INCA: Inline Caching meets Quickening in Python 3.3

cgen/templates/FastPyFunctionDoCallDerivative

+<%namespace file="base.impl" import="*"/>\
+
+    TARGET(FAST_PYFUN_DOCALL_${ arity_str(instr) })
+    {
+        if (oparg != ${ instr.arity() }) goto TARGET_CALL_FUNCTION_SKIP_DISPATCH;
+
+        % for operand,accessor in get_enumerated_args(instr.arity()):
+        ${operand}= ${accessor}();
+        % endfor
+
+        /* guard against inline cache misses */
+        if (PyMethod_Check(v) && PyMethod_GET_SELF(v) != NULL) {
+            ${ dbg_inf_ic_miss(instr) }
+            goto TARGET_CALL_FUNCTION_SKIP_DISPATCH;
+        } // if
+        if (PyFunction_Check(v) || PyCFunction_Check(v)) {
+            ${ dbg_inf_ic_miss(instr) }
+            goto TARGET_CALL_FUNCTION_SKIP_DISPATCH;
+        } // if
+        register ternaryfunc call= v->ob_type->tp_call;
+        if (call == NULL)
+            goto TARGET_CALL_FUNCTION_SKIP_DISPATCH;
+
+        % if instr.arity() > 0:
+        STACKADJ(-${ instr.arity() });
+        % endif
+        ${ dbg_inf_ic_hit(instr) }
+
+        register PyObject *args= PyTuple_New( ${ instr.arity() } );
+<% ## pass arguments...
+   i= 0
+   revargs= get_enumerated_args(instr.arity())
+   revargs.reverse()
+%>\
+        % for operand, accessor in revargs:
+          % if operand != 'v':
+        PyTuple_SET_ITEM(args, ${i}, ${operand});
+            <% i+= 1 %>\
+          % endif
+        % endfor
+
+        if (Py_EnterRecursiveCall(" while calling a Python object")) {
+            x= NULL;
+            SET_TOP(x);
+            break;
+        } // if
+
+        x= (*call)(v, args, NULL);
+
+        Py_LeaveRecursiveCall();
+
+        if (x == NULL && !PyErr_Occurred())
+            PyErr_SetString(PyExc_SystemError, "NULL result without error in PyObject_Call");
+
+        ## use recursive freeing of tuple container to eliminate
+        ## the reference counts increased by the argument loading
+        ## instructions...
+        Py_XDECREF( args );
+
+        ## explicit freeing of the code object is necessary...
+        Py_DECREF(v);
+
+        ## stack management and dispatch...
+        ${ push_result() }
+        ${ dispatch() }
+    }
+
+