[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 #22 from Aldy Hernandez <aldyh at gcc dot gnu.org> 2012-06-14 21:15:10 UTC ---
FYI, backported to 4.7.