Re: Predict register usage

andreybokhanko@gmail.com
Fri, 2 May 2008 00:35:46 -0700 (PDT)

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Re: Predict register usage SidTouati@inria.fr (Sid Touati) (2008-04-28)
Re: Predict register usage andreybokhanko@gmail.com (2008-05-02)
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From: andreybokhanko@gmail.com
Newsgroups: comp.compilers
Date: Fri, 2 May 2008 00:35:46 -0700 (PDT)
Organization: Compilers Central
References: 08-04-093 08-04-097
Keywords: registers, optimize
Posted-Date: 03 May 2008 17:44:36 EDT

On Apr 26, 7:36 am, Chris F Clark <c...@shell01.TheWorld.com> wrote:
> The one calling (register based) convention that I'm aware of where
> you might not need spill code by doing a call, is if the architecture
> supports a rotating register window. In that case, the hardware
> itself will take care of the spills.


And even then spills are not for free. Sure, they are more effective
if done en masse, but still very costly.


Andrey


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