https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99920
--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Usually I'm trying to do binary search in these cases, build one tree with the bad compiler, one with good one, cp -al one of the trees to a new dir, make a list of the object files, start with half/half, copy them and touch all, make cc1 cc1plus, test the libgcc compilation, etc. That works if there is a single miscompiled one.
