llvm dev - Apr 2011 - [LLVMdev] [Fwd: Re: [Fwd: Regarding alias analysis pass]]

---------------------------- Original Message ----------------------------
Subject: [Fwd: Re: [Fwd: Regarding alias analysis pass]]
From:    netra at cse.iitb.ac.in
Date:    Sat, April 16, 2011 8:38 am
To:
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Hi,
Actually i wanted to study the kind of aliases recognized by basicaa pass.
aa-eval only gives the # of aliases recognized.
I wanted to print the alias pairs too.
So,i tried modifying basic-aa for this by inserting some errs()
statements.
However the changes did not get reflected.

To see where exactly im going wrong,i just added only a simple
errs() << "hello";
statement inside runOnFunction of basicaa pass.

Susequently i did
 make
 followed by
 make install
 in the llvm-obj/lib/Analysis directory.

 but while using opt this hello was not printed.

 I replicated the code of aa-eval as a dynamic plugin(shared object .so
 instead of .a,(similar to hello pass),
modified the source(alias...evaluator.cpp) and included a errs() <<
"hello"; in it.
 and then the "hello" stmt got printed.


 This is the reason i asked about how to make changes to the source of
 llvm.

 KIndly let me know where im going wrong.

 Regards,
 Netra

>>
>> Hi,
>> I wanted to make a critical evaluation of the kind of aliases
recognized
>> by basicaa (Basic Alias Analysis Pass).
>> aa-eval pass just gives the number of aliases discovered but not the
>> actual variables aliased.
>> i tried adding some print statements to BasicAliasAnalysis.cpp to get
>> the
>> above effect.
>> However,my changes are not being reflected in the output.I did make and
>> make install. But even after,the output remained unchanged.
>>
>> Kindly help me on this.
>> Kindly tell me how to make changes to the source files.
>>
>> Regards,
>> Netra
>>
>>
>> Regards,
>> Netra
>>


Regards,
Netra


Regards,
Netra