Message-ID: <4F3DD30A.6030008@zytor.com>
Date: Thu, 16 Feb 2012 20:09:46 -0800
From: "H. Peter Anvin" <hpa@zytor.com>
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To: Indan Zupancic <indan@nul.nu>
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Subject: Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF
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On 02/16/2012 07:27 PM, Indan Zupancic wrote:
> 
> A JIT won't be able to merge accesses because it also has to merge other
> instructions and recognize when 64-bit operations are done with 32-bit
> instructions. I think that will be too hard for a JIT.
> 

Please Google "peephole optimizer".

	-hpa


-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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