From: Laurynas Biveinis <laurynas.biveinis@gmail.com>
To: Steven Bosscher <stevenb.gcc@gmail.com>
Cc: Bernd Schmidt <bernds@codesourcery.com>,
Eric Botcazou <ebotcazou@adacore.com>,
Richard Guenther <richard.guenther@gmail.com>,
gcc-patches@gcc.gnu.org
Subject: Re: Combine four insns
Date: Tue, 10 Aug 2010 02:51:00 -0000 [thread overview]
Message-ID: <AANLkTi=GntZXaBYXa-ngONtpU4JxYXKoNw5FQpNDLGha@mail.gmail.com> (raw)
In-Reply-To: <AANLkTin_xnL-j6gcUfL6gPeF6ei4TYnRwtL0uscSZhE3@mail.gmail.com>
2010/8/9 Steven Bosscher <stevenb.gcc@gmail.com>:
> This is interesting. Years ago (7 years?) Zack Weinberg suggested that
> GCC should move RTL back onto obstacks. The overhead should be
> relatively small compared to keeping entire functions-as-trees in
> memory. This is even more true today, now we keep entire translation
> units (and more) in memory as GIMPLE (with SSA). Memory spent on RTL
> is marginal compared to that.
>
> I passes this idea to Laurynas last year ago
> (http://gcc.gnu.org/ml/gcc/2009-08/msg00386.html). I don't know if he
> played with the idea or not.
IMHO it's a very good idea and now it is on the top of my GCC TODO
list. Don't know when I'll get around doing this (busy in the final
months of the grad school), or if somebody won't beat me to it.
Anyway, I also made a note of this patch :)
--
Laurynas
next prev parent reply other threads:[~2010-08-10 2:50 UTC|newest]
Thread overview: 129+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-06 14:49 Bernd Schmidt
2010-08-06 15:04 ` Richard Guenther
2010-08-06 20:08 ` Bernd Schmidt
2010-08-06 20:37 ` Richard Guenther
2010-08-06 21:53 ` Jeff Law
2010-08-06 22:41 ` Bernd Schmidt
2010-08-06 23:47 ` Richard Guenther
2010-08-07 8:11 ` Eric Botcazou
2010-08-09 12:29 ` Bernd Schmidt
2010-08-09 12:39 ` Steven Bosscher
2010-08-09 13:48 ` Bernd Schmidt
2010-08-10 2:51 ` Laurynas Biveinis [this message]
2010-08-09 12:41 ` Michael Matz
2010-08-09 14:34 ` Bernd Schmidt
2010-08-09 14:39 ` Toon Moene
2010-08-09 14:50 ` Steven Bosscher
2010-08-09 14:58 ` The speed of the compiler, was: " Toon Moene
2010-08-09 15:00 ` Paul Koning
2010-08-09 15:33 ` Diego Novillo
2010-08-09 15:53 ` Mark Mitchell
2010-08-09 17:15 ` Toon Moene
2010-08-09 17:19 ` Diego Novillo
2010-08-09 17:29 ` Toon Moene
2010-08-09 23:24 ` Chris Lattner
2010-08-10 13:02 ` Toon Moene
2010-08-10 15:36 ` Chris Lattner
2010-08-10 14:58 ` Andi Kleen
2010-08-10 15:03 ` Richard Guenther
2010-08-10 15:32 ` Andi Kleen
2010-08-10 20:09 ` Tom Tromey
2010-08-10 20:23 ` Andi Kleen
2010-08-10 22:40 ` Mike Stump
2010-08-10 23:16 ` Tom Tromey
2010-08-12 21:09 ` Nathan Froyd
2010-08-17 15:14 ` Mark Mitchell
2010-08-10 20:15 ` H.J. Lu
2010-08-12 21:38 ` Vectorized _cpp_clean_line Richard Henderson
2010-08-12 22:18 ` Andi Kleen
2010-08-12 22:32 ` Richard Henderson
2010-08-12 23:10 ` Richard Henderson
2010-08-12 23:13 ` Richard Henderson
2010-08-13 8:33 ` Andi Kleen
2010-08-13 7:26 ` Andi Kleen
2010-08-14 17:14 ` [CFT, v4] " Richard Henderson
2010-08-17 16:59 ` Steve Ellcey
2010-08-17 17:21 ` Richard Henderson
2010-08-17 20:32 ` Steve Ellcey
2010-08-18 17:14 ` Steve Ellcey
2010-08-17 17:32 ` Jakub Jelinek
2010-08-18 3:23 ` Tom Tromey
[not found] ` <1281998097.3725.3.camel@gargoyle>
[not found] ` <4C69C317.2080207@redhat.com>
[not found] ` <1282142212.3725.6.camel@gargoyle>
[not found] ` <4C6BF5F7.7040100@redhat.com>
[not found] ` <1282149264.3725.15.camel@gargoyle>
[not found] ` <4C6C0D92.7080100@redhat.com>
[not found] ` <1282151361.3725.19.camel@gargoyle>
[not found] ` <4C6C166A.90306@redhat.com>
[not found] ` <1282152938.3725.27.camel@gargoyle>
[not found] ` <4C6C39DB.8070409@redhat.com>
2010-08-18 21:50 ` Richard Henderson
2010-08-19 14:12 ` Luis Machado
2010-08-09 17:27 ` The speed of the compiler, was: Re: Combine four insns Joseph S. Myers
2010-08-09 18:23 ` Diego Novillo
2010-08-10 6:20 ` Chiheng Xu
2010-08-10 7:22 ` Chiheng Xu
2010-08-09 17:34 ` Steven Bosscher
2010-08-09 17:36 ` Diego Novillo
2010-08-09 23:13 ` Cary Coutant
2010-08-09 18:59 ` The speed of the compiler Ralf Wildenhues
2010-08-09 19:04 ` Diego Novillo
2010-08-09 21:12 ` The speed of the compiler, was: Re: Combine four insns Mike Stump
2010-08-09 23:48 ` Cary Coutant
2010-08-10 14:37 ` Bernd Schmidt
2010-08-10 14:40 ` Richard Guenther
2010-08-10 14:49 ` Bernd Schmidt
2010-08-10 15:06 ` Steven Bosscher
2010-08-10 15:06 ` Steven Bosscher
2010-08-10 16:27 ` Andi Kleen
2010-08-10 16:47 ` Steven Bosscher
2010-08-10 16:55 ` Andi Kleen
2010-08-10 17:03 ` David Daney
2010-08-11 8:53 ` Richard Guenther
2010-08-16 20:42 ` Mark Mitchell
2010-08-16 20:45 ` Bernd Schmidt
2010-08-16 21:03 ` Mark Mitchell
2010-08-18 20:50 ` Eric Botcazou
2010-08-18 22:03 ` Bernd Schmidt
2010-08-19 8:04 ` Eric Botcazou
2010-08-19 15:44 ` Mark Mitchell
2010-08-19 18:13 ` Bernd Schmidt
2010-08-19 18:25 ` Mark Mitchell
2010-08-19 18:42 ` Richard Henderson
2010-08-19 22:14 ` Eric Botcazou
2010-08-19 22:19 ` Bernd Schmidt
2010-08-19 22:21 ` Eric Botcazou
2010-08-19 22:37 ` Bernd Schmidt
2010-08-19 22:53 ` Steven Bosscher
2010-08-19 23:34 ` Andrew Pinski
2010-08-19 23:40 ` Bernd Schmidt
2010-08-20 1:59 ` Mark Mitchell
2010-08-20 3:56 ` Diego Novillo
2010-08-20 4:13 ` Mark Mitchell
2010-08-20 14:14 ` Eric Botcazou
2010-08-20 14:36 ` Paolo Bonzini
2010-08-21 13:46 ` Eric Botcazou
2010-08-23 17:03 ` Richard Guenther
2010-08-23 17:08 ` Mark Mitchell
2010-08-20 14:44 ` Mark Mitchell
2010-08-20 10:21 ` Paolo Bonzini
2010-08-20 0:21 ` H.J. Lu
2010-08-20 0:36 ` Bernd Schmidt
2010-08-20 14:07 ` H.J. Lu
2010-08-11 12:32 ` Michael Matz
2010-08-06 15:08 ` Steven Bosscher
2010-08-06 16:45 ` Paolo Bonzini
2010-08-06 17:22 ` Steven Bosscher
2010-08-06 18:02 ` Jeff Law
2010-08-06 20:44 ` Steven Bosscher
2010-08-06 20:48 ` Richard Guenther
2010-08-06 21:49 ` Jeff Law
2010-08-06 18:56 ` Vladimir N. Makarov
2010-08-06 19:02 ` Steven Bosscher
2010-08-06 21:11 ` Chris Lattner
2010-08-08 11:40 ` Paolo Bonzini
2010-08-12 5:53 ` Ian Lance Taylor
2010-08-06 19:20 ` Bernd Schmidt
2010-08-06 19:37 ` Jeff Law
2010-08-06 19:43 ` Bernd Schmidt
2010-08-06 21:46 ` Jeff Law
2010-08-09 14:54 ` Mark Mitchell
2010-08-09 15:04 ` Bernd Schmidt
2010-08-09 16:02 ` Chris Lattner
2010-08-09 16:07 ` Richard Guenther
2010-08-09 17:28 ` Joseph S. Myers
2010-08-09 16:19 ` Mark Mitchell
2010-08-09 17:02 ` Chris Lattner
2010-08-10 2:50 ` Mark Mitchell
2010-08-10 15:35 ` Chris Lattner
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