22 Jun
2018
22 Jun
'18
6:59 p.m.
I conjecture, but might be wrong, that on a number of architectures, there
isn't a native CAS plus memory ordering stuff? eg
https://en.wikipedia.org/wiki/Memory_ordering
on the other hand, it might be a simple oversight (in which case good
catch!)
i dont have SMP memory models properly digested well enough to say which
though
On Fri, Jun 22, 2018 at 2:43 AM David Feuer
Currently, atomicWriteIORef is implemented using atomicModifyIORef. That seems pretty heavy for the job, allocating closures and forcing thunks. Is there a reason not to do it with casMutVar#? _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs