On Tue, 2006-19-12 at 13:13 +0000, Simon Marlow wrote: > > Is this me opening up a Pandora's Box of ignorance here? Or is LLVM > > potentially interesting? (And were someone motivated into perhaps > > trying to make an LLVM back-end, where would one start to poke around > > in, say, the GHC codebase to even begin to implement this? And how > > insane would they be driven by the process?)
> Apologies for the slow reply. Actually I think this is a pretty cool idea > (with > a disclaimer that I know very nearly nothing about LLVM). Provided there are > no > serious gotchas, what you need to do is write a new backend for GHC that > translates Cmm to LLVM. This should be pretty straightforward: for example, > the > Cmm->C code generator is only 1000 lines of Haskell: > > http://darcs.haskell.org/ghc/compiler/cmm/PprC.hs > > I hope LLVM lets you put data next to code, which is what GHC needs for its > info > tables. Also I hope it lets you fix global registers. Well, I'm almost entirely ignorant of LLVM and of Haskell -- especially the internals of both. That makes me ideally suited for this project since I'm not aware that it's impossible. :D Do you mind, Simon, if, since I've pretty much decided that I want to tackle this, I pick your brains a lot for the Haskell internals side of the fence? -- Michael T. Richter Email: [EMAIL PROTECTED], [EMAIL PROTECTED] MSN: [EMAIL PROTECTED], [EMAIL PROTECTED]; YIM: michael_richter_1966; AIM: YanJiahua1966; ICQ: 241960658; Jabber: [EMAIL PROTECTED] "To [the Chinese], all other people are barbarians." --The Dalai Lama
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