llvm dev - Jul 2011 - [LLVMdev] Is it possible to store some info and use it after emitting the bitcode file?

Hi All, 

Specifically, the problem is that I want to insert a string into  the source 
code. When the source code is compiled by the compiler into  bitcode file such 
info will be extracted and stored somewhere else, and  the compiler only 
compiles the original source code. 

An example is like: 
a1.cpp: 
int main() 
{ 
    int a = 0; 
    cout << a << endl; 
} 

I'd like to insert one string 
a2.cpp: 
int main() 
{ 
    CheckSthHere; 
    int a = 0; 
    cout << a << endl; 
} 

I hope to extract such information out a2.cpp and compile only  a1.cpp. After 
compiling a1.cpp into bitcode file I can still get that  string information back
and do some analysis. 


Is this possible? 

Thanks in advance.
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On Jul 13, 2011, at 4:16 PM, kobe James wrote:
> Hi All, 
> 
> Specifically, the problem is that I want to insert a string into the source
code. When the source code is compiled by the compiler into bitcode file such
info will be extracted and stored somewhere else, and the compiler only compiles
the original source code.
> An example is like: 
> a1.cpp: 
> int main() 
> { 
>     int a = 0; 
>     cout << a << endl; 
> } 
> 
> I'd like to insert one string 
> a2.cpp: 
> int main() 
> { 
>     CheckSthHere; 
>     int a = 0; 
>     cout << a << endl; 
> } 
> 
> I hope to extract such information out a2.cpp and compile only a1.cpp.
After compiling a1.cpp into bitcode file I can still get that string information
back and do some analysis.
> 
> Is this possible? 
See if http://llvm.org/docs/LangRef.html#int_annotation helps.
-
Devang

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