https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68563
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2015-11-27 CC| |hubicka at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- This was reported on the ML as a valid error. You should always use --disable-werror when building with LTO.