https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78977
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- (In reply to Hannes Hauswedell from comment #3) > > if it does, then we really need self-contained small test. > > Like I said, it doesn't happen on all the time and I have had difficulties > extracting it. I could make something smaller than our whole repo, but it > would likely still be quite a lot of code. Or is there some way I can make > GCC dump an intermediate version of all the code that it actually uses for > building the binary? We can reduce it ourselves, if you provide preprocessed source for the compilation unit in which it happens, plus g++ command line options. But without access to FreeBSD we also need to know what the double argument is (unless it is a compile time constant) and what FreeBSD snprintf prints (unless it is the "0.3\000\377\177\000\000" you mentioned earlier).
