[Soot-list] How to disable soot optimizations

[Delphine]

Hi,

Thank you both for your quick answers. I'm working on a compiler and  
we have some bad performances when we use the classfiles generated by  
SOOT. I guess some of the transformations it does aren't well handled,  
that's why I wanted to disable all transformations. It makes it  
difficult for us to notice the real benefits of the NullPointer and  
ArrayBound optimization.
I understand better what SOOT does now.

Thanks again,

Delphine


Le 19 juil. 10 à 17:31, Eric Bodden a écrit :

>
> Hi Delphine.
>
> -p jb off will turn of the creation of Jimple bodies. That's the most
> essential phase of Soot and cannot really be disabled.
>
> Even when you disable all optimizations, you will still get class
> files that have changes opposed to the original class files. That is
> because Soot transforms everything to Jimple and then back to
> bytecode.
>
> The question to ask whether these changes matter to you. Normally they
> should not matter.
>
> Eric
>
> --
> Dr. Eric Bodden
> Software Technology Group, Technische Universität Darmstadt, Germany
> Tel: +49 6151 16-5478    Fax: +49 6151 16-5410
> Mailing Address: S2|02 A209, Hochschulstraße 10, 64289 Darmstadt
>
>
>
> On 19 July 2010 16:28, ladiode <ladiode at laposte.net> wrote:
>>
>> Hi,
>>
>> I'm new to Soot, and I'd like to use it as an annotation tool (to  
>> optimize null checks and
>> arrayBound checks).
>> It does works pretty well but I noticed some changes in my  
>> classfile, while I'd like to
>> keep it unchanged. Some unused variables have been removed and some  
>> "load/store" have been
>> replaced by a "dup". I tried to deactivate some optimizations using  
>> "-p" but it still
>> didn't change anything (I couldn't deactivate everything though, a  
>> "-p jb off" doesn't work
>> for instance, is that normal?).
>> Did I miss something?
>>
>> Thank you in advance!
>>
>> Delphine
>>
>>
>> Une messagerie gratuite, garantie à vie et des services en plus, ça  
>> vous tente ?
>> Je crée ma boîte mail www.laposte.net
>>
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>