https://github.com/python/cpython/commit/55815a6474c59001f0230e44560341b643268e87
commit: 55815a6474c59001f0230e44560341b643268e87
branch: main
author: Yan Yanchii <yyanc...@gmail.com>
committer: iritkatriel <1055913+iritkatr...@users.noreply.github.com>
date: 2025-03-14T21:23:27Z
summary:
gh-130480: Move duplicate `LOAD_SMALL_INT` optimization from codegen to CFG
(#130481)
files:
M Lib/test/test_compiler_codegen.py
M Lib/test/test_dis.py
M Lib/test/test_peepholer.py
M Programs/test_frozenmain.h
M Python/codegen.c
M Python/flowgraph.c
diff --git a/Lib/test/test_compiler_codegen.py
b/Lib/test/test_compiler_codegen.py
index cf5e2d901db4de..cc9ecc7e38917b 100644
--- a/Lib/test/test_compiler_codegen.py
+++ b/Lib/test/test_compiler_codegen.py
@@ -29,10 +29,10 @@ def test_if_expression(self):
('LOAD_CONST', 0, 1),
('TO_BOOL', 0, 1),
('POP_JUMP_IF_FALSE', false_lbl := self.Label(), 1),
- ('LOAD_SMALL_INT', 42, 1),
+ ('LOAD_CONST', 1, 1), # 42
('JUMP_NO_INTERRUPT', exit_lbl := self.Label()),
false_lbl,
- ('LOAD_SMALL_INT', 24, 1),
+ ('LOAD_CONST', 2, 1), # 24
exit_lbl,
('POP_TOP', None),
('LOAD_CONST', 1),
@@ -82,7 +82,7 @@ def f(x):
# Function body
('RESUME', 0),
('LOAD_FAST', 0),
- ('LOAD_SMALL_INT', 42),
+ ('LOAD_CONST', 42),
('BINARY_OP', 0),
('RETURN_VALUE', None),
('LOAD_CONST', 0),
@@ -125,23 +125,23 @@ def g():
[
('RESUME', 0),
('NOP', None),
- ('LOAD_SMALL_INT', 12),
+ ('LOAD_CONST', 12),
('RETURN_VALUE', None),
('LOAD_CONST', 1),
('RETURN_VALUE', None),
],
[
('RESUME', 0),
- ('LOAD_SMALL_INT', 1),
+ ('LOAD_CONST', 1),
('STORE_FAST', 0),
- ('LOAD_SMALL_INT', 2),
+ ('LOAD_CONST', 2),
('STORE_FAST', 1),
- ('LOAD_SMALL_INT', 3),
+ ('LOAD_CONST', 3),
('STORE_FAST', 2),
- ('LOAD_SMALL_INT', 4),
+ ('LOAD_CONST', 4),
('STORE_FAST', 3),
('NOP', None),
- ('LOAD_SMALL_INT', 42),
+ ('LOAD_CONST', 42),
('RETURN_VALUE', None),
('LOAD_CONST', 0),
('RETURN_VALUE', None),
diff --git a/Lib/test/test_dis.py b/Lib/test/test_dis.py
index 6e1d94bd535663..726af931a38ecd 100644
--- a/Lib/test/test_dis.py
+++ b/Lib/test/test_dis.py
@@ -56,7 +56,7 @@ def cm(cls, x):
COMPARE_OP 72 (==)
LOAD_FAST 0 (self)
STORE_ATTR 0 (x)
- LOAD_CONST 0 (None)
+ LOAD_CONST 1 (None)
RETURN_VALUE
""" % (_C.__init__.__code__.co_firstlineno,
_C.__init__.__code__.co_firstlineno + 1,)
@@ -67,7 +67,7 @@ def cm(cls, x):
COMPARE_OP 72 (==)
LOAD_FAST 0
STORE_ATTR 0
- LOAD_CONST 0
+ LOAD_CONST 1
RETURN_VALUE
"""
@@ -79,7 +79,7 @@ def cm(cls, x):
COMPARE_OP 72 (==)
LOAD_FAST 0 (cls)
STORE_ATTR 0 (x)
- LOAD_CONST 0 (None)
+ LOAD_CONST 1 (None)
RETURN_VALUE
""" % (_C.cm.__code__.co_firstlineno, _C.cm.__code__.co_firstlineno + 2,)
@@ -90,7 +90,7 @@ def cm(cls, x):
LOAD_SMALL_INT 1
COMPARE_OP 72 (==)
STORE_FAST 0 (x)
- LOAD_CONST 0 (None)
+ LOAD_CONST 1 (None)
RETURN_VALUE
""" % (_C.sm.__code__.co_firstlineno, _C.sm.__code__.co_firstlineno + 2,)
@@ -182,7 +182,7 @@ def bug708901():
%3d L2: END_FOR
POP_ITER
- LOAD_CONST 0 (None)
+ LOAD_CONST 1 (None)
RETURN_VALUE
""" % (bug708901.__code__.co_firstlineno,
bug708901.__code__.co_firstlineno + 1,
@@ -201,7 +201,7 @@ def bug1333982(x=[]):
%3d RESUME 0
%3d LOAD_COMMON_CONSTANT 0 (AssertionError)
- LOAD_CONST 0 (<code object <genexpr> at 0x...,
file "%s", line %d>)
+ LOAD_CONST 1 (<code object <genexpr> at 0x...,
file "%s", line %d>)
MAKE_FUNCTION
LOAD_FAST 0 (x)
GET_ITER
@@ -280,10 +280,10 @@ def wrap_func_w_kwargs():
LOAD_SMALL_INT 1
LOAD_SMALL_INT 2
LOAD_SMALL_INT 5
- LOAD_CONST 0 (('c',))
+ LOAD_CONST 1 (('c',))
CALL_KW 3
POP_TOP
- LOAD_CONST 1 (None)
+ LOAD_CONST 2 (None)
RETURN_VALUE
""" % (wrap_func_w_kwargs.__code__.co_firstlineno,
wrap_func_w_kwargs.__code__.co_firstlineno + 1)
@@ -292,11 +292,11 @@ def wrap_func_w_kwargs():
0 RESUME 0
1 LOAD_SMALL_INT 0
- LOAD_CONST 0 (('*',))
+ LOAD_CONST 1 (('*',))
IMPORT_NAME 0 (math)
CALL_INTRINSIC_1 2 (INTRINSIC_IMPORT_STAR)
POP_TOP
- LOAD_CONST 1 (None)
+ LOAD_CONST 2 (None)
RETURN_VALUE
"""
@@ -369,7 +369,7 @@ def wrap_func_w_kwargs():
LOAD_SMALL_INT 1
BINARY_OP 0 (+)
STORE_NAME 0 (x)
- LOAD_CONST 0 (None)
+ LOAD_CONST 1 (None)
RETURN_VALUE
"""
@@ -395,10 +395,10 @@ def wrap_func_w_kwargs():
CALL 1
STORE_SUBSCR
- 2 LOAD_CONST 0 (<code object __annotate__ at 0x...,
file "<dis>", line 2>)
+ 2 LOAD_CONST 1 (<code object __annotate__ at 0x...,
file "<dis>", line 2>)
MAKE_FUNCTION
STORE_NAME 3 (__annotate__)
- LOAD_CONST 1 (None)
+ LOAD_CONST 2 (None)
RETURN_VALUE
"""
@@ -466,14 +466,14 @@ def foo(a: int, b: str) -> str:
LOAD_ATTR 2 (__traceback__)
STORE_FAST 1 (tb)
L5: POP_EXCEPT
- LOAD_CONST 0 (None)
+ LOAD_CONST 1 (None)
STORE_FAST 0 (e)
DELETE_FAST 0 (e)
%4d LOAD_FAST 1 (tb)
RETURN_VALUE
- -- L6: LOAD_CONST 0 (None)
+ -- L6: LOAD_CONST 1 (None)
STORE_FAST 0 (e)
DELETE_FAST 0 (e)
RERAISE 1
@@ -542,15 +542,15 @@ def _with(c):
%4d LOAD_SMALL_INT 1
STORE_FAST 1 (x)
-%4d L2: LOAD_CONST 0 (None)
- LOAD_CONST 0 (None)
- LOAD_CONST 0 (None)
+%4d L2: LOAD_CONST 1 (None)
+ LOAD_CONST 1 (None)
+ LOAD_CONST 1 (None)
CALL 3
POP_TOP
%4d LOAD_SMALL_INT 2
STORE_FAST 2 (y)
- LOAD_CONST 0 (None)
+ LOAD_CONST 1 (None)
RETURN_VALUE
%4d L3: PUSH_EXC_INFO
@@ -567,7 +567,7 @@ def _with(c):
%4d LOAD_SMALL_INT 2
STORE_FAST 2 (y)
- LOAD_CONST 0 (None)
+ LOAD_CONST 1 (None)
RETURN_VALUE
-- L6: COPY 3
@@ -892,7 +892,7 @@ def loop_test():
%3d RESUME_CHECK 0
%3d BUILD_LIST 0
- LOAD_CONST_MORTAL 1 ((1, 2, 3))
+ LOAD_CONST_MORTAL 2 ((1, 2, 3))
LIST_EXTEND 1
LOAD_SMALL_INT 3
BINARY_OP 5 (*)
@@ -908,7 +908,7 @@ def loop_test():
%3d L2: END_FOR
POP_ITER
- LOAD_CONST_IMMORTAL 0 (None)
+ LOAD_CONST_IMMORTAL 1 (None)
RETURN_VALUE
""" % (loop_test.__code__.co_firstlineno,
loop_test.__code__.co_firstlineno + 1,
@@ -1071,7 +1071,7 @@ def test_dis_with_linenos_but_no_columns(self):
'',
'2:5-2:6 LOAD_SMALL_INT 1',
'2:?-2:? STORE_FAST 0 (x)',
- '2:?-2:? LOAD_CONST 0 (None)',
+ '2:?-2:? LOAD_CONST 1 (None)',
'2:?-2:? RETURN_VALUE',
'',
])
@@ -1537,6 +1537,8 @@ def f(c=c):
Number of locals: 0
Stack size: \\d+
Flags: 0x0
+Constants:
+ 0: 1
Names:
0: x"""
@@ -1550,7 +1552,8 @@ def f(c=c):
Stack size: \\d+
Flags: 0x0
Constants:
- 0: None
+ 0: 1
+ 1: None
Names:
0: x"""
@@ -1564,7 +1567,7 @@ def f(c=c):
Stack size: \\d+
Flags: 0x0
Constants:
- 0: None
+ 0: 0
Names:
0: x"""
@@ -1584,7 +1587,8 @@ async def async_def():
Stack size: \\d+
Flags: OPTIMIZED, NEWLOCALS, COROUTINE
Constants:
- 0: None
+ 0: 1
+ 1: None
Names:
0: b
1: c
@@ -1668,9 +1672,9 @@ def jumpy():
# End fodder for opinfo generation tests
expected_outer_line = 1
_line_offset = outer.__code__.co_firstlineno - 1
-code_object_f = outer.__code__.co_consts[0]
+code_object_f = outer.__code__.co_consts[1]
expected_f_line = code_object_f.co_firstlineno - _line_offset
-code_object_inner = code_object_f.co_consts[0]
+code_object_inner = code_object_f.co_consts[1]
expected_inner_line = code_object_inner.co_firstlineno - _line_offset
expected_jumpy_line = 1
@@ -1734,11 +1738,11 @@ def _prepare_test_cases():
make_inst(opname='MAKE_CELL', arg=0, argval='a', argrepr='a', offset=0,
start_offset=0, starts_line=True, line_number=None),
make_inst(opname='MAKE_CELL', arg=1, argval='b', argrepr='b', offset=2,
start_offset=2, starts_line=False, line_number=None),
make_inst(opname='RESUME', arg=0, argval=0, argrepr='', offset=4,
start_offset=4, starts_line=True, line_number=1),
- make_inst(opname='LOAD_CONST', arg=3, argval=(3, 4), argrepr='(3, 4)',
offset=6, start_offset=6, starts_line=True, line_number=2),
+ make_inst(opname='LOAD_CONST', arg=4, argval=(3, 4), argrepr='(3, 4)',
offset=6, start_offset=6, starts_line=True, line_number=2),
make_inst(opname='LOAD_FAST', arg=0, argval='a', argrepr='a', offset=8,
start_offset=8, starts_line=False, line_number=2),
make_inst(opname='LOAD_FAST', arg=1, argval='b', argrepr='b', offset=10,
start_offset=10, starts_line=False, line_number=2),
make_inst(opname='BUILD_TUPLE', arg=2, argval=2, argrepr='', offset=12,
start_offset=12, starts_line=False, line_number=2),
- make_inst(opname='LOAD_CONST', arg=0, argval=code_object_f,
argrepr=repr(code_object_f), offset=14, start_offset=14, starts_line=False,
line_number=2),
+ make_inst(opname='LOAD_CONST', arg=1, argval=code_object_f,
argrepr=repr(code_object_f), offset=14, start_offset=14, starts_line=False,
line_number=2),
make_inst(opname='MAKE_FUNCTION', arg=None, argval=None, argrepr='',
offset=16, start_offset=16, starts_line=False, line_number=2),
make_inst(opname='SET_FUNCTION_ATTRIBUTE', arg=8, argval=8,
argrepr='closure', offset=18, start_offset=18, starts_line=False,
line_number=2),
make_inst(opname='SET_FUNCTION_ATTRIBUTE', arg=1, argval=1,
argrepr='defaults', offset=20, start_offset=20, starts_line=False,
line_number=2),
@@ -1746,11 +1750,11 @@ def _prepare_test_cases():
make_inst(opname='LOAD_GLOBAL', arg=1, argval='print', argrepr='print +
NULL', offset=24, start_offset=24, starts_line=True, line_number=7,
cache_info=[('counter', 1, b'\x00\x00'), ('index', 1, b'\x00\x00'),
('module_keys_version', 1, b'\x00\x00'), ('builtin_keys_version', 1,
b'\x00\x00')]),
make_inst(opname='LOAD_DEREF', arg=0, argval='a', argrepr='a', offset=34,
start_offset=34, starts_line=False, line_number=7),
make_inst(opname='LOAD_DEREF', arg=1, argval='b', argrepr='b', offset=36,
start_offset=36, starts_line=False, line_number=7),
- make_inst(opname='LOAD_CONST', arg=1, argval='', argrepr="''", offset=38,
start_offset=38, starts_line=False, line_number=7),
+ make_inst(opname='LOAD_CONST', arg=2, argval='', argrepr="''", offset=38,
start_offset=38, starts_line=False, line_number=7),
make_inst(opname='LOAD_SMALL_INT', arg=1, argval=1, argrepr='', offset=40,
start_offset=40, starts_line=False, line_number=7),
make_inst(opname='BUILD_LIST', arg=0, argval=0, argrepr='', offset=42,
start_offset=42, starts_line=False, line_number=7),
make_inst(opname='BUILD_MAP', arg=0, argval=0, argrepr='', offset=44,
start_offset=44, starts_line=False, line_number=7),
- make_inst(opname='LOAD_CONST', arg=2, argval='Hello world!', argrepr="'Hello
world!'", offset=46, start_offset=46, starts_line=False, line_number=7),
+ make_inst(opname='LOAD_CONST', arg=3, argval='Hello world!', argrepr="'Hello
world!'", offset=46, start_offset=46, starts_line=False, line_number=7),
make_inst(opname='CALL', arg=7, argval=7, argrepr='', offset=48,
start_offset=48, starts_line=False, line_number=7, cache_info=[('counter', 1,
b'\x00\x00'), ('func_version', 2, b'\x00\x00\x00\x00')]),
make_inst(opname='POP_TOP', arg=None, argval=None, argrepr='', offset=56,
start_offset=56, starts_line=False, line_number=7),
make_inst(opname='LOAD_FAST', arg=2, argval='f', argrepr='f', offset=58,
start_offset=58, starts_line=True, line_number=8),
@@ -1762,13 +1766,13 @@ def _prepare_test_cases():
make_inst(opname='MAKE_CELL', arg=0, argval='c', argrepr='c', offset=2,
start_offset=2, starts_line=False, line_number=None),
make_inst(opname='MAKE_CELL', arg=1, argval='d', argrepr='d', offset=4,
start_offset=4, starts_line=False, line_number=None),
make_inst(opname='RESUME', arg=0, argval=0, argrepr='', offset=6,
start_offset=6, starts_line=True, line_number=2),
- make_inst(opname='LOAD_CONST', arg=1, argval=(5, 6), argrepr='(5, 6)',
offset=8, start_offset=8, starts_line=True, line_number=3),
+ make_inst(opname='LOAD_CONST', arg=2, argval=(5, 6), argrepr='(5, 6)',
offset=8, start_offset=8, starts_line=True, line_number=3),
make_inst(opname='LOAD_FAST', arg=3, argval='a', argrepr='a', offset=10,
start_offset=10, starts_line=False, line_number=3),
make_inst(opname='LOAD_FAST', arg=4, argval='b', argrepr='b', offset=12,
start_offset=12, starts_line=False, line_number=3),
make_inst(opname='LOAD_FAST', arg=0, argval='c', argrepr='c', offset=14,
start_offset=14, starts_line=False, line_number=3),
make_inst(opname='LOAD_FAST', arg=1, argval='d', argrepr='d', offset=16,
start_offset=16, starts_line=False, line_number=3),
make_inst(opname='BUILD_TUPLE', arg=4, argval=4, argrepr='', offset=18,
start_offset=18, starts_line=False, line_number=3),
- make_inst(opname='LOAD_CONST', arg=0, argval=code_object_inner,
argrepr=repr(code_object_inner), offset=20, start_offset=20, starts_line=False,
line_number=3),
+ make_inst(opname='LOAD_CONST', arg=1, argval=code_object_inner,
argrepr=repr(code_object_inner), offset=20, start_offset=20, starts_line=False,
line_number=3),
make_inst(opname='MAKE_FUNCTION', arg=None, argval=None, argrepr='',
offset=22, start_offset=22, starts_line=False, line_number=3),
make_inst(opname='SET_FUNCTION_ATTRIBUTE', arg=8, argval=8,
argrepr='closure', offset=24, start_offset=24, starts_line=False,
line_number=3),
make_inst(opname='SET_FUNCTION_ATTRIBUTE', arg=1, argval=1,
argrepr='defaults', offset=26, start_offset=26, starts_line=False,
line_number=3),
@@ -1828,7 +1832,7 @@ def _prepare_test_cases():
make_inst(opname='END_FOR', arg=None, argval=None, argrepr='', offset=92,
start_offset=92, starts_line=True, line_number=3, label=4),
make_inst(opname='POP_ITER', arg=None, argval=None, argrepr='', offset=94,
start_offset=94, starts_line=False, line_number=3),
make_inst(opname='LOAD_GLOBAL', arg=3, argval='print', argrepr='print +
NULL', offset=96, start_offset=96, starts_line=True, line_number=10,
cache_info=[('counter', 1, b'\x00\x00'), ('index', 1, b'\x00\x00'),
('module_keys_version', 1, b'\x00\x00'), ('builtin_keys_version', 1,
b'\x00\x00')]),
- make_inst(opname='LOAD_CONST', arg=0, argval='I can haz else clause?',
argrepr="'I can haz else clause?'", offset=106, start_offset=106,
starts_line=False, line_number=10),
+ make_inst(opname='LOAD_CONST', arg=1, argval='I can haz else clause?',
argrepr="'I can haz else clause?'", offset=106, start_offset=106,
starts_line=False, line_number=10),
make_inst(opname='CALL', arg=1, argval=1, argrepr='', offset=108,
start_offset=108, starts_line=False, line_number=10, cache_info=[('counter', 1,
b'\x00\x00'), ('func_version', 2, b'\x00\x00\x00\x00')]),
make_inst(opname='POP_TOP', arg=None, argval=None, argrepr='', offset=116,
start_offset=116, starts_line=False, line_number=10),
make_inst(opname='LOAD_FAST_CHECK', arg=0, argval='i', argrepr='i',
offset=118, start_offset=118, starts_line=True, line_number=11, label=5),
@@ -1857,7 +1861,7 @@ def _prepare_test_cases():
make_inst(opname='JUMP_BACKWARD', arg=46, argval=118, argrepr='to L5',
offset=206, start_offset=206, starts_line=False, line_number=16,
cache_info=[('counter', 1, b'\x00\x00')]),
make_inst(opname='JUMP_FORWARD', arg=11, argval=234, argrepr='to L9',
offset=210, start_offset=210, starts_line=True, line_number=17, label=7),
make_inst(opname='LOAD_GLOBAL', arg=3, argval='print', argrepr='print +
NULL', offset=212, start_offset=212, starts_line=True, line_number=19, label=8,
cache_info=[('counter', 1, b'\x00\x00'), ('index', 1, b'\x00\x00'),
('module_keys_version', 1, b'\x00\x00'), ('builtin_keys_version', 1,
b'\x00\x00')]),
- make_inst(opname='LOAD_CONST', arg=1, argval='Who let lolcatz into this test
suite?', argrepr="'Who let lolcatz into this test suite?'", offset=222,
start_offset=222, starts_line=False, line_number=19),
+ make_inst(opname='LOAD_CONST', arg=2, argval='Who let lolcatz into this test
suite?', argrepr="'Who let lolcatz into this test suite?'", offset=222,
start_offset=222, starts_line=False, line_number=19),
make_inst(opname='CALL', arg=1, argval=1, argrepr='', offset=224,
start_offset=224, starts_line=False, line_number=19, cache_info=[('counter', 1,
b'\x00\x00'), ('func_version', 2, b'\x00\x00\x00\x00')]),
make_inst(opname='POP_TOP', arg=None, argval=None, argrepr='', offset=232,
start_offset=232, starts_line=False, line_number=19),
make_inst(opname='NOP', arg=None, argval=None, argrepr='', offset=234,
start_offset=234, starts_line=True, line_number=20, label=9),
@@ -1874,19 +1878,19 @@ def _prepare_test_cases():
make_inst(opname='CALL', arg=0, argval=0, argrepr='', offset=266,
start_offset=266, starts_line=False, line_number=25, cache_info=[('counter', 1,
b'\x00\x00'), ('func_version', 2, b'\x00\x00\x00\x00')]),
make_inst(opname='STORE_FAST', arg=1, argval='dodgy', argrepr='dodgy',
offset=274, start_offset=274, starts_line=False, line_number=25),
make_inst(opname='LOAD_GLOBAL', arg=3, argval='print', argrepr='print +
NULL', offset=276, start_offset=276, starts_line=True, line_number=26,
cache_info=[('counter', 1, b'\x00\x00'), ('index', 1, b'\x00\x00'),
('module_keys_version', 1, b'\x00\x00'), ('builtin_keys_version', 1,
b'\x00\x00')]),
- make_inst(opname='LOAD_CONST', arg=2, argval='Never reach this',
argrepr="'Never reach this'", offset=286, start_offset=286, starts_line=False,
line_number=26),
+ make_inst(opname='LOAD_CONST', arg=3, argval='Never reach this',
argrepr="'Never reach this'", offset=286, start_offset=286, starts_line=False,
line_number=26),
make_inst(opname='CALL', arg=1, argval=1, argrepr='', offset=288,
start_offset=288, starts_line=False, line_number=26, cache_info=[('counter', 1,
b'\x00\x00'), ('func_version', 2, b'\x00\x00\x00\x00')]),
make_inst(opname='POP_TOP', arg=None, argval=None, argrepr='', offset=296,
start_offset=296, starts_line=False, line_number=26),
- make_inst(opname='LOAD_CONST', arg=3, argval=None, argrepr='None',
offset=298, start_offset=298, starts_line=True, line_number=25),
- make_inst(opname='LOAD_CONST', arg=3, argval=None, argrepr='None',
offset=300, start_offset=300, starts_line=False, line_number=25),
- make_inst(opname='LOAD_CONST', arg=3, argval=None, argrepr='None',
offset=302, start_offset=302, starts_line=False, line_number=25),
+ make_inst(opname='LOAD_CONST', arg=4, argval=None, argrepr='None',
offset=298, start_offset=298, starts_line=True, line_number=25),
+ make_inst(opname='LOAD_CONST', arg=4, argval=None, argrepr='None',
offset=300, start_offset=300, starts_line=False, line_number=25),
+ make_inst(opname='LOAD_CONST', arg=4, argval=None, argrepr='None',
offset=302, start_offset=302, starts_line=False, line_number=25),
make_inst(opname='CALL', arg=3, argval=3, argrepr='', offset=304,
start_offset=304, starts_line=False, line_number=25, cache_info=[('counter', 1,
b'\x00\x00'), ('func_version', 2, b'\x00\x00\x00\x00')]),
make_inst(opname='POP_TOP', arg=None, argval=None, argrepr='', offset=312,
start_offset=312, starts_line=False, line_number=25),
make_inst(opname='LOAD_GLOBAL', arg=3, argval='print', argrepr='print +
NULL', offset=314, start_offset=314, starts_line=True, line_number=28,
label=10, cache_info=[('counter', 1, b'\x00\x00'), ('index', 1, b'\x00\x00'),
('module_keys_version', 1, b'\x00\x00'), ('builtin_keys_version', 1,
b'\x00\x00')]),
- make_inst(opname='LOAD_CONST', arg=5, argval="OK, now we're done",
argrepr='"OK, now we\'re done"', offset=324, start_offset=324,
starts_line=False, line_number=28),
+ make_inst(opname='LOAD_CONST', arg=6, argval="OK, now we're done",
argrepr='"OK, now we\'re done"', offset=324, start_offset=324,
starts_line=False, line_number=28),
make_inst(opname='CALL', arg=1, argval=1, argrepr='', offset=326,
start_offset=326, starts_line=False, line_number=28, cache_info=[('counter', 1,
b'\x00\x00'), ('func_version', 2, b'\x00\x00\x00\x00')]),
make_inst(opname='POP_TOP', arg=None, argval=None, argrepr='', offset=334,
start_offset=334, starts_line=False, line_number=28),
- make_inst(opname='LOAD_CONST', arg=3, argval=None, argrepr='None',
offset=336, start_offset=336, starts_line=False, line_number=28),
+ make_inst(opname='LOAD_CONST', arg=4, argval=None, argrepr='None',
offset=336, start_offset=336, starts_line=False, line_number=28),
make_inst(opname='RETURN_VALUE', arg=None, argval=None, argrepr='',
offset=338, start_offset=338, starts_line=False, line_number=28),
make_inst(opname='PUSH_EXC_INFO', arg=None, argval=None, argrepr='',
offset=340, start_offset=340, starts_line=True, line_number=25),
make_inst(opname='WITH_EXCEPT_START', arg=None, argval=None, argrepr='',
offset=342, start_offset=342, starts_line=False, line_number=25),
@@ -1910,7 +1914,7 @@ def _prepare_test_cases():
make_inst(opname='NOT_TAKEN', arg=None, argval=None, argrepr='', offset=396,
start_offset=396, starts_line=False, line_number=22),
make_inst(opname='POP_TOP', arg=None, argval=None, argrepr='', offset=398,
start_offset=398, starts_line=False, line_number=22),
make_inst(opname='LOAD_GLOBAL', arg=3, argval='print', argrepr='print +
NULL', offset=400, start_offset=400, starts_line=True, line_number=23,
cache_info=[('counter', 1, b'\x00\x00'), ('index', 1, b'\x00\x00'),
('module_keys_version', 1, b'\x00\x00'), ('builtin_keys_version', 1,
b'\x00\x00')]),
- make_inst(opname='LOAD_CONST', arg=4, argval='Here we go, here we go, here
we go...', argrepr="'Here we go, here we go, here we go...'", offset=410,
start_offset=410, starts_line=False, line_number=23),
+ make_inst(opname='LOAD_CONST', arg=5, argval='Here we go, here we go, here
we go...', argrepr="'Here we go, here we go, here we go...'", offset=410,
start_offset=410, starts_line=False, line_number=23),
make_inst(opname='CALL', arg=1, argval=1, argrepr='', offset=412,
start_offset=412, starts_line=False, line_number=23, cache_info=[('counter', 1,
b'\x00\x00'), ('func_version', 2, b'\x00\x00\x00\x00')]),
make_inst(opname='POP_TOP', arg=None, argval=None, argrepr='', offset=420,
start_offset=420, starts_line=False, line_number=23),
make_inst(opname='POP_EXCEPT', arg=None, argval=None, argrepr='',
offset=422, start_offset=422, starts_line=False, line_number=23),
@@ -1921,7 +1925,7 @@ def _prepare_test_cases():
make_inst(opname='RERAISE', arg=1, argval=1, argrepr='', offset=432,
start_offset=432, starts_line=False, line_number=None),
make_inst(opname='PUSH_EXC_INFO', arg=None, argval=None, argrepr='',
offset=434, start_offset=434, starts_line=False, line_number=None),
make_inst(opname='LOAD_GLOBAL', arg=3, argval='print', argrepr='print +
NULL', offset=436, start_offset=436, starts_line=True, line_number=28,
cache_info=[('counter', 1, b'\x00\x00'), ('index', 1, b'\x00\x00'),
('module_keys_version', 1, b'\x00\x00'), ('builtin_keys_version', 1,
b'\x00\x00')]),
- make_inst(opname='LOAD_CONST', arg=5, argval="OK, now we're done",
argrepr='"OK, now we\'re done"', offset=446, start_offset=446,
starts_line=False, line_number=28),
+ make_inst(opname='LOAD_CONST', arg=6, argval="OK, now we're done",
argrepr='"OK, now we\'re done"', offset=446, start_offset=446,
starts_line=False, line_number=28),
make_inst(opname='CALL', arg=1, argval=1, argrepr='', offset=448,
start_offset=448, starts_line=False, line_number=28, cache_info=[('counter', 1,
b'\x00\x00'), ('func_version', 2, b'\x00\x00\x00\x00')]),
make_inst(opname='POP_TOP', arg=None, argval=None, argrepr='', offset=456,
start_offset=456, starts_line=False, line_number=28),
make_inst(opname='RERAISE', arg=0, argval=0, argrepr='', offset=458,
start_offset=458, starts_line=False, line_number=28),
diff --git a/Lib/test/test_peepholer.py b/Lib/test/test_peepholer.py
index 98f6b29dc7fc5e..4644641144bee5 100644
--- a/Lib/test/test_peepholer.py
+++ b/Lib/test/test_peepholer.py
@@ -1207,16 +1207,16 @@ def
test_conditional_jump_forward_non_const_condition(self):
expected_insts = [
('LOAD_NAME', 1, 11),
('POP_JUMP_IF_TRUE', lbl := self.Label(), 12),
- ('LOAD_CONST', 1, 13),
+ ('LOAD_SMALL_INT', 2, 13),
('RETURN_VALUE', None, 13),
lbl,
- ('LOAD_CONST', 2, 14),
+ ('LOAD_SMALL_INT', 3, 14),
('RETURN_VALUE', None, 14),
]
self.cfg_optimization_test(insts,
expected_insts,
consts=[0, 1, 2, 3, 4],
- expected_consts=[0, 2, 3])
+ expected_consts=[0])
def test_list_exceeding_stack_use_guideline(self):
def f():
@@ -2157,13 +2157,13 @@ def test_conditional_jump_forward_const_condition(self):
expected_insts = [
('NOP', None, 11),
('NOP', None, 12),
- ('LOAD_CONST', 1, 14),
+ ('LOAD_SMALL_INT', 3, 14),
('RETURN_VALUE', None, 14),
]
self.cfg_optimization_test(insts,
expected_insts,
consts=[0, 1, 2, 3, 4],
- expected_consts=[0, 3])
+ expected_consts=[0])
def test_conditional_jump_backward_non_const_condition(self):
insts = [
@@ -2210,10 +2210,10 @@ def test_except_handler_label(self):
]
expected_insts = [
('SETUP_FINALLY', handler := self.Label(), 10),
- ('LOAD_CONST', 1, 11),
+ ('LOAD_SMALL_INT', 1, 11),
('RETURN_VALUE', None, 11),
handler,
- ('LOAD_CONST', 2, 12),
+ ('LOAD_SMALL_INT', 2, 12),
('RETURN_VALUE', None, 12),
]
self.cfg_optimization_test(insts, expected_insts,
consts=list(range(5)))
@@ -2232,12 +2232,12 @@ def test_no_unsafe_static_swap(self):
('RETURN_VALUE', None, 5)
]
expected_insts = [
- ('LOAD_CONST', 0, 1),
- ('LOAD_CONST', 1, 2),
+ ('LOAD_SMALL_INT', 0, 1),
+ ('LOAD_SMALL_INT', 1, 2),
('NOP', None, 3),
('STORE_FAST', 1, 4),
('POP_TOP', None, 4),
- ('LOAD_CONST', 0, 5),
+ ('LOAD_SMALL_INT', 0, 5),
('RETURN_VALUE', None, 5)
]
self.cfg_optimization_test(insts, expected_insts,
consts=list(range(3)), nlocals=1)
@@ -2254,12 +2254,12 @@ def test_dead_store_elimination_in_same_lineno(self):
('RETURN_VALUE', None, 5)
]
expected_insts = [
- ('LOAD_CONST', 0, 1),
- ('LOAD_CONST', 1, 2),
+ ('LOAD_SMALL_INT', 0, 1),
+ ('LOAD_SMALL_INT', 1, 2),
('NOP', None, 3),
('POP_TOP', None, 4),
('STORE_FAST', 1, 4),
- ('LOAD_CONST', 0, 5),
+ ('LOAD_SMALL_INT', 0, 5),
('RETURN_VALUE', None, 5)
]
self.cfg_optimization_test(insts, expected_insts,
consts=list(range(3)), nlocals=1)
@@ -2276,13 +2276,13 @@ def
test_no_dead_store_elimination_in_different_lineno(self):
('RETURN_VALUE', None, 5)
]
expected_insts = [
- ('LOAD_CONST', 0, 1),
- ('LOAD_CONST', 1, 2),
- ('LOAD_CONST', 2, 3),
+ ('LOAD_SMALL_INT', 0, 1),
+ ('LOAD_SMALL_INT', 1, 2),
+ ('LOAD_SMALL_INT', 2, 3),
('STORE_FAST', 1, 4),
('STORE_FAST', 1, 5),
('STORE_FAST', 1, 6),
- ('LOAD_CONST', 0, 5),
+ ('LOAD_SMALL_INT', 0, 5),
('RETURN_VALUE', None, 5)
]
self.cfg_optimization_test(insts, expected_insts,
consts=list(range(3)), nlocals=1)
diff --git a/Programs/test_frozenmain.h b/Programs/test_frozenmain.h
index 55bf4fe26e967a..1c7f74cc8039f2 100644
--- a/Programs/test_frozenmain.h
+++ b/Programs/test_frozenmain.h
@@ -1,38 +1,39 @@
// Auto-generated by Programs/freeze_test_frozenmain.py
unsigned char M_test_frozenmain[] = {
227,0,0,0,0,0,0,0,0,0,0,0,0,9,0,0,
- 0,0,0,0,0,243,184,0,0,0,128,0,90,0,80,0,
- 71,0,112,0,90,0,80,0,71,1,112,1,89,2,32,0,
- 80,1,50,1,0,0,0,0,0,0,30,0,89,2,32,0,
- 80,2,89,0,78,6,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,243,184,0,0,0,128,0,90,0,80,1,
+ 71,0,112,0,90,0,80,1,71,1,112,1,89,2,32,0,
+ 80,2,50,1,0,0,0,0,0,0,30,0,89,2,32,0,
+ 80,3,89,0,78,6,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,50,2,0,0,0,0,0,0,
30,0,89,1,78,8,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,32,0,50,0,0,0,0,0,
- 0,0,80,3,43,26,0,0,0,0,0,0,0,0,0,0,
- 112,5,80,4,15,0,68,24,0,0,112,6,89,2,32,0,
- 80,5,89,6,11,0,80,6,89,5,89,6,43,26,0,0,
+ 0,0,80,4,43,26,0,0,0,0,0,0,0,0,0,0,
+ 112,5,80,5,15,0,68,24,0,0,112,6,89,2,32,0,
+ 80,6,89,6,11,0,80,7,89,5,89,6,43,26,0,0,
0,0,0,0,0,0,0,0,11,0,48,4,50,1,0,0,
- 0,0,0,0,30,0,73,26,0,0,8,0,29,0,80,0,
- 34,0,41,7,78,122,18,70,114,111,122,101,110,32,72,101,
- 108,108,111,32,87,111,114,108,100,122,8,115,121,115,46,97,
- 114,103,118,218,6,99,111,110,102,105,103,41,5,218,12,112,
- 114,111,103,114,97,109,95,110,97,109,101,218,10,101,120,101,
- 99,117,116,97,98,108,101,218,15,117,115,101,95,101,110,118,
- 105,114,111,110,109,101,110,116,218,17,99,111,110,102,105,103,
- 117,114,101,95,99,95,115,116,100,105,111,218,14,98,117,102,
- 102,101,114,101,100,95,115,116,100,105,111,122,7,99,111,110,
- 102,105,103,32,122,2,58,32,41,7,218,3,115,121,115,218,
- 17,95,116,101,115,116,105,110,116,101,114,110,97,108,99,97,
- 112,105,218,5,112,114,105,110,116,218,4,97,114,103,118,218,
- 11,103,101,116,95,99,111,110,102,105,103,115,114,2,0,0,
- 0,218,3,107,101,121,169,0,243,0,0,0,0,218,18,116,
- 101,115,116,95,102,114,111,122,101,110,109,97,105,110,46,112,
- 121,218,8,60,109,111,100,117,108,101,62,114,17,0,0,0,
- 1,0,0,0,115,94,0,0,0,240,3,1,1,1,243,8,
- 0,1,11,219,0,24,225,0,5,208,6,26,212,0,27,217,
- 0,5,128,106,144,35,151,40,145,40,212,0,27,216,9,26,
- 215,9,38,210,9,38,211,9,40,168,24,213,9,50,128,6,
- 243,2,6,12,2,128,67,241,14,0,5,10,136,71,144,67,
- 144,53,152,2,152,54,160,35,157,59,152,45,208,10,40,214,
- 4,41,243,15,6,12,2,114,15,0,0,0,
+ 0,0,0,0,30,0,73,26,0,0,8,0,29,0,80,1,
+ 34,0,41,8,233,0,0,0,0,78,122,18,70,114,111,122,
+ 101,110,32,72,101,108,108,111,32,87,111,114,108,100,122,8,
+ 115,121,115,46,97,114,103,118,218,6,99,111,110,102,105,103,
+ 41,5,218,12,112,114,111,103,114,97,109,95,110,97,109,101,
+ 218,10,101,120,101,99,117,116,97,98,108,101,218,15,117,115,
+ 101,95,101,110,118,105,114,111,110,109,101,110,116,218,17,99,
+ 111,110,102,105,103,117,114,101,95,99,95,115,116,100,105,111,
+ 218,14,98,117,102,102,101,114,101,100,95,115,116,100,105,111,
+ 122,7,99,111,110,102,105,103,32,122,2,58,32,41,7,218,
+ 3,115,121,115,218,17,95,116,101,115,116,105,110,116,101,114,
+ 110,97,108,99,97,112,105,218,5,112,114,105,110,116,218,4,
+ 97,114,103,118,218,11,103,101,116,95,99,111,110,102,105,103,
+ 115,114,3,0,0,0,218,3,107,101,121,169,0,243,0,0,
+ 0,0,218,18,116,101,115,116,95,102,114,111,122,101,110,109,
+ 97,105,110,46,112,121,218,8,60,109,111,100,117,108,101,62,
+ 114,18,0,0,0,1,0,0,0,115,94,0,0,0,240,3,
+ 1,1,1,243,8,0,1,11,219,0,24,225,0,5,208,6,
+ 26,212,0,27,217,0,5,128,106,144,35,151,40,145,40,212,
+ 0,27,216,9,26,215,9,38,210,9,38,211,9,40,168,24,
+ 213,9,50,128,6,243,2,6,12,2,128,67,241,14,0,5,
+ 10,136,71,144,67,144,53,152,2,152,54,160,35,157,59,152,
+ 45,208,10,40,214,4,41,243,15,6,12,2,114,16,0,0,
+ 0,
};
diff --git a/Python/codegen.c b/Python/codegen.c
index a3eca2a6580c8e..a049417033046d 100644
--- a/Python/codegen.c
+++ b/Python/codegen.c
@@ -282,14 +282,6 @@ codegen_addop_noarg(instr_sequence *seq, int opcode,
location loc)
static int
codegen_addop_load_const(compiler *c, location loc, PyObject *o)
{
- if (PyLong_CheckExact(o)) {
- int overflow;
- long val = PyLong_AsLongAndOverflow(o, &overflow);
- if (!overflow && _PY_IS_SMALL_INT(val)) {
- ADDOP_I(c, loc, LOAD_SMALL_INT, val);
- return SUCCESS;
- }
- }
Py_ssize_t arg = _PyCompile_AddConst(c, o);
if (arg < 0) {
return ERROR;
diff --git a/Python/flowgraph.c b/Python/flowgraph.c
index c8470aa2cc7a53..8154129090b222 100644
--- a/Python/flowgraph.c
+++ b/Python/flowgraph.c
@@ -1297,6 +1297,7 @@ loads_const(int opcode)
return OPCODE_HAS_CONST(opcode) || opcode == LOAD_SMALL_INT;
}
+/* Returns new reference */
static PyObject*
get_const_value(int opcode, int oparg, PyObject *co_consts)
{
@@ -1390,20 +1391,44 @@ nop_out(cfg_instr **instrs, int size)
}
}
-/* Steals reference to "newconst" */
+/* Does not steal reference to "newconst".
+ Return 1 if changed instruction to LOAD_SMALL_INT.
+ Return 0 if could not change instruction to LOAD_SMALL_INT.
+ Return -1 on error.
+*/
static int
-instr_make_load_const(cfg_instr *instr, PyObject *newconst,
- PyObject *consts, PyObject *const_cache)
+maybe_instr_make_load_smallint(cfg_instr *instr, PyObject *newconst,
+ PyObject *consts, PyObject *const_cache)
{
if (PyLong_CheckExact(newconst)) {
int overflow;
long val = PyLong_AsLongAndOverflow(newconst, &overflow);
+ if (val == -1 && PyErr_Occurred()) {
+ return -1;
+ }
if (!overflow && _PY_IS_SMALL_INT(val)) {
assert(_Py_IsImmortal(newconst));
INSTR_SET_OP1(instr, LOAD_SMALL_INT, (int)val);
- return SUCCESS;
+ return 1;
}
}
+ return 0;
+}
+
+
+/* Steals reference to "newconst" */
+static int
+instr_make_load_const(cfg_instr *instr, PyObject *newconst,
+ PyObject *consts, PyObject *const_cache)
+{
+ int res = maybe_instr_make_load_smallint(instr, newconst, consts,
const_cache);
+ if (res < 0) {
+ Py_DECREF(newconst);
+ return ERROR;
+ }
+ if (res > 0) {
+ return SUCCESS;
+ }
int oparg = add_const(newconst, consts, const_cache);
RETURN_IF_ERROR(oparg);
INSTR_SET_OP1(instr, LOAD_CONST, oparg);
@@ -2042,6 +2067,14 @@ basicblock_optimize_load_const(PyObject *const_cache,
basicblock *bb, PyObject *
int oparg = 0;
for (int i = 0; i < bb->b_iused; i++) {
cfg_instr *inst = &bb->b_instr[i];
+ if (inst->i_opcode == LOAD_CONST) {
+ PyObject *constant = get_const_value(inst->i_opcode,
inst->i_oparg, consts);
+ int res = maybe_instr_make_load_smallint(inst, constant, consts,
const_cache);
+ Py_DECREF(constant);
+ if (res < 0) {
+ return ERROR;
+ }
+ }
bool is_copy_of_load_const = (opcode == LOAD_CONST &&
inst->i_opcode == COPY &&
inst->i_oparg == 1);
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