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Re: [rtl-optimization] Improve Data Prefetch for IA-64
- From: Canqun Yang <canqun at nudt dot edu dot cn>
- To: Steven Bosscher <stevenb at suse dot de>
- Cc: Canqun Yang <canqun at nudt dot edu dot cn>,Gerald Pfeifer <Gerald at pfeifer dot com>,James E Wilson <Wilson at specifixinc dot com>, gcc-patches at gcc dot gnu dot org,gcc at gcc dot gnu dot org
- Date: Tue, 5 Apr 2005 17:47:04 +0800 (HKT)
- Subject: Re: [rtl-optimization] Improve Data Prefetch for IA-64
- References: <20050405072404.E77AF5B599@ds20.nudt.edu.cn> <200504050949.28039.stevenb@suse.de>
- Reply-to: Canqun Yang <canqun at nudt dot edu dot cn>
Steven Bosscher <stevenb@suse.de>:
>
> What happens if you use the memory address unrolling
patch, turn on
> -fweb, and set the unrolling parameters properly?
>
The memory address unrolling patch can't work on IA-
64, and the -fweb can improve the unroller, but still
far away from the old one. So, I plan to port my work
on new loop optimizer after Zdenek has commited his
patches.
>
> Gr.
> Steven
>
>
Canqun Yang
Creative Compiler Research Group.
National University of Defense Technology, China.