[Bug libstdc++/99277] C++2a synchronisation is inefficient in GCC 11 and can't be fixed later

[hjl.tools at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99277

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
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   Target Milestone|---                         |11.0