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-rw-r--r--Lib/test/test_capi/test_opt.py547
1 files changed, 532 insertions, 15 deletions
diff --git a/Lib/test/test_capi/test_opt.py b/Lib/test/test_capi/test_opt.py
index 7e0c60d5522..e4c9a463855 100644
--- a/Lib/test/test_capi/test_opt.py
+++ b/Lib/test/test_capi/test_opt.py
@@ -407,12 +407,12 @@ class TestUops(unittest.TestCase):
x = 0
for i in range(m):
for j in MyIter(n):
- x += 1000*i + j
+ x += j
return x
- x = testfunc(TIER2_THRESHOLD, TIER2_THRESHOLD)
+ x = testfunc(TIER2_THRESHOLD, 2)
- self.assertEqual(x, sum(range(TIER2_THRESHOLD)) * TIER2_THRESHOLD * 1001)
+ self.assertEqual(x, sum(range(TIER2_THRESHOLD)) * 2)
ex = get_first_executor(testfunc)
self.assertIsNotNone(ex)
@@ -678,7 +678,7 @@ class TestUopsOptimization(unittest.TestCase):
self.assertLessEqual(len(guard_nos_float_count), 1)
# TODO gh-115506: this assertion may change after propagating constants.
# We'll also need to verify that propagation actually occurs.
- self.assertIn("_BINARY_OP_ADD_FLOAT", uops)
+ self.assertIn("_BINARY_OP_ADD_FLOAT__NO_DECREF_INPUTS", uops)
def test_float_subtract_constant_propagation(self):
def testfunc(n):
@@ -700,7 +700,7 @@ class TestUopsOptimization(unittest.TestCase):
self.assertLessEqual(len(guard_nos_float_count), 1)
# TODO gh-115506: this assertion may change after propagating constants.
# We'll also need to verify that propagation actually occurs.
- self.assertIn("_BINARY_OP_SUBTRACT_FLOAT", uops)
+ self.assertIn("_BINARY_OP_SUBTRACT_FLOAT__NO_DECREF_INPUTS", uops)
def test_float_multiply_constant_propagation(self):
def testfunc(n):
@@ -722,7 +722,7 @@ class TestUopsOptimization(unittest.TestCase):
self.assertLessEqual(len(guard_nos_float_count), 1)
# TODO gh-115506: this assertion may change after propagating constants.
# We'll also need to verify that propagation actually occurs.
- self.assertIn("_BINARY_OP_MULTIPLY_FLOAT", uops)
+ self.assertIn("_BINARY_OP_MULTIPLY_FLOAT__NO_DECREF_INPUTS", uops)
def test_add_unicode_propagation(self):
def testfunc(n):
@@ -1183,6 +1183,17 @@ class TestUopsOptimization(unittest.TestCase):
self.assertIsNotNone(ex)
self.assertIn("_RETURN_GENERATOR", get_opnames(ex))
+ def test_for_iter(self):
+ def testfunc(n):
+ t = 0
+ for i in set(range(n)):
+ t += i
+ return t
+ res, ex = self._run_with_optimizer(testfunc, TIER2_THRESHOLD)
+ self.assertEqual(res, TIER2_THRESHOLD * (TIER2_THRESHOLD - 1) // 2)
+ self.assertIsNotNone(ex)
+ self.assertIn("_FOR_ITER_TIER_TWO", get_opnames(ex))
+
@unittest.skip("Tracing into generators currently isn't supported.")
def test_for_iter_gen(self):
def gen(n):
@@ -1280,8 +1291,8 @@ class TestUopsOptimization(unittest.TestCase):
self.assertIsNotNone(ex)
self.assertEqual(res, TIER2_THRESHOLD * 6 + 1)
call = opnames.index("_CALL_BUILTIN_FAST")
- load_attr_top = opnames.index("_LOAD_ATTR_NONDESCRIPTOR_WITH_VALUES", 0, call)
- load_attr_bottom = opnames.index("_LOAD_ATTR_NONDESCRIPTOR_WITH_VALUES", call)
+ load_attr_top = opnames.index("_POP_TOP_LOAD_CONST_INLINE_BORROW", 0, call)
+ load_attr_bottom = opnames.index("_POP_TOP_LOAD_CONST_INLINE_BORROW", call)
self.assertEqual(opnames[:load_attr_top].count("_GUARD_TYPE_VERSION"), 1)
self.assertEqual(opnames[call:load_attr_bottom].count("_CHECK_VALIDITY"), 2)
@@ -1303,8 +1314,8 @@ class TestUopsOptimization(unittest.TestCase):
self.assertIsNotNone(ex)
self.assertEqual(res, TIER2_THRESHOLD * 2)
call = opnames.index("_CALL_BUILTIN_FAST_WITH_KEYWORDS")
- load_attr_top = opnames.index("_LOAD_ATTR_NONDESCRIPTOR_WITH_VALUES", 0, call)
- load_attr_bottom = opnames.index("_LOAD_ATTR_NONDESCRIPTOR_WITH_VALUES", call)
+ load_attr_top = opnames.index("_POP_TOP_LOAD_CONST_INLINE_BORROW", 0, call)
+ load_attr_bottom = opnames.index("_POP_TOP_LOAD_CONST_INLINE_BORROW", call)
self.assertEqual(opnames[:load_attr_top].count("_GUARD_TYPE_VERSION"), 1)
self.assertEqual(opnames[call:load_attr_bottom].count("_CHECK_VALIDITY"), 2)
@@ -1370,6 +1381,21 @@ class TestUopsOptimization(unittest.TestCase):
# Removed guard
self.assertNotIn("_CHECK_FUNCTION_EXACT_ARGS", uops)
+ def test_method_guards_removed_or_reduced(self):
+ def testfunc(n):
+ result = 0
+ for i in range(n):
+ result += test_bound_method(i)
+ return result
+ res, ex = self._run_with_optimizer(testfunc, TIER2_THRESHOLD)
+ self.assertEqual(res, sum(range(TIER2_THRESHOLD)))
+ self.assertIsNotNone(ex)
+ uops = get_opnames(ex)
+ self.assertIn("_PUSH_FRAME", uops)
+ # Strength reduced version
+ self.assertIn("_CHECK_FUNCTION_VERSION_INLINE", uops)
+ self.assertNotIn("_CHECK_METHOD_VERSION", uops)
+
def test_jit_error_pops(self):
"""
Tests that the correct number of pops are inserted into the
@@ -1655,13 +1681,11 @@ class TestUopsOptimization(unittest.TestCase):
self.assertIn("_CONTAINS_OP_DICT", uops)
self.assertNotIn("_TO_BOOL_BOOL", uops)
-
def test_remove_guard_for_known_type_str(self):
def f(n):
for i in range(n):
false = i == TIER2_THRESHOLD
empty = "X"[:false]
- empty += "" # Make JIT realize this is a string.
if empty:
return 1
return 0
@@ -1767,11 +1791,12 @@ class TestUopsOptimization(unittest.TestCase):
self.assertNotIn("_GUARD_TOS_UNICODE", uops)
self.assertIn("_BINARY_OP_ADD_UNICODE", uops)
- def test_call_type_1(self):
+ def test_call_type_1_guards_removed(self):
def testfunc(n):
x = 0
for _ in range(n):
- x += type(42) is int
+ foo = eval('42')
+ x += type(foo) is int
return x
res, ex = self._run_with_optimizer(testfunc, TIER2_THRESHOLD)
@@ -1782,6 +1807,25 @@ class TestUopsOptimization(unittest.TestCase):
self.assertNotIn("_GUARD_NOS_NULL", uops)
self.assertNotIn("_GUARD_CALLABLE_TYPE_1", uops)
+ def test_call_type_1_known_type(self):
+ def testfunc(n):
+ x = 0
+ for _ in range(n):
+ x += type(42) is int
+ return x
+
+ res, ex = self._run_with_optimizer(testfunc, TIER2_THRESHOLD)
+ self.assertEqual(res, TIER2_THRESHOLD)
+ self.assertIsNotNone(ex)
+ uops = get_opnames(ex)
+ # When the result of type(...) is known, _CALL_TYPE_1 is replaced with
+ # _POP_CALL_ONE_LOAD_CONST_INLINE_BORROW which is optimized away in
+ # remove_unneeded_uops.
+ self.assertNotIn("_CALL_TYPE_1", uops)
+ self.assertNotIn("_POP_CALL_ONE_LOAD_CONST_INLINE_BORROW", uops)
+ self.assertNotIn("_POP_CALL_LOAD_CONST_INLINE_BORROW", uops)
+ self.assertNotIn("_POP_TOP_LOAD_CONST_INLINE_BORROW", uops)
+
def test_call_type_1_result_is_const(self):
def testfunc(n):
x = 0
@@ -1795,7 +1839,6 @@ class TestUopsOptimization(unittest.TestCase):
self.assertEqual(res, TIER2_THRESHOLD)
self.assertIsNotNone(ex)
uops = get_opnames(ex)
- self.assertIn("_CALL_TYPE_1", uops)
self.assertNotIn("_GUARD_IS_NOT_NONE_POP", uops)
def test_call_str_1(self):
@@ -1919,9 +1962,98 @@ class TestUopsOptimization(unittest.TestCase):
_, ex = self._run_with_optimizer(testfunc, TIER2_THRESHOLD)
uops = get_opnames(ex)
+ self.assertNotIn("_GUARD_NOS_NULL", uops)
+ self.assertNotIn("_GUARD_CALLABLE_LEN", uops)
+ self.assertIn("_CALL_LEN", uops)
self.assertNotIn("_GUARD_NOS_INT", uops)
self.assertNotIn("_GUARD_TOS_INT", uops)
+
+ def test_call_len_known_length_small_int(self):
+ def testfunc(n):
+ x = 0
+ for _ in range(n):
+ t = (1, 2, 3, 4, 5)
+ if len(t) == 5:
+ x += 1
+ return x
+
+ res, ex = self._run_with_optimizer(testfunc, TIER2_THRESHOLD)
+ self.assertEqual(res, TIER2_THRESHOLD)
+ self.assertIsNotNone(ex)
+ uops = get_opnames(ex)
+ # When the length is < _PY_NSMALLPOSINTS, the len() call is replaced
+ # with just an inline load.
+ self.assertNotIn("_CALL_LEN", uops)
+ self.assertNotIn("_POP_CALL_ONE_LOAD_CONST_INLINE_BORROW", uops)
+ self.assertNotIn("_POP_CALL_LOAD_CONST_INLINE_BORROW", uops)
+ self.assertNotIn("_POP_TOP_LOAD_CONST_INLINE_BORROW", uops)
+
+ def test_call_len_known_length(self):
+ def testfunc(n):
+ class C:
+ t = tuple(range(300))
+
+ x = 0
+ for _ in range(n):
+ if len(C.t) == 300: # comparison + guard removed
+ x += 1
+ return x
+
+ res, ex = self._run_with_optimizer(testfunc, TIER2_THRESHOLD)
+ self.assertEqual(res, TIER2_THRESHOLD)
+ self.assertIsNotNone(ex)
+ uops = get_opnames(ex)
+ # When the length is >= _PY_NSMALLPOSINTS, we cannot replace
+ # the len() call with an inline load, but knowing the exact
+ # length allows us to optimize more code, such as conditionals
+ # in this case
self.assertIn("_CALL_LEN", uops)
+ self.assertNotIn("_COMPARE_OP_INT", uops)
+ self.assertNotIn("_GUARD_IS_TRUE_POP", uops)
+
+ def test_get_len_with_const_tuple(self):
+ def testfunc(n):
+ x = 0.0
+ for _ in range(n):
+ match (1, 2, 3, 4):
+ case [_, _, _, _]:
+ x += 1.0
+ return x
+ res, ex = self._run_with_optimizer(testfunc, TIER2_THRESHOLD)
+ self.assertEqual(int(res), TIER2_THRESHOLD)
+ uops = get_opnames(ex)
+ self.assertNotIn("_GUARD_NOS_INT", uops)
+ self.assertNotIn("_GET_LEN", uops)
+ self.assertIn("_LOAD_CONST_INLINE_BORROW", uops)
+
+ def test_get_len_with_non_const_tuple(self):
+ def testfunc(n):
+ x = 0.0
+ for _ in range(n):
+ match object(), object():
+ case [_, _]:
+ x += 1.0
+ return x
+ res, ex = self._run_with_optimizer(testfunc, TIER2_THRESHOLD)
+ self.assertEqual(int(res), TIER2_THRESHOLD)
+ uops = get_opnames(ex)
+ self.assertNotIn("_GUARD_NOS_INT", uops)
+ self.assertNotIn("_GET_LEN", uops)
+ self.assertIn("_LOAD_CONST_INLINE_BORROW", uops)
+
+ def test_get_len_with_non_tuple(self):
+ def testfunc(n):
+ x = 0.0
+ for _ in range(n):
+ match [1, 2, 3, 4]:
+ case [_, _, _, _]:
+ x += 1.0
+ return x
+ res, ex = self._run_with_optimizer(testfunc, TIER2_THRESHOLD)
+ self.assertEqual(int(res), TIER2_THRESHOLD)
+ uops = get_opnames(ex)
+ self.assertNotIn("_GUARD_NOS_INT", uops)
+ self.assertIn("_GET_LEN", uops)
def test_binary_op_subscr_tuple_int(self):
def testfunc(n):
@@ -1940,9 +2072,394 @@ class TestUopsOptimization(unittest.TestCase):
self.assertNotIn("_COMPARE_OP_INT", uops)
self.assertNotIn("_GUARD_IS_TRUE_POP", uops)
+ def test_call_isinstance_guards_removed(self):
+ def testfunc(n):
+ x = 0
+ for _ in range(n):
+ y = isinstance(42, int)
+ if y:
+ x += 1
+ return x
+
+ res, ex = self._run_with_optimizer(testfunc, TIER2_THRESHOLD)
+ self.assertEqual(res, TIER2_THRESHOLD)
+ self.assertIsNotNone(ex)
+ uops = get_opnames(ex)
+ self.assertNotIn("_CALL_ISINSTANCE", uops)
+ self.assertNotIn("_GUARD_THIRD_NULL", uops)
+ self.assertNotIn("_GUARD_CALLABLE_ISINSTANCE", uops)
+ self.assertNotIn("_POP_TOP_LOAD_CONST_INLINE_BORROW", uops)
+ self.assertNotIn("_POP_CALL_LOAD_CONST_INLINE_BORROW", uops)
+ self.assertNotIn("_POP_CALL_ONE_LOAD_CONST_INLINE_BORROW", uops)
+ self.assertNotIn("_POP_CALL_TWO_LOAD_CONST_INLINE_BORROW", uops)
+
+ def test_call_list_append(self):
+ def testfunc(n):
+ a = []
+ for i in range(n):
+ a.append(i)
+ return sum(a)
+
+ res, ex = self._run_with_optimizer(testfunc, TIER2_THRESHOLD)
+ self.assertEqual(res, sum(range(TIER2_THRESHOLD)))
+ uops = get_opnames(ex)
+ self.assertIn("_CALL_LIST_APPEND", uops)
+ # We should remove these in the future
+ self.assertIn("_GUARD_NOS_LIST", uops)
+ self.assertIn("_GUARD_CALLABLE_LIST_APPEND", uops)
+
+ def test_call_isinstance_is_true(self):
+ def testfunc(n):
+ x = 0
+ for _ in range(n):
+ y = isinstance(42, int)
+ if y:
+ x += 1
+ return x
+
+ res, ex = self._run_with_optimizer(testfunc, TIER2_THRESHOLD)
+ self.assertEqual(res, TIER2_THRESHOLD)
+ self.assertIsNotNone(ex)
+ uops = get_opnames(ex)
+ self.assertNotIn("_CALL_ISINSTANCE", uops)
+ self.assertNotIn("_TO_BOOL_BOOL", uops)
+ self.assertNotIn("_GUARD_IS_TRUE_POP", uops)
+ self.assertNotIn("_POP_TOP_LOAD_CONST_INLINE_BORROW", uops)
+ self.assertNotIn("_POP_CALL_LOAD_CONST_INLINE_BORROW", uops)
+ self.assertNotIn("_POP_CALL_ONE_LOAD_CONST_INLINE_BORROW", uops)
+ self.assertNotIn("_POP_CALL_TWO_LOAD_CONST_INLINE_BORROW", uops)
+
+ def test_call_isinstance_is_false(self):
+ def testfunc(n):
+ x = 0
+ for _ in range(n):
+ y = isinstance(42, str)
+ if not y:
+ x += 1
+ return x
+
+ res, ex = self._run_with_optimizer(testfunc, TIER2_THRESHOLD)
+ self.assertEqual(res, TIER2_THRESHOLD)
+ self.assertIsNotNone(ex)
+ uops = get_opnames(ex)
+ self.assertNotIn("_CALL_ISINSTANCE", uops)
+ self.assertNotIn("_TO_BOOL_BOOL", uops)
+ self.assertNotIn("_GUARD_IS_FALSE_POP", uops)
+ self.assertNotIn("_POP_TOP_LOAD_CONST_INLINE_BORROW", uops)
+ self.assertNotIn("_POP_CALL_LOAD_CONST_INLINE_BORROW", uops)
+ self.assertNotIn("_POP_CALL_ONE_LOAD_CONST_INLINE_BORROW", uops)
+ self.assertNotIn("_POP_CALL_TWO_LOAD_CONST_INLINE_BORROW", uops)
+
+ def test_call_isinstance_subclass(self):
+ def testfunc(n):
+ x = 0
+ for _ in range(n):
+ y = isinstance(True, int)
+ if y:
+ x += 1
+ return x
+
+ res, ex = self._run_with_optimizer(testfunc, TIER2_THRESHOLD)
+ self.assertEqual(res, TIER2_THRESHOLD)
+ self.assertIsNotNone(ex)
+ uops = get_opnames(ex)
+ self.assertNotIn("_CALL_ISINSTANCE", uops)
+ self.assertNotIn("_TO_BOOL_BOOL", uops)
+ self.assertNotIn("_GUARD_IS_TRUE_POP", uops)
+ self.assertNotIn("_POP_TOP_LOAD_CONST_INLINE_BORROW", uops)
+ self.assertNotIn("_POP_CALL_LOAD_CONST_INLINE_BORROW", uops)
+ self.assertNotIn("_POP_CALL_ONE_LOAD_CONST_INLINE_BORROW", uops)
+ self.assertNotIn("_POP_CALL_TWO_LOAD_CONST_INLINE_BORROW", uops)
+
+ def test_call_isinstance_unknown_object(self):
+ def testfunc(n):
+ x = 0
+ for _ in range(n):
+ # The optimizer doesn't know the return type here:
+ bar = eval("42")
+ # This will only narrow to bool:
+ y = isinstance(bar, int)
+ if y:
+ x += 1
+ 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("_CALL_ISINSTANCE", uops)
+ self.assertNotIn("_TO_BOOL_BOOL", uops)
+ self.assertIn("_GUARD_IS_TRUE_POP", uops)
+
+ def test_call_isinstance_tuple_of_classes(self):
+ def testfunc(n):
+ x = 0
+ for _ in range(n):
+ # A tuple of classes is currently not optimized,
+ # so this is only narrowed to bool:
+ y = isinstance(42, (int, str))
+ if y:
+ x += 1
+ 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("_CALL_ISINSTANCE", uops)
+ self.assertNotIn("_TO_BOOL_BOOL", uops)
+ self.assertIn("_GUARD_IS_TRUE_POP", uops)
+
+ def test_call_isinstance_metaclass(self):
+ class EvenNumberMeta(type):
+ def __instancecheck__(self, number):
+ return number % 2 == 0
+
+ class EvenNumber(metaclass=EvenNumberMeta):
+ pass
+
+ def testfunc(n):
+ x = 0
+ for _ in range(n):
+ # Only narrowed to bool
+ y = isinstance(42, EvenNumber)
+ if y:
+ x += 1
+ 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("_CALL_ISINSTANCE", uops)
+ self.assertNotIn("_TO_BOOL_BOOL", uops)
+ self.assertIn("_GUARD_IS_TRUE_POP", uops)
+
+ def test_set_type_version_sets_type(self):
+ class C:
+ A = 1
+
+ def testfunc(n):
+ x = 0
+ c = C()
+ for _ in range(n):
+ x += c.A # Guarded.
+ x += type(c).A # Unguarded!
+ return x
+
+ res, ex = self._run_with_optimizer(testfunc, TIER2_THRESHOLD)
+ self.assertEqual(res, 2 * TIER2_THRESHOLD)
+ self.assertIsNotNone(ex)
+ uops = get_opnames(ex)
+ self.assertIn("_GUARD_TYPE_VERSION", uops)
+ self.assertNotIn("_CHECK_ATTR_CLASS", uops)
+
+ def test_load_small_int(self):
+ def testfunc(n):
+ x = 0
+ for i in range(n):
+ x += 1
+ return x
+ res, ex = self._run_with_optimizer(testfunc, TIER2_THRESHOLD)
+ self.assertEqual(res, TIER2_THRESHOLD)
+ self.assertIsNotNone(ex)
+ uops = get_opnames(ex)
+ self.assertNotIn("_LOAD_SMALL_INT", uops)
+ self.assertIn("_LOAD_CONST_INLINE_BORROW", uops)
+
+ def test_cached_attributes(self):
+ class C:
+ A = 1
+ def m(self):
+ return 1
+ class D:
+ __slots__ = ()
+ A = 1
+ def m(self):
+ return 1
+ class E(Exception):
+ def m(self):
+ return 1
+ def f(n):
+ x = 0
+ c = C()
+ d = D()
+ e = E()
+ for _ in range(n):
+ x += C.A # _LOAD_ATTR_CLASS
+ x += c.A # _LOAD_ATTR_NONDESCRIPTOR_WITH_VALUES
+ x += d.A # _LOAD_ATTR_NONDESCRIPTOR_NO_DICT
+ x += c.m() # _LOAD_ATTR_METHOD_WITH_VALUES
+ x += d.m() # _LOAD_ATTR_METHOD_NO_DICT
+ x += e.m() # _LOAD_ATTR_METHOD_LAZY_DICT
+ return x
+
+ res, ex = self._run_with_optimizer(f, TIER2_THRESHOLD)
+ self.assertEqual(res, 6 * TIER2_THRESHOLD)
+ self.assertIsNotNone(ex)
+ uops = get_opnames(ex)
+ self.assertNotIn("_LOAD_ATTR_CLASS", uops)
+ self.assertNotIn("_LOAD_ATTR_NONDESCRIPTOR_WITH_VALUES", uops)
+ self.assertNotIn("_LOAD_ATTR_NONDESCRIPTOR_NO_DICT", uops)
+ self.assertNotIn("_LOAD_ATTR_METHOD_WITH_VALUES", uops)
+ self.assertNotIn("_LOAD_ATTR_METHOD_NO_DICT", uops)
+ self.assertNotIn("_LOAD_ATTR_METHOD_LAZY_DICT", uops)
+
+ def test_float_op_refcount_elimination(self):
+ def testfunc(args):
+ a, b, n = args
+ c = 0.0
+ for _ in range(n):
+ c += a + b
+ return c
+
+ res, ex = self._run_with_optimizer(testfunc, (0.1, 0.1, TIER2_THRESHOLD))
+ self.assertAlmostEqual(res, TIER2_THRESHOLD * (0.1 + 0.1))
+ self.assertIsNotNone(ex)
+ uops = get_opnames(ex)
+ self.assertIn("_BINARY_OP_ADD_FLOAT__NO_DECREF_INPUTS", uops)
+
+ def test_remove_guard_for_slice_list(self):
+ def f(n):
+ for i in range(n):
+ false = i == TIER2_THRESHOLD
+ sliced = [1, 2, 3][:false]
+ if sliced:
+ return 1
+ return 0
+
+ res, ex = self._run_with_optimizer(f, TIER2_THRESHOLD)
+ self.assertEqual(res, 0)
+ self.assertIsNotNone(ex)
+ uops = get_opnames(ex)
+ self.assertIn("_TO_BOOL_LIST", uops)
+ self.assertNotIn("_GUARD_TOS_LIST", uops)
+
+ def test_remove_guard_for_slice_tuple(self):
+ def f(n):
+ for i in range(n):
+ false = i == TIER2_THRESHOLD
+ a, b = (1, 2, 3)[: false + 2]
+
+ _, ex = self._run_with_optimizer(f, TIER2_THRESHOLD)
+ self.assertIsNotNone(ex)
+ uops = get_opnames(ex)
+ self.assertIn("_UNPACK_SEQUENCE_TWO_TUPLE", uops)
+ self.assertNotIn("_GUARD_TOS_TUPLE", uops)
+
+ def test_unary_invert_long_type(self):
+ def testfunc(n):
+ for _ in range(n):
+ a = 9397
+ x = ~a + ~a
+
+ testfunc(TIER2_THRESHOLD)
+
+ ex = get_first_executor(testfunc)
+ self.assertIsNotNone(ex)
+ uops = get_opnames(ex)
+
+ self.assertNotIn("_GUARD_TOS_INT", uops)
+ self.assertNotIn("_GUARD_NOS_INT", uops)
+
+ def test_attr_promotion_failure(self):
+ # We're not testing for any specific uops here, just
+ # testing it doesn't crash.
+ script_helper.assert_python_ok('-c', textwrap.dedent("""
+ import _testinternalcapi
+ import _opcode
+ import email
+
+ def get_first_executor(func):
+ code = func.__code__
+ co_code = code.co_code
+ for i in range(0, len(co_code), 2):
+ try:
+ return _opcode.get_executor(code, i)
+ except ValueError:
+ pass
+ return None
+
+ def testfunc(n):
+ for _ in range(n):
+ email.jit_testing = None
+ prompt = email.jit_testing
+ del email.jit_testing
+
+
+ testfunc(_testinternalcapi.TIER2_THRESHOLD)
+ ex = get_first_executor(testfunc)
+ assert ex is not None
+ """))
+
+ def test_pop_top_specialize_none(self):
+ def testfunc(n):
+ for _ in range(n):
+ global_identity(None)
+
+ testfunc(TIER2_THRESHOLD)
+
+ ex = get_first_executor(testfunc)
+ self.assertIsNotNone(ex)
+ uops = get_opnames(ex)
+
+ self.assertIn("_POP_TOP_NOP", uops)
+
+ def test_pop_top_specialize_int(self):
+ def testfunc(n):
+ for _ in range(n):
+ global_identity(100000)
+
+ testfunc(TIER2_THRESHOLD)
+
+ ex = get_first_executor(testfunc)
+ self.assertIsNotNone(ex)
+ uops = get_opnames(ex)
+
+ self.assertIn("_POP_TOP_INT", uops)
+
+ def test_pop_top_specialize_float(self):
+ def testfunc(n):
+ for _ in range(n):
+ global_identity(1e6)
+
+ testfunc(TIER2_THRESHOLD)
+
+ ex = get_first_executor(testfunc)
+ self.assertIsNotNone(ex)
+ uops = get_opnames(ex)
+
+ self.assertIn("_POP_TOP_FLOAT", uops)
+
+
+ def test_unary_negative_long_float_type(self):
+ def testfunc(n):
+ for _ in range(n):
+ a = 9397
+ f = 9397.0
+ x = -a + -a
+ y = -f + -f
+
+ testfunc(TIER2_THRESHOLD)
+
+ ex = get_first_executor(testfunc)
+ self.assertIsNotNone(ex)
+ uops = get_opnames(ex)
+
+ self.assertNotIn("_GUARD_TOS_INT", uops)
+ self.assertNotIn("_GUARD_NOS_INT", uops)
+ self.assertNotIn("_GUARD_TOS_FLOAT", uops)
+ self.assertNotIn("_GUARD_NOS_FLOAT", uops)
def global_identity(x):
return x
+class TestObject:
+ def test(self, *args, **kwargs):
+ return args[0]
+
+test_object = TestObject()
+test_bound_method = TestObject.test.__get__(test_object)
+
if __name__ == "__main__":
unittest.main()