http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58359
--- Comment #7 from Marc Glisse <glisse at gcc dot gnu.org> --- (In reply to Anatoly Sinyavin from comment #3) > So I suggest processing __builtin_unreachable immediately after "cfg" pass > (cfg buiding). That seems awfully early. Don't we want to at least wait until after VRP1, maybe even DOM1 or later? __builtin_unreachable should be made not to hurt other optimizations too much, but it shouldn't be made useless either.
