https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59521
--- Comment #19 from Martin Liška <marxin at gcc dot gnu.org> --- (In reply to Eric Gallager from comment #18) > (In reply to Martin Liška from comment #17) > > Unfortunately I decided to postpone it to GCC 9.x. > > GCC 9.x development is ongoing now. Yes, I've just installed first part of switch enhancement patches. I'm definitely planning to do this PR in GCC 9.1.