> Whats left > =========== > Functionality is pretty much complete, but there are a few minor lose > ends still to deal with. They could be done after a merge, in the > next stage, or required before... you tell me :-) > > - potentially implement -f[no]-inline-atomics (to never produce > inline code and always call the library) and > -f[no]-atomic-compare-swap-loop (To not fall back to a > compare_and_swap loop to implement missing functionality) > > - unaligned objects have undefined behaviour at the moment. > Behaviour could be defined and add alignment checks and a parameter > to __atomic_is_lock_free() for alignment checking purposes. Anything > which doesn't map to one of the properly aligned 5 sized built-ins > gets a library call.
> - A bit of C++ template restructuring in the include files to remove > the old fall back locked implementation and fully use the new > __atomic builtins. (*in progress now*) Hit me off-line about this. Hopefully I can help expedite. > - Change external library calls for __atomic_op_fetch routines. > (*patch submitted already*) > > - There are a bunch of new tests that have been developed along the > way, but I I expect to spend the next 2 months writing more detailed > and specific runtime and compile time tests. And of course, fixing > any of the fall out from those tests. Yes. I don't see this as a blocker for the merge. > The final word > ============= > So what is the opinion/consensus on merging the branch? It would be > nice to get this infrastructure in place for this release so we can > get people to start using it, and then we can work out any issues > that arise. > > I'd have Aldy do the actual merge because if I do something will go > amok for sure. I wont be around this weekend to fix any fallout, but > I am around until Friday evening. I'm around all next week. I don't > anticipate much problem since this is all new functionality for the > most part, and mainline was merged with the branch a week or two ago. I am really expecting this branch to be merged for 4.7. The current status is very presentable IMHO. -benjamin
