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List:       gcc
Subject:    Re: cache misses in gcc 3.3
From:       Andi Kleen <ak () muc ! de>
Date:       2003-02-10 17:16:57
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On Mon, Feb 10, 2003 at 05:30:25PM +0100, Diego Novillo wrote:
> On Mon, 10 Feb 2003, Andi Kleen wrote:
> 
> > Hopefully CSE can be fixed too - I assume tree-ssa will do that eventually?
> > 
> Well, by having PRE and other cleanups at the tree level, the
> hope is to go into GCSE and rip out all the code that tries to
> deal with cases that can be more easily caught at the tree level.

GCSE doesn't seem to be that slow, just CSE is.

CSE                   :   0.46 (11%) usr   0.00 ( 0%) sys   0.50 (10%) wall
global CSE            :   0.14 ( 3%) usr   0.00 ( 0%) sys   0.15 ( 3%) wall


-Andi
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