https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98641
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- We could make immediate use of these in libstdc++. We have std::align and std::assume_aligned in include/bits/align.h, and aligned_ceil in src/c++17/memory_resource.cc, and a couple of places in libsupc++/new_opa.cc and maybe other places too.
