https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93093
--- Comment #4 from JeanHeyd Meneide <phdofthehouse at gmail dot com> --- I changed the library test cases, but maybe there needs to be something that helps the library developers tag a constant evaluation function as something that should be ran later / deferred. I don't have any good ideas, just spitballing. Either way, the new patch passes by not testing for some of the cases similar to what's in the Standard passage in [support.srcloc]: https://gcc.gnu.org/ml/gcc-patches/2020-01/msg00036.html