Building GENERIC trees

[Tom Crick]

Quoting Paul Brook <paul@codesourcery.com>:
> > >  Hi again, the thing about GENERIC is that it's not all that
> > > documented, however there were a thread about this a while
> > > ago on the gcc mailinglist, search through the archives and
> > > you will find a mail which states ' if it's not in these
> > > files then it's not GENERIC, ( and some files are named, fx.
> > > tree.h and some more ). I dare not give you an answer
> > > straight from my head because the probability of error is too large.
> 
> tree.def contains a definitions of the tree nodes, tree.h contains macros for
> accessing them.

Hi all,

Apologies for replying to an old(ish) post, but wanted to ask some follow-up
questions after looking at tree.h and tree.def:

Where can I find the conversion of C trees into GENERIC (the famous 'genericize'
function), as I would like to build from this to see how I could build GENERIC
trees for BCPL.

Once GENERIC trees are built (in this case, probably for a subset of the BCPL
language), how do you go about linking them into the GCC chain - how do you
'latch-on' to the 'gimplification' and then into the back end?

Also, are there any plans for better documentation of GENERIC and GIMPLE e.g.
giving language definitions or a 'how to build GENERIC trees' guide? :-)

Thanks for your help.

Regards,

Tom

--
BCPL for GCC
http://sourceforge.net/projects/gccbcpl/