dbcd32f889
* class.c (is_really_empty_class): Add ignore_vptr parm. While looking at PR86485, I noticed that many uses of is_really_empty_class were overlooking that it returned true for a class with only a vptr; initialization of such a class is not trivial. Marek's P1064 patch fixed one place in constexpr.c to also check for a vtable, but there are several others that still don't. This patch requires callers to explicitly choose which behavior they want. Currently the uses in constexpr.c want to consider the vptr, and other uses don't. * class.c (is_really_empty_class): Add ignore_vptr parm. (trivial_default_constructor_is_constexpr): Pass it. * call.c (build_over_call): Pass it. * constexpr.c (cxx_eval_constant_expression): Pass it instead of checking TYPE_POLYMORPHIC_P. (cxx_eval_component_reference, potential_constant_expression_1): Pass it. * cp-gimplify.c (simple_empty_class_p): Pass it. * init.c (expand_aggr_init_1): Pass it. From-SVN: r269402 |
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