Resurrecting ticky code

[Simon Peyton Jones]

We don’t have "vectored returns" any more, so you can drop that one.

For "magic eight" there are some native-wordsize constants defined already.
E.g. see how PrelRules.wordSizeInBits is computed.

Thanks to Jan for helping

SImon

|  -----Original Message-----
|  From: ghc-devs [mailto:ghc-devs-bounces at haskell.org] On Behalf Of
|  Mateusz Lenik
|  Sent: 03 November 2014 17:19
|  To: ghc-devs at haskell.org
|  Subject: Resurrecting ticky code
|  
|  Hi *,
|  
|  Recently I started working on resurrecting ticky code[1] and got to
|  the point where I can compile and run bumpHistogram as well as
|  accompanying code in RTS.
|  
|  Work in progress version can be found at [2], but there are few things
|  remaining to get it working:
|  
|  * missing calls to tickyReturnNewCon, tickyUnboxedTupleReturn and
|    tickyVectoredReturn need to be added. Unfortunately I'm not familiar
|  with the
|    code enough to find the right place to insert them.
|  
|  * magic eight needs to be replaced by a constant both Haskell and C
|  files.
|    Preprocessor macro seems to be the simplest choice here, however I
|  don't find
|    it the cleanest way to do it.
|  
|  I would be very grateful if someone could take a look and point me
|  into the right direction.
|  
|  
|  Best,
|  Mateusz
|  
|  1: https://ghc.haskell.org/trac/ghc/ticket/8308
|  2: https://github.com/mlen/ghc/compare/ticky
|  
|  --
|  Mateusz Lenik
|  GPG: B865 E86A D36C 11A5 C1F8  C1D9 AAD4 CEC9 6B94 92C4