if (VOID_TYPE_P (ttl) || VOID_TYPE_P (ttr)
|| (target_cmp = comp_target_types (type, rhstype))
|| is_opaque_pointer
- || (c_common_unsigned_type (mvl)
- == c_common_unsigned_type (mvr)))
+ || (unsigned_type_for (mvl)
+ == unsigned_type_for (mvr)))
{
if (pedantic
&& ((VOID_TYPE_P (ttl) && TREE_CODE (ttr) == FUNCTION_TYPE)