re PR middle-end/56461 (GCC is leaking lots of memory)

	PR middle-end/56461
	* tree-vect-slp.c (vect_supported_load_permutation_p): Free
	load_index sbitmap even if some bit in it isn't set.

From-SVN: r196455

gcc/ChangeLog

 2013-03-05  Jakub Jelinek  <jakub@redhat.com>
 
 	PR middle-end/56461
+	* tree-vect-slp.c (vect_supported_load_permutation_p): Free
+	load_index sbitmap even if some bit in it isn't set.
+
+	PR middle-end/56461
 	* tree-ssa-loop-niter.c (bb_queue): Remove typedef.
 	(discover_iteration_bound_by_body_walk): Change queues to
 	vec<vec<basic_block> > and queue to vec<basic_block>.  Fix up

gcc/tree-vect-slp.c

@@ -1429,7 +1429,10 @@ vect_supported_load_permutation_p (slp_instance slp_instn, int group_size,
  
   for (j = 0; j < group_size; j++)
     if (!bitmap_bit_p (load_index, j))
-      return false;
+      {
+	sbitmap_free (load_index);
+	return false;
+      }
 
   sbitmap_free (load_index);