Construct GlobalVariableAccess

Performance Diagrams

Source Code with Construct

module_value1 = 1000
module_value2 = 2000

def calledRepeatedly():
    module_value1
# construct_begin
    return module_value2
# construct_alternative



import itertools
for x in itertools.repeat(None, 50000):
    calledRepeatedly()

print("OK.")

Source Code without Construct

module_value1 = 1000
module_value2 = 2000

def calledRepeatedly():
    module_value1
# construct_begin

# construct_alternative
    return None
# construct_end

import itertools
for x in itertools.repeat(None, 50000):
    calledRepeatedly()

print("OK.")

Context Diff of Source Code

	Construct			Baseline
	22	module_value2 = 2000		22	module_value2 = 2000
	23			23
	24	def calledRepeatedly():		24	def calledRepeatedly():
	25	module_value1		25	module_value1
	26	# construct_begin		26	# construct_begin
n	27	return module_value2	n	27
	28	# construct_alternative		28	# construct_alternative
t	29		t	29	return None
	30			30	# construct_end
	31			31
	32	import itertools		32	import itertools
	33	for x in itertools.repeat(None, 50000):		33	for x in itertools.repeat(None, 50000):
	34	calledRepeatedly()		34	calledRepeatedly()
	35			35

Context Diff of Generated Code

	Construct			Baseline
	58	static bool constants_created = false;		58	static bool constants_created = false;
	59			59
	60	/* Function to create module private constants. */		60	/* Function to create module private constants. */
	61	static void createModuleConstants( void )		61	static void createModuleConstants( void )
	62	{		62	{
n	63	const_str_plain_itertools = UNSTREAM_STRING_ASCII( &constant_bin[ 108 ], 9, 1 );	n	63	const_str_plain_itertools = UNSTREAM_STRING_ASCII( &constant_bin[ 73 ], 9, 1 );
	64	const_str_digest_aff51d481e7337ea9fd2fd65a704b9b8 = UNSTREAM_STRING_ASCII( &constant_bin[ 117 ], 45, 0 );		64	const_str_digest_aff51d481e7337ea9fd2fd65a704b9b8 = UNSTREAM_STRING_ASCII( &constant_bin[ 82 ], 45, 0 );
	65	const_int_pos_50000 = PyLong_FromUnsignedLong(50000ul);		65	const_int_pos_50000 = PyLong_FromUnsignedLong(50000ul);
	66	const_int_pos_2000 = PyLong_FromUnsignedLong(2000ul);		66	const_int_pos_2000 = PyLong_FromUnsignedLong(2000ul);
n	67	const_str_plain_module_value2 = UNSTREAM_STRING_ASCII( &constant_bin[ 41 ], 13, 1 );	n	67	const_str_plain_module_value2 = UNSTREAM_STRING_ASCII( &constant_bin[ 127 ], 13, 1 );
	68	const_tuple_str_digest_5ed1392909ad16e6227b8230f4582352_tuple = PyTuple_New( 1 );		68	const_tuple_str_digest_5ed1392909ad16e6227b8230f4582352_tuple = PyTuple_New( 1 );
n	69	const_str_digest_5ed1392909ad16e6227b8230f4582352 = UNSTREAM_STRING_ASCII( &constant_bin[ 162 ], 3, 0 );	n	69	const_str_digest_5ed1392909ad16e6227b8230f4582352 = UNSTREAM_STRING_ASCII( &constant_bin[ 140 ], 3, 0 );
	70	PyTuple_SET_ITEM( const_tuple_str_digest_5ed1392909ad16e6227b8230f4582352_tuple, 0, const_str_digest_5ed1392909ad16e6227b8230f4582352 ); Py_INCREF(const_str_digest_5ed1392909ad16e6227b8230f4582352);		70	PyTuple_SET_ITEM( const_tuple_str_digest_5ed1392909ad16e6227b8230f4582352_tuple, 0, const_str_digest_5ed1392909ad16e6227b8230f4582352 ); Py_INCREF(const_str_digest_5ed1392909ad16e6227b8230f4582352);
	71	const_int_pos_1000 = PyLong_FromUnsignedLong(1000ul);		71	const_int_pos_1000 = PyLong_FromUnsignedLong(1000ul);
	72	const_str_plain_module_value1 = UNSTREAM_STRING_ASCII( &constant_bin[ 6 ], 13, 1 );		72	const_str_plain_module_value1 = UNSTREAM_STRING_ASCII( &constant_bin[ 6 ], 13, 1 );
n	73	const_str_plain_calledRepeatedly = UNSTREAM_STRING_ASCII( &constant_bin[ 76 ], 16, 1 );	n	73	const_str_plain_calledRepeatedly = UNSTREAM_STRING_ASCII( &constant_bin[ 41 ], 16, 1 );
	74	const_str_angle_module = UNSTREAM_STRING_ASCII( &constant_bin[ 165 ], 8, 0 );		74	const_str_angle_module = UNSTREAM_STRING_ASCII( &constant_bin[ 143 ], 8, 0 );
	75	const_str_plain_None = UNSTREAM_STRING_ASCII( &constant_bin[ 173 ], 4, 1 );		75	const_str_plain_None = UNSTREAM_STRING_ASCII( &constant_bin[ 151 ], 4, 1 );
	76	const_str_plain_x = UNSTREAM_STRING_ASCII( &constant_bin[ 177 ], 1, 1 );		76	const_str_plain_x = UNSTREAM_STRING_ASCII( &constant_bin[ 155 ], 1, 1 );
	77	const_str_plain_repeat = UNSTREAM_STRING_ASCII( &constant_bin[ 178 ], 6, 1 );		77	const_str_plain_repeat = UNSTREAM_STRING_ASCII( &constant_bin[ 156 ], 6, 1 );
	78	const_tuple_none_int_pos_50000_tuple = PyTuple_New( 2 );		78	const_tuple_none_int_pos_50000_tuple = PyTuple_New( 2 );
	79	PyTuple_SET_ITEM( const_tuple_none_int_pos_50000_tuple, 0, Py_None ); Py_INCREF(Py_None);		79	PyTuple_SET_ITEM( const_tuple_none_int_pos_50000_tuple, 0, Py_None ); Py_INCREF(Py_None);
	80	PyTuple_SET_ITEM( const_tuple_none_int_pos_50000_tuple, 1, const_int_pos_50000 ); Py_INCREF(const_int_pos_50000);		80	PyTuple_SET_ITEM( const_tuple_none_int_pos_50000_tuple, 1, const_int_pos_50000 ); Py_INCREF(const_int_pos_50000);
	81			81
	82	constants_created = true;		82	constants_created = true;
	123	NUITKA_MAY_BE_UNUSED char const *type_description_1 = NULL;		123	NUITKA_MAY_BE_UNUSED char const *type_description_1 = NULL;
	124	PyObject *exception_type = NULL;		124	PyObject *exception_type = NULL;
	125	PyObject *exception_value = NULL;		125	PyObject *exception_value = NULL;
	126	PyTracebackObject *exception_tb = NULL;		126	PyTracebackObject *exception_tb = NULL;
	127	NUITKA_MAY_BE_UNUSED int exception_lineno = 0;		127	NUITKA_MAY_BE_UNUSED int exception_lineno = 0;
n			n	128	static struct Nuitka_FrameObject *cache_frame_f8b70bbf8c13dbfada5f17ac872dcdcd = NULL;
	128	PyObject *tmp_return_value = NULL;		129	PyObject *tmp_return_value = NULL;
n	129	static struct Nuitka_FrameObject *cache_frame_f8b70bbf8c13dbfada5f17ac872dcdcd = NULL;	n
	130			130
	131	// Actual function body.		131	// Actual function body.
	132	MAKE_OR_REUSE_FRAME(cache_frame_f8b70bbf8c13dbfada5f17ac872dcdcd, codeobj_f8b70bbf8c13dbfada5f17ac872dcdcd, module___main__, 0);		132	MAKE_OR_REUSE_FRAME(cache_frame_f8b70bbf8c13dbfada5f17ac872dcdcd, codeobj_f8b70bbf8c13dbfada5f17ac872dcdcd, module___main__, 0);
	133	frame_f8b70bbf8c13dbfada5f17ac872dcdcd = cache_frame_f8b70bbf8c13dbfada5f17ac872dcdcd;		133	frame_f8b70bbf8c13dbfada5f17ac872dcdcd = cache_frame_f8b70bbf8c13dbfada5f17ac872dcdcd;
	134			134
	161			161
	162	goto frame_exception_exit_1;		162	goto frame_exception_exit_1;
	163	}		163	}
	164			164
	165	}		165	}
n	166	{	n
	167	PyObject *tmp_mvar_value_2;
	168	tmp_mvar_value_2 = GET_STRING_DICT_VALUE(moduledict___main__, (Nuitka_StringObject *)const_str_plain_module_value2);
	169
	170	if (unlikely( tmp_mvar_value_2 == NULL )) {
	171	tmp_mvar_value_2 = GET_STRING_DICT_VALUE(dict_builtin, (Nuitka_StringObject *)const_str_plain_module_value2);
	172	}
	173
	174	if ( tmp_mvar_value_2 == NULL )
	175	{
	176
	177	exception_type = PyExc_NameError;
	178	Py_INCREF(exception_type);
	179	exception_value = UNSTREAM_STRING( &constant_bin[ 35 ], 35, 0 );
	180	exception_tb = NULL;
	181	NORMALIZE_EXCEPTION( &exception_type, &exception_value, &exception_tb );
	182	CHAIN_EXCEPTION( exception_value );
	183
	184	exception_lineno = 27;
	185
	186	goto frame_exception_exit_1;
	187	}
	188
	189	tmp_return_value = tmp_mvar_value_2;
	190	Py_INCREF(tmp_return_value);
	191	goto frame_return_exit_1;
	192	}
	193			166
	194	#if 0		167	#if 0
	195	RESTORE_FRAME_EXCEPTION(frame_f8b70bbf8c13dbfada5f17ac872dcdcd);		168	RESTORE_FRAME_EXCEPTION(frame_f8b70bbf8c13dbfada5f17ac872dcdcd);
	196	#endif		169	#endif
	197			170
	198	// Put the previous frame back on top.		171	// Put the previous frame back on top.
	199	popFrameStack();		172	popFrameStack();
	200			173
	201	goto frame_no_exception_1;		174	goto frame_no_exception_1;
n	202		n
	203	frame_return_exit_1:;
	204	#if 0
	205	RESTORE_FRAME_EXCEPTION(frame_f8b70bbf8c13dbfada5f17ac872dcdcd);
	206	#endif
	207
	208	// Put the previous frame back on top.
	209	popFrameStack();
	210
	211	goto function_return_exit;
	212			175
	213	frame_exception_exit_1:;		176	frame_exception_exit_1:;
	214			177
	215	#if 0		178	#if 0
	216	RESTORE_FRAME_EXCEPTION(frame_f8b70bbf8c13dbfada5f17ac872dcdcd);		179	RESTORE_FRAME_EXCEPTION(frame_f8b70bbf8c13dbfada5f17ac872dcdcd);
	243			206
	244	// Return the error.		207	// Return the error.
	245	goto function_exception_exit;		208	goto function_exception_exit;
	246			209
	247	frame_no_exception_1:;		210	frame_no_exception_1:;
n			n	211	tmp_return_value = Py_None;
				212	Py_INCREF(tmp_return_value);
				213	goto function_return_exit;
	248			214
	249	// Return statement must have exited already.		215	// Return statement must have exited already.
	250	NUITKA_CANNOT_GET_HERE(__main__$$$function_1_calledRepeatedly);		216	NUITKA_CANNOT_GET_HERE(__main__$$$function_1_calledRepeatedly);
	251	return NULL;		217	return NULL;
	252			218
	728	if ( tmp_mvar_value_2 == NULL )		694	if ( tmp_mvar_value_2 == NULL )
	729	{		695	{
	730			696
	731	exception_type = PyExc_NameError;		697	exception_type = PyExc_NameError;
	732	Py_INCREF(exception_type);		698	Py_INCREF(exception_type);
t	733	exception_value = UNSTREAM_STRING( &constant_bin[ 70 ], 38, 0 );	t	699	exception_value = UNSTREAM_STRING( &constant_bin[ 35 ], 38, 0 );
	734	exception_tb = NULL;		700	exception_tb = NULL;
	735	NORMALIZE_EXCEPTION( &exception_type, &exception_value, &exception_tb );		701	NORMALIZE_EXCEPTION( &exception_type, &exception_value, &exception_tb );
	736	CHAIN_EXCEPTION( exception_value );		702	CHAIN_EXCEPTION( exception_value );
	737			703
	738	exception_lineno = 34;		704	exception_lineno = 34;