llvm dev - Feb 2006 - [LLVMdev] dynamic_cast error

Hello,

Following statement from LLVM Programmer's Manual is not compiling.
CallInst* callInst = dyn_cast<CallInst>(&*basic_block_iterator_1);

The gcc version is :
gcc (GCC) 4.0.2 20051125 (Red Hat 4.0.2-8)

===========Error message
===========llvm/include/llvm/Support/Casting.h: In function 'bool
llvm::isa_impl(const From&) [with To = llvm::CallInst, From
llvm::Instruction]':

llvm/include/llvm/Support/Casting.h:69:   instantiated from 'static
bool llvm::isa_impl_wrap<To, const FromTy, const FromTy>::doit(const
FromTy&) [with To = llvm::CallInst, FromTy = llvm::Instruction]'

llvm/include/llvm/Support/Casting.h:81:   instantiated from 'static
bool llvm::isa_impl_cl<FromCl>::isa(const FromCl&) [with ToCl
llvm::CallInst, FromCl = llvm::Instruction]'

llvm/include/llvm/Support/Casting.h:99:   instantiated from 'static
bool llvm::isa_impl_cl<FromCl*>::isa(FromCl*) [with ToCl llvm::CallInst,
FromCl = llvm::Instruction]'

llvm/include/llvm/Support/Casting.h:114:   instantiated from 'bool
llvm::isa(const Y&) [with X = llvm::CallInst, Y = llvm::Instruction*]'

llvm/include/llvm/Support/Casting.h:223:   instantiated from 'typename
llvm::cast_retty<To, From>::ret_type llvm::dyn_cast(Y) [with X
llvm::CallInst, Y = llvm::Instruction*]'

callsite.cc:22:   instantiated from here

llvm/include/llvm/Support/Casting.h:52: error: incomplete type
'llvm::CallInst' used in nested name specifier

=========
Any hints about what the issue could be?

TIA

On Tue, 14 Feb 2006, Pratik Mehta wrote:
> Following statement from LLVM Programmer's Manual is not compiling.
> CallInst* callInst =
dyn_cast<CallInst>(&*basic_block_iterator_1);
>
> callsite.cc:22:   instantiated from here
>
> llvm/include/llvm/Support/Casting.h:52: error: incomplete type
> 'llvm::CallInst' used in nested name specifier
>
> Any hints about what the issue could be?
You need to include llvm/Instructions.h to get the definition of CallInst.

FWIW, this:

  CallInst* callInst = dyn_cast<CallInst>(&*basic_block_iterator_1);

is equivalent to this:

   CallInst* callInst = dyn_cast<CallInst>(basic_block_iterator_1);

if basic_block_iterator_1 is a BasicBlock::iterator.

-Chris

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