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

[John Davidorff Pell]

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. :-)

JP

P.S. Why does the list set the reply-to header, isn't that supposed  
to be a Bad Thing™?


On 29 Mar 2006, at 01:59, Thiemo Seufer wrote:

> On Tue, Mar 28, 2006 at 08:26:27PM -0800, John Davidorff Pell wrote:
> > Out of curiosity, wouldn't it be better to specifically request that
> > feature of gcc, with one of its myriad options, rather than forcing a
> > rather large optimization sweep? I'm sure that -O2 is good generally,
> > but using it as a kludge to get at one of the many things that it
> > enables seems like a not-so-great-idea. Its like buying a restaurant
> > so that you can get a chef's stove.
>
> Well, I went through the ppc disassembly and found no reason to
> disable -O2. Note that it was the default before, I only noticed
> the breakage when I lowered the global optimisation to -O0 for better
> debugging.
>
>
> Thiemo
>
>
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