From: Andrew Pinski <pinskia@gmail.com>
To: Richard Guenther <richard.guenther@gmail.com>
Cc: Ulrich Weigand <uweigand@de.ibm.com>,
Ira Rosen <ira.rosen@linaro.org>,
gcc-patches@gcc.gnu.org, Patch Tracking <patches@linaro.org>
Subject: Re: [patch] Fix PR tree-optimization/49771
Date: Tue, 26 Jul 2011 08:59:00 -0000 [thread overview]
Message-ID: <CA+=Sn1=Mae-W3sqfkutdLXBsBYOytb0ssMuuiTS_Ev-LHLY0Fg@mail.gmail.com> (raw)
In-Reply-To: <CAFiYyc0PmuoxuYVu=H70WSynNA2Rec+FEiGmLnENU7MGjypL2Q@mail.gmail.com>
On Tue, Jul 26, 2011 at 12:23 AM, Richard Guenther
<richard.guenther@gmail.com> wrote:
> Hmm. I suppose we'd need to see at the initial expand stage that the
> move is going to be handled specially. For other strict-align targets
> we end up with store/load-bit-field for unaligned accesses, so I suppose
> SPU doesn't want to go down that path (via insv/extv)?
The problem is that almost all load/stores on spu are unaligned. So
there will be less optimized done on them if we go down that path (it
was tried at least twice and it produced worse code).
Thanks,
Andrew Pinski
next prev parent reply other threads:[~2011-07-26 7:41 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-19 8:24 Ira Rosen
2011-07-19 9:49 ` Richard Guenther
2011-07-19 14:01 ` Ira Rosen
2011-07-19 14:03 ` Richard Guenther
2011-07-20 19:47 ` Ulrich Weigand
2011-07-21 12:54 ` Ira Rosen
2011-07-24 14:32 ` Ira Rosen
2011-07-24 18:46 ` Richard Guenther
2011-07-25 9:44 ` Ulrich Weigand
2011-07-25 10:08 ` Richard Guenther
2011-07-25 11:26 ` Ira Rosen
2011-07-25 11:41 ` Richard Guenther
2011-07-25 12:33 ` Ira Rosen
2011-07-25 13:01 ` Richard Guenther
2011-07-25 13:07 ` Richard Guenther
2011-07-25 13:47 ` Ulrich Weigand
2011-07-25 14:01 ` Richard Guenther
2011-07-25 14:10 ` Richard Guenther
2011-07-25 14:14 ` Richard Guenther
2011-07-25 14:54 ` Ulrich Weigand
2011-07-25 14:59 ` Richard Guenther
2011-07-25 16:12 ` Ulrich Weigand
2011-07-26 8:25 ` Richard Guenther
2011-07-26 8:59 ` Andrew Pinski [this message]
2011-07-26 14:23 ` Ulrich Weigand
2011-07-26 14:25 ` Michael Matz
2011-07-26 16:18 ` Merge alignments from coalesced SSA pointers Michael Matz
2011-07-26 17:23 ` Michael Matz
2011-08-08 16:34 ` Ulrich Weigand
2011-08-09 12:01 ` Michael Matz
2011-08-12 16:41 ` [rfa] Set alignment of pseudos via get_pointer_alignment Michael Matz
2011-08-12 22:53 ` Richard Guenther
2011-08-23 15:04 ` Michael Matz
2011-07-26 17:28 ` Merge alignments from coalesced SSA pointers Ulrich Weigand
2011-07-27 9:13 ` Richard Guenther
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