tree-vect-data-refs.c (vect_compute_data_ref_alignment): Use…

tree-vect-data-refs.c (vect_compute_data_ref_alignment): Use get_pointer_alignment to see if base isn't sufficiently aligned.

	* tree-vect-data-refs.c (vect_compute_data_ref_alignment): Use
	get_pointer_alignment to see if base isn't sufficiently aligned.

From-SVN: r175348

gcc/ChangeLog

+2011-06-23  Jakub Jelinek  <jakub@redhat.com>
+
+	* tree-vect-data-refs.c (vect_compute_data_ref_alignment): Use
+	get_pointer_alignment to see if base isn't sufficiently aligned.
+
 2011-06-23  Jan Hubicka  <jh@suse.cz>
 
 	PR tree-optimize/49373

gcc/tree-vect-data-refs.c

@@ -859,7 +859,9 @@ vect_compute_data_ref_alignment (struct data_reference *dr)
       || (TREE_CODE (base_addr) == SSA_NAME
 	  && tree_int_cst_compare (ssize_int (TYPE_ALIGN_UNIT (TREE_TYPE (
 						      TREE_TYPE (base_addr)))),
-				   alignment) >= 0))
+				   alignment) >= 0)
+      || (get_pointer_alignment (base_addr, TYPE_ALIGN (vectype))
+	  >= TYPE_ALIGN (vectype)))
     base_aligned = true;
   else
     base_aligned = false;