[Bug c++/80630] gcc fails to compile constexpr with -O0/-O1

[vsevolod.livinskij at frtk dot ru]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80630

Vsevolod Livinskiy <vsevolod.livinskij at frtk dot ru> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #1 from Vsevolod Livinskiy <vsevolod.livinskij at frtk dot ru> ---
Missed out-of-line definition for A::debug_typeid:

constexpr uint32_t A::debug_typeid;