* Richard Biener: > On Fri, Jul 19, 2019 at 10:30 AM Florian Weimer <fwei...@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.
Oh, I meant using source code only as a portable serialization of the program, instead of serializing unstable, compiler-specific IR. If the whole program does not fit into memory, the compiler will still have to maintain on-disk data structures, but at least there wouldn't a compatibility aspect to those anymore. Thanks, Florian
