http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35878
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Marc Glisse from comment #2) > The only place I can think of where we could tell the compiler to skip this > check is in the library. I don't know if we should add > if(p==0)__builtin_unreachable(); somewhere, or create a new > attribute((neverzero)) for the pointer in the vector, or something else, but > the knowledge that the pointer is not zero belongs in the library. Yes, I'm inclined to agree.
