RE: [arm-gnu] arm-2008q3 Vectorizing support
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: [arm-gnu] arm-2008q3 Vectorizing support



Is this issue fixed in the latest version ' http://www.codesourcery.com/gnu_toolchains/arm'

It says 'Better NEON vectorization! '

I tried but still don't see the correct assembly getting generated.
Regards,
Santosh Shilimkar
 

> -----Original Message-----
> From: Daniel Jacobowitz [mailto:dan@xxxxxxxxxxxxxxxx] 
> Sent: Tuesday, November 18, 2008 8:04 PM
> To: Shilimkar, Santosh
> Cc: arm-gnu@xxxxxxxxxxxxxxxx
> Subject: Re: [arm-gnu] arm-2008q3 Vectorizing support
> 
> On Tue, Nov 18, 2008 at 07:43:29PM +0530, Shilimkar, Santosh wrote:
> > 
> > > -----Original Message-----
> > > From: Daniel Jacobowitz [mailto:dan@xxxxxxxxxxxxxxxx] 
> > > Sent: Tuesday, November 18, 2008 7:41 PM
> > > To: Shilimkar, Santosh
> > > Cc: arm-gnu@xxxxxxxxxxxxxxxx
> > > Subject: Re: [arm-gnu] arm-2008q3 Vectorizing support
> > > 
> > > On Tue, Nov 18, 2008 at 07:38:26PM +0530, Shilimkar, 
> Santosh wrote:
> > > > I tried with -O2 and -O3 as well. Didn't help.
> > > 
> > > Please attach the code, if you can.
> > 
> > Code attached.
> 
> Thanks.  I've opened an internal issue for this; there's something
> about this test case that confuses GCC's vectorizer :-(  We'll get it
> fixed.  I see that GCC can vectorize the inner loop if we use int
> instead of short.
> 
> -- 
> Daniel Jacobowitz
> CodeSourcery
> 
>