#7883: enable GHC LLVM backend to use LLVM provided CAS / Atomicity primitives? -------------------------------------+------------------------------------ Reporter: carter | Owner: carter Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.7 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------ Comment (by rrnewton): A couple additional suggestions copied over from the mailing list: (1) we should use more unique symbols than "cas", especially for this rewriting trick. How about "ghc_cas" or something? (2) it would be great to get at least fetch-and-add in addition to CAS and barriers (3) if we reliably provide this set of special symbols, libraries like atomic-primops may use them in the .cmm and benefit from the CMM->LLVM substitutions -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/7883#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler