http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50474
--- Comment #3 from Mikael Pettersson <mikpe at it dot uu.se> 2011-09-26 09:38:11 UTC --- (In reply to comment #2) > The behaviour seems to be related to the code line > if(r != !!r) This is clearly a dup of PR50380.