From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Egger <degger@fhm.edu>
To: Nick Ing-Simmons <nick.ing-simmons@elixent.com>
Cc: GCC Developer Mailinglist <gcc@gcc.gnu.org>
Subject: Re: Faster compilation speed
Date: Mon, 19 Aug 2002 09:20:00 -0000
Message-id: <1029770475.7671.5.camel@sonja.de.interearth.com>
References: <20020813194859.9F604F2D6D@nile.gnat.com> <C047A4A2-AFA9-11D6-B3C0-003065C86F94@apple.com> <20020814.104244.64882664.davem@redhat.com> <20020819121527.1337.18@bactrian.elixent.com>
X-SW-Source: 2002-08/msg01104.html

Am Mon, 2002-08-19 um 14.15 schrieb Nick Ing-Simmons:

> Yet another speed/space trade-off - most architecures are going to take
> significantly longer to inc/dec a bitfield than they will doing 
> an int. 

However a few (after all the overhead is not really much) extra
instructions are nothing compared to a cachemiss or even vm measures.
And bitfields can help dramatically to shrink object size especially
for a pile of boolean states and alike.
 
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