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

        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

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 601a1364f7236137ee93d987537973ab196c715b..e250f0e2a0d80311b957e911116c45c645ad2f0f 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+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>
 

diff --git a/gcc/tree-vectorizer.c b/gcc/tree-vectorizer.c
index e01330242558bcf92a685064111e8d3b91cad37f..14e455d25c9bdca2f9e20104bf1cee03f32ab470 100644 (file)
--- a/gcc/tree-vectorizer.c
+++ b/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;
 }