On Mon, Sep 17, 2018 at 5:52 PM Jim Jagielski <j...@jagunet.com> wrote: > > Would like to also propose for apr-1.7...
How about 128bit? :p There are __int128 (gcc) and _m128 (MSVC) and most 64bit intel/amd CPUs support cmpxchg16b. Intrinsics work on gcc, and (eg.) _InterlockedCompareExchange128 on Windows. This can be very useful to avoid the ABA problem when doing atomics with 64bit pointers. For instance, MPM event could benefit from that (see PR 62141)...