https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80038
--- Comment #13 from Florent Hivert <florent.hivert at lri dot fr> --- I've not yet been able to find a small example that shows the regression due to GCC5 ICE. In particular, I'm not sure the problem mentioned by Fournival is not due to a bug in my code (See my question of http://stackoverflow.com/questions/42816920/data-race-in-cilk-home-made-reducer)
