INCA: Inline Caching meets Quickening in Python 3.3

cgen/templates/FastGeneratorDerivative

+<%namespace file="base.impl" import="*"/>\
+
+    TARGET(FAST_CALL_GENERATOR_${ arity_str(instr) })
+    {
+        if (oparg != ${ instr.arity() }) goto TARGET_CALL_FUNCTION_SKIP_DISPATCH;
+
+        % for operand,accessor in get_enumerated_args(instr.arity()):
+        ${operand}= ${accessor}();
+        % endfor
+
+        if (! (PyMethod_Check(v) || PyFunction_Check(v))) {
+            goto TARGET_CALL_FUNCTION_SKIP_DISPATCH;
+        } // if
+        register PyCodeObject *co = (PyCodeObject *)PyFunction_GET_CODE(v);
+        if (!co->co_flags & CO_GENERATOR) {
+            goto TARGET_CALL_FUNCTION_SKIP_DISPATCH;
+        } // if
+        PyObject *globals= PyFunction_GET_GLOBALS(v);
+        PyObject *closure= PyFunction_GET_CLOSURE(v);
+        PyThreadState *tstate= PyThreadState_GET();
+        if (globals == NULL || closure == NULL || tstate == NULL)
+            goto TARGET_CALL_FUNCTION_SKIP_DISPATCH;
+
+        % if instr.arity() > 0:
+        STACKADJ(-${ instr.arity() });
+        % endif
+        register PyFrameObject *generator_frame= PyFrame_New(tstate, co, globals, NULL);
+        register PyObject **freevars= generator_frame->f_localsplus + co->co_nlocals;
+<% ## copy argument variables...
+   i= 0
+   revargs= get_enumerated_args(instr.arity())
+   revargs.reverse()
+%>
+        % for operand, accessor in revargs:
+          % if operand != 'v':
+        Py_INCREF( ${operand} );
+        generator_frame->f_localsplus[ ${i} ]= ${ operand };
+            <% i+= 1 %>
+          % endif
+        % endfor
+        ## co->co_freevars indicates how many variables we need to fetch from the
+        ## closue...
+        /* copy closure variables... */
+        u= PyTuple_GET_ITEM(closure, 0);
+        Py_INCREF(u);
+        freevars[0] = u;    /* closure-bound variable */
+
+        /* Don't need to keep the reference to f_back, it will be set
+         * when the generator is resumed. */
+        Py_XDECREF(generator_frame->f_back);
+        generator_frame->f_back = NULL;
+
+        x= PyGen_New(generator_frame);
+
+        % for operand, accessor in get_enumerated_args(instr.arity()):
+        Py_DECREF( ${ operand } );
+        % endfor
+
+        ${ push_result() }
+        ${ dispatch() }
+    }
+
+