[LLVMdev] Basic doubt related to Module::iterator

[ambika]

Thanks a lot !!!!

John Criswell wrote:
> ambika wrote:
>> Hi,
>>
>> Yeah I found that it is running LLVM's functions. The functions that 
>> are running are:
>>
>> main
>> llvm.dbg.func.start
>> llvm.dbg.stoppoint
>> scanf
>> llvm.dbg.region.end
>>
>> But I dont want all the functions to be called as I am using 
>> Dominator Trees and whenever I the statement
>>
>>   DominatorTree &DT = getAnalysis<DominatorTree>(F);
>>
>> is encountered by functions other than main, it gives error.
>>
>> What can I do?
>>   
>
> You should first check to see if the function is an external function 
> before calling getAnalysis<DominatorTree>() on it:
>
> if (!(F->isDeclaration())) {
>    DominatorTree & DT = getAnalysis<DominatorTree>(F);
>    ...
> }
>
> -- John T.
>
>>
>> regards,
>> Ambika
>>
>> Trevor Harmon wrote:
>>  
>>> On May 24, 2010, at 12:58 PM, ambika wrote:
>>>
>>>    
>>>> I run this for different files, each having one function each ie 
>>>> main(),
>>>> but for one it loops  twice, and for another it loops thrice.
>>>> for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I)
>>>>       
>>> It might be iterating over the LLVM intrinsic functions as well as 
>>> the user-defined functions. Try printing out the function names on 
>>> each iteration and see what you get.
>>>
>>> Trevor
>>>
>>>     
>>
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>