[EXT] Re: Can LTO minor version be updated in backward compatible way ?

[Richard Biener]

On Fri, Jul 19, 2019 at 10:30 AM Florian Weimer <fweimer@redhat.com> wrote:
>
> * Romain Geissler:
>
> > That may fly in the open source world, however I expect some vendors
> > shipping proprietary code might be fine with assembly/LTO
> > representation of their product, but not source.
>
> They can't ship LTO today anyway due to the format incompatibility, so
> that's not really an argument against source-based LTO.

Source-based LTO doesn't really work unless you can re-synthesize
source from the IL.  At least I don't see how you can do whole-program
analysis on source and then cut it into appropriate pieces, duplicating
some things and some not to make up for the parallel final compile step.

Richard.

> Thanks,
> Florian