[Soot-list] how to optimize with soot

[Eric Bodden]

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Szasz Pal wrote:
> Hi!
> 
> I was searching the internet for some java bytecode optimizer
> program, when I found soot. I tried it with the attached (compiled)
> class file using the following command line:  
> 
> $ java -classpath
> jasminclasses-2.2.2.jar:sootclasses-2.2.2.jar:polyglotclasses-1.3.2.jar
> soot.Main -d out -process-dir in -cp
> in:/usr/java/j2sdk1.4.2/jre/lib/rt.jar -O

Inlining is usually something which is not done on the bytecode level but
ratehr by the just in time compiler, because this can decide far better at
runtime what would be efficient to inline. So I am not sure, if there is a
builtin transformation that would allow you to inline the code as you
suggested. Actually I don't think so, because when doing so you may change
the program semantics (some third party may rely on setField(..) getting
called and for instance subclass A to add functionality etc.).

Hope that helps,
Eric

- -- 
Eric Bodden
Chair I2 for Programming Languages and Program Analysis
RWTH Aachen University


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