1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/cfgexpand.c b/gcc/cfgexpand.c
index 9de3e51c673..4c27e762df5 100644
--- a/gcc/cfgexpand.c
+++ b/gcc/cfgexpand.c
@@ -1241,8 +1241,9 @@ expand_one_var (tree var, bool toplevel, bool really_expand)
       if (really_expand)
         expand_one_register_var (origvar);
     }
-  else if (!host_integerp (DECL_SIZE_UNIT (var), 1))
+  else if (! valid_constant_size_p (DECL_SIZE_UNIT (var)))
     {
+      /* Reject variables which cover more than half of the address-space.  */
       if (really_expand)
 	{
 	  error ("size of variable %q+D is too large", var);