[Bug tree-optimization/52558] write introduction incorrect wrt the C++11 memory model

[aldyh at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52558

--- Comment #23 from Aldy Hernandez <aldyh at gcc dot gnu.org> 2012-07-02 
18:25:42 UTC ---
BTW, for anyone still stuck on this, you need to use the following when
compiling the testcase:

--param allow-store-data-races=0

Eventually, this will be the default for C++1x, or the C++ memory model.