https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118681

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://gcc.gnu.org/bugzill
                   |                            |a/show_bug.cgi?id=120952

--- Comment #9 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Thanks. I was already thinking we should do this first:

alignment = std::bit_ceil(alignment);

to be safe against callers that violate the precondition to pass a valid
alignment, and then we know it's a power of two. And with your version, we're
not affected by GCC's missed-optimization (filed as Bug 120952).

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