[LLVMdev] How To Get The Name of the type the popinter is pointing to

[Vinay M]

amitjai wrote
> i am using llvm ,
> i did this 
> 
>                         if (  AllocaInst *allocInst = dyn_cast
> <AllocaInst>
> (&*bbit)){
>                                 PointerType *p = allocInst->getType();
>                                 if ( p->getElementType()->isPointerTy()){
>                                         StringRef name =
> allocInst->getName();
>                                         Type *type =
> allocInst->getOperand(0)->getType();;
>                                         errs() << type->getName() << "   "
> << name << "\n";
>                                 }
>                         }
> 
> but i am getting the output in the following format
> 
> i32   line
> i32   temp
> i32   p
> i32   filename
> i32   arrays
> i32   label
> i32   fp
> i32   head
> i32   b
> 
> here line is char* ,temp is char* , p is int pointer,fp is file pointer
> ,head is pointer to list node structure and so on
> 
> but why i am getting i32 for all the pointers .
> 
> please help me out.

Hi ,
I am using the following code to get the Type of Pointer  element allocated-

if ( (AllocaInst *AI  = dyn_cast<AllocaInst> (Inst)) ) 
    if ( AI->getType()->getElementType()->isPointerTy() ) 
      errs() <<  "\nType :- " <<  *AI->getType()->getElementType()
                                     <<  "\tName:- " << AI->getName();


"allocInst->getOperand(0)" contains the number of elements of that type  to
be allocated ,  so its type is always i32..
 
   



--
View this message in context: http://llvm.1065342.n5.nabble.com/How-To-Get-The-Name-of-the-type-the-popinter-is-pointing-to-tp49121p49159.html
Sent from the LLVM - Dev mailing list archive at Nabble.com.