[LLVMdev] trig language-like code generator generator

[Tzu-Chien Chiu]

i'd like to know what progress you guys have made (not on cvs?).

i don't want to re-invent wheels, and the existing many code generator
generators. i am evaluating many possbile code generation libraries.
at present i give me preferrence to "Prop":

  http://www.cs.nyu.edu/leunga/www/prop.html

and it's portable too.

are there any other good library you could recommend?



On 4/25/05, Chris Lattner <sabre at nondot.org> wrote:
> On Mon, 25 Apr 2005, Tzu-Chien Chiu wrote:
> > http://portal.acm.org/citation.cfm?id=75700
> 
> Oh, tWig.  :)  Yes, tree pattern matching is exactly the direction we are
> heading.  We are slowly making the code generators more and more
> automatically generated as time goes on.  The SelectionDAG infrastructure
> is mean to support exactly this (perform Tree or DAG pattern matching on
> the optimized DAG instead of on the LLVM code).
> 
> This is described here:
> http://llvm.cs.uiuc.edu/docs/CodeGenerator.html
> 
> Currently, we use simple greedy bottom-up matchers that are manually
> written in the <target>ISelPattern.cpp file.  The plan is to extend this
> by allowing targets to write the DAG pattern for each instruction in the
> .td files, then build use an optimal code generator generator to emit the
> matching code.
> 
> This processes of increased automation has been happening slowly over the
> years, but we've made good progress.  Are you interested in helping out?
> 
> -Chris
> 
> > On 4/25/05, Chris Lattner <sabre at nondot.org> wrote:
> >> On Sun, 24 Apr 2005, Tzu-Chien Chiu wrote:
> >>> i'd like to know if there is any plan or existing work to add a Aho's
> >>> trig language like code generator generator?
> >>
> >> Trig is a code generator generator?  Is there any documentation for it
> >> available anywhere?
> >>
> >> -Chris
> >>
> >>> "...If you are starting a new port, we recommend that you write the
> >>> instruction selector using the SelectionDAG infrastructure."
> >>>
> >>> any other things i should know before i write one?
> >>>
> >>> thank you.
> >>>
> >>> _______________________________________________
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> >>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> >>> http://mail.cs.uiuc.edu/mailman/listinfo/llvmdev
> >>>
> >>
> >> -Chris
> >>
> >> --
> >> http://nondot.org/sabre/
> >> http://llvm.cs.uiuc.edu/
> >>
> >
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> >
> 
> -Chris
> 
> --
> http://nondot.org/sabre/
> http://llvm.cs.uiuc.edu/
>