Re: code generation design

Denis Washington wrote:
> The Question I Have Is Very General, but I'll ask it anyway: how can
> you create a good code generator which separates a general front-end
> from the back-ends? Which things can be generalized for all processor
> architectures?


lcc (A retargetable compiler for ANSI C)[1] is a good case study. The
book discusses design and implementation of such a system from ground
up in a dense but readable way. It builds upon a simple yet versatile
type of code generator (template matching) that was discussed briefly
in Aho & Ullman[2].


--Toby


[1] http://net.gurus.com/bk/abe/0805316701
[2] http://net.gurus.com/bk/abe/0201000229


(These are abebooks urls)


> [The front end is almost by definition the stuff that doesn't depend
> on the back end. Front ends typically know a little bit about the
> processor architecture so they can lay out structures and otherwise
> allocate memory, but nearly everything else doesn't vary from one
> target to another. -John]

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