[Bug c++/60272] atomic<>::compare_exchange_weak has spurious store and can cause race conditions

[max.wittal at mwittal dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60272

--- Comment #9 from Max Wittal <max.wittal at mwittal dot de> ---
I still get this bug in gcc version 5.2.1 20151010 on x86_64-linux-gnu.

Please see attached code.