Subject: Re: Compiling NetBSD with another compiler.
To: Christoph Egger <>
From: Anders Magnusson <>
List: tech-kern
Date: 09/17/2007 09:28:11
On the parts that aren't gcc-specific it should be possible, yes, but I 
haven't tried it.

-- Ragge

Christoph Egger wrote:
> Is it possible to use gcc's testsuite on PCC ?
> Christoph
> On Saturday 15 September 2007 12:08:42 Anders Magnusson wrote:
>> Alistair Crooks wrote:
>>> On Fri, Sep 14, 2007 at 04:36:30PM +0200, Anders Magnusson wrote:
>>>> Hm, I realized that there were more people interested in this compiler,
>>>> so I'll send
>>>> a mail about it on these lists also.  I have setup a mailing list about
>>>> pcc, join it by:
>>>> _echo "subscribe pcc-list" | Mail majordomo@ludd.ltu.se_
>>>> or similar.  There is also an embryo to a web page about pcc;
>>>> which contains some basic information.
>>>> I have (as some people may know) been hacking on pcc for fun for some
>>>> years.
>>>> After having that project on the shelf for a year or so, I decided to
>>>> make the compiler
>>>> at least compile the NetBSD source tree again.
>>>> It is not yet bug-free, but it can compile the i386 userspace.  The big
>>>> benefit of it
>>>> (apart from that it's BSD licensed, for license geeks :-) is that it is
>>>> fast, 5-10 times
>>>> faster than gcc, while still producing reasonable code.  The only
>>>> optimization added
>>>> so far is a multiple-register-class graph-coloring register allocator,
>>>> which may be
>>>> one of the best register allocators today.  Conversion to SSA format is
>>>> also implemented,
>>>> but not yet the phi function.  Not too difficult though, after that
>>>> strength reduction is
>>>> high on the list.
>>> Thanks, ragge.
>>> I've added this to pkgsrc/lang/pcc - all further contributions welcome.
>>> FYI, there was great interest expressed in pcc by all of the BSD projects
>>> here at EuroBSDcon 2007, since a BSD-licensed compiler is high on the
>>> list of priorities for us.
>>> Thanks once again for doing this - it's really, really neat.
>> Whee, cool!  As I just wrote on the pcc web page, I have the
>> accompanying tools
>> also (as/ld/dbx/...) available, and I think it would be quick to make
>> them useable.
>> -- Ragge