

Honza

Index: ChangeLog
===================================================================
--- ChangeLog   (revision 193101)
+++ ChangeLog   (working copy)
@@ -1,5 +1,10 @@
 2012-11-02  Jan Hubicka  <j...@suse.cz>
 
+       * predict.c (predict_loops): Predict also exits not dominating
+       latch.
+
+2012-11-02  Jan Hubicka  <j...@suse.cz>
+
        * predict.c (predict_loops): Do not predict infinite loops.
 
 2012-11-02  Jan Hubicka  <j...@suse.cz>
Index: predict.c
===================================================================
--- predict.c   (revision 193101)
+++ predict.c   (working copy)
@@ -1419,7 +1419,7 @@ predict_loops (void)
 
          predict_extra_loop_exits (ex);
 
-         if (number_of_iterations_exit (loop, ex, &niter_desc, false))
+         if (number_of_iterations_exit (loop, ex, &niter_desc, false, false))
            niter = niter_desc.niter;
          if (!niter || TREE_CODE (niter_desc.niter) != INTEGER_CST)
            niter = loop_niter_by_eval (loop, ex);