Subject: Re: Compiler timings on varous MVII NetBSDs etc.
To: Matt Thomas <>
From: Lord Isildur <>
List: port-vax
Date: 01/23/2001 14:19:35
pcc also generates fast code. faster than gcc on vax at any rate.. i 
should do a more involved comparison than the little shootout between gcc 
and pcc and ultrix/vax cc that ragge and i did.. though we had machines 
of somewhat different characteristics, but pcc2's code was at least as 
fast as gcc's best optimization. 

On Tue, 23 Jan 2001, Matt Thomas wrote:

> At 01:32 PM 1/23/2001 -0500, Thor Lancelot Simon wrote:
> >pcc is a *terrible* compiler.  If we shipped pcc instead of gcc (not that
> >we can, due to licensing; SCO owns the code) you'd be complaining about

 pcc was in net2 though, wasnt it? it's not encumbered code. 

> I can answer that.  I've been working on GCC's code generation for VAX as
> part of the ELF work.  I've been reducing the number of instruction by
> about 4-8% and the code size by the same.  I've been adding optimizations
> and peepholes to speedup and reduce code size.  In -current, I've tweaked
> vax/include/macros.h to make many of the inlines more efficient.