Comment 8 for bug 1274057

Hmm... The discussion in that email thread (https://lkml.org/lkml/2014/1/22/294 - Thank you Botao!) points to:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58854
And this seems to be in perfect agreement with my comment #3. I am not 100% sure yet (need to take a better look at the generated code), but it does look like that gcc bug.