[LLVMdev] Using isa with derived types

[Zappel-Phillip]

I believe I failed to ask the question properly, I am not trying to determine
whether the elements of an array are scalar type. Instead, I want to be able
to iterate over the function's parameters and determine whether a pointer
argument is actually an array being passed which contains scalar values, or
simply a pointer with a single scalar value. In other words, I want to
ignore functions that accept arrays as arguments.



Nick Lewycky wrote:
> 
> Please see the doxygen: http://llvm.org/doxygen/classllvm_1_1Type.html
> 
>    if (const PointerType *PTy = dyn_cast<PointerType>(...)) {
>      const Type *InnerTy = PTy->getElementType();
>      switch (InnerTy->getTypeID()) {
>        case Type::ArrayTyID:
>          ...
>        case Type::FunctionTyID:
>          ...
>        case Type::StructTyID:
>          ...
>        case Type::IntegerTyID:
>          ...
>      }
>    }
> 
> 

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