On Mon, 3 Feb 2003, Simon Peyton-Jones wrote:
| I want to use GHC as a backend for my experimental compiler. | I'm trying to modify it to accept styx code from my compiler, and I'm | having some trouble working out where I need to make changes. In truth, | GHC is more haskell code than I've ever seen before in one place, and I'm | a bit lost: can anyone suggest which modules I should become familiar with | and which I should leave alone?
You don't say what 'styx code' is. My advice: either translate styx to Haskell, or to External Core. (Probably the latter.) GHC can read both of these in without modification.
External Core is a typed lambda calculus.
Yes, I know External Core: I'm using it as my input language. (GHC is my frontend as well.) The optimisation algorithms I want to implement need a lower-level language than Core, which is why I want to use Styx, the native generation intermediate language. Abstract C is also an option, but if I've got to hack GHC to get either of them going, I'd rather do it for Styx. Mark -- no-one takes up music to play their own instrument -- Randy Hiatt, Chalkhills list