From: kenner@vlsi1.ultra.nyu.edu (Richard Kenner)
To: ebotcazou@libertysurf.fr
Cc: gcc-patches@gcc.gnu.org, gcc@gcc.gnu.org
Subject: Re: GCC Status Report (2004-03-09)
Date: Fri, 19 Mar 2004 20:08:00 -0000 [thread overview]
Message-ID: <10403191844.AA26648@vlsi1.ultra.nyu.edu> (raw)
Before I start thinking about a replacement, I'd like to understand
what I'll be trying the replace. It appears that no-bo-dy can tell
what is the purpose of RTX_UNCHANGING_P.
Well I can tell you the *purpose*, but if you want the *definition*, that's
something else entirely.
The original idea was to separate objects that we knew could not be
modified by stores, like constant pool objects.
Then, at some later point, it was realized that we could also optimize by
allowing a *single* store to "constant" object to initialize it, but things
started rapidly going downhill once we started to take more and more
advantage of that property.
next reply other threads:[~2004-03-19 18:41 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-19 20:08 Richard Kenner [this message]
-- strict thread matches above, loose matches on Subject: below --
2004-03-19 14:22 Richard Kenner
2004-03-19 6:34 Richard Kenner
2004-03-19 12:18 ` Jakub Jelinek
2004-03-11 12:49 Richard Kenner
2004-03-11 14:09 ` Eric Botcazou
2004-03-11 12:15 Richard Kenner
2004-03-11 12:39 ` Eric Botcazou
2004-03-09 18:09 Mark Mitchell
2004-03-11 9:45 ` Eric Botcazou
2004-03-11 12:48 ` Jakub Jelinek
2004-03-11 21:11 ` Richard Henderson
2004-03-16 16:53 ` Mark Mitchell
2004-03-16 16:59 ` Paul Koning
2004-03-16 17:11 ` Ian Lance Taylor
2004-03-16 17:24 ` Zack Weinberg
2004-03-16 17:25 ` Paul Koning
2004-03-17 10:56 ` Eric Botcazou
2004-03-17 11:49 ` Eric Botcazou
2004-03-17 15:55 ` Mark Mitchell
2004-03-18 8:25 ` Eric Botcazou
2004-03-18 18:31 ` Eric Botcazou
2004-03-18 19:15 ` Mark Mitchell
2004-03-18 23:36 ` Eric Botcazou
2004-03-18 23:41 ` Jakub Jelinek
2004-03-19 1:23 ` Eric Botcazou
2004-03-19 14:31 ` Eric Botcazou
2004-03-19 19:29 ` Mark Mitchell
2004-03-19 20:04 ` Eric Botcazou
2004-03-19 20:23 ` Mark Mitchell
2004-03-20 19:51 ` Eric Botcazou
[not found] ` <405A3F26.2050100@codesourcery.com>
[not found] ` <200403190155.18981.ebotcazou@libertysurf.fr>
2004-03-19 6:42 ` Mark Mitchell
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