[LLVMdev] Constructing a varargs CallInst

[Patrick Alexander Simmons]

I'm trying to use CallInst::Create to construct a call to a variadic 
function, and I'm running into the following assertion failure:

/localhome/simmon12/workspace/llvm-sources/lib/VMCore/Instructions.cpp:297: 
void llvm::CallInst::init(llvm::Value*, llvm::Value* const*, unsigned 
int): Assertion `(i >= FTy->getNumParams() || FTy->getParamType(i) == 
Params[i]->getType()) && "Calling a function with a bad signature!"' failed.

I'm using the version of CallInst taking the beginning and end iterators 
of a vector<Value*>.  I made sure to mark the function declaration with 
varargs=true when I created it (the function definition itself is in an 
external library).  Is there anything different or special I need to do 
not to run into this type error?

--Patrick