https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61392
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords|ice-on-invalid-code |ABI, ice-on-valid-code
--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> ---
(In reply to Jason Merrill from comment #2)
> The use of ddx without reference to a B object is only allowed if it is the
> whole unevaluated operand, i.e. decltype(ddx).
Oops, that restriction was removed by DR 850. So ice on valid.
