https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62077
--- Comment #68 from Richard Biener <rguenth at gcc dot gnu.org> --- (In reply to Sven C. Dack from comment #67) > (In reply to Richard Biener from comment #66) > > The issue re-appears with GCC 6, the workaround doing > > --enable-stage1-checking=release still works. > > > > Note that the comparison we do with LTO bootstrap is quite pointless as we > > only compile the internal IL at LTO streaming time but not the final result > > of optimization. For that we'd need to compare cc1, cc1plus, etc. itself. > To call it pointless is as dismissive of the effort as saying you'd be > willing to accept any indeterministic behaviour, including magic, into > computer science as long as it produces great software. Let's not be this > lazy. I'm calling it pointless to motivate adding comparison of the optimized binaries themselves. I'm not arguing to remove bootstrap comparison completely - but maybe to remove LTO IL comparison if we got optimized binary comparison in exchange.
