http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60517
--- Comment #12 from Manuel López-Ibáñez <manu at gcc dot gnu.org> --- (In reply to Marc Glisse from comment #11) > Created attachment 32551 [details] > first try > > With clobber removal now. Why do you want to remove the clobber? I understood your idea to avoid duplicated warnings was to add __builtin_unreachable and replace the value. Could be possible to have a special var/value that is marked as artificial such that the warning code never warns for statements containing this variable? We already have DECL_ARTIFICIAL in the FE but I am not sure whether that survives to the middle-end.
