Module                                  T_LLVM_REF
Type                                    T_LLVM_REF
Value                                   T_LLVM_REF
BasicBlock                              T_LLVM_REF
Builder                                 T_LLVM_REF
PassManager                             T_LLVM_REF
GenericValue                            T_LLVM_REF
ExecutionEngine                         T_LLVM_REF
Target                                  T_LLVM_REF
TargetMachine                           T_LLVM_REF
OUTPUT
T_LLVM_REF
        sv_setref_pv($arg, \"LLVM::${type}\", (void *) $var);
INPUT
T_LLVM_REF
        if (sv_isobject($arg) && sv_derived_from($arg, \"LLVM::${type}\"))
                $var = INT2PTR($type, SvIV((SV *) SvRV($arg)));
        else
                Perl_croak(aTHX_ \"$var is not of type LLVM::${type}\");