#9350: Consider using xchg instead of mfence for CS stores -------------------------------------+------------------------------------- Reporter: tibbe | Owner: Type: feature | Status: new request | Milestone: Priority: normal | Version: 7.9 Component: Compiler | Keywords: Resolution: | Architecture: Unknown/Multiple Operating System: | Difficulty: Easy (less than 1 Unknown/Multiple | hour) Type of failure: | Blocked By: None/Unknown | Related Tickets: Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by tibbe): Herb Sutter argues for using `xchg` over `mfence` in [http://channel9.msdn.com/Shows/Going+Deep/Cpp-and-Beyond-2012-Herb- Sutter-atomic-Weapons-2-of-2 C++ and Beyond 2012: Herb Sutter - atomic<> Weapons, 2 of 2], around 0:38:20. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9350#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler