https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110380
--- Comment #4 from Gašper Ažman <gasper.azman at gmail dot com> --- John McFarlane noted that pre-initializing coverage datastructures with the results of the constexpr-evaluated traces would also be a possible direction. It does mean the linker needs to then correctly merge those, otherwise you lose constexpr coverage at link time.
