[Bug tree-optimization/56360] Loop invariant motion can introduce speculative store

[ian at airs dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56360

--- Comment #1 from Ian Lance Taylor <ian at airs dot com> 2013-02-17 04:21:28 UTC ---
The speculative store can be disabled via --param allow-store-data-races=0.

So perhaps the question is: shouldn't that be set by -std=gnu++11?