fixup and add test

Author: kumaraditya303

Lib/test/test_capi/test_opt.py

@@ -5253,6 +5253,23 @@ def g():
         PYTHON_JIT="1", PYTHON_JIT_STRESS="1")
         self.assertEqual(result[0].rc, 0, result)
 
+    def test_call_kw(self):
+        def func(a):
+            return 42 * a
+
+        def testfunc(n):
+            x = 0
+            for _ in range(n):
+                x += func(a=1)
+            return x
+
+        res, ex = self._run_with_optimizer(testfunc, TIER2_THRESHOLD)
+        self.assertEqual(res, 42 * TIER2_THRESHOLD)
+        self.assertIsNotNone(ex)
+        uops = get_opnames(ex)
+        self.assertIn("_PUSH_FRAME", uops)
+        self.assertIn("_CHECK_FUNCTION_VERSION_KW", uops)
+
     def test_func_version_guarded_on_change(self):
         def testfunc(n):
             for i in range(n):

Python/optimizer_bytecodes.c

@@ -2273,6 +2273,10 @@ dummy_func(void) {
         sym_set_recorded_value(func, (PyObject *)this_instr->operand0);
     }
 
+    op(_RECORD_CALLABLE_KW, (func, self, args[oparg], kwnames -- func, self, args[oparg], kwnames)) {
+        sym_set_recorded_value(func, (PyObject *)this_instr->operand0);
+    }
+
     op(_RECORD_BOUND_METHOD, (callable, self, args[oparg] -- callable, self, args[oparg])) {
         sym_set_recorded_value(callable, (PyObject *)this_instr->operand0);
     }