Re: [RFC] Design issues with multiple IRs

[Diego Novillo <dnovillo at redhat dot com>]

On Thu, 06 Dec 2001, Joseph S. Myers wrote:

> It is a bug when any tree-* files depend on any c-* files.  Enough
> infrastructure for functions as trees should be language-independent that
> such dependencies do not occur.
> 
OK.  I will rename the current tree-* files as they're mostly
C-specific.  I will also try and put the common code in tree-*.


> > But that doesn't fix the problem of what to do with common code.
> > We will likely have a lot of tree code that can be shared among
> > the different front-ends.  Maybe we should start putting common
> > code in tree-* and have C-specific files in c-tree-*?
> 
> C tree handling (in c/*.c, say) ought in principle to be lowering
> C-specific trees to language-independent ones (with explicit ordering and
> aliasing constraints represented in the latter).
> 
OK.  So, in the future, analysis and transformation passes done
on the language-independent trees would go into gcc/* together
with the RTL transformation passes, right?

Thanks.  Diego.