[Bug libstdc++/71312] mutexes for shared_ptr atomics should be padded to cacheline size

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71312

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Mon Apr 29 12:55:29 2019
New Revision: 270649

URL: https://gcc.gnu.org/viewcvs?rev=270649&root=gcc&view=rev
Log:
PR libstdc++/71312 Increase alignment of pooled mutexes

        PR libstdc++/71312
        * src/c++11/shared_ptr.cc (get_mutex): Align pool mutexes to 64 bytes.

Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/src/c++11/shared_ptr.cc