2014-07-16 23:56 GMT+02:00 Johan Tibell <[email protected]>: > My reading of the docs was that if the platform doesn't support the needed > instructions then GCC will generated a call to e.g. __sync_fetch_and_add_1, > where that function *is provided by GCC* as a fallback.
I guess GCC would expect that somebody else will implement the given functionality by an external function. > Now I'm wondering if I'm supposed to supply that fallback. I was told that you cannot reliably emulate those operations in user mode, without loss in performance. _______________________________________________ ghc-devs mailing list [email protected] http://www.haskell.org/mailman/listinfo/ghc-devs
