04, 2012 6:26 PM
To: Kumar, Venkataramanan
Cc: Richard Guenther; gcc-patches@gcc.gnu.org
Subject: Re: [Patch] Fix PR53397
On Tue, Oct 2, 2012 at 6:40 PM, Kumar, Venkataramanan
venkataramanan.ku...@amd.com wrote:
Hi Richi,
(Snip)
+ (!cst_and_fits_in_hwi (step))
+{
+ if( loop-inner
.
Ok.
Thanks,
Richard.
Regards,
Venkat.
-Original Message-
From: Richard Guenther [mailto:richard.guent...@gmail.com]
Sent: Thursday, October 04, 2012 6:26 PM
To: Kumar, Venkataramanan
Cc: Richard Guenther; gcc-patches@gcc.gnu.org
Subject: Re: [Patch] Fix PR53397
On Tue, Oct 2
, 2012 5:42 PM
To: Kumar, Venkataramanan
Cc: gcc-patches@gcc.gnu.org
Subject: Re: [Patch] Fix PR53397
On Mon, 1 Oct 2012, venkataramanan.ku...@amd.com wrote:
Hi,
The below patch fixes the FFT/Scimark regression caused by useless
prefetch generation.
This fix tries to make prefetch less
On Mon, 1 Oct 2012, venkataramanan.ku...@amd.com wrote:
Hi,
The below patch fixes the FFT/Scimark regression caused by useless prefetch
generation.
This fix tries to make prefetch less aggressive by prefetching arrays in the
inner loop, when the step is invariant in the entire loop
,
Venkat.
-Original Message-
From: Richard Guenther [mailto:rguent...@suse.de]
Sent: Tuesday, October 02, 2012 5:42 PM
To: Kumar, Venkataramanan
Cc: gcc-patches@gcc.gnu.org
Subject: Re: [Patch] Fix PR53397
On Mon, 1 Oct 2012, venkataramanan.ku...@amd.com wrote:
Hi,
The below patch
Hi,
The below patch fixes the FFT/Scimark regression caused by useless prefetch
generation.
This fix tries to make prefetch less aggressive by prefetching arrays in the
inner loop, when the step is invariant in the entire loop nest.
GCC currently tries to prefetch invariant steps when they are
