https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66037
Manuel López-Ibáñez <manu at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2015-05-06 CC| |manu at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #2 from Manuel López-Ibáñez <manu at gcc dot gnu.org> --- (In reply to ktkachov from comment #0) > Would be nice if these variables at least were documented in options.texi Agreed. And document how to use them properly. Perhaps add some functions that can simplify its use. It seems nobody is actually using this mechanism and prefer to use Init(-1): https://gcc.gnu.org/ml/gcc-patches/2015-05/msg00439.html