* Jakub Jelinek:
Or if we recorded all command line options we care about into LTO bytecode (Optimization/Target options are recorded already on a per-function basis but I'm worried about others), just have a gcc driver mode that turns a non-fat LTO object into normal non-LTO object.
I think that would be useful, it would match the LLVM LTO approach. It's not going to be a perfect replay, but it's at least as good as other uses of that LTO data, so I think it will be fine.
Thanks, Florian