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From: "pinskia at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/37795] if-combine doesn't optimize != after >= test
Date: Sun, 12 Oct 2008 20:49:00 -0000 [thread overview]
Message-ID: <20081012204759.11293.qmail@sourceware.org> (raw)
In-Reply-To: <bug-37795-10053@http.gcc.gnu.org/bugzilla/>
------- Comment #5 from pinskia at gmail dot com 2008-10-12 20:47 -------
Subject: Re: if-combine doesn't optimize != after >= test
On Sun, Oct 12, 2008 at 1:40 PM, rguenther at suse dot de
<gcc-bugzilla@gcc.gnu.org> wrote:
> No. ifcombine only combines on the CFG, in PR28685 we are dealing
> with a CFG-less opportunity.
Well it depends really. As on some targets it has a CFG based ||/&&
depending on BRANCH_COST.
Thanks,
Andrew Pinski
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37795
next prev parent reply other threads:[~2008-10-12 20:49 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-10 10:08 [Bug tree-optimization/37795] New: " rguenth at gcc dot gnu dot org
2008-10-10 10:08 ` [Bug tree-optimization/37795] " rguenth at gcc dot gnu dot org
2008-10-12 18:53 ` rguenth at gcc dot gnu dot org
2008-10-12 20:20 ` ubizjak at gmail dot com
2008-10-12 20:41 ` rguenther at suse dot de
2008-10-12 20:47 ` Andrew Pinski
2008-10-12 20:49 ` pinskia at gmail dot com [this message]
2008-10-12 20:52 ` rguenther at suse dot de
2009-03-28 10:02 ` rguenth at gcc dot gnu dot org
2009-03-28 10:03 ` rguenth at gcc dot gnu dot org
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