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Re: [Qemu-devel] [PATCH] Add gcc 4.0 support

From: Paul Brook
Subject: Re: [Qemu-devel] [PATCH] Add gcc 4.0 support
Date: Wed, 29 Mar 2006 20:33:52 +0100
User-agent: KMail/1.9.1

On Wednesday 29 March 2006 18:03, John Davidorff Pell wrote:
> I was just thinking that by enabling the required feature
> individually, someone else could choose -O0 and not have to
> investigate why it fails. Its not like its a big deal, though. :-)

Like most things dyngen relies on this isn't a feature as such. There's no gcc 
option that says "make sure this function doesn't have a stack frame".
It just happens that at with optimisation turned on this is generally true.

Also, the gcc -O2 option is more than the sum of the other options it enables.


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