Re: Using Lighning instead of LLVM in Faust

[Paul Cercueil]

Hi Stéphane,


Le sam., févr. 29, 2020 at 14:05, Stéphane Letz <address@hidden> a 
écrit :
> Thanks.
>
> Reading the documentation I understand that Lightning is quite lower 
> level (compared to MIR https://github.com/vnmakarov for instance) 
> since the API directly deals with registers yes? So the API user has 
> to so his own « register allocation/handling machinery »? There is 
> no notion on an infinite set of variables that can be defined and 
> used ?

That's correct. Lightning provides you with registers and it's up to 
you how to use them.

-Paul

> Stéphane
>
> >  Le 24 févr. 2020 à 16:30, Paul Cercueil <address@hidden> a 
> > écrit :
> >
> >  Hi Stéphane,
> >
> >  The current code would need some small changes to work without a 
> > MMU (does the ESP32 have one?) but for the rest Lightning does the 
> > job just fine.
> >
> >  -Paul
> >
> >
> >  Le dim., févr. 23, 2020 at 13:34, Stéphane Letz <address@hidden> a 
> > écrit :
> > >  Hi,
> > >  I'm a investigating the use of Lighning instead of the already 
> > > implemented LLVM code for the Faust compiler (http://faust.grame.fr)
> > >  We have a class that translates an intermediate code in LLVM here: 
> > > https://github.com/grame-cncm/faust/blob/master-dev/compiler/generator/interpreter/fbc_llvm_compiler.hh. 
> > > I would like to test Lighning instead. The goal is to have a simple 
> > > JIT chain (even if slower compared to LLVM), simpler to deploy on 
> > > OS like Android, possibly embedded devices like the Bela board 
> > > (https://bela.io), ESP32 (https://esp32.com), Teensy 
> > > (https://www.pjrc.com/teensy/).
> > >  Is is a reasonable expectation in terms of what is currently 
> > > possible and implemented in Lighning?
> > >  Thanks.