diff --git a/Include/internal/pycore_long.h b/Include/internal/pycore_long.h
@@ -23,6 +23,7 @@ static inline PyObject* _PyLong_GetOne(void)

PyObject *_PyLong_Add(PyLongObject *left, PyLongObject *right);
PyObject *_PyLong_Multiply(PyLongObject *left, PyLongObject *right);

/* Used by Python/mystrtoul.c, _PyBytes_FromHex(),
   _PyBytes_DecodeEscape(), etc. */

diff --git a/Include/opcode.h b/Include/opcode.h
diff --git a/Lib/opcode.py b/Lib/opcode.py
@@ -231,6 +231,8 @@ def jabs_op(name, op):
    "BINARY_OP_INPLACE_ADD_UNICODE",
    "BINARY_OP_MULTIPLY_INT",
    "BINARY_OP_MULTIPLY_FLOAT",
    "BINARY_SUBSCR_ADAPTIVE",
    "BINARY_SUBSCR_LIST_INT",
    "BINARY_SUBSCR_TUPLE_INT",

@@ -1955,6 +1955,41 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, InterpreterFrame *frame, int thr
            DISPATCH();
        }

        TARGET(BINARY_OP_ADD_UNICODE) {
            PyObject *left = SECOND();
            PyObject *right = TOP();

diff --git a/Python/opcode_targets.h b/Python/opcode_targets.h
diff --git a/Python/specialize.c b/Python/specialize.c
@@ -1420,6 +1420,19 @@ _Py_Specialize_BinaryOp(PyObject *lhs, PyObject *rhs, _Py_CODEUNIT *instr,
                goto success;
            }
            break;
        default:
            // These operators don't have any available specializations. Rather
            // than repeatedly attempting to specialize them, just convert them