search for: d49072

...t; The intrinsic is close to what Philip Reames suggested on > https://reviews.llvm.org/D41761. > Cool, we'll definitely need *some* intrinsic in the IR to help model source annotations. I still need to think a bit about the interface and model for this... > > Then a later patch (D49072) adds automatic mitigation by inserting the > intrinsic > in necessary locations. > I was never able to get automatic mitigation with an intrinsic to avoid really signiifcant performance problems in the x86 backend. I'll look through your approach to see if you figured out a technique...

Hello all, I've been working for the last month or so on a comprehensive mitigation approach to variant #1 of Spectre. There are a bunch of reasons why this is desirable: - Critical software that is unlikely to be easily hand-mitigated (or where the performance tradeoff isn't worth it) will have a compelling option. - It gives us a baseline on performance for hand-mitigation. - Combined