https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3920
--- Comment #10 from Mattias EngdegÄrd <mattiase at acm dot org> --- Stabs is rather obsolete and I don't personally care about it any more. As far as I can tell from the source (GCC 5.3 and GDB 7.10), the problem (wrong CTR numbering in stabs) is still there, but if it were up to me I wouldn't waste any time on it.