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
	62	const_str_plain_module_value1 = UNSTREAM_STRING_ASCII(&constant_bin[ 6 ], 13, 1);		62	const_str_plain_module_value1 = UNSTREAM_STRING_ASCII(&constant_bin[ 6 ], 13, 1);
	63	const_tuple_none_int_pos_50000_tuple = PyTuple_New(2);		63	const_tuple_none_int_pos_50000_tuple = PyTuple_New(2);
	64	PyTuple_SET_ITEM(const_tuple_none_int_pos_50000_tuple, 0, Py_None); Py_INCREF(Py_None);		64	PyTuple_SET_ITEM(const_tuple_none_int_pos_50000_tuple, 0, Py_None); Py_INCREF(Py_None);
	65	const_int_pos_50000 = PyLong_FromUnsignedLong(50000ul);		65	const_int_pos_50000 = PyLong_FromUnsignedLong(50000ul);
	66	PyTuple_SET_ITEM(const_tuple_none_int_pos_50000_tuple, 1, const_int_pos_50000); Py_INCREF(const_int_pos_50000);		66	PyTuple_SET_ITEM(const_tuple_none_int_pos_50000_tuple, 1, const_int_pos_50000); Py_INCREF(const_int_pos_50000);
n	67	const_str_digest_a20fc139d51123118d540a7679d0423d = UNSTREAM_STRING_ASCII(&constant_bin[ 108 ], 45, 0);	n	67	const_str_digest_a20fc139d51123118d540a7679d0423d = UNSTREAM_STRING_ASCII(&constant_bin[ 73 ], 45, 0);
	68	const_int_pos_2000 = PyLong_FromUnsignedLong(2000ul);		68	const_int_pos_2000 = PyLong_FromUnsignedLong(2000ul);
n	69	const_str_plain_calledRepeatedly = UNSTREAM_STRING_ASCII(&constant_bin[ 76 ], 16, 1);	n	69	const_str_plain_calledRepeatedly = UNSTREAM_STRING_ASCII(&constant_bin[ 41 ], 16, 1);
	70	const_str_plain_itertools = UNSTREAM_STRING_ASCII(&constant_bin[ 153 ], 9, 1);		70	const_str_plain_itertools = UNSTREAM_STRING_ASCII(&constant_bin[ 118 ], 9, 1);
	71	const_str_angle_module = UNSTREAM_STRING_ASCII(&constant_bin[ 162 ], 8, 0);		71	const_str_angle_module = UNSTREAM_STRING_ASCII(&constant_bin[ 127 ], 8, 0);
	72	const_str_plain_x = UNSTREAM_STRING_ASCII(&constant_bin[ 170 ], 1, 1);		72	const_str_plain_x = UNSTREAM_STRING_ASCII(&constant_bin[ 135 ], 1, 1);
	73	const_str_digest_5ed1392909ad16e6227b8230f4582352 = UNSTREAM_STRING_ASCII(&constant_bin[ 171 ], 3, 0);		73	const_str_digest_5ed1392909ad16e6227b8230f4582352 = UNSTREAM_STRING_ASCII(&constant_bin[ 136 ], 3, 0);
	74	const_str_plain_module_value2 = UNSTREAM_STRING_ASCII(&constant_bin[ 41 ], 13, 1);		74	const_str_plain_module_value2 = UNSTREAM_STRING_ASCII(&constant_bin[ 139 ], 13, 1);
	75	const_str_plain_repeat = UNSTREAM_STRING_ASCII(&constant_bin[ 174 ], 6, 1);		75	const_str_plain_repeat = UNSTREAM_STRING_ASCII(&constant_bin[ 152 ], 6, 1);
	76	const_int_pos_1000 = PyLong_FromUnsignedLong(1000ul);		76	const_int_pos_1000 = PyLong_FromUnsignedLong(1000ul);
	77			77
	78	constants_created = true;		78	constants_created = true;
	79	}		79	}
	80			80
	117	NUITKA_MAY_BE_UNUSED nuitka_void tmp_unused;		117	NUITKA_MAY_BE_UNUSED nuitka_void tmp_unused;
	118	PyObject *exception_type = NULL;		118	PyObject *exception_type = NULL;
	119	PyObject *exception_value = NULL;		119	PyObject *exception_value = NULL;
	120	PyTracebackObject *exception_tb = NULL;		120	PyTracebackObject *exception_tb = NULL;
	121	NUITKA_MAY_BE_UNUSED int exception_lineno = 0;		121	NUITKA_MAY_BE_UNUSED int exception_lineno = 0;
n			n	122	static struct Nuitka_FrameObject *cache_frame_c70a468c56daeb9f3b4c8fe8a69e121d = NULL;
	122	PyObject *tmp_return_value = NULL;		123	PyObject *tmp_return_value = NULL;
n	123	static struct Nuitka_FrameObject *cache_frame_c70a468c56daeb9f3b4c8fe8a69e121d = NULL;	n
	124			124
	125	// Actual function body.		125	// Actual function body.
	126	if (isFrameUnusable(cache_frame_c70a468c56daeb9f3b4c8fe8a69e121d)) {		126	if (isFrameUnusable(cache_frame_c70a468c56daeb9f3b4c8fe8a69e121d)) {
	127	Py_XDECREF(cache_frame_c70a468c56daeb9f3b4c8fe8a69e121d);		127	Py_XDECREF(cache_frame_c70a468c56daeb9f3b4c8fe8a69e121d);
	128			128
	171			171
	172	goto frame_exception_exit_1;		172	goto frame_exception_exit_1;
	173	}		173	}
	174			174
	175	}		175	}
n	176	{	n
	177	PyObject *tmp_mvar_value_2;
	178	tmp_mvar_value_2 = GET_STRING_DICT_VALUE(moduledict___main__, (Nuitka_StringObject *)const_str_plain_module_value2);
	179
	180	if (unlikely(tmp_mvar_value_2 == NULL)) {
	181	tmp_mvar_value_2 = GET_STRING_DICT_VALUE(dict_builtin, (Nuitka_StringObject *)const_str_plain_module_value2);
	182	}
	183
	184	if (tmp_mvar_value_2 == NULL) {
	185
	186	exception_type = PyExc_NameError;
	187	Py_INCREF(exception_type);
	188	exception_value = UNSTREAM_STRING(&constant_bin[ 35 ], 35, 0);
	189	exception_tb = NULL;
	190	NORMALIZE_EXCEPTION(&exception_type, &exception_value, &exception_tb);
	191	CHAIN_EXCEPTION(exception_value);
	192
	193	exception_lineno = 27;
	194
	195	goto frame_exception_exit_1;
	196	}
	197
	198	tmp_return_value = tmp_mvar_value_2;
	199	Py_INCREF(tmp_return_value);
	200	goto frame_return_exit_1;
	201	}
	202			176
	203	#if 0		177	#if 0
	204	RESTORE_FRAME_EXCEPTION(frame_c70a468c56daeb9f3b4c8fe8a69e121d);		178	RESTORE_FRAME_EXCEPTION(frame_c70a468c56daeb9f3b4c8fe8a69e121d);
	205	#endif		179	#endif
	206			180
	207	// Put the previous frame back on top.		181	// Put the previous frame back on top.
	208	popFrameStack();		182	popFrameStack();
	209			183
	210	goto frame_no_exception_1;		184	goto frame_no_exception_1;
n	211		n
	212	frame_return_exit_1:;
	213	#if 0
	214	RESTORE_FRAME_EXCEPTION(frame_c70a468c56daeb9f3b4c8fe8a69e121d);
	215	#endif
	216
	217	// Put the previous frame back on top.
	218	popFrameStack();
	219
	220	goto function_return_exit;
	221			185
	222	frame_exception_exit_1:;		186	frame_exception_exit_1:;
	223			187
	224	#if 0		188	#if 0
	225	RESTORE_FRAME_EXCEPTION(frame_c70a468c56daeb9f3b4c8fe8a69e121d);		189	RESTORE_FRAME_EXCEPTION(frame_c70a468c56daeb9f3b4c8fe8a69e121d);
	256			220
	257	// Return the error.		221	// Return the error.
	258	goto function_exception_exit;		222	goto function_exception_exit;
	259			223
	260	frame_no_exception_1:;		224	frame_no_exception_1:;
n			n	225	tmp_return_value = Py_None;
				226	Py_INCREF(tmp_return_value);
				227	goto function_return_exit;
	261			228
	262	NUITKA_CANNOT_GET_HERE("Return statement must have exited already.");		229	NUITKA_CANNOT_GET_HERE("Return statement must have exited already.");
	263	return NULL;		230	return NULL;
	264			231
	265	function_exception_exit:		232	function_exception_exit:
	840			807
	841	if (tmp_mvar_value_2 == NULL) {		808	if (tmp_mvar_value_2 == NULL) {
	842			809
	843	exception_type = PyExc_NameError;		810	exception_type = PyExc_NameError;
	844	Py_INCREF(exception_type);		811	Py_INCREF(exception_type);
t	845	exception_value = UNSTREAM_STRING(&constant_bin[ 70 ], 38, 0);	t	812	exception_value = UNSTREAM_STRING(&constant_bin[ 35 ], 38, 0);
	846	exception_tb = NULL;		813	exception_tb = NULL;
	847	NORMALIZE_EXCEPTION(&exception_type, &exception_value, &exception_tb);		814	NORMALIZE_EXCEPTION(&exception_type, &exception_value, &exception_tb);
	848	CHAIN_EXCEPTION(exception_value);		815	CHAIN_EXCEPTION(exception_value);
	849			816
	850	exception_lineno = 34;		817	exception_lineno = 34;