llvm dev - Aug 2012 - [LLVMdev] what is "Recursive compilation detected" error?

I edit two files named test.h,test.cpp as follow:
///////////////test.h////////////////////////////////////////////////////////////////
class TestClass
{
private:
	int fTotal;
public:
	TestClass();
	~TestClass();
};
///////////test.cpp/////////////////////////////////////////////////////////////////////////////
#include "test.h"

TestClass::TestClass()
{
fTotal = 2;
}

TestClass::~TestClass()
{
fTotal = 3;
}

int main()
{
  TestClass short_name;
  return 0;
}

and I run: clang++ -c test.cpp -emit-llvm -o test.bc
and lli test.bc,
I get follow error:
assert(!isAlreadyCodeGenerating && "Error: Recursive compilation
detected!");
How can I fix it? Thank you.
p.s I try on llvm 2.9/3.0/3.1 and they all get that error, by the way
I compile llvm used VS2010 on win7.