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From: "dberlin at dberlin dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/26944] [4.1/4.2 Regression] -ftree-ch generates worse code
Date: Fri, 31 Mar 2006 22:41:00 -0000 [thread overview]
Message-ID: <20060331224110.28540.qmail@sourceware.org> (raw)
In-Reply-To: <bug-26944-1008@http.gcc.gnu.org/bugzilla/>
------- Comment #3 from dberlin at gcc dot gnu dot org 2006-03-31 22:41 -------
Subject: Re: [4.1/4.2 Regression] -ftree-ch
generates worse code
> Compare pretmp.28_49 with pretmp.32_11, why are the arguments in a different
> order? Is there something unstable in the PRE algorithm?
>
No, we just call fold on the expressions we build, and whatever it gives
us, we use :)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26944
next prev parent reply other threads:[~2006-03-31 22:41 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-30 16:15 [Bug tree-optimization/26944] New: " dann at godzilla dot ics dot uci dot edu
2006-03-30 16:25 ` [Bug tree-optimization/26944] [4.1/4.2 Regression] " rguenth at gcc dot gnu dot org
2006-03-30 16:43 ` dann at godzilla dot ics dot uci dot edu
2006-03-31 22:41 ` Daniel Berlin
2006-03-31 22:41 ` dberlin at dberlin dot org [this message]
2006-04-02 8:12 ` pinskia at gcc dot gnu dot org
2006-04-16 19:13 ` mmitchel at gcc dot gnu dot org
2006-05-02 17:38 ` steven at gcc dot gnu dot org
2006-05-03 18:55 ` dann at godzilla dot ics dot uci dot edu
2006-05-03 19:00 ` Andrew Pinski
2006-05-03 19:00 ` pinskia at physics dot uc dot edu
2006-05-03 21:33 ` steven at gcc dot gnu dot org
2006-05-03 21:53 ` dann at godzilla dot ics dot uci dot edu
2006-05-04 21:25 ` pinskia at gcc dot gnu dot org
2006-05-25 2:39 ` mmitchel at gcc dot gnu dot org
2007-02-14 9:10 ` [Bug tree-optimization/26944] [4.1/4.2/4.3 " mmitchel at gcc dot gnu dot org
2007-06-18 5:28 ` [Bug tree-optimization/26944] [4.1/4.2 " pinskia at gcc dot gnu dot org
2008-07-04 20:22 ` [Bug tree-optimization/26944] [4.2 " jsm28 at gcc dot gnu dot org
2009-03-30 15:51 ` jsm28 at gcc dot gnu dot org
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