Merge remote-tracking branch 'upstream/main' into load_consts_inline_…

…borrow_prmoted
Fidget-Spinner · Dec 19, 2025 · Dec 18, 2025 · Dec 18, 2025 · Dec 19, 2025 · Dec 18, 2025
commit 57c6da22f569a4af74753ef5afb5f50b9724cf31
diff --git a/Lib/test/test_capi/test_opt.py b/Lib/test/test_capi/test_opt.py
@@ -3026,6 +3026,24 @@ def testfunc(n):
         """), PYTHON_JIT="1")
         self.assertEqual(result[0].rc, 0, result)
 
+    def test_binary_subscr_list_int(self):
+        def testfunc(n):
+            l = [1]
+            x = 0
+            for _ in range(n):
+                y = l[0]
+                x += y
+            return x
+
+        res, ex = self._run_with_optimizer(testfunc, TIER2_THRESHOLD)
+        self.assertEqual(res, TIER2_THRESHOLD)
+        self.assertIsNotNone(ex)
+        uops = get_opnames(ex)
+
+        self.assertIn("_BINARY_OP_SUBSCR_LIST_INT", uops)
+        self.assertNotIn("_POP_TOP", uops)
+        self.assertNotIn("_POP_TOP_INT", uops)
+        self.assertIn("_POP_TOP_NOP", uops)
 
 def global_identity(x):
     return x