https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71537
--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> --- N.B. for char_traits::char::find() we almost certainly want to use __builtin_strchr and have the FE expand it in-place in constant expressions, as the performance of our current code sucks, see PR 66414.
