https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93906
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #2) > I know r12-4069-ga09bb4a852f82a added the speed up way of doing > conditional_t and internally using __conditional_t. Is the C++ front-end > work still needed here for std::conditional or do people use conditional_t > more now? std::conditional_t is just an alias for std::conditional::type so has all the same problems. Libstdc++ uses a more efficient __conditional_t which is defined differently, but users can't make use of that. There are still some places (where it affects mangled names, so ABI) that we have to use std::conditional. But I no longer really care about having this optimized by the front end.
