Subject: Re: Compiler timings on varous MVII NetBSDs etc.
To: Matt Thomas <firstname.lastname@example.org>
From: Lord Isildur <email@example.com>
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.