https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108250
--- Comment #5 from Sam James <sam at gentoo dot org> --- (In reply to Andrew Pinski from comment #4) > Do you know which object file inside llvm-tblgen is being miscompiled? > You can do a binary search on object files and then provide the preprocessed > source for that one. Will try find out. > > Also could you reproduce the miscompiling with reverting and with > -fdump-ipa-all ? I suspect you could ... No, interestingly, it works (no hangs) if I use -fdump-ipa-all in the flags to build LLVM. I double checked as I was a bit surprised.