re PR tree-optimization/18400 (wrong unrolling after vectorization due to…

re PR tree-optimization/18400 (wrong unrolling after vectorization due to invalid loop->nb_iterations)

        PR tree-opt/18400
        * tree-vectorizer.c (make_loop_iterate_ntimes): Set loop->nb_iterations.
        (vect_transform_loop_bound): Set loop->nb_iterations.

From-SVN: r90626

gcc/ChangeLog

 2004-11-14  Dorit Naishlos  <dorit@il.ibm.com>
+
+	PR tree-opt/18400
+	* tree-vectorizer.c (make_loop_iterate_ntimes): Set loop->nb_iterations.
+	(vect_transform_loop_bound): Set loop->nb_iterations.
+
+2004-11-14  Dorit Naishlos  <dorit@il.ibm.com>
             Andrew Pinski  <pinskia@physics.uc.edu>
 
 	PR tree-opt/18425

gcc/tree-vectorizer.c

@@ -636,6 +636,8 @@ make_loop_iterate_ntimes (struct loop *loop, tree niters,
 
   if (vect_debug_stats (loop) || vect_debug_details (loop))
     print_generic_expr (dump_file, cond_stmt, TDF_SLIM);
+
+  loop->nb_iterations = niters;
 }
 
 
@@ -2883,6 +2885,8 @@ vect_transform_loop_bound (loop_vec_info loop_vinfo, tree niters)
 
   if (vect_debug_details (NULL))
     print_generic_expr (dump_file, cond_stmt, TDF_SLIM);
+
+  loop->nb_iterations = new_loop_bound;
 }