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From: "rguenther at suse dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/49006] [4.6/4.7 Regression] Missed vectorization due to revision 167531
Date: Tue, 02 Aug 2011 08:38:00 -0000 [thread overview]
Message-ID: <bug-49006-4-bkWKNIjxM5@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-49006-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49006
--- Comment #8 from rguenther at suse dot de <rguenther at suse dot de> 2011-08-02 08:37:28 UTC ---
On Mon, 1 Aug 2011, irar at il dot ibm.com wrote:
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49006
>
> --- Comment #7 from Ira Rosen <irar at il dot ibm.com> 2011-08-01 14:47:08 UTC ---
> I think that this is not really a missed-optimization. It's just that some
> loops disappear because of the unrolling.
Ah, ok - so SLP vectorization won't print a "vectorized loop X" if it
would vectorize the unrolled variant? (not sure if it easily could)
next prev parent reply other threads:[~2011-08-02 8:38 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-15 18:45 [Bug tree-optimization/49006] New: " dominiq at lps dot ens.fr
2011-05-16 9:30 ` [Bug tree-optimization/49006] " rguenther at suse dot de
2011-05-16 10:29 ` dominiq at lps dot ens.fr
2011-05-16 10:50 ` rguenther at suse dot de
2011-05-16 11:39 ` rguenth at gcc dot gnu.org
2011-05-19 12:53 ` irar at il dot ibm.com
2011-05-22 12:46 ` dominiq at lps dot ens.fr
2011-06-27 15:36 ` jakub at gcc dot gnu.org
2011-08-01 14:45 ` rguenth at gcc dot gnu.org
2011-08-01 14:50 ` irar at il dot ibm.com
2011-08-02 8:38 ` rguenther at suse dot de [this message]
2011-08-02 9:21 ` irar at il dot ibm.com
2011-08-02 9:25 ` rguenther at suse dot de
2011-09-16 16:19 ` dominiq at lps dot ens.fr
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