https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119012
--- Comment #21 from Levi Zim <rsworktech at outlook dot com> --- (In reply to Sam James from comment #18) > (In reply to Levi Zim from comment #17) > > (In reply to Sam James from comment #16) > > > (In reply to Levi Zim from comment #15) > > > > > > As long as the flag is passed correctly and applied to both the stage2 + > > > stage3 builds, then the flag can't be to blame (just a trigger for it, > > > rather than some problem with the flag itself). > > > > It is passed through BOOT_CFLAGS so I suppose it is passed correctly. > > Yeah, that should be fine. > > > I don't know why the comparison failure occur as I am not familiar with the > > GCC internals. But building some of the commits yields a crash in RTL > > pass(https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119012#c10). Would it be > > related to the bisected commit? > > It means the compiler itself got miscompiled. That's why it's really helpful > to know precisely how to reproduce it manually (minimal set of commands and > flags set), outside of any package manager. > > Then we can compare the built objects, one built just before that commit, > and one at that commit. Could you share the steps to do it? I think doing it directly in the packaging environment would be feasible.
