http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51181
--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-11-17 21:10:25 UTC --- I would recommend figuring out which specific patch part of the recent TM / C++ atomic work is at the root of the problem and thus CC-ing either Aldy or Andrew or Rth about it