From: Per Bothner <per@bothner.com>
To: dewar@gnat.com
Cc: gcc@gcc.gnu.org
Subject: Re: Big-endian Gcc on Intel IA32
Date: Mon, 17 Dec 2001 18:59:00 -0000 [thread overview]
Message-ID: <3C1EB0B5.8070704@bothner.com> (raw)
In-Reply-To: <20011218023348.E7CB2F28BD@nile.gnat.com>
dewar@gnat.com wrote:
> Another candidate would be bit packed arrays. In practice this is a very
> useful feature. Currently the circuitry for bit packing is in the front end
> of the Ada compiler, but it would be nice to move it into the back end so
> that other GNU languages could take advantage of it.
Chill also has/had 'bitstrings' and 'powersets' (i.e. what Pascal calls
'sets'), both of which are basically bit-pached arrays of booleans.
The latter uses the SET_TYPE tree code, and we added some support in
store_constructor and a couple of other places, but mostly we just
generated function calls. Real back-end support would have made it
easier to generate better code.
--
--Per Bothner
per@bothner.com http://www.bothner.com/per/
next prev parent reply other threads:[~2001-12-18 2:59 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-12-17 18:39 dewar
2001-12-17 18:59 ` Per Bothner [this message]
-- strict thread matches above, loose matches on Subject: below --
2001-12-23 7:26 dewar
2001-12-23 7:06 dewar
2001-12-23 7:08 ` Florian Weimer
2001-12-20 5:36 Etienne Lorrain
2001-12-19 11:47 Bernard Dautrevaux
2001-12-19 13:09 ` Linus Torvalds
2001-12-18 11:41 Morten Welinder
2001-12-18 11:42 ` Phil Edwards
2001-12-18 14:48 ` Linus Torvalds
2001-12-18 3:49 dewar
2001-12-23 6:59 ` Florian Weimer
2001-12-17 13:14 dewar
2001-12-17 13:42 ` guerby
2001-12-17 13:43 ` Linus Torvalds
2001-12-17 14:22 ` guerby
2001-12-17 14:52 ` Linus Torvalds
2001-12-17 15:01 ` Richard Henderson
2001-12-17 15:12 ` Linus Torvalds
2001-12-17 15:54 ` Richard Henderson
2001-12-17 17:43 ` Linus Torvalds
2001-12-17 18:12 ` Richard Henderson
2001-12-18 11:55 ` Jason Riedy
2001-12-17 16:43 ` Ross Smith
2001-12-18 1:28 ` Florian Weimer
2001-12-17 12:08 dewar
2001-12-17 13:10 ` Linus Torvalds
2001-12-17 14:00 ` Alan Lehotsky
2001-12-17 12:00 Ghanta, Bose
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