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From: "hjl dot tools at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/44382] Slow integer multiply
Date: Fri, 04 Jun 2010 13:57:00 -0000 [thread overview]
Message-ID: <20100604135625.15072.qmail@sourceware.org> (raw)
In-Reply-To: <bug-44382-682@http.gcc.gnu.org/bugzilla/>
------- Comment #4 from hjl dot tools at gmail dot com 2010-06-04 13:56 -------
(In reply to comment #3)
> Yes, reassoc linearizes instead of building a tree (saves one (or was it two?)
> registers at best).
>
Should we always build a tree? It may increase register pressure.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44382
next prev parent reply other threads:[~2010-06-04 13:57 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-02 15:04 [Bug middle-end/44382] New: " hjl dot tools at gmail dot com
2010-06-02 15:15 ` [Bug middle-end/44382] " rguenth at gcc dot gnu dot org
2010-06-04 13:08 ` hjl dot tools at gmail dot com
2010-06-04 13:21 ` rguenth at gcc dot gnu dot org
2010-06-04 13:57 ` hjl dot tools at gmail dot com [this message]
2010-06-04 14:40 ` hjl dot tools at gmail dot com
2010-09-15 4:29 ` hjl dot tools at gmail dot com
[not found] <bug-44382-4@http.gcc.gnu.org/bugzilla/>
2011-07-12 17:34 ` wschmidt at gcc dot gnu.org
2011-09-06 16:54 ` hjl at gcc dot gnu.org
2011-10-13 17:30 ` wschmidt at gcc dot gnu.org
2011-10-21 14:42 ` wschmidt at gcc dot gnu.org
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