🚀 go-pugleaf

In article <1772@uqcspe.cs.uq.oz.au> warwick@cs.uq.oz.au (Warwick Allison) writes:

>   The Queensland University of Technology has developed a Modula-2 compiler
>   which produces C as intermediate code.
>
>   I think this is an excellent idea, as it means the optimisation techniques
>   developed over many years for C can be utilized for Modula-2.

But I don't think there are techniques for optimising C that cannot be applied
to Modula-2 directly. Indeed, some optimisations must be easier on Modula-2
because the language has fewer loopholes (consider generating code for
MODULA-2 and C  `for' statements).

There is a problem generating C for things that have no close equivalents,
such as nested procedures, something like

 PROCEDURE A;
  
  PROCEDURE B;
   BEGIN
    A;
  END B;
 
 BEGIN
  A;
  B;
 END A;

cannot easily be mapped to C. Gardens Point seems to produce incorrect C
for something like this. 


--
Ian W Moor
  Internet: iwm@doc.ic.ac.uk
  JANET: iwm@uk.ac.ic.doc
           
 Department of Computing,  That which you call a crime when one man does it,
 Imperial College.         you call government when done by many.
 180 Queensgate          
 London SW7 UK.