[MSDN Library June 1998] /GR (Enable Run-Time Type Information) (100%)
MSDN Library Visual Studio 6.0 > Visual C++ Documentation > Using Visual C++ > Visual C++ Programmer's Guide > Compiling and Linking > Details > Compiler Reference
[MSDN Library September 1992] /Gr (Register Calling Convention) (29.9437260536399%)
Product Documentation > C/C++ 7.0 > Environment and Tools > PART 3 Compiling and Linking > Chapter 13 CL Command Reference > 13.3 CL Options