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Re: [patch, PR44297] prefetch improvements to fix 416 regression from non-constant step prefetching
- From: Zdenek Dvorak <rakdver at kam dot mff dot cuni dot cz>
- To: "Fang, Changpeng" <Changpeng dot Fang at amd dot com>
- Cc: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, "sebpop at gmail dot com" <sebpop at gmail dot com>
- Date: Mon, 7 Jun 2010 22:25:43 +0200
- Subject: Re: [patch, PR44297] prefetch improvements to fix 416 regression from non-constant step prefetching
- References: <D4C76825A6780047854A11E93CDE84D02F7720@SAUSEXMBP01.amd.com>
Hi,
> Attached is the patch to limit non-constant step prefetching only to the innermost loops.
> This patch fixes the 5% degradation in 416.gamess caused by non-constant step prefetching.
>
> patch passed bootstrapping and gcc regression tests.
>
> Is it OK for the trunk?
OK,
Zdenek