the cmm pages on the wiki seem out of date

[Edward Z. Yang]

Yes, there were some pretty recent (as in, not present in 7.6) improvements
to C-- syntax.  Updates would be much appreciated; you can probably figure out
what the changes are by snooping the changelogs for compiler/cmm.

Edward

Excerpts from Carter Schonwald's message of Fri Apr 05 20:37:23 -0700 2013:
> Hey all, I've been staring at the cmm primop code in ghc over the past week
> to understand a number of things, and I was just today looking at the
> current cmm documentation on the ghc wiki.
> 
> specifically i've been looking at
> https://github.com/ghc/ghc/blob/master/compiler/cmm/Cmm.hs
> https://github.com/ghc/ghc/blob/master/compiler/cmm/CmmParse.y
> and
> https://github.com/ghc/ghc/blob/master/rts/PrimOps.cmm
> 
> versus the wiki docs
> http://hackage.haskell.org/trac/ghc/wiki/Commentary/Compiler/CmmType
> 
> it looks like CMM supports a nicer function definition convention than the
> wiki implies.
> (and presumably that also would hold  for the ffi for calling user written
> cmm code too?)
> 
> 
> If the wiki is out of date, i'm happy to make a first pass at trying to add
> this info somewhere,
> 
> thanks
> -Carter