diff --git a/gcc/loop-invariant.c b/gcc/loop-invariant.c
index f8405dd..b0e84a7 100644
--- a/gcc/loop-invariant.c
+++ b/gcc/loop-invariant.c
@@ -1931,7 +1931,8 @@ move_loop_invariants (void)
       curr_loop = loop;
       /* move_single_loop_invariants for very large loops
 	 is time consuming and might need a lot of memory.  */
-      if (loop->num_nodes <= (unsigned) LOOP_INVARIANT_MAX_BBS_IN_LOOP)
+      if (loop->num_nodes <= (unsigned) LOOP_INVARIANT_MAX_BBS_IN_LOOP
+	  && ! optimize_loop_nest_for_size_p (loop))
 	move_single_loop_invariants (loop);
     }