CompileExprTree(interp, nodes, index, litObjvPtr, NULL, NULL, envPtr,
	    0 /* optimize */);
    TclEmitOpcode(INST_DONE, envPtr);
    Tcl_IncrRefCount(byteCodeObj);
    TclInitByteCodeObj(byteCodeObj, envPtr);
    TclFreeCompileEnv(envPtr);
    TclStackFree(interp, envPtr);
    byteCodePtr = byteCodeObj->internalRep.otherValuePtr;
    byteCodePtr = byteCodeObj->internalRep.twoPtrValue.ptr1;
    TclNRExecuteByteCode(interp, byteCodePtr);
    code = TclNRRunCallbacks(interp, TCL_OK, rootPtr);
    Tcl_DecrRefCount(byteCodeObj);
    return code;
}

/*