add test for optimization

Author: savannahostrowski

Lib/test/test_capi/test_opt.py

@@ -1418,6 +1418,7 @@ def testfunc(n):
         self.assertNotIn("_GUARD_NOS_INT", uops)
         self.assertNotIn("_GUARD_TOS_INT", uops)
 
+
     def test_decref_escapes(self):
         class Convert9999ToNone:
             def __del__(self):
@@ -1564,6 +1565,23 @@ def f(n):
         # But all of the appends we care about are still there:
         self.assertEqual(uops.count("_CALL_LIST_APPEND"), len("ABCDEFG"))
 
+def test_compare_pop_two_load_const_inline_borrow(self):
+        def testfunc(n):
+            x = 0
+            for _ in range(n):
+                a = 10
+                b = 10
+                if a == b:
+                    x += 1
+            return x
+
+        res, ex = self._run_with_optimizer(testfunc, TIER2_THRESHOLD)
+        self.assertEqual(res, 1)
+        self.assertIsNotNone(ex)
+        uops = get_opnames(ex)
+        self.assertNotIn("_COMPARE_OP_INT", uops)
+        self.assertNotIn("_POP_TWO_LOAD_CONST_INLINE_BORROW", uops)
+
 def global_identity(x):
     return x